michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "mozilla/dom/ClipboardEvent.h"
michael@0: #include "mozilla/ContentEvents.h"
michael@0: #include "mozilla/dom/DataTransfer.h"
michael@0: #include "nsIClipboard.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace dom {
michael@0: 
michael@0: ClipboardEvent::ClipboardEvent(EventTarget* aOwner,
michael@0:                                nsPresContext* aPresContext,
michael@0:                                InternalClipboardEvent* aEvent)
michael@0:   : Event(aOwner, aPresContext,
michael@0:           aEvent ? aEvent : new InternalClipboardEvent(false, 0))
michael@0: {
michael@0:   if (aEvent) {
michael@0:     mEventIsInternal = false;
michael@0:   } else {
michael@0:     mEventIsInternal = true;
michael@0:     mEvent->time = PR_Now();
michael@0:   }
michael@0: }
michael@0: 
michael@0: NS_INTERFACE_MAP_BEGIN(ClipboardEvent)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsIDOMClipboardEvent)
michael@0: NS_INTERFACE_MAP_END_INHERITING(Event)
michael@0: 
michael@0: NS_IMPL_ADDREF_INHERITED(ClipboardEvent, Event)
michael@0: NS_IMPL_RELEASE_INHERITED(ClipboardEvent, Event)
michael@0: 
michael@0: nsresult
michael@0: ClipboardEvent::InitClipboardEvent(const nsAString& aType,
michael@0:                                    bool aCanBubble,
michael@0:                                    bool aCancelable,
michael@0:                                    nsIDOMDataTransfer* aClipboardData)
michael@0: {
michael@0:   nsCOMPtr<DataTransfer> clipboardData = do_QueryInterface(aClipboardData);
michael@0:   // Null clipboardData is OK
michael@0: 
michael@0:   ErrorResult rv;
michael@0:   InitClipboardEvent(aType, aCanBubble, aCancelable, clipboardData, rv);
michael@0: 
michael@0:   return rv.ErrorCode();
michael@0: }
michael@0: 
michael@0: void
michael@0: ClipboardEvent::InitClipboardEvent(const nsAString& aType, bool aCanBubble,
michael@0:                                    bool aCancelable,
michael@0:                                    DataTransfer* aClipboardData,
michael@0:                                    ErrorResult& aError)
michael@0: {
michael@0:   aError = Event::InitEvent(aType, aCanBubble, aCancelable);
michael@0:   if (aError.Failed()) {
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   mEvent->AsClipboardEvent()->clipboardData = aClipboardData;
michael@0: }
michael@0: 
michael@0: already_AddRefed<ClipboardEvent>
michael@0: ClipboardEvent::Constructor(const GlobalObject& aGlobal,
michael@0:                             const nsAString& aType,
michael@0:                             const ClipboardEventInit& aParam,
michael@0:                             ErrorResult& aRv)
michael@0: {
michael@0:   nsCOMPtr<EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());
michael@0:   nsRefPtr<ClipboardEvent> e = new ClipboardEvent(t, nullptr, nullptr);
michael@0:   bool trusted = e->Init(t);
michael@0: 
michael@0:   nsRefPtr<DataTransfer> clipboardData;
michael@0:   if (e->mEventIsInternal) {
michael@0:     InternalClipboardEvent* event = e->mEvent->AsClipboardEvent();
michael@0:     if (event) {
michael@0:       // Always create a clipboardData for the copy event. If this is changed to
michael@0:       // support other types of events, make sure that read/write privileges are
michael@0:       // checked properly within DataTransfer.
michael@0:       clipboardData = new DataTransfer(ToSupports(e), NS_COPY, false, -1);
michael@0:       clipboardData->SetData(aParam.mDataType, aParam.mData);
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   e->InitClipboardEvent(aType, aParam.mBubbles, aParam.mCancelable,
michael@0:                         clipboardData, aRv);
michael@0:   e->SetTrusted(trusted);
michael@0:   return e.forget();
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: ClipboardEvent::GetClipboardData(nsIDOMDataTransfer** aClipboardData)
michael@0: {
michael@0:   NS_IF_ADDREF(*aClipboardData = GetClipboardData());
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: DataTransfer*
michael@0: ClipboardEvent::GetClipboardData()
michael@0: {
michael@0:   InternalClipboardEvent* event = mEvent->AsClipboardEvent();
michael@0: 
michael@0:   if (!event->clipboardData) {
michael@0:     if (mEventIsInternal) {
michael@0:       event->clipboardData =
michael@0:         new DataTransfer(ToSupports(this), NS_COPY, false, -1);
michael@0:     } else {
michael@0:       event->clipboardData =
michael@0:         new DataTransfer(ToSupports(this), event->message,
michael@0:                          event->message == NS_PASTE,
michael@0:                          nsIClipboard::kGlobalClipboard);
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   return event->clipboardData;
michael@0: }
michael@0: 
michael@0: } // namespace dom
michael@0: } // namespace mozilla
michael@0: 
michael@0: using namespace mozilla;
michael@0: using namespace mozilla::dom;
michael@0: 
michael@0: nsresult
michael@0: NS_NewDOMClipboardEvent(nsIDOMEvent** aInstancePtrResult,
michael@0:                         EventTarget* aOwner,
michael@0:                         nsPresContext* aPresContext,
michael@0:                         InternalClipboardEvent* aEvent)
michael@0: {
michael@0:   ClipboardEvent* it = new ClipboardEvent(aOwner, aPresContext, aEvent);
michael@0:   NS_ADDREF(it);
michael@0:   *aInstancePtrResult = static_cast<Event*>(it);
michael@0:   return NS_OK;
michael@0: }