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// Copyright 2013 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/notifications/fullscreen_notification_blocker.h"
#include "base/time/time.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/fullscreen.h"
#include "content/public/browser/notification_service.h"
#if defined(USE_ASH)
#include "ash/root_window_controller.h"
#include "ash/shell.h"
#include "ash/system/system_notifier.h"
#include "ash/wm/window_state.h"
#include "ui/aura/window.h"
#include "ui/aura/window_event_dispatcher.h"
#endif
namespace {
bool DoesFullscreenModeBlockNotifications() {
#if defined(USE_ASH)
if (ash::Shell::HasInstance()) {
ash::internal::RootWindowController* controller =
ash::internal::RootWindowController::ForTargetRootWindow();
// During shutdown |controller| can be NULL.
if (!controller)
return false;
// Block notifications if the shelf is hidden because of a fullscreen
// window.
const aura::Window* fullscreen_window =
controller->GetWindowForFullscreenMode();
if (!fullscreen_window)
return false;
return ash::wm::GetWindowState(fullscreen_window)->
hide_shelf_when_fullscreen();
}
#endif
return IsFullScreenMode();
}
} // namespace
FullscreenNotificationBlocker::FullscreenNotificationBlocker(
message_center::MessageCenter* message_center)
: NotificationBlocker(message_center),
is_fullscreen_mode_(false) {
registrar_.Add(this, chrome::NOTIFICATION_FULLSCREEN_CHANGED,
content::NotificationService::AllSources());
}
FullscreenNotificationBlocker::~FullscreenNotificationBlocker() {
}
void FullscreenNotificationBlocker::CheckState() {
bool was_fullscreen_mode = is_fullscreen_mode_;
is_fullscreen_mode_ = DoesFullscreenModeBlockNotifications();
if (is_fullscreen_mode_ != was_fullscreen_mode)
NotifyBlockingStateChanged();
}
bool FullscreenNotificationBlocker::ShouldShowNotificationAsPopup(
const message_center::NotifierId& notifier_id) const {
bool enabled = !is_fullscreen_mode_;
#if defined(USE_ASH)
if (ash::Shell::HasInstance())
enabled = enabled || ash::system_notifier::ShouldAlwaysShowPopups(
notifier_id);
#endif
return enabled;
}
void FullscreenNotificationBlocker::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK_EQ(chrome::NOTIFICATION_FULLSCREEN_CHANGED, type);
CheckState();
}
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