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// Copyright (c) 2009 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 "app/gfx/canvas.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/common/notification_registrar.h"
#include "chrome/common/notification_service.h"
#include "views/controls/label.h"
#include "views/widget/widget_win.h"
// ThemeInstallBubbleView launches a "loading..." bubble in the center of the
// currently active browser window when an extension or theme is loaded. If
// an extension is being applied, the bubble goes away immediately. If a theme
// is being applied, it disappears when the theme has been loaded. The purpose
// of this bubble is to warn the user that the browser may be unresponsive
// while the theme is being installed.
//
// Edge case: note that if one installs a theme in one window and then switches
// rapidly to another window to install a theme there as well (in the short
// time between install begin and theme caching seizing the UI thread), the
// loading bubble will only appear over the first window.
class ThemeInstallBubbleView : public NotificationObserver,
public views::Label {
public:
explicit ThemeInstallBubbleView(TabContents* tab_contents);
~ThemeInstallBubbleView();
// NotificationObserver
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details);
// Show the loading bubble.
static void Show(TabContents* tab_contents);
private:
// The roundedness of the edges of our bubble.
static const int kBubbleCornerRadius = 4;
// The content area at the start of the animation.
gfx::Rect tab_contents_bounds_;
// We use a HWND for the popup so that it may float above any HWNDs in our UI.
views::WidgetWin* popup_;
// Text to show warning that theme is being installed.
std::wstring text_;
// A scoped container for notification registries.
NotificationRegistrar registrar_;
// Put the popup in the correct place on the tab.
void Reposition();
// Inherited from views.
gfx::Size GetPreferredSize();
// Shut down the popup and remove our notifications.
void Close();
virtual void Paint(gfx::Canvas* canvas);
DISALLOW_COPY_AND_ASSIGN(ThemeInstallBubbleView);
};
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