GTK: Implement BlockedPopupContainerView for linux.

chrome/browser/tab_contents/tab_contents_view_gtk.h

 // 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_TAB_CONTENTS_TAB_CONTENTS_VIEW_GTK_H_
 #define CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include "base/scoped_ptr.h"
 #include "chrome/browser/gtk/focus_store_gtk.h"
 #include "chrome/browser/tab_contents/tab_contents_view.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/notification_registrar.h"
 #include "chrome/common/owned_widget_gtk.h"
 
+class BlockedPopupContainerViewGtk;
 class RenderViewContextMenuGtk;
 class SadTabGtk;
+typedef struct _GtkFloatingContainer GtkFloatingContainer;
 
 class TabContentsViewGtk : public TabContentsView,
                            public NotificationObserver {
  public:
   // The corresponding TabContents is passed in the constructor, and manages our
   // lifetime. This doesn't need to be the case, but is this way currently
   // because that's what was easiest when they were split.
   explicit TabContentsViewGtk(TabContents* tab_contents);
   virtual ~TabContentsViewGtk();
 
+  // Unlike Windows, the BlockedPopupContainerView needs to collaborate with
+  // the TabContentsViewGtk to position the notification.
+  void AttachBlockedPopupView(BlockedPopupContainerViewGtk* popup_view);
+  void RemoveBlockedPopupView(BlockedPopupContainerViewGtk* popup_view);
+
   // TabContentsView implementation --------------------------------------------
 
   virtual void CreateView();
   virtual RenderWidgetHostView* CreateViewForWidget(
       RenderWidgetHost* render_widget_host);
 
   virtual gfx::NativeView GetNativeView() const;
   virtual gfx::NativeView GetContentNativeView() const;
   virtual gfx::NativeWindow GetTopLevelNativeWindow() const;
   virtual void GetContainerBounds(gfx::Rect* out) const;
@@ skipping 28 matching lines @@
 
   // We keep track of the timestamp of the latest mousedown event.
   static gboolean OnMouseDown(GtkWidget* widget,
                               GdkEventButton* event, TabContentsViewGtk* view);
 
   // Used to propagate size changes on |fixed_| to its children.
   static gboolean OnSizeAllocate(GtkWidget* widget,
                                  GtkAllocation* config,
                                  TabContentsViewGtk* view);
 
+  static void OnSetFloatingPosition(
+      GtkFloatingContainer* floating_container, GtkAllocation* allocation,
+      TabContentsViewGtk* tab_contents_view);
+
+  // Contains |fixed_| as its GtkBin member and a possible floating widget from
+  // |popup_view_|.
+  OwnedWidgetGtk floating_;
+
   // This container holds the tab's web page views. It is a GtkFixed so that we
   // can control the size of the web pages.
-  OwnedWidgetGtk fixed_;
+  GtkWidget* fixed_;
 
   // The context menu is reset every time we show it, but we keep a pointer to
   // between uses so that it won't go out of scope before we're done with it.
   scoped_ptr<RenderViewContextMenuGtk> context_menu_;
 
   // The event time for the last mouse down we handled. We need this to properly
   // show context menus.
   guint32 last_mouse_down_time_;
 
   // Used to get notifications about renderers coming and going.
   NotificationRegistrar registrar_;
 
   scoped_ptr<SadTabGtk> sad_tab_;
 
   FocusStoreGtk focus_store_;
 
+  BlockedPopupContainerViewGtk* popup_view_;
+
   DISALLOW_COPY_AND_ASSIGN(TabContentsViewGtk);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_GTK_H_