FilePickerDialogBase実装 WIP

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

@@ -0,0 +1,101 @@
+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.component.common.LacertaSelectDirDialogInternalEventListener;
+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> {
+
+
+    private LibraryItemPage libraryItemPage;
+    LacertaSelectDirDialogInternalEventListener listener;
+
+    public LacertaFilePickerAdapterBase(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 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.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 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 +1,60 @@
+package one.nem.lacerta.component.common.picker.base;
+
+import android.app.Dialog;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.TextView;
+
+import androidx.fragment.app.DialogFragment;
+
+import com.google.android.material.dialog.MaterialAlertDialogBuilder;
+
+import javax.inject.Inject;
+
+import one.nem.lacerta.component.common.LacertaSelectDirDialog;
+import one.nem.lacerta.component.common.R;
+import one.nem.lacerta.component.common.SelectDirDialogItemAdapter;
+import one.nem.lacerta.data.LacertaLibrary;
+import one.nem.lacerta.model.LibraryItemPage;
+import one.nem.lacerta.model.ListItemType;
+import one.nem.lacerta.utils.FeatureSwitch;
+import one.nem.lacerta.utils.LacertaLogger;
+
+public class LacertaFilePickerDialogBase extends DialogFragment {
+
+    @Inject
+    LacertaLibrary lacertaLibrary;
+
+    @Inject
+    LacertaLogger logger;
+
+
+    // Methods
+    public void updateList(LacertaFilePickerAdapterBase adapter, LibraryItemPage libraryItemPage) {
+        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("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());
+        }
+    }
+}