src/xwalk/runtime/android/core_internal/src/org/xwalk/core/internal/extension/api/presentation/XWalkPresentationContent.java

   1 // Copyright (c) 2013 Intel Corporation. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 package org.xwalk.core.internal.extension.api.presentation;
   6
   7 import java.lang.ref.WeakReference;
   8
   9 import android.app.Activity;
  10 import android.content.Context;
  11 import android.os.Bundle;
  12 import android.view.View;
  13
  14 import org.xwalk.core.internal.XWalkClient;
  15 import org.xwalk.core.internal.XWalkUIClientInternal;
  16 import org.xwalk.core.internal.XWalkViewInternal;
  17
  18 /**
  19  * Represents the content to be presented on the secondary display.
  20  */
  21 public class XWalkPresentationContent {
  22     public final int INVALID_PRESENTATION_ID = -1;
  23
  24     private int mPresentationId = INVALID_PRESENTATION_ID;
  25     private XWalkViewInternal mContentView;
  26     private Context mContext;
  27     private WeakReference<Activity> mActivity;
  28     private PresentationDelegate mDelegate;
  29
  30
  31     public XWalkPresentationContent(
  32             Context context, WeakReference<Activity> activity, PresentationDelegate delegate) {
  33         mContext = context;
  34         mActivity = activity;
  35         mDelegate = delegate;
  36     }
  37
  38     public void load(final String url) {
  39         Activity activity = mActivity.get();
  40         if (activity == null) return;
  41
  42         if (mContentView == null) {
  43             mContentView = new XWalkViewInternal(mContext, activity);
  44             final XWalkUIClientInternal xWalkUIClient = new XWalkUIClientInternal(mContentView) {
  45                 @Override
  46                 public void onJavascriptCloseWindow(XWalkViewInternal view) {
  47                     // The content was closed already. Web need to invalidate the
  48                     // presentation id now.
  49                     mPresentationId = INVALID_PRESENTATION_ID;
  50                     onContentClosed();
  51                 }
  52
  53                 @Override
  54                 public void onPageLoadStopped(
  55                         XWalkViewInternal view, String url, LoadStatusInternal status) {
  56                     if (status == LoadStatusInternal.FINISHED) {
  57                         mPresentationId = mContentView.getContentID();
  58                         onContentLoaded();
  59                     }
  60                 }
  61             };
  62             mContentView.setUIClient(xWalkUIClient);
  63         }
  64         mContentView.load(url, null);
  65     }
  66
  67     public int getPresentationId() {
  68         return mPresentationId;
  69     }
  70
  71     public View getContentView() {
  72         return mContentView;
  73     }
  74
  75     public void close() {
  76         mContentView.onDestroy();
  77         mPresentationId = INVALID_PRESENTATION_ID;
  78         mContentView = null;
  79     }
  80
  81     public void onPause() {
  82         mContentView.pauseTimers();
  83         mContentView.onHide();
  84     }
  85
  86     public void onResume() {
  87         mContentView.resumeTimers();
  88         mContentView.onShow();
  89     }
  90
  91     private void onContentLoaded() {
  92         if (mDelegate != null) mDelegate.onContentLoaded(this);
  93     }
  94
  95     private void onContentClosed() {
  96         if (mDelegate != null) mDelegate.onContentClosed(this);
  97     }
  98
  99     /**
 100      * Interface to hook into XWalkPresentationContent instance.
 101      */
 102     public interface PresentationDelegate {
 103         /**
 104          * Called when the presentation content is loaded.
 105          */
 106         public void onContentLoaded(XWalkPresentationContent content);
 107
 108         /**
 109          * Called when the presentation content is closed.
 110          */
 111         public void onContentClosed(XWalkPresentationContent content);
 112     }
 113 }