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 "base/basictypes.h"
michael@0: #include "ipc/IPCMessageUtils.h"
michael@0: #include "mozilla/dom/DOMRect.h"
michael@0: #include "mozilla/dom/NotifyPaintEvent.h"
michael@0: #include "mozilla/dom/PaintRequest.h"
michael@0: #include "mozilla/GfxMessageUtils.h"
michael@0: #include "nsContentUtils.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace dom {
michael@0: 
michael@0: NotifyPaintEvent::NotifyPaintEvent(EventTarget* aOwner,
michael@0:                                    nsPresContext* aPresContext,
michael@0:                                    WidgetEvent* aEvent,
michael@0:                                    uint32_t aEventType,
michael@0:                                    nsInvalidateRequestList* aInvalidateRequests)
michael@0:   : Event(aOwner, aPresContext, aEvent)
michael@0: {
michael@0:   if (mEvent) {
michael@0:     mEvent->message = aEventType;
michael@0:   }
michael@0:   if (aInvalidateRequests) {
michael@0:     mInvalidateRequests.MoveElementsFrom(aInvalidateRequests->mRequests);
michael@0:   }
michael@0: }
michael@0: 
michael@0: NS_INTERFACE_MAP_BEGIN(NotifyPaintEvent)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsIDOMNotifyPaintEvent)
michael@0: NS_INTERFACE_MAP_END_INHERITING(Event)
michael@0: 
michael@0: NS_IMPL_ADDREF_INHERITED(NotifyPaintEvent, Event)
michael@0: NS_IMPL_RELEASE_INHERITED(NotifyPaintEvent, Event)
michael@0: 
michael@0: nsRegion
michael@0: NotifyPaintEvent::GetRegion()
michael@0: {
michael@0:   nsRegion r;
michael@0:   if (!nsContentUtils::IsCallerChrome()) {
michael@0:     return r;
michael@0:   }
michael@0:   for (uint32_t i = 0; i < mInvalidateRequests.Length(); ++i) {
michael@0:     r.Or(r, mInvalidateRequests[i].mRect);
michael@0:     r.SimplifyOutward(10);
michael@0:   }
michael@0:   return r;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: NotifyPaintEvent::GetBoundingClientRect(nsIDOMClientRect** aResult)
michael@0: {
michael@0:   *aResult = BoundingClientRect().take();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: already_AddRefed<DOMRect>
michael@0: NotifyPaintEvent::BoundingClientRect()
michael@0: {
michael@0:   nsRefPtr<DOMRect> rect = new DOMRect(ToSupports(this));
michael@0: 
michael@0:   if (mPresContext) {
michael@0:     rect->SetLayoutRect(GetRegion().GetBounds());
michael@0:   }
michael@0: 
michael@0:   return rect.forget();
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: NotifyPaintEvent::GetClientRects(nsIDOMClientRectList** aResult)
michael@0: {
michael@0:   *aResult = ClientRects().take();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: already_AddRefed<DOMRectList>
michael@0: NotifyPaintEvent::ClientRects()
michael@0: {
michael@0:   nsISupports* parent = ToSupports(this);
michael@0:   nsRefPtr<DOMRectList> rectList = new DOMRectList(parent);
michael@0: 
michael@0:   nsRegion r = GetRegion();
michael@0:   nsRegionRectIterator iter(r);
michael@0:   for (const nsRect* rgnRect = iter.Next(); rgnRect; rgnRect = iter.Next()) {
michael@0:     nsRefPtr<DOMRect> rect = new DOMRect(parent);
michael@0:     
michael@0:     rect->SetLayoutRect(*rgnRect);
michael@0:     rectList->Append(rect);
michael@0:   }
michael@0: 
michael@0:   return rectList.forget();
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: NotifyPaintEvent::GetPaintRequests(nsISupports** aResult)
michael@0: {
michael@0:   nsRefPtr<PaintRequestList> requests = PaintRequests();
michael@0:   requests.forget(aResult);
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: already_AddRefed<PaintRequestList>
michael@0: NotifyPaintEvent::PaintRequests()
michael@0: {
michael@0:   Event* parent = this;
michael@0:   nsRefPtr<PaintRequestList> requests = new PaintRequestList(parent);
michael@0: 
michael@0:   if (nsContentUtils::IsCallerChrome()) {
michael@0:     for (uint32_t i = 0; i < mInvalidateRequests.Length(); ++i) {
michael@0:       nsRefPtr<PaintRequest> r = new PaintRequest(parent);
michael@0:       r->SetRequest(mInvalidateRequests[i]);
michael@0:       requests->Append(r);
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   return requests.forget();
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP_(void)
michael@0: NotifyPaintEvent::Serialize(IPC::Message* aMsg,
michael@0:                             bool aSerializeInterfaceType)
michael@0: {
michael@0:   if (aSerializeInterfaceType) {
michael@0:     IPC::WriteParam(aMsg, NS_LITERAL_STRING("notifypaintevent"));
michael@0:   }
michael@0: 
michael@0:   Event::Serialize(aMsg, false);
michael@0: 
michael@0:   uint32_t length = mInvalidateRequests.Length();
michael@0:   IPC::WriteParam(aMsg, length);
michael@0:   for (uint32_t i = 0; i < length; ++i) {
michael@0:     IPC::WriteParam(aMsg, mInvalidateRequests[i].mRect);
michael@0:     IPC::WriteParam(aMsg, mInvalidateRequests[i].mFlags);
michael@0:   }
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP_(bool)
michael@0: NotifyPaintEvent::Deserialize(const IPC::Message* aMsg, void** aIter)
michael@0: {
michael@0:   NS_ENSURE_TRUE(Event::Deserialize(aMsg, aIter), false);
michael@0: 
michael@0:   uint32_t length = 0;
michael@0:   NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &length), false);
michael@0:   mInvalidateRequests.SetCapacity(length);
michael@0:   for (uint32_t i = 0; i < length; ++i) {
michael@0:     nsInvalidateRequestList::Request req;
michael@0:     NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &req.mRect), false);
michael@0:     NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &req.mFlags), false);
michael@0:     mInvalidateRequests.AppendElement(req);
michael@0:   }
michael@0: 
michael@0:   return true;
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_NewDOMNotifyPaintEvent(nsIDOMEvent** aInstancePtrResult,
michael@0:                           EventTarget* aOwner,
michael@0:                           nsPresContext* aPresContext,
michael@0:                           WidgetEvent* aEvent,
michael@0:                           uint32_t aEventType,
michael@0:                           nsInvalidateRequestList* aInvalidateRequests) 
michael@0: {
michael@0:   NotifyPaintEvent* it = new NotifyPaintEvent(aOwner, aPresContext, aEvent,
michael@0:                                               aEventType, aInvalidateRequests);
michael@0:   NS_ADDREF(it);
michael@0:   *aInstancePtrResult = static_cast<Event*>(it);
michael@0:   return NS_OK;
michael@0: }