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37d309e927
Hiding document.createEvent("TouchEvent"), document.createTouch, document.createTouchList and ontouch* event
handlers on desktop to follow what Chrome has done.
This patch explicitly does not remove createTouch or createTouchList everywhere, although those seem to have been
removing already on some other browsers.
Devtools use TOUCHEVENTS_OVERRIDE_ENABLED for touch event testing, and this patch keeps the old behavior per discussion
with devtools devs.
Differential Revision: https://phabricator.services.mozilla.com/D22081
--HG--
extra : rebase_source : 562588a289632ba2f11db7f3ac8782c26c3b05f8
126 lines
4.2 KiB
C++
126 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_TouchEvent_h_
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#define mozilla_dom_TouchEvent_h_
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#include "mozilla/dom/Touch.h"
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#include "mozilla/dom/TouchEventBinding.h"
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#include "mozilla/dom/UIEvent.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/EventForwards.h"
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#include "mozilla/TouchEvents.h"
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#include "nsJSEnvironment.h"
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#include "nsStringFwd.h"
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#include "nsWrapperCache.h"
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namespace mozilla {
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namespace dom {
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class TouchList final : public nsISupports, public nsWrapperCache {
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(TouchList)
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explicit TouchList(nsISupports* aParent) : mParent(aParent) {
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nsJSContext::LikelyShortLivingObjectCreated();
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}
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TouchList(nsISupports* aParent, const WidgetTouchEvent::TouchArray& aTouches)
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: mParent(aParent), mPoints(aTouches) {
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nsJSContext::LikelyShortLivingObjectCreated();
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}
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void Append(Touch* aPoint) { mPoints.AppendElement(aPoint); }
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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nsISupports* GetParentObject() const { return mParent; }
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static bool PrefEnabled(JSContext* aCx, JSObject* aGlobal);
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uint32_t Length() const { return mPoints.Length(); }
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Touch* Item(uint32_t aIndex) const { return mPoints.SafeElementAt(aIndex); }
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Touch* IndexedGetter(uint32_t aIndex, bool& aFound) const {
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aFound = aIndex < mPoints.Length();
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if (!aFound) {
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return nullptr;
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}
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return mPoints[aIndex];
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}
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void Clear() { mPoints.Clear(); }
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protected:
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~TouchList() {}
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nsCOMPtr<nsISupports> mParent;
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WidgetTouchEvent::TouchArray mPoints;
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};
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class TouchEvent : public UIEvent {
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public:
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TouchEvent(EventTarget* aOwner, nsPresContext* aPresContext,
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WidgetTouchEvent* aEvent);
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(TouchEvent, UIEvent)
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virtual JSObject* WrapObjectInternal(
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JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override {
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return TouchEvent_Binding::Wrap(aCx, this, aGivenProto);
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}
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already_AddRefed<TouchList> CopyTouches(
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const Sequence<OwningNonNull<Touch>>& aTouches);
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TouchList* Touches();
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// TargetTouches() populates mTargetTouches from widget event's touch list.
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TouchList* TargetTouches();
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// GetExistingTargetTouches just returns the existing target touches list.
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TouchList* GetExistingTargetTouches() { return mTargetTouches; }
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TouchList* ChangedTouches();
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bool AltKey();
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bool MetaKey();
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bool CtrlKey();
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bool ShiftKey();
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void InitTouchEvent(const nsAString& aType, bool aCanBubble, bool aCancelable,
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nsGlobalWindowInner* aView, int32_t aDetail,
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bool aCtrlKey, bool aAltKey, bool aShiftKey,
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bool aMetaKey, TouchList* aTouches,
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TouchList* aTargetTouches, TouchList* aChangedTouches);
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static bool PlatformSupportsTouch();
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static bool PrefEnabled(JSContext* aCx, JSObject* aGlobal);
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static bool PrefEnabled(nsIDocShell* aDocShell);
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static bool LegacyAPIEnabled(JSContext* aCx, JSObject* aGlobal);
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static bool LegacyAPIEnabled(nsIDocShell* aDocShell, bool aCallerIsSystem);
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static already_AddRefed<TouchEvent> Constructor(const GlobalObject& aGlobal,
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const nsAString& aType,
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const TouchEventInit& aParam,
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ErrorResult& aRv);
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protected:
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~TouchEvent() {}
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void AssignTouchesToWidgetEvent(TouchList* aList, bool aCheckDuplicates);
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RefPtr<TouchList> mTouches;
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RefPtr<TouchList> mTargetTouches;
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RefPtr<TouchList> mChangedTouches;
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};
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} // namespace dom
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} // namespace mozilla
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already_AddRefed<mozilla::dom::TouchEvent> NS_NewDOMTouchEvent(
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mozilla::dom::EventTarget* aOwner, nsPresContext* aPresContext,
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mozilla::WidgetTouchEvent* aEvent);
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#endif // mozilla_dom_TouchEvent_h_
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