chore(editor): remove page block feature flag (#10251)

blocksuite/affine/block-note/src/components/edgeless-note-background.ts

@@ -36,7 +36,6 @@ import { property } from 'lit/decorators.js';
 import { styleMap } from 'lit/directives/style-map.js';
 
 import { NoteConfigExtension } from '../config';
-import { isPageBlock } from '../utils';
 import * as styles from './edgeless-note-background.css';
 
 @requiredProperties({
@@ -162,7 +161,7 @@ export class EdgelessNoteBackground extends SignalWatcher(
       @pointerdown=${stopPropagation}
       @click=${this._handleClickAtBackground}
     >
-      ${isPageBlock(this.std, this.note) ? this._renderHeader() : nothing}
+      ${this.note.isPageBlock() ? this._renderHeader() : nothing}
     </div>`;
   }
 

blocksuite/affine/block-note/src/components/edgeless-page-block-title.ts

@@ -12,7 +12,6 @@ import { html } from 'lit';
 import { property } from 'lit/decorators.js';
 
 import { NoteConfigExtension } from '../config';
-import { isPageBlock } from '../utils';
 import * as styles from './edgeless-page-block-title.css';
 
 @requiredProperties({
@@ -22,7 +21,7 @@ export class EdgelessPageBlockTitle extends SignalWatcher(
   WithDisposable(ShadowlessElement)
 ) {
   override render() {
-    if (!isPageBlock(this.std, this.note)) return;
+    if (!this.note.isPageBlock()) return;
 
     const title = this.std
       .getOptional(NoteConfigExtension.identifier)

blocksuite/affine/block-note/src/index.ts

@@ -6,4 +6,3 @@ export * from './note-block';
 export * from './note-edgeless-block';
 export * from './note-service';
 export * from './note-spec';
-export { isPageBlock } from './utils';

blocksuite/affine/block-note/src/note-edgeless-block.ts

@@ -12,10 +12,10 @@ import { ifDefined } from 'lit/directives/if-defined.js';
 import { styleMap } from 'lit/directives/style-map.js';
 
 import { MoreIndicator } from './components/more-indicator';
+import { NoteConfigExtension } from './config';
 import { NoteBlockComponent } from './note-block';
 import { ACTIVE_NOTE_EXTRA_PADDING } from './note-edgeless-block.css';
 import * as styles from './note-edgeless-block.css';
-import { isPageBlock } from './utils';
 
 export const AFFINE_EDGELESS_NOTE = 'affine-edgeless-note';
 
@@ -219,6 +219,9 @@ export class EdgelessNoteBlockComponent extends toGfxBlockComponent(
       ? this._noteFullHeight < height
       : !!collapsedHeight && collapsedHeight < height;
 
+    const hasHeader = !!this.std.getOptional(NoteConfigExtension.identifier)
+      ?.edgelessNoteHeader;
+
     return html`
       <div
         class=${styles.edgelessNoteContainer}
@@ -260,7 +263,7 @@ export class EdgelessNoteBlockComponent extends toGfxBlockComponent(
           .editing=${this._editing}
         ></edgeless-note-mask>
 
-        ${isCollapsable && !isPageBlock(this.std, this.model)
+        ${isCollapsable && (!this.model.isPageBlock() || !hasHeader)
           ? html`<div
               class="${classMap({
                 [styles.collapseButton]: true,

blocksuite/affine/block-note/src/utils.ts

@@ -1,18 +0,0 @@
-import { NoteBlockModel, NoteDisplayMode } from '@blocksuite/affine-model';
-import { FeatureFlagService } from '@blocksuite/affine-shared/services';
-import { matchModels } from '@blocksuite/affine-shared/utils';
-import type { BlockStdScope } from '@blocksuite/block-std';
-
-/**
- * We define a note block as a page block if it is the first visible note
- */
-export function isPageBlock(std: BlockStdScope, note: NoteBlockModel) {
-  return (
-    std.get(FeatureFlagService).getFlag('enable_page_block') &&
-    note.parent?.children.find(
-      child =>
-        matchModels(child, [NoteBlockModel]) &&
-        child.displayMode !== NoteDisplayMode.EdgelessOnly
-    ) === note
-  );
-}