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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.
// Draws the view for the balloons.
#include "chrome/browser/chromeos/notifications/notification_panel.h"
#include "app/gfx/canvas.h"
#include "app/l10n_util.h"
#include "app/resource_bundle.h"
#include "base/singleton.h"
#include "chrome/browser/chromeos/notifications/balloon_view.h"
#include "grit/generated_resources.h"
#include "views/background.h"
#include "views/widget/widget_gtk.h"
namespace chromeos {
class BalloonContainer : public views::View {
public:
explicit BalloonContainer(int margin)
: View(),
margin_(margin) {
}
virtual ~BalloonContainer() {}
// views::View overrides.
virtual gfx::Size GetPreferredSize() {
return preferred_size_;
}
virtual void Layout() {
// Layout bottom up
int count = GetChildViewCount();
int height = 0;
for (int i = count - 1; i >= 0; --i) {
views::View* child = GetChildViewAt(i);
child->SetBounds(0, height, child->width(), child->height());
height += child->height() + margin_;
}
SchedulePaint();
}
// Updates the bound so that it can show all balloons.
void UpdateBounds() {
int height = 0;
int max_width = 0;
for (int i = GetChildViewCount() - 1; i >= 0; --i) {
views::View* c = GetChildViewAt(i);
height += c->height() + margin_;
max_width = std::max(max_width, c->width());
}
if (height > 0) height -= margin_;
preferred_size_.set_width(max_width);
preferred_size_.set_height(height);
PreferredSizeChanged();
SizeToPreferredSize();
}
private:
gfx::Size preferred_size_;
int margin_;
};
// static
NotificationPanel* NotificationPanel::Get() {
return Singleton<NotificationPanel>::get();
}
NotificationPanel::NotificationPanel()
: panel_widget_(NULL) {
Init();
}
NotificationPanel::~NotificationPanel() {
}
gfx::Rect NotificationPanel::GetPanelBounds() {
gfx::Size pref_size = balloon_container_->GetPreferredSize();
int new_height = pref_size.height();
return gfx::Rect(0, 0, pref_size.width(), new_height);
}
void NotificationPanel::Init() {
DCHECK(!panel_widget_.get());
balloon_container_ = new BalloonContainer(1);
balloon_container_->set_parent_owned(false);
balloon_container_->set_background(
views::Background::CreateSolidBackground(ResourceBundle::frame_color));
}
void NotificationPanel::Add(BalloonViewImpl* view) {
balloon_container_->AddChildView(view);
balloon_container_->UpdateBounds();
balloon_container_->Layout();
if (panel_widget_.get()) {
panel_widget_->SetBounds(GetPanelBounds());
}
}
void NotificationPanel::Remove(BalloonViewImpl* view) {
balloon_container_->RemoveChildView(view);
balloon_container_->UpdateBounds();
balloon_container_->Layout();
if (panel_widget_.get()) {
if (balloon_container_->GetChildViewCount() == 0) {
Hide();
} else {
panel_widget_->SetBounds(GetPanelBounds());
}
}
}
void NotificationPanel::Show() {
if (!panel_widget_.get()) {
// TODO(oshima): Using window because Popup widget behaves weird
// when resizing. This needs to be investigated.
panel_widget_.reset(new views::WidgetGtk(views::WidgetGtk::TYPE_WINDOW));
panel_widget_->Init(NULL, GetPanelBounds());
panel_widget_->SetContentsView(balloon_container_);
panel_controller_.reset(
new PanelController(this,
GTK_WINDOW(panel_widget_->GetNativeView()),
gfx::Rect(0, 0, 1000, 1000)));
}
panel_widget_->Show();
}
void NotificationPanel::Hide() {
if (panel_widget_.get()) {
panel_widget_.release()->Close();
panel_controller_.release()->Close();
}
}
string16 NotificationPanel::GetPanelTitle() {
return string16(l10n_util::GetStringUTF16(IDS_NOTIFICATION_PANEL_TITLE));
}
SkBitmap NotificationPanel::GetPanelIcon() {
return SkBitmap();
}
void NotificationPanel::ClosePanel() {
panel_widget_.release()->Close();
}
} // namespace chromeos
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