src/xwalk/runtime/android/sample/src/org/xwalk/core/sample/OnCreateWindowRequestedActivity.java

   1 // Copyright (c) 2014 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.sample;
   6
   7 import android.app.Activity;
   8 import android.os.Bundle;
   9 import android.view.KeyEvent;
  10 import android.widget.LinearLayout;
  11 import android.webkit.ValueCallback;
  12
  13 import java.util.LinkedList;
  14
  15 import org.xwalk.core.XWalkNavigationHistory;
  16 import org.xwalk.core.XWalkUIClient;
  17 import org.xwalk.core.XWalkView;
  18
  19 public class OnCreateWindowRequestedActivity extends XWalkBaseActivity {
  20     private LinearLayout mParent;
  21     private LinkedList<XWalkView> mXWalkViewHistory = new LinkedList<XWalkView>();
  22
  23     @Override
  24     protected void onCreate(Bundle savedInstanceState) {
  25         super.onCreate(savedInstanceState);
  26
  27         mParent = new LinearLayout(OnCreateWindowRequestedActivity.this);
  28         setContentView(mParent);
  29
  30         mXWalkView = new XWalkView(OnCreateWindowRequestedActivity.this,
  31                 OnCreateWindowRequestedActivity.this);
  32         setClient(mXWalkView);
  33
  34         mParent.addView(mXWalkView);
  35         mXWalkViewHistory.add(mXWalkView);
  36
  37         mXWalkView.load("file:///android_asset/create_window_1.html", null);
  38     }
  39
  40     private void setClient(XWalkView view) {
  41         view.setUIClient(new XWalkUIClient(view) {
  42             @Override
  43             public boolean onCreateWindowRequested(XWalkView view, InitiateBy initiator,
  44                     ValueCallback<XWalkView> callback) {
  45                 XWalkView newView = new XWalkView(OnCreateWindowRequestedActivity.this,
  46                         OnCreateWindowRequestedActivity.this);
  47                 setClient(newView);
  48
  49                 mParent.removeView(mXWalkViewHistory.getLast());
  50                 mParent.addView(newView);
  51                 mXWalkViewHistory.add(newView);
  52
  53                 callback.onReceiveValue(newView);
  54                 return true;
  55             }
  56         });
  57     }
  58
  59     @Override
  60     public boolean onKeyDown(int keyCode, KeyEvent event) {
  61         if (event.getAction() == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_BACK) {
  62             if (mXWalkViewHistory.getLast().getNavigationHistory().canGoBack()) {
  63                 mXWalkViewHistory.getLast().getNavigationHistory().navigate(
  64                         XWalkNavigationHistory.Direction.BACKWARD, 1);
  65                 return true;
  66             } else if (mXWalkViewHistory.size() > 1) {
  67                 mParent.removeView(mXWalkViewHistory.removeLast());
  68                 mParent.addView(mXWalkViewHistory.getLast());
  69                 return true;
  70             }
  71         }
  72         return super.onKeyDown(keyCode, event);
  73     }
  74 }