зеркало из https://github.com/mozilla/gecko-dev.git
114 строки
4.3 KiB
C++
114 строки
4.3 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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#include "mozilla/dom/InputEvent.h"
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#include "mozilla/TextEvents.h"
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#include "prtime.h"
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namespace mozilla {
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namespace dom {
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InputEvent::InputEvent(EventTarget* aOwner, nsPresContext* aPresContext,
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InternalEditorInputEvent* aEvent)
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: UIEvent(aOwner, aPresContext,
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aEvent
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? aEvent
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: new InternalEditorInputEvent(false, eVoidEvent, nullptr)) {
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NS_ASSERTION(mEvent->mClass == eEditorInputEventClass, "event type mismatch");
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if (aEvent) {
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mEventIsInternal = false;
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} else {
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mEventIsInternal = true;
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mEvent->mTime = PR_Now();
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}
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}
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void InputEvent::GetData(nsAString& aData, CallerType aCallerType) {
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InternalEditorInputEvent* editorInputEvent = mEvent->AsEditorInputEvent();
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MOZ_ASSERT(editorInputEvent);
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// If clipboard event is disabled, user may not want to leak clipboard
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// information via DOM events. If so, we should return empty string instead.
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if (mEvent->IsTrusted() && aCallerType != CallerType::System &&
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!StaticPrefs::dom_event_clipboardevents_enabled() &&
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ExposesClipboardDataOrDataTransfer(editorInputEvent->mInputType)) {
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aData = editorInputEvent->mData.IsVoid() ? VoidString() : EmptyString();
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return;
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}
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aData = editorInputEvent->mData;
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}
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already_AddRefed<DataTransfer> InputEvent::GetDataTransfer(
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CallerType aCallerType) {
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InternalEditorInputEvent* editorInputEvent = mEvent->AsEditorInputEvent();
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MOZ_ASSERT(editorInputEvent);
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// If clipboard event is disabled, user may not want to leak clipboard
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// information via DOM events. If so, we should return DataTransfer which
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// has empty string instead. The reason why we make it have empty string is,
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// web apps may not expect that InputEvent.dataTransfer returns empty and
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// non-null DataTransfer instance.
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if (mEvent->IsTrusted() && aCallerType != CallerType::System &&
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!StaticPrefs::dom_event_clipboardevents_enabled() &&
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ExposesClipboardDataOrDataTransfer(editorInputEvent->mInputType)) {
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if (!editorInputEvent->mDataTransfer) {
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return nullptr;
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}
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return do_AddRef(
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new DataTransfer(editorInputEvent->mDataTransfer->GetParentObject(),
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editorInputEvent->mMessage, EmptyString()));
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}
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return do_AddRef(editorInputEvent->mDataTransfer);
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}
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void InputEvent::GetInputType(nsAString& aInputType) {
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InternalEditorInputEvent* editorInputEvent = mEvent->AsEditorInputEvent();
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MOZ_ASSERT(editorInputEvent);
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if (editorInputEvent->mInputType == EditorInputType::eUnknown) {
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aInputType = mInputTypeValue;
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} else {
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editorInputEvent->GetDOMInputTypeName(aInputType);
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}
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}
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bool InputEvent::IsComposing() {
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return mEvent->AsEditorInputEvent()->mIsComposing;
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}
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already_AddRefed<InputEvent> InputEvent::Constructor(
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const GlobalObject& aGlobal, const nsAString& aType,
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const InputEventInit& aParam) {
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nsCOMPtr<EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());
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RefPtr<InputEvent> e = new InputEvent(t, nullptr, nullptr);
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bool trusted = e->Init(t);
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e->InitUIEvent(aType, aParam.mBubbles, aParam.mCancelable, aParam.mView,
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aParam.mDetail);
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InternalEditorInputEvent* internalEvent = e->mEvent->AsEditorInputEvent();
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internalEvent->mInputType =
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InternalEditorInputEvent::GetEditorInputType(aParam.mInputType);
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if (internalEvent->mInputType == EditorInputType::eUnknown) {
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e->mInputTypeValue = aParam.mInputType;
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}
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internalEvent->mData = aParam.mData;
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internalEvent->mDataTransfer = aParam.mDataTransfer;
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internalEvent->mIsComposing = aParam.mIsComposing;
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e->SetTrusted(trusted);
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e->SetComposed(aParam.mComposed);
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return e.forget();
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}
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} // namespace dom
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} // namespace mozilla
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using namespace mozilla;
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using namespace mozilla::dom;
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already_AddRefed<InputEvent> NS_NewDOMInputEvent(
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EventTarget* aOwner, nsPresContext* aPresContext,
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InternalEditorInputEvent* aEvent) {
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RefPtr<InputEvent> it = new InputEvent(aOwner, aPresContext, aEvent);
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return it.forget();
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}
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