1 files changed, 91 insertions, 0 deletions
diff --git a/src/com/android/camera/data/LocalDataAdapter.java b/src/com/android/camera/data/LocalDataAdapter.java
new file mode 100644
index 000000000..3b4f07dea
--- /dev/null
+++ b/src/com/android/camera/data/LocalDataAdapter.java
@@ -0,0 +1,91 @@
+/*
+ * 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.camera.data;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.net.Uri;
+
+import static com.android.camera.ui.FilmStripView.DataAdapter;
+
+/**
+ * An interface which extends {@link DataAdapter} and defines operations on
+ * the data in the local camera folder.
+ */
+public interface LocalDataAdapter extends DataAdapter {
+
+    /**
+     * Request for loading the local data.
+     *
+     * @param resolver  {@link ContentResolver} used for data loading.
+     */
+    public void requestLoad(ContentResolver resolver);
+
+    /**
+     * Remove the data in the local camera folder.
+     *
+     * @param context       {@link Context} used to remove the data.
+     * @param dataID  ID of data to be deleted.
+     */
+    public void removeData(Context context, int dataID);
+
+    /**
+     * Add new local video data.
+     *
+     * @param resolver  {@link ContentResolver} used to add the data.
+     * @param uri       {@link Uri} of the video.
+     */
+    public void addNewVideo(ContentResolver resolver, Uri uri);
+
+    /**
+     * Adds new local photo data.
+     *
+     * @param resolver  {@link ContentResolver} used to add the data.
+     * @param uri       {@link Uri} of the photo.
+     */
+    public void addNewPhoto(ContentResolver resolver, Uri uri);
+
+    /**
+     * Finds the {@link LocalData} of the specified content Uri.
+     *
+     * @param Uri  The content Uri of the {@link LocalData}.
+     * @return     The index of the data. {@code -1} if not found.
+     */
+    public int findDataByContentUri(Uri uri);
+
+    /**
+     * Clears all the data currently loaded.
+     */
+    public void flush();
+
+    /**
+     * Executes the deletion task. Delete the data waiting in the deletion queue.
+     *
+     * @param context The {@link Context} from the caller.
+     * @return        {@code true} if task has been executed, {@code false}
+     *                otherwise.
+     */
+    public boolean executeDeletion(Context context);
+
+    /**
+     * Undo a deletion. If there is any data waiting to be deleted in the queue,
+     * move it out of the deletion queue.
+     *
+     * @return {@code true} if there are items in the queue, {@code false} otherwise.
+     */
+    public boolean undoDataRemoval();
+}