From 448734ceb99340fca5bc4a20d348610f7e06e5ca Mon Sep 17 00:00:00 2001
From: jos <wjosdejong@gmail.com>
Date: Tue, 23 Feb 2016 11:10:34 +0100
Subject: [PATCH] Fixed #1683: implemented `currentTimeTick` event

---
 HISTORY.md                            | 1 +
 docs/graph2d/index.html               | 6 ++++++
 docs/timeline/index.html              | 5 +++++
 lib/timeline/component/CurrentTime.js | 1 +
 test/timeline.html                    | 4 ++++
 5 files changed, 17 insertions(+)

diff --git a/HISTORY.md b/HISTORY.md
index 786e299e..cffe8437 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -6,6 +6,7 @@ http://visjs.org
 
 ### Timeline
 
+- Implemented `currentTimeTick` event (see #1683).
 - Fixed #1630: method `getItemRange` missing in docs.
 
 ### Graph2d
diff --git a/docs/graph2d/index.html b/docs/graph2d/index.html
index e6412f7b..ed062202 100644
--- a/docs/graph2d/index.html
+++ b/docs/graph2d/index.html
@@ -1304,6 +1304,12 @@ Graph2d.off('rangechanged', onChange);
             <th>Properties</th>
             <th>Description</th>
         </tr>
+
+        <tr>
+            <td>currentTimeTick</td>
+            <td>Fired when the current time bar redraws. The rate depends on the zoom level.</td>
+        </tr>
+
         <tr>
             <td>click</td>
             <td>
diff --git a/docs/timeline/index.html b/docs/timeline/index.html
index 9d41a32b..f0b4d742 100644
--- a/docs/timeline/index.html
+++ b/docs/timeline/index.html
@@ -1348,6 +1348,11 @@ timeline.off('select', onSelect);
       <th>Description</th>
     </tr>
 
+    <tr>
+      <td>currentTimeTick</td>
+      <td>Fired when the current time bar redraws. The rate depends on the zoom level.</td>
+    </tr>
+
     <tr>
       <td>click</td>
       <td>
diff --git a/lib/timeline/component/CurrentTime.js b/lib/timeline/component/CurrentTime.js
index d23ba377..ee1c7148 100644
--- a/lib/timeline/component/CurrentTime.js
+++ b/lib/timeline/component/CurrentTime.js
@@ -129,6 +129,7 @@ CurrentTime.prototype.start = function() {
     if (interval > 1000) interval = 1000;
 
     me.redraw();
+    me.body.emitter.emit('currentTimeTick');
 
     // start a renderTimer to adjust for the new time
     me.currentTimeTimer = setTimeout(update, interval);
diff --git a/test/timeline.html b/test/timeline.html
index 9cc1f384..7887b340 100644
--- a/test/timeline.html
+++ b/test/timeline.html
@@ -216,6 +216,10 @@
   items.on('update', console.log.bind(console));
   items.on('remove', console.log.bind(console));
 
+  timeline.on('currentTimeTick', function () {
+    console.log('currentTimeTick')
+  });
+
 
 //  timeline.setOptions({timeAxis:{scale: 'minute', step: 5}})
 </script>