[Files] Use upload component in files example (#141362)

* added modal and removed hardcoded image upload

* remove unused var

* added shared imports file and hooked up modal component to example app

* use the Image component from files and update the title for the files modal

* set and show custom metadata

* fix content type not being passed through to upload or to picker component

* remove old commented out code

x-pack/examples/files_example/common/index.ts

@@ -16,6 +16,7 @@ const httpTags = {
 
 export const exampleFileKind: FileKind = {
   id: 'filesExample',
+  allowedMimeTypes: ['image/png'],
   http: {
     create: httpTags,
     delete: httpTags,

x-pack/examples/files_example/public/application.tsx

@@ -11,6 +11,7 @@ import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
 import { AppMountParameters, CoreStart } from '@kbn/core/public';
 import { AppPluginStartDependencies } from './types';
 import { FilesExampleApp } from './components/app';
+import { FilesContext } from './imports';
 
 const queryClient = new QueryClient();
 
@@ -21,7 +22,9 @@ export const renderApp = (
 ) => {
   ReactDOM.render(
     <QueryClientProvider client={queryClient}>
-      <FilesExampleApp files={files} notifications={notifications} />
+      <FilesContext>
+        <FilesExampleApp files={files} notifications={notifications} />
+      </FilesContext>
     </QueryClientProvider>,
     element
   );

x-pack/examples/files_example/public/components/app.tsx

@@ -10,10 +10,8 @@ import { useQuery } from '@tanstack/react-query';
 import type { FileJSON } from '@kbn/files-plugin/common';
 import type { FilesClientResponses } from '@kbn/files-plugin/public';
 
-const names = ['foo', 'bar', 'baz'];
-
 import {
-  EuiPageTemplate_Deprecated as EuiPageTemplate,
+  EuiPageTemplate,
   EuiInMemoryTable,
   EuiInMemoryTableProps,
   EuiButton,
@@ -26,8 +24,7 @@ import { CoreStart } from '@kbn/core/public';
 import { DetailsFlyout } from './details_flyout';
 import type { FileClients } from '../types';
 import { ConfirmButtonIcon } from './confirm_button';
-// @ts-ignore
-import imageBase64 from '!!raw-loader!../assets/image.png.base64';
+import { Modal } from './modal';
 
 interface FilesExampleAppDeps {
   files: FileClients;
@@ -40,37 +37,15 @@ export const FilesExampleApp = ({ files, notifications }: FilesExampleAppDeps) =
   const { data, isLoading, error, refetch } = useQuery<ListResponse>(['files'], () =>
     files.example.list()
   );
-  const [isUploadingImage, setIsUploadingImage] = useState(false);
+  const [showUploadModal, setShowUploadModal] = useState(false);
   const [isDeletingFile, setIsDeletingFile] = useState(false);
   const [selectedItem, setSelectedItem] = useState<undefined | FileJSON>();
 
-  const uploadImage = async () => {
-    try {
-      setIsUploadingImage(true);
-      const { file } = await files.example.create({
-        name: names[Math.floor(Math.random() * names.length)],
-        alt: 'My image',
-        meta: { myValue: 'test' },
-        mimeType: 'image/png',
-      });
-      await refetch();
-      const blob = new Blob([Uint8Array.from(atob(imageBase64), (c) => c.charCodeAt(0))], {
-        type: 'image/png',
-      });
-      await files.example.upload({ id: file.id, body: blob });
-      await refetch();
-      notifications.toasts.addSuccess('Sucessfully uploaded image');
-    } finally {
-      setIsUploadingImage(false);
-    }
-  };
-
   const renderToolsRight = () => {
     return [
       <EuiButton
-        onClick={uploadImage}
-        isDisabled={isUploadingImage || isLoading || isDeletingFile}
-        isLoading={isUploadingImage}
+        onClick={() => setShowUploadModal(true)}
+        isDisabled={isLoading || isDeletingFile}
         iconType="exportAction"
       >
         Upload image
@@ -84,7 +59,11 @@ export const FilesExampleApp = ({ files, notifications }: FilesExampleAppDeps) =
     {
       field: 'name',
       name: 'Name',
-      render: (name, item) => <EuiLink onClick={() => setSelectedItem(item)}>{name}</EuiLink>,
+      render: (name, item) => (
+        <EuiLink disabled={isDeletingFile} onClick={() => setSelectedItem(item)}>
+          {name}
+        </EuiLink>
+      ),
     },
     {
       field: 'status',
@@ -107,6 +86,7 @@ export const FilesExampleApp = ({ files, notifications }: FilesExampleAppDeps) =
           isPrimary: true,
           render: (item) => (
             <EuiButtonIcon
+              disabled={isDeletingFile}
               aria-label="View file details"
               iconType="eye"
               onClick={() => setSelectedItem(item)}
@@ -139,23 +119,22 @@ export const FilesExampleApp = ({ files, notifications }: FilesExampleAppDeps) =
 
   return (
     <>
-      <EuiPageTemplate
-        pageHeader={{
-          pageTitle: 'Files example',
-        }}
-      >
-        <EuiInMemoryTable
-          columns={columns}
-          items={items}
-          itemId="id"
-          loading={isLoading || isDeletingFile}
-          error={error ? JSON.stringify(error) : undefined}
-          sorting
-          search={{
-            toolsRight: renderToolsRight(),
-          }}
-          pagination
-        />
+      <EuiPageTemplate restrictWidth>
+        <EuiPageTemplate.Header pageTitle="Files example" />
+        <EuiPageTemplate.Section>
+          <EuiInMemoryTable
+            columns={columns}
+            items={items}
+            itemId="id"
+            loading={isLoading || isDeletingFile}
+            error={error ? JSON.stringify(error) : undefined}
+            sorting
+            search={{
+              toolsRight: renderToolsRight(),
+            }}
+            pagination
+          />
+        </EuiPageTemplate.Section>
       </EuiPageTemplate>
       {selectedItem && (
         <DetailsFlyout
@@ -164,6 +143,17 @@ export const FilesExampleApp = ({ files, notifications }: FilesExampleAppDeps) =
           onDismiss={() => setSelectedItem(undefined)}
         />
       )}
+      {showUploadModal && (
+        <Modal
+          client={files.unscoped}
+          onDismiss={() => setShowUploadModal(false)}
+          onUploaded={() => {
+            notifications.toasts.addSuccess('Uploaded file!');
+            refetch();
+            setShowUploadModal(false);
+          }}
+        />
+      )}
     </>
   );
 };

x-pack/examples/files_example/public/components/details_flyout.tsx

@@ -23,6 +23,7 @@ import {
 } from '@elastic/eui';
 import type { FileJSON } from '@kbn/files-plugin/common';
 import { FileClients } from '../types';
+import { Image } from '../imports';
 
 interface Props {
   file: FileJSON;
@@ -66,10 +67,16 @@ export const DetailsFlyout: FunctionComponent<Props> = ({ files, file, onDismiss
               title: 'Last updated',
               description: moment(file.updated).fromNow(),
             },
+            {
+              title: 'Custom meta',
+              description: (
+                <pre>{file.meta ? JSON.stringify(file.meta, null, 2) : '<no custom metadata>'}</pre>
+              ),
+            },
           ]}
         />
         <EuiSpacer size="xl" />
-        <img
+        <Image
           css={css`
             height: 400px;
           `}

x-pack/examples/files_example/public/components/modal.tsx

@@ -0,0 +1,38 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import type { FunctionComponent } from 'react';
+import React from 'react';
+import { EuiModal, EuiModalHeader, EuiModalBody, EuiText } from '@elastic/eui';
+import { exampleFileKind } from '../../common';
+import { FilesClient, UploadFile } from '../imports';
+
+interface Props {
+  client: FilesClient;
+  onDismiss: () => void;
+  onUploaded: () => void;
+}
+
+export const Modal: FunctionComponent<Props> = ({ onDismiss, onUploaded, client }) => {
+  return (
+    <EuiModal onClose={onDismiss}>
+      <EuiModalHeader>
+        <EuiText>
+          <h2>Upload image</h2>
+        </EuiText>
+      </EuiModalHeader>
+      <EuiModalBody>
+        <UploadFile
+          kind={exampleFileKind.id}
+          client={client}
+          onDone={onUploaded}
+          meta={{ custom: 'meta' }}
+        />
+      </EuiModalBody>
+    </EuiModal>
+  );
+};

x-pack/examples/files_example/public/imports.ts

@@ -0,0 +1,16 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+export {
+  FilesClient,
+  FilesSetup,
+  FilesStart,
+  UploadFile,
+  FilesContext,
+  ScopedFilesClient,
+  Image,
+} from '@kbn/files-plugin/public';

x-pack/examples/files_example/public/plugin.ts

@@ -12,8 +12,9 @@ import { FilesExamplePluginsStart, FilesExamplePluginsSetup } from './types';
 export class FilesExamplePlugin
   implements Plugin<unknown, unknown, FilesExamplePluginsSetup, FilesExamplePluginsStart>
 {
-  public setup(core: CoreSetup<FilesExamplePluginsStart>) {
-    // Register an application into the side navigation menu
+  public setup(core: CoreSetup<FilesExamplePluginsStart>, { files }: FilesExamplePluginsSetup) {
+    files.registerFileKind(exampleFileKind);
+
     core.application.register({
       id: PLUGIN_ID,
       title: PLUGIN_NAME,
@@ -21,13 +22,14 @@ export class FilesExamplePlugin
         // Load application bundle
         const { renderApp } = await import('./application');
         // Get start services as specified in kibana.json
-        const [coreStart, { files }] = await core.getStartServices();
+        const [coreStart, deps] = await core.getStartServices();
         // Render the application
         return renderApp(
           coreStart,
           {
             files: {
-              example: files.filesClientFactory.asScoped(exampleFileKind.id),
+              unscoped: deps.files.filesClientFactory.asUnscoped(),
+              example: deps.files.filesClientFactory.asScoped(exampleFileKind.id),
             },
           },
           params

x-pack/examples/files_example/public/types.ts

@@ -5,7 +5,7 @@
  * 2.0.
  */
 
-import type { FilesSetup, FilesStart, ScopedFilesClient } from '@kbn/files-plugin/public';
+import type { FilesSetup, FilesStart, ScopedFilesClient, FilesClient } from './imports';
 
 export interface FilesExamplePluginsSetup {
   files: FilesSetup;
@@ -16,6 +16,7 @@ export interface FilesExamplePluginsStart {
 }
 
 export interface FileClients {
+  unscoped: FilesClient;
   // Example file kind
   example: ScopedFilesClient;
 }

x-pack/plugins/files/public/components/upload_file/upload_file.tsx

@@ -92,14 +92,15 @@ export const UploadFile = <Kind extends string = string>({
 }: Props<Kind>): ReturnType<FunctionComponent> => {
   const { registry } = useFilesContext();
   const ref = useRef<null | EuiFilePicker>(null);
+  const fileKind = registry.get(kindId);
   const uploadState = useMemo(
     () =>
       createUploadState({
         client,
-        fileKind: registry.get(kindId),
+        fileKind,
         allowRepeatedUploads,
       }),
-    [client, kindId, allowRepeatedUploads, registry]
+    [client, allowRepeatedUploads, fileKind]
   );
 
   /**
@@ -118,7 +119,13 @@ export const UploadFile = <Kind extends string = string>({
 
   return (
     <context.Provider value={uploadState}>
-      <Component ref={ref} meta={meta} immediate={immediate} allowClear={allowClear} />
+      <Component
+        ref={ref}
+        accept={fileKind.allowedMimeTypes?.join(',')}
+        meta={meta}
+        immediate={immediate}
+        allowClear={allowClear}
+      />
     </context.Provider>
   );
 };

x-pack/plugins/files/public/components/upload_file/upload_state.ts

@@ -190,6 +190,7 @@ export class UploadState {
             id: uploadTarget.id,
             kind: this.fileKind.id,
             abortSignal,
+            contentType: mime,
           })
         );
       }),

x-pack/plugins/files/public/files_client/files_client.ts

@@ -127,10 +127,10 @@ export function createFilesClient({
         body: JSON.stringify(body),
       });
     },
-    upload: ({ kind, abortSignal, ...args }) => {
+    upload: ({ kind, abortSignal, contentType, ...args }) => {
       return http.put(apiRoutes.getUploadRoute(scopedFileKind ?? kind, args.id), {
         headers: {
-          'Content-Type': 'application/octet-stream',
+          'Content-Type': contentType ?? 'application/octet-stream',
         },
         signal: abortSignal,
         body: args.body as BodyInit,

x-pack/plugins/files/public/types.ts

@@ -96,7 +96,10 @@ export interface FilesClient extends GlobalEndpoints {
    *
    * @param args - upload file args
    */
-  upload: ClientMethodFrom<UploadFileKindHttpEndpoint, { abortSignal?: AbortSignal }>;
+  upload: ClientMethodFrom<
+    UploadFileKindHttpEndpoint,
+    { abortSignal?: AbortSignal; contentType?: string }
+  >;
   /**
    * Stream a download of the file object's content.
    *