The Tor Browser / file comparison
comparison: content/xul/templates/src/nsContentTestNode.cpp
content/xul/templates/src/nsContentTestNode.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
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| -1:000000000000 | 0:4da94435d593 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "nsContentTestNode.h" | |
| 7 #include "nsIRDFResource.h" | |
| 8 #include "nsIAtom.h" | |
| 9 #include "nsIDOMElement.h" | |
| 10 #include "nsXULContentUtils.h" | |
| 11 #include "nsIXULTemplateResult.h" | |
| 12 #include "nsIXULTemplateBuilder.h" | |
| 13 #include "nsXULTemplateQueryProcessorRDF.h" | |
| 14 | |
| 15 #include "prlog.h" | |
| 16 #ifdef PR_LOGGING | |
| 17 extern PRLogModuleInfo* gXULTemplateLog; | |
| 18 #endif | |
| 19 | |
| 20 nsContentTestNode::nsContentTestNode(nsXULTemplateQueryProcessorRDF* aProcessor, | |
| 21 nsIAtom* aRefVariable) | |
| 22 : TestNode(nullptr), | |
| 23 mProcessor(aProcessor), | |
| 24 mDocument(nullptr), | |
| 25 mRefVariable(aRefVariable), | |
| 26 mTag(nullptr) | |
| 27 { | |
| 28 #ifdef PR_LOGGING | |
| 29 if (PR_LOG_TEST(gXULTemplateLog, PR_LOG_DEBUG)) { | |
| 30 nsAutoString tag(NS_LITERAL_STRING("(none)")); | |
| 31 if (mTag) | |
| 32 mTag->ToString(tag); | |
| 33 | |
| 34 nsAutoString refvar(NS_LITERAL_STRING("(none)")); | |
| 35 if (aRefVariable) | |
| 36 aRefVariable->ToString(refvar); | |
| 37 | |
| 38 PR_LOG(gXULTemplateLog, PR_LOG_DEBUG, | |
| 39 ("nsContentTestNode[%p]: ref-var=%s tag=%s", | |
| 40 this, NS_ConvertUTF16toUTF8(refvar).get(), | |
| 41 NS_ConvertUTF16toUTF8(tag).get())); | |
| 42 } | |
| 43 #endif | |
| 44 } | |
| 45 | |
| 46 nsresult | |
| 47 nsContentTestNode::FilterInstantiations(InstantiationSet& aInstantiations, | |
| 48 bool* aCantHandleYet) const | |
| 49 | |
| 50 { | |
| 51 if (aCantHandleYet) | |
| 52 *aCantHandleYet = false; | |
| 53 return NS_OK; | |
| 54 } | |
| 55 | |
| 56 nsresult | |
| 57 nsContentTestNode::Constrain(InstantiationSet& aInstantiations) | |
| 58 { | |
| 59 // contrain the matches to those that have matched in the template builder | |
| 60 | |
| 61 nsIXULTemplateBuilder* builder = mProcessor->GetBuilder(); | |
| 62 if (!builder) { | |
| 63 aInstantiations.Clear(); | |
| 64 return NS_OK; | |
| 65 } | |
| 66 | |
| 67 nsresult rv; | |
| 68 | |
| 69 InstantiationSet::Iterator last = aInstantiations.Last(); | |
| 70 for (InstantiationSet::Iterator inst = aInstantiations.First(); inst != last; ++inst) { | |
| 71 | |
| 72 nsCOMPtr<nsIRDFNode> refValue; | |
| 73 bool hasRefBinding = inst->mAssignments.GetAssignmentFor(mRefVariable, | |
| 74 getter_AddRefs(refValue)); | |
| 75 if (hasRefBinding) { | |
| 76 nsCOMPtr<nsIRDFResource> refResource = do_QueryInterface(refValue); | |
| 77 if (refResource) { | |
| 78 bool generated; | |
| 79 rv = builder->HasGeneratedContent(refResource, mTag, &generated); | |
| 80 if (NS_FAILED(rv)) return rv; | |
| 81 | |
| 82 if (generated) | |
| 83 continue; | |
| 84 } | |
| 85 } | |
| 86 | |
| 87 aInstantiations.Erase(inst--); | |
| 88 } | |
| 89 | |
| 90 return NS_OK; | |
| 91 } |
