summaryrefslogtreecommitdiffstats
path: root/Source/WebCore/xml/XPathResult.cpp
diff options
context:
space:
mode:
authorSteve Block <steveblock@google.com>2011-05-13 06:44:40 -0700
committerAndroid (Google) Code Review <android-gerrit@google.com>2011-05-13 06:44:40 -0700
commit08014c20784f3db5df3a89b73cce46037b77eb59 (patch)
tree47749210d31e19e6e2f64036fa8fae2ad693476f /Source/WebCore/xml/XPathResult.cpp
parent860220379e56aeb66424861ad602b07ee22b4055 (diff)
parent4c3661f7918f8b3f139f824efb7855bedccb4c94 (diff)
downloadexternal_webkit-08014c20784f3db5df3a89b73cce46037b77eb59.zip
external_webkit-08014c20784f3db5df3a89b73cce46037b77eb59.tar.gz
external_webkit-08014c20784f3db5df3a89b73cce46037b77eb59.tar.bz2
Merge changes Ide388898,Ic49f367c,I1158a808,Iacb6ca5d,I2100dd3a,I5c1abe54,Ib0ef9902,I31dbc523,I570314b3
* changes: Merge WebKit at r75315: Update WebKit version Merge WebKit at r75315: Add FrameLoaderClient PageCache stubs Merge WebKit at r75315: Stub out AXObjectCache::remove() Merge WebKit at r75315: Fix ImageBuffer Merge WebKit at r75315: Fix PluginData::initPlugins() Merge WebKit at r75315: Fix conflicts Merge WebKit at r75315: Fix Makefiles Merge WebKit at r75315: Move Android-specific WebCore files to Source Merge WebKit at r75315: Initial merge by git.
Diffstat (limited to 'Source/WebCore/xml/XPathResult.cpp')
-rw-r--r--Source/WebCore/xml/XPathResult.cpp219
1 files changed, 219 insertions, 0 deletions
diff --git a/Source/WebCore/xml/XPathResult.cpp b/Source/WebCore/xml/XPathResult.cpp
new file mode 100644
index 0000000..b608280
--- /dev/null
+++ b/Source/WebCore/xml/XPathResult.cpp
@@ -0,0 +1,219 @@
+/*
+ * Copyright (C) 2005 Frerich Raabe <raabe@kde.org>
+ * Copyright (C) 2006, 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "XPathResult.h"
+
+#if ENABLE(XPATH)
+
+#include "Document.h"
+#include "Node.h"
+#include "ExceptionCode.h"
+#include "XPathEvaluator.h"
+#include "XPathException.h"
+
+namespace WebCore {
+
+using namespace XPath;
+
+XPathResult::XPathResult(Document* document, const Value& value)
+ : m_value(value)
+{
+ switch (m_value.type()) {
+ case Value::BooleanValue:
+ m_resultType = BOOLEAN_TYPE;
+ return;
+ case Value::NumberValue:
+ m_resultType = NUMBER_TYPE;
+ return;
+ case Value::StringValue:
+ m_resultType = STRING_TYPE;
+ return;
+ case Value::NodeSetValue:
+ m_resultType = UNORDERED_NODE_ITERATOR_TYPE;
+ m_nodeSetPosition = 0;
+ m_nodeSet = m_value.toNodeSet();
+ m_document = document;
+ m_domTreeVersion = document->domTreeVersion();
+ return;
+ }
+ ASSERT_NOT_REACHED();
+}
+
+XPathResult::~XPathResult()
+{
+}
+
+void XPathResult::convertTo(unsigned short type, ExceptionCode& ec)
+{
+ switch (type) {
+ case ANY_TYPE:
+ break;
+ case NUMBER_TYPE:
+ m_resultType = type;
+ m_value = m_value.toNumber();
+ break;
+ case STRING_TYPE:
+ m_resultType = type;
+ m_value = m_value.toString();
+ break;
+ case BOOLEAN_TYPE:
+ m_resultType = type;
+ m_value = m_value.toBoolean();
+ break;
+ case UNORDERED_NODE_ITERATOR_TYPE:
+ case UNORDERED_NODE_SNAPSHOT_TYPE:
+ case ANY_UNORDERED_NODE_TYPE:
+ case FIRST_ORDERED_NODE_TYPE: // This is correct - singleNodeValue() will take care of ordering.
+ if (!m_value.isNodeSet()) {
+ ec = XPathException::TYPE_ERR;
+ return;
+ }
+ m_resultType = type;
+ break;
+ case ORDERED_NODE_ITERATOR_TYPE:
+ if (!m_value.isNodeSet()) {
+ ec = XPathException::TYPE_ERR;
+ return;
+ }
+ m_nodeSet.sort();
+ m_resultType = type;
+ break;
+ case ORDERED_NODE_SNAPSHOT_TYPE:
+ if (!m_value.isNodeSet()) {
+ ec = XPathException::TYPE_ERR;
+ return;
+ }
+ m_value.toNodeSet().sort();
+ m_resultType = type;
+ break;
+ }
+}
+
+unsigned short XPathResult::resultType() const
+{
+ return m_resultType;
+}
+
+double XPathResult::numberValue(ExceptionCode& ec) const
+{
+ if (resultType() != NUMBER_TYPE) {
+ ec = XPathException::TYPE_ERR;
+ return 0.0;
+ }
+ return m_value.toNumber();
+}
+
+String XPathResult::stringValue(ExceptionCode& ec) const
+{
+ if (resultType() != STRING_TYPE) {
+ ec = XPathException::TYPE_ERR;
+ return String();
+ }
+ return m_value.toString();
+}
+
+bool XPathResult::booleanValue(ExceptionCode& ec) const
+{
+ if (resultType() != BOOLEAN_TYPE) {
+ ec = XPathException::TYPE_ERR;
+ return false;
+ }
+ return m_value.toBoolean();
+}
+
+Node* XPathResult::singleNodeValue(ExceptionCode& ec) const
+{
+ if (resultType() != ANY_UNORDERED_NODE_TYPE && resultType() != FIRST_ORDERED_NODE_TYPE) {
+ ec = XPathException::TYPE_ERR;
+ return 0;
+ }
+
+ const NodeSet& nodes = m_value.toNodeSet();
+ if (resultType() == FIRST_ORDERED_NODE_TYPE)
+ return nodes.firstNode();
+ else
+ return nodes.anyNode();
+}
+
+bool XPathResult::invalidIteratorState() const
+{
+ if (resultType() != UNORDERED_NODE_ITERATOR_TYPE && resultType() != ORDERED_NODE_ITERATOR_TYPE)
+ return false;
+
+ ASSERT(m_document);
+ return m_document->domTreeVersion() != m_domTreeVersion;
+}
+
+unsigned long XPathResult::snapshotLength(ExceptionCode& ec) const
+{
+ if (resultType() != UNORDERED_NODE_SNAPSHOT_TYPE && resultType() != ORDERED_NODE_SNAPSHOT_TYPE) {
+ ec = XPathException::TYPE_ERR;
+ return 0;
+ }
+
+ return m_value.toNodeSet().size();
+}
+
+Node* XPathResult::iterateNext(ExceptionCode& ec)
+{
+ if (resultType() != UNORDERED_NODE_ITERATOR_TYPE && resultType() != ORDERED_NODE_ITERATOR_TYPE) {
+ ec = XPathException::TYPE_ERR;
+ return 0;
+ }
+
+ if (invalidIteratorState()) {
+ ec = INVALID_STATE_ERR;
+ return 0;
+ }
+
+ if (m_nodeSetPosition + 1 > m_nodeSet.size())
+ return 0;
+
+ Node* node = m_nodeSet[m_nodeSetPosition];
+
+ m_nodeSetPosition++;
+
+ return node;
+}
+
+Node* XPathResult::snapshotItem(unsigned long index, ExceptionCode& ec)
+{
+ if (resultType() != UNORDERED_NODE_SNAPSHOT_TYPE && resultType() != ORDERED_NODE_SNAPSHOT_TYPE) {
+ ec = XPathException::TYPE_ERR;
+ return 0;
+ }
+
+ const NodeSet& nodes = m_value.toNodeSet();
+ if (index >= nodes.size())
+ return 0;
+
+ return nodes[index];
+}
+
+}
+
+#endif // ENABLE(XPATH)