author David Anderson <>
Mon, 17 Oct 2011 11:52:12 -0700
changeset 112135 f93960a93ad97a56d308bd9ce25d97cbc175d524
parent 112097 8cfeba5239a9e4f20c462d6fb20421b4e4e7c735
parent 80486 ec7577dec4fceef0ac2717416d9c48289402d935
child 113095 80e4ab0d24bc64ceaa7693ab5def36faffde7a40
permissions -rw-r--r--
Merge from mozilla-central.

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 * The Original Code is Mozilla Communicator client code.
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 * Contributor(s):
 *   Chris Waterson <>
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 * ***** END LICENSE BLOCK ***** */

#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 "prlog.h"
extern PRLogModuleInfo* gXULTemplateLog;

nsContentTestNode::nsContentTestNode(nsXULTemplateQueryProcessorRDF* aProcessor,
                                     nsIAtom* aRefVariable)
    : TestNode(nsnull),
    if (PR_LOG_TEST(gXULTemplateLog, PR_LOG_DEBUG)) {
        nsAutoString tag(NS_LITERAL_STRING("(none)"));
        if (mTag)

        nsAutoString refvar(NS_LITERAL_STRING("(none)"));
        if (aRefVariable)

        PR_LOG(gXULTemplateLog, PR_LOG_DEBUG,
               ("nsContentTestNode[%p]: ref-var=%s tag=%s",
                this, NS_ConvertUTF16toUTF8(refvar).get(),

nsContentTestNode::FilterInstantiations(InstantiationSet& aInstantiations,
                                        bool* aCantHandleYet) const

    if (aCantHandleYet)
        *aCantHandleYet = false;
    return NS_OK;

nsContentTestNode::Constrain(InstantiationSet& aInstantiations)
    // contrain the matches to those that have matched in the template builder

    nsIXULTemplateBuilder* builder = mProcessor->GetBuilder();
    if (!builder) {
        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,
        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)


    return NS_OK;