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/*
* 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);
/**
* Returns the specified {@link LocalData}.
*
* @param dataID The ID of the {@link LocalData} to get.
* @return The {@link LocalData} to get. {@code null} if not available.
*/
public LocalData getLocalData(int dataID);
/**
* 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);
/**
* Refresh the data by {@link Uri}.
*
* @param resolver {@link ContentResolver} used to refresh the data.
* @param uri The {@link Uri} of the data to refresh.
*/
public void refresh(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();
/**
* Update the data in a specific position.
*
* @param pos The position of the data to be updated.
* @param data The new data.
*/
public void updateData(int pos, LocalData data);
/** Insert a data. */
public void insertData(LocalData data);
}
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