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/* -*- 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
#include "mozilla/dom/ClipboardEvent.h"
#include "mozilla/ContentEvents.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/ImageInputTelemetry.h"
#include "mozilla/dom/DataTransfer.h"
#include "nsIClipboard.h"
namespace mozilla::dom {
ClipboardEvent::ClipboardEvent(EventTarget* aOwner, nsPresContext* aPresContext,
InternalClipboardEvent* aEvent)
: Event(aOwner, aPresContext,
aEvent ? aEvent : new InternalClipboardEvent(false, eVoidEvent)) {
if (aEvent) {
mEventIsInternal = false;
} else {
mEventIsInternal = true;
}
}
void ClipboardEvent::InitClipboardEvent(const nsAString& aType, bool aCanBubble,
bool aCancelable,
DataTransfer* aClipboardData) {
NS_ENSURE_TRUE_VOID(!mEvent->mFlags.mIsBeingDispatched);
Event::InitEvent(aType, aCanBubble, aCancelable);
mEvent->AsClipboardEvent()->mClipboardData = aClipboardData;
}
already_AddRefed<ClipboardEvent> ClipboardEvent::Constructor(
const GlobalObject& aGlobal, const nsAString& aType,
const ClipboardEventInit& aParam, ErrorResult& aRv) {
nsCOMPtr<EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());
RefPtr<ClipboardEvent> e = new ClipboardEvent(t, nullptr, nullptr);
bool trusted = e->Init(t);
RefPtr<DataTransfer> clipboardData;
if (e->mEventIsInternal) {
InternalClipboardEvent* event = e->mEvent->AsClipboardEvent();
if (event) {
// Always create a clipboardData for the copy event. If this is changed to
// support other types of events, make sure that read/write privileges are
// checked properly within DataTransfer.
clipboardData = new DataTransfer(ToSupports(e), eCopy, false, Nothing());
clipboardData->SetData(aParam.mDataType, aParam.mData,
*aGlobal.GetSubjectPrincipal(), aRv);
NS_ENSURE_TRUE(!aRv.Failed(), nullptr);
}
}
e->InitClipboardEvent(aType, aParam.mBubbles, aParam.mCancelable,
clipboardData);
e->SetTrusted(trusted);
e->SetComposed(aParam.mComposed);
return e.forget();
}
DataTransfer* ClipboardEvent::GetClipboardData() {
InternalClipboardEvent* event = mEvent->AsClipboardEvent();
if (!event->mClipboardData) {
if (mEventIsInternal) {
event->mClipboardData =
new DataTransfer(ToSupports(this), eCopy, false, Nothing());
} else {
event->mClipboardData = new DataTransfer(
ToSupports(this), event->mMessage, event->mMessage == ePaste,
Some(nsIClipboard::kGlobalClipboard));
}
}
// Only collect image input telemetry on external paste events, unless in
// automation. In tests we skip this check using the pref, since we cannot
// synthesize external events.
if ((!mEventIsInternal ||
StaticPrefs::privacy_imageInputTelemetry_enableTestMode()) &&
!mImageInputTelemetryCollected) {
ImageInputTelemetry::MaybeRecordPasteImageInputTelemetry(
event, GetParentObject()->PrincipalOrNull());
mImageInputTelemetryCollected = true;
}
return event->mClipboardData;
}
} // namespace mozilla::dom
using namespace mozilla;
using namespace mozilla::dom;
already_AddRefed<ClipboardEvent> NS_NewDOMClipboardEvent(
EventTarget* aOwner, nsPresContext* aPresContext,
InternalClipboardEvent* aEvent) {
RefPtr<ClipboardEvent> it = new ClipboardEvent(aOwner, aPresContext, aEvent);
return it.forget();
}