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      1 /*
      2  * Copyright 2009, The Android Open Source Project
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 package android.webkit;
     26 
     27 import android.content.Context;
     28 import android.view.Gravity;
     29 import android.view.KeyEvent;
     30 import android.view.MotionEvent;
     31 import android.view.SurfaceView;
     32 import android.view.View;
     33 import android.view.ViewGroup;
     34 import android.widget.FrameLayout;
     35 
     36 class PluginFullScreenHolder {
     37 
     38     private final WebView mWebView;
     39     private final int mNpp;
     40     private final int mOrientation;
     41 
     42     // The container for the plugin view
     43     private static CustomFrameLayout mLayout;
     44 
     45     private View mContentView;
     46 
     47     PluginFullScreenHolder(WebView webView, int orientation, int npp) {
     48         mWebView = webView;
     49         mNpp = npp;
     50         mOrientation = orientation;
     51     }
     52 
     53     public void setContentView(View contentView) {
     54 
     55         // Create a FrameLayout that will contain the plugin's view
     56         mLayout = new CustomFrameLayout(mWebView.getContext());
     57         FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(
     58                             ViewGroup.LayoutParams.MATCH_PARENT,
     59                             ViewGroup.LayoutParams.MATCH_PARENT,
     60                             Gravity.CENTER);
     61 
     62         mLayout.addView(contentView, layoutParams);
     63         mLayout.setVisibility(View.VISIBLE);
     64 
     65         // fixed size is only used either during pinch zoom or surface is too
     66         // big. Make sure it is not fixed size before setting it to the full
     67         // screen content view. The SurfaceView will be set to the correct mode
     68         // by the ViewManager when it is re-attached to the WebView.
     69         if (contentView instanceof SurfaceView) {
     70             final SurfaceView sView = (SurfaceView) contentView;
     71             if (sView.isFixedSize()) {
     72                 sView.getHolder().setSizeFromLayout();
     73             }
     74         }
     75 
     76         mContentView = contentView;
     77     }
     78 
     79     public void show() {
     80         // Other plugins may attempt to draw so hide them while we're active.
     81         if (mWebView.getViewManager() != null)
     82             mWebView.getViewManager().hideAll();
     83 
     84         WebChromeClient client = mWebView.getWebChromeClient();
     85         client.onShowCustomView(mLayout, mOrientation, mCallback);
     86     }
     87 
     88     public void hide() {
     89         WebChromeClient client = mWebView.getWebChromeClient();
     90         client.onHideCustomView();
     91     }
     92 
     93     private class CustomFrameLayout extends FrameLayout {
     94 
     95         CustomFrameLayout(Context context) {
     96             super(context);
     97         }
     98 
     99         @Override
    100         public boolean onKeyDown(int keyCode, KeyEvent event) {
    101             if (event.isSystem()) {
    102                 return super.onKeyDown(keyCode, event);
    103             }
    104             mWebView.onKeyDown(keyCode, event);
    105             // always return true as we are the handler
    106             return true;
    107         }
    108 
    109         @Override
    110         public boolean onKeyUp(int keyCode, KeyEvent event) {
    111             if (event.isSystem()) {
    112                 return super.onKeyUp(keyCode, event);
    113             }
    114             mWebView.onKeyUp(keyCode, event);
    115             // always return true as we are the handler
    116             return true;
    117         }
    118 
    119         @Override
    120         public boolean onTouchEvent(MotionEvent event) {
    121             // always return true as we don't want the event to propagate any further
    122             return true;
    123         }
    124 
    125         @Override
    126         public boolean onTrackballEvent(MotionEvent event) {
    127             mWebView.onTrackballEvent(event);
    128             // always return true as we are the handler
    129             return true;
    130         }
    131     }
    132 
    133     private final WebChromeClient.CustomViewCallback mCallback =
    134         new WebChromeClient.CustomViewCallback() {
    135             public void onCustomViewHidden() {
    136 
    137                 mWebView.mPrivateHandler.obtainMessage(WebView.HIDE_FULLSCREEN)
    138                     .sendToTarget();
    139 
    140                 mWebView.getWebViewCore().sendMessage(
    141                         WebViewCore.EventHub.HIDE_FULLSCREEN, mNpp, 0);
    142 
    143                 mLayout.removeView(mContentView);
    144                 mLayout = null;
    145 
    146                 // Re enable plugin views.
    147                 mWebView.getViewManager().showAll();
    148             }
    149         };
    150 }
    151