1 files changed, 84 insertions, 0 deletions
diff --git a/devtools/client/inspector/animation/components/graph/EffectTimingPath.js b/devtools/client/inspector/animation/components/graph/EffectTimingPath.js
new file mode 100644
index 0000000000..4a984bc61c
--- /dev/null
+++ b/devtools/client/inspector/animation/components/graph/EffectTimingPath.js
@@ -0,0 +1,84 @@
+/* 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 PropTypes = require("resource://devtools/client/shared/vendor/react-prop-types.js");
+const dom = require("resource://devtools/client/shared/vendor/react-dom-factories.js");
+
+const {
+  createSummaryGraphPathStringFunction,
+  SummaryGraphHelper,
+} = require("resource://devtools/client/inspector/animation/utils/graph-helper.js");
+const TimingPath = require("resource://devtools/client/inspector/animation/components/graph/TimingPath.js");
+
+class EffectTimingPath extends TimingPath {
+  static get propTypes() {
+    return {
+      animation: PropTypes.object.isRequired,
+      durationPerPixel: PropTypes.number.isRequired,
+      offset: PropTypes.number.isRequired,
+      simulateAnimation: PropTypes.func.isRequired,
+      totalDuration: PropTypes.number.isRequired,
+    };
+  }
+
+  render() {
+    const {
+      animation,
+      durationPerPixel,
+      offset,
+      simulateAnimation,
+      totalDuration,
+    } = this.props;
+
+    const { state } = animation;
+    const effectTiming = Object.assign({}, state, {
+      iterations: state.iterationCount ? state.iterationCount : Infinity,
+    });
+
+    const simulatedAnimation = simulateAnimation(null, effectTiming, false);
+
+    if (!simulatedAnimation) {
+      return null;
+    }
+
+    const endTime = simulatedAnimation.effect.getComputedTiming().endTime;
+
+    const getValueFunc = time => {
+      if (time < 0) {
+        return 0;
+      }
+
+      simulatedAnimation.currentTime = time < endTime ? time : endTime;
+      return Math.max(
+        simulatedAnimation.effect.getComputedTiming().progress,
+        0
+      );
+    };
+
+    const toPathStringFunc = createSummaryGraphPathStringFunction(
+      endTime,
+      state.playbackRate
+    );
+    const helper = new SummaryGraphHelper(
+      state,
+      null,
+      totalDuration,
+      durationPerPixel,
+      getValueFunc,
+      toPathStringFunc
+    );
+
+    return dom.g(
+      {
+        className: "animation-effect-timing-path",
+        transform: `translate(${offset})`,
+      },
+      super.renderGraph(state, helper)
+    );
+  }
+}
+
+module.exports = EffectTimingPath;