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// Copyright (c) 2010 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/chromeos/notifications/balloon_collection_impl.h"
#include <algorithm>
#include "base/logging.h"
#include "base/stl_util-inl.h"
#include "chrome/browser/browser_list.h"
#include "chrome/browser/chromeos/notifications/balloon_view.h"
#include "chrome/browser/chromeos/notifications/notification_panel.h"
#include "chrome/browser/notifications/balloon.h"
#include "chrome/browser/notifications/notification.h"
#include "chrome/browser/window_sizer.h"
#include "chrome/common/notification_service.h"
#include "gfx/rect.h"
#include "gfx/size.h"
namespace {
// Portion of the screen allotted for notifications. When notification balloons
// extend over this, no new notifications are shown until some are closed.
const double kPercentBalloonFillFactor = 0.7;
// Allow at least this number of balloons on the screen.
const int kMinAllowedBalloonCount = 2;
// Margin from the edge of the work area
const int kVerticalEdgeMargin = 5;
const int kHorizontalEdgeMargin = 5;
class NotificationMatcher {
public:
explicit NotificationMatcher(const Notification& notification)
: notification_(notification) {}
bool operator()(const Balloon* b) {
return notification_.IsSame(b->notification());
}
private:
Notification notification_;
};
} // namespace
namespace chromeos {
const int BalloonCollectionImpl::kBalloonWidth = 300;
const int BalloonCollectionImpl::kBalloonMinHeight = 24;
BalloonCollectionImpl::BalloonCollectionImpl()
: notification_ui_(new NotificationPanel()) {
registrar_.Add(this, NotificationType::BROWSER_CLOSED,
NotificationService::AllSources());
}
BalloonCollectionImpl::~BalloonCollectionImpl() {
Shutdown();
}
void BalloonCollectionImpl::Add(const Notification& notification,
Profile* profile) {
Balloon* new_balloon = MakeBalloon(notification, profile);
balloons_.push_back(new_balloon);
new_balloon->Show();
notification_ui_->Add(new_balloon);
// There may be no listener in a unit test.
if (space_change_listener_)
space_change_listener_->OnBalloonSpaceChanged();
}
void BalloonCollectionImpl::AddSystemNotification(
const Notification& notification,
Profile* profile,
bool sticky,
bool control) {
// TODO(oshima): We need to modify BallonCollection/MakeBalloon pattern
// in order to add unit tests for system notification.
Balloon* new_balloon = new Balloon(notification, profile, this);
new_balloon->set_view(
new chromeos::BalloonViewImpl(sticky, control));
balloons_.push_back(new_balloon);
new_balloon->Show();
notification_ui_->Add(new_balloon);
// There may be no listener in a unit test.
if (space_change_listener_)
space_change_listener_->OnBalloonSpaceChanged();
}
bool BalloonCollectionImpl::UpdateNotification(
const Notification& notification) {
Balloons::iterator iter = FindBalloon(notification);
if (iter != balloons_.end()) {
Balloon* balloon = *iter;
balloon->Update(notification);
notification_ui_->Update(balloon);
return true;
}
return false;
}
bool BalloonCollectionImpl::Remove(const Notification& notification) {
Balloons::iterator iter = FindBalloon(notification);
if (iter != balloons_.end()) {
// Balloon.CloseByScript() will cause OnBalloonClosed() to be called on
// this object, which will remove it from the collection and free it.
(*iter)->CloseByScript();
return true;
}
return false;
}
bool BalloonCollectionImpl::HasSpace() const {
return true;
}
void BalloonCollectionImpl::ResizeBalloon(Balloon* balloon,
const gfx::Size& size) {
notification_ui_->ResizeNotification(balloon, size);
}
void BalloonCollectionImpl::OnBalloonClosed(Balloon* source) {
// We want to free the balloon when finished.
scoped_ptr<Balloon> closed(source);
notification_ui_->Remove(source);
Balloons::iterator iter = FindBalloon(source->notification());
if (iter != balloons_.end()) {
balloons_.erase(iter);
}
// There may be no listener in a unit test.
if (space_change_listener_)
space_change_listener_->OnBalloonSpaceChanged();
}
void BalloonCollectionImpl::Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
DCHECK(type == NotificationType::BROWSER_CLOSED);
if (BrowserList::GetLastActive() == NULL) {
// When exitting, we need to shutdown all renderers in
// BalloonViewImpl before IO thread gets deleted in the
// BrowserProcessImpl's destructor. See http://crbug.com/40810
// for details.
Shutdown();
}
}
void BalloonCollectionImpl::Shutdown() {
// We need to remove the panel first because deleting
// views that are not owned by parent will not remove
// themselves from the parent.
notification_ui_.reset();
STLDeleteElements(&balloons_);
}
Balloon* BalloonCollectionImpl::MakeBalloon(const Notification& notification,
Profile* profile) {
Balloon* new_balloon = new Balloon(notification, profile, this);
new_balloon->set_view(new chromeos::BalloonViewImpl(false, true));
new_balloon->set_content_size(gfx::Size(kBalloonWidth, kBalloonMinHeight));
return new_balloon;
}
std::deque<Balloon*>::iterator BalloonCollectionImpl::FindBalloon(
const Notification& notification) {
return std::find_if(balloons_.begin(),
balloons_.end(),
NotificationMatcher(notification));
}
} // namespace chromeos
// static
BalloonCollection* BalloonCollection::Create() {
return new chromeos::BalloonCollectionImpl();
}
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