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// Copyright 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.
#ifndef CHROME_BROWSER_UI_GTK_TAB_CONTENTS_CONTAINER_GTK_H_
#define CHROME_BROWSER_UI_GTK_TAB_CONTENTS_CONTAINER_GTK_H_
#include <gtk/gtk.h>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "chrome/browser/ui/gtk/view_id_util.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "ui/base/gtk/gtk_signal.h"
#include "ui/base/gtk/owned_widget_gtk.h"
class StatusBubbleGtk;
namespace content {
class WebContents;
}
typedef struct _GtkFloatingContainer GtkFloatingContainer;
class TabContentsContainerGtk : public content::NotificationObserver,
public ViewIDUtil::Delegate {
public:
explicit TabContentsContainerGtk(StatusBubbleGtk* status_bubble);
virtual ~TabContentsContainerGtk();
void Init();
// Make the specified tab visible.
void SetTab(content::WebContents* tab);
content::WebContents* tab() const { return tab_; }
void SetOverlay(content::WebContents* overlay);
bool HasOverlay() const { return overlay_ != NULL; }
// Returns the WebContents currently displayed.
content::WebContents* GetVisibleTab() const {
return overlay_ ? overlay_ : tab_;
}
// Remove the tab from the hierarchy.
void DetachTab(content::WebContents* tab);
// content::NotificationObserver implementation.
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
GtkWidget* widget() { return floating_.get(); }
// ViewIDUtil::Delegate implementation ---------------------------------------
virtual GtkWidget* GetWidgetForViewID(ViewID id) OVERRIDE;
private:
// Called when a WebContents is destroyed. This gives us a chance to clean
// up our internal state if the WebContents is somehow destroyed before we
// get notified.
void WebContentsDestroyed(content::WebContents* contents);
// Handler for |floating_|'s "set-floating-position" signal. During this
// callback, we manually set the position of the status bubble.
static void OnSetFloatingPosition(
GtkFloatingContainer* container, GtkAllocation* allocation,
TabContentsContainerGtk* tab_contents_container);
// Adds |tab| to the container and starts showing it.
void PackTab(content::WebContents* tab);
// Stops showing |tab|.
void HideTab(content::WebContents* tab);
// Handle focus traversal on the tab contents container. Focus should not
// traverse to the overlay contents.
CHROMEGTK_CALLBACK_1(TabContentsContainerGtk, gboolean, OnFocus,
GtkDirectionType);
content::NotificationRegistrar registrar_;
// The WebContents for the currently selected tab. This will be showing
// unless there is an overlay contents.
content::WebContents* tab_;
// The current overlay contents (for Instant). If non-NULL, it will be
// visible.
content::WebContents* overlay_;
// The status bubble manager. Always non-NULL.
StatusBubbleGtk* status_bubble_;
// Top of the TabContentsContainerGtk widget hierarchy. A cross between a
// GtkBin and a GtkFixed, |floating_| has |expanded_| as its one "real" child,
// and the various things that hang off the bottom (status bubble, etc) have
// their positions manually set in OnSetFloatingPosition.
ui::OwnedWidgetGtk floating_;
// We insert and remove WebContents GtkWidgets into this expanded_. This
// should not be a GtkVBox since there were errors with timing where the vbox
// was horizontally split with the top half displaying the current WebContents
// and bottom half displaying the loading page.
GtkWidget* expanded_;
DISALLOW_COPY_AND_ASSIGN(TabContentsContainerGtk);
};
#endif // CHROME_BROWSER_UI_GTK_TAB_CONTENTS_CONTAINER_GTK_H_
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