Gtk: Make click target of tabs match their appearance.

chrome/browser/ui/gtk/tabs/tab_strip_gtk.h

 // 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_TABS_TAB_STRIP_GTK_H_
 #define CHROME_BROWSER_UI_GTK_TABS_TAB_STRIP_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 #include <vector>
@@ skipping 92 matching lines @@
 
  protected:
   // TabStripModelObserver implementation:
   virtual void TabInsertedAt(TabContentsWrapper* contents,
                              int index,
                              bool foreground);
   virtual void TabDetachedAt(TabContentsWrapper* contents, int index);
   virtual void TabMoved(TabContentsWrapper* contents,
                         int from_index,
                         int to_index);
+  virtual void ActiveTabChanged(TabContentsWrapper* old_contents,
+                                TabContentsWrapper* new_contents,
+                                int index,
+                                bool user_gesture);
   virtual void TabSelectionChanged(const TabStripSelectionModel& old_model);
   virtual void TabChangedAt(TabContentsWrapper* contents, int index,
                             TabChangeType change_type);
   virtual void TabReplacedAt(TabStripModel* tab_strip_model,
                              TabContentsWrapper* old_contents,
                              TabContentsWrapper* new_contents,
                              int index);
   virtual void TabMiniStateChanged(TabContentsWrapper* contents, int index);
   virtual void TabBlockedStateChanged(TabContentsWrapper* contents,
                                       int index);
@@ skipping 98 matching lines @@
     // tabstrip and toolbar.
     GtkWidget* container;
 
     // The drop indicator image.
     GdkPixbuf* drop_arrow;
 
    private:
     DISALLOW_COPY_AND_ASSIGN(DropInfo);
   };
 
+  // Map signal handler that sets initial z-ordering.  The widgets need to be
+  // realized before we can set the stacking.  We use the "map" signal since the
+  // "realize" signal is called before the child widgets get realized.
+  CHROMEGTK_CALLBACK_0(TabStripGtk, void, OnMap);
+
   // expose-event handler that redraws the tabstrip
   CHROMEGTK_CALLBACK_1(TabStripGtk, gboolean, OnExpose, GdkEventExpose*);
 
   // size-allocate handler that gets the new bounds of the tabstrip.
   CHROMEGTK_CALLBACK_1(TabStripGtk, void, OnSizeAllocate, GtkAllocation*);
 
   // drag-motion handler that is signaled when the user performs a drag in the
   // tabstrip bounds.
   CHROMEGTK_CALLBACK_4(TabStripGtk, gboolean, OnDragMotion, GdkDragContext*,
                        gint, gint, guint);
@@ skipping 73 matching lines @@
   int tab_start_x() const;
 
   // Perform an animated resize-relayout of the TabStrip immediately. The
   // value returned indicates whether a resize actually took place.
   bool ResizeLayoutTabs();
 
   // Returns whether or not the cursor is currently in the "tab strip zone"
   // which is defined as the region above the TabStrip and a bit below it.
   bool IsCursorInTabStripZone() const;
 
+  // Reset the Z-ordering of tabs.
+  void ReStack();
+
   // Ensure that the message loop observer used for event spying is added and
   // removed appropriately so we can tell when to resize layout the tab strip.
   void AddMessageLoopObserver();
   void RemoveMessageLoopObserver();
 
   // Calculates the available width for tabs, assuming a Tab is to be closed.
   int GetAvailableWidthForTabs(TabGtk* last_tab) const;
 
   // Finds the index of the TabContents corresponding to |tab| in our
   // associated TabStripModel, or -1 if there is none (e.g. the specified |tab|
@@ skipping 131 matching lines @@
   // True if the tabstrip has already been added as a MessageLoop observer.
   bool added_as_message_loop_observer_;
 
   // Helper for performing tab selection as a result of dragging over a tab.
   HoverTabSelector hover_tab_selector_;
 
   DISALLOW_COPY_AND_ASSIGN(TabStripGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_TABS_TAB_STRIP_GTK_H_