1 files changed, 32 insertions, 0 deletions
diff --git a/devtools/client/memory/components/tree-map/start.js b/devtools/client/memory/components/tree-map/start.js
new file mode 100644
index 000000000..9cebe2a9d
--- /dev/null
+++ b/devtools/client/memory/components/tree-map/start.js
@@ -0,0 +1,32 @@
+/* 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 { setupDraw } = require("./draw");
+const DragZoom = require("./drag-zoom");
+const CanvasUtils = require("./canvas-utils");
+
+/**
+ * Start the tree map visualization
+ *
+ * @param  {HTMLDivElement} container
+ * @param  {Object} report
+ *                  the report from a census
+ * @param  {Number} debounceRate
+ */
+module.exports = function startVisualization(parentEl, report,
+                                              debounceRate = 60) {
+  let window = parentEl.ownerDocument.defaultView;
+  let canvases = new CanvasUtils(parentEl, debounceRate);
+  let dragZoom = new DragZoom(canvases.container, debounceRate,
+                              window.requestAnimationFrame);
+
+  setupDraw(report, canvases, dragZoom);
+
+  return function stopVisualization() {
+    canvases.destroy();
+    dragZoom.destroy();
+  };
+};