gecko-dev/dom/events/InputEvent.cpp
Masayuki Nakano 6eadee9e6c Bug 998941 - part 2-1: Implement InputEvent.dataTransfer declared by Input Events r=smaug
InputEvent.dataTransfer is declared by Input Events Level 1 and Level 2 (i.e.,
not UI Events).  It's necessary for "beforeinput" event on contenteditable
elements because of with some InputEvent.inputType values on contenteditable,
InputEvent.dataTransfer is used instead of InputEvent.data.

According to the Chrome's behavior, if InputEvent.dataTransfer is created by
web apps, the DataTransfer object is mutable.  Otherwise, i.e., the event
represents user input, the DataTransfer object is read only.  We should follow
this behavior.

This is enabled by default.

Differential Revision: https://phabricator.services.mozilla.com/D19296

--HG--
extra : moz-landing-system : lando
2019-02-19 06:32:11 +00:00

90 lines
3.0 KiB
C++

/* -*- 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/. */
#include "mozilla/dom/InputEvent.h"
#include "mozilla/TextEvents.h"
#include "prtime.h"
namespace mozilla {
namespace dom {
InputEvent::InputEvent(EventTarget* aOwner, nsPresContext* aPresContext,
InternalEditorInputEvent* aEvent)
: UIEvent(aOwner, aPresContext,
aEvent
? aEvent
: new InternalEditorInputEvent(false, eVoidEvent, nullptr)) {
NS_ASSERTION(mEvent->mClass == eEditorInputEventClass, "event type mismatch");
if (aEvent) {
mEventIsInternal = false;
} else {
mEventIsInternal = true;
mEvent->mTime = PR_Now();
}
}
void InputEvent::GetData(nsAString& aData) {
InternalEditorInputEvent* editorInputEvent = mEvent->AsEditorInputEvent();
MOZ_ASSERT(editorInputEvent);
aData = editorInputEvent->mData;
}
DataTransfer* InputEvent::GetDataTransfer() {
InternalEditorInputEvent* editorInputEvent = mEvent->AsEditorInputEvent();
MOZ_ASSERT(editorInputEvent);
return editorInputEvent->mDataTransfer;
}
void InputEvent::GetInputType(nsAString& aInputType) {
InternalEditorInputEvent* editorInputEvent = mEvent->AsEditorInputEvent();
MOZ_ASSERT(editorInputEvent);
if (editorInputEvent->mInputType == EditorInputType::eUnknown) {
aInputType = mInputTypeValue;
} else {
editorInputEvent->GetDOMInputTypeName(aInputType);
}
}
bool InputEvent::IsComposing() {
return mEvent->AsEditorInputEvent()->mIsComposing;
}
already_AddRefed<InputEvent> InputEvent::Constructor(
const GlobalObject& aGlobal, const nsAString& aType,
const InputEventInit& aParam, ErrorResult& aRv) {
nsCOMPtr<EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());
RefPtr<InputEvent> e = new InputEvent(t, nullptr, nullptr);
bool trusted = e->Init(t);
e->InitUIEvent(aType, aParam.mBubbles, aParam.mCancelable, aParam.mView,
aParam.mDetail);
InternalEditorInputEvent* internalEvent = e->mEvent->AsEditorInputEvent();
internalEvent->mInputType =
InternalEditorInputEvent::GetEditorInputType(aParam.mInputType);
if (internalEvent->mInputType == EditorInputType::eUnknown) {
e->mInputTypeValue = aParam.mInputType;
}
internalEvent->mData = aParam.mData;
internalEvent->mDataTransfer = aParam.mDataTransfer;
internalEvent->mIsComposing = aParam.mIsComposing;
e->SetTrusted(trusted);
e->SetComposed(aParam.mComposed);
return e.forget();
}
} // namespace dom
} // namespace mozilla
using namespace mozilla;
using namespace mozilla::dom;
already_AddRefed<InputEvent> NS_NewDOMInputEvent(
EventTarget* aOwner, nsPresContext* aPresContext,
InternalEditorInputEvent* aEvent) {
RefPtr<InputEvent> it = new InputEvent(aOwner, aPresContext, aEvent);
return it.forget();
}