| /* |
| * Copyright (C) 2008 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.settings; |
| |
| import android.app.Activity; |
| import android.appwidget.AppWidgetManager; |
| import android.content.ContentResolver; |
| import android.content.ContentUris; |
| import android.content.ContentValues; |
| import android.content.Intent; |
| import android.content.ComponentName; |
| import android.database.Cursor; |
| import android.database.SQLException; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.provider.BaseColumns; |
| import android.util.Log; |
| |
| import java.util.ArrayList; |
| |
| public class LauncherAppWidgetBinder extends Activity { |
| private static final String TAG = "LauncherAppWidgetBinder"; |
| private static final boolean LOGD = true; |
| |
| static final String AUTHORITY = "com.android.launcher.settings"; |
| static final String TABLE_FAVORITES = "favorites"; |
| |
| static final String EXTRA_BIND_SOURCES = "com.android.launcher.settings.bindsources"; |
| static final String EXTRA_BIND_TARGETS = "com.android.launcher.settings.bindtargets"; |
| |
| static final String EXTRA_APPWIDGET_BITMAPS = "com.android.camera.appwidgetbitmaps"; |
| |
| /** |
| * {@link ContentProvider} constants pulled over from Launcher |
| */ |
| static final class LauncherProvider implements BaseColumns { |
| static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/" + TABLE_FAVORITES); |
| |
| static final String ITEM_TYPE = "itemType"; |
| static final String APPWIDGET_ID = "appWidgetId"; |
| static final String ICON = "icon"; |
| |
| static final int ITEM_TYPE_APPWIDGET = 4; |
| static final int ITEM_TYPE_WIDGET_CLOCK = 1000; |
| static final int ITEM_TYPE_WIDGET_SEARCH = 1001; |
| static final int ITEM_TYPE_WIDGET_PHOTO_FRAME = 1002; |
| } |
| |
| static final String[] BIND_PROJECTION = new String[] { |
| LauncherProvider._ID, |
| LauncherProvider.ITEM_TYPE, |
| LauncherProvider.APPWIDGET_ID, |
| LauncherProvider.ICON, |
| }; |
| |
| static final int INDEX_ID = 0; |
| static final int INDEX_ITEM_TYPE = 1; |
| static final int INDEX_APPWIDGET_ID = 2; |
| static final int INDEX_ICON = 3; |
| |
| static final ComponentName BIND_PHOTO_APPWIDGET = new ComponentName("com.android.camera", |
| "com.android.camera.PhotoAppWidgetBind"); |
| |
| @Override |
| protected void onCreate(Bundle icicle) { |
| super.onCreate(icicle); |
| finish(); |
| |
| // This helper reaches into the Launcher database and binds any unlinked |
| // widgets. If will remove any items that can't be bound successfully. |
| // We protect this binder at the manifest level by asserting the caller |
| // has the Launcher WRITE_SETTINGS permission. |
| |
| final Intent intent = getIntent(); |
| final Bundle extras = intent.getExtras(); |
| |
| int[] bindSources = null; |
| ArrayList<ComponentName> bindTargets = null; |
| Exception exception = null; |
| |
| try { |
| bindSources = extras.getIntArray(EXTRA_BIND_SOURCES); |
| bindTargets = intent.getParcelableArrayListExtra(EXTRA_BIND_TARGETS); |
| } catch (ClassCastException ex) { |
| exception = ex; |
| } |
| |
| if (exception != null || bindSources == null || bindTargets == null || |
| bindSources.length != bindTargets.size()) { |
| Log.w(TAG, "Problem reading incoming bind request, or invalid request", exception); |
| return; |
| } |
| |
| final String selectWhere = buildOrWhereString(LauncherProvider.ITEM_TYPE, bindSources); |
| |
| final ContentResolver resolver = getContentResolver(); |
| final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(this); |
| |
| boolean foundPhotoAppWidgets = false; |
| final ArrayList<Integer> photoAppWidgetIds = new ArrayList<Integer>(); |
| final ArrayList<Bitmap> photoBitmaps = new ArrayList<Bitmap>(); |
| |
| Cursor c = null; |
| |
| try { |
| c = resolver.query(LauncherProvider.CONTENT_URI, |
| BIND_PROJECTION, selectWhere, null, null); |
| |
| if (LOGD) Log.d(TAG, "found bind cursor count="+c.getCount()); |
| |
| final ContentValues values = new ContentValues(); |
| while (c != null && c.moveToNext()) { |
| long favoriteId = c.getLong(INDEX_ID); |
| int itemType = c.getInt(INDEX_ITEM_TYPE); |
| int appWidgetId = c.getInt(INDEX_APPWIDGET_ID); |
| byte[] iconData = c.getBlob(INDEX_ICON); |
| |
| // Find the binding target for this type |
| ComponentName targetAppWidget = null; |
| for (int i = 0; i < bindSources.length; i++) { |
| if (bindSources[i] == itemType) { |
| targetAppWidget = bindTargets.get(i); |
| break; |
| } |
| } |
| |
| if (LOGD) Log.d(TAG, "found matching targetAppWidget="+targetAppWidget.toString()+" for favoriteId="+favoriteId); |
| |
| boolean bindSuccess = false; |
| try { |
| appWidgetManager.bindAppWidgetId(appWidgetId, targetAppWidget); |
| bindSuccess = true; |
| } catch (RuntimeException ex) { |
| Log.w(TAG, "Problem binding widget", ex); |
| } |
| |
| // Handle special case of photo widget by loading bitmap and |
| // preparing for later binding |
| if (bindSuccess && iconData != null && |
| itemType == LauncherProvider.ITEM_TYPE_WIDGET_PHOTO_FRAME) { |
| Bitmap bitmap = BitmapFactory.decodeByteArray(iconData, 0, iconData.length); |
| |
| photoAppWidgetIds.add(appWidgetId); |
| photoBitmaps.add(bitmap); |
| foundPhotoAppWidgets = true; |
| } |
| |
| if (LOGD) Log.d(TAG, "after finished, success="+bindSuccess); |
| |
| // Depending on success, update launcher or remove item |
| Uri favoritesUri = ContentUris.withAppendedId(LauncherProvider.CONTENT_URI, favoriteId); |
| if (bindSuccess) { |
| values.clear(); |
| values.put(LauncherProvider.ITEM_TYPE, LauncherProvider.ITEM_TYPE_APPWIDGET); |
| values.putNull(LauncherProvider.ICON); |
| resolver.update(favoritesUri, values, null, null); |
| } else { |
| resolver.delete(favoritesUri, null, null); |
| } |
| |
| } |
| } catch (SQLException ex) { |
| Log.w(TAG, "Problem while binding appWidgetIds for Launcher", ex); |
| } finally { |
| if (c != null) { |
| c.close(); |
| } |
| } |
| |
| if (foundPhotoAppWidgets) { |
| // Convert appWidgetIds into int[] |
| final int N = photoAppWidgetIds.size(); |
| final int[] photoAppWidgetIdsArray = new int[N]; |
| for (int i = 0; i < N; i++) { |
| photoAppWidgetIdsArray[i] = photoAppWidgetIds.get(i); |
| } |
| |
| // Launch intent over to handle bitmap binding, but we don't need to |
| // wait around for the result. |
| final Intent bindIntent = new Intent(); |
| bindIntent.setComponent(BIND_PHOTO_APPWIDGET); |
| |
| final Bundle bindExtras = new Bundle(); |
| bindExtras.putIntArray(AppWidgetManager.EXTRA_APPWIDGET_IDS, photoAppWidgetIdsArray); |
| bindExtras.putParcelableArrayList(EXTRA_APPWIDGET_BITMAPS, photoBitmaps); |
| bindIntent.putExtras(bindExtras); |
| |
| startActivity(bindIntent); |
| } |
| |
| if (LOGD) Log.d(TAG, "completely finished with binding for Launcher"); |
| } |
| |
| /** |
| * Build a query string that will match any row where the column matches |
| * anything in the values list. |
| */ |
| static String buildOrWhereString(String column, int[] values) { |
| StringBuilder selectWhere = new StringBuilder(); |
| for (int i = values.length - 1; i >= 0; i--) { |
| selectWhere.append(column).append("=").append(values[i]); |
| if (i > 0) { |
| selectWhere.append(" OR "); |
| } |
| } |
| return selectWhere.toString(); |
| } |
| |
| } |