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| 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_CHROMEOS_STATUS_STATUS_AREA_BUTTON_H_ | |
| 6 #define CHROME_BROWSER_CHROMEOS_STATUS_STATUS_AREA_BUTTON_H_ | |
| 7 #pragma once | |
| 8 | |
| 9 #include "base/compiler_specific.h" | |
| 10 #include "base/string16.h" | |
| 11 #include "ui/gfx/font.h" | |
| 12 #include "ui/views/controls/button/menu_button.h" | |
| 13 #include "ui/views/controls/button/menu_button_listener.h" | |
| 14 | |
| 15 // Button to be used to represent status and allow menus to be popped up. | |
| 16 // Shows current button state by drawing a border around the current icon. | |
| 17 class StatusAreaButton : public views::MenuButton { | |
| 18 public: | |
| 19 // Different text styles for different types of backgrounds. | |
| 20 enum TextStyle { | |
| 21 WHITE_PLAIN_BOLD, | |
| 22 GRAY_PLAIN_LIGHT, | |
| 23 WHITE_HALOED_BOLD, | |
| 24 GRAY_EMBOSSED_BOLD | |
| 25 }; | |
| 26 | |
| 27 class Delegate { | |
| 28 public: | |
| 29 // Commands to be passed to ExecuteCommand(). | |
| 30 enum Command { | |
| 31 SHOW_LANGUAGE_OPTIONS, | |
| 32 SHOW_NETWORK_OPTIONS, | |
| 33 SHOW_DATE_OPTIONS | |
| 34 }; | |
| 35 | |
| 36 // |command_id| can be any int, passed from the button to the delegate. | |
| 37 virtual bool ShouldExecuteStatusAreaCommand( | |
| 38 const views::View* button_view, int command_id) const = 0; | |
| 39 | |
| 40 virtual void ExecuteStatusAreaCommand( | |
| 41 const views::View* button_view, int command_id) = 0; | |
| 42 | |
| 43 // Get the style that should currently be used in rendering the button's | |
| 44 // text. | |
| 45 virtual TextStyle GetStatusAreaTextStyle() const = 0; | |
| 46 | |
| 47 // Handle visibility changes (e.g. resize the status area). | |
| 48 virtual void ButtonVisibilityChanged(views::View* button_view) = 0; | |
| 49 | |
| 50 protected: | |
| 51 virtual ~Delegate() {} | |
| 52 }; | |
| 53 | |
| 54 StatusAreaButton(Delegate* button_delegate, | |
| 55 views::MenuButtonListener* menu_button_listener); | |
| 56 virtual ~StatusAreaButton() {} | |
| 57 virtual void PaintButton(gfx::Canvas* canvas, PaintButtonMode mode) OVERRIDE; | |
| 58 | |
| 59 // Overrides TextButton's SetText to clear max text size before seting new | |
| 60 // text content so that the button size would fit the new text size. | |
| 61 virtual void SetText(const string16& text) OVERRIDE; | |
| 62 | |
| 63 // views::MenuButton overrides. | |
| 64 virtual bool Activate() OVERRIDE; | |
| 65 | |
| 66 // View overrides. | |
| 67 virtual gfx::Size GetPreferredSize() OVERRIDE; | |
| 68 virtual gfx::Insets GetInsets() const OVERRIDE; | |
| 69 virtual void OnThemeChanged() OVERRIDE; | |
| 70 virtual void SetVisible(bool visible) OVERRIDE; | |
| 71 virtual bool HitTest(const gfx::Point& l) const OVERRIDE; | |
| 72 | |
| 73 // Sets menu_active_. Override this to perform additional actions when | |
| 74 // menus are activated. | |
| 75 virtual void SetMenuActive(bool active); | |
| 76 | |
| 77 // Refresh the style used to paint this button's text. Schedules repaint. | |
| 78 void UpdateTextStyle(); | |
| 79 | |
| 80 bool menu_active() const { return menu_active_; } | |
| 81 | |
| 82 protected: | |
| 83 Delegate* delegate() { return delegate_; } | |
| 84 const Delegate* delegate() const { return delegate_; } | |
| 85 | |
| 86 // Subclasses should override these methods to return the correct dimensions. | |
| 87 virtual int icon_height(); | |
| 88 virtual int icon_width(); | |
| 89 | |
| 90 // Subclasses can override this method to return more or less padding. | |
| 91 // The padding is added to both the left and right side. | |
| 92 virtual int horizontal_padding(); | |
| 93 | |
| 94 // Insets to use for this button. | |
| 95 gfx::Insets insets_; | |
| 96 | |
| 97 // Controls whether or not the menu can be activated. This is independent of | |
| 98 // IsEnabled state, so that we can prevent the menu from appearing without | |
| 99 // affecting the appearance of the button. | |
| 100 bool menu_active_; | |
| 101 | |
| 102 private: | |
| 103 Delegate* delegate_; | |
| 104 | |
| 105 // Fonts used to render the button's text. | |
| 106 gfx::Font light_font_; | |
| 107 gfx::Font bold_font_; | |
| 108 | |
| 109 DISALLOW_COPY_AND_ASSIGN(StatusAreaButton); | |
| 110 }; | |
| 111 | |
| 112 #endif // CHROME_BROWSER_CHROMEOS_STATUS_STATUS_AREA_BUTTON_H_ | |
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