1 files changed, 72 insertions, 0 deletions
diff --git a/addons/survey/static/src/js/survey_timer.js b/addons/survey/static/src/js/survey_timer.js
new file mode 100644
index 00000000..2bfd78fe
--- /dev/null
+++ b/addons/survey/static/src/js/survey_timer.js
@@ -0,0 +1,72 @@
+odoo.define('survey.timer', function (require) {
+'use strict';
+
+var publicWidget = require('web.public.widget');
+
+publicWidget.registry.SurveyTimerWidget = publicWidget.Widget.extend({
+    //--------------------------------------------------------------------------
+    // Widget
+    //--------------------------------------------------------------------------
+
+    /**
+     * @override
+     */
+    init: function (parent, params) {
+        this._super.apply(this, arguments);
+        this.timer = params.timer;
+        this.timeLimitMinutes = params.timeLimitMinutes;
+        this.surveyTimerInterval = null;
+    },
+
+
+    /**
+    * Two responsabilities : Validate that time limit is not exceeded and Run timer otherwise.
+    *
+    * @override
+    */
+    start: function () {
+        var self = this;
+        return this._super.apply(this, arguments).then(function () {
+            self.countDownDate = moment.utc(self.timer).add(self.timeLimitMinutes, 'minutes');
+            if (self.timeLimitMinutes <= 0 || self.countDownDate.diff(moment.utc(), 'seconds') < 0) {
+                self.trigger_up('time_up');
+            } else {
+                self._updateTimer();
+                self.surveyTimerInterval = setInterval(self._updateTimer.bind(self), 1000);
+            }
+        });
+    },
+
+    // -------------------------------------------------------------------------
+    // Private
+    // -------------------------------------------------------------------------
+
+    _formatTime: function (time) {
+        return time > 9 ? time : '0' + time;
+    },
+
+    /**
+    * This function is responsible for the visual update of the timer DOM every second.
+    * When the time runs out, it triggers a 'time_up' event to notify the parent widget.
+    *
+    * We use a diff in millis and not a second, that we round to the nearest second.
+    * Indeed, a difference of 999 millis is interpreted as 0 second by moment, which is problematic
+    * for our use case.
+    */
+    _updateTimer: function () {
+        var timeLeft = Math.round(this.countDownDate.diff(moment.utc(), 'milliseconds') / 1000);
+
+        if (timeLeft >= 0) {
+            var timeLeftMinutes = parseInt(timeLeft / 60);
+            var timeLeftSeconds = timeLeft - (timeLeftMinutes * 60);
+            this.$el.text(this._formatTime(timeLeftMinutes) + ':' + this._formatTime(timeLeftSeconds));
+        } else {
+            clearInterval(this.surveyTimerInterval);
+            this.trigger_up('time_up');
+        }
+    },
+});
+
+return publicWidget.registry.SurveyTimerWidget;
+
+});