1 files changed, 68 insertions, 0 deletions
diff --git a/dom/animation/KeyframeEffectParams.h b/dom/animation/KeyframeEffectParams.h
new file mode 100644
index 000000000..92a284eae
--- /dev/null
+++ b/dom/animation/KeyframeEffectParams.h
@@ -0,0 +1,68 @@
+/* -*- 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/. */
+
+#ifndef mozilla_KeyframeEffectParams_h
+#define mozilla_KeyframeEffectParams_h
+
+#include "nsCSSProps.h"
+#include "nsString.h"
+// X11 has a #define for None
+#ifdef None
+#undef None
+#endif
+#include "mozilla/dom/KeyframeEffectBinding.h" // IterationCompositeOperation
+
+namespace mozilla {
+
+class ErrorResult;
+
+enum class SpacingMode
+{
+  distribute,
+  paced
+};
+
+struct KeyframeEffectParams
+{
+  void GetSpacingAsString(nsAString& aSpacing) const
+  {
+    if (mSpacingMode == SpacingMode::distribute) {
+      aSpacing.AssignLiteral("distribute");
+    } else {
+      aSpacing.AssignLiteral("paced(");
+      aSpacing.AppendASCII(nsCSSProps::GetStringValue(mPacedProperty).get());
+      aSpacing.AppendLiteral(")");
+    }
+  }
+
+  /**
+   * Parse spacing string.
+   *
+   * @param aSpacing The input spacing string.
+   * @param [out] aSpacingMode The parsed spacing mode.
+   * @param [out] aPacedProperty The parsed CSS property if using paced spacing.
+   * @param [out] aInvalidPacedProperty A string that, if we parsed a string of
+   *                                    the form 'paced(<ident>)' where <ident>
+   *                                    is not a recognized animatable property,
+   *                                    will be set to <ident>.
+   * @param [out] aRv The error result.
+   */
+  static void ParseSpacing(const nsAString& aSpacing,
+                           SpacingMode& aSpacingMode,
+                           nsCSSPropertyID& aPacedProperty,
+                           nsAString& aInvalidPacedProperty,
+                           ErrorResult& aRv);
+
+  dom::IterationCompositeOperation mIterationComposite =
+    dom::IterationCompositeOperation::Replace;
+  // FIXME: Bug 1216844: Add CompositeOperation
+  SpacingMode mSpacingMode = SpacingMode::distribute;
+  nsCSSPropertyID mPacedProperty = eCSSProperty_UNKNOWN;
+};
+
+} // namespace mozilla
+
+#endif // mozilla_KeyframeEffectParams_h