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 ASH_WM_CAPTION_BUTTONS_FRAME_CAPTION_BUTTON_H_ 6 #define ASH_WM_CAPTION_BUTTONS_FRAME_CAPTION_BUTTON_H_ 7 8 #include "ash/ash_export.h" 9 #include "ash/wm/caption_buttons/caption_button_types.h" 10 #include "base/memory/scoped_ptr.h" 11 #include "ui/gfx/image/image_skia.h" 12 #include "ui/views/controls/button/image_button.h" 13 14 namespace gfx { 15 class SlideAnimation; 16 } 17 18 namespace ash { 19 20 // Base class for the window caption buttons (minimize, maximize, restore, 21 // close). 22 class ASH_EXPORT FrameCaptionButton : public views::ImageButton { 23 public: 24 enum Animate { 25 ANIMATE_YES, 26 ANIMATE_NO 27 }; 28 29 enum Style { 30 // Restored tabbed browser windows. 31 STYLE_TALL_RESTORED, 32 33 // All other restored windows. 34 STYLE_SHORT_RESTORED, 35 36 // Maximized or fullscreen windows. 37 STYLE_SHORT_MAXIMIZED_OR_FULLSCREEN 38 }; 39 40 static const char kViewClassName[]; 41 42 FrameCaptionButton(views::ButtonListener* listener, CaptionButtonIcon icon); 43 virtual ~FrameCaptionButton(); 44 45 // Sets the button's icon. If |animate| is ANIMATE_YES, the button crossfades 46 // to the new icon. 47 void SetIcon(CaptionButtonIcon icon, Animate animate); 48 49 // Sets the button's style. The transition to the new style is not animated. 50 void SetStyle(Style style); 51 52 // views::View overrides: 53 virtual const char* GetClassName() const OVERRIDE; 54 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; 55 icon()56 CaptionButtonIcon icon() const { 57 return icon_; 58 } 59 60 protected: 61 // views::CustomButton overrides: 62 virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE; 63 virtual void StateChanged() OVERRIDE; 64 65 private: 66 // Updates the button's images based on the current icon and style. 67 void UpdateImages(); 68 69 // Sets the button's images based on the given ids. 70 void SetImages(int normal_image_id, int hot_image_id, int pushed_image_id); 71 72 // gfx::AnimationDelegate override: 73 virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE; 74 75 // The button's current icon. 76 CaptionButtonIcon icon_; 77 78 // The button's current style. 79 Style style_; 80 81 // The scale at which the button was previously painted. 82 float last_paint_scale_; 83 84 // The image to crossfade from. 85 gfx::ImageSkia crossfade_image_; 86 87 scoped_ptr<gfx::SlideAnimation> animation_; 88 89 DISALLOW_COPY_AND_ASSIGN(FrameCaptionButton); 90 }; 91 92 } // namespace ash 93 94 #endif // ASH_WM_CAPTION_BUTTONS_FRAME_CAPTION_BUTTON_H_ 95