feat(console): implement custom ui assets upload component

packages/console/src/components/CustomUiAssetsUploader/index.module.scss

@@ -0,0 +1,62 @@
+@use '@/scss/underscore' as _;
+
+.placeholder {
+  display: flex;
+  align-items: center;
+  padding: _.unit(5) _.unit(5) _.unit(5) _.unit(4);
+  border: 1px solid var(--color-border);
+  border-radius: 12px;
+  gap: _.unit(4);
+  position: relative;
+  overflow: hidden;
+
+  .main {
+    display: flex;
+    flex-direction: column;
+    gap: _.unit(0.5);
+    flex: 1;
+
+    .name {
+      font: var(--font-label-2);
+      color: var(--color-text-primary);
+    }
+
+    .secondaryInfo {
+      display: flex;
+      align-items: center;
+      gap: _.unit(3);
+    }
+
+    .info {
+      font: var(--font-body-3);
+      color: var(--color-text-secondary);
+    }
+
+    .error {
+      font: var(--font-body-3);
+      color: var(--color-error);
+    }
+  }
+
+  .icon {
+    width: 40px;
+    height: 40px;
+  }
+
+  // display a fake progress bar on the bottom with animations
+  .progressBar {
+    position: absolute;
+    bottom: 0;
+    left: 0;
+    width: 100%;
+    height: 4px;
+    background-color: var(--color-primary);
+    transform: scaleX(0);
+    transform-origin: left;
+    transition: transform 0.3s;
+  }
+
+  &.hasError {
+    border-color: var(--color-error);
+  }
+}

packages/console/src/components/CustomUiAssetsUploader/index.tsx

@@ -0,0 +1,89 @@
+import { type CustomUiAssets, maxUploadFileSize, type AllowedUploadMimeType } from '@logto/schemas';
+import { format } from 'date-fns/fp';
+import { useCallback, useState } from 'react';
+import { useTranslation } from 'react-i18next';
+
+import DeleteIcon from '@/assets/icons/delete.svg';
+import IconButton from '@/ds-components/IconButton';
+import FileUploader from '@/ds-components/Uploader/FileUploader';
+import { formatBytes } from '@/utils/uploader';
+
+import FileIcon from '../FileIcon';
+
+import * as styles from './index.module.scss';
+
+type Props = {
+  readonly value?: CustomUiAssets;
+  readonly onChange: (value: CustomUiAssets) => void;
+};
+
+const allowedMimeTypes: AllowedUploadMimeType[] = ['application/zip'];
+
+function CustomUiAssetsUploader({ value, onChange }: Props) {
+  const { t } = useTranslation(undefined, { keyPrefix: 'admin_console' });
+  const [file, setFile] = useState<File>();
+  const [error, setError] = useState<string>();
+  const showUploader = !value?.id && !file && !error;
+
+  const onComplete = useCallback(
+    (id: string) => {
+      setFile(undefined);
+      onChange({ id, createdAt: Date.now() });
+    },
+    [onChange]
+  );
+
+  const onErrorChange = useCallback(
+    (errorMessage?: string, files?: File[]) => {
+      if (errorMessage) {
+        setError(errorMessage);
+      }
+      if (files?.length) {
+        setFile(files[0]);
+      }
+    },
+    [setError, setFile]
+  );
+
+  if (showUploader) {
+    return (
+      <FileUploader<{ customUiAssetId: string }>
+        allowedMimeTypes={allowedMimeTypes}
+        maxSize={maxUploadFileSize}
+        uploadUrl="api/sign-in-exp/default/custom-ui-assets"
+        onCompleted={({ customUiAssetId }) => {
+          onComplete(customUiAssetId);
+        }}
+        onUploadErrorChange={onErrorChange}
+      />
+    );
+  }
+
+  return (
+    <div className={styles.placeholder}>
+      <FileIcon />
+      <div className={styles.main}>
+        <div className={styles.name}>{file?.name ?? t('sign_in_exp.custom_ui.title')}</div>
+        <div className={styles.secondaryInfo}>
+          {!!value?.createdAt && (
+            <span className={styles.info}>{format('yyyy/MM/dd HH:mm')(value.createdAt)}</span>
+          )}
+          {file && <span className={styles.info}>{formatBytes(file.size)}</span>}
+          {error && <span className={styles.error}>{error}</span>}
+        </div>
+      </div>
+      <IconButton
+        onClick={() => {
+          setFile(undefined);
+          setError(undefined);
+          onChange({ id: '', createdAt: 0 });
+        }}
+      >
+        <DeleteIcon />
+      </IconButton>
+      {file && <div className={styles.progressBar} />}
+    </div>
+  );
+}
+
+export default CustomUiAssetsUploader;

packages/console/src/components/FileIcon/index.tsx

@@ -0,0 +1,20 @@
+import { Theme } from '@logto/schemas';
+import { type ReactNode } from 'react';
+
+import FileIconDark from '@/assets/icons/file-icon-dark.svg';
+import FileIconLight from '@/assets/icons/file-icon.svg';
+import useTheme from '@/hooks/use-theme';
+
+const themeToRoleIcon = Object.freeze({
+  [Theme.Light]: <FileIconLight />,
+  [Theme.Dark]: <FileIconDark />,
+} satisfies Record<Theme, ReactNode>);
+
+/** Render a role icon according to the current theme. */
+const FileIcon = () => {
+  const theme = useTheme();
+
+  return themeToRoleIcon[theme];
+};
+
+export default FileIcon;

packages/console/src/components/ImageInputs/index.tsx

@@ -137,7 +137,9 @@ function ImageInputs<FormContext extends FieldValues>({
                 actionDescription={t(`sign_in_exp.branding.with_${field.theme}`, {
                   value: t(`sign_in_exp.branding_uploads.${field.type}.title`),
                 })}
-                onCompleted={onChange}
+                onCompleted={({ url }) => {
+                  onChange(url);
+                }}
                 // Noop fallback should not be necessary, but for TypeScript to be happy
                 onUploadErrorChange={uploadErrorChangeHandlers[field.name] ?? noop}
                 onDelete={() => {

packages/console/src/components/SignInExperiencePreview/index.module.scss

@@ -85,4 +85,28 @@
       }
     }
   }
+
+  &.disabled {
+    background: url('raw:../../assets/images/blur-preview.svg') 0 0 / 100% auto no-repeat;
+  }
+
+  .placeholder {
+    width: 100%;
+    height: calc(_screenSize.$web-height + _.unit(20));
+    padding: _.unit(10);
+    backdrop-filter: blur(25px);
+    display: flex;
+    flex-direction: column;
+    color: var(--color-static-white);
+
+    .title {
+      font: var(--font-label-2);
+    }
+
+    .description {
+      margin-top: _.unit(1.5);
+      font: var(--font-body-2);
+      white-space: pre-wrap;
+    }
+  }
 }

packages/console/src/components/SignInExperiencePreview/index.tsx

@@ -4,7 +4,15 @@ import type { ConnectorMetadata, SignInExperience, ConnectorResponse } from '@lo
 import { conditional } from '@silverhand/essentials';
 import classNames from 'classnames';
 import { format } from 'date-fns';
-import { useContext, useRef, useMemo, useCallback, useEffect, useState } from 'react';
+import {
+  useContext,
+  useRef,
+  useMemo,
+  useCallback,
+  useEffect,
+  useState,
+  type ReactNode,
+} from 'react';
 import { useTranslation } from 'react-i18next';
 import useSWR from 'swr';
 
@@ -28,6 +36,16 @@ type Props = {
    * the `AppDataContext` will be used.
    */
   readonly endpoint?: URL;
+  /**
+   * Whether the preview is disabled. If `true`, the preview will be disabled and a placeholder will
+   * be shown instead. Defaults to `false`.
+   */
+  // eslint-disable-next-line react/boolean-prop-naming
+  readonly disabled?: boolean;
+  /**
+   * The placeholder to show when the preview is disabled.
+   */
+  readonly disabledPlaceholder?: ReactNode;
 };
 
 function SignInExperiencePreview({
@@ -36,6 +54,8 @@ function SignInExperiencePreview({
   language = 'en',
   signInExperience,
   endpoint: endpointInput,
+  disabled = false,
+  disabledPlaceholder,
 }: Props) {
   const { t } = useTranslation(undefined, { keyPrefix: 'admin_console' });
 
@@ -97,14 +117,18 @@ function SignInExperiencePreview({
   }, []);
 
   useEffect(() => {
+    if (disabled) {
+      setIframeLoaded(false);
+      return;
+    }
     const iframe = previewRef.current;
 
     iframe?.addEventListener('load', iframeOnLoadEventHandler);
 
     return () => {
       iframe?.removeEventListener('load', iframeOnLoadEventHandler);
     };
-  }, [iframeLoaded, iframeOnLoadEventHandler]);
+  }, [iframeLoaded, disabled, iframeOnLoadEventHandler]);
 
   useEffect(() => {
     if (!iframeLoaded) {
@@ -122,7 +146,8 @@ function SignInExperiencePreview({
     <div
       className={classNames(
         styles.preview,
-        platform === PreviewPlatform.DesktopWeb ? styles.web : styles.mobile
+        platform === PreviewPlatform.DesktopWeb ? styles.web : styles.mobile,
+        disabled && styles.disabled
       )}
       style={conditional(
         platform === PreviewPlatform.DesktopWeb && {
@@ -131,24 +156,33 @@ function SignInExperiencePreview({
         }
       )}
     >
-      <div className={styles.deviceWrapper}>
-        <div className={classNames(styles.device, styles[String(mode)])}>
-          {platform !== PreviewPlatform.DesktopWeb && (
-            <div className={styles.topBar}>
-              <div className={styles.time}>{format(Date.now(), 'HH:mm')}</div>
-              <PhoneInfo />
-            </div>
-          )}
-          <iframe
-            ref={previewRef}
-            // Allow all sandbox rules
-            sandbox={undefined}
-            src={new URL('/sign-in?preview=true', endpoint).toString()}
-            tabIndex={-1}
-            title={t('sign_in_exp.preview.title')}
-          />
+      {disabled ? (
+        <div className={styles.placeholder}>
+          <div className={styles.title}>{t('sign_in_exp.custom_ui.bring_your_ui_title')}</div>
+          <div className={styles.description}>
+            {t('sign_in_exp.custom_ui.preview_with_bring_your_ui_description')}
+          </div>
         </div>
-      </div>
+      ) : (
+        <div className={styles.deviceWrapper}>
+          <div className={classNames(styles.device, styles[String(mode)])}>
+            {platform !== PreviewPlatform.DesktopWeb && (
+              <div className={styles.topBar}>
+                <div className={styles.time}>{format(Date.now(), 'HH:mm')}</div>
+                <PhoneInfo />
+              </div>
+            )}
+            <iframe
+              ref={previewRef}
+              // Allow all sandbox rules
+              sandbox={undefined}
+              src={new URL('/sign-in?preview=true', endpoint).toString()}
+              tabIndex={-1}
+              title={t('sign_in_exp.preview.title')}
+            />
+          </div>
+        </div>
+      )}
     </div>
   );
 }