refactor(editor): extract mobile extension builder (#12239)

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit

- **New Features**
  - Introduced a new mobile view extension that activates mobile-specific UI features based on the runtime environment.
  - Automatically enables mobile keyboard toolbar and linked document menu features in mobile contexts.

- **Improvements**
  - Simplified code and paragraph block configurations on mobile, including disabling line numbers and adjusting placeholders.
  - Enhanced configuration chaining to include mobile-specific settings by default.
  - Improved extension registration flow with method chaining support.

- **Refactor**
  - Removed deprecated mobile patch classes and configurations, consolidating mobile logic into dedicated extensions.
  - Streamlined mobile-related code for better maintainability and performance.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/frontend/core/src/blocksuite/block-suite-editor/lit-adaper.tsx

@@ -98,7 +98,8 @@ const usePatchSpecs = (mode: DocMode) => {
       })
       .database(framework)
       .linkedDoc(framework)
-      .paragraph(enableAI).value;
+      .paragraph(enableAI)
+      .mobile(framework).value;
 
     if (BUILD_CONFIG.isMobileEdition) {
       if (mode === 'page') {

packages/frontend/core/src/blocksuite/extensions/mobile/index.ts

@@ -0,0 +1,33 @@
+import { KeyboardToolbarExtension } from '@affine/core/blocksuite/extensions/mobile/keyboard-toolbar-extension';
+import { MobileFeatureFlagControl } from '@affine/core/blocksuite/extensions/mobile/mobile-feature-flag-control';
+import {
+  type ViewExtensionContext,
+  ViewExtensionProvider,
+} from '@blocksuite/affine/ext-loader';
+import { FrameworkProvider } from '@toeverything/infra';
+import { z } from 'zod';
+
+const optionsSchema = z.object({
+  framework: z.instanceof(FrameworkProvider).optional(),
+});
+
+type MobileViewOptions = z.infer<typeof optionsSchema>;
+
+export class MobileViewExtension extends ViewExtensionProvider<MobileViewOptions> {
+  override name = 'mobile-view-extension';
+
+  override schema = optionsSchema;
+
+  override setup(context: ViewExtensionContext, options?: MobileViewOptions) {
+    super.setup(context, options);
+    const isMobile = BUILD_CONFIG.isMobileEdition;
+    if (!isMobile) return;
+
+    const framework = options?.framework;
+    if (framework) {
+      context.register(KeyboardToolbarExtension(framework));
+    }
+
+    context.register(MobileFeatureFlagControl);
+  }
+}

packages/frontend/core/src/blocksuite/extensions/mobile/keyboard-toolbar-extension.ts

@@ -1,50 +1,15 @@
 import { VirtualKeyboardProvider } from '@affine/core/mobile/modules/virtual-keyboard';
-import { CodeBlockConfigExtension } from '@blocksuite/affine/blocks/code';
-import { ParagraphBlockConfigExtension } from '@blocksuite/affine/blocks/paragraph';
 import type { Container } from '@blocksuite/affine/global/di';
 import { DisposableGroup } from '@blocksuite/affine/global/disposable';
 import {
-  FeatureFlagService,
   VirtualKeyboardProvider as BSVirtualKeyboardProvider,
   type VirtualKeyboardProviderWithAction,
 } from '@blocksuite/affine/shared/services';
-import { type BlockStdScope, LifeCycleWatcher } from '@blocksuite/affine/std';
+import { LifeCycleWatcher } from '@blocksuite/affine/std';
 import type { ExtensionType } from '@blocksuite/affine/store';
 import { batch, signal } from '@preact/signals-core';
 import type { FrameworkProvider } from '@toeverything/infra';
 
-export class MobileSpecsPatches extends LifeCycleWatcher {
-  static override key = 'mobile-patches';
-
-  constructor(std: BlockStdScope) {
-    super(std);
-    const featureFlagService = std.get(FeatureFlagService);
-
-    featureFlagService.setFlag('enable_mobile_keyboard_toolbar', true);
-    featureFlagService.setFlag('enable_mobile_linked_doc_menu', true);
-  }
-}
-
-export const mobileParagraphConfig = ParagraphBlockConfigExtension({
-  getPlaceholder: model => {
-    const placeholders = {
-      text: '',
-      h1: 'Heading 1',
-      h2: 'Heading 2',
-      h3: 'Heading 3',
-      h4: 'Heading 4',
-      h5: 'Heading 5',
-      h6: 'Heading 6',
-      quote: '',
-    };
-    return placeholders[model.props.type];
-  },
-});
-
-export const mobileCodeConfig = CodeBlockConfigExtension({
-  showLineNumbers: false,
-});
-
 export function KeyboardToolbarExtension(
   framework: FrameworkProvider
 ): ExtensionType {
@@ -89,6 +54,7 @@ export function KeyboardToolbarExtension(
 
   if ('show' in affineVirtualKeyboardProvider) {
     const providerWithAction = affineVirtualKeyboardProvider;
+
     class BSVirtualKeyboardServiceWithShowAndHide
       extends BSVirtualKeyboardService
       implements VirtualKeyboardProviderWithAction
@@ -96,6 +62,7 @@ export function KeyboardToolbarExtension(
       show() {
         providerWithAction.show();
       }
+
       hide() {
         providerWithAction.hide();
       }

packages/frontend/core/src/blocksuite/extensions/mobile/mobile-feature-flag-control.ts

@@ -0,0 +1,14 @@
+import { FeatureFlagService } from '@blocksuite/affine/shared/services';
+import { type BlockStdScope, LifeCycleWatcher } from '@blocksuite/affine/std';
+
+export class MobileFeatureFlagControl extends LifeCycleWatcher {
+  static override key = 'mobile-patches';
+
+  constructor(std: BlockStdScope) {
+    super(std);
+    const featureFlagService = std.get(FeatureFlagService);
+
+    featureFlagService.setFlag('enable_mobile_keyboard_toolbar', true);
+    featureFlagService.setFlag('enable_mobile_linked_doc_menu', true);
+  }
+}

packages/frontend/core/src/blocksuite/manager/common-view.ts

@@ -11,6 +11,7 @@ import { CopilotTool } from '@affine/core/blocksuite/ai/tool/copilot-tool';
 import { aiPanelWidget } from '@affine/core/blocksuite/ai/widgets/ai-panel/ai-panel';
 import { edgelessCopilotWidget } from '@affine/core/blocksuite/ai/widgets/edgeless-copilot';
 import { buildDocDisplayMetaExtension } from '@affine/core/blocksuite/extensions/display-meta';
+import { EdgelessClipboardAIChatConfig } from '@affine/core/blocksuite/extensions/edgeless-clipboard';
 import { patchFileSizeLimitExtension } from '@affine/core/blocksuite/extensions/file-size-limit';
 import { getFontConfigExtension } from '@affine/core/blocksuite/extensions/font-config';
 import { patchPeekViewService } from '@affine/core/blocksuite/extensions/peek-view-service';
@@ -41,15 +42,17 @@ export class AffineCommonViewExtension extends ViewExtensionProvider<
     context: ViewExtensionContext,
     framework: FrameworkProvider
   ) {
-    context.register(AIChatBlockSpec);
-    context.register(AITranscriptionBlockSpec);
-    context.register([
-      AICodeBlockWatcher,
-      ToolbarModuleExtension({
-        id: BlockFlavourIdentifier('custom:affine:image'),
-        config: imageToolbarAIEntryConfig(),
-      }),
-    ]);
+    context
+      .register(AIChatBlockSpec)
+      .register(AITranscriptionBlockSpec)
+      .register(EdgelessClipboardAIChatConfig)
+      .register(AICodeBlockWatcher)
+      .register(
+        ToolbarModuleExtension({
+          id: BlockFlavourIdentifier('custom:affine:image'),
+          config: imageToolbarAIEntryConfig(),
+        })
+      );
     if (context.scope === 'edgeless' || context.scope === 'page') {
       context.register([
         aiPanelWidget,

packages/frontend/core/src/blocksuite/manager/editor-view.tsx

@@ -3,7 +3,6 @@ import { patchForAudioEmbedView } from '@affine/core/blocksuite/extensions/audio
 import { patchDatabaseBlockConfigService } from '@affine/core/blocksuite/extensions/database-block-config-service';
 import { patchDocModeService } from '@affine/core/blocksuite/extensions/doc-mode-service';
 import { patchDocUrlExtensions } from '@affine/core/blocksuite/extensions/doc-url';
-import { EdgelessClipboardAIChatConfig } from '@affine/core/blocksuite/extensions/edgeless-clipboard';
 import { patchForClipboardInElectron } from '@affine/core/blocksuite/extensions/electron-clipboard';
 import { patchNotificationService } from '@affine/core/blocksuite/extensions/notification-service';
 import { patchOpenDocExtension } from '@affine/core/blocksuite/extensions/open-doc';
@@ -29,13 +28,6 @@ import { FrameworkProvider } from '@toeverything/infra';
 import type { TemplateResult } from 'lit';
 import { z } from 'zod';
 
-import {
-  KeyboardToolbarExtension,
-  mobileCodeConfig,
-  mobileParagraphConfig,
-  MobileSpecsPatches,
-} from '../extensions/mobile-config';
-
 const optionsSchema = z.object({
   // services
   framework: z.instanceof(FrameworkProvider),
@@ -106,7 +98,6 @@ export class AffineEditorViewExtension extends ViewExtensionProvider<AffineEdito
       reactToLit,
       confirmModal,
     } = options;
-    const isMobileEdition = BUILD_CONFIG.isMobileEdition;
     const isElectron = BUILD_CONFIG.isElectron;
 
     const docService = framework.get(DocService);
@@ -119,7 +110,6 @@ export class AffineEditorViewExtension extends ViewExtensionProvider<AffineEdito
       patchReferenceRenderer(reactToLit, referenceRenderer),
       patchNotificationService(confirmModal),
       patchOpenDocExtension(),
-      EdgelessClipboardAIChatConfig,
       patchSideBarService(framework),
       patchDocModeService(docService, docsService, editorService),
     ]);
@@ -129,14 +119,6 @@ export class AffineEditorViewExtension extends ViewExtensionProvider<AffineEdito
       patchDatabaseBlockConfigService(),
       patchForAudioEmbedView(reactToLit),
     ]);
-    if (isMobileEdition) {
-      context.register([
-        KeyboardToolbarExtension(framework),
-        MobileSpecsPatches,
-        mobileParagraphConfig,
-        mobileCodeConfig,
-      ]);
-    }
     if (isElectron) {
       context.register(patchForClipboardInElectron(framework));
     }

packages/frontend/core/src/blocksuite/manager/migrating-store.ts

@@ -22,7 +22,9 @@ class MigratingAffineStoreExtension extends StoreExtensionProvider {
 
 interface Configure {
   init: () => Configure;
+
   featureFlag: (featureFlagService?: FeatureFlagService) => Configure;
+
   value: StoreExtensionManager;
 }
 

packages/frontend/core/src/blocksuite/manager/migrating-view.ts

@@ -7,6 +7,7 @@ import {
 import { AffineEditorConfigViewExtension } from '@affine/core/blocksuite/extensions/editor-config';
 import { createDatabaseOptionsConfig } from '@affine/core/blocksuite/extensions/editor-config/database';
 import { createLinkedWidgetConfig } from '@affine/core/blocksuite/extensions/editor-config/linked';
+import { MobileViewExtension } from '@affine/core/blocksuite/extensions/mobile';
 import { PdfViewExtension } from '@affine/core/blocksuite/extensions/pdf';
 import { AffineThemeViewExtension } from '@affine/core/blocksuite/extensions/theme';
 import { TurboRendererViewExtension } from '@affine/core/blocksuite/extensions/turbo-renderer';
@@ -24,6 +25,25 @@ import type { FrameworkProvider } from '@toeverything/infra';
 
 import { CodeBlockPreviewViewExtension } from './code-block-preview';
 
+type Configure = {
+  init: () => Configure;
+
+  common: (framework?: FrameworkProvider, enableAI?: boolean) => Configure;
+  editorView: (options?: AffineEditorViewOptions) => Configure;
+  theme: (framework?: FrameworkProvider) => Configure;
+  editorConfig: (framework?: FrameworkProvider) => Configure;
+  edgelessBlockHeader: (options?: EdgelessBlockHeaderViewOptions) => Configure;
+  database: (framework?: FrameworkProvider) => Configure;
+  linkedDoc: (framework?: FrameworkProvider) => Configure;
+  paragraph: (enableAI?: boolean) => Configure;
+  cloud: (framework?: FrameworkProvider, enableCloud?: boolean) => Configure;
+  turboRenderer: (enableTurboRenderer?: boolean) => Configure;
+  pdf: (enablePDFEmbedPreview?: boolean, reactToLit?: ReactToLit) => Configure;
+  mobile: (framework?: FrameworkProvider) => Configure;
+
+  value: ViewExtensionManager;
+};
+
 class ViewProvider {
   static instance: ViewProvider | null = null;
   static getInstance() {
@@ -48,6 +68,7 @@ class ViewProvider {
       TurboRendererViewExtension,
       CloudViewExtension,
       PdfViewExtension,
+      MobileViewExtension,
     ]);
   }
 
@@ -55,7 +76,7 @@ class ViewProvider {
     return this._manager;
   }
 
-  get config() {
+  get config(): Configure {
     return {
       init: this._initDefaultConfig,
       common: this._configureCommon,
@@ -69,6 +90,7 @@ class ViewProvider {
       cloud: this._configureCloud,
       turboRenderer: this._configureTurboRenderer,
       pdf: this._configurePdf,
+      mobile: this._configureMobile,
       value: this._manager,
     };
   }
@@ -85,7 +107,8 @@ class ViewProvider {
       .paragraph()
       .cloud()
       .turboRenderer()
-      .pdf();
+      .pdf()
+      .mobile();
 
     return this.config;
   };
@@ -146,7 +169,23 @@ class ViewProvider {
   };
 
   private readonly _configureParagraph = (enableAI?: boolean) => {
-    if (enableAI) {
+    if (BUILD_CONFIG.isMobileEdition) {
+      this._manager.configure(ParagraphViewExtension, {
+        getPlaceholder: model => {
+          const placeholders = {
+            text: '',
+            h1: 'Heading 1',
+            h2: 'Heading 2',
+            h3: 'Heading 3',
+            h4: 'Heading 4',
+            h5: 'Heading 5',
+            h6: 'Heading 6',
+            quote: '',
+          };
+          return placeholders[model.props.type] ?? '';
+        },
+      });
+    } else if (enableAI) {
       this._manager.configure(ParagraphViewExtension, {
         getPlaceholder: model => {
           const placeholders = {
@@ -193,6 +232,11 @@ class ViewProvider {
     });
     return this.config;
   };
+
+  private readonly _configureMobile = (framework?: FrameworkProvider) => {
+    this._manager.configure(MobileViewExtension, { framework });
+    return this.config;
+  };
 }
 
 export function getViewManager() {