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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /layout/base/TouchManager.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'layout/base/TouchManager.h')
-rw-r--r-- | layout/base/TouchManager.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/layout/base/TouchManager.h b/layout/base/TouchManager.h new file mode 100644 index 0000000000..0e12c25c7d --- /dev/null +++ b/layout/base/TouchManager.h @@ -0,0 +1,84 @@ +/* -*- 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/. + */ + +/* Description of TouchManager class. + * Incapsulate code related with work of touch events. + */ + +#ifndef TouchManager_h_ +#define TouchManager_h_ + +#include "mozilla/BasicEvents.h" +#include "mozilla/dom/Touch.h" +#include "mozilla/StaticPtr.h" +#include "mozilla/TouchEvents.h" +#include "nsRefPtrHashtable.h" + +namespace mozilla { +class PresShell; + +class TouchManager { + public: + // Initialize and release static variables + static void InitializeStatics(); + static void ReleaseStatics(); + + void Init(PresShell* aPresShell, dom::Document* aDocument); + void Destroy(); + + // Perform hit test and setup the event targets for touchstart. Other touch + // events are dispatched to the same target as touchstart. + static nsIFrame* SetupTarget(WidgetTouchEvent* aEvent, nsIFrame* aFrame); + + /** + * This function checks whether all touch points hit elements in the same + * document. If not, we try to find its cross document parent which is in the + * same document of the existing target as the event target. We mark the + * touch point as suppressed if can't find it. The suppressed touch points are + * removed in TouchManager::PreHandleEvent so that we don't dispatch them to + * content. + * + * @param aEvent A touch event to be checked. + * + * @return The targeted frame of aEvent. + */ + static nsIFrame* SuppressInvalidPointsAndGetTargetedFrame( + WidgetTouchEvent* aEvent); + + bool PreHandleEvent(mozilla::WidgetEvent* aEvent, nsEventStatus* aStatus, + bool& aTouchIsNew, + nsCOMPtr<nsIContent>& aCurrentEventContent); + + static already_AddRefed<nsIContent> GetAnyCapturedTouchTarget(); + static bool HasCapturedTouch(int32_t aId); + static already_AddRefed<dom::Touch> GetCapturedTouch(int32_t aId); + static bool ShouldConvertTouchToPointer(const dom::Touch* aTouch, + const WidgetTouchEvent* aEvent); + + private: + void EvictTouches(dom::Document* aLimitToDocument = nullptr); + static void EvictTouchPoint(RefPtr<dom::Touch>& aTouch, + dom::Document* aLimitToDocument); + static void AppendToTouchList(WidgetTouchEvent::TouchArrayBase* aTouchList); + + RefPtr<PresShell> mPresShell; + RefPtr<dom::Document> mDocument; + + struct TouchInfo { + RefPtr<mozilla::dom::Touch> mTouch; + nsCOMPtr<nsIContent> mNonAnonymousTarget; + bool mConvertToPointer; + }; + + static StaticAutoPtr<nsTHashMap<nsUint32HashKey, TouchInfo>> + sCaptureTouchList; + static layers::LayersId sCaptureTouchLayersId; +}; + +} // namespace mozilla + +#endif /* !defined(TouchManager_h_) */ |