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// Copyright (c) 2012 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/status_icons/desktop_notification_balloon.h"
#include "base/bind.h"
#include "base/string_number_conversions.h"
#include "base/threading/thread_restrictions.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/notifications/desktop_notification_service.h"
#include "chrome/browser/notifications/notification.h"
#include "chrome/browser/notifications/notification_delegate.h"
#include "chrome/browser/notifications/notification_ui_manager.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/ui/webui/web_ui_util.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/gfx/image/image_skia.h"
namespace {
void CloseBalloon(const std::string& id) {
// The browser process may have gone away during shutting down, in this case
// notification_ui_manager() will close the balloon in its destructor.
if (!g_browser_process)
return;
g_browser_process->notification_ui_manager()->CancelById(id);
}
// Prefix added to the notification ids.
const char kNotificationPrefix[] = "desktop_notification_balloon.";
// Timeout for automatically dismissing the notification balloon.
const size_t kTimeoutSeconds = 6;
class DummyNotificationDelegate : public NotificationDelegate {
public:
explicit DummyNotificationDelegate(const std::string& id)
: id_(kNotificationPrefix + id) {}
virtual void Display() OVERRIDE {
MessageLoop::current()->PostDelayedTask(
FROM_HERE,
base::Bind(&CloseBalloon, id()),
base::TimeDelta::FromSeconds(kTimeoutSeconds));
}
virtual void Error() OVERRIDE {}
virtual void Close(bool by_user) OVERRIDE {}
virtual void Click() OVERRIDE {}
virtual std::string id() const OVERRIDE { return id_; }
private:
virtual ~DummyNotificationDelegate() {}
std::string id_;
};
} // anonymous namespace
int DesktopNotificationBalloon::id_count_ = 1;
DesktopNotificationBalloon::DesktopNotificationBalloon() {
}
DesktopNotificationBalloon::~DesktopNotificationBalloon() {
if (notification_.get())
CloseBalloon(notification_->notification_id());
}
void DesktopNotificationBalloon::DisplayBalloon(const SkBitmap& icon,
const string16& title,
const string16& contents) {
GURL icon_url;
if (!icon.empty())
icon_url = GURL(web_ui_util::GetImageDataUrl(gfx::ImageSkia(icon)));
GURL content_url(DesktopNotificationService::CreateDataUrl(
icon_url, title, contents, WebKit::WebTextDirectionDefault));
notification_.reset(new Notification(
GURL(), content_url, string16(), string16(),
new DummyNotificationDelegate(base::IntToString(id_count_++))));
// Allowing IO access is required here to cover the corner case where
// there is no last used profile and the default one is loaded.
// IO access won't be required for normal uses.
base::ThreadRestrictions::ScopedAllowIO allow_io;
g_browser_process->notification_ui_manager()->Add(
*notification_.get(), ProfileManager::GetLastUsedProfile());
}
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