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      1 /*
      2  * Copyright (C) 2012 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 package com.android.gallery3d.app;
     17 
     18 import android.graphics.Rect;
     19 import android.os.Parcel;
     20 import android.os.Parcelable;
     21 
     22 import com.android.gallery3d.ui.ScreenNail;
     23 
     24 // This is the bridge to connect a PhotoPage to the external environment.
     25 public abstract class AppBridge implements Parcelable {
     26     @Override
     27     public int describeContents() {
     28         return 0;
     29     }
     30 
     31     @Override
     32     public void writeToParcel(Parcel dest, int flags) {
     33     }
     34 
     35     //////////////////////////////////////////////////////////////////////////
     36     //  These are requests sent from PhotoPage to the app
     37     //////////////////////////////////////////////////////////////////////////
     38 
     39     public abstract boolean isPanorama();
     40     public abstract boolean isStaticCamera();
     41     public abstract ScreenNail attachScreenNail();
     42     public abstract void detachScreenNail();
     43 
     44     // Return true if the tap is consumed.
     45     public abstract boolean onSingleTapUp(int x, int y);
     46 
     47     // This is used to notify that the screen nail will be drawn in full screen
     48     // or not in next draw() call.
     49     public abstract void onFullScreenChanged(boolean full);
     50 
     51     //////////////////////////////////////////////////////////////////////////
     52     //  These are requests send from app to PhotoPage
     53     //////////////////////////////////////////////////////////////////////////
     54 
     55     public interface Server {
     56         // Set the camera frame relative to GLRootView.
     57         public void setCameraRelativeFrame(Rect frame);
     58         // Switch to the previous or next picture using the capture animation.
     59         // The offset is -1 to switch to the previous picture, 1 to switch to
     60         // the next picture.
     61         public boolean switchWithCaptureAnimation(int offset);
     62         // Enable or disable the swiping gestures (the default is enabled).
     63         public void setSwipingEnabled(boolean enabled);
     64         // Notify that the ScreenNail is changed.
     65         public void notifyScreenNailChanged();
     66         // Add a new media item to the secure album.
     67         public void addSecureAlbumItem(boolean isVideo, int id);
     68     }
     69 
     70     // If server is null, the services are not available.
     71     public abstract void setServer(Server server);
     72 }
     73