/*
 * Copyright (C) 2012 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.gallery3d.app;

import android.graphics.Rect;
import android.os.Parcel;
import android.os.Parcelable;

import com.android.gallery3d.ui.ScreenNail;

// This is the bridge to connect a PhotoPage to the external environment.
public abstract class AppBridge implements Parcelable {
    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
    }

    //////////////////////////////////////////////////////////////////////////
    //  These are requests sent from PhotoPage to the app
    //////////////////////////////////////////////////////////////////////////

    public abstract boolean isPanorama();
    public abstract boolean isStaticCamera();
    public abstract ScreenNail attachScreenNail();
    public abstract void detachScreenNail();

    // Return true if the tap is consumed.
    public abstract boolean onSingleTapUp(int x, int y);

    // This is used to notify that the screen nail will be drawn in full screen
    // or not in next draw() call.
    public abstract void onFullScreenChanged(boolean full);

    //////////////////////////////////////////////////////////////////////////
    //  These are requests send from app to PhotoPage
    //////////////////////////////////////////////////////////////////////////

    public interface Server {
        // Set the camera frame relative to GLRootView.
        public void setCameraRelativeFrame(Rect frame);
        // Switch to the previous or next picture using the capture animation.
        // The offset is -1 to switch to the previous picture, 1 to switch to
        // the next picture.
        public boolean switchWithCaptureAnimation(int offset);
        // Enable or disable the swiping gestures (the default is enabled).
        public void setSwipingEnabled(boolean enabled);
        // Notify that the ScreenNail is changed.
        public void notifyScreenNailChanged();
        // Add a new media item to the secure album.
        public void addSecureAlbumItem(boolean isVideo, int id);
    }

    // If server is null, the services are not available.
    public abstract void setServer(Server server);
}