1 files changed, 69 insertions, 0 deletions
diff --git a/dom/svg/SVGTransformList.cpp b/dom/svg/SVGTransformList.cpp
new file mode 100644
index 0000000000..244ca61c85
--- /dev/null
+++ b/dom/svg/SVGTransformList.cpp
@@ -0,0 +1,69 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 "SVGTransformList.h"
+#include "SVGTransformListParser.h"
+#include "nsString.h"
+#include "nsError.h"
+
+namespace mozilla {
+
+gfxMatrix SVGTransformList::GetConsolidationMatrix() const {
+  // To benefit from Return Value Optimization and avoid copy constructor calls
+  // due to our use of return-by-value, we must return the exact same object
+  // from ALL return points. This function must only return THIS variable:
+  gfxMatrix result;
+
+  if (mItems.IsEmpty()) return result;
+
+  result = mItems[0].GetMatrix();
+
+  if (mItems.Length() == 1) return result;
+
+  for (uint32_t i = 1; i < mItems.Length(); ++i) {
+    result.PreMultiply(mItems[i].GetMatrix());
+  }
+
+  return result;
+}
+
+nsresult SVGTransformList::CopyFrom(const SVGTransformList& rhs) {
+  return CopyFrom(rhs.mItems);
+}
+
+nsresult SVGTransformList::CopyFrom(
+    const nsTArray<SVGTransform>& aTransformArray) {
+  if (!mItems.Assign(aTransformArray, fallible)) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+  return NS_OK;
+}
+
+void SVGTransformList::GetValueAsString(nsAString& aValue) const {
+  aValue.Truncate();
+  uint32_t last = mItems.Length() - 1;
+  for (uint32_t i = 0; i < mItems.Length(); ++i) {
+    nsAutoString length;
+    mItems[i].GetValueAsString(length);
+    // We ignore OOM, since it's not useful for us to return an error.
+    aValue.Append(length);
+    if (i != last) {
+      aValue.Append(' ');
+    }
+  }
+}
+
+nsresult SVGTransformList::SetValueFromString(const nsAString& aValue) {
+  SVGTransformListParser parser(aValue);
+  if (!parser.Parse()) {
+    // there was a parse error.
+    return NS_ERROR_DOM_SYNTAX_ERR;
+  }
+
+  return CopyFrom(parser.GetTransformList());
+}
+
+}  // namespace mozilla