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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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"
#include "nsLayoutUtils.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(
WidgetGUIEvent* aEvent, RelativeTo aRootFrame,
const nsPoint& aPointRelativeToRootFrame, uint32_t aFlags = 0);
class MOZ_RAII EventRetargetSuppression {
public:
EventRetargetSuppression();
~EventRetargetSuppression();
static bool IsActive();
private:
static uint32_t sSuppressionCount;
};
} // namespace mozilla
#endif /* mozilla_PositionedEventTargeting_h */