From 6b7f45b09cbe80017355f83e4e33ecf392e4e6a6 Mon Sep 17 00:00:00 2001
From: Oliver Salzburg <oliver.salzburg@gmail.com>
Date: Mon, 22 Jan 2018 20:40:25 +0100
Subject: [PATCH] fix(tooltip): changing direction causes invalid position

Providing the initial origin through the `panelClass` of the panel is not the right approach. `mdPanel` remembers the original panel configuration and the provided `panelClass` and will restore it when the element is reused. This results in the new origin and the default (bottom) origin style to be placed on the element.

Fixes #10405
---
 src/components/tooltip/tooltip.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/components/tooltip/tooltip.js b/src/components/tooltip/tooltip.js
index c69201ee5e..20052bc454 100644
--- a/src/components/tooltip/tooltip.js
+++ b/src/components/tooltip/tooltip.js
@@ -387,11 +387,14 @@ function MdTooltipDirective($timeout, $window, $$rAF, $document, $interpolate,
           attachTo: attachTo,
           contentElement: element,
           propagateContainerEvents: true,
-          panelClass: 'md-tooltip ' + origin,
+          panelClass: 'md-tooltip',
           animation: panelAnimation,
           position: panelPosition,
           zIndex: scope.mdZIndex,
-          focusOnOpen: false
+          focusOnOpen: false,
+          onDomAdded: function() {
+            panelRef.panelEl.addClass(origin);
+          }
         };
 
         panelRef = $mdPanel.create(panelConfig);