Implement DraggedTabGtk, the object that handles rendering either a dragged t...

chrome/browser/gtk/tabs/tab_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_GTK_TABS_TAB_GTK_H_
 #define CHROME_BROWSER_GTK_TABS_TAB_GTK_H_
 
 #include "base/basictypes.h"
 #include "chrome/browser/gtk/tabs/tab_renderer_gtk.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
@@ skipping 62 matching lines @@
   TabDelegate* delegate() const { return delegate_; }
 
   GtkWidget* widget() const { return event_box_.get(); }
 
   // Used to set/check whether this Tab is being animated closed.
   void set_closing(bool closing) { closing_ = closing; }
   bool closing() const { return closing_; }
 
   // TabRendererGtk overrides:
   virtual bool IsSelected() const;
+  virtual bool IsVisible() const;
+  virtual void SetVisible(bool visible) const;
   virtual void CloseButtonResized(const gfx::Rect& bounds);
   virtual void Paint(GdkEventExpose* event);
 
+  // The callback that is called for every gdk event.  We use it to inspect for
+  // drag-motion events when the drag is outside of the source tab.
+  static void GdkEventHandler(GdkEvent* event, void* tab);
+
   // button-press-event handler that handles mouse clicks.
   static gboolean OnMousePress(GtkWidget* widget, GdkEventButton* event,
                                TabGtk* tab);
 
   // button-release-event handler that handles mouse click releases.
   static gboolean OnMouseRelease(GtkWidget* widget, GdkEventButton* event,
                                  TabGtk* tab);
 
   // enter-notify-event handler that signals when the mouse enters the tab.
   static gboolean OnEnterNotify(GtkWidget* widget, GdkEventCrossing* event,
@@ skipping 44 matching lines @@
 
   // The context menu controller.
   scoped_ptr<ContextMenuController> menu_controller_;
 
   // The close button.
   scoped_ptr<CustomDrawButton> close_button_;
 
   // The windowless widget used to collect input events for the tab.
   OwnedWidgetGtk event_box_;
 
+  // True if this tab is being dragged.
+  bool dragging_;
+
   DISALLOW_COPY_AND_ASSIGN(TabGtk);
 };
 
 #endif  // CHROME_BROWSER_GTK_TABS_TAB_GTK_H_