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/*
* Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_SLIDER_THUMB_ELEMENT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_SLIDER_THUMB_ELEMENT_H_
#include "third_party/blink/renderer/core/html/html_div_element.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
namespace blink {
class HTMLInputElement;
class Event;
class TouchEvent;
class SliderThumbElement final : public HTMLDivElement {
public:
static SliderThumbElement* Create(Document&);
SliderThumbElement(Document&);
void SetPositionFromValue();
void DragFrom(const LayoutPoint&);
void DefaultEventHandler(Event&) override;
bool WillRespondToMouseMoveEvents() override;
bool WillRespondToMouseClickEvents() override;
void DetachLayoutTree(const AttachContext& = AttachContext()) override;
const AtomicString& ShadowPseudoId() const override;
HTMLInputElement* HostInput() const;
void SetPositionFromPoint(const LayoutPoint&);
void StopDragging();
private:
LayoutObject* CreateLayoutObject(const ComputedStyle&) override;
scoped_refptr<ComputedStyle> CustomStyleForLayoutObject() final;
Element* CloneWithoutAttributesAndChildren(Document&) const override;
bool IsDisabledFormControl() const override;
bool MatchesReadOnlyPseudoClass() const override;
bool MatchesReadWritePseudoClass() const override;
const Node* FocusDelegate() const override;
void StartDragging();
bool
in_drag_mode_; // Mouse only. Touch is handled by SliderContainerElement.
};
inline Element* SliderThumbElement::CloneWithoutAttributesAndChildren(
Document& factory) const {
return Create(factory);
}
// FIXME: There are no ways to check if a node is a SliderThumbElement.
DEFINE_ELEMENT_TYPE_CASTS(SliderThumbElement, IsHTMLElement());
class SliderContainerElement final : public HTMLDivElement {
public:
enum Direction {
kHorizontal,
kVertical,
kNoMove,
};
explicit SliderContainerElement(Document&);
DECLARE_NODE_FACTORY(SliderContainerElement);
HTMLInputElement* HostInput() const;
void DefaultEventHandler(Event&) override;
void HandleTouchEvent(TouchEvent*);
void UpdateTouchEventHandlerRegistry();
void DidMoveToNewDocument(Document&) override;
void RemoveAllEventListeners() override;
private:
LayoutObject* CreateLayoutObject(const ComputedStyle&) override;
scoped_refptr<ComputedStyle> CustomStyleForLayoutObject() final;
const AtomicString& ShadowPseudoId() const override;
Direction GetDirection(LayoutPoint&, LayoutPoint&);
bool CanSlide();
bool has_touch_event_handler_;
bool touch_started_;
Direction sliding_direction_;
LayoutPoint start_point_;
};
} // namespace blink
#endif
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