93 lines
3.1 KiB
C++
93 lines
3.1 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* (C) 1999 Antti Koivisto (koivisto@kde.org)
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* Copyright (C) 2004, 2005, 2006, 2007, 2010, 2015 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "config.h"
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#include "HTMLImageLoader.h"
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#include "CachedImage.h"
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#include "CommonVM.h"
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#include "DOMWindow.h"
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#include "Element.h"
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#include "Event.h"
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#include "EventNames.h"
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#include "HTMLNames.h"
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#include "HTMLObjectElement.h"
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#include "HTMLParserIdioms.h"
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#include "HTMLVideoElement.h"
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#include "Settings.h"
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#include "JSDOMWindowBase.h"
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#include <JavaScriptCore/JSCInlines.h>
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#include <JavaScriptCore/JSLock.h>
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namespace WebCore {
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HTMLImageLoader::HTMLImageLoader(Element& element)
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: ImageLoader(element)
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{
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}
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HTMLImageLoader::~HTMLImageLoader() = default;
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void HTMLImageLoader::dispatchLoadEvent()
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{
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#if ENABLE(VIDEO)
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// HTMLVideoElement uses this class to load the poster image, but it should not fire events for loading or failure.
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if (is<HTMLVideoElement>(element()))
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return;
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#endif
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bool errorOccurred = image()->errorOccurred();
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if (!errorOccurred && image()->response().httpStatusCode() >= 400)
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errorOccurred = is<HTMLObjectElement>(element()); // An <object> considers a 404 to be an error and should fire onerror.
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element().dispatchEvent(Event::create(errorOccurred ? eventNames().errorEvent : eventNames().loadEvent, Event::CanBubble::No, Event::IsCancelable::No));
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}
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String HTMLImageLoader::sourceURI(const AtomString& attr) const
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{
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return stripLeadingAndTrailingHTMLSpaces(attr);
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}
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void HTMLImageLoader::notifyFinished(CachedResource&, const NetworkLoadMetrics& metrics)
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{
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ASSERT(image());
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CachedImage& cachedImage = *image();
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Ref<Element> protect(element());
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ImageLoader::notifyFinished(cachedImage, metrics);
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bool loadError = cachedImage.errorOccurred() || cachedImage.response().httpStatusCode() >= 400;
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if (!loadError) {
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if (!element().isConnected()) {
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JSC::VM& vm = commonVM();
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JSC::JSLockHolder lock(vm);
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// FIXME: Adopt reportExtraMemoryVisited, and switch to reportExtraMemoryAllocated.
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// https://bugs.webkit.org/show_bug.cgi?id=142595
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vm.heap.deprecatedReportExtraMemory(cachedImage.encodedSize());
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}
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}
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if (loadError && is<HTMLObjectElement>(element()))
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downcast<HTMLObjectElement>(element()).renderFallbackContent();
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}
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}
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