1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/widget/xpwidgets/ContentHelper.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,40 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef __mozilla_widget_ContentHelper_h__
1.10 +#define __mozilla_widget_ContentHelper_h__
1.11 +
1.12 +#include "nsIFrame.h"
1.13 +#include "nsIWidget.h"
1.14 +#include "mozilla/layers/APZCTreeManager.h"
1.15 +
1.16 +namespace mozilla {
1.17 +namespace widget {
1.18 +
1.19 +/*
1.20 + * Allow different platform widgets to access Content/DOM stuff.
1.21 + */
1.22 +class ContentHelper
1.23 +{
1.24 + typedef mozilla::layers::AllowedTouchBehavior AllowedTouchBehavior;
1.25 + typedef uint32_t TouchBehaviorFlags;
1.26 +
1.27 +private:
1.28 + static uint32_t GetTouchActionFromFrame(nsIFrame* aFrame);
1.29 + static void UpdateAllowedBehavior(uint32_t aTouchActionValue, bool aConsiderPanning, TouchBehaviorFlags& aOutBehavior);
1.30 +
1.31 +public:
1.32 + /*
1.33 + * Performs hit testing on content, finds frame that corresponds to the aPoint and retrieves
1.34 + * touch-action css property value from it according the rules specified in the spec:
1.35 + * http://www.w3.org/TR/pointerevents/#the-touch-action-css-property.
1.36 + */
1.37 + static TouchBehaviorFlags GetAllowedTouchBehavior(nsIWidget* aWidget, const nsIntPoint& aPoint);
1.38 +};
1.39 +
1.40 +}
1.41 +}
1.42 +
1.43 +#endif /*__mozilla_widget_ContentHelper_h__ */
1.44 \ No newline at end of file
