The Tor Browser / annotate

content/xul/templates/src/nsXULTemplateResultRDF.cpp@6474c204b198 (annotated)

content/xul/templates/src/nsXULTemplateResultRDF.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #include "nsXULTemplateResultRDF.h"
michael@0 7 #include "nsXULContentUtils.h"
michael@0 8
michael@0 9 // XXXndeakin for some reason, making this class have classinfo breaks trees.
michael@0 10 //#include "nsIDOMClassInfo.h"
michael@0 11
michael@0 12 NS_IMPL_CYCLE_COLLECTION(nsXULTemplateResultRDF, mQuery)
michael@0 13
michael@0 14 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsXULTemplateResultRDF)
michael@0 15 NS_INTERFACE_MAP_ENTRY(nsIXULTemplateResult)
michael@0 16 NS_INTERFACE_MAP_ENTRY(nsISupports)
michael@0 17 NS_INTERFACE_MAP_END
michael@0 18
michael@0 19 NS_IMPL_CYCLE_COLLECTING_ADDREF(nsXULTemplateResultRDF)
michael@0 20 NS_IMPL_CYCLE_COLLECTING_RELEASE(nsXULTemplateResultRDF)
michael@0 21
michael@0 22 nsXULTemplateResultRDF::nsXULTemplateResultRDF(nsIRDFResource* aNode)
michael@0 23 : mQuery(nullptr),
michael@0 24 mNode(aNode)
michael@0 25 {
michael@0 26 }
michael@0 27
michael@0 28 nsXULTemplateResultRDF::nsXULTemplateResultRDF(nsRDFQuery* aQuery,
michael@0 29 const Instantiation& aInst,
michael@0 30 nsIRDFResource *aNode)
michael@0 31 : mQuery(aQuery),
michael@0 32 mNode(aNode),
michael@0 33 mInst(aInst)
michael@0 34 {
michael@0 35 }
michael@0 36
michael@0 37 nsXULTemplateResultRDF::~nsXULTemplateResultRDF()
michael@0 38 {
michael@0 39 }
michael@0 40
michael@0 41 NS_IMETHODIMP
michael@0 42 nsXULTemplateResultRDF::GetIsContainer(bool* aIsContainer)
michael@0 43 {
michael@0 44 *aIsContainer = false;
michael@0 45
michael@0 46 if (mNode) {
michael@0 47 nsXULTemplateQueryProcessorRDF* processor = GetProcessor();
michael@0 48 if (processor)
michael@0 49 return processor->CheckContainer(mNode, aIsContainer);
michael@0 50 }
michael@0 51
michael@0 52 return NS_OK;
michael@0 53 }
michael@0 54
michael@0 55 NS_IMETHODIMP
michael@0 56 nsXULTemplateResultRDF::GetIsEmpty(bool* aIsEmpty)
michael@0 57 {
michael@0 58 *aIsEmpty = true;
michael@0 59
michael@0 60 if (mNode) {
michael@0 61 nsXULTemplateQueryProcessorRDF* processor = GetProcessor();
michael@0 62 if (processor)
michael@0 63 return processor->CheckEmpty(mNode, aIsEmpty);
michael@0 64 }
michael@0 65
michael@0 66 return NS_OK;
michael@0 67 }
michael@0 68
michael@0 69 NS_IMETHODIMP
michael@0 70 nsXULTemplateResultRDF::GetMayProcessChildren(bool* aMayProcessChildren)
michael@0 71 {
michael@0 72 // RDF always allows recursion
michael@0 73 *aMayProcessChildren = true;
michael@0 74 return NS_OK;
michael@0 75 }
michael@0 76
michael@0 77 NS_IMETHODIMP
michael@0 78 nsXULTemplateResultRDF::GetId(nsAString& aId)
michael@0 79 {
michael@0 80 if (! mNode)
michael@0 81 return NS_ERROR_FAILURE;
michael@0 82
michael@0 83 const char* uri;
michael@0 84 mNode->GetValueConst(&uri);
michael@0 85
michael@0 86 CopyUTF8toUTF16(uri, aId);
michael@0 87
michael@0 88 return NS_OK;
michael@0 89 }
michael@0 90
michael@0 91 NS_IMETHODIMP
michael@0 92 nsXULTemplateResultRDF::GetResource(nsIRDFResource** aResource)
michael@0 93 {
michael@0 94 *aResource = mNode;
michael@0 95 NS_IF_ADDREF(*aResource);
michael@0 96 return NS_OK;
michael@0 97 }
michael@0 98
michael@0 99 NS_IMETHODIMP
michael@0 100 nsXULTemplateResultRDF::GetType(nsAString& aType)
michael@0 101 {
michael@0 102 aType.Truncate();
michael@0 103
michael@0 104 nsresult rv = NS_OK;
michael@0 105
michael@0 106 nsXULTemplateQueryProcessorRDF* processor = GetProcessor();
michael@0 107 if (processor) {
michael@0 108 bool found;
michael@0 109 rv = processor->CheckIsSeparator(mNode, &found);
michael@0 110 if (NS_SUCCEEDED(rv) && found)
michael@0 111 aType.AssignLiteral("separator");
michael@0 112 }
michael@0 113
michael@0 114 return rv;
michael@0 115 }
michael@0 116
michael@0 117 NS_IMETHODIMP
michael@0 118 nsXULTemplateResultRDF::GetBindingFor(nsIAtom* aVar, nsAString& aValue)
michael@0 119 {
michael@0 120 nsCOMPtr<nsIRDFNode> val;
michael@0 121 GetAssignment(aVar, getter_AddRefs(val));
michael@0 122
michael@0 123 return nsXULContentUtils::GetTextForNode(val, aValue);
michael@0 124 }
michael@0 125
michael@0 126 NS_IMETHODIMP
michael@0 127 nsXULTemplateResultRDF::GetBindingObjectFor(nsIAtom* aVar, nsISupports** aValue)
michael@0 128 {
michael@0 129 GetAssignment(aVar, (nsIRDFNode **)aValue);
michael@0 130
michael@0 131 return NS_OK;
michael@0 132 }
michael@0 133
michael@0 134 NS_IMETHODIMP
michael@0 135 nsXULTemplateResultRDF::RuleMatched(nsISupports* aQuery, nsIDOMNode* aRuleNode)
michael@0 136 {
michael@0 137 // when a rule matches, set the bindings that must be used.
michael@0 138 nsXULTemplateQueryProcessorRDF* processor = GetProcessor();
michael@0 139 if (processor) {
michael@0 140 RDFBindingSet* bindings = processor->GetBindingsForRule(aRuleNode);
michael@0 141 if (bindings) {
michael@0 142 nsresult rv = mBindingValues.SetBindingSet(bindings);
michael@0 143 if (NS_FAILED(rv))
michael@0 144 return rv;
michael@0 145
michael@0 146 bindings->AddDependencies(mNode, this);
michael@0 147 }
michael@0 148 }
michael@0 149
michael@0 150 return NS_OK;
michael@0 151 }
michael@0 152
michael@0 153 NS_IMETHODIMP
michael@0 154 nsXULTemplateResultRDF::HasBeenRemoved()
michael@0 155 {
michael@0 156 // when a result is no longer used, clean up the dependencies and
michael@0 157 // memory elements that refer to it
michael@0 158 mBindingValues.RemoveDependencies(mNode, this);
michael@0 159
michael@0 160 nsXULTemplateQueryProcessorRDF* processor = GetProcessor();
michael@0 161 if (processor)
michael@0 162 processor->RemoveMemoryElements(mInst, this);
michael@0 163
michael@0 164 return NS_OK;
michael@0 165 }
michael@0 166
michael@0 167
michael@0 168 void
michael@0 169 nsXULTemplateResultRDF::GetAssignment(nsIAtom* aVar, nsIRDFNode** aValue)
michael@0 170 {
michael@0 171 // look up a variable in the assignments map
michael@0 172 *aValue = nullptr;
michael@0 173 mInst.mAssignments.GetAssignmentFor(aVar, aValue);
michael@0 174
michael@0 175 // if not found, look up the variable in the bindings
michael@0 176 if (! *aValue)
michael@0 177 mBindingValues.GetAssignmentFor(this, aVar, aValue);
michael@0 178 }
michael@0 179
michael@0 180
michael@0 181 bool
michael@0 182 nsXULTemplateResultRDF::SyncAssignments(nsIRDFResource* aSubject,
michael@0 183 nsIRDFResource* aPredicate,
michael@0 184 nsIRDFNode* aTarget)
michael@0 185 {
michael@0 186 // synchronize the bindings when an assertion is added or removed
michael@0 187 RDFBindingSet* bindingset = mBindingValues.GetBindingSet();
michael@0 188 if (bindingset) {
michael@0 189 return bindingset->SyncAssignments(aSubject, aPredicate, aTarget,
michael@0 190 (aSubject == mNode) ? mQuery->GetMemberVariable() : nullptr,
michael@0 191 this, mBindingValues);
michael@0 192 }
michael@0 193
michael@0 194 return false;
michael@0 195 }
michael@0 196
michael@0 197 bool
michael@0 198 nsXULTemplateResultRDF::HasMemoryElement(const MemoryElement& aMemoryElement)
michael@0 199 {
michael@0 200 MemoryElementSet::ConstIterator last = mInst.mSupport.Last();
michael@0 201 for (MemoryElementSet::ConstIterator element = mInst.mSupport.First();
michael@0 202 element != last; ++element) {
michael@0 203 if ((*element).Equals(aMemoryElement))
michael@0 204 return true;
michael@0 205 }
michael@0 206
michael@0 207 return false;
michael@0 208 }

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