The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/content/xul/templates/src/nsContentTestNode.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,91 @@
     1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "nsContentTestNode.h"
    1.10 +#include "nsIRDFResource.h"
    1.11 +#include "nsIAtom.h"
    1.12 +#include "nsIDOMElement.h"
    1.13 +#include "nsXULContentUtils.h"
    1.14 +#include "nsIXULTemplateResult.h"
    1.15 +#include "nsIXULTemplateBuilder.h"
    1.16 +#include "nsXULTemplateQueryProcessorRDF.h"
    1.17 +
    1.18 +#include "prlog.h"
    1.19 +#ifdef PR_LOGGING
    1.20 +extern PRLogModuleInfo* gXULTemplateLog;
    1.21 +#endif
    1.22 +
    1.23 +nsContentTestNode::nsContentTestNode(nsXULTemplateQueryProcessorRDF* aProcessor,
    1.24 +                                     nsIAtom* aRefVariable)
    1.25 +    : TestNode(nullptr),
    1.26 +      mProcessor(aProcessor),
    1.27 +      mDocument(nullptr),
    1.28 +      mRefVariable(aRefVariable),
    1.29 +      mTag(nullptr)
    1.30 +{
    1.31 +#ifdef PR_LOGGING
    1.32 +    if (PR_LOG_TEST(gXULTemplateLog, PR_LOG_DEBUG)) {
    1.33 +        nsAutoString tag(NS_LITERAL_STRING("(none)"));
    1.34 +        if (mTag)
    1.35 +            mTag->ToString(tag);
    1.36 +
    1.37 +        nsAutoString refvar(NS_LITERAL_STRING("(none)"));
    1.38 +        if (aRefVariable)
    1.39 +            aRefVariable->ToString(refvar);
    1.40 +
    1.41 +        PR_LOG(gXULTemplateLog, PR_LOG_DEBUG,
    1.42 +               ("nsContentTestNode[%p]: ref-var=%s tag=%s",
    1.43 +                this, NS_ConvertUTF16toUTF8(refvar).get(),
    1.44 +                NS_ConvertUTF16toUTF8(tag).get()));
    1.45 +    }
    1.46 +#endif
    1.47 +}
    1.48 +
    1.49 +nsresult
    1.50 +nsContentTestNode::FilterInstantiations(InstantiationSet& aInstantiations,
    1.51 +                                        bool* aCantHandleYet) const
    1.52 +
    1.53 +{
    1.54 +    if (aCantHandleYet)
    1.55 +        *aCantHandleYet = false;
    1.56 +    return NS_OK;
    1.57 +}
    1.58 +
    1.59 +nsresult
    1.60 +nsContentTestNode::Constrain(InstantiationSet& aInstantiations)
    1.61 +{
    1.62 +    // contrain the matches to those that have matched in the template builder
    1.63 +
    1.64 +    nsIXULTemplateBuilder* builder = mProcessor->GetBuilder();
    1.65 +    if (!builder) {
    1.66 +        aInstantiations.Clear();
    1.67 +        return NS_OK;
    1.68 +    }
    1.69 +
    1.70 +    nsresult rv;
    1.71 +
    1.72 +    InstantiationSet::Iterator last = aInstantiations.Last();
    1.73 +    for (InstantiationSet::Iterator inst = aInstantiations.First(); inst != last; ++inst) {
    1.74 +
    1.75 +        nsCOMPtr<nsIRDFNode> refValue;
    1.76 +        bool hasRefBinding = inst->mAssignments.GetAssignmentFor(mRefVariable,
    1.77 +                                                                   getter_AddRefs(refValue));
    1.78 +        if (hasRefBinding) {
    1.79 +            nsCOMPtr<nsIRDFResource> refResource = do_QueryInterface(refValue);
    1.80 +            if (refResource) {
    1.81 +                bool generated;
    1.82 +                rv = builder->HasGeneratedContent(refResource, mTag, &generated);
    1.83 +                if (NS_FAILED(rv)) return rv;
    1.84 +
    1.85 +                if (generated)
    1.86 +                    continue;
    1.87 +            }
    1.88 +        }
    1.89 +
    1.90 +        aInstantiations.Erase(inst--);
    1.91 +    }
    1.92 +
    1.93 +    return NS_OK;
    1.94 +}