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      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      */
     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