1 files changed, 115 insertions, 0 deletions
diff --git a/src/com/android/photos/data/PhotoSetLoader.java b/src/com/android/photos/data/PhotoSetLoader.java
new file mode 100644
index 000000000..56c82c4a9
--- /dev/null
+++ b/src/com/android/photos/data/PhotoSetLoader.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.photos.data;
+
+import android.content.Context;
+import android.content.CursorLoader;
+import android.database.ContentObserver;
+import android.database.Cursor;
+import android.graphics.drawable.Drawable;
+import android.net.Uri;
+import android.provider.MediaStore;
+import android.provider.MediaStore.Files;
+import android.provider.MediaStore.Files.FileColumns;
+
+import com.android.photos.drawables.DataUriThumbnailDrawable;
+import com.android.photos.shims.LoaderCompatShim;
+
+import java.util.ArrayList;
+
+public class PhotoSetLoader extends CursorLoader implements LoaderCompatShim<Cursor> {
+
+    public static final String SUPPORTED_OPERATIONS = "supported_operations";
+
+    private static final Uri CONTENT_URI = Files.getContentUri("external");
+    public static final String[] PROJECTION = new String[] {
+        FileColumns._ID,
+        FileColumns.DATA,
+        FileColumns.WIDTH,
+        FileColumns.HEIGHT,
+        FileColumns.DATE_ADDED,
+        FileColumns.MEDIA_TYPE,
+        SUPPORTED_OPERATIONS,
+    };
+
+    private static final String SORT_ORDER = FileColumns.DATE_ADDED + " DESC";
+    private static final String SELECTION =
+            FileColumns.MEDIA_TYPE + " == " + FileColumns.MEDIA_TYPE_IMAGE
+            + " OR "
+            + FileColumns.MEDIA_TYPE + " == " + FileColumns.MEDIA_TYPE_VIDEO;
+
+    public static final int INDEX_ID = 0;
+    public static final int INDEX_DATA = 1;
+    public static final int INDEX_WIDTH = 2;
+    public static final int INDEX_HEIGHT = 3;
+    public static final int INDEX_DATE_ADDED = 4;
+    public static final int INDEX_MEDIA_TYPE = 5;
+    public static final int INDEX_SUPPORTED_OPERATIONS = 6;
+
+    private static final Uri GLOBAL_CONTENT_URI = Uri.parse("content://" + MediaStore.AUTHORITY + "/external/");
+    private final ContentObserver mGlobalObserver = new ForceLoadContentObserver();
+
+    public PhotoSetLoader(Context context) {
+        super(context, CONTENT_URI, PROJECTION, SELECTION, null, SORT_ORDER);
+    }
+
+    @Override
+    protected void onStartLoading() {
+        super.onStartLoading();
+        getContext().getContentResolver().registerContentObserver(GLOBAL_CONTENT_URI,
+                true, mGlobalObserver);
+    }
+
+    @Override
+    protected void onReset() {
+        super.onReset();
+        getContext().getContentResolver().unregisterContentObserver(mGlobalObserver);
+    }
+
+    @Override
+    public Drawable drawableForItem(Cursor item, Drawable recycle) {
+        DataUriThumbnailDrawable drawable = null;
+        if (recycle == null || !(recycle instanceof DataUriThumbnailDrawable)) {
+            drawable = new DataUriThumbnailDrawable();
+        } else {
+            drawable = (DataUriThumbnailDrawable) recycle;
+        }
+        drawable.setImage(item.getString(INDEX_DATA),
+                item.getInt(INDEX_WIDTH), item.getInt(INDEX_HEIGHT));
+        return drawable;
+    }
+
+    @Override
+    public Uri uriForItem(Cursor item) {
+        return null;
+    }
+
+    @Override
+    public ArrayList<Uri> urisForSubItems(Cursor item) {
+        return null;
+    }
+
+    @Override
+    public void deleteItemWithPath(Object path) {
+
+    }
+
+    @Override
+    public Object getPathForItem(Cursor item) {
+        return null;
+    }
+}