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/*
* Copyright (C) 2013 Google, Inc.
*
* 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. OR
* CONTRIBUTORS 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 "third_party/blink/renderer/core/xml/document_xpath_evaluator.h"
#include "third_party/blink/renderer/bindings/core/v8/script_value.h"
#include "third_party/blink/renderer/core/xml/xpath_expression.h"
#include "third_party/blink/renderer/core/xml/xpath_result.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
namespace blink {
// static
const char DocumentXPathEvaluator::kSupplementName[] = "DocumentXPathEvaluator";
DocumentXPathEvaluator::DocumentXPathEvaluator(Document& document)
: Supplement<Document>(document) {}
DocumentXPathEvaluator& DocumentXPathEvaluator::From(Document& document) {
DocumentXPathEvaluator* cache =
Supplement<Document>::From<DocumentXPathEvaluator>(document);
if (!cache) {
cache = MakeGarbageCollected<DocumentXPathEvaluator>(document);
Supplement<Document>::ProvideTo(document, cache);
}
return *cache;
}
XPathExpression* DocumentXPathEvaluator::createExpression(
Document& document,
const String& expression,
XPathNSResolver* resolver,
ExceptionState& exception_state) {
DocumentXPathEvaluator& suplement = From(document);
if (!suplement.xpath_evaluator_)
suplement.xpath_evaluator_ = XPathEvaluator::Create();
return suplement.xpath_evaluator_->createExpression(expression, resolver,
exception_state);
}
XPathNSResolver* DocumentXPathEvaluator::createNSResolver(Document& document,
Node* node_resolver) {
DocumentXPathEvaluator& suplement = From(document);
if (!suplement.xpath_evaluator_)
suplement.xpath_evaluator_ = XPathEvaluator::Create();
return suplement.xpath_evaluator_->createNSResolver(node_resolver);
}
XPathResult* DocumentXPathEvaluator::evaluate(Document& document,
const String& expression,
Node* context_node,
XPathNSResolver* resolver,
uint16_t type,
const ScriptValue&,
ExceptionState& exception_state) {
DocumentXPathEvaluator& suplement = From(document);
if (!suplement.xpath_evaluator_)
suplement.xpath_evaluator_ = XPathEvaluator::Create();
return suplement.xpath_evaluator_->evaluate(
expression, context_node, resolver, type, ScriptValue(), exception_state);
}
void DocumentXPathEvaluator::Trace(blink::Visitor* visitor) {
visitor->Trace(xpath_evaluator_);
Supplement<Document>::Trace(visitor);
}
} // namespace blink
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