デバッグログ削除

ドキュメントを結合できるように

.idea/gradle.xml

@@ -4,6 +4,7 @@
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
+        <option name="testRunner" value="GRADLE" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
         <option name="gradleJvm" value="jbr-17" />
         <option name="modules">
@@ -30,6 +31,7 @@
             <option value="$PROJECT_DIR$/source" />
             <option value="$PROJECT_DIR$/utils" />
             <option value="$PROJECT_DIR$/vcs" />
+            <option value="$PROJECT_DIR$/viewer2" />
           </set>
         </option>
         <option name="resolveExternalAnnotations" value="false" />

.idea/misc.xml

@@ -1,6 +1,6 @@
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

app/src/main/java/one/nem/lacerta/MainActivity.java

@@ -8,9 +8,11 @@ import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;
 import androidx.navigation.NavController;
+import androidx.navigation.NavOptions;
 import androidx.navigation.fragment.NavHostFragment;
 import androidx.navigation.ui.NavigationUI;
 
+import android.app.ActivityOptions;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.graphics.Color;
@@ -60,6 +62,19 @@ public class MainActivity extends AppCompatActivity implements FragmentNavigatio
             assert navHostFragment != null;
             NavController navController = navHostFragment.getNavController();
             NavigationUI.setupWithNavController(bottomNavigationView, navController);
+
+            bottomNavigationView.setOnItemSelectedListener(item -> {
+                NavOptions navOptions = new NavOptions.Builder()
+                        .setLaunchSingleTop(true)
+                        .setEnterAnim(androidx.navigation.ui.R.anim.nav_default_enter_anim)
+                        .setExitAnim(androidx.navigation.ui.R.anim.nav_default_exit_anim)
+                        .setPopEnterAnim(androidx.navigation.ui.R.anim.nav_default_pop_enter_anim)
+                        .setPopExitAnim(androidx.navigation.ui.R.anim.nav_default_pop_exit_anim)
+                        .build();
+
+                navController.navigate(item.getItemId(), null, navOptions);
+                return true;
+            });
         }
         catch (Exception e) {
             Log.e("Init", "Failed to init navigation");
@@ -83,7 +98,8 @@ public class MainActivity extends AppCompatActivity implements FragmentNavigatio
         findViewById(R.id.scanFab).setOnClickListener(v -> {
             Toast.makeText(this, "Scan", Toast.LENGTH_SHORT).show();
             Intent intent = new Intent(this.getApplicationContext(), ScannerManagerActivity.class);
-            startActivity(intent);
+//            startActivity(intent);
+            startActivity(intent, ActivityOptions.makeCustomAnimation(this, one.nem.lacerta.shared.ui.R.anim.nav_up_enter_anim, one.nem.lacerta.shared.ui.R.anim.nav_up_exit_anim).toBundle());
         });
 
     }

component/common/build.gradle

@@ -1,5 +1,6 @@
 plugins {
     alias(libs.plugins.com.android.library)
+    id 'com.google.dagger.hilt.android'
 }
 
 android {
@@ -33,5 +34,14 @@ dependencies {
     androidTestImplementation libs.androidx.test.ext.junit
     androidTestImplementation libs.androidx.test.espresso.core
 
+    // Hilt (DI)
+    implementation libs.com.google.dagger.hilt.android
+    annotationProcessor libs.com.google.dagger.hilt.compiler
+
     implementation project(':shared:ui')
+    implementation project(':utils')
+    implementation project(':model')
+    implementation project(':data')
+
+    implementation project(':vcs')
 }

component/common/src/main/java/one/nem/lacerta/component/common/LacertaCreateTagDialog.java

@@ -0,0 +1,87 @@
+package one.nem.lacerta.component.common;
+
+import android.app.Dialog;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.EditText;
+
+import androidx.fragment.app.DialogFragment;
+
+import com.google.android.material.dialog.MaterialAlertDialogBuilder;
+
+public class LacertaCreateTagDialog extends DialogFragment {
+
+    private String title;
+
+    private String message;
+
+    private String positiveButtonText;
+
+    private String negativeButtonText;
+
+    private LacertaCreateTagDialogListener listener;
+
+    // Setter
+
+    public LacertaCreateTagDialog setListener(LacertaCreateTagDialogListener listener) {
+        this.listener = listener;
+        return this;
+    }
+
+    public LacertaCreateTagDialog setTitle(String title) {
+        this.title = title;
+        return this;
+    }
+
+    public LacertaCreateTagDialog setMessage(String message) {
+        this.message = message;
+        return this;
+    }
+
+    public LacertaCreateTagDialog setPositiveButtonText(String positiveButtonText) {
+        this.positiveButtonText = positiveButtonText;
+        return this;
+    }
+
+    public LacertaCreateTagDialog setNegativeButtonText(String negativeButtonText) {
+        this.negativeButtonText = negativeButtonText;
+        return this;
+    }
+
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(getActivity());
+        LayoutInflater inflater = requireActivity().getLayoutInflater();
+        View view = inflater.inflate(R.layout.lacerta_dialog_create_tag, null);
+
+        // TextEdit
+        EditText tag_name_edit_text = view.findViewById(R.id.tag_name_edit_text);
+        com.google.android.material.textfield.TextInputLayout tag_name_text_input_layout = view.findViewById(R.id.tag_name_text_input_layout);
+        tag_name_text_input_layout.setHint("タグの名前");
+        EditText tag_color_edit_text = view.findViewById(R.id.tag_color_edit_text);
+        com.google.android.material.textfield.TextInputLayout tag_color_text_input_layout = view.findViewById(R.id.tag_color_text_input_layout);
+        tag_color_text_input_layout.setHint("タグの色(カラーコード)");
+
+        builder.setTitle(this.title == null ? "Create new tag" : this.title);
+
+        // Button
+        builder.setPositiveButton(positiveButtonText == null ? "OK" : positiveButtonText, (dialog, which) -> {
+            String tag_name = tag_name_edit_text.getText().toString();
+            String tag_color = tag_color_edit_text.getText().toString();
+            if (listener != null) {
+                listener.onPositiveClick(tag_name, tag_color);
+            }
+        });
+        builder.setNegativeButton(negativeButtonText == null ? "Cancel" : negativeButtonText, (dialog, which) -> {
+            if (listener != null) {
+                listener.onNegativeClick();
+            }
+        });
+
+        builder.setView(view);
+        return builder.create();
+    }
+
+
+}

component/common/src/main/java/one/nem/lacerta/component/common/LacertaCreateTagDialogListener.java

@@ -0,0 +1,8 @@
+package one.nem.lacerta.component.common;
+
+public interface LacertaCreateTagDialogListener {
+
+    void onPositiveClick(String tag_name, String tag_color);
+
+    void onNegativeClick();
+}

component/common/src/main/java/one/nem/lacerta/component/common/LacertaSelectDirDialog.java

@@ -0,0 +1,163 @@
+package one.nem.lacerta.component.common;
+
+import android.app.Dialog;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.TextView;
+
+import androidx.fragment.app.DialogFragment;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.google.android.material.dialog.MaterialAlertDialogBuilder;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.AndroidEntryPoint;
+import one.nem.lacerta.data.LacertaLibrary;
+import one.nem.lacerta.model.ListItemType;
+import one.nem.lacerta.utils.LacertaLogger;
+
+@AndroidEntryPoint
+public class LacertaSelectDirDialog extends DialogFragment {
+
+    @Inject
+    LacertaLibrary lacertaLibrary;
+
+    @Inject
+    LacertaLogger logger;
+
+    private LacertaSelectDirDialogListener listener;
+
+    private String title;
+
+    private String message;
+
+    private String positiveButtonText;
+
+    private String negativeButtonText;
+
+    private SelectDirDialogItemAdapter adapter;
+
+    private RecyclerView recyclerView;
+
+    private TextView current_dir_text_view;
+
+    // Setter
+
+    public LacertaSelectDirDialog setListener(LacertaSelectDirDialogListener listener) {
+        this.listener = listener;
+        return this;
+    }
+
+    public LacertaSelectDirDialog setTitle(String title) {
+        this.title = title;
+        return this;
+    }
+
+    public LacertaSelectDirDialog setMessage(String message) {
+        this.message = message;
+        return this;
+    }
+
+    public LacertaSelectDirDialog setPositiveButtonText(String positiveButtonText) {
+        this.positiveButtonText = positiveButtonText;
+        return this;
+    }
+
+    public LacertaSelectDirDialog setNegativeButtonText(String negativeButtonText) {
+        this.negativeButtonText = negativeButtonText;
+        return this;
+    }
+
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+
+        super.onCreateDialog(savedInstanceState);
+
+        MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(getActivity());
+        LayoutInflater inflater = requireActivity().getLayoutInflater();
+        View view = inflater.inflate(R.layout.lacerta_dialog_select_dir, null);
+
+        // 高さを画面の40%にする
+        int height = (int) (getResources().getDisplayMetrics().heightPixels * 0.4);
+        view.setMinimumHeight(height);
+
+        this.recyclerView = view.findViewById(R.id.select_dir_recycler_view);
+        this.current_dir_text_view = view.findViewById(R.id.current_dir_text_view);
+
+        this.adapter = new SelectDirDialogItemAdapter(new LacertaSelectDirDialogInternalEventListener() {
+            @Override
+            public void onDirSelected(String name, String itemId) {
+                showRecyclerViewItem(itemId);
+            }
+
+            @Override
+            public void onBackSelected(String parentId) {
+                showRecyclerViewItem(parentId);
+            }
+        });
+
+        this.recyclerView.setAdapter(this.adapter);
+        builder.setView(view);
+
+        showRecyclerViewItem(null); // get root folder
+
+        builder.setTitle(this.title == null ? "Select a directory" : this.title);
+        builder.setMessage(this.message == null ? "Select a directory" : this.message);
+        builder.setPositiveButton(this.positiveButtonText == null ? "OK" : this.positiveButtonText, (dialog, which) -> {
+            if (listener != null) {
+                listener.onDirSelected(
+                        adapter.getCurrentPageTitle() == null ? null : adapter.getCurrentPageTitle(),
+                        adapter.getCurrentId() == null ? null : adapter.getCurrentId());
+            }
+        });
+        builder.setNegativeButton(this.negativeButtonText == null ? "Cancel" : this.negativeButtonText, (dialog, which) -> {
+            if (listener != null) {
+                listener.onCanceled();
+            }
+        });
+        return builder.create();
+    }
+
+    private void showRecyclerViewItem(String targetDirId) {
+        lacertaLibrary.getPublicPath(targetDirId, ListItemType.ITEM_TYPE_FOLDER).thenAccept(publicPath -> {
+            getActivity().runOnUiThread(() -> {
+                if (publicPath != null) {
+                    current_dir_text_view.setText("/" + publicPath.getStringPath()); // TODO-rca: PublicPathの実装を修正する
+                } else {
+                    current_dir_text_view.setText("/");
+                }
+            });
+        });
+        lacertaLibrary.getFolderList(targetDirId).thenAccept(libraryItemPage -> {
+            getActivity().runOnUiThread(() -> {
+                int currentCount = adapter.getItemCount();
+                String currentDirId = adapter.getCurrentId();
+                if (currentDirId == null) {
+                    // Rootが関わる推移 (Rootからの推移)
+                    adapter.setListItems(libraryItemPage);
+                    adapter.notifyItemRangeRemoved(0, currentCount);
+                    adapter.notifyItemRangeInserted(0, libraryItemPage.getListItems().size());
+                } else if (libraryItemPage.getPageId() == null) {
+                    // Rootが関わる推移 (Rootへの推移)
+                    adapter.setListItems(libraryItemPage);
+                    adapter.notifyItemRangeRemoved(0, currentCount);
+                    adapter.notifyItemRangeInserted(0, libraryItemPage.getListItems().size());
+                } else if (libraryItemPage.getPageId() != null) {
+                    // Rootが関わらない推移
+                    adapter.setListItems(libraryItemPage);
+                    adapter.notifyItemRangeRemoved(1, currentCount);
+                    adapter.notifyItemRangeInserted(1, libraryItemPage.getListItems().size());
+                } else {
+                    // その他の遷移(安全側に倒すため全アイテム更新)
+                    logger.warn("LacertaSelectDirDialog", "Unknown transition.");
+                    logger.warn("LacertaSelectDirDialog", "currentDirId: " + currentDirId + ", libraryItemPage.getPageId(): " + libraryItemPage.getPageId());
+                    adapter.setListItems(libraryItemPage);
+                    adapter.notifyItemRangeRemoved(0, currentCount);
+                    adapter.notifyItemRangeInserted(0, libraryItemPage.getListItems().size());
+                }
+            });
+        });
+    }
+}

component/common/src/main/java/one/nem/lacerta/component/common/LacertaSelectDirDialogInternalEventListener.java

@@ -0,0 +1,6 @@
+package one.nem.lacerta.component.common;
+
+public interface LacertaSelectDirDialogInternalEventListener {
+    void onDirSelected(String name, String itemId);
+    void onBackSelected(String parentId);
+}

component/common/src/main/java/one/nem/lacerta/component/common/LacertaSelectDirDialogListener.java

@@ -0,0 +1,7 @@
+package one.nem.lacerta.component.common;
+
+public interface LacertaSelectDirDialogListener {
+
+    void onDirSelected(String name, String itemId);
+    void onCanceled();
+}

component/common/src/main/java/one/nem/lacerta/component/common/LacertaSelectRevDialog.java

@@ -0,0 +1,112 @@
+package one.nem.lacerta.component.common;
+
+import android.app.Dialog;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.Toast;
+
+import androidx.fragment.app.DialogFragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.google.android.material.dialog.MaterialAlertDialogBuilder;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.AndroidEntryPoint;
+import one.nem.lacerta.data.LacertaLibrary;
+import one.nem.lacerta.utils.LacertaLogger;
+import one.nem.lacerta.vcs.LacertaVcs;
+import one.nem.lacerta.vcs.factory.LacertaVcsFactory;
+
+
+@AndroidEntryPoint
+public class LacertaSelectRevDialog extends DialogFragment {
+
+    @Inject
+    LacertaVcsFactory lacertaVcsFactory;
+
+    @Inject
+    LacertaLogger logger;
+
+    String title;
+    String documentId;
+    String message;
+    String negativeButtonText;
+
+    LacertaSelectRevDialogListener listener;
+
+    public LacertaSelectRevDialog setTitle(String title) {
+        this.title = title;
+        return this;
+    }
+
+    public LacertaSelectRevDialog setDocumentId(String documentId) {
+        this.documentId = documentId;
+        return this;
+    }
+
+    public LacertaSelectRevDialog setMessage(String message) {
+        this.message = message;
+        return this;
+    }
+
+    public LacertaSelectRevDialog setNegativeButtonText(String negativeButtonText) {
+        this.negativeButtonText = negativeButtonText;
+        return this;
+    }
+
+    public LacertaSelectRevDialog setListener(LacertaSelectRevDialogListener listener) {
+        this.listener = listener;
+        return this;
+    }
+
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        super.onCreateDialog(savedInstanceState);
+
+        MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(getActivity());
+        LayoutInflater inflater = requireActivity().getLayoutInflater();
+        View view = inflater.inflate(R.layout.lacerta_dialog_select_rev, null);
+
+        int height = (int) (getResources().getDisplayMetrics().heightPixels * 0.4);
+        view.setMinimumHeight(height);
+
+        RecyclerView recyclerView = view.findViewById(R.id.select_rev_recycler_view);
+
+        SelectRevDialogItemAdapter adapter = new SelectRevDialogItemAdapter(revId -> {
+            if (listener != null) {
+                listener.onItemSelected(revId);
+                dismiss();
+            }
+        });
+                recyclerView.setAdapter(adapter);
+        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
+        builder.setView(view);
+
+        if (this.documentId == null) {
+            logger.error("SelectRevDialog", "documentId is null");
+            logger.e_code("0296fb0c-07a3-4971-a280-bd1a61461bb7");
+            Toast.makeText(getContext(), "Sorry, something went wrong", Toast.LENGTH_SHORT).show();
+            dismiss();
+        }
+        LacertaVcs lacertaVcs = lacertaVcsFactory.create(this.documentId);
+        lacertaVcs.getRevisionHistory().thenAccept(revList -> {
+            adapter.setRevList(revList);
+            adapter.notifyDataSetChanged(); // TODO-rca:時間に応じてアニメーションをつける
+        });
+
+
+        builder.setTitle(title == null ? "Select Rev" : title);
+        builder.setMessage(message == null ? "Select Rev" : message);
+        builder.setNegativeButton(negativeButtonText == null ? "Cancel" : negativeButtonText, (dialog, which) -> {
+            if (listener != null) {
+                listener.onDialogCanceled();
+                dismiss();
+            }
+        });
+
+        return builder.create();
+    }
+}

component/common/src/main/java/one/nem/lacerta/component/common/LacertaSelectRevDialogInternalListener.java

@@ -0,0 +1,6 @@
+package one.nem.lacerta.component.common;
+
+public interface LacertaSelectRevDialogInternalListener {
+
+    void onItemSelected(String revId);
+}

component/common/src/main/java/one/nem/lacerta/component/common/LacertaSelectRevDialogListener.java

@@ -0,0 +1,8 @@
+package one.nem.lacerta.component.common;
+
+public interface LacertaSelectRevDialogListener {
+
+    void onItemSelected(String revId);
+
+    void onDialogCanceled();
+}

component/common/src/main/java/one/nem/lacerta/component/common/SelectDirDialogItemAdapter.java

@@ -0,0 +1,100 @@
+package one.nem.lacerta.component.common;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import one.nem.lacerta.model.LibraryItemPage;
+import one.nem.lacerta.model.ListItem;
+import one.nem.lacerta.model.ListItemType;
+
+public class SelectDirDialogItemAdapter extends RecyclerView.Adapter<SelectDirDialogItemAdapter.SelectDirDialogItemViewHolder> {
+
+
+    private LibraryItemPage libraryItemPage;
+    LacertaSelectDirDialogInternalEventListener listener;
+
+    public SelectDirDialogItemAdapter(LacertaSelectDirDialogInternalEventListener listener) {
+        this.listener = listener;
+    }
+
+    public void setListItems(LibraryItemPage libraryItemPage) {
+        this.libraryItemPage = libraryItemPage;
+        if (this.libraryItemPage.getPageId() != null) { // ルートディレクトリの場合は戻るボタンを表示しない
+            this.libraryItemPage.getListItems().add(0, new ListItem("戻る", " ", ListItemType.ITEM_TYPE_ACTION_BACK, null));
+        }
+    }
+
+    @NonNull
+    @Override
+    public SelectDirDialogItemViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext()).inflate(one.nem.lacerta.shared.ui.R.layout.common_list_item, parent, false);
+        return new SelectDirDialogItemViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(SelectDirDialogItemViewHolder holder, int position) {
+        ListItem listItem = libraryItemPage.getListItems().get(position);
+        holder.title.setText(listItem.getTitle());
+        holder.description.setText(listItem.getDescription());
+        holder.icon.setImageResource(listItem.getItemType().getIconId());
+        if(listItem.getItemType() == ListItemType.ITEM_TYPE_ACTION_BACK) {
+            holder.itemView.setOnClickListener(v -> listener.onBackSelected(this.libraryItemPage.getParentId()));
+        } else {
+            holder.itemView.setOnClickListener(v -> listener.onDirSelected(listItem.getTitle(), listItem.getItemId()));
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        return this.libraryItemPage == null ? 0 : this.libraryItemPage.getListItems().size();
+    }
+
+    public String getCurrentId() {
+        if (this.libraryItemPage == null) {
+            return null;
+        } else {
+            if (this.libraryItemPage.getPageId() == null) {
+                return null;
+            } else {
+                return this.libraryItemPage.getPageId();
+            }
+        }
+    }
+
+    public String getCurrentPageTitle() {
+        if (this.libraryItemPage == null) {
+            return null;
+        } else {
+            if (this.libraryItemPage.getPageId() == null) {
+                return null;
+            } else {
+                return this.libraryItemPage.getPageTitle();
+            }
+        }
+    }
+
+    public static class SelectDirDialogItemViewHolder extends RecyclerView.ViewHolder {
+
+        TextView title;
+        TextView description;
+
+        ImageView icon;
+
+
+        public SelectDirDialogItemViewHolder(@NonNull View itemView) {
+            super(itemView);
+
+            title = itemView.findViewById(one.nem.lacerta.shared.ui.R.id.item_title);
+            description = itemView.findViewById(one.nem.lacerta.shared.ui.R.id.item_description);
+            icon = itemView.findViewById(one.nem.lacerta.shared.ui.R.id.item_icon);
+            description.setVisibility(View.GONE); // 暫定
+
+        }
+    }
+}

component/common/src/main/java/one/nem/lacerta/component/common/SelectRevDialogItemAdapter.java

@@ -0,0 +1,66 @@
+package one.nem.lacerta.component.common;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+
+import one.nem.lacerta.model.VcsRevModel;
+
+public class SelectRevDialogItemAdapter extends RecyclerView.Adapter<SelectRevDialogItemAdapter.SelectRevDialogItemViewHolder>{
+
+    ArrayList<VcsRevModel> revList;
+
+    LacertaSelectRevDialogInternalListener listener;
+
+    public SelectRevDialogItemAdapter(LacertaSelectRevDialogInternalListener listener) {
+        this.listener = listener;
+    }
+
+    public void setRevList(ArrayList<VcsRevModel> revList) {
+        this.revList = revList;
+    }
+
+    @NonNull
+    @Override
+    public SelectRevDialogItemAdapter.SelectRevDialogItemViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.common_rev_list_item, parent, false);
+        return new SelectRevDialogItemAdapter.SelectRevDialogItemViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull SelectRevDialogItemAdapter.SelectRevDialogItemViewHolder holder, int position) {
+        VcsRevModel rev = revList.get(position);
+        holder.title.setText(rev.getCommitMessage());
+        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
+        holder.description.setText(simpleDateFormat.format(rev.getCreatedAt()));
+        holder.revId.setText("RevID: " + rev.getId());
+
+        holder.itemView.setOnClickListener(v -> listener.onItemSelected(rev.getId()));
+    }
+
+    @Override
+    public int getItemCount() {
+        return this.revList == null ? 0 : this.revList.size();
+    }
+
+    public class SelectRevDialogItemViewHolder extends RecyclerView.ViewHolder {
+
+    TextView title;
+    TextView description;
+    TextView revId;
+
+        public SelectRevDialogItemViewHolder(@NonNull View itemView) {
+            super(itemView);
+            title = itemView.findViewById(R.id.rev_item_title);
+            description = itemView.findViewById(R.id.rev_item_detail);
+            revId = itemView.findViewById(R.id.rev_item_id);
+        }
+    }
+}

component/common/src/main/java/one/nem/lacerta/component/common/picker/LacertaDirPickerDialog.java

@@ -0,0 +1,115 @@
+package one.nem.lacerta.component.common.picker;
+
+import android.app.Dialog;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.TextView;
+
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.google.android.material.dialog.MaterialAlertDialogBuilder;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.AndroidEntryPoint;
+import one.nem.lacerta.component.common.R;
+import one.nem.lacerta.component.common.picker.base.LacertaFilePickerAdapterBase;
+import one.nem.lacerta.component.common.picker.base.LacertaFilePickerDialogBase;
+import one.nem.lacerta.data.LacertaLibrary;
+import one.nem.lacerta.model.ListItemType;
+import one.nem.lacerta.model.PublicPath;
+
+@AndroidEntryPoint
+public class LacertaDirPickerDialog extends LacertaFilePickerDialogBase {
+
+    @Inject
+    LacertaLibrary lacertaLibrary;
+
+    // Listener
+    public interface LacertaDirPickerDialogListener {
+        void onDirSelected(String name, String dirId);
+    }
+
+    // Variables
+    LacertaDirPickerDialogListener listener;
+
+    // Setter
+    public LacertaDirPickerDialog setListener(LacertaDirPickerDialogListener listener) {
+        this.listener = listener;
+        return this;
+    }
+
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        super.onCreateDialog(savedInstanceState);
+
+        MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(getActivity());
+
+        View view = LayoutInflater.from(getActivity()).inflate(R.layout.lacerta_dialog_select_dir, null);
+
+        // 高さを画面の40%にする
+        int height = (int) (getResources().getDisplayMetrics().heightPixels * 0.4);
+        view.setMinimumHeight(height);
+
+        RecyclerView recyclerView = view.findViewById(R.id.select_dir_recycler_view);
+        TextView currentDirTextView = view.findViewById(R.id.current_dir_text_view);
+
+        LacertaFilePickerAdapterBase adapter = new LacertaFilePickerAdapterBase();
+        adapter.setListener(new LacertaFilePickerAdapterBase.LacertaFilePickerAdapterListener() {
+            @Override
+            public void onItemSelected(String dirId) {
+                updateList(adapter, dirId);
+                updatePublicPath(currentDirTextView, dirId);
+            }
+
+            @Override
+            public void onBackSelected(String dirId) {
+                updateList(adapter, dirId);
+                updatePublicPath(currentDirTextView, dirId);
+            }
+        });
+
+        recyclerView.setAdapter(adapter);
+        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
+
+        this.updateList(adapter, null); // ルートディレクトリのリストを表示
+
+        // Init dialog
+        builder.setTitle(this.title == null ? "フォルダを選択" : this.title);
+        builder.setMessage(this.message == null ? "フォルダを選択してください" : this.message);
+        builder.setView(view);
+        builder.setPositiveButton(this.positiveButtonText == null ? "OK" : this.positiveButtonText, (dialog, which) -> {
+            if (listener != null) {
+                listener.onDirSelected(
+                        adapter.getCurrentPageTitle(),
+                        adapter.getCurrentId());
+            }
+        });
+        builder.setNegativeButton(this.negativeButtonText == null ? "キャンセル" : this.negativeButtonText, (dialog, which) -> {
+            if (listener != null) {
+                dismiss();
+            }
+        });
+
+        return builder.create();
+    }
+
+    private void updatePublicPath(TextView currentDirTextView, String folderId) {
+        lacertaLibrary.getPublicPath(folderId, ListItemType.ITEM_TYPE_FOLDER).thenAccept(publicPath -> {
+            this.updatePathTextView(currentDirTextView, publicPath, ListItemType.ITEM_TYPE_FOLDER);
+        });
+    }
+
+    private void updateList(LacertaFilePickerAdapterBase adapter, String folderId) {
+        lacertaLibrary.getFolderList(folderId).thenAccept(libraryItemPage -> {
+            int currentCount = adapter.getItemCount();
+            String currentId = adapter.getCurrentId();
+//            adapter.setListItems(libraryItemPage);
+            getActivity().runOnUiThread(() -> {
+                this.updateListView(adapter, libraryItemPage, currentCount, currentId);
+            });
+        });
+    }
+}

component/common/src/main/java/one/nem/lacerta/component/common/picker/LacertaFilePickerAdapter.java

@@ -0,0 +1,33 @@
+package one.nem.lacerta.component.common.picker;
+
+import one.nem.lacerta.component.common.picker.base.LacertaFilePickerAdapterBase;
+import one.nem.lacerta.model.ListItem;
+import one.nem.lacerta.model.ListItemType;
+
+public class LacertaFilePickerAdapter extends LacertaFilePickerAdapterBase {
+
+    // Listener
+    public interface LacertaFilePickerAdapterListener extends LacertaFilePickerAdapterBase.LacertaFilePickerAdapterListener {
+        void onDocumentSelected(String documentId);
+    }
+
+    // Variables
+    LacertaFilePickerAdapterListener listener;
+
+    // Setter
+    public LacertaFilePickerAdapter setListener(LacertaFilePickerAdapterListener listener) {
+        this.listener = listener;
+        return this;
+    }
+
+    @Override
+    public void onBindViewHolder(LacertaFilePickerViewHolder holder, int position) {
+        super.onBindViewHolder(holder, position);
+        if (libraryItemPage.getListItems().get(position).getItemType() == ListItemType.ITEM_TYPE_DOCUMENT) {
+            holder.itemView.setOnClickListener(v -> {
+                ListItem listItem = libraryItemPage.getListItems().get(position);
+                listener.onDocumentSelected(listItem.getItemId());
+            });
+        }
+    }
+}

component/common/src/main/java/one/nem/lacerta/component/common/picker/LacertaFilePickerDialog.java

@@ -0,0 +1,114 @@
+package one.nem.lacerta.component.common.picker;
+
+import android.app.Dialog;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.TextView;
+
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.google.android.material.dialog.MaterialAlertDialogBuilder;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.AndroidEntryPoint;
+import one.nem.lacerta.component.common.R;
+import one.nem.lacerta.component.common.picker.base.LacertaFilePickerAdapterBase;
+import one.nem.lacerta.component.common.picker.base.LacertaFilePickerDialogBase;
+import one.nem.lacerta.data.LacertaLibrary;
+import one.nem.lacerta.model.ListItemType;
+
+@AndroidEntryPoint
+public class LacertaFilePickerDialog extends LacertaFilePickerDialogBase {
+
+    @Inject
+    LacertaLibrary lacertaLibrary;
+
+    // Listener
+    public interface LacertaFilePickerDialogListener {
+        void onFileSelected(String name, String fileId);
+    }
+
+    // Variables
+    LacertaFilePickerDialogListener listener;
+
+    // Setter
+    public LacertaFilePickerDialog setListener(LacertaFilePickerDialogListener listener) {
+        this.listener = listener;
+        return this;
+    }
+
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        super.onCreateDialog(savedInstanceState);
+
+        MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(getActivity());
+
+        View view = LayoutInflater.from(getActivity()).inflate(R.layout.lacerta_dialog_select_dir, null);
+
+        // 高さを画面の40%にする
+        int height = (int) (getResources().getDisplayMetrics().heightPixels * 0.4);
+        view.setMinimumHeight(height);
+
+        RecyclerView recyclerView = view.findViewById(R.id.select_dir_recycler_view);
+        TextView currentDirTextView = view.findViewById(R.id.current_dir_text_view);
+
+        LacertaFilePickerAdapter adapter = new LacertaFilePickerAdapter();
+        adapter.setListener(new LacertaFilePickerAdapter.LacertaFilePickerAdapterListener() {
+            @Override
+            public void onItemSelected(String dirId) {
+                updateList(adapter, dirId);
+                updatePublicPath(currentDirTextView, dirId);
+            }
+
+            @Override
+            public void onBackSelected(String dirId) {
+                updateList(adapter, dirId);
+                updatePublicPath(currentDirTextView, dirId);
+            }
+
+            @Override
+            public void onDocumentSelected(String documentId) {
+                if (listener != null) {
+                    dismiss();
+                    listener.onFileSelected(documentId, documentId);
+                }
+            }
+        });
+
+        recyclerView.setAdapter(adapter);
+        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
+
+        this.updateList(adapter, null); // ルートディレクトリのリストを表示
+
+        // Init dialog
+        builder.setTitle(this.title == null ? "ファイルを選択" : this.title);
+        builder.setMessage(this.message == null ? "ファイルを選択してください" : this.message);
+        builder.setView(view);
+        builder.setNegativeButton(this.negativeButtonText == null ? "キャンセル" : this.negativeButtonText, (dialog, which) -> {
+            dismiss();
+        });
+
+        return builder.create();
+    }
+
+    private void updatePublicPath(TextView currentDirTextView, String folderId) {
+        lacertaLibrary.getPublicPath(folderId, ListItemType.ITEM_TYPE_FOLDER).thenAccept(publicPath -> {
+            this.updatePathTextView(currentDirTextView, publicPath, ListItemType.ITEM_TYPE_FOLDER);
+        });
+    }
+
+    private void updateList(LacertaFilePickerAdapterBase adapter, String folderId) {
+        lacertaLibrary.getLibraryPage(folderId, 100).thenAccept(libraryItemPage -> { // TODO-rca: 100 is a magic number
+            int currentCount = adapter.getItemCount();
+            String currentId = adapter.getCurrentId();
+//            adapter.setListItems(libraryItemPage);
+            getActivity().runOnUiThread(() -> {
+                this.updateListView(adapter, libraryItemPage, currentCount, currentId);
+            });
+        });
+    }
+
+}

component/common/src/main/java/one/nem/lacerta/component/common/picker/base/LacertaFilePickerAdapterBase.java

@@ -0,0 +1,110 @@
+package one.nem.lacerta.component.common.picker.base;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import one.nem.lacerta.model.LibraryItemPage;
+import one.nem.lacerta.model.ListItem;
+import one.nem.lacerta.model.ListItemType;
+
+public class LacertaFilePickerAdapterBase extends RecyclerView.Adapter<LacertaFilePickerAdapterBase.LacertaFilePickerViewHolder> {
+
+    // Listener
+    public interface LacertaFilePickerAdapterListener {
+        void onItemSelected(String dirId);
+        void onBackSelected(String dirId);
+    }
+
+    protected LibraryItemPage libraryItemPage;
+
+    protected LacertaFilePickerAdapterListener listener;
+
+    // Empty constructor
+    public LacertaFilePickerAdapterBase() {
+    }
+
+    public void setListItems(LibraryItemPage libraryItemPage) {
+        this.libraryItemPage = libraryItemPage;
+        if (this.libraryItemPage.getPageId() != null) { // ルートディレクトリの場合は戻るボタンを表示しない
+            this.libraryItemPage.getListItems().add(0, new ListItem("戻る", " ", ListItemType.ITEM_TYPE_ACTION_BACK, null));
+        }
+    }
+
+    public void setListener(LacertaFilePickerAdapterListener listener) {
+        this.listener = listener;
+    }
+
+    @NonNull
+    @Override
+    public LacertaFilePickerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext()).inflate(one.nem.lacerta.shared.ui.R.layout.common_list_item, parent, false);
+        return new LacertaFilePickerViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(LacertaFilePickerViewHolder holder, int position) {
+        ListItem listItem = libraryItemPage.getListItems().get(position);
+        holder.title.setText(listItem.getTitle());
+        holder.description.setText(listItem.getDescription());
+        holder.icon.setImageResource(listItem.getItemType().getIconId());
+        if(listItem.getItemType() == ListItemType.ITEM_TYPE_ACTION_BACK) {
+            holder.itemView.setOnClickListener(v -> listener.onBackSelected(this.libraryItemPage.getParentId()));
+        } else {
+            holder.itemView.setOnClickListener(v -> listener.onItemSelected(listItem.getItemId()));
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        return this.libraryItemPage == null ? 0 : this.libraryItemPage.getListItems().size();
+    }
+
+    public String getCurrentId() {
+        if (this.libraryItemPage == null) {
+            return null;
+        } else {
+            if (this.libraryItemPage.getPageId() == null) {
+                return null;
+            } else {
+                return this.libraryItemPage.getPageId();
+            }
+        }
+    }
+
+    public String getCurrentPageTitle() {
+        if (this.libraryItemPage == null) {
+            return null;
+        } else {
+            if (this.libraryItemPage.getPageId() == null) {
+                return null;
+            } else {
+                return this.libraryItemPage.getPageTitle();
+            }
+        }
+    }
+
+    public static class LacertaFilePickerViewHolder extends RecyclerView.ViewHolder {
+
+        TextView title;
+        TextView description;
+
+        ImageView icon;
+
+
+        public LacertaFilePickerViewHolder(@NonNull View itemView) {
+            super(itemView);
+
+            title = itemView.findViewById(one.nem.lacerta.shared.ui.R.id.item_title);
+            description = itemView.findViewById(one.nem.lacerta.shared.ui.R.id.item_description);
+            icon = itemView.findViewById(one.nem.lacerta.shared.ui.R.id.item_icon);
+            description.setVisibility(View.GONE); // 暫定
+
+        }
+    }
+}

component/common/src/main/java/one/nem/lacerta/component/common/picker/base/LacertaFilePickerDialogBase.java

@@ -0,0 +1,88 @@
+package one.nem.lacerta.component.common.picker.base;
+
+import android.widget.TextView;
+
+import androidx.fragment.app.DialogFragment;
+
+import javax.inject.Inject;
+
+import one.nem.lacerta.model.LibraryItemPage;
+import one.nem.lacerta.model.ListItemType;
+import one.nem.lacerta.model.PublicPath;
+import one.nem.lacerta.utils.LacertaLogger;
+
+public class LacertaFilePickerDialogBase extends DialogFragment {
+    @Inject
+    LacertaLogger logger;
+
+    // Variables
+    protected String title;
+    protected String message;
+    protected String positiveButtonText;
+    protected String negativeButtonText;
+
+    // Setter
+    public LacertaFilePickerDialogBase setTitle(String title) {
+        this.title = title;
+        return this;
+    }
+
+    public LacertaFilePickerDialogBase setMessage(String message) {
+        this.message = message;
+        return this;
+    }
+
+    public LacertaFilePickerDialogBase setPositiveButtonText(String positiveButtonText) {
+        this.positiveButtonText = positiveButtonText;
+        return this;
+    }
+
+    public LacertaFilePickerDialogBase setNegativeButtonText(String negativeButtonText) {
+        this.negativeButtonText = negativeButtonText;
+        return this;
+    }
+
+    // Methods
+
+    protected void updatePathTextView(TextView currentDirTextView, PublicPath publicPath, ListItemType listItemType) {
+        if (publicPath == null) {
+            currentDirTextView.setText("/");
+        } else {
+            if (listItemType == ListItemType.ITEM_TYPE_FOLDER) {
+                currentDirTextView.setText("/" + publicPath.getStringPath()); // TODO-rca: PublicPath側の実装を治すべき
+            } else {
+                currentDirTextView.setText("/" + publicPath.parent().getStringPath()); // TODO-rca: PublicPath側の実装を治すべき
+            }
+        }
+    }
+
+    protected void updateListView(LacertaFilePickerAdapterBase adapter, LibraryItemPage libraryItemPage, int currentCount, String currentDirId) {
+        if (currentCount == 0) {
+            // 初回表示
+            adapter.setListItems(libraryItemPage);
+            adapter.notifyItemRangeInserted(0, libraryItemPage.getListItems().size());
+        } else if (currentDirId == null) {
+            // Rootが関わる推移 (Rootからの推移)
+            adapter.setListItems(libraryItemPage);
+            adapter.notifyItemRangeRemoved(0, currentCount);
+            adapter.notifyItemRangeInserted(0, libraryItemPage.getListItems().size());
+        } else if (libraryItemPage.getPageId() == null) {
+            // Rootが関わる推移 (Rootへの推移)
+            adapter.setListItems(libraryItemPage);
+            adapter.notifyItemRangeRemoved(0, currentCount);
+            adapter.notifyItemRangeInserted(0, libraryItemPage.getListItems().size());
+        } else if (libraryItemPage.getPageId() != null) {
+            // Rootが関わらない推移
+            adapter.setListItems(libraryItemPage);
+            adapter.notifyItemRangeRemoved(1, currentCount);
+            adapter.notifyItemRangeInserted(1, libraryItemPage.getListItems().size());
+        } else {
+            // その他の遷移(安全側に倒すため全アイテム更新)
+            logger.warn("FilePickerDialogBase", "Unknown transition.");
+            logger.warn("FilePickerDialogBase", "currentDirId: " + currentDirId + ", libraryItemPage.getPageId(): " + libraryItemPage.getPageId());
+            adapter.setListItems(libraryItemPage);
+            adapter.notifyItemRangeRemoved(0, currentCount);
+            adapter.notifyItemRangeInserted(0, libraryItemPage.getListItems().size());
+        }
+    }
+}

component/common/src/main/res/layout/common_rev_list_item.xml

@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingHorizontal="24dp"
+    android:paddingVertical="16dp">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/item_text_container"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <TextView
+            android:id="@+id/rev_item_title"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textSize="16sp"
+            android:layout_marginEnd="8dp"
+            android:text="Placeholder Title"
+            android:textColor="@color/colorOnSurface"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <TextView
+            android:id="@+id/rev_item_detail"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textSize="14sp"
+            android:text="2023/01/01 00:00:00 - hogehoge"
+            android:textColor="@color/colorOnSurfaceSecondary"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/rev_item_title" />
+
+        <TextView
+            android:id="@+id/rev_item_id"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textSize="12sp"
+            android:text="dd76a029-51f1-40f7-b316-a0c74bbfebb1(Example)"
+            android:textColor="@color/colorOnSurfaceSecondary"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/rev_item_detail" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>

component/common/src/main/res/layout/lacerta_dialog_create_tag.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <com.google.android.material.textfield.TextInputLayout
+        android:id="@+id/tag_name_text_input_layout"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingTop="8dp"
+        android:paddingHorizontal="16dp"
+        style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/tag_name_edit_text"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+    </com.google.android.material.textfield.TextInputLayout>
+
+    <com.google.android.material.textfield.TextInputLayout
+        android:id="@+id/tag_color_text_input_layout"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingTop="8dp"
+        android:paddingHorizontal="16dp"
+        style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox">
+
+        <!-- todo: add color picker -->
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/tag_color_edit_text"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+
+    </com.google.android.material.textfield.TextInputLayout>
+</LinearLayout>

component/common/src/main/res/layout/lacerta_dialog_select_dir.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <com.google.android.material.textview.MaterialTextView
+        android:id="@+id/current_dir_text_view"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="32dp" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/select_dir_recycler_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"/>
+
+</LinearLayout>

component/common/src/main/res/layout/lacerta_dialog_select_rev.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/select_rev_recycler_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+</FrameLayout>

component/viewer/build.gradle

@@ -56,4 +56,11 @@ dependencies {
 
     implementation project(':vcs')
 
+    implementation project(':component:common')
+
+    // TODO-rca: バージョンカタログに切り出す
+    implementation "com.hendraanggrian.material:collapsingtoolbarlayout-subtitle:1.5.0"
+
+    // ViewPager2
+    implementation "androidx.viewpager2:viewpager2:1.0.0"
 }

component/viewer/src/main/java/one/nem/lacerta/component/viewer/BookMark/BookMarkFragment.java

@@ -0,0 +1,73 @@
+package one.nem.lacerta.component.viewer.BookMark;
+
+import android.os.Bundle;
+import android.view.GestureDetector;
+import android.view.LayoutInflater;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Toast;
+
+import androidx.fragment.app.Fragment;
+
+import java.util.UUID;
+
+import javax.inject.Inject;
+
+import one.nem.lacerta.component.viewer.R;
+
+// BookMarkFragment.java
+public class BookMarkFragment extends Fragment {
+
+    @Inject
+    BookmarkRepository bookmarkRepository;
+
+    private GestureDetector gestureDetector;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_bookmark, container, false);
+    }
+
+    @Override
+    public void onViewCreated(View view, Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        gestureDetector = new GestureDetector(getContext(), new GestureDetector.SimpleOnGestureListener() {
+            @Override
+            public boolean onDoubleTap(MotionEvent e) {
+                // ダブルタップが検出された時の処理
+                handleDoubleTap();
+                return true;
+            }
+        });
+
+        // ブックマークボタンがダブルタップされた時の処理
+        view.setOnTouchListener(new View.OnTouchListener() {
+            @Override
+            public boolean onTouch(View v, MotionEvent event) {
+                return gestureDetector.onTouchEvent(event);
+            }
+        });
+    }
+
+    private void handleDoubleTap() {
+        // ダブルタップが検出された時の処理
+        // ブックマークを作成
+        String pageId = "current_page_id";
+        String title = "current_page_title";
+
+        Bookmark bookmark = new Bookmark(
+                UUID.randomUUID().toString(),
+                title,
+                pageId,
+                System.currentTimeMillis()
+        );
+
+        // ブックマークを保存
+        bookmarkRepository.addBookmark(bookmark);
+
+        // ユーザーに成功メッセージを表示
+        Toast.makeText(getContext(), "ダブルタップでブックマークが追加されました", Toast.LENGTH_SHORT).show();
+    }
+}

component/viewer/src/main/java/one/nem/lacerta/component/viewer/BookMark/BookMarkListFragment.java

@@ -0,0 +1,48 @@
+package one.nem.lacerta.component.viewer.BookMark;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.List;
+
+import javax.inject.Inject;
+
+import one.nem.lacerta.component.viewer.R;
+
+// BookMarkListFragment.java
+public class BookMarkListFragment extends Fragment {
+    @Inject
+    BookmarkRepository bookmarkRepository;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_bookmark_list, container, false);
+    }
+
+    @Override
+    public void onViewCreated(View view, Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        // ブックマーク一覧を取得
+        List<Bookmark> bookmarks = bookmarkRepository.getAllBookmarks();
+
+        // ブックマーク一覧を表示するRecyclerViewのセットアップ
+        RecyclerView recyclerView = view.findViewById(R.id.recycler_view);
+        BookmarkAdapter adapter = new BookmarkAdapter(bookmarks, new OnBookmarkClickListener() {
+            @Override
+            public void onBookmarkClick(Bookmark selectedBookmark) {
+                // ブックマークが選択された時の処理
+                // 例: ブックマークに関連するページを表示する
+            }
+        });
+
+        recyclerView.setLayoutManager(new LinearLayoutManager(requireContext()));
+        recyclerView.setAdapter(adapter);
+    }
+}

component/viewer/src/main/java/one/nem/lacerta/component/viewer/BookMark/Bookmark.java

@@ -0,0 +1,56 @@
+package one.nem.lacerta.component.viewer.BookMark;
+
+// Bookmark.java
+public class Bookmark {
+    private String id; // ブックマークの一意の識別子
+    private String title;
+    private String pageId; // ブックマークが参照するページの識別子
+    private long timestamp; // ブックマークが作成された時刻
+
+    public Bookmark(String id, String title, String pageId, long timestamp) {
+        this.id = id;
+        this.title = title;
+        this.pageId = pageId;
+        this.timestamp = timestamp;
+    }
+
+    public Bookmark() {
+        // Empty constructor
+    }
+
+    // Getter
+
+    public String getId() {
+        return id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public String getPageId() {
+        return pageId;
+    }
+
+    public long getTimestamp() {
+        return timestamp;
+    }
+
+    // Setter
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public void setPageId(String pageId) {
+        this.pageId = pageId;
+    }
+
+    public void setTimestamp(long timestamp) {
+        this.timestamp = timestamp;
+    }
+}

component/viewer/src/main/java/one/nem/lacerta/component/viewer/BookMark/BookmarkAdapter.java

@@ -0,0 +1,61 @@
+package one.nem.lacerta.component.viewer.BookMark;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.List;
+
+import one.nem.lacerta.component.viewer.R;
+
+
+public class BookmarkAdapter extends RecyclerView.Adapter<BookmarkAdapter.BookmarkViewHolder> {
+
+    private List<Bookmark> bookmarks;
+    private OnBookmarkClickListener listener;
+
+    public BookmarkAdapter(List<Bookmark> bookmarks, OnBookmarkClickListener listener) {
+        this.bookmarks = bookmarks;
+        this.listener = listener;
+    }
+
+    @NonNull
+    @Override
+    public BookmarkViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.fragment_bookmark, parent, false);
+        return new BookmarkViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull BookmarkViewHolder holder, int position) {
+        final Bookmark bookmark = bookmarks.get(position);
+
+        holder.titleTextView.setText(bookmark.getTitle());
+
+        holder.itemView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                // ブックマークがクリックされたときの処理
+                listener.onBookmarkClick(bookmark);
+            }
+        });
+    }
+
+    @Override
+    public int getItemCount() {
+        return bookmarks.size();
+    }
+
+    static class BookmarkViewHolder extends RecyclerView.ViewHolder {
+        TextView titleTextView;
+
+        public BookmarkViewHolder(@NonNull View itemView) {
+            super(itemView);
+            titleTextView = itemView.findViewById(R.id.titleTextView);
+        }
+    }
+}

component/viewer/src/main/java/one/nem/lacerta/component/viewer/BookMark/BookmarkRepository.java

@@ -0,0 +1,21 @@
+package one.nem.lacerta.component.viewer.BookMark;
+
+// BookmarkRepository.java
+import java.util.ArrayList;
+import java.util.List;
+
+public class BookmarkRepository {
+    private List<Bookmark> bookmarks = new ArrayList<>();
+
+    public List<Bookmark> getAllBookmarks() {
+        return bookmarks;
+    }
+
+    public void addBookmark(Bookmark bookmark) {
+        bookmarks.add(bookmark);
+    }
+
+    public void removeBookmark(Bookmark bookmark) {
+        bookmarks.remove(bookmark);
+    }
+}

component/viewer/src/main/java/one/nem/lacerta/component/viewer/BookMark/OnBookmarkClickListener.java

@@ -0,0 +1,10 @@
+package one.nem.lacerta.component.viewer.BookMark;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.os.Bundle;
+
+// OnBookmarkClickListener.java
+public interface OnBookmarkClickListener {
+    void onBookmarkClick(Bookmark selectedBookmark);
+}

component/viewer/src/main/java/one/nem/lacerta/component/viewer/ComponentViewerTopFragment.java

@@ -1,178 +0,0 @@
-package one.nem.lacerta.component.viewer;
-
-import android.app.AlertDialog;
-import android.graphics.Bitmap;
-import android.os.Bundle;
-
-import androidx.appcompat.widget.Toolbar;
-import androidx.fragment.app.Fragment;
-import androidx.navigation.Navigation;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
-
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.Toast;
-
-import java.util.ArrayList;
-import java.util.concurrent.CompletableFuture;
-
-import javax.inject.Inject;
-
-import dagger.hilt.android.AndroidEntryPoint;
-import one.nem.lacerta.data.Document;
-import one.nem.lacerta.model.document.DocumentDetail;
-import one.nem.lacerta.model.document.page.Page;
-import one.nem.lacerta.utils.FeatureSwitch;
-import one.nem.lacerta.utils.LacertaLogger;
-
-/**
- * A simple {@link Fragment} subclass.
- * Use the {@link ComponentViewerTopFragment#newInstance} factory method to
- * create an instance of this fragment.
- */
-@AndroidEntryPoint
-public class ComponentViewerTopFragment extends Fragment {
-
-    @Inject
-    Document document;
-
-    @Inject
-    LacertaLogger logger;
-
-    private static final String TAG = "ComponentViewerTopFragment";
-
-    private String documentId;
-    private String documentName;
-
-    public ComponentViewerTopFragment() {
-        // Required empty public constructor
-    }
-
-    public static ComponentViewerTopFragment newInstance(String documentId, String documentName) {
-        ComponentViewerTopFragment fragment = new ComponentViewerTopFragment();
-        Bundle args = new Bundle();
-        args.putString("documentId", documentId);
-        args.putString("documentName", documentName);
-        fragment.setArguments(args);
-        return fragment;
-    }
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        if (getArguments() != null) {
-            documentId = getArguments().getString("documentId");
-            documentName = getArguments().getString("documentName");
-        }
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container,
-                             Bundle savedInstanceState) {
-        // Inflate the layout for this fragment
-        View view = inflater.inflate(R.layout.fragment_component_viewer_top, container, false);
-
-        // Toolbar
-        Toolbar toolbar = view.findViewById(R.id.toolbar);
-        toolbarSetup(toolbar, true, this.documentName == null ? "Document" : this.documentName);
-
-        RecyclerView recyclerView = view.findViewById(R.id.body_recycler_view);
-        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
-        ViewerBodyAdapter viewerBodyAdapter = new ViewerBodyAdapter(fileName -> {
-            Toast.makeText(getContext(), fileName, Toast.LENGTH_SHORT).show();
-        });
-        recyclerView.setAdapter(viewerBodyAdapter);
-
-        if (FeatureSwitch.Viewer.showProgressBarWhenLoading) view.findViewById(R.id.loading_progress_bar).setVisibility(View.VISIBLE);
-        document.getDocument(documentId).thenAccept(documentDetail -> {
-            ArrayList<Page> pages = documentDetail.getPages();
-            logger.debug(TAG, "pages.size(): " + pages.size());
-            viewerBodyAdapter.setPages(pages);
-            getActivity().runOnUiThread(() -> {
-                viewerBodyAdapter.notifyItemRangeChanged(0, pages.size());
-                if (FeatureSwitch.Viewer.showProgressBarWhenLoading) view.findViewById(R.id.loading_progress_bar).setVisibility(View.GONE);
-            });
-        });
-
-        return view;
-    }
-
-    /**
-     * ToolbarをInitする
-     *
-     * @param toolbar Toolbar
-     * @param showBackButton 戻るボタンを表示するか
-     * @param title タイトル
-     */
-    private void toolbarSetup(Toolbar toolbar, boolean showBackButton, String title) {
-        getActivity().runOnUiThread(() -> {
-            if (showBackButton) {
-                toolbar.setNavigationIcon(one.nem.lacerta.shared.ui.R.drawable.arrow_back_24px);
-                toolbar.setNavigationOnClickListener(v -> {
-                    // Stop Activity
-                    getActivity().finish();
-                });
-            } else {
-                toolbar.setNavigationIcon(null);
-            }
-            toolbar.setTitle(title);
-            toolbar.inflateMenu(R.menu.viewer_menu);
-            toolbar.setOnMenuItemClickListener(item -> {
-                if (item.getItemId() == R.id.action_open_vcs_rev_list) {
-                    // Open vcs rev list
-                    getParentFragmentManager().beginTransaction()
-                            .replace(R.id.nav_host_fragment, ViewerVcsRevListFragment.newInstance(documentId))
-                            .commit();
-                    return true;
-                } else if (item.getItemId() == R.id.action_rename) {
-                    // TODO-rca: デザインをMaterial Design 3に合わせたカスタムダイアログにする
-                    AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
-                    builder.setTitle("ファイル名の変更");
-                    builder.setMessage("ファイル名を入力してください");
-                    final android.widget.EditText input = new android.widget.EditText(getContext());
-                    input.setText(documentName);
-                    builder.setView(input);
-                    builder.setPositiveButton("作成", (dialog, which) -> {
-                        document.renameDocument(documentId, input.getText().toString()).thenAccept(aVoid -> {
-                            getActivity().runOnUiThread(() -> {
-                                toolbar.setTitle(input.getText().toString());
-                                documentName = input.getText().toString();
-                            });
-                        });
-                    });
-                    builder.setNegativeButton("キャンセル", (dialog, which) -> {
-                        dialog.cancel();
-                    });
-                    builder.show();
-
-                    return true;
-                } else if (item.getItemId() == R.id.action_delete) {
-                    // TODO-rca: デザインをMaterial Design 3に合わせたカスタムダイアログにする
-                    AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
-                    builder.setTitle("ファイルの削除");
-                    builder.setMessage("ファイルを削除しますか？");
-                    builder.setPositiveButton("削除", (dialog, which) -> {
-                        document.deleteDocument(documentId).thenAccept(aVoid -> {
-                            getActivity().runOnUiThread(() -> {
-                                // Stop Activity
-                                getActivity().finish();
-                            });
-                        });
-                    });
-                    builder.setNegativeButton("キャンセル", (dialog, which) -> {
-                        dialog.cancel();
-                    });
-                    builder.show();
-                    return true;
-                } else if (item.getItemId() == R.id.action_move) {
-                    Toast.makeText(getContext(), "Work in progress", Toast.LENGTH_SHORT).show();
-                    return true;
-                } else {
-                    return false;
-                }
-            });
-        });
-    }
-}

component/viewer/src/main/java/one/nem/lacerta/component/viewer/RevAdapter.java

@@ -12,6 +12,7 @@ import java.text.SimpleDateFormat;
 import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 
+import one.nem.lacerta.component.viewer.model.RevSelectListener;
 import one.nem.lacerta.model.VcsRevModel;
 import one.nem.lacerta.utils.FeatureSwitch;
 
@@ -19,11 +20,14 @@ public class RevAdapter extends RecyclerView.Adapter<RevAdapter.RevViewHolder>{
 
     private ArrayList<VcsRevModel> revModels;
 
+    private RevSelectListener revSelectListener;
+
     public RevAdapter(ArrayList<VcsRevModel> revModels) {
         this.revModels = revModels;
     }
 
-    public RevAdapter() {
+    public RevAdapter(RevSelectListener revSelectListener) {
+        this.revSelectListener = revSelectListener;
     }
 
     public void setRevModels(ArrayList<VcsRevModel> revModels) {
@@ -52,6 +56,13 @@ public class RevAdapter extends RecyclerView.Adapter<RevAdapter.RevViewHolder>{
         }
         holder.revId.setText("RevID: " + revModel.getId());
 
+        holder.itemView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                revSelectListener.onRevSelect(revModel.getId());
+            }
+        });
+
     }
 
     @Override

component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerBodyFragment.java

@@ -0,0 +1,123 @@
+package one.nem.lacerta.component.viewer;
+
+import android.os.Bundle;
+
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Toast;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.AndroidEntryPoint;
+import one.nem.lacerta.data.Document;
+import one.nem.lacerta.data.LacertaLibrary;
+import one.nem.lacerta.utils.LacertaLogger;
+import one.nem.lacerta.vcs.LacertaVcs;
+import one.nem.lacerta.vcs.factory.LacertaVcsFactory;
+
+/**
+ * A simple {@link Fragment} subclass.
+ * Use the {@link ViewerBodyFragment#newInstance} factory method to
+ * create an instance of this fragment.
+ */
+@AndroidEntryPoint
+public class ViewerBodyFragment extends Fragment {
+
+    @Inject
+    Document document;
+
+    @Inject
+    LacertaLibrary lacertaLibrary;
+
+    @Inject
+    LacertaLogger logger;
+
+    @Inject
+    LacertaVcsFactory lacertaVcsFactory;
+
+    // Variables
+    private String documentId;
+    private String documentName;
+    private String revisionId;
+
+    public ViewerBodyFragment() {
+        // Required empty public constructor
+    }
+
+    public static ViewerBodyFragment newInstance(String documentId, String documentName) {
+        ViewerBodyFragment fragment = new ViewerBodyFragment();
+        Bundle args = new Bundle();
+        args.putString("documentId", documentId);
+        args.putString("documentName", documentName);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    public static ViewerBodyFragment newInstance(String documentId, String documentName, String revisionId) {
+        ViewerBodyFragment fragment = new ViewerBodyFragment();
+        Bundle args = new Bundle();
+        args.putString("documentId", documentId);
+        args.putString("documentName", documentName);
+        args.putString("revisionId", revisionId);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (getArguments() != null) {
+            documentId = getArguments().getString("documentId");
+            documentName = getArguments().getString("documentName");
+            revisionId = getArguments().getString("revisionId");
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_viewer_body, container, false);
+    }
+
+    @Override
+    public void onViewCreated(View view, Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        logger.debug("ViewerBodyFragment", "ViewerBodyFragment.onViewCreated");
+
+        RecyclerView recyclerView = view.findViewById(R.id.recycler_view);
+        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
+
+        ViewerBodyAdapter viewerBodyAdapter = new ViewerBodyAdapter(fileName -> {
+            Toast.makeText(getContext(), fileName, Toast.LENGTH_SHORT).show();
+            // TODO-rca: なにか処理をもたせる
+        });
+        recyclerView.setAdapter(viewerBodyAdapter);
+
+        loadDocument(viewerBodyAdapter, documentId, revisionId);
+    }
+
+    private void loadDocument(ViewerBodyAdapter adapter, String documentId, String revisionId) {
+        if (revisionId == null) { // load latest revision
+            document.getDocument(documentId).thenAccept(document -> {
+                getActivity().runOnUiThread(() -> {
+                    adapter.setPages(document.getPages());
+                    adapter.notifyDataSetChanged();
+                });
+            });
+        } else { // load specified revision
+            LacertaVcs vcs = lacertaVcsFactory.create(documentId);
+            document.getDocumentPageListByFileNameList(documentId, vcs.getDocumentPagePathListRev(revisionId).join()).thenAccept(documentPageList -> {
+                getActivity().runOnUiThread(() -> {
+                    adapter.setPages(documentPageList);
+                    adapter.notifyDataSetChanged();
+                });
+            });
+        }
+    }
+}

component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerContainerFragment.java

@@ -0,0 +1,243 @@
+package one.nem.lacerta.component.viewer;
+
+import android.os.Bundle;
+
+import androidx.appcompat.widget.Toolbar;
+import androidx.fragment.app.Fragment;
+import androidx.viewpager2.widget.ViewPager2;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageButton;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.google.android.material.dialog.MaterialAlertDialogBuilder;
+import com.google.android.material.tabs.TabLayout;
+import com.google.android.material.tabs.TabLayoutMediator;
+import com.google.android.material.textfield.TextInputEditText;
+import com.google.android.material.textfield.TextInputLayout;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.AndroidEntryPoint;
+import one.nem.lacerta.component.common.picker.LacertaFilePickerDialog;
+import one.nem.lacerta.data.Document;
+import one.nem.lacerta.data.LacertaLibrary;
+import one.nem.lacerta.model.document.page.Page;
+import one.nem.lacerta.model.pref.ToxiDocumentModel;
+import one.nem.lacerta.utils.LacertaLogger;
+
+/**
+ * A simple {@link Fragment} subclass.
+ * Use the {@link ViewerContainerFragment#newInstance} factory method to
+ * create an instance of this fragment.
+ */
+@AndroidEntryPoint
+public class ViewerContainerFragment extends Fragment {
+
+    // Inject
+
+    @Inject
+    LacertaLogger logger;
+
+    @Inject
+    LacertaLibrary lacertaLibrary;
+
+    @Inject
+    Document document;
+
+    // Variables
+    private String documentId;
+    private String documentName;
+    private boolean hasCombined = false;
+
+    public ViewerContainerFragment() {
+        // Required empty public constructor
+    }
+
+    public static ViewerContainerFragment newInstance(String documentId, String documentName, boolean hasCombined) {
+        ViewerContainerFragment fragment = new ViewerContainerFragment();
+        Bundle args = new Bundle();
+        fragment.setArguments(args);
+        args.putString("documentId", documentId);
+        args.putString("documentName", documentName);
+        args.putBoolean("hasCombined", hasCombined);
+        return fragment;
+    }
+
+    public static ViewerContainerFragment newInstance(String documentId, String documentName) {
+        ViewerContainerFragment fragment = new ViewerContainerFragment();
+        Bundle args = new Bundle();
+        fragment.setArguments(args);
+        args.putString("documentId", documentId);
+        args.putString("documentName", documentName);
+        args.putBoolean("hasCombined", false);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (getArguments() != null){
+            documentId = getArguments().getString("documentId");
+            documentName = getArguments().getString("documentName");
+            hasCombined = getArguments().getBoolean("hasCombined");
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_viewer_container, container, false);
+    }
+
+    @Override
+    public void onViewCreated(View view, Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        // Init view pager
+        ViewPager2 viewPager = view.findViewById(R.id.view_pager);
+
+        // Init view pager adapter
+        ViewerViewPagerAdapter viewerViewPagerAdapter = new ViewerViewPagerAdapter(requireActivity());
+        viewPager.setAdapter(viewerViewPagerAdapter);
+
+        // Init tab layout
+        TabLayout tabLayout = view.findViewById(R.id.tab_layout);
+
+        // Init toolbar
+        Toolbar toolbar = view.findViewById(R.id.toolbar);
+        initToolbar(toolbar, true, documentName);
+
+        if (this.hasCombined) {
+            logger.debug("ViewerContainerFragment", "hasCombined: " + hasCombined);
+            lacertaLibrary.getCombinedDocumentToxiList(documentId).thenAccept(combinedDocumentToxiList -> {
+                logger.debug("ViewerContainerFragment", "combinedDocumentToxiList: " + combinedDocumentToxiList.size());
+                for (ToxiDocumentModel toxiDocumentModel : combinedDocumentToxiList) {
+                    logger.debug("ViewerContainerFragment", "titleCache: " + toxiDocumentModel.getTitleCache());
+                    viewerViewPagerAdapter
+                            .addFragment(ViewerBodyFragment.newInstance(toxiDocumentModel.getChildDocumentId(), toxiDocumentModel.getTitleCache()),
+                                    toxiDocumentModel.getTitleCache());
+                }
+                viewerViewPagerAdapter.notifyItemRangeChanged(0, combinedDocumentToxiList.size());
+            });
+        } else {
+            logger.debug("ViewerContainerFragment", "hasCombined: " + hasCombined);
+            tabLayout.setVisibility(View.GONE);
+            viewerViewPagerAdapter.addFragment(ViewerBodyFragment.newInstance(documentId, documentName), documentName);
+            viewerViewPagerAdapter.notifyItemRangeChanged(0, 1);
+        }
+
+        // Attach tab layout to view pager
+        new TabLayoutMediator(tabLayout, viewPager, (tab, position) -> {
+            View customView = LayoutInflater.from(getContext()).inflate(R.layout.viewer_custom_tab, null);
+
+            TextView textView = customView.findViewById(R.id.tab_title);
+            textView.setText(viewerViewPagerAdapter.getTabTitle(position));
+
+            ImageButton imageButton = customView.findViewById(R.id.tab_modify);
+            imageButton.setOnClickListener(v -> {
+                Toast.makeText(getContext(), "Working!, Index:" + position, Toast.LENGTH_SHORT).show();
+            });
+
+            tab.setCustomView(customView);
+        }).attach();
+    }
+
+    /**
+     * Toolbarをinitする
+     *
+     * @param toolbar Toolbar
+     * @param showCloseButton Closeボタンを表示するかどうか
+     * @param title タイトル
+     */
+    private void initToolbar(Toolbar toolbar, boolean showCloseButton, String title) {
+        getActivity().runOnUiThread(() -> {
+            // Close button
+            if (showCloseButton) {
+                toolbar.setNavigationIcon(one.nem.lacerta.shared.ui.R.drawable.close_24px);
+                toolbar.setNavigationOnClickListener(v -> {
+                    getActivity().finish();
+                });
+            } else {
+                toolbar.setNavigationIcon(null);
+            }
+
+            // Title
+            toolbar.setTitle(title);
+
+            // Menu
+            toolbar.inflateMenu(R.menu.viewer_menu);
+            toolbar.setOnMenuItemClickListener(item -> {
+                if (item.getItemId() == R.id.action_open_vcs_rev_list) {
+                    Toast.makeText(getContext(), "Work in progress", Toast.LENGTH_SHORT).show();
+                    return true;
+                } else if (item.getItemId() == R.id.action_rename) {
+                    renameDocument();
+                    return true;
+                } else if (item.getItemId() == R.id.action_delete) {
+                    Toast.makeText(getContext(), "Work in progress", Toast.LENGTH_SHORT).show();
+                    return true;
+                } else if (item.getItemId() == R.id.action_move) {
+                    Toast.makeText(getContext(), "Work in progress", Toast.LENGTH_SHORT).show();
+                    return true;
+                } else if (item.getItemId() == R.id.action_combine) {
+                    combineDocument();
+                    return true;
+                } else {
+                    return false;
+                }
+            });
+        });
+    }
+
+    private void combineDocument() {
+        LacertaFilePickerDialog lacertaFilePickerDialog = new LacertaFilePickerDialog();
+        lacertaFilePickerDialog.setListener((fileName, selectedId) -> {
+            lacertaLibrary.combineDocument(documentId, selectedId).thenAccept(aVoid -> {
+                getActivity().runOnUiThread(() -> {
+                    Toast.makeText(getContext(), "結合しました", Toast.LENGTH_SHORT).show();
+                    getActivity().finish(); // TODO-rca: 終了させずにUIを更新したい
+                });
+            });
+        });
+        lacertaFilePickerDialog
+                .setTitle("ファイルの結合")
+                .setMessage("結合するファイルを選択してください")
+                .setNegativeButtonText("キャンセル")
+                .show(getChildFragmentManager(), "LacertaFilePickerDialog");
+    }
+
+    /**
+     * ドキュメント名を変更する
+     */
+    private void renameDocument() {
+        MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(getContext());
+        builder.setTitle("ファイル名の変更");
+        builder.setMessage("ファイル名を入力してください");
+
+        View view = LayoutInflater.from(getContext()).inflate(one.nem.lacerta.shared.ui.R.layout.lacerta_dialog_edit_text_layout, null);
+        TextInputEditText textInputEditText = view.findViewById(one.nem.lacerta.shared.ui.R.id.custom_edit_text);
+        TextInputLayout textInputLayout = view.findViewById(one.nem.lacerta.shared.ui.R.id.custom_text_input_layout);
+        textInputEditText.setText(documentName);
+        textInputLayout.setHint("ファイル名");
+        builder.setView(view);
+
+        builder.setPositiveButton("変更", (dialog, which) -> {
+            document.renameDocument(documentId, textInputEditText.getText().toString()).thenAccept(aVoid -> {
+                getActivity().runOnUiThread(() -> {
+                    this.documentName = textInputEditText.getText().toString();
+                    // TODO-rca: Toolbarのタイトルも変更する
+                });
+            });
+        });
+        builder.setNegativeButton("キャンセル", (dialog, which) -> {
+            dialog.cancel();
+        });
+
+        builder.show();
+    }
+}

component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerListFragment.java

@@ -0,0 +1,282 @@
+package one.nem.lacerta.component.viewer;
+
+import android.os.Bundle;
+
+import androidx.appcompat.widget.Toolbar;
+import androidx.fragment.app.Fragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Toast;
+
+import com.google.android.material.dialog.MaterialAlertDialogBuilder;
+
+import java.util.ArrayList;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.AndroidEntryPoint;
+import one.nem.lacerta.component.common.LacertaSelectDirDialog;
+import one.nem.lacerta.component.common.LacertaSelectDirDialogListener;
+import one.nem.lacerta.component.common.LacertaSelectRevDialog;
+import one.nem.lacerta.component.common.LacertaSelectRevDialogListener;
+import one.nem.lacerta.component.common.picker.LacertaDirPickerDialog;
+import one.nem.lacerta.component.common.picker.LacertaFilePickerAdapter;
+import one.nem.lacerta.component.common.picker.LacertaFilePickerDialog;
+import one.nem.lacerta.data.Document;
+import one.nem.lacerta.data.LacertaLibrary;
+import one.nem.lacerta.model.ListItemType;
+import one.nem.lacerta.model.document.page.Page;
+import one.nem.lacerta.utils.FeatureSwitch;
+import one.nem.lacerta.utils.LacertaLogger;
+import one.nem.lacerta.vcs.LacertaVcs;
+import one.nem.lacerta.vcs.factory.LacertaVcsFactory;
+
+/**
+ * A simple {@link Fragment} subclass.
+ * Use the {@link ViewerListFragment#newInstance} factory method to
+ * create an instance of this fragment.
+ */
+@AndroidEntryPoint
+public class ViewerListFragment extends Fragment {
+
+    @Inject
+    Document document;
+
+    @Inject
+    LacertaLibrary lacertaLibrary;
+
+    @Inject
+    LacertaLogger logger;
+
+    @Inject
+    LacertaVcsFactory lacertaVcsFactory;
+
+    private static final String TAG = "ComponentViewerTopFragment";
+
+    private String documentId;
+    private String documentName;
+    private String revisionId;
+
+    public ViewerListFragment() {
+        // Required empty public constructor
+    }
+
+    public static ViewerListFragment newInstance(String documentId, String documentName) {
+        ViewerListFragment fragment = new ViewerListFragment();
+        Bundle args = new Bundle();
+        args.putString("documentId", documentId);
+        args.putString("documentName", documentName);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    public static ViewerListFragment newInstance(String documentId, String documentName, String revisionId) {
+        ViewerListFragment fragment = new ViewerListFragment();
+        Bundle args = new Bundle();
+        args.putString("documentId", documentId);
+        args.putString("documentName", documentName);
+        args.putString("revisionId", revisionId);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (getArguments() != null) {
+            documentId = getArguments().getString("documentId");
+            documentName = getArguments().getString("documentName");
+            revisionId = getArguments().getString("revisionId");
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        View view = inflater.inflate(R.layout.fragment_component_viewer_top, container, false);
+
+        // Toolbar
+        Toolbar toolbar = view.findViewById(R.id.toolbar);
+        toolbarSetup(toolbar, true, this.documentName == null ? "Document" : this.documentName, null);
+
+        RecyclerView recyclerView = view.findViewById(R.id.body_recycler_view);
+        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
+        ViewerBodyAdapter viewerBodyAdapter = new ViewerBodyAdapter(fileName -> {
+            Toast.makeText(getContext(), fileName, Toast.LENGTH_SHORT).show();
+        });
+        recyclerView.setAdapter(viewerBodyAdapter);
+
+        if (revisionId == null) {
+            logger.debug(TAG, "revisionId is empty, loading latest revision");
+            if (FeatureSwitch.Viewer.showProgressBarWhenLoading) view.findViewById(R.id.loading_progress_bar).setVisibility(View.VISIBLE);
+            document.getDocument(documentId).thenAccept(documentDetail -> {
+                ArrayList<Page> pages = documentDetail.getPages();
+                logger.debug(TAG, "pages.size(): " + pages.size());
+                viewerBodyAdapter.setPages(pages);
+                getActivity().runOnUiThread(() -> {
+                    viewerBodyAdapter.notifyItemRangeChanged(0, pages.size());
+                    if (FeatureSwitch.Viewer.showProgressBarWhenLoading) view.findViewById(R.id.loading_progress_bar).setVisibility(View.GONE);
+                });
+            }).thenCompose(aVoid -> lacertaLibrary.getPublicPath(documentId, ListItemType.ITEM_TYPE_DOCUMENT)).thenAccept(publicPath -> {
+                updateToolbarSubtitle(toolbar, "/" + publicPath.parent().getStringPath());
+            });
+        } else {
+            logger.debug(TAG, "revisionId: " + revisionId);
+            if (FeatureSwitch.Viewer.showProgressBarWhenLoading) view.findViewById(R.id.loading_progress_bar).setVisibility(View.VISIBLE);
+            LacertaVcs lacertaVcs = lacertaVcsFactory.create(documentId);
+            lacertaVcs.getDocumentPagePathListRev(revisionId).thenAccept(documentPathList -> {
+                logger.debug(TAG, "documentPathList.size(): " + documentPathList.size());
+                document.getDocumentPageListByFileNameList(documentId, documentPathList).thenAccept(pages -> {
+                    logger.debug(TAG, "pages.size(): " + pages.size());
+                    viewerBodyAdapter.setPages(pages);
+                    getActivity().runOnUiThread(() -> {
+                        viewerBodyAdapter.notifyItemRangeChanged(0, pages.size());
+                        if (FeatureSwitch.Viewer.showProgressBarWhenLoading) view.findViewById(R.id.loading_progress_bar).setVisibility(View.GONE);
+                    });
+                });
+            }).thenCompose(aVoid -> lacertaLibrary.getPublicPath(documentId, ListItemType.ITEM_TYPE_DOCUMENT)).thenAccept(publicPath -> {
+                updateToolbarSubtitle(toolbar, "/" + publicPath.parent().getStringPath()); // TODO-rca: リビジョンの場合はリビジョン名を表示する?
+            });
+        }
+
+        return view;
+    }
+
+    /**
+     * Toolbarのサブタイトルを更新
+     * @param subtitle サブタイトル
+     */
+    private void updateToolbarSubtitle(Toolbar toolbar, String subtitle) {
+        getActivity().runOnUiThread(() -> {
+            toolbar.setSubtitle(subtitle);
+        });
+    }
+
+    /**
+     * ToolbarをInitする
+     *
+     * @param toolbar Toolbar
+     * @param showCloseButton 戻るボタンを表示するか
+     * @param title タイトル
+     */
+    private void toolbarSetup(Toolbar toolbar, boolean showCloseButton, String title, String Subtitle) {
+        getActivity().runOnUiThread(() -> {
+            if (showCloseButton) {
+                toolbar.setNavigationIcon(one.nem.lacerta.shared.ui.R.drawable.close_24px);
+                toolbar.setNavigationOnClickListener(v -> {
+                    // Stop Activity
+                    getActivity().finish();
+                });
+            } else {
+                toolbar.setNavigationIcon(null);
+            }
+            toolbar.setTitle(title);
+            if (Subtitle != null) toolbar.setSubtitle(Subtitle);
+            toolbar.inflateMenu(R.menu.viewer_menu);
+            toolbar.setOnMenuItemClickListener(item -> {
+                if (item.getItemId() == R.id.action_open_vcs_rev_list) {
+                    LacertaSelectRevDialog lacertaSelectRevDialog = new LacertaSelectRevDialog();
+                    lacertaSelectRevDialog.setDocumentId(this.documentId).setTitle("リビジョンの選択").setMessage("リビジョンを選択してください。").setNegativeButtonText("キャンセル");
+                    lacertaSelectRevDialog.setListener(new LacertaSelectRevDialogListener() {
+                        @Override
+                        public void onItemSelected(String revId) {
+                            getParentFragmentManager().beginTransaction()
+                                    .replace(R.id.nav_host_fragment, ViewerListFragment.newInstance(documentId, documentName, revisionId))
+                                    .commit();
+                        }
+
+                        @Override
+                        public void onDialogCanceled() {
+                            logger.debug(TAG, "Canceled");
+                        }
+                    });
+                    lacertaSelectRevDialog.show(getParentFragmentManager(), "select_rev_dialog");
+                    return true;
+                } else if (item.getItemId() == R.id.action_rename) {
+
+                    MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(requireContext());
+                    builder.setTitle("ファイル名の変更");
+
+                    View view = LayoutInflater.from(requireContext()).inflate(one.nem.lacerta.shared.ui.R.layout.lacerta_dialog_edit_text_layout, null);
+                    final com.google.android.material.textfield.TextInputEditText input = view.findViewById(one.nem.lacerta.shared.ui.R.id.custom_edit_text);
+                    final com.google.android.material.textfield.TextInputLayout inputLayout = view.findViewById(one.nem.lacerta.shared.ui.R.id.custom_text_input_layout);
+                    inputLayout.setHint("ファイル名");
+
+                    builder.setView(view);
+
+                    builder.setPositiveButton("変更", (dialog, which) -> {
+                        document.renameDocument(documentId, input.getText().toString()).thenAccept(aVoid -> {
+                            getActivity().runOnUiThread(() -> {
+                                toolbar.setTitle(input.getText().toString());
+                                documentName = input.getText().toString();
+                            });
+                        });
+                    });
+                    builder.setNegativeButton("キャンセル", (dialog, which) -> {
+                        dialog.cancel();
+                    });
+
+                    builder.show();
+                    return true;
+                } else if (item.getItemId() == R.id.action_delete) {
+                    // TODO-rca: デザインをMaterial Design 3に合わせたカスタムダイアログにする
+                    MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(requireContext());
+                    builder.setTitle("ファイルの削除");
+                    builder.setMessage("ファイルを削除しますか？");
+                    builder.setPositiveButton("削除", (dialog, which) -> {
+                        document.deleteDocument(documentId).thenAccept(aVoid -> {
+                            getActivity().runOnUiThread(() -> {
+                                // Stop Activity
+                                getActivity().finish();
+                            });
+                        });
+                    });
+                    builder.setNegativeButton("キャンセル", (dialog, which) -> {
+                        dialog.cancel();
+                    });
+                    builder.show();
+                    return true;
+                } else if (item.getItemId() == R.id.action_move) {
+                    LacertaDirPickerDialog lacertaDirPickerDialog = new LacertaDirPickerDialog();
+                    lacertaDirPickerDialog.setListener((name, dirId) -> {
+                        logger.debug(TAG, "Selected dir: " + name + ", " + dirId);
+                        document.moveDocument(documentId, dirId).thenAccept(aVoid -> {
+                            getActivity().runOnUiThread(() -> {
+                                // Stop Activity
+                                getActivity().finish(); // TODO-rca: ファイル移動後に終了するべきかは検討
+                            });
+                        });
+                    });
+                    lacertaDirPickerDialog.setTitle("ファイルの移動")
+                            .setMessage("ファイルを移動するフォルダを選択してください。")
+                            .setPositiveButtonText("移動")
+                            .setNegativeButtonText("キャンセル");
+                    lacertaDirPickerDialog.show(getParentFragmentManager(), "select_dir_dialog");
+                    return true;
+                } else if(item.getItemId() == R.id.action_combine) {
+                    LacertaFilePickerDialog lacertaFilePickerDialog = new LacertaFilePickerDialog();
+                    lacertaFilePickerDialog.setListener((name, fileId) -> {
+                        lacertaLibrary.combineDocument(documentId, fileId).thenAccept(aVoid -> {
+                            getActivity().runOnUiThread(() -> {
+                                // Stop Activity
+                                getActivity().finish(); // TODO-rca: 終了せずにUIを更新したい
+                            });
+                        });
+                    });
+                    lacertaFilePickerDialog.setTitle("ファイルの結合")
+                            .setMessage("結合するファイルを選択してください。")
+                            .setNegativeButtonText("キャンセル");
+                    lacertaFilePickerDialog.show(getParentFragmentManager(), "select_file_dialog");
+                    return true;
+                } else {
+                    return false;
+                }
+            });
+        });
+    }
+}

component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerMainActivity.java

@@ -2,20 +2,14 @@ package one.nem.lacerta.component.viewer;
 
 import android.content.Intent;
 import android.os.Bundle;
-import android.util.Log;
 import android.widget.Toast;
 
 import androidx.activity.EdgeToEdge;
+import androidx.activity.OnBackPressedCallback;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.graphics.Insets;
 import androidx.core.view.ViewCompat;
 import androidx.core.view.WindowInsetsCompat;
-import androidx.fragment.app.FragmentManager;
-import androidx.navigation.NavController;
-import androidx.navigation.fragment.NavHostFragment;
-import androidx.navigation.ui.NavigationUI;
-
-import com.google.android.material.bottomnavigation.BottomNavigationView;
 
 import javax.inject.Inject;
 
@@ -36,6 +30,7 @@ public class ViewerMainActivity extends AppCompatActivity {
     private static final String TAG = "ViewerMainActivity";
     String documentId;
     String documentName;
+    boolean hasCombined = false;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -48,10 +43,14 @@ public class ViewerMainActivity extends AppCompatActivity {
             return insets;
         });
 
+//        // Transition
+//        overridePendingTransition(one.nem.lacerta.shared.ui.R.anim.nav_up_enter_anim, one.nem.lacerta.shared.ui.R.anim.nav_up_exit_anim);
+
         Intent intent = getIntent();
         try {
             documentId = intent.getStringExtra("documentId");
             documentName = intent.getStringExtra("documentName");
+            hasCombined = intent.getBooleanExtra("hasCombined", false);
         }
         catch (Exception e) {
             logger.error(TAG, "Failed to get documentId from intent");
@@ -61,8 +60,18 @@ public class ViewerMainActivity extends AppCompatActivity {
         }
 
         // Navigation
-        getSupportFragmentManager().beginTransaction()
-                .replace(R.id.nav_host_fragment, ComponentViewerTopFragment.newInstance(documentId, documentName))
-                .commit();
+//        getSupportFragmentManager().beginTransaction()
+//                .replace(R.id.nav_host_fragment, ViewerListFragment.newInstance(documentId, documentName))
+//                .commit();
+        if (hasCombined) {
+            getSupportFragmentManager().beginTransaction()
+                    .replace(R.id.nav_host_fragment, ViewerContainerFragment.newInstance(documentId, documentName, hasCombined))
+                    .commit();
+        } else {
+            getSupportFragmentManager().beginTransaction()
+                    .replace(R.id.nav_host_fragment, ViewerContainerFragment.newInstance(documentId, documentName))
+                    .commit();
+        }
     }
+
 }

component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerVcsRevListFragment.java

@@ -34,15 +34,17 @@ public class ViewerVcsRevListFragment extends Fragment {
     LacertaVcs lacertaVcs;
 
     private String documentId;
+    private String documentName;
 
     public ViewerVcsRevListFragment() {
         // Required empty public constructor
     }
 
-    public static ViewerVcsRevListFragment newInstance(String documentId) {
+    public static ViewerVcsRevListFragment newInstance(String documentId, String documentName) {
         ViewerVcsRevListFragment fragment = new ViewerVcsRevListFragment();
         Bundle args = new Bundle();
         args.putString("documentId", documentId);
+        args.putString("documentName", documentName);
         fragment.setArguments(args);
         return fragment;
     }
@@ -66,17 +68,22 @@ public class ViewerVcsRevListFragment extends Fragment {
         // Init arg
         if (getArguments() != null) {
             this.documentId = getArguments().getString("documentId");
-            logger.debug("ViewerVcsRevListFragment", "documentId: " + documentId);
+            logger.debug("ViewerVcsRevListFragment", "documentId: " + this.documentId);
         }
 
         // Init vcs
-        lacertaVcs = lacertaVcsFactory.create(documentId);
+        lacertaVcs = lacertaVcsFactory.create(this.documentId);
 
         // Init view
         RecyclerView recyclerView = view.findViewById(R.id.rev_list);
 
         // Init adapter
-        RevAdapter revAdapter = new RevAdapter();
+        RevAdapter revAdapter = new RevAdapter(revisionId -> {
+            logger.debug("ViewerVcsRevListFragment", "Selected revisionId: " + revisionId);
+            getParentFragmentManager().beginTransaction()
+                    .replace(R.id.nav_host_fragment, ViewerListFragment.newInstance(this.documentId, this.documentName, revisionId))
+                    .commit();
+        });
 
         // Set adapter
         recyclerView.setAdapter(revAdapter);

component/viewer/src/main/java/one/nem/lacerta/component/viewer/ViewerViewPagerAdapter.java

@@ -0,0 +1,44 @@
+package one.nem.lacerta.component.viewer;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentActivity;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentPagerAdapter;
+import androidx.viewpager2.adapter.FragmentStateAdapter;
+
+import java.util.ArrayList;
+
+public class ViewerViewPagerAdapter extends FragmentStateAdapter {
+
+    // Variables
+    private ArrayList<Fragment> fragmentArrayList = new ArrayList<>();
+    private ArrayList<String> fragmentTitleList = new ArrayList<>();
+
+    // Setter
+    public void addFragment(Fragment fragment, String title){
+        fragmentArrayList.add(fragment);
+        fragmentTitleList.add(title);
+    }
+
+    public ViewerViewPagerAdapter(@NonNull FragmentActivity fragmentActivity) {
+        super(fragmentActivity);
+    }
+
+    @NonNull
+    @Override
+    public Fragment createFragment(int position) {
+        return fragmentArrayList.get(position);
+    }
+
+    @Override
+    public int getItemCount() {
+        return fragmentArrayList == null ? 0 : fragmentArrayList.size();
+    }
+
+    @Nullable
+    public CharSequence getTabTitle(int position) {
+        return fragmentTitleList.get(position);
+    }
+}

component/viewer/src/main/java/one/nem/lacerta/component/viewer/model/RevSelectListener.java

@@ -0,0 +1,5 @@
+package one.nem.lacerta.component.viewer.model;
+
+public interface RevSelectListener {
+    void onRevSelect(String revisionId);
+}

component/viewer/src/main/res/layout/activity_viewer_main.xml

@@ -9,7 +9,7 @@
 
     <androidx.fragment.app.FragmentContainerView
         android:id="@+id/nav_host_fragment"
-        android:name="one.nem.lacerta.component.viewer.ComponentViewerTopFragment"
+        android:name="one.nem.lacerta.component.viewer.ViewerListFragment"
         android:layout_width="0dp"
         android:layout_height="0dp"
         app:defaultNavHost="true"

component/viewer/src/main/res/layout/fragment_bookmark.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+</androidx.constraintlayout.widget.ConstraintLayout>

component/viewer/src/main/res/layout/fragment_bookmark_list.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/colorSurface">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recycler_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
+    <!-- item_bookmark.xml -->
+    <TextView
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/titleTextView"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:padding="16dp"/>
+
+</FrameLayout>

component/viewer/src/main/res/layout/fragment_component_viewer_top.xml

@@ -13,7 +13,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content">
 
-            <com.google.android.material.appbar.CollapsingToolbarLayout
+            <com.google.android.material.appbar.SubtitleCollapsingToolbarLayout
                 android:id="@+id/collapsing_toolbar"
                 app:contentScrim="@color/colorSecondaryContainer"
                 android:background="@color/colorSurface"
@@ -35,7 +35,7 @@
                     app:layout_collapseMode="pin"
                     app:title="Title" />
 
-            </com.google.android.material.appbar.CollapsingToolbarLayout>
+            </com.google.android.material.appbar.SubtitleCollapsingToolbarLayout>
 
 
             <ProgressBar

component/viewer/src/main/res/layout/fragment_viewer_body.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    tools:context=".ViewerBodyFragment">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recycler_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
+</FrameLayout>

component/viewer/src/main/res/layout/fragment_viewer_container.xml

@@ -0,0 +1,66 @@
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/colorSurface">
+
+    <androidx.coordinatorlayout.widget.CoordinatorLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <com.google.android.material.appbar.AppBarLayout
+            android:id="@+id/app_bar_layout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+
+            <com.google.android.material.appbar.SubtitleCollapsingToolbarLayout
+                android:id="@+id/collapsing_toolbar"
+                app:contentScrim="@color/colorSecondaryContainer"
+                android:background="@color/colorSurface"
+                android:layout_width="match_parent"
+                android:layout_height="160dp"
+                android:fitsSystemWindows="true"
+                android:minHeight="?attr/actionBarSize"
+                app:collapsedTitleGravity="start|center_vertical"
+                app:expandedTitleGravity="start|bottom"
+                app:expandedTitleMarginBottom="16dp"
+                app:expandedTitleMarginStart="16dp"
+                app:expandedTitleTextAppearance="@style/TextAppearance.MaterialComponents.Headline4"
+                app:layout_scrollFlags="scroll|exitUntilCollapsed">
+
+                <androidx.appcompat.widget.Toolbar
+                    android:id="@+id/toolbar"
+                    android:layout_width="match_parent"
+                    android:layout_height="?attr/actionBarSize"
+                    app:layout_collapseMode="pin"
+                    app:title="Title" />
+
+            </com.google.android.material.appbar.SubtitleCollapsingToolbarLayout>
+
+            <com.google.android.material.tabs.TabLayout
+                android:id="@+id/tab_layout"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                app:tabMode="scrollable"
+                />
+
+            <ProgressBar
+                android:id="@+id/loading_progress_bar"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:layout_gravity="center"
+                android:indeterminate="true"
+                android:background="@color/colorSurface"
+                android:visibility="gone" />
+
+        </com.google.android.material.appbar.AppBarLayout>
+
+        <androidx.viewpager2.widget.ViewPager2
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:id="@+id/view_pager"
+            app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
+    </androidx.coordinatorlayout.widget.CoordinatorLayout>
+
+</FrameLayout>

component/viewer/src/main/res/layout/viewer_custom_tab.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="wrap_content"
+    android:layout_gravity="center_vertical"
+    android:layout_height="wrap_content"
+    android:layout_marginHorizontal="16dp">
+
+    <TextView
+        android:id="@+id/tab_title"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="TAB TITLE"
+        android:textSize="16sp"
+        android:layout_gravity="center"/>
+
+    <ImageButton
+        android:id="@+id/tab_modify"
+        android:layout_marginStart="8dp"
+        android:layout_width="wrap_content"
+        android:layout_height="16dp"
+        android:background="@android:color/transparent"
+        android:src="@drawable/more_vert_24px"
+        android:layout_gravity="center_vertical" />
+</LinearLayout>

component/viewer/src/main/res/menu/viewer_menu.xml

@@ -16,4 +16,8 @@
         android:id="@+id/action_move"
         android:title="移動" />
 
+    <item
+        android:id="@+id/action_combine"
+        android:title="結合" />
+
 </menu>

component/viewer/src/main/res/navigation/component_viewer_navigation.xml

@@ -3,11 +3,11 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/component_viewer_navigation"
-    app:startDestination="@id/componentViewerTopFragment">
+    app:startDestination="@id/viewerListFragment">
 
     <fragment
-        android:id="@+id/componentViewerTopFragment"
-        android:name="one.nem.lacerta.component.viewer.ComponentViewerTopFragment"
+        android:id="@+id/viewerListFragment"
+        android:name="one.nem.lacerta.component.viewer.ViewerListFragment"
         android:label="ComponentViewerTopFragment" >
         <action
             android:id="@+id/action_componentViewerTopFragment_to_viewerVcsRevListFragment"

data/src/main/java/one/nem/lacerta/data/Document.java

@@ -6,6 +6,7 @@ import java.util.concurrent.CompletableFuture;
 
 import one.nem.lacerta.model.document.DocumentMeta;
 import one.nem.lacerta.model.document.DocumentDetail;
+import one.nem.lacerta.model.document.page.Page;
 import one.nem.lacerta.model.document.path.DocumentPath;
 import one.nem.lacerta.model.document.tag.DocumentTag;
 
@@ -22,7 +23,11 @@ public interface Document {
 
     CompletableFuture<Void> deleteDocument(String documentId);
 
+    CompletableFuture<Void> moveDocument(String documentId, String parentId);
+
     CompletableFuture<Void> updateDocument(DocumentDetail detail);
 
     CompletableFuture<DocumentDetail> getDocument(String documentId);
+
+    CompletableFuture<ArrayList<Page>> getDocumentPageListByFileNameList(String documentId, ArrayList<String> fileNameList);
 }

data/src/main/java/one/nem/lacerta/data/LacertaLibrary.java

@@ -9,6 +9,8 @@ import one.nem.lacerta.model.ListItemType;
 import one.nem.lacerta.model.LibraryItemPage;
 import one.nem.lacerta.model.PublicPath;
 import one.nem.lacerta.model.document.DocumentDetail;
+import one.nem.lacerta.model.document.tag.DocumentTag;
+import one.nem.lacerta.model.pref.ToxiDocumentModel;
 
 public interface LacertaLibrary {
 
@@ -20,10 +22,40 @@ public interface LacertaLibrary {
     CompletableFuture<LibraryItemPage> getLibraryPage(String pageId, int limit);
     CompletableFuture<LibraryItemPage> getLibraryPage(String pageId, int limit, int offset);
 
+    // Get Folder List
+    CompletableFuture<LibraryItemPage> getFolderList(String parentId);
+
     // Create Folder
     CompletableFuture<String> createFolder(String parentId, String name);
 
     // Get Public Path
     CompletableFuture<PublicPath> getPublicPath(String itemId, ListItemType itemType);
 
+
+    // Tag
+    CompletableFuture<ArrayList<DocumentTag>> getTagList();
+
+    CompletableFuture<ArrayList<DocumentTag>> getAppliedTagList(String documentId);
+
+    CompletableFuture<Void> createTag(DocumentTag tag);
+
+    CompletableFuture<Void> updateTag(DocumentTag tag);
+
+    CompletableFuture<Void> deleteTag(String tagId);
+
+    CompletableFuture<Void> addTagToDocument(String documentId, String tagId);
+
+    CompletableFuture<Void> removeTagFromDocument(String documentId, String tagId);
+
+    // Combined Document
+
+    CompletableFuture<Void> combineDocument(String parentId, String childId);
+
+    CompletableFuture<Void> uncombineDocument(String parentId, String childId);
+
+//    CompletableFuture<Void> combineDocument(String parentId, ArrayList<String> childIdList);
+//
+//    CompletableFuture<Void> uncombineDocument(String parentId, ArrayList<String> childIdList);
+
+    CompletableFuture<ArrayList<ToxiDocumentModel>> getCombinedDocumentToxiList(String parentId);
 }

data/src/main/java/one/nem/lacerta/data/impl/DocumentImpl.java

@@ -78,11 +78,11 @@ public class DocumentImpl implements Document {
             documentEntity.id = meta.getId();
             documentEntity.title = meta.getTitle();
             documentEntity.author = meta.getAuthor();
-            documentEntity.defaultBranch = meta.getDefaultBranch();
             documentEntity.updatedAt = meta.getUpdatedAt();
             documentEntity.createdAt = meta.getCreatedAt();
             documentEntity.parentId = meta.getParentId();
-            documentEntity.tagIds = meta.getTagIds();
+            documentEntity.isCombineChild = meta.getIsCombineChild();
+            documentEntity.isCombineParent = meta.getIsCombineParent();
 
             database.documentDao().insert(documentEntity);
 
@@ -103,11 +103,11 @@ public class DocumentImpl implements Document {
         meta.setId(UUID.randomUUID().toString());
         meta.setTitle("New Document");
         meta.setAuthor("author");
-        meta.setDefaultBranch("master");
         meta.setUpdatedAt(new Date());
         meta.setCreatedAt(new Date());
         meta.setParentId(null);
-        meta.setTags(new ArrayList<>());
+        meta.setIsCombineChild(false);
+        meta.setIsCombineParent(false);
         return createDocument(meta);
     }
 
@@ -123,6 +123,19 @@ public class DocumentImpl implements Document {
         });
     }
 
+    @Override
+    public CompletableFuture<Void> moveDocument(String documentId, String parentId) {
+        return CompletableFuture.supplyAsync(() -> {
+            DocumentEntity documentEntity = database.documentDao().findById(documentId);
+            if (documentEntity == null) {
+                throw new IllegalArgumentException("documentId is not found");
+            }
+            documentEntity.parentId = parentId;
+            database.documentDao().update(documentEntity);
+            return null;
+        });
+    }
+
     @Override
     public CompletableFuture<Void> updateDocument(DocumentDetail detail) {
         return CompletableFuture.supplyAsync(() -> {
@@ -155,11 +168,9 @@ public class DocumentImpl implements Document {
             meta.setId(documentEntity.id);
             meta.setTitle(documentEntity.title);
             meta.setAuthor(documentEntity.author);
-            meta.setDefaultBranch(documentEntity.defaultBranch);
             meta.setUpdatedAt(documentEntity.updatedAt);
             meta.setCreatedAt(documentEntity.createdAt);
             meta.setParentId(documentEntity.parentId);
-            meta.setTags(new ArrayList<>()); // TODO-rca: タグを取得する
 
             DocumentDetail detail = new DocumentDetail();
 
@@ -173,6 +184,34 @@ public class DocumentImpl implements Document {
         });
     }
 
+    @Override
+    public CompletableFuture<ArrayList<Page>> getDocumentPageListByFileNameList(String documentId, ArrayList<String> fileNameList) {
+        return CompletableFuture.supplyAsync(() -> {
+            ArrayList<Page> pages = new ArrayList<>();
+            FileManager fileManager;
+            try {
+                fileManager = fileManagerFactory.create(deviceInfoUtils.getExternalStorageDirectory()).resolve(documentId).resolve("raw");
+            } catch (IOException e) {
+                logger.error(TAG, "FileManager resolve error");
+                logger.trace(TAG, e.getMessage());
+                logger.e_code("1210ae5b-dd2f-42ef-bc15-40b9a9bbdb16");
+                return null;
+            }
+
+            fileNameList.forEach(fileName -> {
+                try {
+                    pages.add(new Page(fileName, fileManager.loadBitmap(fileName)));
+                } catch (IOException e) {
+                    logger.error(TAG, "Bitmap decode error");
+                    logger.trace(TAG, e.getMessage());
+                    logger.e_code("6f9ba0dc-ac63-401c-8f50-a2bd9ff5cb91");
+                }
+            });
+
+            return pages;
+        });
+    }
+
     private CompletableFuture<ArrayList<XmlMetaPageModel>> getPagesByXmlMeta(String documentId) {
         return CompletableFuture.supplyAsync(() -> {
             FileManager fileManager = fileManagerFactory.create(deviceInfoUtils.getExternalStorageDirectory());

data/src/main/java/one/nem/lacerta/data/impl/LacertaLibraryImpl.java

@@ -1,12 +1,16 @@
 package one.nem.lacerta.data.impl;
 
+import android.nfc.Tag;
+
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.Date;
 import java.util.List;
+import java.util.Objects;
 import java.util.UUID;
 import java.util.concurrent.CompletableFuture;
 
@@ -18,10 +22,15 @@ import one.nem.lacerta.model.ListItem;
 import one.nem.lacerta.model.ListItemType;
 import one.nem.lacerta.model.PublicPath;
 import one.nem.lacerta.model.document.DocumentDetail;
+import one.nem.lacerta.model.document.tag.DocumentTag;
+import one.nem.lacerta.model.pref.ToxiDocumentModel;
 import one.nem.lacerta.source.database.LacertaDatabase;
 import one.nem.lacerta.source.database.common.DateTypeConverter;
 import one.nem.lacerta.source.database.entity.DocumentEntity;
 import one.nem.lacerta.source.database.entity.FolderEntity;
+import one.nem.lacerta.source.database.entity.TagEntity;
+import one.nem.lacerta.source.database.entity.ToxiDocumentEntity;
+import one.nem.lacerta.source.database.entity.ToxiDocumentTagEntity;
 import one.nem.lacerta.utils.FeatureSwitch;
 import one.nem.lacerta.utils.LacertaLogger;
 
@@ -48,6 +57,7 @@ public class LacertaLibraryImpl implements LacertaLibrary {
                 listItem.setTitle(documentEntity.title);
                 listItem.setDescription(DateFormat.getDateInstance().format(documentEntity.updatedAt));
                 listItem.setItemId(documentEntity.id);
+                listItem.setHasCombined(documentEntity.isCombineParent);
                 listItems.add(listItem);
             }
 
@@ -97,6 +107,7 @@ public class LacertaLibraryImpl implements LacertaLibrary {
                 listItem.setTitle(childFolderEntity.name);
                 listItem.setDescription("フォルダ"); // TODO-rca: ハードコーディングやめる
                 listItem.setItemId(childFolderEntity.id);
+                listItem.setHasCombined(false);
                 listItems.add(listItem);
             }
 
@@ -109,6 +120,20 @@ public class LacertaLibraryImpl implements LacertaLibrary {
                 listItem.setTitle(documentEntity.title);
                 listItem.setDescription(simpleDateFormat.format(documentEntity.updatedAt));
                 listItem.setItemId(documentEntity.id);
+                listItem.setHasCombined(documentEntity.isCombineParent);
+                // タグを取得して関連付ける処理 TODO-rca: わかりにくい + 責任がめちゃくちゃ + めちゃくちゃ重いのでなんとかする
+                List<ToxiDocumentTagEntity> documentTagEntities = database.toxiDocumentTagDao().findByDocumentId(documentEntity.id);
+                ArrayList<DocumentTag> documentTags = new ArrayList<>();
+                for (ToxiDocumentTagEntity toxiDocumentTagEntity : documentTagEntities) {
+                    logger.debug("LacertaLibraryImpl", "toxiDocumentTagEntity.tagId: " + toxiDocumentTagEntity.tagId);
+                    TagEntity tagEntity = database.tagDao().findById(toxiDocumentTagEntity.tagId);
+                    if (tagEntity != null) {
+                        logger.debug("LacertaLibraryImpl", "tagEntity.tagName: " + tagEntity.tagName);
+                        documentTags.add(convertTagEntityToDocumentTag(tagEntity));
+                    }
+                }
+                listItem.setTagList(documentTags);
+                logger.debug("LacertaLibraryImpl", "documentTags.size(): " + documentTags.size());
                 listItems.add(listItem);
             }
 
@@ -127,6 +152,48 @@ public class LacertaLibraryImpl implements LacertaLibrary {
         });
     }
 
+    @Override
+    public CompletableFuture<LibraryItemPage> getFolderList(String targetDirId) {
+        return CompletableFuture.supplyAsync(() -> {
+            LibraryItemPage libraryItemPage = new LibraryItemPage();
+
+            List<FolderEntity> folderEntities;
+            if (targetDirId == null) { // When root folder
+                folderEntities = database.folderDao().findRootFolders();
+                libraryItemPage.setParentId(null);
+                libraryItemPage.setPageId(null);
+                libraryItemPage.setPageTitle("ライブラリ");
+            } else {
+                folderEntities = database.folderDao().findByParentId(targetDirId);
+                FolderEntity folderEntity = database.folderDao().findById(targetDirId);
+                if (folderEntity == null) {
+                    logger.warn("LacertaLibraryImpl", targetDirId + " is not found.");
+                    return null;
+                }
+                libraryItemPage.setParentId(folderEntity.parentId);
+                libraryItemPage.setPageId(folderEntity.id);
+                libraryItemPage.setPageTitle(folderEntity.name);
+            }
+
+            ArrayList<ListItem> listItems = new ArrayList<>();
+            for (FolderEntity childFolderEntity : folderEntities) {
+                logger.debug("LacertaLibraryImpl", "childFolderEntity.name: " + childFolderEntity.name);
+                ListItem listItem = new ListItem();
+                listItem.setItemType(ListItemType.ITEM_TYPE_FOLDER);
+                listItem.setTitle(childFolderEntity.name);
+                listItem.setDescription("フォルダ"); // TODO-rca: ハードコーディングやめる
+                listItem.setItemId(childFolderEntity.id);
+                listItem.setHasCombined(false);
+                listItems.add(listItem);
+            }
+
+
+            libraryItemPage.setListItems(listItems);
+
+            return libraryItemPage;
+        });
+    }
+
     @Override
     public CompletableFuture<String> createFolder(String parentId, String name) {
         return CompletableFuture.supplyAsync(() -> {
@@ -164,6 +231,189 @@ public class LacertaLibraryImpl implements LacertaLibrary {
         });
     }
 
+    // Converter
+    private DocumentTag convertTagEntityToDocumentTag(TagEntity tagEntity) {
+        DocumentTag documentTag = new DocumentTag();
+        documentTag.setId(tagEntity.id);
+        documentTag.setName(tagEntity.tagName);
+        documentTag.setColor(tagEntity.color);
+        return documentTag;
+    }
+
+    private TagEntity convertDocumentTagToTagEntity(DocumentTag documentTag) {
+        TagEntity tagEntity = new TagEntity();
+        tagEntity.id = documentTag.getId();
+        tagEntity.tagName = documentTag.getName();
+        tagEntity.color = documentTag.getColor();
+        return tagEntity;
+    }
+
+    @Override
+    public CompletableFuture<ArrayList<DocumentTag>> getTagList() {
+        return CompletableFuture.supplyAsync(() -> {
+            List<TagEntity> tagEntities = database.tagDao().findAll();
+            logger.debug("LacertaLibraryImpl", "Database Query: Get TagEntity List (Size: " + tagEntities.size() + ")");
+            ArrayList<DocumentTag> documentTags = new ArrayList<>();
+            for (TagEntity tagEntity : tagEntities) {
+                documentTags.add(convertTagEntityToDocumentTag(tagEntity));
+            }
+            return documentTags;
+        });
+    }
+
+    @Override
+    public CompletableFuture<ArrayList<DocumentTag>> getAppliedTagList(String documentId) {
+        return CompletableFuture.supplyAsync(() -> {
+            List<ToxiDocumentTagEntity> toxiDocumentTagEntities = database.toxiDocumentTagDao().findByDocumentId(documentId);
+            logger.debug("LacertaLibraryImpl", "Database Query: Get ToxiDocumentTagEntity List (Size: " + toxiDocumentTagEntities.size() + ")");
+            ArrayList<DocumentTag> documentTags = new ArrayList<>();
+            for (ToxiDocumentTagEntity toxiDocumentTagEntity : toxiDocumentTagEntities) {
+                TagEntity tagEntity = database.tagDao().findById(toxiDocumentTagEntity.tagId);
+                if (tagEntity != null) {
+                    documentTags.add(convertTagEntityToDocumentTag(tagEntity));
+                }
+            }
+            return documentTags;
+        });
+    }
+
+    @Override
+    public CompletableFuture<Void> createTag(DocumentTag tag) {
+        return CompletableFuture.supplyAsync(() -> {
+            TagEntity tagEntity = convertDocumentTagToTagEntity(tag);
+            if (Objects.isNull(tagEntity.id) || tagEntity.id.isEmpty()) {
+                tagEntity.id = UUID.randomUUID().toString();
+            }
+            database.tagDao().insert(tagEntity);
+            logger.debug("LacertaLibraryImpl", "Database Query: Inserted TagEntity (" + tag.getId() + ")");
+            return null;
+        });
+    }
+
+    @Override
+    public CompletableFuture<Void> updateTag(DocumentTag tag) {
+        return CompletableFuture.supplyAsync(() -> {
+            TagEntity tagEntity = convertDocumentTagToTagEntity(tag);
+            database.tagDao().update(tagEntity);
+            logger.debug("LacertaLibraryImpl", "Database Query: Updated TagEntity (" + tag.getId() + ")");
+            return null;
+        });
+    }
+
+    @Override
+    public CompletableFuture<Void> deleteTag(String tagId) {
+        return CompletableFuture.supplyAsync(() -> {
+            database.tagDao().deleteById(tagId);
+            logger.debug("LacertaLibraryImpl", "Database Query: Deleted TagEntity (" + tagId + ")");
+            return null;
+        });
+    }
+
+    @Override
+    public CompletableFuture<Void> addTagToDocument(String documentId, String tagId) {
+        return CompletableFuture.supplyAsync(() -> {
+            ToxiDocumentTagEntity toxiDocumentTagEntity = new ToxiDocumentTagEntity();
+            toxiDocumentTagEntity.documentId = documentId;
+            toxiDocumentTagEntity.tagId = tagId;
+            database.toxiDocumentTagDao().insert(toxiDocumentTagEntity);
+            logger.debug("LacertaLibraryImpl", "Database Query: Inserted ToxiDocumentTagEntity");
+            return null;
+        });
+    }
+
+    @Override
+    public CompletableFuture<Void> removeTagFromDocument(String documentId, String tagId) {
+        return CompletableFuture.supplyAsync(() -> {
+            database.toxiDocumentTagDao().deleteByDocumentIdAndTagId(documentId, tagId);
+            logger.debug("LacertaLibraryImpl", "Database Query: Deleted ToxiDocumentTagEntity");
+            return null;
+        });
+    }
+
+    @Override
+    public CompletableFuture<Void> combineDocument(String targetId1, String tagetId2) {
+        return CompletableFuture.supplyAsync(() -> {
+            DocumentEntity target1DocumentEntity = database.documentDao().findById(targetId1);
+            DocumentEntity target2DocumentEntity = database.documentDao().findById(tagetId2);
+            if (target1DocumentEntity == null || target2DocumentEntity == null) {
+                logger.warn("LacertaLibraryImpl", "DocumentEntity is not found.");
+                return null;
+            }
+            target1DocumentEntity.isCombineChild = true;
+            target2DocumentEntity.isCombineChild = true;
+            database.documentDao().update(target1DocumentEntity);
+            database.documentDao().update(target2DocumentEntity);
+            logger.debug("LacertaLibraryImpl", "Database Query: Updated DocumentEntity");
+
+            DocumentEntity parentDocumentEntity = new DocumentEntity();
+            parentDocumentEntity.id = UUID.randomUUID().toString();
+            parentDocumentEntity.title = target1DocumentEntity.title + "(Combined)";
+            parentDocumentEntity.parentId = target1DocumentEntity.parentId;
+            parentDocumentEntity.author = target1DocumentEntity.author; // TODO-rca: Target1とTarget2の作者が異なる場合の処理
+            // CombinedなDocumentはいま作成された と考える
+            parentDocumentEntity.createdAt = new Date();
+            parentDocumentEntity.updatedAt = new Date();
+            parentDocumentEntity.isCombineParent = true;
+            parentDocumentEntity.isCombineChild = false;
+            database.documentDao().insert(parentDocumentEntity);
+            logger.debug("LacertaLibraryImpl", "Database Query: Inserted DocumentEntity");
+
+            insertCombineDocumentToxi(parentDocumentEntity.id, target1DocumentEntity.id, target1DocumentEntity.title);
+            insertCombineDocumentToxi(parentDocumentEntity.id, target2DocumentEntity.id, target2DocumentEntity.title);
+            return null;
+        });
+    }
+
+    private void insertCombineDocumentToxi(String parentId, String childId, String titleCache) {
+        ToxiDocumentEntity toxiDocumentEntity = new ToxiDocumentEntity();
+        toxiDocumentEntity.parentDocumentId = parentId;
+        toxiDocumentEntity.childDocumentId = childId;
+        toxiDocumentEntity.order = 0; // TODO-rca: 並び順の概念をもたせる
+        toxiDocumentEntity.isActive = true; // TODO-rca: タブから非表示にできるようにする
+        toxiDocumentEntity.titleCache = titleCache;
+        database.toxiDocumentDao().insert(toxiDocumentEntity);
+        logger.debug("LacertaLibraryImpl", "Database Query: Inserted ToxiDocumentEntity");
+    }
+
+    @Override
+    public CompletableFuture<Void> uncombineDocument(String parentId, String childId) {
+        return CompletableFuture.supplyAsync(() -> {
+            DocumentEntity parentDocumentEntity = database.documentDao().findById(parentId);
+            DocumentEntity childDocumentEntity = database.documentDao().findById(childId);
+            if (parentDocumentEntity == null || childDocumentEntity == null) {
+                logger.warn("LacertaLibraryImpl", "DocumentEntity is not found.");
+                return null;
+            }
+            parentDocumentEntity.isCombineParent = false;
+            childDocumentEntity.isCombineChild = false;
+            database.documentDao().update(parentDocumentEntity);
+            database.documentDao().update(childDocumentEntity);
+            logger.debug("LacertaLibraryImpl", "Database Query: Updated DocumentEntity");
+
+            database.toxiDocumentDao().deleteByParentIdAndChildId(parentId, childId);
+            logger.debug("LacertaLibraryImpl", "Database Query: Deleted ToxiDocumentEntity");
+            return null;
+        });
+    }
+
+    @Override
+    public CompletableFuture<ArrayList<ToxiDocumentModel>> getCombinedDocumentToxiList(String parentId) {
+        return CompletableFuture.supplyAsync(() -> {
+            List<ToxiDocumentEntity> toxiDocumentEntities = database.toxiDocumentDao().findByParentId(parentId);
+            ArrayList<ToxiDocumentModel> toxiDocumentModels = new ArrayList<>();
+            for (ToxiDocumentEntity toxiDocumentEntity : toxiDocumentEntities) {
+                ToxiDocumentModel toxiDocumentModel = new ToxiDocumentModel();
+                toxiDocumentModel.setParentDocumentId(toxiDocumentEntity.parentDocumentId);
+                toxiDocumentModel.setChildDocumentId(toxiDocumentEntity.childDocumentId);
+                toxiDocumentModel.setOrder(toxiDocumentEntity.order);
+                toxiDocumentModel.setActive(toxiDocumentEntity.isActive);
+                toxiDocumentModel.setTitleCache(toxiDocumentEntity.titleCache);
+                toxiDocumentModels.add(toxiDocumentModel);
+            }
+            return toxiDocumentModels;
+        });
+    }
+
     /**
      * 再帰的にパスを解決する
      *

feature/home/src/main/java/one/nem/lacerta/feature/home/DocumentSelectListener.java

@@ -1,5 +1,5 @@
 package one.nem.lacerta.feature.home;
 
 public interface DocumentSelectListener {
-    void onDocumentSelect(String documentId, String documentName);
+    void onDocumentSelect(String documentId, String documentName, boolean hasCombined);
 }

feature/home/src/main/java/one/nem/lacerta/feature/home/HomeTopFragment.java

@@ -1,5 +1,6 @@
 package one.nem.lacerta.feature.home;
 
+import android.app.ActivityOptions;
 import android.content.Intent;
 import android.os.Bundle;
 import android.util.Log;
@@ -84,12 +85,13 @@ public class HomeTopFragment extends Fragment {
 
         this.listItemAdapter = new ListItemAdapter(new DocumentSelectListener() {
             @Override
-            public void onDocumentSelect(String documentId, String documentName) {
+            public void onDocumentSelect(String documentId, String documentName, boolean hasCombined) {
                 Intent intent = new Intent(getContext(), ViewerMainActivity.class);
                 Log.d("HomeTopFragment", "onDocumentSelect: " + documentId + " " + documentName);
                 intent.putExtra("documentId", documentId);
                 intent.putExtra("documentName", documentName);
-                startActivity(intent);
+                intent.putExtra("hasCombined", hasCombined);
+                startActivity(intent, ActivityOptions.makeCustomAnimation(getContext(), one.nem.lacerta.shared.ui.R.anim.nav_up_enter_anim, one.nem.lacerta.shared.ui.R.anim.nav_up_exit_anim).toBundle());
             }
         });
         recyclerView.setAdapter(listItemAdapter);
@@ -106,20 +108,22 @@ public class HomeTopFragment extends Fragment {
     }
 
     private void updateList() {
+        long startTime = System.currentTimeMillis();
         lacertaLibrary.getRecentDocument(10).thenAccept(listItems -> {
+            long endTime = System.currentTimeMillis();
             if (listItems == null) {
                 return;
             }
             this.listItemAdapter.setListItems(listItems);
-            getActivity().runOnUiThread(() -> {
-                Log.d("HomeTopFragment", "onViewCreated: " + listItems.size());
-                if (FeatureSwitch.RecyclerView.useSimpleNotifyMethod) {
+            if (endTime - startTime > 500) { // 500ms以上かかった場合は表示アニメーションをする
+                getActivity().runOnUiThread(() -> {
+                    this.listItemAdapter.notifyItemRangeInserted(0, listItems.size());
+                });
+            } else {
+                getActivity().runOnUiThread(() -> {
                     this.listItemAdapter.notifyDataSetChanged();
-                } else {
-                    // IndexOutOfBoundsExceptionを吐くことがあったので いったん
-                    this.listItemAdapter.notifyItemRangeInserted(0, listItems.size() - 1);
-                }
-            });
+                });
+            }
         });
     }
 

feature/home/src/main/java/one/nem/lacerta/feature/home/ListItemAdapter.java

@@ -46,7 +46,7 @@ public class ListItemAdapter extends RecyclerView.Adapter<ListItemAdapter.ListIt
         holder.description.setText(listItem.getDescription());
 
         holder.itemView.setOnClickListener( v -> {
-            listener.onDocumentSelect(listItem.getItemId(), listItem.getTitle());
+            listener.onDocumentSelect(listItem.getItemId(), listItem.getTitle(), listItem.getHasCombined());
         });
     }
 

feature/library/build.gradle

@@ -55,5 +55,6 @@ dependencies {
 
     implementation project(':component:viewer')
 
-
+    // TODO-rca: バージョンカタログに切り出す
+    implementation "com.hendraanggrian.material:collapsingtoolbarlayout-subtitle:1.5.0"
 }

feature/library/src/main/java/one/nem/lacerta/feature/library/DocumentSelectListener.java

@@ -2,5 +2,5 @@ package one.nem.lacerta.feature.library;
 
 public interface DocumentSelectListener {
     void onFolderSelected(String folderId, String folderName);
-    void onDocumentSelected(String documentId, String documentName);
+    void onDocumentSelected(String documentId, String documentName, boolean hasCombined);
 }

feature/library/src/main/java/one/nem/lacerta/feature/library/LibraryPageFragment.java

@@ -1,11 +1,8 @@
 package one.nem.lacerta.feature.library;
 
-import android.app.AlertDialog;
 import android.content.Intent;
 import android.os.Bundle;
 
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.widget.Toolbar;
 import androidx.core.content.ContextCompat;
 import androidx.fragment.app.Fragment;
@@ -14,24 +11,11 @@ import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
 import android.view.LayoutInflater;
-import android.view.Menu;
-import android.view.MenuInflater;
-import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.ArrayAdapter;
-import android.widget.ListView;
-import android.widget.TextView;
-import android.widget.Toast;
 
 import com.google.android.material.appbar.AppBarLayout;
-import com.google.android.material.appbar.CollapsingToolbarLayout;
-
-import org.w3c.dom.Text;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Objects;
+import com.google.android.material.dialog.MaterialAlertDialogBuilder;
 
 import javax.inject.Inject;
 
@@ -39,9 +23,9 @@ import dagger.hilt.android.AndroidEntryPoint;
 import one.nem.lacerta.component.viewer.ViewerMainActivity;
 import one.nem.lacerta.data.Document;
 import one.nem.lacerta.data.LacertaLibrary;
-import one.nem.lacerta.model.FragmentNavigation;
 import one.nem.lacerta.model.LibraryItemPage;
-import one.nem.lacerta.model.PublicPath;
+import one.nem.lacerta.model.ListItemType;
+import one.nem.lacerta.model.document.tag.DocumentTag;
 import one.nem.lacerta.utils.FeatureSwitch;
 import one.nem.lacerta.utils.LacertaLogger;
 
@@ -62,6 +46,7 @@ public class LibraryPageFragment extends Fragment {
     String folderId;
     String title;
     String parentId;
+    Toolbar toolbar;
 
 
     @Inject
@@ -70,6 +55,9 @@ public class LibraryPageFragment extends Fragment {
     @Inject
     LacertaLogger logger;
 
+    @Inject
+    Document document;
+
     ListItemAdapter listItemAdapter;
 
     public LibraryPageFragment() {
@@ -147,12 +135,19 @@ public class LibraryPageFragment extends Fragment {
             logger.debug("LibraryTopFragment", "getArguments() is null(maybe root)");
             this.libraryItemPage = new LibraryItemPage();
         }
+        this.toolbar = view.findViewById(R.id.library_toolbar);
 
         // Toolbar Setup
-        toolbarSetup(view.findViewById(R.id.library_toolbar), this.folderId != null, this.title != null ? this.title : "ライブラリ");
+        toolbarSetup(this.toolbar, this.folderId != null, this.title != null ? this.title : "ライブラリ");
+        if(this.folderId == null) {
+            updateToolbarSubtitle(this.toolbar, null); //負荷軽減のため+邪魔なので（folderIdがnullの場合は、ルートフォルダを表示しているので）
+        } else {
+            lacertaLibrary.getPublicPath(this.folderId, ListItemType.ITEM_TYPE_FOLDER).thenAccept(publicPath -> {
+                updateToolbarSubtitle(this.toolbar, "/" + publicPath.parent().getStringPath());
+            });
+        }
 
         // RecyclerView Setup
-
         RecyclerView recyclerView = view.findViewById(R.id.library_item_recycler_view);
         this.listItemAdapter = new ListItemAdapter(new DocumentSelectListener() {
             @Override
@@ -174,11 +169,12 @@ public class LibraryPageFragment extends Fragment {
             }
 
             @Override
-            public void onDocumentSelected(String documentId, String documentName) {
+            public void onDocumentSelected(String documentId, String documentName, boolean hasCombined) {
                 Intent intent = new Intent(getContext(), ViewerMainActivity.class);
                 logger.debug("LibraryTopFragment", "Document selected! documentId: " + documentId + ", documentName: " + documentName);
                 intent.putExtra("documentId", documentId);
                 intent.putExtra("documentName", documentName);
+                intent.putExtra("hasCombined", hasCombined);
                 startActivity(intent);
             }
         });
@@ -187,72 +183,71 @@ public class LibraryPageFragment extends Fragment {
         recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
 
         // Get library page and update RecyclerView items
-        lacertaLibrary.getLibraryPage(this.folderId, 10).thenAccept(libraryItemPage -> {
-            this.libraryItemPage = libraryItemPage;
 
-            if (this.parentId == null) {
-                this.parentId = libraryItemPage.getParentId();
-            }
-            if (this.title == null) {
-                this.title = libraryItemPage.getPageTitle();
-                // Toolbar init again
-                toolbarSetup(view.findViewById(R.id.library_toolbar), this.folderId != null, this.title != null ? this.title : "ライブラリ");
-            }
-
-            logger.debug("LibraryTopFragment", "Item selected! Total item page: " + this.libraryItemPage.getListItems().size());
-            if (!FeatureSwitch.RecyclerView.useSimpleNotifyMethod) {
-                getActivity().runOnUiThread(() -> { // TODO-rca: 実行条件を考える？
-                    listItemAdapter.notifyItemRangeRemoved(0, this.libraryItemPage.getListItems().size() - 1);
-                });
-            }
-            listItemAdapter.setLibraryItemPage(this.libraryItemPage);
-            getActivity().runOnUiThread(() -> {
-                if (FeatureSwitch.RecyclerView.useSimpleNotifyMethod) {
-                    listItemAdapter.notifyDataSetChanged();
-                } else {
-                    listItemAdapter.notifyItemRangeInserted(0, this.libraryItemPage.getListItems().size() - 1);
-                }
-            });
-        });
+        updateItem(this.folderId);
     }
 
     /**
      * Currentにフォルダを作成する
      */
     private void createFolder(String pageId) {
-        // TODO-rca: デザインをMaterial Design 3に合わせたカスタムダイアログにする
-        AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
+        MaterialAlertDialogBuilder builder = new MaterialAlertDialogBuilder(requireContext());
         builder.setTitle("フォルダの作成");
         builder.setMessage("フォルダ名を入力してください");
-        final android.widget.EditText input = new android.widget.EditText(getContext());
-        input.setText("フォルダ名");
-        builder.setView(input);
+
+        View view = LayoutInflater.from(requireContext()).inflate(one.nem.lacerta.shared.ui.R.layout.lacerta_dialog_edit_text_layout, null);
+        final com.google.android.material.textfield.TextInputEditText input = view.findViewById(one.nem.lacerta.shared.ui.R.id.custom_edit_text);
+        final com.google.android.material.textfield.TextInputLayout inputLayout = view.findViewById(one.nem.lacerta.shared.ui.R.id.custom_text_input_layout);
+        inputLayout.setHint("フォルダ名");
+
+        builder.setView(view);
+
         builder.setPositiveButton("作成", (dialog, which) -> {
             lacertaLibrary.createFolder(pageId, input.getText().toString()).thenAccept(folderId -> {
                 // Refresh
                 updateItem(pageId);
+
             });
         });
         builder.setNegativeButton("キャンセル", (dialog, which) -> {
             dialog.cancel();
         });
+
         builder.show();
     }
 
     /**
-     * RecyclerViewのアイテムを更新する
+     * RecyclerViewのアイテムとUIを更新する
      */
     private void updateItem(String pageId) {
+        long startTime = System.currentTimeMillis();
         lacertaLibrary.getLibraryPage(pageId, 10).thenAccept(libraryItemPage -> {
+            long endTime = System.currentTimeMillis();
             this.libraryItemPage = libraryItemPage;
             logger.debug("LibraryTopFragment", "Item selected! libraryItemPage.getListItems().size(): " + libraryItemPage.getListItems().size());
-            getActivity().runOnUiThread(() -> {
-                listItemAdapter.notifyItemRangeRemoved(0, libraryItemPage.getListItems().size() - 1);
-            });
             listItemAdapter.setLibraryItemPage(libraryItemPage);
-            getActivity().runOnUiThread(() -> {
-                listItemAdapter.notifyItemRangeInserted(0, libraryItemPage.getListItems().size() - 1);
-            });
+            if (endTime - startTime > 500) { // 500ms以上かかった場合は表示アニメーションをする
+                getActivity().runOnUiThread(() -> {
+                    listItemAdapter.notifyItemRangeInserted(0, this.libraryItemPage.getListItems().size());
+                });
+            } else {
+                getActivity().runOnUiThread(() -> {
+                    listItemAdapter.notifyDataSetChanged();
+                });
+            }
+        });
+    }
+
+    private void getTag(String documentId) { //debug
+    }
+
+    /**
+     * Toolbarのサブタイトルを更新
+     * @param subtitle サブタイトル
+     */
+    private void updateToolbarSubtitle(Toolbar toolbar, String subtitle) {
+        getActivity().runOnUiThread(() -> {
+            toolbar.setSubtitle(subtitle);
         });
     }
 

feature/library/src/main/java/one/nem/lacerta/feature/library/ListItemAdapter.java

@@ -1,14 +1,19 @@
 package one.nem.lacerta.feature.library;
 
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.RecyclerView;
 
+import com.google.android.material.chip.Chip;
+import com.google.android.material.chip.ChipGroup;
+
 import one.nem.lacerta.model.LibraryItemPage;
 import one.nem.lacerta.model.ListItem;
 import one.nem.lacerta.model.ListItemType;
@@ -31,7 +36,7 @@ public class ListItemAdapter extends RecyclerView.Adapter<ListItemAdapter.ListIt
     @NonNull
     @Override
     public ListItemViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
-        View view = LayoutInflater.from(parent.getContext()).inflate(one.nem.lacerta.shared.ui.R.layout.common_list_item, parent, false);
+        View view = LayoutInflater.from(parent.getContext()).inflate(one.nem.lacerta.shared.ui.R.layout.common_list_item_with_tag, parent, false);
         return new ListItemViewHolder(view);
     }
 
@@ -43,9 +48,22 @@ public class ListItemAdapter extends RecyclerView.Adapter<ListItemAdapter.ListIt
         holder.title.setText(listItem.getTitle());
         holder.description.setText(listItem.getDescription());
 
+        if (listItem.getTagList() != null && !listItem.getTagList().isEmpty()) {
+            for (int i = 0; i < listItem.getTagList().size(); i++) {
+                Toast.makeText(holder.tagGroup.getContext(), listItem.getTagList().get(i).getName(), Toast.LENGTH_SHORT).show();
+                ChipGroup chipGroup = holder.tagGroup;
+                Chip chip = new Chip(chipGroup.getContext());
+                chip.setText(listItem.getTagList().get(i).getName());
+                chipGroup.addView(chip);
+            }
+            holder.tagGroup.setVisibility(View.VISIBLE);
+        } else {
+            holder.tagGroup.setVisibility(View.GONE);
+        }
+
         holder.itemView.setOnClickListener( v -> {
             if (listItem.getItemType() == ListItemType.ITEM_TYPE_DOCUMENT) {
-                listener.onDocumentSelected(listItem.getItemId(), listItem.getTitle());
+                listener.onDocumentSelected(listItem.getItemId(), listItem.getTitle(), listItem.getHasCombined());
             }
             else if (listItem.getItemType() == ListItemType.ITEM_TYPE_FOLDER) {
                 listener.onFolderSelected(listItem.getItemId(), listItem.getTitle());
@@ -64,12 +82,14 @@ public class ListItemAdapter extends RecyclerView.Adapter<ListItemAdapter.ListIt
         ImageView icon;
         TextView title;
         TextView description;
+        ChipGroup tagGroup;
         public ListItemViewHolder(@NonNull View itemView) {
             super(itemView);
 
             icon = itemView.findViewById(one.nem.lacerta.shared.ui.R.id.item_icon);
             title = itemView.findViewById(one.nem.lacerta.shared.ui.R.id.item_title);
             description = itemView.findViewById(one.nem.lacerta.shared.ui.R.id.item_description);
+            tagGroup = itemView.findViewById(one.nem.lacerta.shared.ui.R.id.item_tags);
         }
     }
 }

feature/library/src/main/java/one/nem/lacerta/feature/library/TagAdapter.java

@@ -0,0 +1,44 @@
+package one.nem.lacerta.feature.library;
+
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+
+import com.google.android.material.chip.Chip;
+
+import java.util.ArrayList;
+
+import one.nem.lacerta.model.document.tag.DocumentTag;
+
+public class TagAdapter extends BaseAdapter {
+
+    private ArrayList<DocumentTag> tagList;
+
+    @Override
+    public int getCount() {
+        return 0;
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return null;
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return 0;
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        Chip chip;
+        if (convertView == null) {
+            chip = new Chip(parent.getContext());
+        }
+        else {
+            chip = (Chip) convertView;
+        }
+        chip.setText(tagList.get(position).getName());
+        return chip;
+    }
+}

feature/library/src/main/res/layout/fragment_library_top.xml

@@ -13,7 +13,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content">
 
-            <com.google.android.material.appbar.CollapsingToolbarLayout
+            <com.google.android.material.appbar.SubtitleCollapsingToolbarLayout
                 android:id="@+id/collapsing_toolbar"
                 app:contentScrim="@color/colorSecondaryContainer"
                 android:background="@color/colorSurface"
@@ -35,7 +35,7 @@
                     app:layout_collapseMode="pin"
                     app:title="HOGE" />
 
-            </com.google.android.material.appbar.CollapsingToolbarLayout>
+            </com.google.android.material.appbar.SubtitleCollapsingToolbarLayout>
 
         </com.google.android.material.appbar.AppBarLayout>
 

feature/library/src/main/res/navigation/feature_library_navigation.xml

@@ -12,10 +12,10 @@
         <action
             android:id="@+id/action_feature_library_top_fragment_self"
             app:destination="@id/feature_library_top_fragment"
-            app:enterAnim="@anim/nav_default_enter_anim"
-            app:exitAnim="@anim/nav_default_exit_anim"
-            app:popEnterAnim="@anim/nav_default_pop_enter_anim"
-            app:popExitAnim="@anim/nav_default_pop_exit_anim"
+            app:enterAnim="@anim/nav_twitter_enter_anim"
+            app:exitAnim="@anim/nav_twitter_exit_anim"
+            app:popEnterAnim="@anim/nav_twitter_pop_enter_anim"
+            app:popExitAnim="@anim/nav_twitter_pop_exit_anim"
             app:popUpTo="@id/feature_library_top_fragment"
             app:popUpToInclusive="false"/>
     </fragment>

feature/setting/build.gradle

@@ -1,5 +1,6 @@
 plugins {
     alias(libs.plugins.com.android.library)
+    id 'com.google.dagger.hilt.android'
 }
 
 android {
@@ -45,6 +46,12 @@ dependencies {
     // shared
     implementation project(':shared:ui')
 
+    implementation project(':component:common')
+
+    implementation project(':data')
+
+    implementation project(':model')
+
     // https://mvnrepository.com/artifact/androidx.preference/preference
     implementation 'androidx.preference:preference:1.2.1'
 

feature/setting/src/main/java/one/nem/lacerta/setting/SettingTagManageFragment.java

@@ -0,0 +1,148 @@
+package one.nem.lacerta.setting;
+
+import android.os.Bundle;
+
+import androidx.appcompat.widget.Toolbar;
+import androidx.fragment.app.Fragment;
+import androidx.navigation.Navigation;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Toast;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.AndroidEntryPoint;
+import one.nem.lacerta.component.common.LacertaCreateTagDialog;
+import one.nem.lacerta.component.common.LacertaCreateTagDialogListener;
+import one.nem.lacerta.data.LacertaLibrary;
+import one.nem.lacerta.model.document.tag.DocumentTag;
+
+/**
+ * A simple {@link Fragment} subclass.
+ * Use the {@link SettingTagManageFragment#newInstance} factory method to
+ * create an instance of this fragment.
+ */
+@AndroidEntryPoint
+public class SettingTagManageFragment extends Fragment {
+
+    @Inject
+    LacertaLibrary lacertaLibrary;
+
+    private RecyclerView recyclerView;
+
+    private TagListItemAdapter adapter;
+
+    public SettingTagManageFragment() {
+        // Required empty public constructor
+    }
+
+    public static SettingTagManageFragment newInstance() {
+        SettingTagManageFragment fragment = new SettingTagManageFragment();
+        Bundle args = new Bundle();
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        View view = inflater.inflate(R.layout.fragment_setting_tag_manage, container, false);
+
+        // Toolbar
+        Toolbar toolbar = view.findViewById(R.id.tag_manage_toolbar);
+        toolbarSetup(toolbar, true, "タグ管理");
+
+        return view;
+    }
+
+    @Override
+    public void onViewCreated(View view, Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        this.recyclerView = view.findViewById(R.id.tag_item_recycler_view);
+        this.adapter = new TagListItemAdapter((tagId, tagName, tagColor) -> {
+            Toast.makeText(getContext(), "Tag Clicked", Toast.LENGTH_SHORT).show();
+        });
+
+        recyclerView.setAdapter(adapter);
+        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
+
+        updateTagList();
+    }
+
+    /**
+     * タグリストを更新する
+     */
+    private void updateTagList() {
+        lacertaLibrary.getTagList().thenAccept(documentTags -> {
+            int currentTagCount = this.adapter.getItemCount();
+            this.adapter.setDocumentTags(documentTags);
+            if (currentTagCount != this.adapter.getItemCount()) {
+                this.adapter.notifyItemRangeRemoved(0, currentTagCount);
+                this.adapter.notifyItemRangeInserted(0, this.adapter.getItemCount());
+            }
+        });
+    }
+
+    /**
+     * ToolbarをInitする
+     *
+     * @param toolbar Toolbar
+     * @param showBackButton 戻るボタンを表示するか
+     * @param title タイトル
+     */
+    private void toolbarSetup(Toolbar toolbar, boolean showBackButton, String title) {
+        getActivity().runOnUiThread(() -> {
+            if (showBackButton) {
+                toolbar.setNavigationIcon(one.nem.lacerta.shared.ui.R.drawable.arrow_back_24px);
+                toolbar.setNavigationOnClickListener(v -> {
+                    //this.libraryItemPage = lacertaLibrary.getLibraryPage(this.libraryItemPage.getParentId(), 10).join();
+                    // Back
+                    Navigation.findNavController(requireView()).popBackStack();
+                });
+            } else {
+                toolbar.setNavigationIcon(null);
+            }
+            toolbar.setTitle(title);
+            toolbar.getMenu().clear();
+            toolbar.inflateMenu(R.menu.setting_tag_manage_menu);
+            toolbar.setOnMenuItemClickListener(item -> {
+                if (item.getItemId() == R.id.setting_tag_manage_menu_add) {
+                    Toast.makeText(getContext(), "Add Clicked", Toast.LENGTH_SHORT).show();
+                    LacertaCreateTagDialog dialog = new LacertaCreateTagDialog();
+                    dialog.setListener(new LacertaCreateTagDialogListener() {
+                        @Override
+                        public void onPositiveClick(String tagName, String tagColor) {
+                            Toast.makeText(getContext(), "Positive Clicked", Toast.LENGTH_SHORT).show();
+                            DocumentTag newTag = new DocumentTag();
+                            newTag.setName(tagName);
+                            newTag.setColor(tagColor);
+                            lacertaLibrary.createTag(newTag).join();
+                            updateTagList();
+                        }
+
+                        @Override
+                        public void onNegativeClick() {
+                            Toast.makeText(getContext(), "Negative Clicked", Toast.LENGTH_SHORT).show();
+                            updateTagList();
+                        }
+                    });
+                    dialog.show(getParentFragmentManager(), "create_tag_dialog");
+                    return true;
+                } else {
+                    return false;
+                }
+            });
+        });
+    }
+}

feature/setting/src/main/java/one/nem/lacerta/setting/SettingTopFragment.java

@@ -74,6 +74,15 @@ public class SettingTopFragment extends Fragment {
                 )
         );
 
+        settingListItems.add(
+                new SettingListItem(
+                        "タグ管理", // TODO-rca: リソースに移動
+                        "タグの追加・編集・削除", // TODO-rca: リソースに移動
+                        ContextCompat.getDrawable(getContext(), one.nem.lacerta.shared.ui.R.drawable.sell_24px),
+                        R.id.action_settingTopFragment_to_settingTagManageFragment
+                )
+        );
+
         settingListItems.add(
                 new SettingListItem(
                         getResources().getString(one.nem.lacerta.shared.ui.R.string.setting_top_about_title),

feature/setting/src/main/java/one/nem/lacerta/setting/TagListItemAdapter.java

@@ -0,0 +1,69 @@
+package one.nem.lacerta.setting;
+
+import android.graphics.Color;
+import android.media.Image;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.ArrayList;
+
+import one.nem.lacerta.model.document.tag.DocumentTag;
+
+public class TagListItemAdapter extends RecyclerView.Adapter<TagListItemAdapter.TagListItemViewHolder> {
+
+    ArrayList<DocumentTag> documentTags;
+
+    TagListItemSelectListener listener;
+
+    public TagListItemAdapter(TagListItemSelectListener listener) {
+        this.listener = listener;
+    }
+
+    public void setDocumentTags(ArrayList<DocumentTag> documentTags) {
+        this.documentTags = documentTags;
+    }
+
+    @NonNull
+    @Override
+    public TagListItemViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(parent.getContext()).inflate(one.nem.lacerta.shared.ui.R.layout.tag_list_full_item, parent, false);
+        return new TagListItemViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull TagListItemViewHolder holder, int position) {
+        DocumentTag documentTag = documentTags.get(position);
+
+        holder.tag_name.setText(documentTag.getName());
+        try {
+            holder.tag_icon.setColorFilter(Color.parseColor(documentTag.getColor()));
+        } catch (Exception e) {
+            holder.tag_name.setText("Sorry, Parse Error occurred");
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        return documentTags == null ? 0 : documentTags.size();
+    }
+
+    public static class TagListItemViewHolder extends RecyclerView.ViewHolder {
+
+        ImageView tag_icon;
+        TextView tag_name;
+
+        public TagListItemViewHolder(@NonNull View itemView) {
+            super(itemView);
+
+            tag_icon = itemView.findViewById(one.nem.lacerta.shared.ui.R.id.tag_icon);
+            tag_name = itemView.findViewById(one.nem.lacerta.shared.ui.R.id.tag_name);
+
+        }
+    }
+}

feature/setting/src/main/java/one/nem/lacerta/setting/TagListItemSelectListener.java

@@ -0,0 +1,6 @@
+package one.nem.lacerta.setting;
+
+public interface TagListItemSelectListener {
+
+    void onTagListItemSelect(String tagId, String tagName, String tagColor);
+}

feature/setting/src/main/res/layout/fragment_setting_tag_manage.xml

@@ -0,0 +1,50 @@
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/colorSurface">
+
+    <androidx.coordinatorlayout.widget.CoordinatorLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <com.google.android.material.appbar.AppBarLayout
+            android:id="@+id/app_bar_layout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+
+            <com.google.android.material.appbar.CollapsingToolbarLayout
+                android:id="@+id/collapsing_toolbar"
+                app:contentScrim="@color/colorSecondaryContainer"
+                android:background="@color/colorSurface"
+                android:layout_width="match_parent"
+                android:layout_height="160dp"
+                android:fitsSystemWindows="true"
+                android:minHeight="?attr/actionBarSize"
+                app:collapsedTitleGravity="start|center_vertical"
+                app:expandedTitleGravity="start|bottom"
+                app:expandedTitleMarginBottom="16dp"
+                app:expandedTitleMarginStart="16dp"
+                app:expandedTitleTextAppearance="@style/TextAppearance.MaterialComponents.Headline4"
+                app:layout_scrollFlags="scroll|exitUntilCollapsed">
+
+                <androidx.appcompat.widget.Toolbar
+                    android:id="@+id/tag_manage_toolbar"
+                    android:layout_width="match_parent"
+                    android:layout_height="?attr/actionBarSize"
+                    app:layout_collapseMode="pin"
+                    app:title="@string/setting_top_display_title" />
+
+            </com.google.android.material.appbar.CollapsingToolbarLayout>
+
+        </com.google.android.material.appbar.AppBarLayout>
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/tag_item_recycler_view"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            app:layout_behavior="@string/appbar_scrolling_view_behavior"/>           app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
+    </androidx.coordinatorlayout.widget.CoordinatorLayout>
+
+</FrameLayout>

feature/setting/src/main/res/menu/setting_tag_manage_menu.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/setting_tag_manage_menu_add"
+        android:icon="@drawable/outline_developer_mode_24"
+        android:title="@string/placeholder"
+        app:showAsAction="ifRoom"/>
+</menu>

feature/setting/src/main/res/navigation/feature_setting_navigation.xml

@@ -37,6 +37,9 @@
             app:exitAnim="@anim/slide_to_left"
             app:popEnterAnim="@anim/slide_from_left"
             app:popExitAnim="@anim/slide_to_right" />
+        <action
+            android:id="@+id/action_settingTopFragment_to_settingTagManageFragment"
+            app:destination="@id/settingTagManageFragment" />
     </fragment>
     <fragment
         android:id="@+id/settingAboutPageFragment"
@@ -58,4 +61,8 @@
         android:name="one.nem.lacerta.setting.SettingScanPageFragment"
         android:label="fragment_setting_scan_page"
         tools:layout="@layout/fragment_setting_scan_page" />
+    <fragment
+        android:id="@+id/settingTagManageFragment"
+        android:name="one.nem.lacerta.setting.SettingTagManageFragment"
+        android:label="SettingTagManageFragment" />
 </navigation>

lacerta/.gitignore

@@ -0,0 +1 @@
+/build

lacerta/build.gradle

@@ -0,0 +1,39 @@
+plugins {
+    id 'com.android.application'
+}
+
+android {
+    namespace 'com.example.lacerta'
+    compileSdk 33
+
+    defaultConfig {
+        applicationId "com.example.lacerta"
+        minSdk 26
+        targetSdk 33
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.appcompat:appcompat:1.6.1'
+    implementation 'com.google.android.material:material:1.5.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
+}

lacerta/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

lacerta/src/androidTest/java/com/example/lacerta/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.example.lacerta;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.lacerta", appContext.getPackageName());
+    }
+}

lacerta/src/main/AndroidManifest.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Lacerta"></application>
+
+</manifest>

lacerta/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

lacerta/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

lacerta/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

lacerta/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

lacerta/src/main/res/values-night/themes.xml

@@ -0,0 +1,7 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Base.Theme.Lacerta" parent="Theme.Material3.DayNight.NoActionBar">
+        <!-- Customize your dark theme here. -->
+        <!-- <item name="colorPrimary">@color/my_dark_primary</item> -->
+    </style>
+</resources>

lacerta/src/main/res/values/colors.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>

lacerta/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">Lacerta</string>
+</resources>

lacerta/src/main/res/values/themes.xml

@@ -0,0 +1,9 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Base.Theme.Lacerta" parent="Theme.Material3.DayNight.NoActionBar">
+        <!-- Customize your light theme here. -->
+        <!-- <item name="colorPrimary">@color/my_light_primary</item> -->
+    </style>
+
+    <style name="Theme.Lacerta" parent="Base.Theme.Lacerta" />
+</resources>

lacerta/src/test/java/com/example/lacerta/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package com.example.lacerta;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}

model/src/main/java/one/nem/lacerta/model/ListItem.java

@@ -2,6 +2,10 @@ package one.nem.lacerta.model;
 
 import android.graphics.drawable.Drawable;
 
+import java.util.ArrayList;
+
+import one.nem.lacerta.model.document.tag.DocumentTag;
+
 public class ListItem {
 
     // Properties
@@ -10,6 +14,8 @@ public class ListItem {
     String description;
     ListItemType itemType;
     String itemId;
+    boolean hasCombined;
+    ArrayList<DocumentTag> tagList;
 
     // Constructor
 
@@ -20,6 +26,23 @@ public class ListItem {
         this.itemId = itemId;
     }
 
+    public ListItem(String title, String description, ListItemType itemType, String itemId, boolean hasCombined) {
+        this.title = title;
+        this.description = description;
+        this.itemType = itemType;
+        this.itemId = itemId;
+        this.hasCombined = hasCombined;
+    }
+
+    public ListItem(String title, String description, ListItemType itemType, String itemId,boolean hasCombined, ArrayList<DocumentTag> tagList) {
+        this.title = title;
+        this.description = description;
+        this.itemType = itemType;
+        this.itemId = itemId;
+        this.hasCombined = hasCombined;
+        this.tagList = tagList;
+    }
+
     public ListItem() {
         // Empty constructor
     }
@@ -42,6 +65,14 @@ public class ListItem {
         return itemId;
     }
 
+    public boolean getHasCombined() {
+        return hasCombined;
+    }
+
+    public ArrayList<DocumentTag> getTagList() {
+        return tagList;
+    }
+
     // Setter
 
     public void setTitle(String title) {
@@ -60,4 +91,11 @@ public class ListItem {
         this.itemId = itemId;
     }
 
+    public void setHasCombined(boolean hasCombined) {
+        this.hasCombined = hasCombined;
+    }
+
+    public void setTagList(ArrayList<DocumentTag> tagList) {
+        this.tagList = tagList;
+    }
 }

model/src/main/java/one/nem/lacerta/model/ListItemType.java

@@ -3,7 +3,8 @@ package one.nem.lacerta.model;
 public enum ListItemType {
 
     ITEM_TYPE_FOLDER(one.nem.lacerta.shared.ui.R.drawable.folder_24px),
-    ITEM_TYPE_DOCUMENT(one.nem.lacerta.shared.ui.R.drawable.description_24px);
+    ITEM_TYPE_DOCUMENT(one.nem.lacerta.shared.ui.R.drawable.description_24px),
+    ITEM_TYPE_ACTION_BACK(one.nem.lacerta.shared.ui.R.drawable.arrow_back_24px);
 
     private int iconId;
 

model/src/main/java/one/nem/lacerta/model/VcsLogModel.java

@@ -0,0 +1,64 @@
+package one.nem.lacerta.model;
+
+import java.util.Date;
+
+public class VcsLogModel {
+
+    String id;
+    String documentId;
+    String branchName;
+    String action;
+    Date createdAt;
+
+    public VcsLogModel(String id, String documentId, String branchName, String action, Date createdAt) {
+        this.id = id;
+        this.documentId = documentId;
+        this.branchName = branchName;
+        this.action = action;
+        this.createdAt = createdAt;
+    }
+
+    // Empty constructor
+    public VcsLogModel() {
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public String getDocumentId() {
+        return documentId;
+    }
+
+    public String getBranchName() {
+        return branchName;
+    }
+
+    public String getAction() {
+        return action;
+    }
+
+    public Date getCreatedAt() {
+        return createdAt;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public void setDocumentId(String documentId) {
+        this.documentId = documentId;
+    }
+
+    public void setBranchName(String branchName) {
+        this.branchName = branchName;
+    }
+
+    public void setAction(String action) {
+        this.action = action;
+    }
+
+    public void setCreatedAt(Date createdAt) {
+        this.createdAt = createdAt;
+    }
+}

model/src/main/java/one/nem/lacerta/model/document/DocumentMeta.java

@@ -32,16 +32,13 @@ public class DocumentMeta { // TODO-rca: JavaDoc対応
      */
     Date createdAt;
 
-    /**
-     * ドキュメントのタグ(DocumentTagインスタンスのリスト)
-     */
-    List<DocumentTag> tags;
-
     String parentId;
 
     String author;
 
-    String defaultBranch;
+    boolean isCombineChild;
+
+    boolean isCombineParent;
 
     // Constructor
 
@@ -51,49 +48,52 @@ public class DocumentMeta { // TODO-rca: JavaDoc対応
     public DocumentMeta(String title) {
         this.id = UUID.randomUUID().toString();
         this.title = title;
-        this.tags = new ArrayList<>();
-        this.author = ""; // TODO-rca: 作者のデフォルト値を設定できるようにする
-        this.defaultBranch = "main"; // TODO-rca: デフォルトブランチのデフォルト値を設定できるようにする
+        this.author = ""; // TODO-rca: 作者のデフォルト値を指定できるように
         this.parentId = null;
         this.updatedAt = new Date();
         this.createdAt = new Date();
+        this.isCombineChild = false;
+        this.isCombineParent = false;
     }
 
-    public DocumentMeta(String title, List<DocumentTag> tags, String author, String defaultBranch) {
+    public DocumentMeta(String title, String author) {
         this.id = UUID.randomUUID().toString();
         this.title = title;
-        this.tags = tags;
         this.author = author;
-        this.defaultBranch = defaultBranch;
+        this.isCombineChild = false;
+        this.isCombineParent = false;
     }
 
-    public DocumentMeta(String id, String title, List<DocumentTag> tags, String author, String defaultBranch) {
-        this.id = id;
-        this.title = title;
-        this.tags = tags;
-        this.author = author;
-        this.defaultBranch = defaultBranch;
-    }
-
-    public DocumentMeta(String id, String title, Date updatedAt, Date createdAt, List<DocumentTag> tags, String author, String defaultBranch) {
+    public DocumentMeta(String id, String title, Date updatedAt, Date createdAt, String author) {
         this.id = id;
         this.title = title;
         this.updatedAt = updatedAt;
         this.createdAt = createdAt;
-        this.tags = tags;
         this.author = author;
-        this.defaultBranch = defaultBranch;
+        this.isCombineChild = false;
+        this.isCombineParent = false;
     }
 
-    public DocumentMeta(String id, String title, Date updatedAt, Date createdAt, List<DocumentTag> tags, String parentId, String author, String defaultBranch) {
+    public DocumentMeta(String id, String title, Date updatedAt, Date createdAt, String parentId, String author) {
         this.id = id;
         this.title = title;
         this.updatedAt = updatedAt;
         this.createdAt = createdAt;
-        this.tags = tags;
         this.parentId = parentId;
         this.author = author;
-        this.defaultBranch = defaultBranch;
+        this.isCombineChild = false;
+        this.isCombineParent = false;
+    }
+
+    public DocumentMeta(String id, String title, Date updatedAt, Date createdAt, String parentId, String author, boolean isCombineChild, boolean isCombineParent) {
+        this.id = id;
+        this.title = title;
+        this.updatedAt = updatedAt;
+        this.createdAt = createdAt;
+        this.parentId = parentId;
+        this.author = author;
+        this.isCombineChild = isCombineChild;
+        this.isCombineParent = isCombineParent;
     }
 
     // Getter
@@ -126,24 +126,6 @@ public class DocumentMeta { // TODO-rca: JavaDoc対応
         return createdAt;
     }
 
-    /**
-     * ドキュメントのタグ(DocumentTagインスタンスのリスト)を取得する
-     */
-    public List<DocumentTag> getTags() {
-        return tags;
-    }
-
-    /**
-     * ドキュメントのタグ(DocumentTagインスタンスのリスト)のID(String)を取得する
-     */
-    public List<String> getTagIds() {
-        List<String> tagIds = new ArrayList<>();
-        for (DocumentTag tag : tags) {
-            tagIds.add(tag.getId());
-        }
-        return tagIds;
-    }
-
     /**
      * ドキュメントの親フォルダのID(String)を取得する
      */
@@ -159,10 +141,17 @@ public class DocumentMeta { // TODO-rca: JavaDoc対応
     }
 
     /**
-     * ドキュメントのデフォルトブランチ(String)を取得する
+     * ドキュメントの結合子フラグ(boolean)を取得する
      */
-    public String getDefaultBranch() {
-        return defaultBranch;
+    public boolean getIsCombineChild() {
+        return isCombineChild;
+    }
+
+    /**
+     * ドキュメントの結合親フラグ(boolean)を取得する
+     */
+    public boolean getIsCombineParent() {
+        return isCombineParent;
     }
 
     // Setter
@@ -199,14 +188,6 @@ public class DocumentMeta { // TODO-rca: JavaDoc対応
         this.createdAt = createdAt;
     }
 
-    /**
-     * ドキュメントのタグ(DocumentTagインスタンスのリスト)を設定する
-     * @param tags ドキュメントのタグ(DocumentTagインスタンスのリスト)
-     */
-    public void setTags(List<DocumentTag> tags) {
-        this.tags = tags;
-    }
-
     /**
      * ドキュメントの親フォルダのID(String)を設定する
      * @param parentId ドキュメントの親フォルダのID
@@ -224,11 +205,19 @@ public class DocumentMeta { // TODO-rca: JavaDoc対応
     }
 
     /**
-     * ドキュメントのデフォルトブランチ(String)を設定する
-     * @param defaultBranch ドキュメントのデフォルトブランチ
+     * ドキュメントの結合子フラグ(boolean)を設定する
+     * @param isCombineChild ドキュメントの結合子フラグ
      */
-    public void setDefaultBranch(String defaultBranch) {
-        this.defaultBranch = defaultBranch;
+    public void setIsCombineChild(boolean isCombineChild) {
+        this.isCombineChild = isCombineChild;
+    }
+
+    /**
+     * ドキュメントの結合親フラグ(boolean)を設定する
+     * @param isCombineParent ドキュメントの結合親フラグ
+     */
+    public void setIsCombineParent(boolean isCombineParent) {
+        this.isCombineParent = isCombineParent;
     }
 
     /**