ui-select/docs/examples/demo-focus.html

  <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>

  <h1>Focus</h1>
  <p>Regular uiSelect</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-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>

  <h3>Autofocus</h3>
  <p>Use the <code>autofocus</code> attribute to automatically focus ui-select when the page is loaded</p>
  <ui-select autofocus 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-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>

  <h3>Focus on Demand</h3>
  <p>Use the <code>focus-on</code> attribute, defining a scope event name (<code>UiSelectDemo1</code>) to listen for, to manually trigger focussing of ui-select.</p>
  <ui-select focus-on="UiSelectDemo1" 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-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: $select.search"></span>
      </small>
    </ui-select-choices>
  </ui-select>
  <p></p>
  <p>
    <button class="btn btn-default" ng-click="ctrl.setInputFocus()">Set Focus</button>
    (<code>$scope.$broadcast('UiSelectDemo1');</code>)
  </p>