1 /* 2 * Copyright (C) 2009 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.app.Activity; 21 import android.content.Intent; 22 import android.content.res.AssetFileDescriptor; 23 import android.net.Uri; 24 import android.os.Build; 25 import android.os.Bundle; 26 import android.util.Log; 27 import android.widget.Toast; 28 29 import com.android.gallery3d.R; 30 import com.android.gallery3d.app.GalleryActivity; 31 import com.android.gallery3d.app.PhotoPage; 32 import com.android.gallery3d.common.ApiHelper; 33 34 public class WidgetClickHandler extends Activity { 35 private static final String TAG = "PhotoAppWidgetClickHandler"; 36 isValidDataUri(Uri dataUri)37 private boolean isValidDataUri(Uri dataUri) { 38 if (dataUri == null) return false; 39 try { 40 AssetFileDescriptor f = getContentResolver() 41 .openAssetFileDescriptor(dataUri, "r"); 42 f.close(); 43 return true; 44 } catch (Throwable e) { 45 Log.w(TAG, "cannot open uri: " + dataUri, e); 46 return false; 47 } 48 } 49 50 @Override 51 @TargetApi(ApiHelper.VERSION_CODES.HONEYCOMB) onCreate(Bundle savedState)52 protected void onCreate(Bundle savedState) { 53 super.onCreate(savedState); 54 // The behavior is changed in JB, refer to b/6384492 for more details 55 boolean tediousBack = Build.VERSION.SDK_INT >= ApiHelper.VERSION_CODES.JELLY_BEAN; 56 Uri uri = getIntent().getData(); 57 Intent intent; 58 if (isValidDataUri(uri)) { 59 intent = new Intent(Intent.ACTION_VIEW, uri); 60 if (tediousBack) { 61 intent.putExtra(PhotoPage.KEY_TREAT_BACK_AS_UP, true); 62 } 63 } else { 64 Toast.makeText(this, 65 R.string.no_such_item, Toast.LENGTH_LONG).show(); 66 intent = new Intent(this, GalleryActivity.class); 67 } 68 if (tediousBack) { 69 intent.setFlags( 70 Intent.FLAG_ACTIVITY_NEW_TASK | 71 Intent.FLAG_ACTIVITY_CLEAR_TASK | 72 Intent.FLAG_ACTIVITY_TASK_ON_HOME); 73 } 74 startActivity(intent); 75 finish(); 76 } 77 } 78