[ML] Migrate field-type-icon to EUI/React. (#19159) (#19168)

Migrates the field-type-icon directive to use EUI/React. Instead of the angular/bootstrap tooltip attribute on the directive's tag, there's now an option tooltip-enabled which when true wraps the component inside EuiToolTip.

x-pack/plugins/ml/public/components/field_data_card/field_data_card.html

@@ -1,11 +1,9 @@
 <div class="ml-field-data-card">
   <div class="euiText title-bar" ng-class="card.fieldName===undefined ? 'document_count': card.isUnsupportedType===true ? 'type-other' : card.type">
     <ml-field-type-icon
-        type="card.type"
-        tooltip="{{ card.type }}"
-        tooltip-placement="left"
-        tooltip-append-to-body="true">
-    </ml-field-type-icon>
+      type="card.type"
+      tooltip-enabled="true"
+    />
     <div
       class="field-name"
       tooltip="{{ mlEscape(card.fieldName) || 'document count' }}"

x-pack/plugins/ml/public/components/field_type_icon/__snapshots__/field_type_icon_view.test.js.snap

@@ -0,0 +1,32 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`FieldTypeIcon render component inside tooltip wrapper 1`] = `
+<EuiToolTip
+  content="keyword"
+  position="left"
+>
+  <span>
+    <FieldTypeIconContainer
+      ariaLabel="Aggregatable string field"
+      className="field-type-icon"
+      iconChar="t"
+    />
+  </span>
+</EuiToolTip>
+`;
+
+exports[`FieldTypeIcon render component when type matches a field type 1`] = `
+<FieldTypeIconContainer
+  ariaLabel="Aggregatable string field"
+  className="field-type-icon"
+  iconChar="t"
+/>
+`;
+
+exports[`FieldTypeIcon update component 1`] = `
+<FieldTypeIconContainer
+  ariaLabel="Aggregatable string field"
+  className="field-type-icon"
+  iconChar="t"
+/>
+`;

x-pack/plugins/ml/public/components/field_type_icon/field_type_icon_directive.js

@@ -6,22 +6,38 @@
 
 
 
-import template from './field_type_icon.html';
-import { ML_JOB_FIELD_TYPES } from 'plugins/ml/../common/constants/field_types';
+import React from 'react';
+import ReactDOM from 'react-dom';
+
+import { FieldTypeIcon } from './field_type_icon_view.js';
 
 import { uiModules } from 'ui/modules';
 const module = uiModules.get('apps/ml');
 
 module.directive('mlFieldTypeIcon', function () {
   return {
     restrict: 'E',
-    replace: true,
+    replace: false,
     scope: {
+      tooltipEnabled: '=',
       type: '='
     },
-    template,
-    controller: function ($scope) {
-      $scope.ML_JOB_FIELD_TYPES = ML_JOB_FIELD_TYPES;
+    link: function (scope, element) {
+      scope.$watch('type', updateComponent);
+
+      updateComponent();
+
+      function updateComponent() {
+        const props = {
+          tooltipEnabled: scope.tooltipEnabled,
+          type: scope.type
+        };
+
+        ReactDOM.render(
+          React.createElement(FieldTypeIcon, props),
+          element[0]
+        );
+      }
     }
   };
 });

x-pack/plugins/ml/public/components/field_type_icon/field_type_icon_view.js

@@ -0,0 +1,97 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import PropTypes from 'prop-types';
+import React from 'react';
+
+import { EuiToolTip } from '@elastic/eui';
+
+// don't use something like plugins/ml/../common
+// because it won't work with the jest tests
+import { ML_JOB_FIELD_TYPES } from '../../../common/constants/field_types';
+
+export function FieldTypeIcon({ tooltipEnabled = false, type }) {
+  let ariaLabel = '';
+  let iconClass = '';
+  let iconChar = '';
+
+  switch (type) {
+    case ML_JOB_FIELD_TYPES.BOOLEAN:
+      ariaLabel = 'Boolean field';
+      iconClass = 'fa-adjust';
+      break;
+    case ML_JOB_FIELD_TYPES.DATE:
+      ariaLabel = 'Date field';
+      iconClass = 'fa-clock-o';
+      break;
+    case ML_JOB_FIELD_TYPES.NUMBER:
+      ariaLabel = 'Metric field';
+      iconChar = '#';
+      break;
+    case ML_JOB_FIELD_TYPES.GEO_POINT:
+      ariaLabel = 'Geo-point field';
+      iconClass = 'fa-globe';
+      break;
+    case ML_JOB_FIELD_TYPES.KEYWORD:
+      ariaLabel = 'Aggregatable string field';
+      iconChar = 't';
+      break;
+    case ML_JOB_FIELD_TYPES.TEXT:
+      ariaLabel = 'String field';
+      iconClass = 'fa-file-text-o';
+      break;
+    case ML_JOB_FIELD_TYPES.IP:
+      ariaLabel = 'IP address field';
+      iconClass = 'fa-laptop';
+      break;
+    default:
+      // if type doesn't match one of ML_JOB_FIELD_TYPES
+      // don't render the component at all
+      return null;
+  }
+
+  let className = 'field-type-icon';
+  if (iconClass !== '') {
+    className += ' kuiIcon ' + iconClass;
+  }
+
+  const containerProps = {
+    ariaLabel,
+    className,
+    iconChar
+  };
+
+  if (tooltipEnabled === true) {
+    // wrap the inner component inside <span> because EuiToolTip doesn't seem
+    // to support having another component directly inside the tooltip anchor
+    // see https://github.com/elastic/eui/issues/839
+    return (
+      <EuiToolTip position="left" content={type}>
+        <span><FieldTypeIconContainer {...containerProps} /></span>
+      </EuiToolTip>
+    );
+  }
+
+  return <FieldTypeIconContainer {...containerProps} />;
+}
+FieldTypeIcon.propTypes = {
+  tooltipEnabled: PropTypes.bool,
+  type: PropTypes.string
+};
+
+function FieldTypeIconContainer({ ariaLabel, className, iconChar }) {
+  return (
+    <span className="field-type-icon-container">
+      {(iconChar === '') ? (
+        <span aria-label={ariaLabel} className={className} />
+      ) : (
+        <span aria-label={ariaLabel} className={className}>
+          <strong aria-hidden="true">{iconChar}</strong>
+        </span>
+      )}
+    </span>
+  );
+}

x-pack/plugins/ml/public/components/field_type_icon/field_type_icon_view.test.js

@@ -0,0 +1,41 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { shallow } from 'enzyme';
+import React from 'react';
+
+import { FieldTypeIcon } from './field_type_icon_view';
+
+describe('FieldTypeIcon', () => {
+
+  test(`don't render component when type is undefined`, () => {
+    const wrapper = shallow(<FieldTypeIcon />);
+    expect(wrapper.isEmptyRender()).toBeTruthy();
+  });
+
+  test(`don't render component when type doesn't match a field type`, () => {
+    const wrapper = shallow(<FieldTypeIcon type="foo" />);
+    expect(wrapper.isEmptyRender()).toBeTruthy();
+  });
+
+  test(`render component when type matches a field type`, () => {
+    const wrapper = shallow(<FieldTypeIcon type="keyword" />);
+    expect(wrapper).toMatchSnapshot();
+  });
+
+  test(`render component inside tooltip wrapper`, () => {
+    const wrapper = shallow(<FieldTypeIcon type="keyword" tooltipEnabled={true} />);
+    expect(wrapper).toMatchSnapshot();
+  });
+
+  test(`update component`, () => {
+    const wrapper = shallow(<FieldTypeIcon />);
+    expect(wrapper.isEmptyRender()).toBeTruthy();
+    wrapper.setProps({ type: 'keyword' });
+    expect(wrapper).toMatchSnapshot();
+  });
+
+});