Home | History | Annotate | Download | only in html 
      1 /*
      2  * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org)
      3  *           (C) 1999 Antti Koivisto (koivisto (at) kde.org)
      4  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Library General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Library General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Library General Public License
     17  * along with this library; see the file COPYING.LIB.  If not, write to
     18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  * Boston, MA 02110-1301, USA.
     20  */
     21 
     22 #include "config.h"
     23 #include "HTMLImageLoader.h"
     24 
     25 #include "CSSHelper.h"
     26 #include "CachedImage.h"
     27 #include "Element.h"
     28 #include "Event.h"
     29 #include "EventNames.h"
     30 #include "HTMLNames.h"
     31 #include "HTMLObjectElement.h"
     32 
     33 namespace WebCore {
     34 
     35 HTMLImageLoader::HTMLImageLoader(Element* node)
     36     : ImageLoader(node)
     37 {
     38 }
     39 
     40 HTMLImageLoader::~HTMLImageLoader()
     41 {
     42 }
     43 
     44 void HTMLImageLoader::dispatchLoadEvent()
     45 {
     46     bool errorOccurred = image()->errorOccurred();
     47     if (!errorOccurred && image()->httpStatusCodeErrorOccurred())
     48         errorOccurred = element()->hasTagName(HTMLNames::objectTag); // An <object> considers a 404 to be an error and should fire onerror.
     49     element()->dispatchEvent(Event::create(errorOccurred ? eventNames().errorEvent : eventNames().loadEvent, false, false));
     50 }
     51 
     52 String HTMLImageLoader::sourceURI(const AtomicString& attr) const
     53 {
     54     return deprecatedParseURL(attr);
     55 }
     56 
     57 void HTMLImageLoader::notifyFinished(CachedResource*)
     58 {
     59     CachedImage* cachedImage = image();
     60 
     61     Element* elem = element();
     62     ImageLoader::notifyFinished(cachedImage);
     63 
     64     if ((cachedImage->errorOccurred() || cachedImage->httpStatusCodeErrorOccurred()) && elem->hasTagName(HTMLNames::objectTag))
     65         static_cast<HTMLObjectElement*>(elem)->renderFallbackContent();
     66 }
     67 
     68 }
     69