[Vis: Default editor] EUIficate Vega options tab

src/legacy/core_plugins/vis_type_vega/public/_vega_editor.scss

@@ -1,41 +1,22 @@
 .visEditor--vega {
   .visEditorSidebar__config {
     padding: 0;
-    // Makes sure the vega options dropdown menu is visible
-    overflow: inherit;
+    position: relative;
   }
 
-  // The following is necessary for the Vega editor to expand to full height of the editor panel
-  .visEditorSidebar__config,
   .visEditorSidebar__options {
-    @include flex-parent(1, 1, auto);
-
-    > * {
-      @include flex-parent(1, 1, auto);
-    }
-  }
-
-  @include euiBreakpoint('xs', 's', 'm') {
-    .visEditor__collapsibleSidebar {
-      flex-grow: 1;
-    }
+    @include euiScrollBar;
+    flex-shrink: 1;
+    overflow-y: auto;
   }
 }
 
-
 .vgaEditor {
-  @include flex-parent(1, 1, auto);
-  position: relative;
-
   @include euiBreakpoint('xs', 's', 'm') {
-    min-height: $euiSize * 15;
+    @include euiScrollBar;
+    max-height: $euiSize * 15;
+    overflow-y: auto;
   }
-
-  position: relative;
-}
-
-.vgaEditor__aceEditor {
-  flex: 1 1 auto;
 }
 
 .vgaEditor__aceEditorActions {

src/legacy/core_plugins/vis_type_vega/public/components/index.ts

@@ -0,0 +1,20 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+export { VegaVisEditor } from './vega_vis_editor';

src/legacy/core_plugins/vis_type_vega/public/components/vega_actions_menu.tsx

@@ -0,0 +1,85 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import React, { useState, useCallback } from 'react';
+import { EuiButtonIcon, EuiContextMenuPanel, EuiContextMenuItem, EuiPopover } from '@elastic/eui';
+import { FormattedMessage } from '@kbn/i18n/react';
+import { i18n } from '@kbn/i18n';
+
+interface VegaActionsMenuProps {
+  formatHJson(): void;
+  formatJson(): void;
+}
+
+function VegaActionsMenu({ formatHJson, formatJson }: VegaActionsMenuProps) {
+  const [isPopoverOpen, setIsPopoverOpen] = useState(false);
+
+  const onButtonClick = useCallback(() => setIsPopoverOpen(isOpen => !isOpen), []);
+  const onHJsonCLick = useCallback(() => {
+    formatHJson();
+    setIsPopoverOpen(false);
+  }, [isPopoverOpen, formatHJson]);
+
+  const onJsonCLick = useCallback(() => {
+    formatJson();
+    setIsPopoverOpen(false);
+  }, [isPopoverOpen, formatJson]);
+
+  const closePopover = useCallback(() => setIsPopoverOpen(false), []);
+
+  const button = (
+    <EuiButtonIcon
+      iconType="wrench"
+      onClick={onButtonClick}
+      aria-label={i18n.translate('visTypeVega.editor.vegaEditorOptionsButtonAriaLabel', {
+        defaultMessage: 'Vega editor options',
+      })}
+    />
+  );
+
+  const items = [
+    <EuiContextMenuItem key="hjson" onClick={onHJsonCLick}>
+      <FormattedMessage
+        id="visTypeVega.editor.reformatAsHJSONButtonLabel"
+        defaultMessage="Reformat as HJSON"
+      />
+    </EuiContextMenuItem>,
+    <EuiContextMenuItem key="json" onClick={onJsonCLick}>
+      <FormattedMessage
+        id="visTypeVega.editor.reformatAsJSONButtonLabel"
+        defaultMessage="Reformat as JSON, delete comments"
+      />
+    </EuiContextMenuItem>,
+  ];
+
+  return (
+    <EuiPopover
+      id="helpMenu"
+      button={button}
+      isOpen={isPopoverOpen}
+      closePopover={closePopover}
+      panelPaddingSize="none"
+      anchorPosition="downLeft"
+    >
+      <EuiContextMenuPanel items={items} />
+    </EuiPopover>
+  );
+}
+
+export { VegaActionsMenu };

src/legacy/core_plugins/vis_type_vega/public/components/vega_help_menu.tsx

@@ -0,0 +1,91 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import React, { useCallback, useState } from 'react';
+import { EuiButtonIcon, EuiContextMenuPanel, EuiContextMenuItem, EuiPopover } from '@elastic/eui';
+import { FormattedMessage } from '@kbn/i18n/react';
+import { i18n } from '@kbn/i18n';
+
+function VegaHelpMenu() {
+  const [isPopoverOpen, setIsPopoverOpen] = useState(false);
+  const onButtonClick = useCallback(() => setIsPopoverOpen(!isPopoverOpen), [isPopoverOpen]);
+
+  const closePopover = useCallback(() => setIsPopoverOpen(false), []);
+
+  const button = (
+    <EuiButtonIcon
+      iconType="questionInCircle"
+      onClick={onButtonClick}
+      aria-label={i18n.translate('visTypeVega.editor.vegaHelpButtonAriaLabel', {
+        defaultMessage: 'Vega help',
+      })}
+    />
+  );
+
+  const items = [
+    <EuiContextMenuItem
+      key="vegaHelp"
+      href="https://www.elastic.co/guide/en/kibana/master/vega-graph.html"
+      target="_blank"
+      onClick={closePopover}
+    >
+      <FormattedMessage
+        id="visTypeVega.editor.vegaHelpLinkText"
+        defaultMessage="Kibana Vega help"
+      />
+    </EuiContextMenuItem>,
+    <EuiContextMenuItem
+      key="vegaLiteDocs"
+      href="https://vega.github.io/vega-lite/docs/"
+      target="_blank"
+      onClick={closePopover}
+    >
+      <FormattedMessage
+        id="visTypeVega.editor.vegaLiteDocumentationLinkText"
+        defaultMessage="Vega-Lite documentation"
+      />
+    </EuiContextMenuItem>,
+    <EuiContextMenuItem
+      key="vegaDoc"
+      href="https://vega.github.io/vega/docs/"
+      target="_blank"
+      onClick={closePopover}
+    >
+      <FormattedMessage
+        id="visTypeVega.editor.vegaDocumentationLinkText"
+        defaultMessage="Vega documentation"
+      />
+    </EuiContextMenuItem>,
+  ];
+
+  return (
+    <EuiPopover
+      id="helpMenu"
+      button={button}
+      isOpen={isPopoverOpen}
+      closePopover={closePopover}
+      panelPaddingSize="none"
+      anchorPosition="downLeft"
+    >
+      <EuiContextMenuPanel items={items} />
+    </EuiPopover>
+  );
+}
+
+export { VegaHelpMenu };

src/legacy/core_plugins/vis_type_vega/public/components/vega_vis_editor.tsx

@@ -0,0 +1,101 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import React, { useCallback } from 'react';
+import { EuiCodeEditor } from '@elastic/eui';
+import compactStringify from 'json-stringify-pretty-compact';
+// @ts-ignore
+import hjson from 'hjson';
+import { i18n } from '@kbn/i18n';
+
+import { toastNotifications } from 'ui/notify';
+import { VisOptionsProps } from 'ui/vis/editors/default';
+import { VisParams } from '../vega_fn';
+import { VegaHelpMenu } from './vega_help_menu';
+import { VegaActionsMenu } from './vega_actions_menu';
+
+const aceOptions = {
+  maxLines: Infinity,
+  highlightActiveLine: false,
+  showPrintMargin: false,
+  tabSize: 2,
+  useSoftTabs: true,
+  wrap: true,
+};
+
+const hjsonStringifyOptions = {
+  bracesSameLine: true,
+  keepWsc: true,
+};
+
+function format(value: string, stringify: typeof compactStringify, options?: any) {
+  try {
+    const spec = hjson.parse(value, { legacyRoot: false, keepWsc: true });
+    return stringify(spec, options);
+  } catch (err) {
+    // This is a common case - user tries to format an invalid HJSON text
+    toastNotifications.addError(err, {
+      title: i18n.translate('visTypeVega.editor.formatError', {
+        defaultMessage: 'Error formatting spec',
+      }),
+    });
+
+    return value;
+  }
+}
+
+function VegaVisEditor({ stateParams, setValue }: VisOptionsProps<VisParams>) {
+  const onChange = useCallback(
+    (value: string) => {
+      setValue('spec', value);
+    },
+    [setValue]
+  );
+
+  const formatJson = useCallback(
+    () => setValue('spec', format(stateParams.spec, compactStringify)),
+    [setValue, stateParams.spec]
+  );
+
+  const formatHJson = useCallback(
+    () => setValue('spec', format(stateParams.spec, hjson.stringify, hjsonStringifyOptions)),
+    [setValue, stateParams.spec]
+  );
+
+  return (
+    <div className="vgaEditor">
+      <EuiCodeEditor
+        data-test-subj="vega-editor"
+        mode="hjson"
+        theme="textmate"
+        width="100%"
+        height="auto"
+        onChange={onChange}
+        value={stateParams.spec}
+        setOptions={aceOptions}
+      />
+      <div className="vgaEditor__aceEditorActions">
+        <VegaHelpMenu />
+        <VegaActionsMenu formatHJson={formatHJson} formatJson={formatJson} />
+      </div>
+    </div>
+  );
+}
+
+export { VegaVisEditor };