import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/events/ClipboardEvent.cpp

@@ -0,0 +1,134 @@
+/* -*- 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/ClipboardEvent.h"
+#include "mozilla/ContentEvents.h"
+#include "mozilla/dom/DataTransfer.h"
+#include "nsIClipboard.h"
+
+namespace mozilla {
+namespace 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;
+    mEvent->mTime = PR_Now();
+  }
+}
+
+NS_INTERFACE_MAP_BEGIN(ClipboardEvent)
+  NS_INTERFACE_MAP_ENTRY(nsIDOMClipboardEvent)
+NS_INTERFACE_MAP_END_INHERITING(Event)
+
+NS_IMPL_ADDREF_INHERITED(ClipboardEvent, Event)
+NS_IMPL_RELEASE_INHERITED(ClipboardEvent, Event)
+
+nsresult
+ClipboardEvent::InitClipboardEvent(const nsAString& aType,
+                                   bool aCanBubble,
+                                   bool aCancelable,
+                                   nsIDOMDataTransfer* aClipboardData)
+{
+  nsCOMPtr<DataTransfer> clipboardData = do_QueryInterface(aClipboardData);
+  // Null clipboardData is OK
+
+  ErrorResult rv;
+  InitClipboardEvent(aType, aCanBubble, aCancelable, clipboardData);
+
+  return rv.StealNSResult();
+}
+
+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, -1);
+      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();
+}
+
+NS_IMETHODIMP
+ClipboardEvent::GetClipboardData(nsIDOMDataTransfer** aClipboardData)
+{
+  NS_IF_ADDREF(*aClipboardData = GetClipboardData());
+  return NS_OK;
+}
+
+DataTransfer*
+ClipboardEvent::GetClipboardData()
+{
+  InternalClipboardEvent* event = mEvent->AsClipboardEvent();
+
+  if (!event->mClipboardData) {
+    if (mEventIsInternal) {
+      event->mClipboardData =
+        new DataTransfer(ToSupports(this), eCopy, false, -1);
+    } else {
+      event->mClipboardData =
+        new DataTransfer(ToSupports(this), event->mMessage,
+                         event->mMessage == ePaste,
+                         nsIClipboard::kGlobalClipboard);
+    }
+  }
+
+  return event->mClipboardData;
+}
+
+} // namespace dom
+} // namespace mozilla
+
+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();
+}