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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_UI_LIBGTK2UI_APP_INDICATOR_ICON_H_
      6 #define CHROME_BROWSER_UI_LIBGTK2UI_APP_INDICATOR_ICON_H_
      7 
      8 #include "base/files/file_path.h"
      9 #include "base/memory/scoped_ptr.h"
     10 #include "chrome/browser/ui/libgtk2ui/gtk2_signal.h"
     11 #include "ui/linux_ui/status_icon_linux.h"
     12 
     13 typedef struct _AppIndicator AppIndicator;
     14 typedef struct _GtkWidget GtkWidget;
     15 
     16 namespace gfx {
     17 class ImageSkia;
     18 }
     19 
     20 namespace libgtk2ui {
     21 
     22 class AppIndicatorIcon : public StatusIconLinux {
     23  public:
     24   // The id uniquely identifies the new status icon from other chrome status
     25   // icons.
     26   explicit AppIndicatorIcon(std::string id,
     27                             const gfx::ImageSkia& image,
     28                             const string16& tool_tip);
     29   virtual ~AppIndicatorIcon();
     30 
     31   // Indicates whether libappindicator so could be opened.
     32   static bool CouldOpen();
     33 
     34   // Overridden from StatusIcon:
     35   virtual void SetImage(const gfx::ImageSkia& image) OVERRIDE;
     36   virtual void SetPressedImage(const gfx::ImageSkia& image) OVERRIDE;
     37   virtual void SetToolTip(const string16& tool_tip) OVERRIDE;
     38 
     39  protected:
     40   // Overridden from StatusIcon.
     41   virtual void UpdatePlatformContextMenu(ui::MenuModel* menu) OVERRIDE;
     42 
     43  private:
     44   void SetImageFromFile(base::FilePath icon_file_path);
     45   void SetMenu();
     46 
     47   // Adds a menu item to the top of the existing gtk_menu as a replacement for
     48   // the status icon click action or creates a new gtk menu with the menu item
     49   // if a menu doesn't exist. Clicking on this menu item should simulate a
     50   // status icon click by despatching a click event.
     51   void CreateClickActionReplacement();
     52   void DestroyMenu();
     53 
     54   static base::FilePath CreateTempImageFile(gfx::ImageSkia* image,
     55                                             int icon_change_count,
     56                                             std::string id);
     57   static void DeletePath(base::FilePath icon_file_path);
     58 
     59   // Updates all the enabled/checked states and the dynamic labels.
     60   void UpdateMenu();
     61 
     62   // Callback for when the status icon click replacement menu item is clicked.
     63   CHROMEGTK_CALLBACK_0(AppIndicatorIcon, void, OnClick);
     64 
     65   // Callback for when a menu item is clicked.
     66   CHROMEGTK_CALLBACK_0(AppIndicatorIcon, void, OnMenuItemActivated);
     67 
     68   std::string id_;
     69   std::string tool_tip_;
     70 
     71   // Gtk status icon wrapper
     72   AppIndicator* icon_;
     73 
     74   GtkWidget* gtk_menu_;
     75   ui::MenuModel* menu_model_;
     76 
     77   base::FilePath icon_file_path_;
     78   int icon_change_count_;
     79   bool block_activation_;
     80 };
     81 
     82 }  // namespace libgtk2ui
     83 
     84 #endif  // CHROME_BROWSER_UI_LIBGTK2UI_APP_INDICATOR_ICON_H_
     85