feat(Header & Footer): Add header & footer to the dropdown list.

docs/examples/demo-header-and-footer.html

@@ -0,0 +1,49 @@
+<h3>Basic Header and Footer</h3>
+<button class="btn btn-default btn-xs" ng-click="ctrl.enable()">Enable ui-select</button>
+<button class="btn btn-default btn-xs" ng-click="ctrl.disable()">Disable ui-select</button>
+<button class="btn btn-default btn-xs" ng-click="ctrl.clear()">Clear ng-model</button>
+
+<h3>Bootstrap theme <small>(remote data source)</small></h3>
+<p>Selected: {{ctrl.address.selected.formatted_address}}</p>
+<ui-select ng-model="ctrl.address.selected"
+           theme="bootstrap"
+           ng-disabled="ctrl.disabled"
+           reset-search-input="false"
+           style="width: 300px;"
+           title="Choose an address">
+  <ui-select-match placeholder="Enter an address...">{{$select.selected.formatted_address}}</ui-select-match>
+  <ui-select-header>Header text</ui-select-header>
+  <ui-select-choices repeat="address in ctrl.addresses track by $index"
+                     refresh="ctrl.refreshAddresses($select.search)"
+                     refresh-delay="0">
+    <div ng-bind-html="address.formatted_address | highlight: $select.search"></div>
+  </ui-select-choices>
+  <ui-select-footer>Footer text</ui-select-footer>
+</ui-select>
+
+<h3>Select2 theme</h3>
+<p>Selected: {{ctrl.person.selected}}</p>
+<ui-select ng-model="ctrl.person.selected" theme="select2" ng-disabled="ctrl.disabled" style="min-width: 300px;" title="Choose a person">
+  <ui-select-match placeholder="Select a person in the list or search his name/age...">{{$select.selected.name}}</ui-select-match>
+  <ui-select-header>Header text</ui-select-header>
+  <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: $select.search"></span>
+    </small>
+  </ui-select-choices>
+  <ui-select-footer>Footer text</ui-select-footer>
+</ui-select>
+
+<h3>Selectize theme</h3>
+<p>Selected: {{ctrl.country.selected}}</p>
+<ui-select ng-model="ctrl.country.selected" theme="selectize" ng-disabled="ctrl.disabled" style="width: 300px;" title="Choose a country">
+  <ui-select-match placeholder="Select or search a country in the list...">{{$select.selected.name}}</ui-select-match>
+  <ui-select-header>Header text</ui-select-header>
+  <ui-select-choices repeat="country in ctrl.countries | filter: $select.search">
+    <span ng-bind-html="country.name | highlight: $select.search"></span>
+    <small ng-bind-html="country.code | highlight: $select.search"></small>
+  </ui-select-choices>
+  <ui-select-footer>Footer text</ui-select-footer>
+</ui-select>

src/bootstrap/choices.tpl.html

@@ -1,5 +1,4 @@
-<ul class="ui-select-choices ui-select-choices-content ui-select-dropdown dropdown-menu"
-    ng-show="$select.open && $select.items.length > 0">
+<ul class="ui-select-choices ui-select-choices-content">
   <li class="ui-select-choices-group" id="ui-select-choices-{{ $select.generatedId }}" >
     <div class="divider" ng-show="$select.isGrouped && $index > 0"></div>
     <div ng-show="$select.isGrouped" class="ui-select-choices-group-label dropdown-header" ng-bind="$group.name"></div>

src/bootstrap/footer.tpl.html

@@ -0,0 +1 @@
+<div class="ui-select-footer" ng-transclude></div>

src/bootstrap/header.tpl.html

@@ -0,0 +1 @@
+<div class="ui-select-header" ng-transclude></div>

src/bootstrap/select-multiple.tpl.html

@@ -17,6 +17,10 @@
            ng-class="{'spinner': $select.refreshing}"
            ondrop="return false;">
   </div>
-  <div class="ui-select-choices"></div>
+  <div ng-show="$select.open && $select.items.length > 0" class="ui-select-dropdown dropdown-menu">
+    <div class="ui-select-header"></div>
+    <div class="ui-select-choices"></div>
+    <div class="ui-select-footer"></div>
+  </div>
   <div class="ui-select-no-choice"></div>
 </div>

src/bootstrap/select.tpl.html

@@ -10,6 +10,10 @@
          placeholder="{{$select.placeholder}}"
          ng-model="$select.search"
          ng-show="$select.open">
-  <div class="ui-select-choices"></div>
+  <div ng-show="$select.open && $select.items.length > 0" class="ui-select-dropdown dropdown-menu">
+    <div class="ui-select-header"></div>
+    <div class="ui-select-choices"></div>
+    <div class="ui-select-footer"></div>
+  </div>
   <div class="ui-select-no-choice"></div>
 </div>