1 /*
2  * Copyright (C) 2013 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.camera.data;
18 
19 import android.content.Context;
20 import android.net.Uri;
21 
22 import com.android.camera.util.PhotoSphereHelper;
23 
24 /**
25  * This class breaks out the off-thread panorama support.
26  */
27 public class PanoramaMetadataLoader {
28     /**
29      * Extracts panorama metadata from the item with the given URI and fills the
30      * {@code metadata}.
31      */
loadPanoramaMetadata(final Context context, Uri contentUri, Metadata metadata)32     public static boolean loadPanoramaMetadata(final Context context, Uri contentUri,
33             Metadata metadata) {
34         PhotoSphereHelper.PanoramaMetadata panoramaMetadata =
35               PhotoSphereHelper.getPanoramaMetadata(context, contentUri);
36         // Note: The use of '==' here is in purpose as this is a singleton that
37         // is returned if this is not a panorama, so pointer comparison works.
38         if (panoramaMetadata == null || panoramaMetadata == PhotoSphereHelper.NOT_PANORAMA) {
39             return false;
40         }
41 
42         metadata.setPanorama(true);
43         metadata.setPanorama360(panoramaMetadata.mIsPanorama360);
44         metadata.setUsePanoramaViewer(panoramaMetadata.mUsePanoramaViewer);
45 
46         return true;
47     }
48 }
49