gecko-dev/layout/base/PositionedEventTargeting.h
2013-10-02 12:46:03 +09:00

33 lines
993 B
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_PositionedEventTargeting_h
#define mozilla_PositionedEventTargeting_h
#include <stdint.h>
#include "mozilla/EventForwards.h"
class nsIFrame;
struct nsPoint;
namespace mozilla {
enum {
INPUT_IGNORE_ROOT_SCROLL_FRAME = 0x01
};
/**
* Finds the target frame for a pointer event given the event type and location.
* This can look for frames within a rectangle surrounding the actual location
* that are suitable targets, to account for inaccurate pointing devices.
*/
nsIFrame*
FindFrameTargetedByInputEvent(const WidgetGUIEvent* aEvent,
nsIFrame* aRootFrame,
const nsPoint& aPointRelativeToRootFrame,
uint32_t aFlags = 0);
}
#endif /* mozilla_PositionedEventTargeting_h */