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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 UI_VIEWS_COLOR_CHOOSER_COLOR_CHOOSER_VIEW_H_ |
| 6 #define UI_VIEWS_COLOR_CHOOSER_COLOR_CHOOSER_VIEW_H_ |
| 7 #pragma once |
| 8 |
| 9 #include "base/basictypes.h" |
| 10 #include "base/compiler_specific.h" |
| 11 #include "third_party/skia/include/core/SkColor.h" |
| 12 #include "third_party/skia/include/core/SkScalar.h" |
| 13 #include "ui/views/controls/textfield/textfield_controller.h" |
| 14 #include "ui/views/views_export.h" |
| 15 #include "ui/views/widget/widget_delegate.h" |
| 16 |
| 17 namespace views { |
| 18 |
| 19 class ColorChooserListener; |
| 20 class KeyEvent; |
| 21 class Textfield; |
| 22 |
| 23 // ColorChooserView provides the UI to choose a color by mouse and/or keyboard. |
| 24 // It is typically used for <input type="color">. Currently the user can |
| 25 // choose a color by dragging over the bar for hue and the area for saturation |
| 26 // and value. |
| 27 class VIEWS_EXPORT ColorChooserView : public WidgetDelegateView, |
| 28 public TextfieldController { |
| 29 public: |
| 30 ColorChooserView(ColorChooserListener* listener, SkColor initial_color); |
| 31 virtual ~ColorChooserView(); |
| 32 |
| 33 // Called when its color value is changed in the web contents. |
| 34 void OnColorChanged(SkColor color); |
| 35 |
| 36 // Called when the user chooses a hue from the UI. |
| 37 void OnHueChosen(SkScalar hue); |
| 38 |
| 39 // Called when the user chooses saturation/value from the UI. |
| 40 void OnSaturationValueChosen(SkScalar saturation, SkScalar value); |
| 41 |
| 42 float hue() const { return hsv_[0]; } |
| 43 float saturation() const { return hsv_[1]; } |
| 44 float value() const { return hsv_[2]; } |
| 45 |
| 46 private: |
| 47 class HueView; |
| 48 class SaturationValueView; |
| 49 |
| 50 // WidgetDelegate overrides: |
| 51 virtual View* GetInitiallyFocusedView() OVERRIDE; |
| 52 virtual ui::ModalType GetModalType() const OVERRIDE; |
| 53 virtual void WindowClosing() OVERRIDE; |
| 54 virtual View* GetContentsView() OVERRIDE; |
| 55 |
| 56 // TextfieldController overrides: |
| 57 virtual void ContentsChanged(Textfield* sender, |
| 58 const string16& new_contents) OVERRIDE; |
| 59 virtual bool HandleKeyEvent(Textfield* sender, |
| 60 const KeyEvent& key_event) OVERRIDE; |
| 61 |
| 62 // The current color in HSV coordinate. |
| 63 SkScalar hsv_[3]; |
| 64 |
| 65 // The pointer to the current color chooser for callbacks. It doesn't take |
| 66 // ownership on |listener_| so the user of this class should take care of |
| 67 // its lifetime. See chrome/browser/ui/browser.cc for example. |
| 68 ColorChooserListener* listener_; |
| 69 |
| 70 // Child views. These are owned as part of the normal views hierarchy. |
| 71 // The view of hue chooser. |
| 72 HueView* hue_; |
| 73 |
| 74 // The view of saturation/value choosing area. |
| 75 SaturationValueView* saturation_value_; |
| 76 |
| 77 // The textfield to write the color explicitly. |
| 78 Textfield* textfield_; |
| 79 |
| 80 DISALLOW_COPY_AND_ASSIGN(ColorChooserView); |
| 81 }; |
| 82 |
| 83 } // namespace views |
| 84 |
| 85 #endif // UI_VIEWS_COLOR_CHOOSER_COLOR_CHOOSER_VIEW_H_ |
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