feat(removeSelected): Implement removeSelected property for multiple selects

Implement remove-selected="false" for multiple selects. This will disable a choice
in the dropdown of a multiple-select element instead of removing it.

Author: dondi

docs/assets/demo.js

@@ -175,6 +175,7 @@ app.controller('DemoCtrl', function ($scope, $http, $timeout, $interval) {
   vm.multipleDemo.selectedPeople2 = vm.multipleDemo.selectedPeople;
   vm.multipleDemo.selectedPeopleWithGroupBy = [vm.people[8], vm.people[6]];
   vm.multipleDemo.selectedPeopleSimple = ['samantha@email.com','wladimir@email.com'];
+  vm.multipleDemo.removeSelectIsFalse = [vm.people[2], vm.people[0]];
 
   vm.appendToBodyDemo = {
     remainingToggleTime: 0,

docs/examples/demo-multiple-selection.html

@@ -72,4 +72,18 @@ <h3>Array of objects (with groupBy)</h3>
   </ui-select>
   <p>Selected: {{multipleDemo.selectedPeopleWithGroupBy}}</p>
 
+  <hr>
+  <h3>Disabling instead of removing selected items</h3>
+  <ui-select multiple ng-model="ctrl.multipleDemo.removeSelectIsFalse" theme="bootstrap" ng-disabled="ctrl.disabled" close-on-select="false" style="width: 800px;" title="Choose a person" remove-selected="false">
+    <ui-select-match placeholder="Select person...">{{$item.name}} &lt;{{$item.email}}&gt;</ui-select-match>
+    <ui-select-choices repeat="person in ctrl.people | propsFilter: {name: $select.search, age: $select.search}">
+      <div ng-bind-html="person.name | highlight: $select.search"></div>
+      <small>
+        email: {{person.email}}
+        age: <span ng-bind-html="''+person.age | highlight: $select.search"></span>
+      </small>
+    </ui-select-choices>
+  </ui-select>
+  <p>Selected: {{multipleDemo.removeSelectIsFalse}}</p>
+
   <div style="height:500px"></div>

src/common.js

@@ -101,6 +101,7 @@ var uis = angular.module('ui.select', [])
   closeOnSelect: true,
   skipFocusser: false,
   dropdownPosition: 'auto',
+  removeSelected: true,
   generateId: function() {
     return latestId++;
   },

src/uiSelectController.js

@@ -18,7 +18,7 @@ uis.controller('uiSelectCtrl',
   ctrl.refreshDelay = uiSelectConfig.refreshDelay;
   ctrl.paste = uiSelectConfig.paste;
 
-  ctrl.removeSelected = false; //If selected item(s) should be removed from dropdown list
+  ctrl.removeSelected = uiSelectConfig.removeSelected; //If selected item(s) should be removed from dropdown list
   ctrl.closeOnSelect = true; //Initialized inside uiSelect directive link function
   ctrl.skipFocusser = false; //Set to true to avoid returning focus to ctrl when item is selected
   ctrl.search = EMPTY_SEARCH;
@@ -240,9 +240,9 @@ uis.controller('uiSelectCtrl',
       }else{
         if ( data !== undefined ) {
           var filteredItems = data.filter(function(i) {
-            return selectedItems.every(function(selectedItem) {
+            return angular.isArray(selectedItems) ? selectedItems.every(function(selectedItem) {
               return !angular.equals(i, selectedItem);
-            });
+            }) : !angular.equals(i, selectedItems);
           });
           ctrl.setItemsFn(filteredItems);
         }
@@ -317,6 +317,11 @@ uis.controller('uiSelectCtrl',
     return isActive;
   };
 
+  var _isItemSelected = function (item) {
+    return (ctrl.selected && angular.isArray(ctrl.selected) &&
+        ctrl.selected.filter(function (selection) { return angular.equals(selection, item); }).length > 0);
+  };
+
   ctrl.isDisabled = function(itemScope) {
 
     if (!ctrl.open) return;
@@ -325,9 +330,9 @@ uis.controller('uiSelectCtrl',
     var isDisabled = false;
     var item;
 
-    if (itemIndex >= 0 && !angular.isUndefined(ctrl.disableChoiceExpression)) {
+    if (itemIndex >= 0 && (!angular.isUndefined(ctrl.disableChoiceExpression) || ctrl.multiple)) {
       item = ctrl.items[itemIndex];
-      isDisabled = !!(itemScope.$eval(ctrl.disableChoiceExpression)); // force the boolean value
+      isDisabled = !!(itemScope.$eval(ctrl.disableChoiceExpression)) || _isItemSelected(item); // force the boolean value
       item._uiSelectChoiceDisabled = isDisabled; // store this for later reference
     }
 
@@ -375,7 +380,7 @@ uis.controller('uiSelectCtrl',
             }
           }
           // search ctrl.selected for dupes potentially caused by tagging and return early if found
-          if ( ctrl.selected && angular.isArray(ctrl.selected) && ctrl.selected.filter( function (selection) { return angular.equals(selection, item); }).length > 0 ) {
+          if (_isItemSelected(item)) {
             ctrl.close(skipFocusser);
             return;
           }

src/uiSelectDirective.js

@@ -87,6 +87,11 @@ uis.directive('uiSelect',
             $select.sortable = sortable !== undefined ? sortable : uiSelectConfig.sortable;
         });
 
+        scope.$watch('removeSelected', function() {
+            var removeSelected = scope.$eval(attrs.removeSelected);
+            $select.removeSelected = removeSelected !== undefined ? removeSelected : uiSelectConfig.removeSelected;
+        });
+
         attrs.$observe('disabled', function() {
           // No need to use $eval() (thanks to ng-disabled) since we already get a boolean instead of a string
           $select.disabled = attrs.disabled !== undefined ? attrs.disabled : false;

src/uiSelectMultipleDirective.js

@@ -76,7 +76,6 @@ uis.directive('uiSelectMultiple', ['uiSelectMinErr','$timeout', function(uiSelec
       //$select.selected = raw selected objects (ignoring any property binding)
 
       $select.multiple = true;
-      $select.removeSelected = true;
 
       //Input that will handle focus
       $select.focusInput = $select.searchInput;

test/select.spec.js

@@ -1427,6 +1427,56 @@ describe('ui-select tests', function() {
     expect($(el).scope().$select.selected).toEqual(['idontexist']);
   });
 
+  it('should remove a choice when remove-selected is not given (default is true)', function () {
+
+    var el = compileTemplate(
+      '<ui-select multiple ng-model="selection.selected"> \
+        <ui-select-match placeholder="Pick one...">{{$select.selected.name}}</ui-select-match> \
+        <ui-select-choices repeat="person in people | filter: $select.search"> \
+          <div class="person-name" ng-bind-html="person.name" | highlight: $select.search"></div> \
+          <div ng-bind-html="person.email | highlight: $select.search"></div> \
+        </ui-select-choices> \
+      </ui-select>'
+    );
+
+    clickItem(el, 'Samantha');
+    clickItem(el, 'Adrian');
+
+    openDropdown(el);
+
+    var choicesEls = $(el).find('.ui-select-choices-row');
+    expect(choicesEls.length).toEqual(6);
+
+    ['Adam', 'Amalie', 'Estefanía', 'Wladimir', 'Nicole', 'Natasha'].forEach(function (name, index) {
+      expect($(choicesEls[index]).hasClass('disabled')).toBeFalsy();
+      expect($(choicesEls[index]).find('.person-name').text()).toEqual(name);
+    });
+  });
+
+  it('should disable a choice instead of removing it when remove-selected is false', function () {
+
+    var el = compileTemplate(
+      '<ui-select multiple remove-selected="false" ng-model="selection.selected"> \
+        <ui-select-match placeholder="Pick one...">{{$select.selected.name}}</ui-select-match> \
+        <ui-select-choices repeat="person in people | filter: $select.search"> \
+          <div ng-bind-html="person.name" | highlight: $select.search"></div> \
+          <div ng-bind-html="person.email | highlight: $select.search"></div> \
+        </ui-select-choices> \
+      </ui-select>'
+    );
+
+    clickItem(el, 'Samantha');
+    clickItem(el, 'Adrian');
+
+    openDropdown(el);
+
+    var choicesEls = $(el).find('.ui-select-choices-row');
+    expect(choicesEls.length).toEqual(8);
+    [false, false, false, true /* Adrian */, false, true /* Samantha */, false, false].forEach(function (bool, index) {
+      expect($(choicesEls[index]).hasClass('disabled')).toEqual(bool);
+    });
+  });
+
   it('should append/transclude content (with correct scope) that users add at <match> tag', function () {
 
     var el = compileTemplate(