external/webkit r30707

1 files changed, 255 insertions, 0 deletions

diff --git a/WebCore/dom/ProcessingInstruction.cpp b/WebCore/dom/ProcessingInstruction.cpp
new file mode 100644
index 0000000..34b00d4
--- /dev/null
+++ b/WebCore/dom/ProcessingInstruction.cpp
@@ -0,0 +1,255 @@
+/*
+ * Copyright (C) 2000 Peter Kelly (pmk@post.com)
+ * Copyright (C) 2006, 2008 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 "XMLTokenizer.h" // for parseAttributes()
+
+namespace WebCore {
+
+ProcessingInstruction::ProcessingInstruction(Document* doc)
+    : ContainerNode(doc)
+    , m_cachedSheet(0)
+    , m_loading(false)
+#if ENABLE(XSLT)
+    , m_isXSL(false)
+#endif
+{
+}
+
+ProcessingInstruction::ProcessingInstruction(Document* doc, const String& target, const String& data)
+    : ContainerNode(doc)
+    , m_target(target)
+    , m_data(data)
+    , m_cachedSheet(0)
+    , m_loading(false)
+#if ENABLE(XSLT)
+    , m_isXSL(false)
+#endif
+{
+}
+
+ProcessingInstruction::~ProcessingInstruction()
+{
+    if (m_cachedSheet)
+        m_cachedSheet->deref(this);
+}
+
+void ProcessingInstruction::setData(const String& data, ExceptionCode& ec)
+{
+    // NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly.
+    if (isReadOnlyNode()) {
+        ec = NO_MODIFICATION_ALLOWED_ERR;
+        return;
+    }
+    m_data = data;
+}
+
+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*/)
+{
+    // ### copy m_localHref
+    return new ProcessingInstruction(document(), m_target, m_data);
+}
+
+// DOM Section 1.1.1
+bool ProcessingInstruction::childTypeAllowed(NodeType)
+{
+    return false;
+}
+
+bool ProcessingInstruction::checkStyleSheet()
+{
+    if (m_target == "xml-stylesheet") {
+        // 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 true;
+        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 true;
+
+        String href = attrs.get("href");
+
+        if (href.length() > 1) {
+            if (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) {
+                    m_sheet = new XSLStyleSheet(this, m_localHref, true);
+                    m_loading = false;
+                }
+                return !m_isXSL;
+#endif
+            }
+            else
+            {
+                // FIXME: some validation on the URL?
+                if (document()->frame()) {
+                    m_loading = true;
+                    document()->addPendingSheet();
+                    if (m_cachedSheet)
+                        m_cachedSheet->deref(this);
+#if ENABLE(XSLT)
+                    if (m_isXSL)
+                        m_cachedSheet = document()->docLoader()->requestXSLStyleSheet(document()->completeURL(href).string());
+                    else
+#endif
+                    {
+                        String charset = attrs.get("charset");
+                        if (charset.isEmpty())
+                            charset = document()->frame()->loader()->encoding();
+
+                        m_cachedSheet = document()->docLoader()->requestCSSStyleSheet(document()->completeURL(href).string(), charset);
+                    }
+                    if (m_cachedSheet)
+                        m_cachedSheet->ref(this);
+#if ENABLE(XSLT)
+                    return !m_isXSL;
+#endif
+                }
+            }
+        }
+    }
+    
+    return true;
+}
+
+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& url, const String& charset, const CachedCSSStyleSheet* sheet)
+{
+#if ENABLE(XSLT)
+    ASSERT(!m_isXSL);
+#endif
+    m_sheet = new CSSStyleSheet(this, url, charset);
+    parseStyleSheet(sheet->sheetText());
+}
+
+#if ENABLE(XSLT)
+void ProcessingInstruction::setXSLStyleSheet(const String& url, const String& sheet)
+{
+    ASSERT(m_isXSL);
+    m_sheet = new XSLStyleSheet(this, url);
+    parseStyleSheet(sheet);
+}
+#endif
+
+void ProcessingInstruction::parseStyleSheet(const String& sheet)
+{
+    m_sheet->parseString(sheet, true);
+    if (m_cachedSheet)
+        m_cachedSheet->deref(this);
+    m_cachedSheet = 0;
+
+    m_loading = false;
+    m_sheet->checkLoaded();
+}
+
+String ProcessingInstruction::toString() const
+{
+    String result = "<?";
+    result += m_target;
+    result += " ";
+    result += m_data;
+    result += "?>";
+    return result;
+}
+
+void ProcessingInstruction::setCSSStyleSheet(CSSStyleSheet* sheet)
+{
+    ASSERT(!m_cachedSheet);
+    ASSERT(!m_loading);
+    m_sheet = sheet;
+}
+
+bool ProcessingInstruction::offsetInCharacters() const
+{
+    return true;
+}
+
+int ProcessingInstruction::maxCharacterOffset() const 
+{
+    return static_cast<int>(m_data.length());
+}
+
+} // namespace