| /* |
| * 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.Context; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.view.View; |
| |
| import com.android.camera.debug.Log; |
| import com.android.camera.filmstrip.DataAdapter; |
| import com.android.camera.filmstrip.ImageData; |
| |
| /** |
| * A {@link LocalDataAdapter} which puts a {@link LocalData} fixed at the first |
| * position. It's done by combining a {@link LocalData} and another |
| * {@link LocalDataAdapter}. |
| */ |
| public class FixedFirstDataAdapter extends AbstractLocalDataAdapterWrapper |
| implements DataAdapter.Listener { |
| |
| @SuppressWarnings("unused") |
| private static final Log.Tag TAG = new Log.Tag("FixedFirstDataAdpt"); |
| |
| private LocalData mFirstData; |
| private Listener mListener; |
| |
| /** |
| * Constructor. |
| * |
| * @param context Valid Android context. |
| * @param wrappedAdapter The {@link LocalDataAdapter} to be wrapped. |
| * @param firstData The {@link LocalData} to be placed at the first |
| * position. |
| */ |
| public FixedFirstDataAdapter( |
| Context context, |
| LocalDataAdapter wrappedAdapter, |
| LocalData firstData) { |
| super(context, wrappedAdapter); |
| if (firstData == null) { |
| throw new AssertionError("data is null"); |
| } |
| mFirstData = firstData; |
| } |
| |
| @Override |
| public LocalData getLocalData(int dataID) { |
| if (dataID == 0) { |
| return mFirstData; |
| } |
| return mAdapter.getLocalData(dataID - 1); |
| } |
| |
| @Override |
| public void removeData(int dataID) { |
| if (dataID > 0) { |
| mAdapter.removeData(dataID - 1); |
| } |
| } |
| |
| @Override |
| public int findDataByContentUri(Uri uri) { |
| int pos = mAdapter.findDataByContentUri(uri); |
| if (pos != -1) { |
| return pos + 1; |
| } |
| return -1; |
| } |
| |
| @Override |
| public void updateData(int pos, LocalData data) { |
| if (pos == 0) { |
| mFirstData = data; |
| if (mListener != null) { |
| mListener.onDataUpdated(new UpdateReporter() { |
| @Override |
| public boolean isDataRemoved(int dataID) { |
| return false; |
| } |
| |
| @Override |
| public boolean isDataUpdated(int dataID) { |
| return (dataID == 0); |
| } |
| }); |
| } |
| } else { |
| mAdapter.updateData(pos - 1, data); |
| } |
| } |
| |
| @Override |
| public int getTotalNumber() { |
| return (mAdapter.getTotalNumber() + 1); |
| } |
| |
| @Override |
| public View getView(Context context, View recycled, int dataID) { |
| if (dataID == 0) { |
| return mFirstData.getView( |
| context, recycled, mSuggestedWidth, mSuggestedHeight, 0, null, false); |
| } |
| return mAdapter.getView(context, recycled, dataID - 1); |
| } |
| |
| @Override |
| public int getItemViewType(int dataId) { |
| if (dataId == 0) { |
| return mFirstData.getItemViewType().ordinal(); |
| } |
| return mAdapter.getItemViewType(dataId); |
| } |
| |
| @Override |
| public void resizeView(Context context, int dataID, View view, int w, int h) { |
| // Do nothing. |
| } |
| |
| @Override |
| public ImageData getImageData(int dataID) { |
| if (dataID == 0) { |
| return mFirstData; |
| } |
| return mAdapter.getImageData(dataID - 1); |
| } |
| |
| @Override |
| public void setListener(Listener listener) { |
| mListener = listener; |
| mAdapter.setListener((listener == null) ? null : this); |
| // The first data is always there. Thus, When the listener is set, |
| // we should call listener.onDataLoaded(). |
| if (mListener != null) { |
| mListener.onDataLoaded(); |
| } |
| } |
| |
| @Override |
| public boolean canSwipeInFullScreen(int dataID) { |
| if (dataID == 0) { |
| return mFirstData.canSwipeInFullScreen(); |
| } |
| return mAdapter.canSwipeInFullScreen(dataID - 1); |
| } |
| |
| @Override |
| public void onDataLoaded() { |
| if (mListener == null) { |
| return; |
| } |
| mListener.onDataUpdated(new UpdateReporter() { |
| @Override |
| public boolean isDataRemoved(int dataID) { |
| return false; |
| } |
| |
| @Override |
| public boolean isDataUpdated(int dataID) { |
| return (dataID != 0); |
| } |
| }); |
| } |
| |
| @Override |
| public void onDataUpdated(final UpdateReporter reporter) { |
| mListener.onDataUpdated(new UpdateReporter() { |
| @Override |
| public boolean isDataRemoved(int dataID) { |
| return (dataID != 0) && reporter.isDataRemoved(dataID - 1); |
| } |
| |
| @Override |
| public boolean isDataUpdated(int dataID) { |
| return (dataID != 0) && reporter.isDataUpdated(dataID - 1); |
| } |
| }); |
| } |
| |
| @Override |
| public void onDataInserted(int dataID, ImageData data) { |
| mListener.onDataInserted(dataID + 1, data); |
| } |
| |
| @Override |
| public void onDataRemoved(int dataID, ImageData data) { |
| mListener.onDataRemoved(dataID + 1, data); |
| } |
| |
| @Override |
| public AsyncTask updateMetadata(int dataId) { |
| if (dataId > 0) { |
| return mAdapter.updateMetadata(dataId - 1); |
| } else { |
| MetadataLoader.loadMetadata(mContext, mFirstData); |
| } |
| return null; |
| } |
| |
| @Override |
| public boolean isMetadataUpdated(int dataId) { |
| if (dataId > 0) { |
| return mAdapter.isMetadataUpdated(dataId - 1); |
| } else { |
| return mFirstData.isMetadataUpdated(); |
| } |
| } |
| } |