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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_VIEWS_COLOR_CHOOSER_COLOR_CHOOSER_VIEW_H_
#define UI_VIEWS_COLOR_CHOOSER_COLOR_CHOOSER_VIEW_H_
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "third_party/skia/include/core/SkColor.h"
#include "third_party/skia/include/core/SkScalar.h"
#include "ui/views/controls/textfield/textfield_controller.h"
#include "ui/views/views_export.h"
#include "ui/views/widget/widget_delegate.h"
namespace views {
class ColorChooserListener;
class Textfield;
// ColorChooserView provides the UI to choose a color by mouse and/or keyboard.
// It is typically used for <input type="color">. Currently the user can
// choose a color by dragging over the bar for hue and the area for saturation
// and value.
class VIEWS_EXPORT ColorChooserView : public WidgetDelegateView,
public TextfieldController {
public:
ColorChooserView(ColorChooserListener* listener, SkColor initial_color);
~ColorChooserView() override;
// Called when its color value is changed in the web contents.
void OnColorChanged(SkColor color);
// Called when the user chooses a hue from the UI.
void OnHueChosen(SkScalar hue);
// Called when the user chooses saturation/value from the UI.
void OnSaturationValueChosen(SkScalar saturation, SkScalar value);
float hue() const { return hsv_[0]; }
float saturation() const { return hsv_[1]; }
float value() const { return hsv_[2]; }
void set_listener(ColorChooserListener* listener) { listener_ = listener; }
View* hue_view_for_testing();
View* saturation_value_view_for_testing();
Textfield* textfield_for_testing();
View* selected_color_patch_for_testing();
// TextfieldController overrides:
void ContentsChanged(Textfield* sender,
const base::string16& new_contents) override;
bool HandleKeyEvent(Textfield* sender,
const ui::KeyEvent& key_event) override;
private:
class HueView;
class SaturationValueView;
class SelectedColorPatchView;
// WidgetDelegate overrides:
bool CanMinimize() const override;
View* GetInitiallyFocusedView() override;
void WindowClosing() override;
// The current color in HSV coordinate.
SkScalar hsv_[3];
// The pointer to the current color chooser for callbacks. It doesn't take
// ownership on |listener_| so the user of this class should take care of
// its lifetime. See chrome/browser/ui/browser.cc for example.
ColorChooserListener* listener_;
// Child views. These are owned as part of the normal views hierarchy.
// The view of hue chooser.
HueView* hue_;
// The view of saturation/value choosing area.
SaturationValueView* saturation_value_;
// The textfield to write the color explicitly.
Textfield* textfield_;
// The rectangle to denote the selected color.
SelectedColorPatchView* selected_color_patch_;
DISALLOW_COPY_AND_ASSIGN(ColorChooserView);
};
} // namespace views
#endif // UI_VIEWS_COLOR_CHOOSER_COLOR_CHOOSER_VIEW_H_