From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- gfx/layers/apz/util/TouchActionHelper.h | 46 +++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 gfx/layers/apz/util/TouchActionHelper.h (limited to 'gfx/layers/apz/util/TouchActionHelper.h') diff --git a/gfx/layers/apz/util/TouchActionHelper.h b/gfx/layers/apz/util/TouchActionHelper.h new file mode 100644 index 0000000000..b83d0d9ecb --- /dev/null +++ b/gfx/layers/apz/util/TouchActionHelper.h @@ -0,0 +1,46 @@ +/* -*- 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_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: + * http://www.w3.org/TR/pointerevents/#the-touch-action-css-property. + */ + static nsTArray GetAllowedTouchBehavior( + nsIWidget* aWidget, dom::Document* aDocument, + const WidgetTouchEvent& aPoint); + + static TouchBehaviorFlags GetAllowedTouchBehaviorForFrame(nsIFrame* aFrame); +}; + +} // namespace mozilla::layers + +#endif /*__mozilla_layers_TouchActionHelper_h__ */ -- cgit v1.2.3