[Logs UI] Make column configurations reorderable

x-pack/legacy/common/eui_draggable/index.d.ts

@@ -0,0 +1,17 @@
+/*
+ * 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 React from 'react';
+import { EuiDraggable, EuiDragDropContext } from '@elastic/eui';
+
+type PropsOf<T> = T extends React.ComponentType<infer ComponentProps> ? ComponentProps : never;
+type FirstArgumentOf<Func> = Func extends ((arg1: infer FirstArgument, ...rest: any[]) => any)
+  ? FirstArgument
+  : never;
+export type DragHandleProps = FirstArgumentOf<
+  Exclude<PropsOf<typeof EuiDraggable>['children'], React.ReactElement>
+>['dragHandleProps'];
+export type DropResult = FirstArgumentOf<FirstArgumentOf<typeof EuiDragDropContext>['onDragEnd']>;

x-pack/legacy/plugins/infra/public/components/source_configuration/log_columns_configuration_form_state.tsx

@@ -106,6 +106,20 @@ export const useLogColumnsConfigurationFormState = ({
     [formState.logColumns]
   );
 
+  const moveLogColumn = useCallback(
+    (sourceIndex, destinationIndex) => {
+      if (destinationIndex >= 0 && sourceIndex < formState.logColumns.length - 1) {
+        const newLogColumns = [...formState.logColumns];
+        newLogColumns.splice(destinationIndex, 0, newLogColumns.splice(sourceIndex, 1)[0]);
+        setFormStateChanges(changes => ({
+          ...changes,
+          logColumns: newLogColumns,
+        }));
+      }
+    },
+    [formState.logColumns]
+  );
+
   const errors = useMemo(
     () =>
       logColumnConfigurationProps.length <= 0
@@ -125,6 +139,7 @@ export const useLogColumnsConfigurationFormState = ({
 
   return {
     addLogColumn,
+    moveLogColumn,
     errors,
     logColumnConfigurationProps,
     formState,

x-pack/legacy/plugins/infra/public/components/source_configuration/log_columns_configuration_panel.tsx

@@ -14,9 +14,14 @@ import {
   EuiTitle,
   EuiFlexGroup,
   EuiFlexItem,
+  EuiDragDropContext,
+  EuiDraggable,
+  EuiDroppable,
+  EuiIcon,
 } from '@elastic/eui';
 import { FormattedMessage, injectI18n } from '@kbn/i18n/react';
-import React from 'react';
+import React, { useCallback } from 'react';
+import { DragHandleProps, DropResult } from '../../../../../common/eui_draggable';
 
 import { AddLogColumnButtonAndPopover } from './add_log_column_popover';
 import {
@@ -30,70 +35,95 @@ interface LogColumnsConfigurationPanelProps {
   isLoading: boolean;
   logColumnConfiguration: LogColumnConfigurationProps[];
   addLogColumn: (logColumn: LogColumnConfiguration) => void;
+  moveLogColumn: (sourceIndex: number, destinationIndex: number) => void;
 }
 
 export const LogColumnsConfigurationPanel: React.FunctionComponent<
   LogColumnsConfigurationPanelProps
-> = ({ addLogColumn, availableFields, isLoading, logColumnConfiguration }) => (
-  <EuiForm>
-    <EuiFlexGroup>
-      <EuiFlexItem>
-        <EuiTitle size="s" data-test-subj="sourceConfigurationLogColumnsSectionTitle">
-          <h3>
-            <FormattedMessage
-              id="xpack.infra.sourceConfiguration.logColumnsSectionTitle"
-              defaultMessage="Columns"
-            />
-          </h3>
-        </EuiTitle>
-      </EuiFlexItem>
-      <EuiFlexItem grow={false}>
-        <AddLogColumnButtonAndPopover
-          addLogColumn={addLogColumn}
-          availableFields={availableFields}
-          isDisabled={isLoading}
-        />
-      </EuiFlexItem>
-    </EuiFlexGroup>
-    {logColumnConfiguration.length > 0 ? (
-      logColumnConfiguration.map((column, index) => (
-        <LogColumnConfigurationPanel
-          logColumnConfigurationProps={column}
-          key={`logColumnConfigurationPanel-${index}`}
-        />
-      ))
-    ) : (
-      <LogColumnConfigurationEmptyPrompt />
-    )}
-  </EuiForm>
-);
+> = ({ addLogColumn, moveLogColumn, availableFields, isLoading, logColumnConfiguration }) => {
+  const onDragEnd = useCallback(
+    ({ source, destination }: DropResult) =>
+      destination && moveLogColumn(source.index, destination.index),
+    []
+  );
+
+  return (
+    <EuiForm>
+      <EuiFlexGroup>
+        <EuiFlexItem>
+          <EuiTitle size="s" data-test-subj="sourceConfigurationLogColumnsSectionTitle">
+            <h3>
+              <FormattedMessage
+                id="xpack.infra.sourceConfiguration.logColumnsSectionTitle"
+                defaultMessage="Columns"
+              />
+            </h3>
+          </EuiTitle>
+        </EuiFlexItem>
+        <EuiFlexItem grow={false}>
+          <AddLogColumnButtonAndPopover
+            addLogColumn={addLogColumn}
+            availableFields={availableFields}
+            isDisabled={isLoading}
+          />
+        </EuiFlexItem>
+      </EuiFlexGroup>
+      {logColumnConfiguration.length > 0 ? (
+        <EuiDragDropContext onDragEnd={onDragEnd}>
+          <EuiDroppable droppableId="COLUMN_CONFIG_DROPPABLE_AREA">
+            <>
+              {/* Fragment here necessary for typechecking */}
+              {logColumnConfiguration.map((column, index) => (
+                <EuiDraggable
+                  key={`logColumnConfigurationPanel-${column.logColumnConfiguration.id}`}
+                  index={index}
+                  draggableId={column.logColumnConfiguration.id}
+                  customDragHandle
+                >
+                  {provided => (
+                    <LogColumnConfigurationPanel
+                      dragHandleProps={provided.dragHandleProps}
+                      logColumnConfigurationProps={column}
+                    />
+                  )}
+                </EuiDraggable>
+              ))}
+            </>
+          </EuiDroppable>
+        </EuiDragDropContext>
+      ) : (
+        <LogColumnConfigurationEmptyPrompt />
+      )}
+    </EuiForm>
+  );
+};
 
 interface LogColumnConfigurationPanelProps {
   logColumnConfigurationProps: LogColumnConfigurationProps;
+  dragHandleProps: DragHandleProps;
 }
 
-const LogColumnConfigurationPanel: React.FunctionComponent<LogColumnConfigurationPanelProps> = ({
-  logColumnConfigurationProps,
-}) => (
+const LogColumnConfigurationPanel: React.FunctionComponent<
+  LogColumnConfigurationPanelProps
+> = props => (
   <>
     <EuiSpacer size="m" />
-    {logColumnConfigurationProps.type === 'timestamp' ? (
-      <TimestampLogColumnConfigurationPanel
-        logColumnConfigurationProps={logColumnConfigurationProps}
-      />
-    ) : logColumnConfigurationProps.type === 'message' ? (
-      <MessageLogColumnConfigurationPanel
-        logColumnConfigurationProps={logColumnConfigurationProps}
-      />
+    {props.logColumnConfigurationProps.type === 'timestamp' ? (
+      <TimestampLogColumnConfigurationPanel {...props} />
+    ) : props.logColumnConfigurationProps.type === 'message' ? (
+      <MessageLogColumnConfigurationPanel {...props} />
     ) : (
-      <FieldLogColumnConfigurationPanel logColumnConfigurationProps={logColumnConfigurationProps} />
+      <FieldLogColumnConfigurationPanel
+        logColumnConfigurationProps={props.logColumnConfigurationProps}
+        dragHandleProps={props.dragHandleProps}
+      />
     )}
   </>
 );
 
 const TimestampLogColumnConfigurationPanel: React.FunctionComponent<
   LogColumnConfigurationPanelProps
-> = ({ logColumnConfigurationProps }) => (
+> = ({ logColumnConfigurationProps, dragHandleProps }) => (
   <ExplainedLogColumnConfigurationPanel
     fieldName="Timestamp"
     helpText={
@@ -107,12 +137,13 @@ const TimestampLogColumnConfigurationPanel: React.FunctionComponent<
       />
     }
     removeColumn={logColumnConfigurationProps.remove}
+    dragHandleProps={dragHandleProps}
   />
 );
 
 const MessageLogColumnConfigurationPanel: React.FunctionComponent<
   LogColumnConfigurationPanelProps
-> = ({ logColumnConfigurationProps }) => (
+> = ({ logColumnConfigurationProps, dragHandleProps }) => (
   <ExplainedLogColumnConfigurationPanel
     fieldName="Message"
     helpText={
@@ -123,19 +154,27 @@ const MessageLogColumnConfigurationPanel: React.FunctionComponent<
       />
     }
     removeColumn={logColumnConfigurationProps.remove}
+    dragHandleProps={dragHandleProps}
   />
 );
 
 const FieldLogColumnConfigurationPanel: React.FunctionComponent<{
   logColumnConfigurationProps: FieldLogColumnConfigurationProps;
+  dragHandleProps: DragHandleProps;
 }> = ({
   logColumnConfigurationProps: {
     logColumnConfiguration: { field },
     remove,
   },
+  dragHandleProps,
 }) => (
   <EuiPanel data-test-subj={`logColumnPanel fieldLogColumnPanel fieldLogColumnPanel:${field}`}>
     <EuiFlexGroup>
+      <EuiFlexItem grow={false}>
+        <div {...dragHandleProps}>
+          <EuiIcon type="grab" />
+        </div>
+      </EuiFlexItem>
       <EuiFlexItem grow={1}>
         <FormattedMessage
           id="xpack.infra.sourceConfiguration.fieldLogColumnTitle"
@@ -156,11 +195,17 @@ const ExplainedLogColumnConfigurationPanel: React.FunctionComponent<{
   fieldName: React.ReactNode;
   helpText: React.ReactNode;
   removeColumn: () => void;
-}> = ({ fieldName, helpText, removeColumn }) => (
+  dragHandleProps: DragHandleProps;
+}> = ({ fieldName, helpText, removeColumn, dragHandleProps }) => (
   <EuiPanel
     data-test-subj={`logColumnPanel systemLogColumnPanel systemLogColumnPanel:${fieldName}`}
   >
     <EuiFlexGroup>
+      <EuiFlexItem grow={false}>
+        <div {...dragHandleProps}>
+          <EuiIcon type="grab" />
+        </div>
+      </EuiFlexItem>
       <EuiFlexItem grow={1}>{fieldName}</EuiFlexItem>
       <EuiFlexItem grow={3}>
         <EuiText size="s" color="subdued">

x-pack/legacy/plugins/infra/public/components/source_configuration/source_configuration_flyout.tsx

@@ -57,6 +57,7 @@ export const SourceConfigurationFlyout = injectI18n(
 
     const {
       addLogColumn,
+      moveLogColumn,
       indicesConfigurationProps,
       logColumnConfigurationProps,
       errors,
@@ -137,6 +138,7 @@ export const SourceConfigurationFlyout = injectI18n(
                     <EuiSpacer />
                     <LogColumnsConfigurationPanel
                       addLogColumn={addLogColumn}
+                      moveLogColumn={moveLogColumn}
                       availableFields={availableFields}
                       isLoading={isLoading}
                       logColumnConfiguration={logColumnConfigurationProps}
@@ -148,6 +150,7 @@ export const SourceConfigurationFlyout = injectI18n(
           : [],
       [
         addLogColumn,
+        moveLogColumn,
         availableFields,
         indicesConfigurationProps,
         intl.formatMessage,

x-pack/legacy/plugins/infra/public/components/source_configuration/source_configuration_form_state.tsx

@@ -105,6 +105,7 @@ export const useSourceConfigurationFormState = (configuration?: SourceConfigurat
 
   return {
     addLogColumn: logColumnsConfigurationFormState.addLogColumn,
+    moveLogColumn: logColumnsConfigurationFormState.moveLogColumn,
     errors,
     formState,
     formStateChanges,