Ask user to confirm cancellation of order

app/assets/javascripts/darkswarm/directives/confirm_link_click.js.coffee

@@ -0,0 +1,9 @@
+Darkswarm.directive "confirmLinkClick", ($window) ->
+  restrict: 'A'
+  scope:
+    confirmMsg: '@confirmLinkClick'
+  link: (scope, elem, attr) ->
+    elem.bind 'click', (event) ->
+      unless confirm(scope.confirmMsg)
+        event.preventDefault()
+        event.stopPropagation()

app/views/spree/orders/form/_update_buttons.html.haml

@@ -14,7 +14,7 @@
   - if order.changes_allowed?
     .columns.show-for-medium-up.medium-3  
     .columns.small-12.medium-3
-      = link_to spree.cancel_order_path(@order), method: :put, :class => "button secondary expand" do
+      = link_to spree.cancel_order_path(@order), method: :put, :class => "button secondary expand", "confirm-link-click" => t('orders_confirm_cancel') do
         %i.ofn-i_009-close
         = t(:cancel_order)
     .columns.small-12.medium-3

app/views/spree/users/_open_orders.html.haml

@@ -20,4 +20,4 @@
           %td.order6.text-right.show-for-large-up.brick
             %a{"ng-href" => "{{::order.path}}" }= t('.edit')
           %td.order7.text-right
-            = link_to t('.cancel'), "", method: :put, "ng-href" => "{{::order.cancel_path}}"
+            = link_to t('.cancel'), "", method: :put, "ng-href" => "{{::order.cancel_path}}", "confirm-link-click" => t('orders_confirm_cancel')

config/locales/en.yml

@@ -1066,6 +1066,7 @@ See the %{link} to find out more about %{sitename}'s features and to start using
     other: "%{count} additional items already confirmed for this order cycle"
   orders_bought_edit_button: Edit confirmed items
   orders_bought_already_confirmed: "* already confirmed"
+  orders_confirm_cancel: Are you sure you want to cancel this order?
 
   products_cart_distributor_choice: "Distributor for your order:"
   products_cart_distributor_change: "Your distributor for this order will be changed to %{name} if you add this product to your cart."