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gaia/tests/jsmarionette/plugins/reflow_helper.js

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+'use strict';
+/* global require, module */
+/*
+ * You need the following pref for this to work.
+ * 'devtools.debugger.forbid-certified-apps': false
+ *
+ * And also the follow settings.
+ * 'devtools.overlay': true
+ * 'hud.reflows': true
+ */
+
+var fs = require('fs');
+var atom = fs.readFileSync('./tests/atoms/reflow.js', {encoding: 'utf-8'});
+
+var ReflowHelper = function(client) {
+  var chrome = client.scope({ context: 'chrome' });
+  chrome.executeScript(atom);
+  client.setContext('content');
+
+  this.startTracking = function(manifestURL) {
+    chrome.executeScript(function(url) {
+      window.MozReflowAtom.startTracking(url);
+    }, [manifestURL]);
+  };
+
+  this.stopTracking = function() {
+    chrome.executeScript(function() {
+      window.MozReflowAtom.stopTracking();
+    });
+  };
+
+  this.getCount = function() {
+    return chrome.executeScript(function() {
+      return window.MozReflowAtom.count;
+    });
+  };
+};
+
+module.exports = ReflowHelper;