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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/ash/media_delegate_chromeos.h"
#include "apps/app_window.h"
#include "apps/app_window_registry.h"
#include "ash/shell.h"
#include "ash/system/tray/system_tray_notifier.h"
#include "base/message_loop/message_loop.h"
#include "chrome/browser/chromeos/extensions/media_player_api.h"
#include "chrome/browser/chromeos/extensions/media_player_event_router.h"
#include "chrome/browser/media/media_stream_capture_indicator.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#include "extensions/browser/extension_system.h"
#include "extensions/browser/process_manager.h"
namespace {
void GetMediaCaptureState(
const MediaStreamCaptureIndicator* indicator,
content::WebContents* web_contents,
int* media_state_out) {
if (indicator->IsCapturingVideo(web_contents))
*media_state_out |= ash::MEDIA_CAPTURE_VIDEO;
if (indicator->IsCapturingAudio(web_contents))
*media_state_out |= ash::MEDIA_CAPTURE_AUDIO;
}
void GetBrowserMediaCaptureState(
const MediaStreamCaptureIndicator* indicator,
const content::BrowserContext* context,
int* media_state_out) {
const BrowserList* desktop_list =
BrowserList::GetInstance(chrome::HOST_DESKTOP_TYPE_ASH);
for (BrowserList::BrowserVector::const_iterator iter = desktop_list->begin();
iter != desktop_list->end();
++iter) {
TabStripModel* tab_strip_model = (*iter)->tab_strip_model();
for (int i = 0; i < tab_strip_model->count(); ++i) {
content::WebContents* web_contents = tab_strip_model->GetWebContentsAt(i);
if (web_contents->GetBrowserContext() != context)
continue;
GetMediaCaptureState(indicator, web_contents, media_state_out);
if (*media_state_out == ash::MEDIA_CAPTURE_AUDIO_VIDEO)
return;
}
}
}
void GetAppMediaCaptureState(
const MediaStreamCaptureIndicator* indicator,
content::BrowserContext* context,
int* media_state_out) {
const apps::AppWindowRegistry::AppWindowList& apps =
apps::AppWindowRegistry::Get(context)->app_windows();
for (apps::AppWindowRegistry::AppWindowList::const_iterator iter =
apps.begin();
iter != apps.end();
++iter) {
GetMediaCaptureState(indicator, (*iter)->web_contents(), media_state_out);
if (*media_state_out == ash::MEDIA_CAPTURE_AUDIO_VIDEO)
return;
}
}
void GetExtensionMediaCaptureState(
const MediaStreamCaptureIndicator* indicator,
content::BrowserContext* context,
int* media_state_out) {
extensions::ProcessManager* process_manager =
extensions::ExtensionSystem::Get(context)->process_manager();
const extensions::ProcessManager::ViewSet view_set =
process_manager->GetAllViews();
for (extensions::ProcessManager::ViewSet::const_iterator iter =
view_set.begin();
iter != view_set.end();
++iter) {
content::WebContents* web_contents =
content::WebContents::FromRenderViewHost(*iter);
// RVH may not have web contents.
if (!web_contents)
continue;
GetMediaCaptureState(indicator, web_contents, media_state_out);
if (*media_state_out == ash::MEDIA_CAPTURE_AUDIO_VIDEO)
return;
}
}
ash::MediaCaptureState GetMediaCaptureStateOfAllWebContents(
content::BrowserContext* context) {
if (!context)
return ash::MEDIA_CAPTURE_NONE;
scoped_refptr<MediaStreamCaptureIndicator> indicator =
MediaCaptureDevicesDispatcher::GetInstance()
->GetMediaStreamCaptureIndicator();
int media_state = ash::MEDIA_CAPTURE_NONE;
// Browser windows
GetBrowserMediaCaptureState(indicator.get(), context, &media_state);
if (media_state == ash::MEDIA_CAPTURE_AUDIO_VIDEO)
return ash::MEDIA_CAPTURE_AUDIO_VIDEO;
// App windows
GetAppMediaCaptureState(indicator.get(), context, &media_state);
if (media_state == ash::MEDIA_CAPTURE_AUDIO_VIDEO)
return ash::MEDIA_CAPTURE_AUDIO_VIDEO;
// Extensions
GetExtensionMediaCaptureState(indicator.get(), context, &media_state);
return static_cast<ash::MediaCaptureState>(media_state);
}
} // namespace
MediaDelegateChromeOS::MediaDelegateChromeOS() : weak_ptr_factory_(this) {
MediaCaptureDevicesDispatcher::GetInstance()->AddObserver(this);
}
MediaDelegateChromeOS::~MediaDelegateChromeOS() {
MediaCaptureDevicesDispatcher::GetInstance()->RemoveObserver(this);
}
void MediaDelegateChromeOS::HandleMediaNextTrack() {
extensions::MediaPlayerAPI::Get(ProfileManager::GetActiveUserProfile())
->media_player_event_router()
->NotifyNextTrack();
}
void MediaDelegateChromeOS::HandleMediaPlayPause() {
extensions::MediaPlayerAPI::Get(ProfileManager::GetActiveUserProfile())
->media_player_event_router()
->NotifyTogglePlayState();
}
void MediaDelegateChromeOS::HandleMediaPrevTrack() {
extensions::MediaPlayerAPI::Get(ProfileManager::GetActiveUserProfile())
->media_player_event_router()
->NotifyPrevTrack();
}
ash::MediaCaptureState MediaDelegateChromeOS::GetMediaCaptureState(
content::BrowserContext* context) {
return GetMediaCaptureStateOfAllWebContents(context);
}
void MediaDelegateChromeOS::OnRequestUpdate(
int render_process_id,
int render_frame_id,
content::MediaStreamType stream_type,
const content::MediaRequestState state) {
base::MessageLoopForUI::current()->PostTask(
FROM_HERE,
base::Bind(&MediaDelegateChromeOS::NotifyMediaCaptureChange,
weak_ptr_factory_.GetWeakPtr()));
}
void MediaDelegateChromeOS::NotifyMediaCaptureChange() {
ash::Shell::GetInstance()
->system_tray_notifier()
->NotifyMediaCaptureChanged();
}
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