1 files changed, 189 insertions, 0 deletions
diff --git a/dom/xul/templates/nsXULTemplateResultXML.cpp b/dom/xul/templates/nsXULTemplateResultXML.cpp
new file mode 100644
index 000000000..6ac4e6004
--- /dev/null
+++ b/dom/xul/templates/nsXULTemplateResultXML.cpp
@@ -0,0 +1,189 @@
+/* -*- 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 "nsIServiceManager.h"
+#include "nsIDOMNode.h"
+#include "nsIDOMElement.h"
+#include "nsIContent.h"
+
+#include "nsIRDFService.h"
+
+#include "nsXULTemplateResultXML.h"
+#include "nsXMLBinding.h"
+
+static uint32_t sTemplateId = 0;
+
+NS_IMPL_ISUPPORTS(nsXULTemplateResultXML, nsIXULTemplateResult)
+
+nsXULTemplateResultXML::nsXULTemplateResultXML(nsXMLQuery* aQuery,
+                                               nsIContent* aNode,
+                                               nsXMLBindingSet* aBindings)
+    : mQuery(aQuery), mNode(aNode)
+{
+    // If the node has an id, create the uri from it. Otherwise, there isn't
+    // anything to identify the node with so just use a somewhat random number.
+    nsCOMPtr<nsIAtom> id = mNode->GetID();
+    if (id) {
+      nsCOMPtr<nsIURI> uri = mNode->GetBaseURI();
+      nsAutoCString spec;
+      uri->GetSpec(spec);
+
+      mId = NS_ConvertUTF8toUTF16(spec);
+
+      nsAutoString idstr;
+      id->ToString(idstr);
+      mId += NS_LITERAL_STRING("#") + idstr;
+    }
+    else {
+      nsAutoString rowid(NS_LITERAL_STRING("row"));
+      rowid.AppendInt(++sTemplateId);
+      mId.Assign(rowid);
+    }
+
+    if (aBindings)
+        mRequiredValues.SetBindingSet(aBindings);
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultXML::GetIsContainer(bool* aIsContainer)
+{
+    // a node is considered a container if it has children
+    *aIsContainer = mNode && mNode->HasChildNodes();
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultXML::GetIsEmpty(bool* aIsEmpty)
+{
+    // a node is considered empty if it has no elements as children
+    nsCOMPtr<nsIContent> content = do_QueryInterface(mNode);
+    if (content) {
+        for (nsIContent* child = content->GetFirstChild();
+             child;
+             child = child->GetNextSibling()) {
+            if (child->IsElement()) {
+                *aIsEmpty = false;
+                return NS_OK;
+            }
+        }
+    }
+
+    *aIsEmpty = true;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultXML::GetMayProcessChildren(bool* aMayProcessChildren)
+{
+    *aMayProcessChildren = true;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultXML::GetId(nsAString& aId)
+{
+    aId = mId;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultXML::GetResource(nsIRDFResource** aResource)
+{
+    *aResource = nullptr;
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultXML::GetType(nsAString& aType)
+{
+    aType.Truncate();
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultXML::GetBindingFor(nsIAtom* aVar, nsAString& aValue)
+{
+    NS_ENSURE_ARG_POINTER(aVar);
+
+    // get the position of the atom in the variables table
+    nsXMLBinding* binding;
+
+    int32_t idx = mRequiredValues.LookupTargetIndex(aVar, &binding);
+    if (idx >= 0) {
+        mRequiredValues.GetStringAssignmentFor(this, binding, idx, aValue);
+        return NS_OK;
+    }
+
+    idx = mOptionalValues.LookupTargetIndex(aVar, &binding);
+    if (idx >= 0) {
+        mOptionalValues.GetStringAssignmentFor(this, binding, idx, aValue);
+        return NS_OK;
+    }
+
+    // if the variable is not bound, just use the variable name as the name of
+    // an attribute to retrieve
+    nsAutoString attr;
+    aVar->ToString(attr);
+
+    if (attr.Length() > 1) {
+        nsCOMPtr<nsIDOMElement> element = do_QueryInterface(mNode);
+        if (element)
+            return element->GetAttribute(Substring(attr, 1), aValue);
+    }
+
+    aValue.Truncate();
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultXML::GetBindingObjectFor(nsIAtom* aVar, nsISupports** aValue)
+{
+    NS_ENSURE_ARG_POINTER(aVar);
+
+    nsXMLBinding* binding;
+    nsCOMPtr<nsISupports> node;
+
+    if (mQuery && aVar == mQuery->GetMemberVariable()) {
+        node = mNode;
+    }
+    else {
+        int32_t idx = mRequiredValues.LookupTargetIndex(aVar, &binding);
+        if (idx > 0) {
+            node = mRequiredValues.GetNodeAssignmentFor(this, binding, idx);
+        }
+        else {
+            idx = mOptionalValues.LookupTargetIndex(aVar, &binding);
+            if (idx > 0) {
+                node = mOptionalValues.GetNodeAssignmentFor(this, binding, idx);
+            }
+        }
+    }
+
+    node.forget(aValue);
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultXML::RuleMatched(nsISupports* aQueryNode,
+                                    nsIDOMNode* aRuleNode)
+{
+    // when a rule matches, set the bindings that must be used.
+    nsXULTemplateQueryProcessorXML* processor = mQuery ? mQuery->Processor() :
+                                                         nullptr;
+    if (processor) {
+        nsXMLBindingSet* bindings =
+            processor->GetOptionalBindingsForRule(aRuleNode);
+        if (bindings)
+            mOptionalValues.SetBindingSet(bindings);
+    }
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP
+nsXULTemplateResultXML::HasBeenRemoved()
+{
+    return NS_OK;
+}