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In this CL, the event handler keeps track of the delta from the previous pointer position so authors don't have to. R=eseidel@chromium.org Review URL: https://codereview.chromium.org/887793002
66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef SKY_ENGINE_CORE_FRAME_NEWEVENTHANDLER_H_
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#define SKY_ENGINE_CORE_FRAME_NEWEVENTHANDLER_H_
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#include <map>
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#include "sky/engine/core/dom/Node.h"
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#include "sky/engine/core/rendering/HitTestRequest.h"
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#include "sky/engine/core/rendering/HitTestResult.h"
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#include "sky/engine/wtf/HashMap.h"
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namespace blink {
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class LocalFrame;
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class WebGestureEvent;
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class WebKeyboardEvent;
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class WebPointerEvent;
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class WebWheelEvent;
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class NewEventHandler {
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WTF_MAKE_NONCOPYABLE(NewEventHandler);
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public:
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explicit NewEventHandler(LocalFrame&);
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~NewEventHandler();
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bool handlePointerEvent(const WebPointerEvent&);
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bool handleGestureEvent(const WebGestureEvent&);
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bool handleKeyboardEvent(const WebKeyboardEvent&);
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bool handleWheelEvent(const WebWheelEvent&);
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private:
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struct PointerState {
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RefPtr<Node> target;
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double x = 0;
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double y = 0;
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};
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bool handlePointerDownEvent(const WebPointerEvent&);
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bool handlePointerUpEvent(const WebPointerEvent&);
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bool handlePointerMoveEvent(const WebPointerEvent&);
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bool handlePointerCancelEvent(const WebPointerEvent&);
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bool dispatchGestureEvent(Node& target, const WebGestureEvent& event);
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bool dispatchPointerEvent(PointerState& state, const WebPointerEvent&);
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bool dispatchClickEvent(Node& capturingTarget, const WebPointerEvent&);
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bool dispatchKeyboardEvent(Node& target, const WebKeyboardEvent& event);
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bool dispatchWheelEvent(Node& target, const WebWheelEvent& event);
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Node* targetForKeyboardEvent() const;
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Node* targetForHitTestResult(const HitTestResult& hitTestResult);
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HitTestResult performHitTest(const LayoutPoint&);
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void updateSelectionForPointerDown(const HitTestResult&, const WebPointerEvent&);
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typedef std::map<int, PointerState> PointerStateMap;
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LocalFrame& m_frame;
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PointerStateMap m_stateForPointer;
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bool m_suppressNextCharEvent;
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};
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}
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#endif // SKY_ENGINE_CORE_FRAME_NEWEVENTHANDLER_H_
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