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// Copyright (c) 2011 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.
#ifndef CHROME_BROWSER_UI_GTK_INFOBARS_INFOBAR_CONTAINER_GTK_H_
#define CHROME_BROWSER_UI_GTK_INFOBARS_INFOBAR_CONTAINER_GTK_H_
#pragma once
#include <vector>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "chrome/browser/infobars/infobar_container.h"
#include "ui/base/gtk/owned_widget_gtk.h"
class InfoBar;
class InfoBarGtk;
class InfoBarDelegate;
class Profile;
namespace gfx {
class Rect;
}
typedef struct _GdkColor GdkColor;
typedef struct _GdkEventExpose GdkEventExpose;
typedef struct _GtkWidget GtkWidget;
// Container that both contains the currently displaying infobars, and does
// drawing of infobar arrows on other widgets.
//
// Due to how X11/GTK+ works, this class owns the methods to draw arrows on top
// of other widgets. Since most bars in the top of the window have their own
// event boxes, we can't just draw over the coordinates in the toplevel window
// as event boxes get their own canvases (and they need to have their own event
// boxes for a mixture of handling mouse events and themeing). And because they
// have their own event boxes and event boxes can't be partially transparent,
// we can't just overlap the widgets.
class InfoBarContainerGtk : public InfoBarContainer {
public:
InfoBarContainerGtk(InfoBarContainer::Delegate* delegate, Profile* profile);
virtual ~InfoBarContainerGtk();
// Get the native widget.
GtkWidget* widget() const { return container_.get(); }
// Remove the specified InfoBarDelegate from the selected TabContents. This
// will notify us back and cause us to close the View. This is called from
// the InfoBar's close button handler.
void RemoveDelegate(InfoBarDelegate* delegate);
// Returns the total pixel height of all infobars in this container that
// are currently animating.
int TotalHeightOfAnimatingBars() const;
// True if we are displaying any infobars.
bool ContainsInfobars() const;
// Paints parts of infobars that aren't inside the infobar's widget. This
// method is called with |widget|/|expose| pairs for both infobars and
// toolbars. All infobars starting from |infobar| (NULL for the first) to the
// end of the list will be rendered.
void PaintInfobarBitsOn(GtkWidget* widget,
GdkEventExpose* expose,
InfoBarGtk* infobar);
protected:
// InfoBarContainer:
virtual void PlatformSpecificAddInfoBar(InfoBar* infobar,
size_t position) OVERRIDE;
virtual void PlatformSpecificRemoveInfoBar(InfoBar* infobar) OVERRIDE;
virtual void PlatformSpecificInfoBarStateChanged(bool is_animating) OVERRIDE;
private:
// Performs the actual painting of the arrow in an expose event.
void PaintArrowOn(GtkWidget* widget,
GdkEventExpose* expose,
const gfx::Rect& bounds,
InfoBarGtk* source);
// The profile for the browser that hosts this InfoBarContainer.
Profile* profile_;
// A list of the InfoBarGtk* instances. Used during drawing to determine
// which InfoBarGtk supplies information about drawing the arrows.
std::vector<InfoBarGtk*> infobars_gtk_;
// VBox that holds the info bars.
ui::OwnedWidgetGtk container_;
DISALLOW_COPY_AND_ASSIGN(InfoBarContainerGtk);
};
#endif // CHROME_BROWSER_UI_GTK_INFOBARS_INFOBAR_CONTAINER_GTK_H_
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