mirror of
https://bitbucket.org/chromiumembedded/cef
synced 2024-12-13 10:06:28 +01:00
60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
// Copyright (c) 2017 The Chromium Embedded Framework Authors.
|
|
// Portions 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 CEF_LIBCEF_BROWSER_OSR_MOTION_EVENT_OSR_H_
|
|
#define CEF_LIBCEF_BROWSER_OSR_MOTION_EVENT_OSR_H_
|
|
#pragma once
|
|
|
|
#include "include/cef_base.h"
|
|
|
|
#include "third_party/blink/public/platform/web_touch_event.h"
|
|
#include "ui/events/gesture_detection/motion_event_generic.h"
|
|
|
|
// Implementation of MotionEvent which takes a stream of CefTouchEvents.
|
|
// This class is based on ui::MotionEventAura.
|
|
class CefMotionEventOSR : public ui::MotionEventGeneric {
|
|
public:
|
|
CefMotionEventOSR();
|
|
~CefMotionEventOSR() override;
|
|
|
|
int GetSourceDeviceId(size_t pointer_index) const override;
|
|
|
|
// Returns true if the touch was valid.
|
|
bool OnTouch(const CefTouchEvent& touch);
|
|
|
|
// We can't cleanup removed touch points immediately upon receipt of a
|
|
// TouchCancel or TouchRelease, as the MotionEvent needs to be able to report
|
|
// information about those touch events. Once the MotionEvent has been
|
|
// processed, we call CleanupRemovedTouchPoints to do the required
|
|
// book-keeping.
|
|
void CleanupRemovedTouchPoints(const CefTouchEvent& event);
|
|
|
|
// Reset unchanged touch point to StateStationary for touchmove and
|
|
// touchcancel to make sure only send one ack per WebTouchEvent.
|
|
void MarkUnchangedTouchPointsAsStationary(blink::WebTouchEvent* event,
|
|
const CefTouchEvent& cef_event);
|
|
|
|
private:
|
|
// Chromium can't cope with touch ids >31, so let's map the incoming
|
|
// ids to a safe range.
|
|
int id_map_[blink::WebTouchEvent::kTouchesLengthCap];
|
|
|
|
int LookupId(int id);
|
|
int AddId(int id);
|
|
void RemoveId(int id);
|
|
|
|
bool AddTouch(const CefTouchEvent& touch, int id);
|
|
void UpdateTouch(const CefTouchEvent& touch, int id);
|
|
void UpdateCachedAction(const CefTouchEvent& touch, int id);
|
|
bool IsValidIndex(int index) const;
|
|
ui::PointerProperties GetPointerPropertiesFromTouchEvent(
|
|
const CefTouchEvent& touch,
|
|
int id);
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(CefMotionEventOSR);
|
|
};
|
|
|
|
#endif
|