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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.
#ifndef CHROME_BROWSER_GTK_TAB_CONTENTS_CONTAINER_GTK_H_
#define CHROME_BROWSER_GTK_TAB_CONTENTS_CONTAINER_GTK_H_
#pragma once
#include <gtk/gtk.h>
#include "base/basictypes.h"
#include "chrome/browser/gtk/owned_widget_gtk.h"
#include "chrome/browser/gtk/view_id_util.h"
#include "chrome/common/notification_observer.h"
#include "chrome/common/notification_registrar.h"
class RenderViewHost;
class StatusBubbleGtk;
class TabContents;
typedef struct _GtkFloatingContainer GtkFloatingContainer;
class TabContentsContainerGtk : public NotificationObserver,
public ViewIDUtil::Delegate {
public:
explicit TabContentsContainerGtk(StatusBubbleGtk* status_bubble);
~TabContentsContainerGtk();
void Init();
// Make the specified tab visible.
void SetTabContents(TabContents* tab_contents);
TabContents* GetTabContents() const { return tab_contents_; }
// Remove the tab from the hierarchy.
void DetachTabContents(TabContents* tab_contents);
// NotificationObserver implementation.
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details);
GtkWidget* widget() { return floating_.get(); }
// ViewIDUtil::Delegate implementation ---------------------------------------
virtual GtkWidget* GetWidgetForViewID(ViewID id);
private:
// Add or remove observers for events that we care about.
void AddObservers();
void RemoveObservers();
// Called when the RenderViewHost of the hosted TabContents has changed, e.g.
// to show an interstitial page.
void RenderViewHostChanged(RenderViewHost* old_host,
RenderViewHost* new_host);
// Called when a TabContents is destroyed. This gives us a chance to clean
// up our internal state if the TabContents is somehow destroyed before we
// get notified.
void TabContentsDestroyed(TabContents* 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);
NotificationRegistrar registrar_;
// The currently visible TabContents.
TabContents* tab_contents_;
// 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.
OwnedWidgetGtk floating_;
// We insert and remove TabContents 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 TabContents
// and bottom half displaying the loading page.
GtkWidget* expanded_;
DISALLOW_COPY_AND_ASSIGN(TabContentsContainerGtk);
};
#endif // CHROME_BROWSER_GTK_TAB_CONTENTS_CONTAINER_GTK_H_
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