1 files changed, 208 insertions, 0 deletions
diff --git a/dom/xul/templates/nsXULTemplateResultRDF.cpp b/dom/xul/templates/nsXULTemplateResultRDF.cpp
new file mode 100644
index 000000000..9d53bab7d
--- /dev/null
+++ b/dom/xul/templates/nsXULTemplateResultRDF.cpp
@@ -0,0 +1,208 @@
+/* -*- 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 "nsXULTemplateResultRDF.h"
+#include "nsXULContentUtils.h"
+
+// XXXndeakin for some reason, making this class have classinfo breaks trees.
+//#include "nsIDOMClassInfo.h"
+
+NS_IMPL_CYCLE_COLLECTION(nsXULTemplateResultRDF, mQuery)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsXULTemplateResultRDF)
+  NS_INTERFACE_MAP_ENTRY(nsIXULTemplateResult)
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(nsXULTemplateResultRDF)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(nsXULTemplateResultRDF)
+
+nsXULTemplateResultRDF::nsXULTemplateResultRDF(nsIRDFResource* aNode)
+    : mQuery(nullptr),
+      mNode(aNode)
+{
+}
+
+nsXULTemplateResultRDF::nsXULTemplateResultRDF(nsRDFQuery* aQuery,
+                                               const Instantiation& aInst,
+                                               nsIRDFResource *aNode)
+    : mQuery(aQuery),
+      mNode(aNode),
+      mInst(aInst)
+{
+}
+
+nsXULTemplateResultRDF::~nsXULTemplateResultRDF()
+{
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultRDF::GetIsContainer(bool* aIsContainer)
+{
+    *aIsContainer = false;
+
+    if (mNode) {
+        nsXULTemplateQueryProcessorRDF* processor = GetProcessor();
+        if (processor)
+            return processor->CheckContainer(mNode, aIsContainer);
+    }
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultRDF::GetIsEmpty(bool* aIsEmpty)
+{
+    *aIsEmpty = true;
+
+    if (mNode) {
+        nsXULTemplateQueryProcessorRDF* processor = GetProcessor();
+        if (processor)
+            return processor->CheckEmpty(mNode, aIsEmpty);
+    }
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultRDF::GetMayProcessChildren(bool* aMayProcessChildren)
+{
+    // RDF always allows recursion
+    *aMayProcessChildren = true;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultRDF::GetId(nsAString& aId)
+{
+    if (! mNode)
+        return NS_ERROR_FAILURE;
+
+    const char* uri;
+    mNode->GetValueConst(&uri);
+
+    CopyUTF8toUTF16(uri, aId);
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultRDF::GetResource(nsIRDFResource** aResource)
+{
+    *aResource = mNode;
+    NS_IF_ADDREF(*aResource);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultRDF::GetType(nsAString& aType)
+{
+    aType.Truncate();
+
+    nsresult rv = NS_OK;
+
+    nsXULTemplateQueryProcessorRDF* processor = GetProcessor();
+    if (processor) {
+        bool found;
+        rv = processor->CheckIsSeparator(mNode, &found);
+        if (NS_SUCCEEDED(rv) && found)
+            aType.AssignLiteral("separator");
+    }
+
+    return rv;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultRDF::GetBindingFor(nsIAtom* aVar, nsAString& aValue)
+{
+    nsCOMPtr<nsIRDFNode> val;
+    GetAssignment(aVar, getter_AddRefs(val));
+
+    return nsXULContentUtils::GetTextForNode(val, aValue);
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultRDF::GetBindingObjectFor(nsIAtom* aVar, nsISupports** aValue)
+{
+    GetAssignment(aVar, (nsIRDFNode **)aValue);
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultRDF::RuleMatched(nsISupports* aQuery, nsIDOMNode* aRuleNode)
+{
+    // when a rule matches, set the bindings that must be used.
+    nsXULTemplateQueryProcessorRDF* processor = GetProcessor();
+    if (processor) {
+        RDFBindingSet* bindings = processor->GetBindingsForRule(aRuleNode);
+        if (bindings) {
+            nsresult rv = mBindingValues.SetBindingSet(bindings);
+            if (NS_FAILED(rv))
+                return rv;
+
+            bindings->AddDependencies(mNode, this);
+        }
+    }
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultRDF::HasBeenRemoved()
+{
+    // when a result is no longer used, clean up the dependencies and
+    // memory elements that refer to it
+    mBindingValues.RemoveDependencies(mNode, this);
+
+    nsXULTemplateQueryProcessorRDF* processor = GetProcessor();
+    if (processor)
+        processor->RemoveMemoryElements(mInst, this);
+
+    return NS_OK;
+}
+
+
+void
+nsXULTemplateResultRDF::GetAssignment(nsIAtom* aVar, nsIRDFNode** aValue)
+{
+    // look up a variable in the assignments map
+    *aValue = nullptr;
+    mInst.mAssignments.GetAssignmentFor(aVar, aValue);
+
+    // if not found, look up the variable in the bindings
+    if (! *aValue)
+        mBindingValues.GetAssignmentFor(this, aVar, aValue);
+}
+
+
+bool
+nsXULTemplateResultRDF::SyncAssignments(nsIRDFResource* aSubject,
+                                        nsIRDFResource* aPredicate,
+                                        nsIRDFNode* aTarget)
+{
+    // synchronize the bindings when an assertion is added or removed
+    RDFBindingSet* bindingset = mBindingValues.GetBindingSet();
+    if (bindingset) {
+        return bindingset->SyncAssignments(aSubject, aPredicate, aTarget,
+            (aSubject == mNode) ? mQuery->GetMemberVariable() : nullptr,
+            this, mBindingValues);
+    }
+
+    return false;
+}
+
+bool
+nsXULTemplateResultRDF::HasMemoryElement(const MemoryElement& aMemoryElement)
+{
+    MemoryElementSet::ConstIterator last = mInst.mSupport.Last();
+    for (MemoryElementSet::ConstIterator element = mInst.mSupport.First();
+                                         element != last; ++element) {
+        if ((*element).Equals(aMemoryElement))
+            return true;
+    }
+
+    return false;
+}