зеркало из https://github.com/mozilla/gecko-dev.git
91 строка
2.7 KiB
C++
91 строка
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "nsContentTestNode.h"
|
|
#include "nsIRDFResource.h"
|
|
#include "nsIAtom.h"
|
|
#include "nsIDOMElement.h"
|
|
#include "nsXULContentUtils.h"
|
|
#include "nsIXULTemplateResult.h"
|
|
#include "nsIXULTemplateBuilder.h"
|
|
#include "nsXULTemplateQueryProcessorRDF.h"
|
|
|
|
#include "mozilla/Logging.h"
|
|
|
|
using mozilla::LogLevel;
|
|
|
|
extern mozilla::LazyLogModule gXULTemplateLog;
|
|
|
|
nsContentTestNode::nsContentTestNode(nsXULTemplateQueryProcessorRDF* aProcessor,
|
|
nsIAtom* aRefVariable)
|
|
: TestNode(nullptr),
|
|
mProcessor(aProcessor),
|
|
mDocument(nullptr),
|
|
mRefVariable(aRefVariable),
|
|
mTag(nullptr)
|
|
{
|
|
if (MOZ_LOG_TEST(gXULTemplateLog, LogLevel::Debug)) {
|
|
nsAutoString tag(NS_LITERAL_STRING("(none)"));
|
|
if (mTag)
|
|
mTag->ToString(tag);
|
|
|
|
nsAutoString refvar(NS_LITERAL_STRING("(none)"));
|
|
if (aRefVariable)
|
|
aRefVariable->ToString(refvar);
|
|
|
|
MOZ_LOG(gXULTemplateLog, LogLevel::Debug,
|
|
("nsContentTestNode[%p]: ref-var=%s tag=%s",
|
|
this, NS_ConvertUTF16toUTF8(refvar).get(),
|
|
NS_ConvertUTF16toUTF8(tag).get()));
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
nsContentTestNode::FilterInstantiations(InstantiationSet& aInstantiations,
|
|
bool* aCantHandleYet) const
|
|
|
|
{
|
|
if (aCantHandleYet)
|
|
*aCantHandleYet = false;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsContentTestNode::Constrain(InstantiationSet& aInstantiations)
|
|
{
|
|
// contrain the matches to those that have matched in the template builder
|
|
|
|
nsIXULTemplateBuilder* builder = mProcessor->GetBuilder();
|
|
if (!builder) {
|
|
aInstantiations.Clear();
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult rv;
|
|
|
|
InstantiationSet::Iterator last = aInstantiations.Last();
|
|
for (InstantiationSet::Iterator inst = aInstantiations.First(); inst != last; ++inst) {
|
|
|
|
nsCOMPtr<nsIRDFNode> refValue;
|
|
bool hasRefBinding = inst->mAssignments.GetAssignmentFor(mRefVariable,
|
|
getter_AddRefs(refValue));
|
|
if (hasRefBinding) {
|
|
nsCOMPtr<nsIRDFResource> refResource = do_QueryInterface(refValue);
|
|
if (refResource) {
|
|
bool generated;
|
|
rv = builder->HasGeneratedContent(refResource, mTag, &generated);
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
if (generated)
|
|
continue;
|
|
}
|
|
}
|
|
|
|
aInstantiations.Erase(inst--);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|