android_webview/java/src/org/chromium/android_webview/AwContentViewClient.java

   1 // Copyright 2013 The Chromium Authors. 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.chromium.android_webview;
   6
   7 import android.content.Context;
   8 import android.view.KeyEvent;
   9 import android.view.View;
  10 import android.webkit.URLUtil;
  11 import android.webkit.WebChromeClient;
  12 import android.widget.FrameLayout;
  13
  14 import org.chromium.content.browser.ContentVideoViewClient;
  15 import org.chromium.content.browser.ContentViewClient;
  16 import org.chromium.content.browser.WebActionMode;
  17 import org.chromium.content.browser.WebActionModeCallback.ActionHandler;
  18
  19 /**
  20  * ContentViewClient implementation for WebView
  21  */
  22 public class AwContentViewClient extends ContentViewClient implements ContentVideoViewClient {
  23     private final AwContentsClient mAwContentsClient;
  24     private final AwSettings mAwSettings;
  25     private final AwContents mAwContents;
  26     private final Context mContext;
  27     private FrameLayout mCustomView;
  28
  29     public AwContentViewClient(AwContentsClient awContentsClient, AwSettings awSettings,
  30             AwContents awContents, Context context) {
  31         mAwContentsClient = awContentsClient;
  32         mAwSettings = awSettings;
  33         mAwContents = awContents;
  34         mContext = context;
  35     }
  36
  37     @Override
  38     public void onBackgroundColorChanged(int color) {
  39         mAwContentsClient.onBackgroundColorChanged(color);
  40     }
  41
  42     @Override
  43     public void onStartContentIntent(Context context, String contentUrl) {
  44         if (mAwContentsClient.hasWebViewClient()) {
  45             //  Callback when detecting a click on a content link.
  46             mAwContentsClient.shouldOverrideUrlLoading(contentUrl);
  47             return;
  48         }
  49
  50         // Comes from WebViewImpl::detectContentOnTouch in Blink, so must be user-initiated, and
  51         // isn't a redirect.
  52         AwContentsClient.sendBrowsingIntent(context, contentUrl, true, false);
  53     }
  54
  55     @Override
  56     public void onUpdateTitle(String title) {
  57         mAwContentsClient.updateTitle(title, true);
  58     }
  59
  60     @Override
  61     public boolean shouldOverrideKeyEvent(KeyEvent event) {
  62         if (mAwContentsClient.hasWebViewClient()) {
  63             // The check below is reflecting Chrome's behavior and is a workaround for
  64             // http://b/7697782.
  65             if (!ContentViewClient.shouldPropagateKey(event.getKeyCode())) return true;
  66             return mAwContentsClient.shouldOverrideKeyEvent(event);
  67         }
  68
  69         return super.shouldOverrideKeyEvent(event);
  70     }
  71
  72     @Override
  73     public WebActionMode startActionMode(
  74             View view, ActionHandler actionHandler, boolean floating) {
  75         return mAwContentsClient.startActionMode(view, actionHandler, floating);
  76     }
  77
  78     @Override
  79     public boolean supportsFloatingActionMode() {
  80         return mAwContentsClient.supportsFloatingActionMode();
  81     }
  82
  83     @Override
  84     public final ContentVideoViewClient getContentVideoViewClient() {
  85         return this;
  86     }
  87
  88     @Override
  89     public boolean shouldBlockMediaRequest(String url) {
  90         return mAwSettings != null
  91                 ? mAwSettings.getBlockNetworkLoads() && URLUtil.isNetworkUrl(url) : true;
  92     }
  93
  94     @Override
  95     public void enterFullscreenVideo(View videoView) {
  96         if (mCustomView == null) {
  97             // enterFullscreenVideo will only be called after enterFullscreen, but
  98             // in this case exitFullscreen has been invoked in between them.
  99             // TODO(igsolla): Fix http://crbug/425926 and replace with assert.
 100             return;
 101         }
 102         mCustomView.addView(videoView, 0);
 103     }
 104
 105     @Override
 106     public void exitFullscreenVideo() {
 107         // Intentional no-op
 108     }
 109
 110     @Override
 111     public View getVideoLoadingProgressView() {
 112         return mAwContentsClient.getVideoLoadingProgressView();
 113     }
 114
 115     @Override
 116     public void setSystemUiVisibility(boolean enterFullscreen) {
 117     }
 118
 119     /**
 120      * Called to show the web contents in fullscreen mode.
 121      *
 122      * <p>If entering fullscreen on a video element the web contents will contain just
 123      * the html5 video controls. {@link #enterFullscreenVideo(View)} will be called later
 124      * once the ContentVideoView, which contains the hardware accelerated fullscreen video,
 125      * is ready to be shown.
 126      */
 127     public void enterFullscreen() {
 128         if (mAwContents.isFullScreen()) {
 129             return;
 130         }
 131         View fullscreenView = mAwContents.enterFullScreen();
 132         if (fullscreenView == null) {
 133             return;
 134         }
 135         WebChromeClient.CustomViewCallback cb = new WebChromeClient.CustomViewCallback() {
 136             @Override
 137             public void onCustomViewHidden() {
 138                 if (mCustomView != null) {
 139                     mAwContents.requestExitFullscreen();
 140                 }
 141             }
 142         };
 143         mCustomView = new FrameLayout(mContext);
 144         mCustomView.addView(fullscreenView);
 145         mAwContentsClient.onShowCustomView(mCustomView, cb);
 146     }
 147
 148     /**
 149      * Called to show the web contents in embedded mode.
 150      */
 151     public void exitFullscreen() {
 152         if (mCustomView != null) {
 153             mCustomView = null;
 154             mAwContents.exitFullScreen();
 155             mAwContentsClient.onHideCustomView();
 156         }
 157     }
 158
 159     @Override
 160     public boolean isExternalScrollActive() {
 161         return mAwContents.isSmoothScrollingActive();
 162     }
 163 }