1// Copyright 2014 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#include "chrome/browser/android/voice_search_tab_helper.h" 6 7#include "base/command_line.h" 8#include "components/google/core/browser/google_util.h" 9#include "content/public/browser/render_view_host.h" 10#include "content/public/browser/web_contents.h" 11#include "content/public/common/content_switches.h" 12#include "content/public/common/web_preferences.h" 13#include "jni/VoiceSearchTabHelper_jni.h" 14 15using content::WebContents; 16 17// Register native methods 18bool RegisterVoiceSearchTabHelper(JNIEnv* env) { 19 return RegisterNativesImpl(env); 20} 21 22static void UpdateAutoplayStatus(JNIEnv* env, 23 jobject obj, 24 jobject j_web_contents) { 25 // In the case where media autoplay has been disabled by default (e.g. in 26 // performance media tests) do not update it based on navigation changes. 27 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); 28 if (command_line.HasSwitch( 29 switches::kDisableGestureRequirementForMediaPlayback)) 30 return; 31 32 WebContents* web_contents = WebContents::FromJavaWebContents(j_web_contents); 33 content::RenderViewHost* host = web_contents->GetRenderViewHost(); 34 content::WebPreferences prefs = host->GetWebkitPreferences(); 35 36 bool gesture_required = 37 !google_util::IsGoogleSearchUrl(web_contents->GetLastCommittedURL()); 38 39 if (gesture_required != prefs.user_gesture_required_for_media_playback) { 40 // TODO(chrishtr): this is wrong. user_gesture_required_for_media_playback 41 // will be reset the next time a preference changes. 42 prefs.user_gesture_required_for_media_playback = 43 !google_util::IsGoogleSearchUrl(web_contents->GetLastCommittedURL()); 44 host->UpdateWebkitPreferences(prefs); 45 } 46} 47