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