1 files changed, 52 insertions, 0 deletions
diff --git a/dom/smil/SMILTimeValue.cpp b/dom/smil/SMILTimeValue.cpp
new file mode 100644
index 0000000000..67676a329f
--- /dev/null
+++ b/dom/smil/SMILTimeValue.cpp
@@ -0,0 +1,52 @@
+/* -*- 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 "SMILTimeValue.h"
+#include "nsMathUtils.h"
+
+namespace mozilla {
+
+const SMILTime SMILTimeValue::kUnresolvedMillis =
+    std::numeric_limits<SMILTime>::max();
+
+//----------------------------------------------------------------------
+// SMILTimeValue methods:
+
+static inline int8_t Cmp(int64_t aA, int64_t aB) {
+  return aA == aB ? 0 : (aA > aB ? 1 : -1);
+}
+
+int8_t SMILTimeValue::CompareTo(const SMILTimeValue& aOther) const {
+  int8_t result;
+
+  if (mState == STATE_DEFINITE) {
+    result = (aOther.mState == STATE_DEFINITE)
+                 ? Cmp(mMilliseconds, aOther.mMilliseconds)
+                 : -1;
+  } else if (mState == STATE_INDEFINITE) {
+    if (aOther.mState == STATE_DEFINITE)
+      result = 1;
+    else if (aOther.mState == STATE_INDEFINITE)
+      result = 0;
+    else
+      result = -1;
+  } else {
+    result = (aOther.mState != STATE_UNRESOLVED) ? 1 : 0;
+  }
+
+  return result;
+}
+
+void SMILTimeValue::SetMillis(double aMillis, Rounding aRounding) {
+  mState = STATE_DEFINITE;
+  mMilliseconds = NS_round(aMillis);
+  if (aRounding == Rounding::EnsureNonZero && !mMilliseconds && aMillis) {
+    // Ensure we don't round small values to zero.
+    mMilliseconds = std::copysign(1.0, aMillis);
+  }
+}
+
+}  // namespace mozilla