1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/events/NotifyPaintEvent.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,177 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "base/basictypes.h"
1.10 +#include "ipc/IPCMessageUtils.h"
1.11 +#include "mozilla/dom/DOMRect.h"
1.12 +#include "mozilla/dom/NotifyPaintEvent.h"
1.13 +#include "mozilla/dom/PaintRequest.h"
1.14 +#include "mozilla/GfxMessageUtils.h"
1.15 +#include "nsContentUtils.h"
1.16 +
1.17 +namespace mozilla {
1.18 +namespace dom {
1.19 +
1.20 +NotifyPaintEvent::NotifyPaintEvent(EventTarget* aOwner,
1.21 + nsPresContext* aPresContext,
1.22 + WidgetEvent* aEvent,
1.23 + uint32_t aEventType,
1.24 + nsInvalidateRequestList* aInvalidateRequests)
1.25 + : Event(aOwner, aPresContext, aEvent)
1.26 +{
1.27 + if (mEvent) {
1.28 + mEvent->message = aEventType;
1.29 + }
1.30 + if (aInvalidateRequests) {
1.31 + mInvalidateRequests.MoveElementsFrom(aInvalidateRequests->mRequests);
1.32 + }
1.33 +}
1.34 +
1.35 +NS_INTERFACE_MAP_BEGIN(NotifyPaintEvent)
1.36 + NS_INTERFACE_MAP_ENTRY(nsIDOMNotifyPaintEvent)
1.37 +NS_INTERFACE_MAP_END_INHERITING(Event)
1.38 +
1.39 +NS_IMPL_ADDREF_INHERITED(NotifyPaintEvent, Event)
1.40 +NS_IMPL_RELEASE_INHERITED(NotifyPaintEvent, Event)
1.41 +
1.42 +nsRegion
1.43 +NotifyPaintEvent::GetRegion()
1.44 +{
1.45 + nsRegion r;
1.46 + if (!nsContentUtils::IsCallerChrome()) {
1.47 + return r;
1.48 + }
1.49 + for (uint32_t i = 0; i < mInvalidateRequests.Length(); ++i) {
1.50 + r.Or(r, mInvalidateRequests[i].mRect);
1.51 + r.SimplifyOutward(10);
1.52 + }
1.53 + return r;
1.54 +}
1.55 +
1.56 +NS_IMETHODIMP
1.57 +NotifyPaintEvent::GetBoundingClientRect(nsIDOMClientRect** aResult)
1.58 +{
1.59 + *aResult = BoundingClientRect().take();
1.60 + return NS_OK;
1.61 +}
1.62 +
1.63 +already_AddRefed<DOMRect>
1.64 +NotifyPaintEvent::BoundingClientRect()
1.65 +{
1.66 + nsRefPtr<DOMRect> rect = new DOMRect(ToSupports(this));
1.67 +
1.68 + if (mPresContext) {
1.69 + rect->SetLayoutRect(GetRegion().GetBounds());
1.70 + }
1.71 +
1.72 + return rect.forget();
1.73 +}
1.74 +
1.75 +NS_IMETHODIMP
1.76 +NotifyPaintEvent::GetClientRects(nsIDOMClientRectList** aResult)
1.77 +{
1.78 + *aResult = ClientRects().take();
1.79 + return NS_OK;
1.80 +}
1.81 +
1.82 +already_AddRefed<DOMRectList>
1.83 +NotifyPaintEvent::ClientRects()
1.84 +{
1.85 + nsISupports* parent = ToSupports(this);
1.86 + nsRefPtr<DOMRectList> rectList = new DOMRectList(parent);
1.87 +
1.88 + nsRegion r = GetRegion();
1.89 + nsRegionRectIterator iter(r);
1.90 + for (const nsRect* rgnRect = iter.Next(); rgnRect; rgnRect = iter.Next()) {
1.91 + nsRefPtr<DOMRect> rect = new DOMRect(parent);
1.92 +
1.93 + rect->SetLayoutRect(*rgnRect);
1.94 + rectList->Append(rect);
1.95 + }
1.96 +
1.97 + return rectList.forget();
1.98 +}
1.99 +
1.100 +NS_IMETHODIMP
1.101 +NotifyPaintEvent::GetPaintRequests(nsISupports** aResult)
1.102 +{
1.103 + nsRefPtr<PaintRequestList> requests = PaintRequests();
1.104 + requests.forget(aResult);
1.105 + return NS_OK;
1.106 +}
1.107 +
1.108 +already_AddRefed<PaintRequestList>
1.109 +NotifyPaintEvent::PaintRequests()
1.110 +{
1.111 + Event* parent = this;
1.112 + nsRefPtr<PaintRequestList> requests = new PaintRequestList(parent);
1.113 +
1.114 + if (nsContentUtils::IsCallerChrome()) {
1.115 + for (uint32_t i = 0; i < mInvalidateRequests.Length(); ++i) {
1.116 + nsRefPtr<PaintRequest> r = new PaintRequest(parent);
1.117 + r->SetRequest(mInvalidateRequests[i]);
1.118 + requests->Append(r);
1.119 + }
1.120 + }
1.121 +
1.122 + return requests.forget();
1.123 +}
1.124 +
1.125 +NS_IMETHODIMP_(void)
1.126 +NotifyPaintEvent::Serialize(IPC::Message* aMsg,
1.127 + bool aSerializeInterfaceType)
1.128 +{
1.129 + if (aSerializeInterfaceType) {
1.130 + IPC::WriteParam(aMsg, NS_LITERAL_STRING("notifypaintevent"));
1.131 + }
1.132 +
1.133 + Event::Serialize(aMsg, false);
1.134 +
1.135 + uint32_t length = mInvalidateRequests.Length();
1.136 + IPC::WriteParam(aMsg, length);
1.137 + for (uint32_t i = 0; i < length; ++i) {
1.138 + IPC::WriteParam(aMsg, mInvalidateRequests[i].mRect);
1.139 + IPC::WriteParam(aMsg, mInvalidateRequests[i].mFlags);
1.140 + }
1.141 +}
1.142 +
1.143 +NS_IMETHODIMP_(bool)
1.144 +NotifyPaintEvent::Deserialize(const IPC::Message* aMsg, void** aIter)
1.145 +{
1.146 + NS_ENSURE_TRUE(Event::Deserialize(aMsg, aIter), false);
1.147 +
1.148 + uint32_t length = 0;
1.149 + NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &length), false);
1.150 + mInvalidateRequests.SetCapacity(length);
1.151 + for (uint32_t i = 0; i < length; ++i) {
1.152 + nsInvalidateRequestList::Request req;
1.153 + NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &req.mRect), false);
1.154 + NS_ENSURE_TRUE(IPC::ReadParam(aMsg, aIter, &req.mFlags), false);
1.155 + mInvalidateRequests.AppendElement(req);
1.156 + }
1.157 +
1.158 + return true;
1.159 +}
1.160 +
1.161 +} // namespace dom
1.162 +} // namespace mozilla
1.163 +
1.164 +using namespace mozilla;
1.165 +using namespace mozilla::dom;
1.166 +
1.167 +nsresult
1.168 +NS_NewDOMNotifyPaintEvent(nsIDOMEvent** aInstancePtrResult,
1.169 + EventTarget* aOwner,
1.170 + nsPresContext* aPresContext,
1.171 + WidgetEvent* aEvent,
1.172 + uint32_t aEventType,
1.173 + nsInvalidateRequestList* aInvalidateRequests)
1.174 +{
1.175 + NotifyPaintEvent* it = new NotifyPaintEvent(aOwner, aPresContext, aEvent,
1.176 + aEventType, aInvalidateRequests);
1.177 + NS_ADDREF(it);
1.178 + *aInstancePtrResult = static_cast<Event*>(it);
1.179 + return NS_OK;
1.180 +}
