| /* |
| * 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; |
| |
| import android.app.Service; |
| import android.content.ContentResolver; |
| import android.content.Intent; |
| import android.location.Location; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.os.Binder; |
| import android.os.IBinder; |
| import android.util.Log; |
| |
| import java.util.ArrayList; |
| |
| public class MediaSaveService extends Service { |
| private static final int SAVE_TASK_LIMIT = 3; |
| private static final String TAG = MediaSaveService.class.getSimpleName(); |
| |
| private final IBinder mBinder = new LocalBinder(); |
| private int mTaskNumber; |
| private Listener mListener; |
| |
| interface Listener { |
| public void onQueueAvailable(); |
| public void onQueueFull(); |
| } |
| |
| interface OnMediaSavedListener { |
| public void onMediaSaved(Uri uri); |
| } |
| |
| class LocalBinder extends Binder { |
| public MediaSaveService getService() { |
| return MediaSaveService.this; |
| } |
| } |
| |
| @Override |
| public IBinder onBind(Intent intent) { |
| return mBinder; |
| } |
| |
| @Override |
| public int onStartCommand(Intent intent, int flag, int startId) { |
| return START_STICKY; |
| } |
| |
| @Override |
| public void onDestroy() { |
| } |
| |
| @Override |
| public void onCreate() { |
| mTaskNumber = 0; |
| } |
| |
| public boolean isQueueFull() { |
| return (mTaskNumber >= SAVE_TASK_LIMIT); |
| } |
| |
| // Runs in main thread |
| public void addImage(final byte[] data, String title, long date, Location loc, |
| int width, int height, int orientation, |
| OnMediaSavedListener l, ContentResolver resolver) { |
| if (isQueueFull()) { |
| Log.e(TAG, "Cannot add image when the queue is full"); |
| return; |
| } |
| SaveTask t = new SaveTask(data, title, date, (loc == null) ? null : new Location(loc), |
| width, height, orientation, resolver, l); |
| |
| mTaskNumber++; |
| if (isQueueFull()) { |
| onQueueFull(); |
| } |
| t.execute(); |
| } |
| |
| public void setListener(Listener l) { |
| mListener = l; |
| if (l == null) return; |
| if (isQueueFull()) { |
| l.onQueueFull(); |
| } else { |
| l.onQueueAvailable(); |
| } |
| } |
| |
| private void onQueueFull() { |
| if (mListener != null) mListener.onQueueFull(); |
| } |
| |
| private void onQueueAvailable() { |
| if (mListener != null) mListener.onQueueAvailable(); |
| } |
| |
| private class SaveTask extends AsyncTask <Void, Void, Uri> { |
| private byte[] data; |
| private String title; |
| private long date; |
| private Location loc; |
| private int width, height; |
| private int orientation; |
| private ContentResolver resolver; |
| private OnMediaSavedListener listener; |
| |
| public SaveTask(byte[] data, String title, long date, Location loc, |
| int width, int height, int orientation, ContentResolver resolver, |
| OnMediaSavedListener listener) { |
| this.data = data; |
| this.title = title; |
| this.date = date; |
| this.loc = loc; |
| this.width = width; |
| this.height = height; |
| this.orientation = orientation; |
| this.resolver = resolver; |
| this.listener = listener; |
| } |
| |
| @Override |
| protected void onPreExecute() { |
| // do nothing. |
| } |
| |
| @Override |
| protected Uri doInBackground(Void... v) { |
| return Storage.addImage( |
| resolver, title, date, loc, orientation, data, width, height); |
| } |
| |
| @Override |
| protected void onPostExecute(Uri uri) { |
| listener.onMediaSaved(uri); |
| mTaskNumber--; |
| if (mTaskNumber == SAVE_TASK_LIMIT - 1) onQueueAvailable(); |
| } |
| } |
| } |