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- // Copyright 2018 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 ASH_SYSTEM_UNIFIED_UNIFIED_SLIDER_VIEW_H_
- #define ASH_SYSTEM_UNIFIED_UNIFIED_SLIDER_VIEW_H_
- #include "ash/style/icon_button.h"
- #include "ui/views/controls/slider.h"
- #include "ui/views/view.h"
- namespace gfx {
- struct VectorIcon;
- } // namespace gfx
- namespace views {
- class Label;
- } // namespace views
- namespace ash {
- class UnifiedSliderListener : public views::SliderListener {
- public:
- // Instantiates UnifiedSliderView. The view will be onwed by views hierarchy.
- // The view should be always deleted after the controller is destructed.
- virtual views::View* CreateView() = 0;
- ~UnifiedSliderListener() override = default;
- };
- // Base view class of a slider row in UnifiedSystemTray. It has a button on the
- // left side and a slider on the right side.
- class UnifiedSliderView : public views::View {
- public:
- // If |readonly| is set, the slider will not accept any user events.
- UnifiedSliderView(views::Button::PressedCallback callback,
- UnifiedSliderListener* listener,
- const gfx::VectorIcon& icon,
- int accessible_name_id,
- bool readonly = false);
- UnifiedSliderView(const UnifiedSliderView&) = delete;
- UnifiedSliderView& operator=(const UnifiedSliderView&) = delete;
- ~UnifiedSliderView() override;
- IconButton* button() { return button_; }
- views::Slider* slider() { return slider_; }
- views::Label* toast_label() { return toast_label_; }
- // Sets a slider value. If |by_user| is false, accessibility events will not
- // be triggered.
- void SetSliderValue(float value, bool by_user);
- // views::View:
- const char* GetClassName() const override;
- void OnThemeChanged() override;
- protected:
- void CreateToastLabel();
- private:
- // Unowned. Owned by views hierarchy.
- IconButton* const button_;
- views::Slider* const slider_;
- views::Label* toast_label_ = nullptr;
- };
- } // namespace ash
- #endif // ASH_SYSTEM_UNIFIED_UNIFIED_SLIDER_VIEW_H_
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