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/* 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_layers_TouchActionHelper_h_
#define _mozilla_layers_TouchActionHelper_h_
#include "mozilla/layers/LayersTypes.h" // for TouchBehaviorFlags
#include "RelativeTo.h" // for RelativeTo
class nsIWidget;
namespace mozilla {
namespace dom {
class Document;
} // namespace dom
class WidgetTouchEvent;
} // namespace mozilla
namespace mozilla::layers {
/*
* Helper class to figure out the allowed touch behavior for frames, as per
* the touch-action spec.
*/
class TouchActionHelper {
public:
/*
* Performs hit testing on content, finds frame that corresponds to the touch
* points of aEvent and retrieves touch-action CSS property value from it
* according the rules specified in the spec:
*/
static nsTArray<TouchBehaviorFlags> GetAllowedTouchBehavior(
nsIWidget* aWidget, dom::Document* aDocument,
const WidgetTouchEvent& aPoint);
static TouchBehaviorFlags GetAllowedTouchBehaviorForFrame(nsIFrame* aFrame);
};
} // namespace mozilla::layers
#endif /*_mozilla_layers_TouchActionHelper_h_ */