--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/dom/ProcessingInstruction.cpp Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,288 @@
+/*
+ * Copyright (C) 2000 Peter Kelly (pmk@post.com)
+ * Copyright (C) 2006, 2008, 2009 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "ProcessingInstruction.h"
+
+#include "CSSStyleSheet.h"
+#include "CachedCSSStyleSheet.h"
+#include "CachedXSLStyleSheet.h"
+#include "Document.h"
+#include "DocLoader.h"
+#include "ExceptionCode.h"
+#include "Frame.h"
+#include "FrameLoader.h"
+#include "XSLStyleSheet.h"
+#include "XMLDocumentParser.h" // for parseAttributes()
+#include "MediaList.h"
+
+namespace WebCore {
+
+inline ProcessingInstruction::ProcessingInstruction(Document* document, const String& target, const String& data)
+ : ContainerNode(document)
+ , m_target(target)
+ , m_data(data)
+ , m_cachedSheet(0)
+ , m_loading(false)
+ , m_alternate(false)
+ , m_createdByParser(false)
+#if ENABLE(XSLT)
+ , m_isXSL(false)
+#endif
+{
+}
+
+PassRefPtr<ProcessingInstruction> ProcessingInstruction::create(Document* document, const String& target, const String& data)
+{
+ return adoptRef(new ProcessingInstruction(document, target, data));
+}
+
+ProcessingInstruction::~ProcessingInstruction()
+{
+ if (m_cachedSheet)
+ m_cachedSheet->removeClient(this);
+}
+
+void ProcessingInstruction::setData(const String& data, ExceptionCode&)
+{
+ int oldLength = m_data.length();
+ m_data = data;
+ document()->textRemoved(this, 0, oldLength);
+ checkStyleSheet();
+}
+
+String ProcessingInstruction::nodeName() const
+{
+ return m_target;
+}
+
+Node::NodeType ProcessingInstruction::nodeType() const
+{
+ return PROCESSING_INSTRUCTION_NODE;
+}
+
+String ProcessingInstruction::nodeValue() const
+{
+ return m_data;
+}
+
+void ProcessingInstruction::setNodeValue(const String& nodeValue, ExceptionCode& ec)
+{
+ // NO_MODIFICATION_ALLOWED_ERR: taken care of by setData()
+ setData(nodeValue, ec);
+}
+
+PassRefPtr<Node> ProcessingInstruction::cloneNode(bool /*deep*/)
+{
+ // FIXME: Is it a problem that this does not copy m_localHref?
+ // What about other data members?
+ return create(document(), m_target, m_data);
+}
+
+// DOM Section 1.1.1
+bool ProcessingInstruction::childTypeAllowed(NodeType)
+{
+ return false;
+}
+
+void ProcessingInstruction::checkStyleSheet()
+{
+ if (m_target == "xml-stylesheet" && document()->frame() && parentNode() == document()) {
+ // see http://www.w3.org/TR/xml-stylesheet/
+ // ### support stylesheet included in a fragment of this (or another) document
+ // ### make sure this gets called when adding from javascript
+ bool attrsOk;
+ const HashMap<String, String> attrs = parseAttributes(m_data, attrsOk);
+ if (!attrsOk)
+ return;
+ HashMap<String, String>::const_iterator i = attrs.find("type");
+ String type;
+ if (i != attrs.end())
+ type = i->second;
+
+ bool isCSS = type.isEmpty() || type == "text/css";
+#if ENABLE(XSLT)
+ m_isXSL = (type == "text/xml" || type == "text/xsl" || type == "application/xml" ||
+ type == "application/xhtml+xml" || type == "application/rss+xml" || type == "application/atom+xml");
+ if (!isCSS && !m_isXSL)
+#else
+ if (!isCSS)
+#endif
+ return;
+
+ String href = attrs.get("href");
+ String alternate = attrs.get("alternate");
+ m_alternate = alternate == "yes";
+ m_title = attrs.get("title");
+ m_media = attrs.get("media");
+
+ if (href.length() > 1 && href[0] == '#') {
+ m_localHref = href.substring(1);
+#if ENABLE(XSLT)
+ // We need to make a synthetic XSLStyleSheet that is embedded. It needs to be able
+ // to kick off import/include loads that can hang off some parent sheet.
+ if (m_isXSL) {
+ KURL finalURL(ParsedURLString, m_localHref);
+ m_sheet = XSLStyleSheet::createInline(this, finalURL);
+ m_loading = false;
+ }
+#endif
+ } else {
+ if (m_cachedSheet) {
+ m_cachedSheet->removeClient(this);
+ m_cachedSheet = 0;
+ }
+
+ String url = document()->completeURL(href).string();
+ if (!dispatchBeforeLoadEvent(url))
+ return;
+
+ m_loading = true;
+ document()->addPendingSheet();
+
+#if ENABLE(XSLT)
+ if (m_isXSL)
+ m_cachedSheet = document()->docLoader()->requestXSLStyleSheet(url);
+ else
+#endif
+ {
+ String charset = attrs.get("charset");
+ if (charset.isEmpty())
+ charset = document()->frame()->loader()->writer()->encoding();
+
+ m_cachedSheet = document()->docLoader()->requestCSSStyleSheet(url, charset);
+ }
+ if (m_cachedSheet)
+ m_cachedSheet->addClient(this);
+ else {
+ // The request may have been denied if (for example) the stylesheet is local and the document is remote.
+ m_loading = false;
+ document()->removePendingSheet();
+ }
+ }
+ }
+}
+
+bool ProcessingInstruction::isLoading() const
+{
+ if (m_loading)
+ return true;
+ if (!m_sheet)
+ return false;
+ return m_sheet->isLoading();
+}
+
+bool ProcessingInstruction::sheetLoaded()
+{
+ if (!isLoading()) {
+ document()->removePendingSheet();
+ return true;
+ }
+ return false;
+}
+
+void ProcessingInstruction::setCSSStyleSheet(const String& href, const KURL& baseURL, const String& charset, const CachedCSSStyleSheet* sheet)
+{
+#if ENABLE(XSLT)
+ ASSERT(!m_isXSL);
+#endif
+ RefPtr<CSSStyleSheet> newSheet = CSSStyleSheet::create(this, href, baseURL, charset);
+ m_sheet = newSheet;
+ // We don't need the cross-origin security check here because we are
+ // getting the sheet text in "strict" mode. This enforces a valid CSS MIME
+ // type.
+ parseStyleSheet(sheet->sheetText(true));
+ newSheet->setTitle(m_title);
+ newSheet->setMedia(MediaList::create(newSheet.get(), m_media));
+ newSheet->setDisabled(m_alternate);
+}
+
+#if ENABLE(XSLT)
+void ProcessingInstruction::setXSLStyleSheet(const String& href, const KURL& baseURL, const String& sheet)
+{
+ ASSERT(m_isXSL);
+ m_sheet = XSLStyleSheet::create(this, href, baseURL);
+ parseStyleSheet(sheet);
+}
+#endif
+
+void ProcessingInstruction::parseStyleSheet(const String& sheet)
+{
+ m_sheet->parseString(sheet, true);
+ if (m_cachedSheet)
+ m_cachedSheet->removeClient(this);
+ m_cachedSheet = 0;
+
+ m_loading = false;
+ m_sheet->checkLoaded();
+}
+
+void ProcessingInstruction::setCSSStyleSheet(PassRefPtr<CSSStyleSheet> sheet)
+{
+ ASSERT(!m_cachedSheet);
+ ASSERT(!m_loading);
+ m_sheet = sheet;
+ m_sheet->setTitle(m_title);
+ m_sheet->setDisabled(m_alternate);
+}
+
+bool ProcessingInstruction::offsetInCharacters() const
+{
+ return true;
+}
+
+int ProcessingInstruction::maxCharacterOffset() const
+{
+ return static_cast<int>(m_data.length());
+}
+
+void ProcessingInstruction::addSubresourceAttributeURLs(ListHashSet<KURL>& urls) const
+{
+ if (!sheet())
+ return;
+
+ addSubresourceURL(urls, sheet()->baseURL());
+}
+
+void ProcessingInstruction::insertedIntoDocument()
+{
+ ContainerNode::insertedIntoDocument();
+ document()->addStyleSheetCandidateNode(this, m_createdByParser);
+ checkStyleSheet();
+}
+
+void ProcessingInstruction::removedFromDocument()
+{
+ ContainerNode::removedFromDocument();
+
+ document()->removeStyleSheetCandidateNode(this);
+
+ // FIXME: It's terrible to do a synchronous update of the style selector just because a <style> or <link> element got removed.
+ if (m_cachedSheet)
+ document()->updateStyleSelector();
+}
+
+void ProcessingInstruction::finishParsingChildren()
+{
+ m_createdByParser = false;
+ ContainerNode::finishParsingChildren();
+}
+
+} // namespace