1 files changed, 40 insertions, 0 deletions
diff --git a/devtools/client/inspector/animation/components/TickLines.js b/devtools/client/inspector/animation/components/TickLines.js
new file mode 100644
index 0000000000..d3cbdead98
--- /dev/null
+++ b/devtools/client/inspector/animation/components/TickLines.js
@@ -0,0 +1,40 @@
+/* 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/. */
+
+"use strict";
+
+const {
+  PureComponent,
+} = require("resource://devtools/client/shared/vendor/react.js");
+const PropTypes = require("resource://devtools/client/shared/vendor/react-prop-types.js");
+const dom = require("resource://devtools/client/shared/vendor/react-dom-factories.js");
+
+/**
+ * This component is intended to show the tick line as the background.
+ */
+class TickLines extends PureComponent {
+  static get propTypes() {
+    return {
+      ticks: PropTypes.array.isRequired,
+    };
+  }
+
+  render() {
+    const { ticks } = this.props;
+
+    return dom.div(
+      {
+        className: "tick-lines",
+      },
+      ticks.map(tick =>
+        dom.div({
+          className: "tick-line",
+          style: { marginInlineStart: `${tick.position}%` },
+        })
+      )
+    );
+  }
+}
+
+module.exports = TickLines;