Prepare frontend repository for monorepo

This change prepares the frontend Git repository for the monorepo
residing at https://github.com/atlarge-research.com/opendc. To
accomodate for this, we move all files into a frontend subdirectory.

1 files changed, 30 insertions, 0 deletions

diff --git a/frontend/src/components/app/timeline/PlayButtonComponent.js b/frontend/src/components/app/timeline/PlayButtonComponent.js
new file mode 100644
index 00000000..1a9b0ced
--- /dev/null
+++ b/frontend/src/components/app/timeline/PlayButtonComponent.js
@@ -0,0 +1,30 @@
+import React from "react";
+
+const PlayButtonComponent = ({
+  isPlaying,
+  currentTick,
+  lastSimulatedTick,
+  onPlay,
+  onPause
+}) => (
+  <div
+    className="play-btn"
+    onClick={() => {
+      if (isPlaying) {
+        onPause();
+      } else {
+        if (currentTick !== lastSimulatedTick) {
+          onPlay();
+        }
+      }
+    }}
+  >
+    {isPlaying ? (
+      <span className="fa fa-pause" />
+    ) : (
+      <span className="fa fa-play" />
+    )}
+  </div>
+);
+
+export default PlayButtonComponent;