WebCore/html/HTMLScriptElement.cpp
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     1 /*
       
     2  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
       
     3  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
       
     4  *           (C) 2001 Dirk Mueller (mueller@kde.org)
       
     5  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
       
     6  *
       
     7  * This library is free software; you can redistribute it and/or
       
     8  * modify it under the terms of the GNU Library General Public
       
     9  * License as published by the Free Software Foundation; either
       
    10  * version 2 of the License, or (at your option) any later version.
       
    11  *
       
    12  * This library is distributed in the hope that it will be useful,
       
    13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
       
    14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       
    15  * Library General Public License for more details.
       
    16  *
       
    17  * You should have received a copy of the GNU Library General Public License
       
    18  * along with this library; see the file COPYING.LIB.  If not, write to
       
    19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
       
    20  * Boston, MA 02110-1301, USA.
       
    21  */
       
    22 
       
    23 #include "config.h"
       
    24 #include "HTMLScriptElement.h"
       
    25 
       
    26 #include "Attribute.h"
       
    27 #include "Document.h"
       
    28 #include "Event.h"
       
    29 #include "EventNames.h"
       
    30 #include "HTMLNames.h"
       
    31 #include "ScriptEventListener.h"
       
    32 #include "Text.h"
       
    33 
       
    34 namespace WebCore {
       
    35 
       
    36 using namespace HTMLNames;
       
    37 
       
    38 inline HTMLScriptElement::HTMLScriptElement(const QualifiedName& tagName, Document* document, bool createdByParser)
       
    39     : HTMLElement(tagName, document)
       
    40     , m_data(this, this)
       
    41 {
       
    42     ASSERT(hasTagName(scriptTag));
       
    43     m_data.setCreatedByParser(createdByParser);
       
    44 }
       
    45 
       
    46 PassRefPtr<HTMLScriptElement> HTMLScriptElement::create(const QualifiedName& tagName, Document* document, bool createdByParser)
       
    47 {
       
    48     return adoptRef(new HTMLScriptElement(tagName, document, createdByParser));
       
    49 }
       
    50 
       
    51 bool HTMLScriptElement::isURLAttribute(Attribute* attr) const
       
    52 {
       
    53     return attr->name() == srcAttr;
       
    54 }
       
    55 
       
    56 bool HTMLScriptElement::shouldExecuteAsJavaScript() const
       
    57 {
       
    58     return m_data.shouldExecuteAsJavaScript();
       
    59 }
       
    60 
       
    61 void HTMLScriptElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
       
    62 {
       
    63     ScriptElement::childrenChanged(m_data);
       
    64     HTMLElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
       
    65 }
       
    66 
       
    67 void HTMLScriptElement::parseMappedAttribute(Attribute* attr)
       
    68 {
       
    69     const QualifiedName& attrName = attr->name();
       
    70 
       
    71     if (attrName == srcAttr)
       
    72         handleSourceAttribute(m_data, attr->value());
       
    73     else if (attrName == onloadAttr)
       
    74         setAttributeEventListener(eventNames().loadEvent, createAttributeEventListener(this, attr));
       
    75     else if (attrName == onbeforeloadAttr)
       
    76         setAttributeEventListener(eventNames().beforeloadEvent, createAttributeEventListener(this, attr));
       
    77     else if (attrName == onbeforeprocessAttr)
       
    78         setAttributeEventListener(eventNames().beforeprocessEvent, createAttributeEventListener(this, attr));
       
    79     else
       
    80         HTMLElement::parseMappedAttribute(attr);
       
    81 }
       
    82 
       
    83 void HTMLScriptElement::finishParsingChildren()
       
    84 {
       
    85     ScriptElement::finishParsingChildren(m_data, sourceAttributeValue());
       
    86     HTMLElement::finishParsingChildren();
       
    87 }
       
    88 
       
    89 void HTMLScriptElement::insertedIntoDocument()
       
    90 {
       
    91     HTMLElement::insertedIntoDocument();
       
    92     ScriptElement::insertedIntoDocument(m_data, sourceAttributeValue());
       
    93 }
       
    94 
       
    95 void HTMLScriptElement::removedFromDocument()
       
    96 {
       
    97     HTMLElement::removedFromDocument();
       
    98     ScriptElement::removedFromDocument(m_data);
       
    99 }
       
   100 
       
   101 String HTMLScriptElement::text() const
       
   102 {
       
   103     return m_data.scriptContent();
       
   104 }
       
   105 
       
   106 void HTMLScriptElement::setText(const String &value)
       
   107 {
       
   108     ExceptionCode ec = 0;
       
   109     int numChildren = childNodeCount();
       
   110 
       
   111     if (numChildren == 1 && firstChild()->isTextNode()) {
       
   112         static_cast<Text*>(firstChild())->setData(value, ec);
       
   113         return;
       
   114     }
       
   115 
       
   116     if (numChildren > 0)
       
   117         removeChildren();
       
   118 
       
   119     appendChild(document()->createTextNode(value.impl()), ec);
       
   120 }
       
   121 
       
   122 KURL HTMLScriptElement::src() const
       
   123 {
       
   124     return document()->completeURL(sourceAttributeValue());
       
   125 }
       
   126 
       
   127 String HTMLScriptElement::scriptCharset() const
       
   128 {
       
   129     return m_data.scriptCharset();
       
   130 }
       
   131 
       
   132 String HTMLScriptElement::scriptContent() const
       
   133 {
       
   134     return m_data.scriptContent();
       
   135 }
       
   136 
       
   137 void HTMLScriptElement::addSubresourceAttributeURLs(ListHashSet<KURL>& urls) const
       
   138 {
       
   139     HTMLElement::addSubresourceAttributeURLs(urls);
       
   140 
       
   141     addSubresourceURL(urls, src());
       
   142 }
       
   143 
       
   144 String HTMLScriptElement::sourceAttributeValue() const
       
   145 {
       
   146     return getAttribute(srcAttr).string();
       
   147 }
       
   148 
       
   149 String HTMLScriptElement::charsetAttributeValue() const
       
   150 {
       
   151     return getAttribute(charsetAttr).string();
       
   152 }
       
   153 
       
   154 String HTMLScriptElement::typeAttributeValue() const
       
   155 {
       
   156     return getAttribute(typeAttr).string();
       
   157 }
       
   158 
       
   159 String HTMLScriptElement::languageAttributeValue() const
       
   160 {
       
   161     return getAttribute(languageAttr).string();
       
   162 }
       
   163 
       
   164 String HTMLScriptElement::forAttributeValue() const
       
   165 {
       
   166     return getAttribute(forAttr).string();
       
   167 }
       
   168 
       
   169 String HTMLScriptElement::eventAttributeValue() const
       
   170 {
       
   171     return getAttribute(eventAttr).string();
       
   172 }
       
   173 
       
   174 bool HTMLScriptElement::asyncAttributeValue() const
       
   175 {
       
   176     return !getAttribute(asyncAttr).isNull();
       
   177 }
       
   178 
       
   179 bool HTMLScriptElement::deferAttributeValue() const
       
   180 {
       
   181     return !getAttribute(deferAttr).isNull();
       
   182 }
       
   183 
       
   184 void HTMLScriptElement::dispatchLoadEvent()
       
   185 {
       
   186     ASSERT(!m_data.haveFiredLoadEvent());
       
   187     m_data.setHaveFiredLoadEvent(true);
       
   188 
       
   189     dispatchEvent(Event::create(eventNames().loadEvent, false, false));
       
   190 }
       
   191 
       
   192 void HTMLScriptElement::dispatchErrorEvent()
       
   193 {
       
   194     dispatchEvent(Event::create(eventNames().errorEvent, true, false));
       
   195 }
       
   196 
       
   197 }