Home | History | Annotate | Download | only in gadget 
      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.gallery3d.gadget;
     18 
     19 import android.annotation.TargetApi;
     20 import android.appwidget.AppWidgetManager;
     21 import android.content.Intent;
     22 import android.graphics.Bitmap;
     23 import android.net.Uri;
     24 import android.widget.RemoteViews;
     25 import android.widget.RemoteViewsService;
     26 
     27 import com.android.gallery3d.R;
     28 import com.android.gallery3d.app.GalleryApp;
     29 import com.android.gallery3d.common.ApiHelper;
     30 import com.android.gallery3d.data.ContentListener;
     31 
     32 @TargetApi(ApiHelper.VERSION_CODES.HONEYCOMB)
     33 public class WidgetService extends RemoteViewsService {
     34 
     35     @SuppressWarnings("unused")
     36     private static final String TAG = "GalleryAppWidgetService";
     37 
     38     public static final String EXTRA_WIDGET_TYPE = "widget-type";
     39     public static final String EXTRA_ALBUM_PATH = "album-path";
     40 
     41     @Override
     42     public RemoteViewsFactory onGetViewFactory(Intent intent) {
     43         int id = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
     44                 AppWidgetManager.INVALID_APPWIDGET_ID);
     45         int type = intent.getIntExtra(EXTRA_WIDGET_TYPE, 0);
     46         String albumPath = intent.getStringExtra(EXTRA_ALBUM_PATH);
     47 
     48         return new PhotoRVFactory((GalleryApp) getApplicationContext(),
     49                 id, type, albumPath);
     50     }
     51 
     52     private static class PhotoRVFactory implements
     53             RemoteViewsService.RemoteViewsFactory, ContentListener {
     54 
     55         private final int mAppWidgetId;
     56         private final int mType;
     57         private final String mAlbumPath;
     58         private final GalleryApp mApp;
     59 
     60         private WidgetSource mSource;
     61 
     62         public PhotoRVFactory(GalleryApp app, int id, int type, String albumPath) {
     63             mApp = app;
     64             mAppWidgetId = id;
     65             mType = type;
     66             mAlbumPath = albumPath;
     67         }
     68 
     69         @Override
     70         public void onCreate() {
     71             if (mType == WidgetDatabaseHelper.TYPE_ALBUM) {
     72                 mSource = new MediaSetSource(mApp.getDataManager(), mAlbumPath);
     73             } else {
     74                 mSource = new LocalPhotoSource(mApp.getAndroidContext());
     75             }
     76             mSource.setContentListener(this);
     77             AppWidgetManager.getInstance(mApp.getAndroidContext())
     78                     .notifyAppWidgetViewDataChanged(
     79                     mAppWidgetId, R.id.appwidget_stack_view);
     80         }
     81 
     82         @Override
     83         public void onDestroy() {
     84             mSource.close();
     85             mSource = null;
     86         }
     87 
     88         @Override
     89         public int getCount() {
     90             return mSource.size();
     91         }
     92 
     93         @Override
     94         public long getItemId(int position) {
     95             return position;
     96         }
     97 
     98         @Override
     99         public int getViewTypeCount() {
    100             return 2;
    101         }
    102 
    103         @Override
    104         public boolean hasStableIds() {
    105             return true;
    106         }
    107 
    108         @Override
    109         public RemoteViews getLoadingView() {
    110             RemoteViews rv = new RemoteViews(
    111                     mApp.getAndroidContext().getPackageName(),
    112                     R.layout.appwidget_loading_item);
    113             rv.setProgressBar(R.id.appwidget_loading_item, 0, 0, true);
    114             return rv;
    115         }
    116 
    117         @Override
    118         public RemoteViews getViewAt(int position) {
    119             Bitmap bitmap = mSource.getImage(position);
    120             if (bitmap == null) return getLoadingView();
    121             RemoteViews views = new RemoteViews(
    122                     mApp.getAndroidContext().getPackageName(),
    123                     R.layout.appwidget_photo_item);
    124             views.setImageViewBitmap(R.id.appwidget_photo_item, bitmap);
    125             views.setOnClickFillInIntent(R.id.appwidget_photo_item, new Intent()
    126                     .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
    127                     .setData(mSource.getContentUri(position)));
    128             return views;
    129         }
    130 
    131         @Override
    132         public void onDataSetChanged() {
    133             mSource.reload();
    134         }
    135 
    136         @Override
    137         public void onContentDirty() {
    138             AppWidgetManager.getInstance(mApp.getAndroidContext())
    139                     .notifyAppWidgetViewDataChanged(
    140                     mAppWidgetId, R.id.appwidget_stack_view);
    141         }
    142     }
    143 }
    144