fix #1505 - The user only can drop if the backlog filters are closed

app/coffee/modules/backlog/main.coffee

@@ -57,6 +57,7 @@ class BacklogController extends mixOf(taiga.Controller, taiga.PageMixin, taiga.F
 
         @scope.sectionName = "Backlog"
         @showTags = false
+        @activeFilters = false
 
         @.initializeEventHandlers()
 
@@ -122,6 +123,9 @@ class BacklogController extends mixOf(taiga.Controller, taiga.PageMixin, taiga.F
             @showTags = !@showTags
             @rs.userstories.storeShowTags(@scope.projectId, @showTags)
 
+    toggleActiveFilters: ->
+        @activeFilters = !@activeFilters
+
     loadProjectStats: ->
         return @rs.projects.stats(@scope.projectId).then (stats) =>
             @scope.stats = stats
@@ -150,7 +154,6 @@ class BacklogController extends mixOf(taiga.Controller, taiga.PageMixin, taiga.F
             return sprints
 
     resetFilters: ->
-        @scope.$apply =>
         selectedTags = _.filter(@scope.filters.tags, "selected")
         selectedStatuses = _.filter(@scope.filters.statuses, "selected")
 
@@ -623,12 +626,15 @@ BacklogDirective = ($repo, $rootscope) ->
         if !sidebar.hasClass("active")
             $ctrl.resetFilters()
 
+        $ctrl.toggleActiveFilters()
+
     ## Filters Link
 
     linkFilters = ($scope, $el, $attrs, $ctrl) ->
         $scope.filtersSearch = {}
         $el.on "click", "#show-filters-button", (event) ->
             event.preventDefault()
+            $scope.$apply ->
                 showHideFilter($scope, $el, $ctrl)
 
     link = ($scope, $el, $attrs, $rootscope) ->

app/coffee/modules/backlog/sortable.coffee

@@ -39,7 +39,7 @@ deleteElement = (el) ->
     el.off()
     el.remove()
 
-BacklogSortableDirective = ($repo, $rs, $rootscope) ->
+BacklogSortableDirective = ($repo, $rs, $rootscope, $tgConfirm) ->
     # Notes about jquery bug:
     # http://stackoverflow.com/questions/5791886/jquery-draggable-shows-
     # helper-in-wrong-place-when-scrolled-down-page
@@ -50,6 +50,9 @@ BacklogSortableDirective = ($repo, $rs, $rootscope) ->
             if not (project.my_permissions.indexOf("modify_us") > -1)
                 return
 
+            filterError = ->
+                $tgConfirm.notify("error", "You can't drop on backlog when filters are open") #TODO: i18n
+
             $el.sortable({
                 connectWith: ".sprint-table"
                 containment: ".wrapper"
@@ -67,9 +70,19 @@ BacklogSortableDirective = ($repo, $rs, $rootscope) ->
                 # position for revert).
                 revert: false
                 cursorAt: {right: 15}
+                stop: () ->
+                    if $el.hasClass("active-filters")
+                        $el.sortable("cancel")
+                        filterError()
             })
 
             $el.on "multiplesortreceive", (event, ui) ->
+                if $el.hasClass("active-filters")
+                    ui.source.sortable("cancel")
+                    filterError()
+
+                    return
+
                 itemUs = ui.item.scope().us
                 itemIndex = ui.item.index()
 
@@ -179,6 +192,7 @@ module.directive("tgBacklogSortable", [
     "$tgRepo",
     "$tgResources",
     "$rootScope",
+    "$tgConfirm",
     BacklogSortableDirective
 ])
 

app/js/jquery-ui.drag-multiple-custom.js

@@ -94,7 +94,8 @@
 
                 $(this.currentContainer.element).trigger('multiplesortreceive', {
                     'item': current,
-                    'items': elms
+                    'items': elms,
+                    'source': this.element
                 });
             } else if (current.hasClass(multipleSortableClass)) {
                 // sort in the same list

app/partials/views/modules/backlog-table.jade

@@ -6,5 +6,5 @@ div.backlog-table-header
             span.header-points Points
             span.icon.icon-arrow-bottom
 
-div.backlog-table-body(tg-backlog-sortable, ng-class="{'show-tags': ctrl.showTags}" )
+div.backlog-table-body(tg-backlog-sortable, ng-class="{'show-tags': ctrl.showTags, 'active-filters': ctrl.activeFilters}" )
     include ../components/backlog-row