From 28b8e0b0c88fc60ac6d32322637b86e6d2fecf0d Mon Sep 17 00:00:00 2001
From: Rohan Mitchell <rohan@rohanmitchell.com>
Date: Thu, 9 Jul 2015 12:21:35 +1000
Subject: [PATCH] Update distance matches when filter settings change

---
 .../enterprises_controller.js.coffee          | 21 +++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/app/assets/javascripts/darkswarm/controllers/enterprises_controller.js.coffee b/app/assets/javascripts/darkswarm/controllers/enterprises_controller.js.coffee
index 19f42b5430..3883eca8d5 100644
--- a/app/assets/javascripts/darkswarm/controllers/enterprises_controller.js.coffee
+++ b/app/assets/javascripts/darkswarm/controllers/enterprises_controller.js.coffee
@@ -19,7 +19,7 @@ Darkswarm.controller "EnterprisesCtrl", ($scope, $rootScope, $timeout, Enterpris
     $scope.distanceMatchesShown = false
 
     $timeout ->
-      Enterprises.calculateDistance query, $scope.nameMatchesFiltered[0]
+      Enterprises.calculateDistance query, $scope.firstNameMatch()
       $rootScope.$broadcast 'enterprisesChanged'
 
 
@@ -28,6 +28,16 @@ Darkswarm.controller "EnterprisesCtrl", ($scope, $rootScope, $timeout, Enterpris
     $scope.updateVisibleMatches()
 
 
+  # When filter settings change, this could change which name match is at the top, or even
+  # result in no matches. This affects the reference point that the distance matches are
+  # calculated from, so we need to recalculate distances.
+  $scope.$watch '[activeTaxons, shippingTypes, show_profiles]', ->
+    $timeout ->
+      Enterprises.calculateDistance $scope.query, $scope.firstNameMatch()
+      $rootScope.$broadcast 'enterprisesChanged'
+  , true
+
+
   $rootScope.$on "$locationChangeSuccess", (newRoute, oldRoute) ->
     if HashNavigation.active "hubs"
       $document.scrollTo $("#hubs"), 100, 200
@@ -49,4 +59,11 @@ Darkswarm.controller "EnterprisesCtrl", ($scope, $rootScope, $timeout, Enterpris
 
   $scope.showDistanceMatches = ->
     $scope.distanceMatchesShown = true
-    $scope.updateVisibleMatches()
\ No newline at end of file
+    $scope.updateVisibleMatches()
+
+
+  $scope.firstNameMatch = ->
+    if $scope.nameMatchesFiltered?
+      $scope.nameMatchesFiltered[0]
+    else
+      undefined