Multi-tab selection for Linux.

chrome/browser/ui/gtk/tabs/tab_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_GTK_H_
 #define CHROME_BROWSER_UI_GTK_TABS_TAB_GTK_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/message_loop.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/gtk/tabs/tab_renderer_gtk.h"
 #include "ui/base/gtk/gtk_signal.h"
 
+class TabStripMenuController;
+
 namespace gfx {
 class Path;
 }
 
 namespace ui {
 class ThemeProvider;
 }
 
 class TabGtk : public TabRendererGtk,
                public MessageLoopForUI::Observer {
  public:
   // An interface implemented by an object that can help this Tab complete
   // various actions. The index parameter is the index of this Tab in the
   // TabRenderer::Model.
   class TabDelegate {
    public:
+    // Returns true if the specified Tab is active.
+    virtual bool IsTabActive(const TabGtk* tab) const = 0;
+
     // Returns true if the specified Tab is selected.
     virtual bool IsTabSelected(const TabGtk* tab) const = 0;
 
     // Returns true if the specified Tab is pinned.
     virtual bool IsTabPinned(const TabGtk* tab) const = 0;
 
     // Returns true if the specified Tab is detached.
     virtual bool IsTabDetached(const TabGtk* tab) const = 0;
 
-    // Selects the specified Tab.
-    virtual void SelectTab(TabGtk* tab) = 0;
+    // Activates the specified Tab.
+    virtual void ActivateTab(TabGtk* tab) = 0;
+
+    // Toggles selection of the specified Tab.
+    virtual void ToggleTabSelection(TabGtk* tab) = 0;
+
+    // Extends selection from the anchor to the specified Tab.
+    virtual void ExtendTabSelection(TabGtk* tab) = 0;
 
     // Closes the specified Tab.
     virtual void CloseTab(TabGtk* tab) = 0;
 
     // Returns true if the specified command is enabled for the specified Tab.
     virtual bool IsCommandEnabledForTab(
         TabStripModel::ContextMenuCommand command_id,
         const TabGtk* tab) const = 0;
 
     // Executes the specified command for the specified Tab.
@@ skipping 21 matching lines @@
 
     // Returns true if the associated TabStrip's delegate supports tab moving or
     // detaching. Used by the Frame to determine if dragging on the Tab
     // itself should move the window in cases where there's only one
     // non drag-able Tab.
     virtual bool HasAvailableDragActions() const = 0;
 
     // Returns the theme provider for icons and colors.
     virtual ui::ThemeProvider* GetThemeProvider() = 0;
 
+    // Returns a context menu controller for |tab|. Caller takes ownership of
+    // the pointed object.
+    virtual TabStripMenuController* GetTabStripMenuControllerForTab(
+        TabGtk* tab) = 0;
+
    protected:
     virtual ~TabDelegate() {}
   };
 
   explicit TabGtk(TabDelegate* delegate);
   virtual ~TabGtk();
 
   // Access the delegate.
   TabDelegate* delegate() const { return delegate_; }
 
   GtkWidget* widget() const { return event_box_; }
 
   // Used to set/check whether this Tab is being animated closed.
   void set_closing(bool closing) { closing_ = closing; }
   bool closing() const { return closing_; }
 
   // Used to set/check whether this Tab is being dragged.
   void set_dragging(bool dragging) { dragging_ = dragging; }
   bool dragging() const { return dragging_; }
 
   // TabRendererGtk overrides:
+  virtual bool IsActive() const;
   virtual bool IsSelected() const;
   virtual bool IsVisible() const;
   virtual void SetVisible(bool visible) const;
   virtual void CloseButtonClicked();
   virtual void UpdateData(TabContents* contents, bool app, bool loading_only);
   virtual void SetBounds(const gfx::Rect& bounds);
 
  private:
-  class ContextMenuController;
   class TabGtkObserverHelper;
-  friend class ContextMenuController;
 
   // MessageLoop::Observer implementation:
   virtual void WillProcessEvent(GdkEvent* event);
   virtual void DidProcessEvent(GdkEvent* event);
 
   // button-press-event handler that handles mouse clicks.
   CHROMEGTK_CALLBACK_1(TabGtk, gboolean, OnButtonPressEvent, GdkEventButton*);
 
   // button-release-event handler that handles mouse click releases.
   CHROMEGTK_CALLBACK_1(TabGtk, gboolean, OnButtonReleaseEvent, GdkEventButton*);
@@ skipping 39 matching lines @@
   // user gestures.
   TabDelegate* delegate_;
 
   // True if the tab is being animated closed.
   bool closing_;
 
   // True if the tab is being dragged.
   bool dragging_;
 
   // The context menu controller.
-  scoped_ptr<ContextMenuController> menu_controller_;
+  scoped_ptr<TabStripMenuController> menu_controller_;
 
   // The windowless widget used to collect input events for the tab.  We can't
   // use an OwnedWidgetGtk because of the way the dragged tab controller
   // destroys the source tab.  The source tab is destroyed when the drag ends
   // before we let gtk handle the end of the drag.  This results in the widget
   // having an extra reference, which will cause OwnedWidgetGtk.Destroy to
   // DCHECK.
   GtkWidget* event_box_;
 
   // A copy of the last button press event, used to initiate a drag.
@@ skipping 18 matching lines @@
   // mouse release event on the the dragged widget, otherwise, we don't know
   // when the drag has ended when the user presses space or enter.  We queue
   // a task to end the drag and only run it if GTK+ didn't send us the
   // drag-failed event.
   ScopedRunnableMethodFactory<TabGtk> drag_end_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TabGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_TABS_TAB_GTK_H_