chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.h

   1 // Copyright (c) 2012 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_GTK_INFOBARS_TRANSLATE_INFOBAR_BASE_GTK_H_
   6 #define CHROME_BROWSER_UI_GTK_INFOBARS_TRANSLATE_INFOBAR_BASE_GTK_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "chrome/browser/ui/gtk/infobars/infobar_gtk.h"
  10 #include "ui/gfx/animation/animation_delegate.h"
  11
  12 class TranslateInfoBarDelegate;
  13
  14 // This class contains some of the base functionality that translate infobars
  15 // use.
  16 class TranslateInfoBarBase : public InfoBarGtk {
  17  protected:
  18   explicit TranslateInfoBarBase(scoped_ptr<TranslateInfoBarDelegate> delegate);
  19   virtual ~TranslateInfoBarBase();
  20
  21   // InfoBarGtk:
  22   virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE;
  23   virtual void PlatformSpecificSetOwner() OVERRIDE;
  24   virtual void GetTopColor(InfoBarDelegate::Type type,
  25                            double* r, double* g, double* b) OVERRIDE;
  26   virtual void GetBottomColor(InfoBarDelegate::Type type,
  27                               double* r, double* g, double* b) OVERRIDE;
  28
  29   // Sub-classes that want to have the options menu button showing should
  30   // override and return true.
  31   virtual bool ShowOptionsMenuButton() const;
  32
  33   // Creates a combobox that displays the languages currently available.
  34   // |selected_language| is the language index (as used in the
  35   // TranslateInfoBarDelegate) that should be selected initially.
  36   // |exclude_language| is the language index of the language that should not be
  37   // included in the list (TranslateInfoBarDelegate::kNoIndex means no language
  38   // excluded).
  39   GtkWidget* CreateLanguageCombobox(size_t selected_language,
  40                                     size_t exclude_language);
  41
  42   // Given an above-constructed combobox, returns the currently selected
  43   // language id.
  44   static size_t GetLanguageComboboxActiveId(GtkComboBox* combo);
  45
  46   // Convenience to retrieve the TranslateInfoBarDelegate for this infobar.
  47   TranslateInfoBarDelegate* GetDelegate();
  48
  49  private:
  50   // To be able to map from language id <-> entry in the combo box, we
  51   // store the language id in the combo box data model in addition to the
  52   // displayed name.
  53   enum {
  54     LANGUAGE_COMBO_COLUMN_ID,
  55     LANGUAGE_COMBO_COLUMN_NAME,
  56     LANGUAGE_COMBO_COLUMN_COUNT
  57   };
  58
  59   CHROMEGTK_CALLBACK_0(TranslateInfoBarBase, void, OnOptionsClicked);
  60
  61   // A percentage to average the normal page action background with the error
  62   // background. When 0, the infobar background should be pure PAGE_ACTION_TYPE.
  63   // When 1, the infobar background should be pure WARNING_TYPE.
  64   double background_error_percent_;
  65
  66   // Changes the color of the background from normal to error color and back.
  67   scoped_ptr<gfx::SlideAnimation> background_color_animation_;
  68
  69   // The model for the current menu displayed.
  70   scoped_ptr<ui::MenuModel> menu_model_;
  71
  72   DISALLOW_COPY_AND_ASSIGN(TranslateInfoBarBase);
  73 };
  74
  75 #endif  // CHROME_BROWSER_UI_GTK_INFOBARS_TRANSLATE_INFOBAR_BASE_GTK_H_