openproject/frontend/app/components/wp-buttons/wp-timeline-toggle-button/wp-timeline-toggle-button.directive.html

<button id="{{ ::vm.buttonId }}"
        class="button"
        title="{{ vm.label }}"
        ng-click="vm.performAction()"
        ng-attr-accesskey="{{ ::vm.accessKey }}"
        ng-disabled="vm.disabled"
        ng-class="{ '-active': vm.isActive() }"
        aria-label="{{ vm.label }}">
  <i class="{{ ::vm.iconClass }} button--icon"></i>
  <span class="button--text" ng-bind="::vm.buttonText"></span>
  <span class="badge -secondary">{{ vm.filterCount }}</span>
</button>