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// Copyright 2017 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 THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIA_CONTROLS_ELEMENTS_MEDIA_CONTROL_SLIDER_ELEMENT_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIA_CONTROLS_ELEMENTS_MEDIA_CONTROL_SLIDER_ELEMENT_H_
#include "third_party/blink/renderer/modules/media_controls/elements/media_control_input_element.h"
#include "third_party/blink/renderer/modules/modules_export.h"
namespace blink {
class Element;
class MediaControlsImpl;
class ResizeObserver;
// MediaControlInputElement with additional logic for sliders.
class MODULES_EXPORT MediaControlSliderElement
: public MediaControlInputElement {
USING_GARBAGE_COLLECTED_MIXIN(MediaControlSliderElement);
public:
void Trace(Visitor*) override;
// Stores the position of the segment in proportion from 0.0 to 1.0.
struct Position {
Position(double left, double width) : left(left), width(width) {}
double left;
double width;
};
// Width in CSS pixels * pageZoomFactor (ignores CSS transforms for
// simplicity; deliberately ignores pinch zoom's pageScaleFactor).
int TrackWidth();
void OnControlsShown();
void OnControlsHidden();
protected:
friend class MediaControlsImplTest;
class MediaControlSliderElementResizeObserverDelegate;
MediaControlSliderElement(MediaControlsImpl&);
void SetupBarSegments();
void SetBeforeSegmentPosition(Position);
void SetAfterSegmentPosition(Position);
void NotifyElementSizeChanged();
Element& GetTrackElement();
float ZoomFactor() const;
private:
Position before_segment_position_;
Position after_segment_position_;
Member<HTMLDivElement> segment_highlight_before_;
Member<HTMLDivElement> segment_highlight_after_;
Member<ResizeObserver> resize_observer_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIA_CONTROLS_ELEMENTS_MEDIA_CONTROL_SLIDER_ELEMENT_H_
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