feat: extension manager in preferences (#670)

* feat: add extensions pane

* fix: rename extensions folder for MacOS compatibility

* feat: extension toggles and uninstall

* feat: implement extension renaming, activation, deactivation and UI/UX fixes

* feat(preferences): improve extension item design

* feat(preferences): hide custom extension input when installation confirmed

app/assets/javascripts/preferences/PreferencesMenu.ts

@@ -6,6 +6,7 @@ const PREFERENCE_IDS = [
   'account',
   'appearance',
   'security',
+  'extensions',
   'listed',
   'shortcuts',
   'accessibility',
@@ -28,6 +29,7 @@ const PREFERENCES_MENU_ITEMS: PreferencesMenuItem[] = [
   { id: 'account', label: 'Account', icon: 'user' },
   { id: 'appearance', label: 'Appearance', icon: 'themes' },
   { id: 'security', label: 'Security', icon: 'security' },
+  { id: 'extensions', label: 'Extensions', icon: 'tune' },
   { id: 'listed', label: 'Listed', icon: 'listed' },
   { id: 'shortcuts', label: 'Shortcuts', icon: 'keyboard' },
   { id: 'accessibility', label: 'Accessibility', icon: 'accessibility' },
@@ -65,7 +67,7 @@ export class PreferencesMenu {
     );
   }
 
-  selectPane(key: PreferenceId) {
+  selectPane(key: PreferenceId): void {
     this._selectedPane = key;
   }
 }

app/assets/javascripts/preferences/PreferencesView.tsx

@@ -9,6 +9,7 @@ import { WebApplication } from '@/ui_models/application';
 import { MfaProps } from './panes/two-factor-auth/MfaProps';
 import { AppState } from '@/ui_models/app_state';
 import { useEffect } from 'preact/hooks';
+import { Extensions } from './panes/Extensions';
 
 interface PreferencesProps extends MfaProps {
   application: WebApplication;
@@ -40,6 +41,8 @@ const PaneSelector: FunctionComponent<
           application={props.application}
         />
       );
+    case 'extensions':
+      return <Extensions application={props.application} />;
     case 'listed':
       return <Listed application={props.application} />;
     case 'shortcuts':

app/assets/javascripts/preferences/panes/Extensions.tsx

@@ -0,0 +1,112 @@
+import { ContentType, SNComponent } from '@standardnotes/snjs';
+import { Button } from '@/components/Button';
+import { DecoratedInput } from '@/components/DecoratedInput';
+import { WebApplication } from '@/ui_models/application';
+import { FunctionComponent } from 'preact';
+import {
+  Title,
+  PreferencesGroup,
+  PreferencesPane,
+  PreferencesSegment,
+} from '../components';
+import { ConfirmCustomExtension, ExtensionItem } from './extensions-segments';
+import { useEffect, useRef, useState } from 'preact/hooks';
+
+const loadExtensions = (application: WebApplication) => application.getItems([
+  ContentType.ActionsExtension,
+  ContentType.Component,
+  ContentType.Theme,
+]) as SNComponent[];
+
+export const Extensions: FunctionComponent<{
+  application: WebApplication
+}> = ({ application }) => {
+
+  const [customUrl, setCustomUrl] = useState('');
+  const [confirmableExtension, setConfirmableExtension] = useState<SNComponent | undefined>(undefined);
+  const [extensions, setExtensions] = useState(loadExtensions(application));
+
+  const confirmableEnd = useRef<HTMLDivElement>(null);
+
+  useEffect(() => {
+    if (confirmableExtension) {
+      confirmableEnd.current.scrollIntoView({ behavior: 'smooth' });
+    }
+  }, [confirmableExtension, confirmableEnd]);
+
+  const uninstallExtension = async (extension: SNComponent) => {
+    await application.deleteItem(extension);
+    setExtensions(loadExtensions(application));
+  };
+
+  const submitExtensionUrl = async (url: string) => {
+    const component = await application.downloadExternalFeature(url);
+    if (component) {
+      setConfirmableExtension(component);
+    }
+  };
+
+  const handleConfirmExtensionSubmit = async (confirm: boolean) => {
+    if (confirm) {
+      confirmExtension();
+    }
+    setConfirmableExtension(undefined);
+    setCustomUrl('');
+  };
+
+  const confirmExtension = async () => {
+    await application.insertItem(confirmableExtension as SNComponent);
+    setExtensions(loadExtensions(application));
+  };
+
+  const toggleActivateExtension = (extension: SNComponent) => {
+    application.toggleComponent(extension);
+    setExtensions(loadExtensions(application));
+  };
+
+  return (
+    <PreferencesPane>
+      <PreferencesGroup>
+        {
+          extensions
+            .filter(extension => extension.package_info.identifier !== 'org.standardnotes.extensions-manager')
+            .sort((e1, e2) => e1.name.toLowerCase().localeCompare(e2.name.toLowerCase()))
+            .map((extension, i) => (
+              <ExtensionItem application={application} extension={extension}
+                first={i === 0} uninstall={uninstallExtension} toggleActivate={toggleActivateExtension} />
+            ))
+        }
+      </PreferencesGroup>
+
+      <PreferencesGroup>
+        {!confirmableExtension &&
+          <PreferencesSegment>
+            <Title>Install Custom Extension</Title>
+            <div className="min-h-2" />
+            <DecoratedInput
+              placeholder={'Enter Extension URL'}
+              text={customUrl}
+              onChange={(value) => { setCustomUrl(value); }}
+            />
+            <div className="min-h-1" />
+            <Button
+              type="primary"
+              label="Install"
+              onClick={() => submitExtensionUrl(customUrl)}
+            />
+
+          </PreferencesSegment>
+        }
+        {confirmableExtension &&
+          <PreferencesSegment>
+            <ConfirmCustomExtension
+              component={confirmableExtension}
+              callback={handleConfirmExtensionSubmit}
+            />
+            <div ref={confirmableEnd} />
+          </PreferencesSegment>
+        }
+      </PreferencesGroup>
+    </PreferencesPane>
+  );
+};

app/assets/javascripts/preferences/panes/extensions-segments/ConfirmCustomExtension.tsx

@@ -0,0 +1,80 @@
+import { displayStringForContentType, SNComponent } from '@standardnotes/snjs';
+import { Button } from '@/components/Button';
+import { FunctionComponent } from 'preact';
+import {
+  Title,
+  Text,
+  Subtitle,
+  PreferencesSegment,
+} from '../../components';
+
+export const ConfirmCustomExtension: FunctionComponent<{
+  component: SNComponent,
+  callback: (confirmed: boolean) => void
+}> = ({ component, callback }) => {
+
+  const fields = [
+    {
+      label: 'Name',
+      value: component.package_info.name
+    },
+    {
+      label: 'Description',
+      value: component.package_info.description
+    },
+    {
+      label: 'Version',
+      value: component.package_info.version
+    },
+    {
+      label: 'Hosted URL',
+      value: component.package_info.url
+    },
+    {
+      label: 'Download URL',
+      value: component.package_info.download_url
+    },
+    {
+      label: 'Extension Type',
+      value: displayStringForContentType(component.content_type)
+    },
+  ];
+
+  return (
+    <PreferencesSegment>
+      <Title>Confirm Extension</Title>
+
+      {fields.map((field) => {
+        if (!field.value) { return undefined; }
+        return (
+          <>
+            <Subtitle>{field.label}</Subtitle>
+            <Text>{field.value}</Text>
+            <div className="min-h-2" />
+          </>
+        );
+      })}
+
+      <div className="min-h-3" />
+
+      <div className="flex flex-row">
+        <Button
+          className="min-w-20"
+          type="primary"
+          label="Install"
+          onClick={() => callback(true)}
+        />
+
+        <div className="min-w-3" />
+
+        <Button
+          className="min-w-20"
+          type="primary"
+          label="Cancel"
+          onClick={() => callback(false)}
+        />
+      </div>
+
+    </PreferencesSegment>
+  );
+};