1 files changed, 124 insertions, 0 deletions
diff --git a/dom/xslt/xslt/txXSLTEnvironmentFunctionCall.cpp b/dom/xslt/xslt/txXSLTEnvironmentFunctionCall.cpp
new file mode 100644
index 0000000000..02068f2b35
--- /dev/null
+++ b/dom/xslt/xslt/txXSLTEnvironmentFunctionCall.cpp
@@ -0,0 +1,124 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "txIXPathContext.h"
+#include "nsGkAtoms.h"
+#include "nsError.h"
+#include "txXMLUtils.h"
+#include "txXSLTFunctions.h"
+#include "txExpandedName.h"
+#include "txNamespaceMap.h"
+
+nsresult txXSLTEnvironmentFunctionCall::evaluate(txIEvalContext* aContext,
+                                                 txAExprResult** aResult) {
+  *aResult = nullptr;
+
+  if (!requireParams(1, 1, aContext)) {
+    return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
+  }
+
+  nsAutoString property;
+  nsresult rv = mParams[0]->evaluateToString(aContext, property);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  txExpandedName qname;
+  rv = qname.init(property, mMappings, mType != FUNCTION_AVAILABLE);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  switch (mType) {
+    case SYSTEM_PROPERTY: {
+      if (qname.mNamespaceID == kNameSpaceID_XSLT) {
+        if (qname.mLocalName == nsGkAtoms::version) {
+          return aContext->recycler()->getNumberResult(1.0, aResult);
+        }
+        if (qname.mLocalName == nsGkAtoms::vendor) {
+          return aContext->recycler()->getStringResult(u"Transformiix"_ns,
+                                                       aResult);
+        }
+        if (qname.mLocalName == nsGkAtoms::vendorUrl) {
+          return aContext->recycler()->getStringResult(
+              u"http://www.mozilla.org/projects/xslt/"_ns, aResult);
+        }
+      }
+      aContext->recycler()->getEmptyStringResult(aResult);
+      break;
+    }
+    case ELEMENT_AVAILABLE: {
+      bool val = qname.mNamespaceID == kNameSpaceID_XSLT &&
+                 (qname.mLocalName == nsGkAtoms::applyImports ||
+                  qname.mLocalName == nsGkAtoms::applyTemplates ||
+                  qname.mLocalName == nsGkAtoms::attribute ||
+                  qname.mLocalName == nsGkAtoms::attributeSet ||
+                  qname.mLocalName == nsGkAtoms::callTemplate ||
+                  qname.mLocalName == nsGkAtoms::choose ||
+                  qname.mLocalName == nsGkAtoms::comment ||
+                  qname.mLocalName == nsGkAtoms::copy ||
+                  qname.mLocalName == nsGkAtoms::copyOf ||
+                  qname.mLocalName == nsGkAtoms::decimalFormat ||
+                  qname.mLocalName == nsGkAtoms::element ||
+                  qname.mLocalName == nsGkAtoms::fallback ||
+                  qname.mLocalName == nsGkAtoms::forEach ||
+                  qname.mLocalName == nsGkAtoms::_if ||
+                  qname.mLocalName == nsGkAtoms::import ||
+                  qname.mLocalName == nsGkAtoms::include ||
+                  qname.mLocalName == nsGkAtoms::key ||
+                  qname.mLocalName == nsGkAtoms::message ||
+                  // qname.mLocalName == nsGkAtoms::namespaceAlias ||
+                  qname.mLocalName == nsGkAtoms::number ||
+                  qname.mLocalName == nsGkAtoms::otherwise ||
+                  qname.mLocalName == nsGkAtoms::output ||
+                  qname.mLocalName == nsGkAtoms::param ||
+                  qname.mLocalName == nsGkAtoms::preserveSpace ||
+                  qname.mLocalName == nsGkAtoms::processingInstruction ||
+                  qname.mLocalName == nsGkAtoms::sort ||
+                  qname.mLocalName == nsGkAtoms::stripSpace ||
+                  qname.mLocalName == nsGkAtoms::stylesheet ||
+                  qname.mLocalName == nsGkAtoms::_template ||
+                  qname.mLocalName == nsGkAtoms::text ||
+                  qname.mLocalName == nsGkAtoms::transform ||
+                  qname.mLocalName == nsGkAtoms::valueOf ||
+                  qname.mLocalName == nsGkAtoms::variable ||
+                  qname.mLocalName == nsGkAtoms::when ||
+                  qname.mLocalName == nsGkAtoms::withParam);
+
+      aContext->recycler()->getBoolResult(val, aResult);
+      break;
+    }
+    case FUNCTION_AVAILABLE: {
+      extern bool TX_XSLTFunctionAvailable(nsAtom * aName,
+                                           int32_t aNameSpaceID);
+
+      txCoreFunctionCall::eType type;
+      bool val =
+          (qname.mNamespaceID == kNameSpaceID_None &&
+           txCoreFunctionCall::getTypeFromAtom(qname.mLocalName, type)) ||
+          TX_XSLTFunctionAvailable(qname.mLocalName, qname.mNamespaceID);
+
+      aContext->recycler()->getBoolResult(val, aResult);
+      break;
+    }
+  }
+
+  return NS_OK;
+}
+
+Expr::ResultType txXSLTEnvironmentFunctionCall::getReturnType() {
+  return mType == SYSTEM_PROPERTY ? (STRING_RESULT | NUMBER_RESULT)
+                                  : BOOLEAN_RESULT;
+}
+
+bool txXSLTEnvironmentFunctionCall::isSensitiveTo(ContextSensitivity aContext) {
+  return argsSensitiveTo(aContext);
+}
+
+#ifdef TX_TO_STRING
+void txXSLTEnvironmentFunctionCall::appendName(nsAString& aDest) {
+  nsStaticAtom* atom = mType == SYSTEM_PROPERTY ? nsGkAtoms::systemProperty
+                       : mType == ELEMENT_AVAILABLE
+                           ? nsGkAtoms::elementAvailable
+                           : nsGkAtoms::functionAvailable;
+  aDest.Append(atom->GetUTF16String());
+}
+#endif