1 files changed, 100 insertions, 0 deletions
diff --git a/app/src/main/java/it/niedermann/nextcloud/deck/ui/card/attachments/picker/GalleryAdapter.java b/app/src/main/java/it/niedermann/nextcloud/deck/ui/card/attachments/picker/GalleryAdapter.java
new file mode 100644
index 000000000..658eb1ee3
--- /dev/null
+++ b/app/src/main/java/it/niedermann/nextcloud/deck/ui/card/attachments/picker/GalleryAdapter.java
@@ -0,0 +1,100 @@
+package it.niedermann.nextcloud.deck.ui.card.attachments.picker;
+
+import android.annotation.SuppressLint;
+import android.content.ContentUris;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.net.Uri;
+import android.os.Handler;
+import android.os.Looper;
+import android.provider.MediaStore;
+import android.util.Pair;
+import android.util.Size;
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.lifecycle.LifecycleOwner;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.bumptech.glide.RequestBuilder;
+
+import java.io.IOException;
+import java.util.function.BiConsumer;
+
+import it.niedermann.nextcloud.deck.databinding.ItemAttachmentImageBinding;
+import it.niedermann.nextcloud.deck.databinding.ItemPhotoPreviewBinding;
+
+import static android.os.Build.VERSION.SDK_INT;
+import static android.os.Build.VERSION_CODES.Q;
+import static android.provider.BaseColumns._ID;
+import static android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
+
+public class GalleryAdapter extends AbstractCursorPickerAdapter<RecyclerView.ViewHolder> {
+
+    @NonNull
+    private final LifecycleOwner lifecycleOwner;
+
+    @SuppressLint("InlinedApi")
+    private static final String sortOrder = (SDK_INT >= Q)
+            ? MediaStore.Images.Media.DATE_TAKEN
+            : MediaStore.Images.Media.DATE_ADDED;
+
+    public GalleryAdapter(@NonNull Context context, @NonNull BiConsumer<Uri, Pair<String, RequestBuilder<?>>> onSelect, @NonNull Runnable openNativePicker, @NonNull LifecycleOwner lifecycleOwner) {
+        super(context, onSelect, openNativePicker, EXTERNAL_CONTENT_URI, _ID, sortOrder + " DESC");
+        this.lifecycleOwner = lifecycleOwner;
+        notifyItemRangeInserted(0, getItemCount() + 1);
+    }
+
+    @NonNull
+    @Override
+    public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        switch (viewType) {
+            case VIEW_TYPE_ITEM_NATIVE:
+                return new GalleryPhotoPreviewItemViewHolder(ItemPhotoPreviewBinding.inflate(LayoutInflater.from(parent.getContext()), parent, false));
+            case VIEW_TYPE_ITEM:
+                return new GalleryItemViewHolder(ItemAttachmentImageBinding.inflate(LayoutInflater.from(parent.getContext()), parent, false));
+            default:
+                throw new IllegalStateException("Unknown viewType " + viewType);
+        }
+
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {
+        switch (getItemViewType(position)) {
+            case VIEW_TYPE_ITEM_NATIVE: {
+                ((GalleryPhotoPreviewItemViewHolder) holder).bind(openNativePicker, lifecycleOwner);
+                break;
+            }
+            case VIEW_TYPE_ITEM: {
+                final long id = getItemId(position);
+                bindExecutor.execute(() -> {
+                    try {
+                        final Bitmap thumbnail;
+                        if (SDK_INT >= Q) {
+                            thumbnail = contentResolver.loadThumbnail(ContentUris.withAppendedId(
+                                    EXTERNAL_CONTENT_URI, id), new Size(512, 384), null);
+                        } else {
+                            thumbnail = MediaStore.Images.Thumbnails.getThumbnail(
+                                    contentResolver, id,
+                                    MediaStore.Images.Thumbnails.MINI_KIND, null);
+                        }
+                        new Handler(Looper.getMainLooper()).post(() -> ((GalleryItemViewHolder) holder).bind(ContentUris.withAppendedId(
+                                EXTERNAL_CONTENT_URI, id), thumbnail, onSelect));
+                    } catch (IOException ignored) {
+                        new Handler(Looper.getMainLooper()).post(((GalleryItemViewHolder) holder)::bindError);
+                    }
+                });
+            }
+        }
+    }
+
+    @Override
+    public void onViewDetachedFromWindow(@NonNull RecyclerView.ViewHolder holder) {
+        super.onViewDetachedFromWindow(holder);
+        if (holder instanceof GalleryPhotoPreviewItemViewHolder) {
+            ((GalleryPhotoPreviewItemViewHolder) holder).unbind();
+        }
+    }
+}