chore: merge blocksuite source code (#9213)

blocksuite/affine/model/src/blocks/attachment/attachment-model.ts

@@ -0,0 +1,101 @@
+import type {
+  GfxCommonBlockProps,
+  GfxElementGeometry,
+} from '@blocksuite/block-std/gfx';
+import { GfxCompatible } from '@blocksuite/block-std/gfx';
+import { BlockModel, defineBlockSchema } from '@blocksuite/store';
+
+import type { EmbedCardStyle } from '../../utils/index.js';
+import { AttachmentBlockTransformer } from './attachment-transformer.js';
+
+/**
+ * When the attachment is uploading, the `sourceId` is `undefined`.
+ * And we can query the upload status by the `isAttachmentLoading` function.
+ *
+ * Other collaborators will see an error attachment block when the blob has not finished uploading.
+ * This issue can be resolve by sync the upload status through the awareness system in the future.
+ *
+ * When the attachment is uploaded, the `sourceId` is the id of the blob.
+ *
+ * If there are no `sourceId` and the `isAttachmentLoading` function returns `false`,
+ * it means that the attachment is failed to upload.
+ */
+
+/**
+ * @deprecated
+ */
+type BackwardCompatibleUndefined = undefined;
+
+export const AttachmentBlockStyles: EmbedCardStyle[] = [
+  'cubeThick',
+  'horizontalThin',
+  'pdf',
+] as const;
+
+export type AttachmentBlockProps = {
+  name: string;
+  size: number;
+  /**
+   * MIME type
+   */
+  type: string;
+  caption?: string;
+  // `loadingKey` was used to indicate whether the attachment is loading,
+  // which is currently unused but no breaking change is needed.
+  // The `loadingKey` and `sourceId` should not be existed at the same time.
+  // loadingKey?: string | null;
+  sourceId?: string;
+  /**
+   * Whether to show the attachment as an embed view.
+   */
+  embed: boolean | BackwardCompatibleUndefined;
+
+  style?: (typeof AttachmentBlockStyles)[number];
+} & Omit<GfxCommonBlockProps, 'scale'>;
+
+export const defaultAttachmentProps: AttachmentBlockProps = {
+  name: '',
+  size: 0,
+  type: 'application/octet-stream',
+  sourceId: undefined,
+  caption: undefined,
+  embed: false,
+  style: AttachmentBlockStyles[1],
+  index: 'a0',
+  xywh: '[0,0,0,0]',
+  lockedBySelf: false,
+  rotate: 0,
+};
+
+export const AttachmentBlockSchema = defineBlockSchema({
+  flavour: 'affine:attachment',
+  props: (): AttachmentBlockProps => defaultAttachmentProps,
+  metadata: {
+    version: 1,
+    role: 'content',
+    parent: [
+      'affine:note',
+      'affine:surface',
+      'affine:edgeless-text',
+      'affine:paragraph',
+      'affine:list',
+    ],
+  },
+  transformer: () => new AttachmentBlockTransformer(),
+  toModel: () => new AttachmentBlockModel(),
+});
+
+export class AttachmentBlockModel
+  extends GfxCompatible<AttachmentBlockProps>(BlockModel)
+  implements GfxElementGeometry {}
+
+declare global {
+  namespace BlockSuite {
+    interface EdgelessBlockModelMap {
+      'affine:attachment': AttachmentBlockModel;
+    }
+    interface BlockModels {
+      'affine:attachment': AttachmentBlockModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/attachment/attachment-transformer.ts

@@ -0,0 +1,17 @@
+import type { FromSnapshotPayload, SnapshotNode } from '@blocksuite/store';
+import { BaseBlockTransformer } from '@blocksuite/store';
+
+import type { AttachmentBlockProps } from './attachment-model.js';
+
+export class AttachmentBlockTransformer extends BaseBlockTransformer<AttachmentBlockProps> {
+  override async fromSnapshot(
+    payload: FromSnapshotPayload
+  ): Promise<SnapshotNode<AttachmentBlockProps>> {
+    const snapshotRet = await super.fromSnapshot(payload);
+    const sourceId = snapshotRet.props.sourceId;
+    if (!payload.assets.isEmpty() && sourceId)
+      await payload.assets.writeToBlob(sourceId);
+
+    return snapshotRet;
+  }
+}

blocksuite/affine/model/src/blocks/attachment/index.ts

@@ -0,0 +1,2 @@
+export * from './attachment-model.js';
+export * from './attachment-transformer.js';

blocksuite/affine/model/src/blocks/bookmark/bookmark-model.ts

@@ -0,0 +1,70 @@
+import type {
+  GfxCommonBlockProps,
+  GfxElementGeometry,
+} from '@blocksuite/block-std/gfx';
+import { GfxCompatible } from '@blocksuite/block-std/gfx';
+import { BlockModel, defineBlockSchema } from '@blocksuite/store';
+
+import type { EmbedCardStyle, LinkPreviewData } from '../../utils/index.js';
+
+export const BookmarkStyles: EmbedCardStyle[] = [
+  'vertical',
+  'horizontal',
+  'list',
+  'cube',
+] as const;
+
+export type BookmarkBlockProps = {
+  style: (typeof BookmarkStyles)[number];
+  url: string;
+  caption: string | null;
+} & LinkPreviewData &
+  Omit<GfxCommonBlockProps, 'scale'>;
+
+const defaultBookmarkProps: BookmarkBlockProps = {
+  style: BookmarkStyles[1],
+  url: '',
+  caption: null,
+
+  description: null,
+  icon: null,
+  image: null,
+  title: null,
+
+  index: 'a0',
+  xywh: '[0,0,0,0]',
+  lockedBySelf: false,
+  rotate: 0,
+};
+
+export const BookmarkBlockSchema = defineBlockSchema({
+  flavour: 'affine:bookmark',
+  props: (): BookmarkBlockProps => defaultBookmarkProps,
+  metadata: {
+    version: 1,
+    role: 'content',
+    parent: [
+      'affine:note',
+      'affine:surface',
+      'affine:edgeless-text',
+      'affine:paragraph',
+      'affine:list',
+    ],
+  },
+  toModel: () => new BookmarkBlockModel(),
+});
+
+export class BookmarkBlockModel
+  extends GfxCompatible<BookmarkBlockProps>(BlockModel)
+  implements GfxElementGeometry {}
+
+declare global {
+  namespace BlockSuite {
+    interface EdgelessBlockModelMap {
+      'affine:bookmark': BookmarkBlockModel;
+    }
+    interface BlockModels {
+      'affine:bookmark': BookmarkBlockModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/bookmark/index.ts

@@ -0,0 +1 @@
+export * from './bookmark-model.js';

blocksuite/affine/model/src/blocks/code/code-model.ts

@@ -0,0 +1,44 @@
+import {
+  defineBlockSchema,
+  type SchemaToModel,
+  type Text,
+} from '@blocksuite/store';
+
+interface CodeBlockProps {
+  text: Text;
+  language: string | null;
+  wrap: boolean;
+  caption: string;
+}
+
+export const CodeBlockSchema = defineBlockSchema({
+  flavour: 'affine:code',
+  props: internal =>
+    ({
+      text: internal.Text(),
+      language: null,
+      wrap: false,
+      caption: '',
+    }) as CodeBlockProps,
+  metadata: {
+    version: 1,
+    role: 'content',
+    parent: [
+      'affine:note',
+      'affine:paragraph',
+      'affine:list',
+      'affine:edgeless-text',
+    ],
+    children: [],
+  },
+});
+
+export type CodeBlockModel = SchemaToModel<typeof CodeBlockSchema>;
+
+declare global {
+  namespace BlockSuite {
+    interface BlockModels {
+      'affine:code': CodeBlockModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/code/index.ts

@@ -0,0 +1 @@
+export * from './code-model.js';

blocksuite/affine/model/src/blocks/database/database-model.ts

@@ -0,0 +1,30 @@
+import type { Text } from '@blocksuite/store';
+import { BlockModel, defineBlockSchema } from '@blocksuite/store';
+
+import type { Column, SerializedCells, ViewBasicDataType } from './types.js';
+
+export type DatabaseBlockProps = {
+  views: ViewBasicDataType[];
+  title: Text;
+  cells: SerializedCells;
+  columns: Array<Column>;
+};
+
+export class DatabaseBlockModel extends BlockModel<DatabaseBlockProps> {}
+
+export const DatabaseBlockSchema = defineBlockSchema({
+  flavour: 'affine:database',
+  props: (internal): DatabaseBlockProps => ({
+    views: [],
+    title: internal.Text(),
+    cells: Object.create(null),
+    columns: [],
+  }),
+  metadata: {
+    role: 'hub',
+    version: 3,
+    parent: ['affine:note'],
+    children: ['affine:paragraph', 'affine:list'],
+  },
+  toModel: () => new DatabaseBlockModel(),
+});

blocksuite/affine/model/src/blocks/database/index.ts

@@ -0,0 +1,2 @@
+export * from './database-model.js';
+export * from './types.js';

blocksuite/affine/model/src/blocks/database/types.ts

@@ -0,0 +1,21 @@
+export interface Column<
+  Data extends Record<string, unknown> = Record<string, unknown>,
+> {
+  id: string;
+  type: string;
+  name: string;
+  data: Data;
+}
+
+export type ColumnUpdater<T extends Column = Column> = (data: T) => Partial<T>;
+export type Cell<ValueType = unknown> = {
+  columnId: Column['id'];
+  value: ValueType;
+};
+
+export type SerializedCells = Record<string, Record<string, Cell>>;
+export type ViewBasicDataType = {
+  id: string;
+  name: string;
+  mode: string;
+};

blocksuite/affine/model/src/blocks/divider/divider-model.ts

@@ -0,0 +1,20 @@
+import { defineBlockSchema, type SchemaToModel } from '@blocksuite/store';
+
+export const DividerBlockSchema = defineBlockSchema({
+  flavour: 'affine:divider',
+  metadata: {
+    version: 1,
+    role: 'content',
+    children: [],
+  },
+});
+
+export type DividerBlockModel = SchemaToModel<typeof DividerBlockSchema>;
+
+declare global {
+  namespace BlockSuite {
+    interface BlockModels {
+      'affine:divider': DividerBlockModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/divider/index.ts

@@ -0,0 +1 @@
+export * from './divider-model.js';

blocksuite/affine/model/src/blocks/edgeless-text/edgeless-text-model.ts

@@ -0,0 +1,74 @@
+import type {
+  GfxCommonBlockProps,
+  GfxElementGeometry,
+} from '@blocksuite/block-std/gfx';
+import { GfxCompatible } from '@blocksuite/block-std/gfx';
+import { BlockModel, defineBlockSchema } from '@blocksuite/store';
+
+import {
+  FontFamily,
+  FontStyle,
+  FontWeight,
+  TextAlign,
+  type TextStyleProps,
+} from '../../consts/index.js';
+
+type EdgelessTextProps = {
+  hasMaxWidth: boolean;
+} & Omit<TextStyleProps, 'fontSize'> &
+  GfxCommonBlockProps;
+
+export const EdgelessTextBlockSchema = defineBlockSchema({
+  flavour: 'affine:edgeless-text',
+  props: (): EdgelessTextProps => ({
+    xywh: '[0,0,16,16]',
+    index: 'a0',
+    lockedBySelf: false,
+    color: '#000000',
+    fontFamily: FontFamily.Inter,
+    fontStyle: FontStyle.Normal,
+    fontWeight: FontWeight.Regular,
+    textAlign: TextAlign.Left,
+    scale: 1,
+    rotate: 0,
+    hasMaxWidth: false,
+  }),
+  metadata: {
+    version: 1,
+    role: 'hub',
+    parent: ['affine:surface'],
+    children: [
+      'affine:paragraph',
+      'affine:list',
+      'affine:code',
+      'affine:image',
+      'affine:bookmark',
+      'affine:attachment',
+      'affine:embed-!(synced-doc)',
+      'affine:latex',
+    ],
+  },
+  toModel: () => {
+    return new EdgelessTextBlockModel();
+  },
+});
+
+export class EdgelessTextBlockModel
+  extends GfxCompatible<EdgelessTextProps>(BlockModel)
+  implements GfxElementGeometry {}
+
+declare global {
+  namespace BlockSuite {
+    interface BlockModels {
+      'affine:edgeless-text': EdgelessTextBlockModel;
+    }
+
+    interface EdgelessBlockModelMap {
+      'affine:edgeless-text': EdgelessTextBlockModel;
+    }
+
+    interface EdgelessTextModelMap {
+      'edgeless-text': EdgelessTextBlockModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/edgeless-text/index.ts

@@ -0,0 +1 @@
+export * from './edgeless-text-model.js';

blocksuite/affine/model/src/blocks/embed/figma/figma-model.ts

@@ -0,0 +1,32 @@
+import { BlockModel } from '@blocksuite/store';
+
+import type { EmbedCardStyle } from '../../../utils/index.js';
+import { defineEmbedModel } from '../../../utils/index.js';
+
+export type EmbedFigmaBlockUrlData = {
+  title: string | null;
+  description: string | null;
+};
+
+export const EmbedFigmaStyles: EmbedCardStyle[] = ['figma'] as const;
+
+export type EmbedFigmaBlockProps = {
+  style: (typeof EmbedFigmaStyles)[number];
+  url: string;
+  caption: string | null;
+} & EmbedFigmaBlockUrlData;
+
+export class EmbedFigmaModel extends defineEmbedModel<EmbedFigmaBlockProps>(
+  BlockModel
+) {}
+
+declare global {
+  namespace BlockSuite {
+    interface EdgelessBlockModelMap {
+      'affine:embed-figma': EmbedFigmaModel;
+    }
+    interface BlockModels {
+      'affine:embed-figma': EmbedFigmaModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/embed/figma/figma-schema.ts

@@ -0,0 +1,22 @@
+import { createEmbedBlockSchema } from '../../../utils/index.js';
+import {
+  type EmbedFigmaBlockProps,
+  EmbedFigmaModel,
+  EmbedFigmaStyles,
+} from './figma-model.js';
+
+const defaultEmbedFigmaProps: EmbedFigmaBlockProps = {
+  style: EmbedFigmaStyles[0],
+  url: '',
+  caption: null,
+
+  title: null,
+  description: null,
+};
+
+export const EmbedFigmaBlockSchema = createEmbedBlockSchema({
+  name: 'figma',
+  version: 1,
+  toModel: () => new EmbedFigmaModel(),
+  props: (): EmbedFigmaBlockProps => defaultEmbedFigmaProps,
+});

blocksuite/affine/model/src/blocks/embed/figma/index.ts

@@ -0,0 +1,2 @@
+export * from './figma-model.js';
+export * from './figma-schema.js';

blocksuite/affine/model/src/blocks/embed/github/github-model.ts

@@ -0,0 +1,46 @@
+import { BlockModel } from '@blocksuite/store';
+
+import type { EmbedCardStyle } from '../../../utils/index.js';
+import { defineEmbedModel } from '../../../utils/index.js';
+
+export type EmbedGithubBlockUrlData = {
+  image: string | null;
+  status: string | null;
+  statusReason: string | null;
+  title: string | null;
+  description: string | null;
+  createdAt: string | null;
+  assignees: string[] | null;
+};
+
+export const EmbedGithubStyles: EmbedCardStyle[] = [
+  'vertical',
+  'horizontal',
+  'list',
+  'cube',
+] as const;
+
+export type EmbedGithubBlockProps = {
+  style: (typeof EmbedGithubStyles)[number];
+  owner: string;
+  repo: string;
+  githubType: 'issue' | 'pr';
+  githubId: string;
+  url: string;
+  caption: string | null;
+} & EmbedGithubBlockUrlData;
+
+export class EmbedGithubModel extends defineEmbedModel<EmbedGithubBlockProps>(
+  BlockModel
+) {}
+
+declare global {
+  namespace BlockSuite {
+    interface EdgelessBlockModelMap {
+      'affine:embed-github': EmbedGithubModel;
+    }
+    interface BlockModels {
+      'affine:embed-github': EmbedGithubModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/embed/github/github-schema.ts

@@ -0,0 +1,31 @@
+import { createEmbedBlockSchema } from '../../../utils/index.js';
+import {
+  type EmbedGithubBlockProps,
+  EmbedGithubModel,
+  EmbedGithubStyles,
+} from './github-model.js';
+
+const defaultEmbedGithubProps: EmbedGithubBlockProps = {
+  style: EmbedGithubStyles[1],
+  owner: '',
+  repo: '',
+  githubType: 'issue',
+  githubId: '',
+  url: '',
+  caption: null,
+
+  image: null,
+  status: null,
+  statusReason: null,
+  title: null,
+  description: null,
+  createdAt: null,
+  assignees: null,
+};
+
+export const EmbedGithubBlockSchema = createEmbedBlockSchema({
+  name: 'github',
+  version: 1,
+  toModel: () => new EmbedGithubModel(),
+  props: (): EmbedGithubBlockProps => defaultEmbedGithubProps,
+});

blocksuite/affine/model/src/blocks/embed/github/index.ts

@@ -0,0 +1,2 @@
+export * from './github-model.js';
+export * from './github-schema.js';

blocksuite/affine/model/src/blocks/embed/html/html-model.ts

@@ -0,0 +1,28 @@
+import { BlockModel } from '@blocksuite/store';
+
+import type { EmbedCardStyle } from '../../../utils/index.js';
+import { defineEmbedModel } from '../../../utils/index.js';
+
+export const EmbedHtmlStyles: EmbedCardStyle[] = ['html'] as const;
+
+export type EmbedHtmlBlockProps = {
+  style: (typeof EmbedHtmlStyles)[number];
+  caption: string | null;
+  html?: string;
+  design?: string;
+};
+
+export class EmbedHtmlModel extends defineEmbedModel<EmbedHtmlBlockProps>(
+  BlockModel
+) {}
+
+declare global {
+  namespace BlockSuite {
+    interface EdgelessBlockModelMap {
+      'affine:embed-html': EmbedHtmlModel;
+    }
+    interface BlockModels {
+      'affine:embed-html': EmbedHtmlModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/embed/html/html-schema.ts

@@ -0,0 +1,20 @@
+import { createEmbedBlockSchema } from '../../../utils/index.js';
+import {
+  type EmbedHtmlBlockProps,
+  EmbedHtmlModel,
+  EmbedHtmlStyles,
+} from './html-model.js';
+
+const defaultEmbedHtmlProps: EmbedHtmlBlockProps = {
+  style: EmbedHtmlStyles[0],
+  caption: null,
+  html: undefined,
+  design: undefined,
+};
+
+export const EmbedHtmlBlockSchema = createEmbedBlockSchema({
+  name: 'html',
+  version: 1,
+  toModel: () => new EmbedHtmlModel(),
+  props: (): EmbedHtmlBlockProps => defaultEmbedHtmlProps,
+});

blocksuite/affine/model/src/blocks/embed/html/index.ts

@@ -0,0 +1,2 @@
+export * from './html-model.js';
+export * from './html-schema.js';

blocksuite/affine/model/src/blocks/embed/index.ts

@@ -0,0 +1,7 @@
+export * from './figma/index.js';
+export * from './github/index.js';
+export * from './html/index.js';
+export * from './linked-doc/index.js';
+export * from './loom/index.js';
+export * from './synced-doc/index.js';
+export * from './youtube/index.js';

blocksuite/affine/model/src/blocks/embed/linked-doc/index.ts

@@ -0,0 +1,2 @@
+export * from './linked-doc-model.js';
+export * from './linked-doc-schema.js';

blocksuite/affine/model/src/blocks/embed/linked-doc/linked-doc-model.ts

@@ -0,0 +1,33 @@
+import { BlockModel } from '@blocksuite/store';
+
+import type { ReferenceInfo } from '../../../consts/doc.js';
+import type { EmbedCardStyle } from '../../../utils/index.js';
+import { defineEmbedModel } from '../../../utils/index.js';
+
+export const EmbedLinkedDocStyles: EmbedCardStyle[] = [
+  'vertical',
+  'horizontal',
+  'list',
+  'cube',
+  'horizontalThin',
+];
+
+export type EmbedLinkedDocBlockProps = {
+  style: EmbedCardStyle;
+  caption: string | null;
+} & ReferenceInfo;
+
+export class EmbedLinkedDocModel extends defineEmbedModel<EmbedLinkedDocBlockProps>(
+  BlockModel
+) {}
+
+declare global {
+  namespace BlockSuite {
+    interface EdgelessBlockModelMap {
+      'affine:embed-linked-doc': EmbedLinkedDocModel;
+    }
+    interface BlockModels {
+      'affine:embed-linked-doc': EmbedLinkedDocModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/embed/linked-doc/linked-doc-schema.ts

@@ -0,0 +1,22 @@
+import { createEmbedBlockSchema } from '../../../utils/index.js';
+import {
+  type EmbedLinkedDocBlockProps,
+  EmbedLinkedDocModel,
+  EmbedLinkedDocStyles,
+} from './linked-doc-model.js';
+
+const defaultEmbedLinkedDocBlockProps: EmbedLinkedDocBlockProps = {
+  pageId: '',
+  style: EmbedLinkedDocStyles[1],
+  caption: null,
+  // title & description aliases
+  title: undefined,
+  description: undefined,
+};
+
+export const EmbedLinkedDocBlockSchema = createEmbedBlockSchema({
+  name: 'linked-doc',
+  version: 1,
+  toModel: () => new EmbedLinkedDocModel(),
+  props: (): EmbedLinkedDocBlockProps => defaultEmbedLinkedDocBlockProps,
+});

blocksuite/affine/model/src/blocks/embed/loom/index.ts

@@ -0,0 +1,2 @@
+export * from './loom-model.js';
+export * from './loom-schema.js';

blocksuite/affine/model/src/blocks/embed/loom/loom-model.ts

@@ -0,0 +1,34 @@
+import { BlockModel } from '@blocksuite/store';
+
+import type { EmbedCardStyle } from '../../../utils/index.js';
+import { defineEmbedModel } from '../../../utils/index.js';
+
+export type EmbedLoomBlockUrlData = {
+  videoId: string | null;
+  image: string | null;
+  title: string | null;
+  description: string | null;
+};
+
+export const EmbedLoomStyles: EmbedCardStyle[] = ['video'] as const;
+
+export type EmbedLoomBlockProps = {
+  style: (typeof EmbedLoomStyles)[number];
+  url: string;
+  caption: string | null;
+} & EmbedLoomBlockUrlData;
+
+export class EmbedLoomModel extends defineEmbedModel<EmbedLoomBlockProps>(
+  BlockModel
+) {}
+
+declare global {
+  namespace BlockSuite {
+    interface EdgelessBlockModelMap {
+      'affine:embed-loom': EmbedLoomModel;
+    }
+    interface BlockModels {
+      'affine:embed-loom': EmbedLoomModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/embed/loom/loom-schema.ts

@@ -0,0 +1,24 @@
+import { createEmbedBlockSchema } from '../../../utils/index.js';
+import {
+  type EmbedLoomBlockProps,
+  EmbedLoomModel,
+  EmbedLoomStyles,
+} from './loom-model.js';
+
+const defaultEmbedLoomProps: EmbedLoomBlockProps = {
+  style: EmbedLoomStyles[0],
+  url: '',
+  caption: null,
+
+  image: null,
+  title: null,
+  description: null,
+  videoId: null,
+};
+
+export const EmbedLoomBlockSchema = createEmbedBlockSchema({
+  name: 'loom',
+  version: 1,
+  toModel: () => new EmbedLoomModel(),
+  props: (): EmbedLoomBlockProps => defaultEmbedLoomProps,
+});

blocksuite/affine/model/src/blocks/embed/synced-doc/index.ts

@@ -0,0 +1,2 @@
+export * from './synced-doc-model.js';
+export * from './synced-doc-schema.js';

blocksuite/affine/model/src/blocks/embed/synced-doc/synced-doc-model.ts

@@ -0,0 +1,28 @@
+import { BlockModel } from '@blocksuite/store';
+
+import type { ReferenceInfo } from '../../../consts/doc.js';
+import type { EmbedCardStyle } from '../../../utils/index.js';
+import { defineEmbedModel } from '../../../utils/index.js';
+
+export const EmbedSyncedDocStyles: EmbedCardStyle[] = ['syncedDoc'];
+
+export type EmbedSyncedDocBlockProps = {
+  style: EmbedCardStyle;
+  caption?: string | null;
+  scale?: number;
+} & ReferenceInfo;
+
+export class EmbedSyncedDocModel extends defineEmbedModel<EmbedSyncedDocBlockProps>(
+  BlockModel
+) {}
+
+declare global {
+  namespace BlockSuite {
+    interface EdgelessBlockModelMap {
+      'affine:embed-synced-doc': EmbedSyncedDocModel;
+    }
+    interface BlockModels {
+      'affine:embed-synced-doc': EmbedSyncedDocModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/embed/synced-doc/synced-doc-schema.ts

@@ -0,0 +1,23 @@
+import { createEmbedBlockSchema } from '../../../utils/index.js';
+import {
+  type EmbedSyncedDocBlockProps,
+  EmbedSyncedDocModel,
+  EmbedSyncedDocStyles,
+} from './synced-doc-model.js';
+
+export const defaultEmbedSyncedDocBlockProps: EmbedSyncedDocBlockProps = {
+  pageId: '',
+  style: EmbedSyncedDocStyles[0],
+  caption: undefined,
+  scale: undefined,
+  // title & description aliases
+  title: undefined,
+  description: undefined,
+};
+
+export const EmbedSyncedDocBlockSchema = createEmbedBlockSchema({
+  name: 'synced-doc',
+  version: 1,
+  toModel: () => new EmbedSyncedDocModel(),
+  props: (): EmbedSyncedDocBlockProps => defaultEmbedSyncedDocBlockProps,
+});

blocksuite/affine/model/src/blocks/embed/youtube/index.ts

@@ -0,0 +1,2 @@
+export * from './youtube-model.js';
+export * from './youtube-schema.js';

blocksuite/affine/model/src/blocks/embed/youtube/youtube-model.ts

@@ -0,0 +1,37 @@
+import { BlockModel } from '@blocksuite/store';
+
+import type { EmbedCardStyle } from '../../../utils/index.js';
+import { defineEmbedModel } from '../../../utils/index.js';
+
+export type EmbedYoutubeBlockUrlData = {
+  videoId: string | null;
+  image: string | null;
+  title: string | null;
+  description: string | null;
+  creator: string | null;
+  creatorUrl: string | null;
+  creatorImage: string | null;
+};
+
+export const EmbedYoutubeStyles: EmbedCardStyle[] = ['video'] as const;
+
+export type EmbedYoutubeBlockProps = {
+  style: (typeof EmbedYoutubeStyles)[number];
+  url: string;
+  caption: string | null;
+} & EmbedYoutubeBlockUrlData;
+
+export class EmbedYoutubeModel extends defineEmbedModel<EmbedYoutubeBlockProps>(
+  BlockModel
+) {}
+
+declare global {
+  namespace BlockSuite {
+    interface EdgelessBlockModelMap {
+      'affine:embed-youtube': EmbedYoutubeModel;
+    }
+    interface BlockModels {
+      'affine:embed-youtube': EmbedYoutubeModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/embed/youtube/youtube-schema.ts

@@ -0,0 +1,27 @@
+import { createEmbedBlockSchema } from '../../../utils/index.js';
+import {
+  type EmbedYoutubeBlockProps,
+  EmbedYoutubeModel,
+  EmbedYoutubeStyles,
+} from './youtube-model.js';
+
+const defaultEmbedYoutubeProps: EmbedYoutubeBlockProps = {
+  style: EmbedYoutubeStyles[0],
+  url: '',
+  caption: null,
+
+  image: null,
+  title: null,
+  description: null,
+  creator: null,
+  creatorUrl: null,
+  creatorImage: null,
+  videoId: null,
+};
+
+export const EmbedYoutubeBlockSchema = createEmbedBlockSchema({
+  name: 'youtube',
+  version: 1,
+  toModel: () => new EmbedYoutubeModel(),
+  props: (): EmbedYoutubeBlockProps => defaultEmbedYoutubeProps,
+});

blocksuite/affine/model/src/blocks/frame/frame-model.ts

@@ -0,0 +1,148 @@
+import type {
+  GfxBlockElementModel,
+  GfxCompatibleProps,
+  GfxElementGeometry,
+  GfxGroupCompatibleInterface,
+  GfxModel,
+  PointTestOptions,
+} from '@blocksuite/block-std/gfx';
+import {
+  canSafeAddToContainer,
+  descendantElementsImpl,
+  generateKeyBetweenV2,
+  GfxCompatible,
+  gfxGroupCompatibleSymbol,
+  hasDescendantElementImpl,
+} from '@blocksuite/block-std/gfx';
+import { Bound } from '@blocksuite/global/utils';
+import { BlockModel, defineBlockSchema, type Text } from '@blocksuite/store';
+
+import type { Color } from '../../consts/index.js';
+
+export type FrameBlockProps = {
+  title: Text;
+  background: Color;
+  childElementIds?: Record<string, boolean>;
+  presentationIndex?: string;
+} & GfxCompatibleProps;
+
+export const FrameBlockSchema = defineBlockSchema({
+  flavour: 'affine:frame',
+  props: (internal): FrameBlockProps => ({
+    title: internal.Text(),
+    background: '--affine-palette-transparent',
+    xywh: `[0,0,100,100]`,
+    index: 'a0',
+    childElementIds: Object.create(null),
+    presentationIndex: generateKeyBetweenV2(null, null),
+    lockedBySelf: false,
+  }),
+  metadata: {
+    version: 1,
+    role: 'content',
+    parent: ['affine:surface'],
+    children: [],
+  },
+  toModel: () => {
+    return new FrameBlockModel();
+  },
+});
+
+export class FrameBlockModel
+  extends GfxCompatible<FrameBlockProps>(BlockModel)
+  implements GfxElementGeometry, GfxGroupCompatibleInterface
+{
+  [gfxGroupCompatibleSymbol] = true as const;
+
+  get childElements() {
+    if (!this.surface) return [];
+
+    const elements: GfxModel[] = [];
+
+    for (const key of this.childIds) {
+      const element =
+        this.surface.getElementById(key) ||
+        (this.surface.doc.getBlockById(key) as GfxBlockElementModel);
+
+      element && elements.push(element);
+    }
+
+    return elements;
+  }
+
+  get childIds() {
+    return this.childElementIds ? Object.keys(this.childElementIds) : [];
+  }
+
+  get descendantElements(): GfxModel[] {
+    return descendantElementsImpl(this);
+  }
+
+  addChild(element: GfxModel) {
+    if (!canSafeAddToContainer(this, element)) return;
+
+    this.doc.transact(() => {
+      this.childElementIds = { ...this.childElementIds, [element.id]: true };
+    });
+  }
+
+  addChildren(elements: GfxModel[]): void {
+    elements = [...new Set(elements)].filter(element =>
+      canSafeAddToContainer(this, element)
+    );
+
+    const newChildren: Record<string, boolean> = {};
+    for (const element of elements) {
+      const id = typeof element === 'string' ? element : element.id;
+      newChildren[id] = true;
+    }
+
+    this.doc.transact(() => {
+      this.childElementIds = {
+        ...this.childElementIds,
+        ...newChildren,
+      };
+    });
+  }
+
+  override containsBound(bound: Bound): boolean {
+    return this.elementBound.contains(bound);
+  }
+
+  hasChild(element: GfxModel): boolean {
+    return this.childElementIds ? element.id in this.childElementIds : false;
+  }
+
+  hasDescendant(element: GfxModel): boolean {
+    return hasDescendantElementImpl(this, element);
+  }
+
+  override includesPoint(x: number, y: number, _: PointTestOptions): boolean {
+    const bound = Bound.deserialize(this.xywh);
+    return bound.isPointInBound([x, y]);
+  }
+
+  override intersectsBound(selectedBound: Bound): boolean {
+    const bound = Bound.deserialize(this.xywh);
+    return (
+      bound.isIntersectWithBound(selectedBound) || selectedBound.contains(bound)
+    );
+  }
+
+  removeChild(element: GfxModel): void {
+    this.doc.transact(() => {
+      this.childElementIds && delete this.childElementIds[element.id];
+    });
+  }
+}
+
+declare global {
+  namespace BlockSuite {
+    interface EdgelessBlockModelMap {
+      'affine:frame': FrameBlockModel;
+    }
+    interface BlockModels {
+      'affine:frame': FrameBlockModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/frame/index.ts

@@ -0,0 +1 @@
+export * from './frame-model.js';

blocksuite/affine/model/src/blocks/image/image-model.ts

@@ -0,0 +1,55 @@
+import type {
+  GfxCommonBlockProps,
+  GfxElementGeometry,
+} from '@blocksuite/block-std/gfx';
+import { GfxCompatible } from '@blocksuite/block-std/gfx';
+import { BlockModel, defineBlockSchema } from '@blocksuite/store';
+
+import { ImageBlockTransformer } from './image-transformer.js';
+
+export type ImageBlockProps = {
+  caption?: string;
+  sourceId?: string;
+  width?: number;
+  height?: number;
+  rotate: number;
+  size?: number;
+} & Omit<GfxCommonBlockProps, 'scale'>;
+
+const defaultImageProps: ImageBlockProps = {
+  caption: '',
+  sourceId: '',
+  width: 0,
+  height: 0,
+  index: 'a0',
+  xywh: '[0,0,0,0]',
+  lockedBySelf: false,
+  rotate: 0,
+  size: -1,
+};
+
+export const ImageBlockSchema = defineBlockSchema({
+  flavour: 'affine:image',
+  props: () => defaultImageProps,
+  metadata: {
+    version: 1,
+    role: 'content',
+  },
+  transformer: () => new ImageBlockTransformer(),
+  toModel: () => new ImageBlockModel(),
+});
+
+export class ImageBlockModel
+  extends GfxCompatible<ImageBlockProps>(BlockModel)
+  implements GfxElementGeometry {}
+
+declare global {
+  namespace BlockSuite {
+    interface BlockModels {
+      'affine:image': ImageBlockModel;
+    }
+    interface EdgelessBlockModelMap {
+      'affine:image': ImageBlockModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/image/image-transformer.ts

@@ -0,0 +1,17 @@
+import type { FromSnapshotPayload, SnapshotNode } from '@blocksuite/store';
+import { BaseBlockTransformer } from '@blocksuite/store';
+
+import type { ImageBlockProps } from './image-model.js';
+
+export class ImageBlockTransformer extends BaseBlockTransformer<ImageBlockProps> {
+  override async fromSnapshot(
+    payload: FromSnapshotPayload
+  ): Promise<SnapshotNode<ImageBlockProps>> {
+    const snapshotRet = await super.fromSnapshot(payload);
+    const sourceId = snapshotRet.props.sourceId;
+    if (!payload.assets.isEmpty() && sourceId && !sourceId.startsWith('/'))
+      await payload.assets.writeToBlob(sourceId);
+
+    return snapshotRet;
+  }
+}

blocksuite/affine/model/src/blocks/image/index.ts

@@ -0,0 +1,2 @@
+export * from './image-model.js';
+export * from './image-transformer.js';

blocksuite/affine/model/src/blocks/index.ts

@@ -0,0 +1,15 @@
+export * from './attachment/index.js';
+export * from './bookmark/index.js';
+export * from './code/index.js';
+export * from './database/index.js';
+export * from './divider/index.js';
+export * from './edgeless-text/index.js';
+export * from './embed/index.js';
+export * from './frame/index.js';
+export * from './image/index.js';
+export * from './latex/index.js';
+export * from './list/index.js';
+export * from './note/index.js';
+export * from './paragraph/index.js';
+export * from './root/index.js';
+export * from './surface-ref/index.js';

blocksuite/affine/model/src/blocks/latex/index.ts

@@ -0,0 +1 @@
+export * from './latex-model.js';

blocksuite/affine/model/src/blocks/latex/latex-model.ts

@@ -0,0 +1,51 @@
+import {
+  type GfxCommonBlockProps,
+  GfxCompatible,
+  type GfxElementGeometry,
+} from '@blocksuite/block-std/gfx';
+import { BlockModel, defineBlockSchema } from '@blocksuite/store';
+
+export type LatexProps = {
+  latex: string;
+} & GfxCommonBlockProps;
+
+export const LatexBlockSchema = defineBlockSchema({
+  flavour: 'affine:latex',
+  props: (): LatexProps => ({
+    xywh: '[0,0,16,16]',
+    index: 'a0',
+    lockedBySelf: false,
+    scale: 1,
+    rotate: 0,
+    latex: '',
+  }),
+  metadata: {
+    version: 1,
+    role: 'content',
+    parent: [
+      'affine:note',
+      'affine:edgeless-text',
+      'affine:paragraph',
+      'affine:list',
+    ],
+  },
+  toModel: () => {
+    return new LatexBlockModel();
+  },
+});
+
+export class LatexBlockModel
+  extends GfxCompatible<LatexProps>(BlockModel)
+  implements GfxElementGeometry {}
+
+declare global {
+  namespace BlockSuite {
+    interface BlockModels {
+      'affine:latex': LatexBlockModel;
+    }
+
+    interface EdgelessBlockModelMap {
+      'affine:latex': LatexBlockModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/list/index.ts

@@ -0,0 +1 @@
+export * from './list-model.js';

blocksuite/affine/model/src/blocks/list/list-model.ts

@@ -0,0 +1,48 @@
+import type { SchemaToModel, Text } from '@blocksuite/store';
+import { defineBlockSchema } from '@blocksuite/store';
+
+// `toggle` type has been deprecated, do not use it
+export type ListType = 'bulleted' | 'numbered' | 'todo' | 'toggle';
+
+export interface ListProps {
+  type: ListType;
+  text: Text;
+  checked: boolean;
+  collapsed: boolean;
+  order: number | null;
+}
+
+export const ListBlockSchema = defineBlockSchema({
+  flavour: 'affine:list',
+  props: internal =>
+    ({
+      type: 'bulleted',
+      text: internal.Text(),
+      checked: false,
+      collapsed: false,
+
+      // number type only for numbered list
+      order: null,
+    }) as ListProps,
+  metadata: {
+    version: 1,
+    role: 'content',
+    parent: [
+      'affine:note',
+      'affine:database',
+      'affine:list',
+      'affine:paragraph',
+      'affine:edgeless-text',
+    ],
+  },
+});
+
+export type ListBlockModel = SchemaToModel<typeof ListBlockSchema>;
+
+declare global {
+  namespace BlockSuite {
+    interface BlockModels {
+      'affine:list': ListBlockModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/note/index.ts

@@ -0,0 +1 @@
+export * from './note-model.js';

blocksuite/affine/model/src/blocks/note/note-model.ts

@@ -0,0 +1,126 @@
+import type {
+  GfxCompatibleProps,
+  GfxElementGeometry,
+} from '@blocksuite/block-std/gfx';
+import { GfxCompatible } from '@blocksuite/block-std/gfx';
+import { Bound } from '@blocksuite/global/utils';
+import { BlockModel, defineBlockSchema } from '@blocksuite/store';
+
+import {
+  type Color,
+  DEFAULT_NOTE_BACKGROUND_COLOR,
+  DEFAULT_NOTE_BORDER_SIZE,
+  DEFAULT_NOTE_BORDER_STYLE,
+  DEFAULT_NOTE_CORNER,
+  DEFAULT_NOTE_HEIGHT,
+  DEFAULT_NOTE_SHADOW,
+  DEFAULT_NOTE_WIDTH,
+  NoteDisplayMode,
+  type StrokeStyle,
+} from '../../consts/index.js';
+
+export const NoteBlockSchema = defineBlockSchema({
+  flavour: 'affine:note',
+  props: (): NoteProps => ({
+    xywh: `[0,0,${DEFAULT_NOTE_WIDTH},${DEFAULT_NOTE_HEIGHT}]`,
+    background: DEFAULT_NOTE_BACKGROUND_COLOR,
+    index: 'a0',
+    lockedBySelf: false,
+    hidden: false,
+    displayMode: NoteDisplayMode.DocAndEdgeless,
+    edgeless: {
+      style: {
+        borderRadius: DEFAULT_NOTE_CORNER,
+        borderSize: DEFAULT_NOTE_BORDER_SIZE,
+        borderStyle: DEFAULT_NOTE_BORDER_STYLE,
+        shadowType: DEFAULT_NOTE_SHADOW,
+      },
+    },
+  }),
+  metadata: {
+    version: 1,
+    role: 'hub',
+    parent: ['affine:page'],
+    children: [
+      'affine:paragraph',
+      'affine:list',
+      'affine:code',
+      'affine:divider',
+      'affine:database',
+      'affine:data-view',
+      'affine:image',
+      'affine:bookmark',
+      'affine:attachment',
+      'affine:surface-ref',
+      'affine:embed-*',
+      'affine:latex',
+    ],
+  },
+  toModel: () => {
+    return new NoteBlockModel();
+  },
+});
+
+export type NoteProps = {
+  background: Color;
+  displayMode: NoteDisplayMode;
+  edgeless: NoteEdgelessProps;
+  /**
+   * @deprecated
+   * use `displayMode` instead
+   * hidden:true -> displayMode:NoteDisplayMode.EdgelessOnly:
+   *  means the note is visible only in the edgeless mode
+   * hidden:false -> displayMode:NoteDisplayMode.DocAndEdgeless:
+   *  means the note is visible in the doc and edgeless mode
+   */
+  hidden: boolean;
+} & GfxCompatibleProps;
+
+export type NoteEdgelessProps = {
+  style: {
+    borderRadius: number;
+    borderSize: number;
+    borderStyle: StrokeStyle;
+    shadowType: string;
+  };
+  collapse?: boolean;
+  collapsedHeight?: number;
+  scale?: number;
+};
+
+export class NoteBlockModel
+  extends GfxCompatible<NoteProps>(BlockModel)
+  implements GfxElementGeometry
+{
+  private _isSelectable(): boolean {
+    return this.displayMode !== NoteDisplayMode.DocOnly;
+  }
+
+  override containsBound(bounds: Bound): boolean {
+    if (!this._isSelectable()) return false;
+    return super.containsBound(bounds);
+  }
+
+  override includesPoint(x: number, y: number): boolean {
+    if (!this._isSelectable()) return false;
+
+    const bound = Bound.deserialize(this.xywh);
+    return bound.isPointInBound([x, y], 0);
+  }
+
+  override intersectsBound(bound: Bound): boolean {
+    if (!this._isSelectable()) return false;
+    return super.intersectsBound(bound);
+  }
+}
+
+declare global {
+  namespace BlockSuite {
+    interface BlockModels {
+      'affine:note': NoteBlockModel;
+    }
+    interface EdgelessBlockModelMap {
+      'affine:note': NoteBlockModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/paragraph/index.ts

@@ -0,0 +1 @@
+export * from './paragraph-model.js';

blocksuite/affine/model/src/blocks/paragraph/paragraph-model.ts

@@ -0,0 +1,52 @@
+import { BlockModel, defineBlockSchema, type Text } from '@blocksuite/store';
+
+export type ParagraphType =
+  | 'text'
+  | 'quote'
+  | 'h1'
+  | 'h2'
+  | 'h3'
+  | 'h4'
+  | 'h5'
+  | 'h6';
+
+export type ParagraphProps = {
+  type: ParagraphType;
+  text: Text;
+  collapsed: boolean;
+};
+
+export const ParagraphBlockSchema = defineBlockSchema({
+  flavour: 'affine:paragraph',
+  props: (internal): ParagraphProps => ({
+    type: 'text',
+    text: internal.Text(),
+    collapsed: false,
+  }),
+  metadata: {
+    version: 1,
+    role: 'content',
+    parent: [
+      'affine:note',
+      'affine:database',
+      'affine:paragraph',
+      'affine:list',
+      'affine:edgeless-text',
+    ],
+  },
+  toModel: () => new ParagraphBlockModel(),
+});
+
+export class ParagraphBlockModel extends BlockModel<ParagraphProps> {
+  override flavour!: 'affine:paragraph';
+
+  override text!: Text;
+}
+
+declare global {
+  namespace BlockSuite {
+    interface BlockModels {
+      'affine:paragraph': ParagraphBlockModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/root/index.ts

@@ -0,0 +1 @@
+export * from './root-block-model.js';

blocksuite/affine/model/src/blocks/root/root-block-model.ts

@@ -0,0 +1,45 @@
+import type { Text } from '@blocksuite/store';
+import { BlockModel, defineBlockSchema } from '@blocksuite/store';
+
+export type RootBlockProps = {
+  title: Text;
+};
+
+export class RootBlockModel extends BlockModel<RootBlockProps> {
+  constructor() {
+    super();
+    this.created.once(() => {
+      this.doc.slots.rootAdded.on(id => {
+        const model = this.doc.getBlockById(id);
+        if (model instanceof RootBlockModel) {
+          const newDocMeta = this.doc.collection.meta.getDocMeta(model.doc.id);
+          if (!newDocMeta || newDocMeta.title !== model.title.toString()) {
+            this.doc.collection.setDocMeta(model.doc.id, {
+              title: model.title.toString(),
+            });
+          }
+        }
+      });
+    });
+  }
+}
+
+export const RootBlockSchema = defineBlockSchema({
+  flavour: 'affine:page',
+  props: (internal): RootBlockProps => ({
+    title: internal.Text(),
+  }),
+  metadata: {
+    version: 2,
+    role: 'root',
+  },
+  toModel: () => new RootBlockModel(),
+});
+
+declare global {
+  namespace BlockSuite {
+    interface BlockModels {
+      'affine:page': RootBlockModel;
+    }
+  }
+}

blocksuite/affine/model/src/blocks/surface-ref/index.ts

@@ -0,0 +1 @@
+export * from './surface-ref-model.js';

blocksuite/affine/model/src/blocks/surface-ref/surface-ref-model.ts

@@ -0,0 +1,31 @@
+import { defineBlockSchema, type SchemaToModel } from '@blocksuite/store';
+
+export type SurfaceRefProps = {
+  reference: string;
+  caption: string;
+  refFlavour: string;
+};
+
+export const SurfaceRefBlockSchema = defineBlockSchema({
+  flavour: 'affine:surface-ref',
+  props: () =>
+    ({
+      reference: '',
+      caption: '',
+    }) as SurfaceRefProps,
+  metadata: {
+    version: 1,
+    role: 'content',
+    parent: ['affine:note', 'affine:paragraph', 'affine:list'],
+  },
+});
+
+export type SurfaceRefBlockModel = SchemaToModel<typeof SurfaceRefBlockSchema>;
+
+declare global {
+  namespace BlockSuite {
+    interface BlockModels {
+      'affine:surface-ref': SurfaceRefBlockModel;
+    }
+  }
+}

blocksuite/affine/model/src/consts/brush.ts

@@ -0,0 +1,3 @@
+import { LineColor } from './line.js';
+
+export const DEFAULT_BRUSH_COLOR = LineColor.Blue;

blocksuite/affine/model/src/consts/connector.ts

@@ -0,0 +1,39 @@
+import { createEnumMap } from '../utils/enum.js';
+import { LineColor } from './line.js';
+
+export enum ConnectorEndpoint {
+  Front = 'Front',
+  Rear = 'Rear',
+}
+
+export enum PointStyle {
+  Arrow = 'Arrow',
+  Circle = 'Circle',
+  Diamond = 'Diamond',
+  None = 'None',
+  Triangle = 'Triangle',
+}
+
+export const PointStyleMap = createEnumMap(PointStyle);
+
+export const DEFAULT_CONNECTOR_COLOR = LineColor.Grey;
+
+export const DEFAULT_CONNECTOR_TEXT_COLOR = LineColor.Black;
+
+export const DEFAULT_FRONT_END_POINT_STYLE = PointStyle.None;
+
+export const DEFAULT_REAR_END_POINT_STYLE = PointStyle.Arrow;
+
+export const CONNECTOR_LABEL_MAX_WIDTH = 280;
+
+export enum ConnectorLabelOffsetAnchor {
+  Bottom = 'bottom',
+  Center = 'center',
+  Top = 'top',
+}
+
+export enum ConnectorMode {
+  Straight,
+  Orthogonal,
+  Curve,
+}

blocksuite/affine/model/src/consts/doc.ts

@@ -0,0 +1,44 @@
+import { z } from 'zod';
+
+export type DocMode = 'edgeless' | 'page';
+
+export const DocModes = ['edgeless', 'page'] as const;
+
+/**
+ * Custom title and description information.
+ *
+ * Supports the following blocks:
+ *
+ * 1. Inline View: `AffineReference` - title
+ * 2. Card View: `EmbedLinkedDocBlock` - title & description
+ * 3. Embed View: `EmbedSyncedDocBlock` - title
+ */
+export const AliasInfoSchema = z
+  .object({
+    title: z.string(),
+    description: z.string(),
+  })
+  .partial();
+
+export type AliasInfo = z.infer<typeof AliasInfoSchema>;
+
+export const ReferenceParamsSchema = z
+  .object({
+    mode: z.enum(DocModes),
+    blockIds: z.string().array(),
+    elementIds: z.string().array(),
+    databaseId: z.string().optional(),
+    databaseRowId: z.string().optional(),
+  })
+  .partial();
+
+export type ReferenceParams = z.infer<typeof ReferenceParamsSchema>;
+
+export const ReferenceInfoSchema = z
+  .object({
+    pageId: z.string(),
+    params: ReferenceParamsSchema.optional(),
+  })
+  .merge(AliasInfoSchema);
+
+export type ReferenceInfo = z.infer<typeof ReferenceInfoSchema>;

blocksuite/affine/model/src/consts/frame.ts

@@ -0,0 +1,27 @@
+import { z } from 'zod';
+
+export enum FrameBackgroundColor {
+  Blue = '--affine-tag-blue',
+  Gray = '--affine-tag-gray',
+  Green = '--affine-tag-green',
+  Orange = '--affine-tag-orange',
+  Pink = '--affine-tag-pink',
+  Purple = '--affine-tag-purple',
+  Red = '--affine-tag-red',
+  Teal = '--affine-tag-teal',
+  Yellow = '--affine-tag-yellow',
+}
+
+export const FRAME_BACKGROUND_COLORS = [
+  FrameBackgroundColor.Gray,
+  FrameBackgroundColor.Red,
+  FrameBackgroundColor.Orange,
+  FrameBackgroundColor.Yellow,
+  FrameBackgroundColor.Green,
+  FrameBackgroundColor.Teal,
+  FrameBackgroundColor.Blue,
+  FrameBackgroundColor.Purple,
+  FrameBackgroundColor.Pink,
+];
+
+export const FrameBackgroundColorsSchema = z.nativeEnum(FrameBackgroundColor);

blocksuite/affine/model/src/consts/index.ts

@@ -0,0 +1,9 @@
+export * from './brush.js';
+export * from './connector.js';
+export * from './doc.js';
+export * from './frame.js';
+export * from './line.js';
+export * from './mindmap.js';
+export * from './note.js';
+export * from './shape.js';
+export * from './text.js';

blocksuite/affine/model/src/consts/line.ts

@@ -0,0 +1,46 @@
+import { z } from 'zod';
+
+import { createEnumMap } from '../utils/enum.js';
+
+export enum LineWidth {
+  Eight = 8,
+  // Thin
+  Four = 4,
+  Six = 6,
+  // Thick
+  Ten = 10,
+  Twelve = 12,
+  Two = 2,
+}
+
+export enum LineColor {
+  Black = '--affine-palette-line-black',
+  Blue = '--affine-palette-line-blue',
+  Green = '--affine-palette-line-green',
+  Grey = '--affine-palette-line-grey',
+  Magenta = '--affine-palette-line-magenta',
+  Orange = '--affine-palette-line-orange',
+  Purple = '--affine-palette-line-purple',
+  Red = '--affine-palette-line-red',
+  Teal = '--affine-palette-line-teal',
+  White = '--affine-palette-line-white',
+  Yellow = '--affine-palette-line-yellow',
+}
+
+export const LineColorMap = createEnumMap(LineColor);
+
+export const LINE_COLORS = [
+  LineColor.Yellow,
+  LineColor.Orange,
+  LineColor.Red,
+  LineColor.Magenta,
+  LineColor.Purple,
+  LineColor.Blue,
+  LineColor.Teal,
+  LineColor.Green,
+  LineColor.Black,
+  LineColor.Grey,
+  LineColor.White,
+] as const;
+
+export const LineColorsSchema = z.nativeEnum(LineColor);

blocksuite/affine/model/src/consts/mindmap.ts

@@ -0,0 +1,12 @@
+export enum LayoutType {
+  BALANCE = 2,
+  LEFT = 1,
+  RIGHT = 0,
+}
+
+export enum MindmapStyle {
+  FOUR = 4,
+  ONE = 1,
+  THREE = 3,
+  TWO = 2,
+}

blocksuite/affine/model/src/consts/note.ts

@@ -0,0 +1,107 @@
+import { z } from 'zod';
+
+import { createEnumMap } from '../utils/enum.js';
+
+export const NOTE_MIN_WIDTH = 450 + 24 * 2;
+export const NOTE_MIN_HEIGHT = 92;
+
+export const DEFAULT_NOTE_WIDTH = NOTE_MIN_WIDTH;
+export const DEFAULT_NOTE_HEIGHT = NOTE_MIN_HEIGHT;
+
+export enum NoteBackgroundColor {
+  Black = '--affine-note-background-black',
+  Blue = '--affine-note-background-blue',
+  Green = '--affine-note-background-green',
+  Grey = '--affine-note-background-grey',
+  Magenta = '--affine-note-background-magenta',
+  Orange = '--affine-note-background-orange',
+  Purple = '--affine-note-background-purple',
+  Red = '--affine-note-background-red',
+  Teal = '--affine-note-background-teal',
+  White = '--affine-note-background-white',
+  Yellow = '--affine-note-background-yellow',
+}
+
+export const NoteBackgroundColorMap = createEnumMap(NoteBackgroundColor);
+
+export const NOTE_BACKGROUND_COLORS = [
+  NoteBackgroundColor.Yellow,
+  NoteBackgroundColor.Orange,
+  NoteBackgroundColor.Red,
+  NoteBackgroundColor.Magenta,
+  NoteBackgroundColor.Purple,
+  NoteBackgroundColor.Blue,
+  NoteBackgroundColor.Teal,
+  NoteBackgroundColor.Green,
+  NoteBackgroundColor.Black,
+  NoteBackgroundColor.Grey,
+  NoteBackgroundColor.White,
+] as const;
+
+export const DEFAULT_NOTE_BACKGROUND_COLOR = NoteBackgroundColor.White;
+
+export const NoteBackgroundColorsSchema = z.nativeEnum(NoteBackgroundColor);
+
+export enum NoteShadow {
+  Box = '--affine-note-shadow-box',
+  Film = '--affine-note-shadow-film',
+  Float = '--affine-note-shadow-float',
+  None = '',
+  Paper = '--affine-note-shadow-paper',
+  Sticker = '--affine-note-shadow-sticker',
+}
+
+export const NoteShadowMap = createEnumMap(NoteShadow);
+
+export const NOTE_SHADOWS = [
+  NoteShadow.None,
+  NoteShadow.Box,
+  NoteShadow.Sticker,
+  NoteShadow.Paper,
+  NoteShadow.Float,
+  NoteShadow.Film,
+] as const;
+
+export const DEFAULT_NOTE_SHADOW = NoteShadow.Box;
+
+export const NoteShadowsSchema = z.nativeEnum(NoteShadow);
+
+export enum NoteDisplayMode {
+  DocAndEdgeless = 'both',
+  DocOnly = 'doc',
+  EdgelessOnly = 'edgeless',
+}
+
+export enum StrokeStyle {
+  Dash = 'dash',
+  None = 'none',
+  Solid = 'solid',
+}
+
+export const DEFAULT_NOTE_BORDER_STYLE = StrokeStyle.None;
+
+export const StrokeStyleMap = createEnumMap(StrokeStyle);
+
+export enum NoteCorners {
+  Huge = 32,
+  Large = 24,
+  Medium = 16,
+  None = 0,
+  Small = 8,
+}
+
+export const NoteCornersMap = createEnumMap(NoteCorners);
+
+export const NOTE_CORNERS = [
+  NoteCorners.None,
+  NoteCorners.Small,
+  NoteCorners.Medium,
+  NoteCorners.Large,
+  NoteCorners.Huge,
+] as const;
+
+export const DEFAULT_NOTE_CORNER = NoteCorners.Small;
+
+export const NoteCornersSchema = z.nativeEnum(NoteCorners);
+
+export const DEFAULT_NOTE_BORDER_SIZE = 4;

blocksuite/affine/model/src/consts/shape.ts

@@ -0,0 +1,90 @@
+import { z } from 'zod';
+
+import { LINE_COLORS, LineColor } from './line.js';
+
+export const DEFAULT_ROUGHNESS = 1.4;
+
+// TODO: need to check the default central area ratio
+export const DEFAULT_CENTRAL_AREA_RATIO = 0.3;
+
+export enum ShapeTextFontSize {
+  LARGE = 28,
+  MEDIUM = 20,
+  SMALL = 12,
+  XLARGE = 36,
+}
+
+export enum ShapeType {
+  Diamond = 'diamond',
+  Ellipse = 'ellipse',
+  Rect = 'rect',
+  Triangle = 'triangle',
+}
+
+export type ShapeName = ShapeType | 'roundedRect';
+
+export function getShapeName(type: ShapeType, radius: number): ShapeName {
+  if (type === ShapeType.Rect && radius > 0) {
+    return 'roundedRect';
+  }
+  return type;
+}
+
+export function getShapeType(name: ShapeName): ShapeType {
+  if (name === 'roundedRect') {
+    return ShapeType.Rect;
+  }
+  return name;
+}
+
+export function getShapeRadius(name: ShapeName): number {
+  if (name === 'roundedRect') {
+    return 0.1;
+  }
+  return 0;
+}
+
+export enum ShapeStyle {
+  General = 'General',
+  Scribbled = 'Scribbled',
+}
+
+export enum ShapeFillColor {
+  Black = '--affine-palette-shape-black',
+  Blue = '--affine-palette-shape-blue',
+  Green = '--affine-palette-shape-green',
+  Grey = '--affine-palette-shape-grey',
+  Magenta = '--affine-palette-shape-magenta',
+  Orange = '--affine-palette-shape-orange',
+  Purple = '--affine-palette-shape-purple',
+  Red = '--affine-palette-shape-red',
+  Teal = '--affine-palette-shape-teal',
+  White = '--affine-palette-shape-white',
+  Yellow = '--affine-palette-shape-yellow',
+}
+
+export const SHAPE_FILL_COLORS = [
+  ShapeFillColor.Yellow,
+  ShapeFillColor.Orange,
+  ShapeFillColor.Red,
+  ShapeFillColor.Magenta,
+  ShapeFillColor.Purple,
+  ShapeFillColor.Blue,
+  ShapeFillColor.Teal,
+  ShapeFillColor.Green,
+  ShapeFillColor.Black,
+  ShapeFillColor.Grey,
+  ShapeFillColor.White,
+] as const;
+
+export const DEFAULT_SHAPE_FILL_COLOR = ShapeFillColor.Yellow;
+
+export const FillColorsSchema = z.nativeEnum(ShapeFillColor);
+
+export const SHAPE_STROKE_COLORS = LINE_COLORS;
+
+export const DEFAULT_SHAPE_STROKE_COLOR = LineColor.Yellow;
+
+export const DEFAULT_SHAPE_TEXT_COLOR = LineColor.Black;
+
+export const StrokeColorsSchema = z.nativeEnum(LineColor);

blocksuite/affine/model/src/consts/text.ts

@@ -0,0 +1,70 @@
+import { createEnumMap } from '../utils/enum.js';
+import { LineColor } from './line.js';
+
+export enum ColorScheme {
+  Dark = 'dark',
+  Light = 'light',
+}
+
+export type Color = string | Partial<Record<ColorScheme | 'normal', string>>;
+
+export enum TextAlign {
+  Center = 'center',
+  Left = 'left',
+  Right = 'right',
+}
+
+export const TextAlignMap = createEnumMap(TextAlign);
+
+export enum TextVerticalAlign {
+  Bottom = 'bottom',
+  Center = 'center',
+  Top = 'top',
+}
+
+export type TextStyleProps = {
+  color: Color;
+  fontFamily: FontFamily;
+  fontSize: number;
+  fontStyle: FontStyle;
+  fontWeight: FontWeight;
+  textAlign: TextAlign;
+};
+
+export enum FontWeight {
+  Bold = '700',
+  Light = '300',
+  Medium = '500',
+  Regular = '400',
+  SemiBold = '600',
+}
+
+export const FontWeightMap = createEnumMap(FontWeight);
+
+export enum FontStyle {
+  Italic = 'italic',
+  Normal = 'normal',
+}
+
+export enum FontFamily {
+  BebasNeue = 'blocksuite:surface:BebasNeue',
+  Inter = 'blocksuite:surface:Inter',
+  Kalam = 'blocksuite:surface:Kalam',
+  Lora = 'blocksuite:surface:Lora',
+  OrelegaOne = 'blocksuite:surface:OrelegaOne',
+  Poppins = 'blocksuite:surface:Poppins',
+  Satoshi = 'blocksuite:surface:Satoshi',
+}
+
+export const FontFamilyMap = createEnumMap(FontFamily);
+
+export const FontFamilyList = Object.entries(FontFamilyMap) as {
+  [K in FontFamily]: [K, (typeof FontFamilyMap)[K]];
+}[FontFamily][];
+
+export enum TextResizing {
+  AUTO_WIDTH_AND_HEIGHT,
+  AUTO_HEIGHT,
+}
+
+export const DEFAULT_TEXT_COLOR = LineColor.Blue;

blocksuite/affine/model/src/elements/brush/brush.ts

@@ -0,0 +1,234 @@
+import type {
+  BaseElementProps,
+  PointTestOptions,
+} from '@blocksuite/block-std/gfx';
+import {
+  convert,
+  derive,
+  field,
+  GfxPrimitiveElementModel,
+  watch,
+} from '@blocksuite/block-std/gfx';
+import {
+  Bound,
+  getBoundFromPoints,
+  getPointsFromBoundWithRotation,
+  getQuadBoundWithRotation,
+  getSolidStrokePoints,
+  getSvgPathFromStroke,
+  inflateBound,
+  isPointOnlines,
+  type IVec,
+  type IVec3,
+  lineIntersects,
+  PointLocation,
+  polyLineNearestPoint,
+  type SerializedXYWH,
+  transformPointsToNewBound,
+  Vec,
+} from '@blocksuite/global/utils';
+
+import type { Color } from '../../consts/index.js';
+
+export type BrushProps = BaseElementProps & {
+  /**
+   * [[x0,y0,pressure0?],[x1,y1,pressure1?]...]
+   * pressure is optional and exsits when pressure sensitivity is supported, otherwise not.
+   */
+  points: number[][];
+  color: Color;
+  lineWidth: number;
+};
+
+export class BrushElementModel extends GfxPrimitiveElementModel<BrushProps> {
+  /**
+   * The SVG path commands for the brush.
+   */
+  get commands() {
+    if (!this._local.has('commands')) {
+      const stroke = getSolidStrokePoints(this.points, this.lineWidth);
+      const commands = getSvgPathFromStroke(stroke);
+
+      this._local.set('commands', commands);
+    }
+
+    return this._local.get('commands') as string;
+  }
+
+  override get connectable() {
+    return false;
+  }
+
+  override get type() {
+    return 'brush';
+  }
+
+  static override propsToY(props: BrushProps) {
+    return props;
+  }
+
+  override containsBound(bounds: Bound) {
+    const points = getPointsFromBoundWithRotation(this);
+    return points.some(point => bounds.containsPoint(point));
+  }
+
+  override getLineIntersections(start: IVec, end: IVec) {
+    const tl = [this.x, this.y];
+    const points = getPointsFromBoundWithRotation(this, _ =>
+      this.points.map(point => Vec.add(point, tl))
+    );
+
+    const box = Bound.fromDOMRect(getQuadBoundWithRotation(this));
+
+    if (box.w < 8 && box.h < 8) {
+      return Vec.distanceToLineSegment(start, end, box.center) < 5 ? [] : null;
+    }
+
+    if (box.intersectLine(start, end, true)) {
+      const len = points.length;
+      for (let i = 1; i < len; i++) {
+        const result = lineIntersects(start, end, points[i - 1], points[i]);
+        if (result) {
+          return [
+            new PointLocation(
+              result,
+              Vec.normalize(Vec.sub(points[i], points[i - 1]))
+            ),
+          ];
+        }
+      }
+    }
+    return null;
+  }
+
+  override getNearestPoint(point: IVec): IVec {
+    const { x, y } = this;
+
+    return polyLineNearestPoint(
+      this.points.map(p => Vec.add(p, [x, y])),
+      point
+    ) as IVec;
+  }
+
+  override getRelativePointLocation(position: IVec): PointLocation {
+    const point = Bound.deserialize(this.xywh).getRelativePoint(position);
+    return new PointLocation(point);
+  }
+
+  override includesPoint(
+    px: number,
+    py: number,
+    options?: PointTestOptions
+  ): boolean {
+    const hit = isPointOnlines(
+      Bound.deserialize(this.xywh),
+      this.points as [number, number][],
+      this.rotate,
+      [px, py],
+      (options?.hitThreshold ?? 10) / Math.min(options?.zoom ?? 1, 1)
+    );
+    return hit;
+  }
+
+  @field()
+  accessor color: Color = '#000000';
+
+  @watch((_, instance) => {
+    instance['_local'].delete('commands');
+  })
+  @derive((lineWidth: number, instance: Instance) => {
+    const oldBound = instance.elementBound;
+
+    if (
+      lineWidth === instance.lineWidth ||
+      oldBound.w === 0 ||
+      oldBound.h === 0
+    )
+      return {};
+
+    const points = instance.points;
+    const transformed = transformPointsToNewBound(
+      points.map(([x, y]) => ({ x, y })),
+      oldBound,
+      instance.lineWidth / 2,
+      inflateBound(oldBound, lineWidth - instance.lineWidth),
+      lineWidth / 2
+    );
+
+    return {
+      points: transformed.points.map((p, i) => [
+        p.x,
+        p.y,
+        ...(points[i][2] !== undefined ? [points[i][2]] : []),
+      ]),
+      xywh: transformed.bound.serialize(),
+    };
+  })
+  @field()
+  accessor lineWidth: number = 4;
+
+  @watch((_, instance) => {
+    instance['_local'].delete('commands');
+  })
+  @derive((points: IVec[], instance: Instance) => {
+    const lineWidth = instance.lineWidth;
+    const bound = getBoundFromPoints(points);
+    const boundWidthLineWidth = inflateBound(bound, lineWidth);
+
+    return {
+      xywh: boundWidthLineWidth.serialize(),
+    };
+  })
+  @convert((points: (IVec | IVec3)[], instance) => {
+    const lineWidth = instance.lineWidth;
+    const bound = getBoundFromPoints(points as IVec[]);
+    const boundWidthLineWidth = inflateBound(bound, lineWidth);
+    const relativePoints = points.map(([x, y, pressure]) => [
+      x - boundWidthLineWidth.x,
+      y - boundWidthLineWidth.y,
+      ...(pressure !== undefined ? [pressure] : []),
+    ]);
+
+    return relativePoints;
+  })
+  @field()
+  accessor points: (IVec | IVec3)[] = [];
+
+  @field(0)
+  accessor rotate: number = 0;
+
+  @derive((xywh: SerializedXYWH, instance: Instance) => {
+    const bound = Bound.deserialize(xywh);
+
+    if (bound.w === instance.w && bound.h === instance.h) return {};
+
+    const { lineWidth } = instance;
+    const transformed = transformPointsToNewBound(
+      instance.points.map(([x, y]) => ({ x, y })),
+      instance,
+      instance.lineWidth / 2,
+      bound,
+      lineWidth / 2
+    );
+
+    return {
+      points: transformed.points.map((p, i) => [
+        p.x,
+        p.y,
+        ...(instance.points[i][2] !== undefined ? [instance.points[i][2]] : []),
+      ]),
+    };
+  })
+  @field()
+  accessor xywh: SerializedXYWH = '[0,0,0,0]';
+}
+
+type Instance = GfxPrimitiveElementModel<BrushProps> & BrushProps;
+
+declare global {
+  namespace BlockSuite {
+    interface SurfaceElementModelMap {
+      brush: BrushElementModel;
+    }
+  }
+}

blocksuite/affine/model/src/elements/brush/index.ts

@@ -0,0 +1 @@
+export * from './brush.js';

blocksuite/affine/model/src/elements/connector/connector.ts

@@ -0,0 +1,521 @@
+import type {
+  BaseElementProps,
+  PointTestOptions,
+  SerializedElement,
+} from '@blocksuite/block-std/gfx';
+import {
+  derive,
+  field,
+  GfxPrimitiveElementModel,
+  local,
+} from '@blocksuite/block-std/gfx';
+import type { IVec, SerializedXYWH, XYWH } from '@blocksuite/global/utils';
+import {
+  Bound,
+  curveIntersects,
+  getBezierNearestPoint,
+  getBezierNearestTime,
+  getBezierParameters,
+  getBezierPoint,
+  linePolylineIntersects,
+  PointLocation,
+  Polyline,
+  polyLineNearestPoint,
+  Vec,
+} from '@blocksuite/global/utils';
+import { DocCollection, type Y } from '@blocksuite/store';
+
+import {
+  type Color,
+  CONNECTOR_LABEL_MAX_WIDTH,
+  ConnectorLabelOffsetAnchor,
+  ConnectorMode,
+  DEFAULT_ROUGHNESS,
+  FontFamily,
+  FontStyle,
+  FontWeight,
+  type PointStyle,
+  StrokeStyle,
+  TextAlign,
+  type TextStyleProps,
+} from '../../consts/index.js';
+
+export type SerializedConnection = {
+  id?: string;
+  position?: `[${number},${number}]` | PointLocation;
+};
+
+// at least one of id and position is not null
+// both exists means the position is relative to the element
+export type Connection = {
+  id?: string;
+  position?: [number, number];
+};
+
+export const getConnectorModeName = (mode: ConnectorMode) => {
+  return {
+    [ConnectorMode.Straight]: 'Straight',
+    [ConnectorMode.Orthogonal]: 'Elbowed',
+    [ConnectorMode.Curve]: 'Curve',
+  }[mode];
+};
+
+export type ConnectorLabelOffsetProps = {
+  // [0, 1], `0.5` by default
+  distance: number;
+  // `center` by default
+  anchor?: ConnectorLabelOffsetAnchor;
+};
+
+export type ConnectorLabelConstraintsProps = {
+  hasMaxWidth: boolean;
+  maxWidth: number;
+};
+
+export type ConnectorLabelProps = {
+  // Label's content
+  text?: Y.Text;
+  labelEditing?: boolean;
+  labelDisplay?: boolean;
+  labelXYWH?: XYWH;
+  labelOffset?: ConnectorLabelOffsetProps;
+  labelStyle?: TextStyleProps;
+  labelConstraints?: ConnectorLabelConstraintsProps;
+};
+
+export type SerializedConnectorElement = SerializedElement & {
+  source: SerializedConnection;
+  target: SerializedConnection;
+};
+
+export type ConnectorElementProps = BaseElementProps & {
+  mode: ConnectorMode;
+  stroke: Color;
+  strokeWidth: number;
+  strokeStyle: StrokeStyle;
+  roughness?: number;
+  rough?: boolean;
+  source: Connection;
+  target: Connection;
+
+  frontEndpointStyle?: PointStyle;
+  rearEndpointStyle?: PointStyle;
+} & ConnectorLabelProps;
+
+export class ConnectorElementModel extends GfxPrimitiveElementModel<ConnectorElementProps> {
+  updatingPath = false;
+
+  override get connectable() {
+    return false as const;
+  }
+
+  get connected() {
+    return !!(this.source.id || this.target.id);
+  }
+
+  override get elementBound() {
+    let bounds = super.elementBound;
+    if (this.hasLabel()) {
+      bounds = bounds.unite(Bound.fromXYWH(this.labelXYWH!));
+    }
+    return bounds;
+  }
+
+  get type() {
+    return 'connector';
+  }
+
+  static override propsToY(props: ConnectorElementProps) {
+    if (props.text && !(props.text instanceof DocCollection.Y.Text)) {
+      props.text = new DocCollection.Y.Text(props.text);
+    }
+
+    return props;
+  }
+
+  override containsBound(bounds: Bound) {
+    return (
+      this.absolutePath.some(point => bounds.containsPoint(point)) ||
+      (this.hasLabel() &&
+        Bound.fromXYWH(this.labelXYWH!).points.some(p =>
+          bounds.containsPoint(p)
+        ))
+    );
+  }
+
+  override getLineIntersections(start: IVec, end: IVec) {
+    const { mode, absolutePath: path } = this;
+
+    let intersected = null;
+
+    if (mode === ConnectorMode.Curve && path.length > 1) {
+      intersected = curveIntersects(path, [start, end]);
+    } else {
+      intersected = linePolylineIntersects(start, end, path);
+    }
+
+    if (!intersected && this.hasLabel()) {
+      intersected = linePolylineIntersects(
+        start,
+        end,
+        Bound.fromXYWH(this.labelXYWH!).points
+      );
+    }
+
+    return intersected;
+  }
+
+  /**
+   * Calculate the closest point on the curve via a point.
+   */
+  override getNearestPoint(point: IVec): IVec {
+    const { mode, absolutePath: path } = this;
+
+    if (mode === ConnectorMode.Straight) {
+      const first = path[0];
+      const last = path[path.length - 1];
+      return Vec.nearestPointOnLineSegment(first, last, point, true);
+    }
+
+    if (mode === ConnectorMode.Orthogonal) {
+      const points = path.map<IVec>(p => [p[0], p[1]]);
+      return Polyline.nearestPoint(points, point);
+    }
+
+    const b = getBezierParameters(path);
+    const t = getBezierNearestTime(b, point);
+    const p = getBezierPoint(b, t);
+    if (p) return p;
+
+    const { x, y } = this;
+    return [x, y];
+  }
+
+  /**
+   * Calculating the computed distance along a path via a point.
+   *
+   * The point is relative to the viewport.
+   */
+  getOffsetDistanceByPoint(point: IVec, bounds?: Bound) {
+    const { mode, absolutePath: path } = this;
+
+    let { x, y, w, h } = this;
+    if (bounds) {
+      x = bounds.x;
+      y = bounds.y;
+      w = bounds.w;
+      h = bounds.h;
+    }
+
+    point[0] = Vec.clamp(point[0], x, x + w);
+    point[1] = Vec.clamp(point[1], y, y + h);
+
+    if (mode === ConnectorMode.Straight) {
+      const s = path[0];
+      const e = path[path.length - 1];
+      const pl = Vec.dist(s, point);
+      const fl = Vec.dist(s, e);
+      return pl / fl;
+    }
+
+    if (mode === ConnectorMode.Orthogonal) {
+      const points = path.map<IVec>(p => [p[0], p[1]]);
+      const p = Polyline.nearestPoint(points, point);
+      const pl = Polyline.lenAtPoint(points, p);
+      const fl = Polyline.len(points);
+      return pl / fl;
+    }
+
+    const b = getBezierParameters(path);
+    return getBezierNearestTime(b, point);
+  }
+
+  /**
+   * Calculating the computed point along a path via a offset distance.
+   *
+   * Returns a point relative to the viewport.
+   */
+  getPointByOffsetDistance(offsetDistance = 0.5, bounds?: Bound): IVec {
+    const { mode, absolutePath: path } = this;
+
+    if (mode === ConnectorMode.Straight) {
+      const first = path[0];
+      const last = path[path.length - 1];
+      return Vec.lrp(first, last, offsetDistance);
+    }
+
+    let { x, y, w, h } = this;
+    if (bounds) {
+      x = bounds.x;
+      y = bounds.y;
+      w = bounds.w;
+      h = bounds.h;
+    }
+
+    if (mode === ConnectorMode.Orthogonal) {
+      const points = path.map<IVec>(p => [p[0], p[1]]);
+      const point = Polyline.pointAt(points, offsetDistance);
+      if (point) return point;
+      return [x + w / 2, y + h / 2];
+    }
+
+    const b = getBezierParameters(path);
+    const point = getBezierPoint(b, offsetDistance);
+    if (point) return point;
+    return [x + w / 2, y + h / 2];
+  }
+
+  override getRelativePointLocation(point: IVec): PointLocation {
+    return new PointLocation(
+      Bound.deserialize(this.xywh).getRelativePoint(point)
+    );
+  }
+
+  hasLabel() {
+    return Boolean(!this.lableEditing && this.labelDisplay && this.labelXYWH);
+  }
+
+  override includesPoint(
+    x: number,
+    y: number,
+    options?: PointTestOptions | undefined
+  ): boolean {
+    const currentPoint: IVec = [x, y];
+
+    if (this.labelIncludesPoint(currentPoint as IVec)) {
+      return true;
+    }
+
+    const { mode, strokeWidth, absolutePath: path } = this;
+
+    const point =
+      mode === ConnectorMode.Curve
+        ? getBezierNearestPoint(getBezierParameters(path), currentPoint)
+        : polyLineNearestPoint(path, currentPoint);
+
+    return (
+      Vec.dist(point, currentPoint) <
+      (options?.hitThreshold ? strokeWidth / 2 : 0) + 8
+    );
+  }
+
+  labelIncludesPoint(point: IVec) {
+    return (
+      this.hasLabel() && Bound.fromXYWH(this.labelXYWH!).isPointInBound(point)
+    );
+  }
+
+  moveTo(bound: Bound) {
+    const oldBound = Bound.deserialize(this.xywh);
+    const offset = Vec.sub([bound.x, bound.y], [oldBound.x, oldBound.y]);
+    const { source, target } = this;
+
+    if (!source.id && source.position) {
+      this.source = {
+        position: Vec.add(source.position, offset) as [number, number],
+      };
+    }
+
+    if (!target.id && target.position) {
+      this.target = {
+        position: Vec.add(target.position, offset) as [number, number],
+      };
+    }
+
+    // Updates Connector's Label position.
+    if (this.hasLabel()) {
+      const [x, y, w, h] = this.labelXYWH!;
+      this.labelXYWH = [x + offset[0], y + offset[1], w, h];
+    }
+  }
+
+  resize(bounds: Bound, originalPath: PointLocation[], matrix: DOMMatrix) {
+    this.updatingPath = false;
+
+    const path = this.resizePath(originalPath, matrix);
+
+    // the property assignment order matters
+    this.xywh = bounds.serialize();
+    this.path = path.map(p => p.clone().setVec(Vec.sub(p, bounds.tl)));
+
+    const props: {
+      labelXYWH?: XYWH;
+      source?: Connection;
+      target?: Connection;
+    } = {};
+
+    // Updates Connector's Label position.
+    if (this.hasLabel()) {
+      const [cx, cy] = this.getPointByOffsetDistance(this.labelOffset.distance);
+      const [, , w, h] = this.labelXYWH!;
+      props.labelXYWH = [cx - w / 2, cy - h / 2, w, h];
+    }
+
+    if (!this.source.id) {
+      props.source = {
+        ...this.source,
+        position: path[0].toVec() as [number, number],
+      };
+    }
+    if (!this.target.id) {
+      props.target = {
+        ...this.target,
+        position: path[path.length - 1].toVec() as [number, number],
+      };
+    }
+
+    return props;
+  }
+
+  resizePath(originalPath: PointLocation[], matrix: DOMMatrix) {
+    if (this.mode === ConnectorMode.Curve) {
+      return originalPath.map(point => {
+        const [p, t, absIn, absOut] = [
+          point,
+          point.tangent,
+          point.absIn,
+          point.absOut,
+        ]
+          .map(p => new DOMPoint(...p).matrixTransform(matrix))
+          .map(p => [p.x, p.y] as IVec);
+        const ip = Vec.sub(absIn, p);
+        const op = Vec.sub(absOut, p);
+        return new PointLocation(p, t, ip, op);
+      });
+    }
+
+    return originalPath.map(point => {
+      const { x, y } = new DOMPoint(...point).matrixTransform(matrix);
+      const p: IVec = [x, y];
+      return PointLocation.fromVec(p);
+    });
+  }
+
+  override serialize() {
+    const result = super.serialize();
+    result.xywh = this.xywh;
+    result.source = structuredClone(this.source);
+    result.target = structuredClone(this.target);
+    return result as SerializedConnectorElement;
+  }
+
+  @local()
+  accessor absolutePath: PointLocation[] = [];
+
+  @field('None' as PointStyle)
+  accessor frontEndpointStyle!: PointStyle;
+
+  /**
+   * Defines the size constraints of the label.
+   */
+  @field({
+    hasMaxWidth: true,
+    maxWidth: CONNECTOR_LABEL_MAX_WIDTH,
+  } as ConnectorLabelConstraintsProps)
+  accessor labelConstraints!: ConnectorLabelConstraintsProps;
+
+  /**
+   * Control display and hide.
+   */
+  @field(true)
+  accessor labelDisplay!: boolean;
+
+  /**
+   * The offset property specifies the label along the connector path.
+   */
+  @field({
+    distance: 0.5,
+    anchor: ConnectorLabelOffsetAnchor.Center,
+  } as ConnectorLabelOffsetProps)
+  accessor labelOffset!: ConnectorLabelOffsetProps;
+
+  /**
+   * Defines the style of the label.
+   */
+  @field({
+    color: '#000000',
+    fontFamily: FontFamily.Inter,
+    fontSize: 16,
+    fontStyle: FontStyle.Normal,
+    fontWeight: FontWeight.Regular,
+    textAlign: TextAlign.Center,
+  } as TextStyleProps)
+  accessor labelStyle!: TextStyleProps;
+
+  /**
+   * Returns a `XYWH` array providing information about the size of a label
+   * and its position relative to the viewport.
+   */
+  @field()
+  accessor labelXYWH: XYWH | undefined = undefined;
+
+  /**
+   * Local control display and hide, mainly used in editing scenarios.
+   */
+  @local()
+  accessor lableEditing: boolean = false;
+
+  @field()
+  accessor mode: ConnectorMode = ConnectorMode.Orthogonal;
+
+  @derive((path: PointLocation[], instance) => {
+    const { x, y } = instance;
+
+    return {
+      absolutePath: path.map(p => p.clone().setVec(Vec.add(p, [x, y]))),
+    };
+  })
+  @local()
+  accessor path: PointLocation[] = [];
+
+  @field('Arrow' as PointStyle)
+  accessor rearEndpointStyle!: PointStyle;
+
+  @local()
+  accessor rotate: number = 0;
+
+  @field()
+  accessor rough: boolean | undefined = undefined;
+
+  @field()
+  accessor roughness: number = DEFAULT_ROUGHNESS;
+
+  @field()
+  accessor source: Connection = {
+    position: [0, 0],
+  };
+
+  @field()
+  accessor stroke: Color = '#000000';
+
+  @field()
+  accessor strokeStyle: StrokeStyle = StrokeStyle.Solid;
+
+  @field()
+  accessor strokeWidth: number = 4;
+
+  @field()
+  accessor target: Connection = {
+    position: [0, 0],
+  };
+
+  /**
+   * The content of the label.
+   */
+  @field()
+  accessor text: Y.Text | undefined = undefined;
+
+  @local()
+  accessor xywh: SerializedXYWH = '[0,0,0,0]';
+}
+
+declare global {
+  namespace BlockSuite {
+    interface SurfaceElementModelMap {
+      connector: ConnectorElementModel;
+    }
+    interface EdgelessTextModelMap {
+      connector: ConnectorElementModel;
+    }
+  }
+}

blocksuite/affine/model/src/elements/connector/index.ts

@@ -0,0 +1,2 @@
+export * from './connector.js';
+export * from './local-connector.js';

blocksuite/affine/model/src/elements/connector/local-connector.ts

@@ -0,0 +1,66 @@
+import { GfxLocalElementModel } from '@blocksuite/block-std/gfx';
+import type { PointLocation } from '@blocksuite/global/utils';
+
+import {
+  type Color,
+  ConnectorMode,
+  DEFAULT_ROUGHNESS,
+  type PointStyle,
+  StrokeStyle,
+} from '../../consts/index.js';
+import type { Connection } from './connector.js';
+
+export class LocalConnectorElementModel extends GfxLocalElementModel {
+  private _path: PointLocation[] = [];
+
+  absolutePath: PointLocation[] = [];
+
+  frontEndpointStyle!: PointStyle;
+
+  mode: ConnectorMode = ConnectorMode.Orthogonal;
+
+  rearEndpointStyle!: PointStyle;
+
+  rough?: boolean;
+
+  roughness: number = DEFAULT_ROUGHNESS;
+
+  source: Connection = {
+    position: [0, 0],
+  };
+
+  stroke: Color = '#000000';
+
+  strokeStyle: StrokeStyle = StrokeStyle.Solid;
+
+  strokeWidth: number = 4;
+
+  target: Connection = {
+    position: [0, 0],
+  };
+
+  updatingPath = false;
+
+  get path(): PointLocation[] {
+    return this._path;
+  }
+
+  set path(value: PointLocation[]) {
+    const { x, y } = this;
+
+    this._path = value;
+    this.absolutePath = value.map(p => p.clone().setVec([p[0] + x, p[1] + y]));
+  }
+
+  get type() {
+    return 'connector';
+  }
+}
+
+declare global {
+  namespace BlockSuite {
+    interface SurfaceLocalModelMap {
+      connector: LocalConnectorElementModel;
+    }
+  }
+}

blocksuite/affine/model/src/elements/group/group.ts

@@ -0,0 +1,124 @@
+import type {
+  BaseElementProps,
+  GfxModel,
+  SerializedElement,
+} from '@blocksuite/block-std/gfx';
+import {
+  canSafeAddToContainer,
+  field,
+  GfxGroupLikeElementModel,
+  local,
+  observe,
+} from '@blocksuite/block-std/gfx';
+import type { IVec, PointLocation } from '@blocksuite/global/utils';
+import { Bound, keys, linePolygonIntersects } from '@blocksuite/global/utils';
+import type { Y } from '@blocksuite/store';
+import { DocCollection } from '@blocksuite/store';
+
+type GroupElementProps = BaseElementProps & {
+  children: Y.Map<boolean>;
+  title: Y.Text;
+};
+
+export type SerializedGroupElement = SerializedElement & {
+  title: string;
+  children: Record<string, boolean>;
+};
+
+export class GroupElementModel extends GfxGroupLikeElementModel<GroupElementProps> {
+  get rotate() {
+    return 0;
+  }
+
+  set rotate(_: number) {}
+
+  get type() {
+    return 'group';
+  }
+
+  static override propsToY(props: Record<string, unknown>) {
+    if ('title' in props && !(props.title instanceof DocCollection.Y.Text)) {
+      props.title = new DocCollection.Y.Text(props.title as string);
+    }
+
+    if (props.children && !(props.children instanceof DocCollection.Y.Map)) {
+      const children = new DocCollection.Y.Map() as Y.Map<boolean>;
+
+      keys(props.children).forEach(key => {
+        children.set(key as string, true);
+      });
+
+      props.children = children;
+    }
+
+    return props as GroupElementProps;
+  }
+
+  override addChild(element: GfxModel) {
+    if (!canSafeAddToContainer(this, element)) {
+      return;
+    }
+
+    this.surface.doc.transact(() => {
+      this.children.set(element.id, true);
+    });
+  }
+
+  override containsBound(bound: Bound): boolean {
+    return bound.contains(Bound.deserialize(this.xywh));
+  }
+
+  override getLineIntersections(
+    start: IVec,
+    end: IVec
+  ): PointLocation[] | null {
+    const bound = Bound.deserialize(this.xywh);
+    return linePolygonIntersects(start, end, bound.points);
+  }
+
+  removeChild(element: GfxModel) {
+    if (!this.children) {
+      return;
+    }
+    this.surface.doc.transact(() => {
+      this.children.delete(element.id);
+    });
+  }
+
+  override serialize() {
+    const result = super.serialize();
+    return result as SerializedGroupElement;
+  }
+
+  @observe(
+    // use `GroupElementModel` type in decorator will cause playwright error
+    (_, instance: GfxGroupLikeElementModel<GroupElementProps>, transaction) => {
+      if (instance.children.doc) {
+        instance.setChildIds(
+          Array.from(instance.children.keys()),
+          transaction?.local ?? false
+        );
+      }
+    }
+  )
+  @field()
+  accessor children: Y.Map<boolean> = new DocCollection.Y.Map<boolean>();
+
+  @local()
+  accessor showTitle: boolean = true;
+
+  @field()
+  accessor title: Y.Text = new DocCollection.Y.Text();
+}
+
+declare global {
+  namespace BlockSuite {
+    interface SurfaceGroupLikeModelMap {
+      group: GroupElementModel;
+    }
+
+    interface SurfaceElementModelMap {
+      group: GroupElementModel;
+    }
+  }
+}

blocksuite/affine/model/src/elements/group/index.ts

@@ -0,0 +1 @@
+export * from './group.js';

blocksuite/affine/model/src/elements/index.ts

@@ -0,0 +1,6 @@
+export * from './brush/index.js';
+export * from './connector/index.js';
+export * from './group/index.js';
+export * from './mindmap/index.js';
+export * from './shape/index.js';
+export * from './text/index.js';

blocksuite/affine/model/src/elements/mindmap/index.ts

@@ -0,0 +1,2 @@
+export * from './mindmap.js';
+export * from './style.js';

blocksuite/affine/model/src/elements/mindmap/mindmap.ts

@@ -0,0 +1,975 @@
+import type {
+  BaseElementProps,
+  GfxModel,
+  PointTestOptions,
+  SerializedElement,
+} from '@blocksuite/block-std/gfx';
+import {
+  convert,
+  field,
+  GfxGroupLikeElementModel,
+  observe,
+  watch,
+} from '@blocksuite/block-std/gfx';
+import type { Bound, SerializedXYWH, XYWH } from '@blocksuite/global/utils';
+import {
+  assertType,
+  deserializeXYWH,
+  keys,
+  last,
+  noop,
+  pick,
+} from '@blocksuite/global/utils';
+import { DocCollection, type Y } from '@blocksuite/store';
+import { generateKeyBetween } from 'fractional-indexing';
+import { z } from 'zod';
+
+import { ConnectorMode } from '../../consts/connector.js';
+import { LayoutType, MindmapStyle } from '../../consts/mindmap.js';
+import { LocalConnectorElementModel } from '../connector/local-connector.js';
+import type { MindmapStyleGetter } from './style.js';
+import { mindmapStyleGetters } from './style.js';
+import { findInfiniteLoop } from './utils.js';
+
+export type NodeDetail = {
+  /**
+   * The index of the node, it decides the layout order of the node
+   */
+  index: string;
+  parent?: string;
+  collapsed?: boolean;
+};
+
+export type MindmapNode = {
+  id: string;
+  detail: NodeDetail;
+
+  element: BlockSuite.SurfaceElementModel;
+  children: MindmapNode[];
+
+  parent: MindmapNode | null;
+
+  /**
+   * This area is used to determine where to place the dragged node.
+   *
+   * When dragging another node into this area, it will become a sibling of the this node.
+   * But if it is dragged into the small area located right after the this node, it will become a child of the this node.
+   */
+  responseArea?: Bound;
+
+  /**
+   * This property override the preferredDir or default layout direction.
+   * It is used during dragging that would temporary change the layout direction
+   */
+  overriddenDir?: LayoutType;
+};
+
+export type MindmapRoot = MindmapNode & {
+  left: MindmapNode[];
+  right: MindmapNode[];
+};
+
+const baseNodeSchema = z.object({
+  text: z.string(),
+  xywh: z.optional(z.string()),
+});
+
+type Node = z.infer<typeof baseNodeSchema> & {
+  children?: Node[];
+};
+
+const nodeSchema: z.ZodType<Node> = baseNodeSchema.extend({
+  children: z.lazy(() => nodeSchema.array()).optional(),
+});
+
+export type NodeType = z.infer<typeof nodeSchema>;
+
+function isNodeType(node: Record<string, unknown>): node is NodeType {
+  return typeof node.text === 'string' && Array.isArray(node.children);
+}
+
+export type SerializedMindmapElement = SerializedElement & {
+  children: Record<string, NodeDetail>;
+};
+
+type MindmapElementProps = BaseElementProps & {
+  children: Y.Map<NodeDetail>;
+};
+
+function observeChildren(
+  _: unknown,
+  instance: MindmapElementModel,
+  transaction: Y.Transaction | null
+) {
+  if (instance.children.doc) {
+    instance.setChildIds(
+      Array.from(instance.children.keys()),
+      transaction?.local ?? true
+    );
+
+    instance.buildTree();
+    instance.connectors.clear();
+  }
+}
+
+function watchLayoutType(
+  _: unknown,
+  instance: MindmapElementModel,
+  local: boolean
+) {
+  if (!local) {
+    return;
+  }
+
+  instance.surface.doc.transact(() => {
+    instance['_tree']?.children.forEach(child => {
+      if (!instance.children.has(child.id)) {
+        return;
+      }
+
+      instance.children.set(child.id, {
+        index: child.detail.index,
+        parent: child.detail.parent,
+      });
+    });
+  });
+
+  instance.buildTree();
+}
+
+function watchStyle(_: unknown, instance: MindmapElementModel, local: boolean) {
+  if (!local) return;
+  instance.layout();
+}
+
+export class MindmapElementModel extends GfxGroupLikeElementModel<MindmapElementProps> {
+  private _layout: MindmapElementModel['layout'] | null = null;
+
+  private _nodeMap = new Map<string, MindmapNode>();
+
+  private _queueBuildTree = false;
+
+  private _queuedLayout = false;
+
+  private _stashedNode = new Set<string>();
+
+  private _tree!: MindmapRoot;
+
+  connectors = new Map<string, LocalConnectorElementModel>();
+
+  get nodeMap() {
+    return this._nodeMap;
+  }
+
+  override get rotate() {
+    return 0;
+  }
+
+  override set rotate(_: number) {}
+
+  get styleGetter(): MindmapStyleGetter {
+    return mindmapStyleGetters[this.style];
+  }
+
+  get tree() {
+    return this._tree;
+  }
+
+  get type() {
+    return 'mindmap';
+  }
+
+  static override propsToY(props: Record<string, unknown>) {
+    if (
+      props.children &&
+      !isNodeType(props.children as Record<string, unknown>) &&
+      !(props.children instanceof DocCollection.Y.Map)
+    ) {
+      const children: Y.Map<NodeDetail> = new DocCollection.Y.Map();
+
+      keys(props.children).forEach(key => {
+        const detail = pick<Record<string, unknown>, keyof NodeDetail>(
+          props.children![key],
+          ['index', 'parent']
+        );
+        children.set(key as string, detail as NodeDetail);
+      });
+
+      props.children = children;
+    }
+
+    return props as MindmapElementProps;
+  }
+
+  private _cfgBalanceLayoutDir() {
+    if (this.layoutType !== LayoutType.BALANCE) {
+      return;
+    }
+
+    const tree = this._tree;
+    const splitPoint = Math.ceil(tree.children.length / 2);
+
+    tree.right.push(...tree.children.slice(0, splitPoint));
+    tree.left.push(...tree.children.slice(splitPoint));
+    tree.left.reverse();
+  }
+
+  private _isConnectorOutdated(
+    options:
+      | {
+          connector: LocalConnectorElementModel;
+          from: MindmapNode;
+          to: MindmapNode;
+          layout: LayoutType;
+        }
+      | {
+          connector: LocalConnectorElementModel;
+          from: MindmapNode;
+          layout: LayoutType;
+          collapsed: boolean;
+        },
+    updateKey: boolean = true
+  ) {
+    const collapsed = 'collapsed' in options;
+    const { connector, from, layout } = options;
+
+    if (!from.element || (!collapsed && !options.to.element)) {
+      return { outdated: true, cacheKey: '' };
+    }
+
+    const cacheKey = collapsed
+      ? `${from.element.xywh}-collapsed-${layout}-${this.style}`
+      : `${from.element.xywh}-${options.to.element.xywh}-${layout}-${this.style}`;
+
+    if (connector.cache.get('MINDMAP_CONNECTOR') === cacheKey) {
+      return false;
+    } else if (updateKey) {
+      connector.cache.set('MINDMAP_CONNECTOR', cacheKey);
+    }
+
+    return true;
+  }
+
+  protected override _getXYWH(): Bound {
+    return super._getXYWH();
+  }
+
+  /**
+   * @deprecated
+   * you should not call this method directly
+   */
+  addChild(_element: GfxModel) {
+    noop();
+  }
+
+  addNode(
+    /**
+     * The parent node id of the new node. If it's null, the node will be the root node
+     */
+    parent: string | MindmapNode | null,
+    sibling?: string | number,
+    position: 'before' | 'after' = 'after',
+    props: Record<string, unknown> = {}
+  ) {
+    if (parent && typeof parent !== 'string') {
+      parent = parent.id;
+    }
+
+    assertType<string | null>(parent);
+
+    if (parent && !this._nodeMap.has(parent)) {
+      throw new Error(`Parent node ${parent} not found`);
+    }
+
+    props['text'] = new DocCollection.Y.Text(
+      (props['text'] as string) ?? 'New node'
+    );
+
+    const type = (props.type as string) ?? 'shape';
+    let id: string;
+    this.surface.doc.transact(() => {
+      const parentNode = parent ? this._nodeMap.get(parent)! : null;
+
+      if (parentNode) {
+        let index = last(parentNode.children)
+          ? generateKeyBetween(last(parentNode.children)!.detail.index, null)
+          : 'a0';
+
+        sibling = sibling ?? last(parentNode.children)?.id;
+        const siblingNode =
+          typeof sibling === 'number'
+            ? parentNode.children[sibling]
+            : sibling
+              ? this._nodeMap.get(sibling)
+              : undefined;
+        const path = siblingNode
+          ? this.getPath(siblingNode)
+          : this.getPath(parentNode).concat([0]);
+        const style = this.styleGetter.getNodeStyle(
+          siblingNode ?? parentNode,
+          path
+        );
+
+        id = this.surface.addElement({
+          type,
+          xywh: '[0,0,100,30]',
+          maxWidth: false,
+          ...props,
+          ...style.node,
+        });
+
+        if (siblingNode) {
+          const siblingIndex = parentNode.children.findIndex(
+            val => val.id === sibling
+          );
+
+          index =
+            position === 'after'
+              ? generateKeyBetween(
+                  siblingNode.detail.index,
+                  parentNode.children[siblingIndex + 1]?.detail.index ?? null
+                )
+              : generateKeyBetween(
+                  parentNode.children[siblingIndex - 1]?.detail.index ?? null,
+                  siblingNode.detail.index
+                );
+        }
+
+        const nodeDetail: NodeDetail = {
+          index,
+          parent: parent!,
+        };
+
+        this.children.set(id, nodeDetail);
+      } else {
+        const rootStyle = this.styleGetter.root;
+
+        id = this.surface.addElement({
+          type,
+          xywh: '[0,0,113,41]',
+          maxWidth: false,
+          ...props,
+          ...rootStyle,
+        });
+
+        this.children.clear();
+        this.children.set(id, {
+          index: 'a0',
+        });
+      }
+    });
+    this.layout();
+
+    return id!;
+  }
+
+  buildTree() {
+    const mindmapNodeMap = new Map<string, MindmapNode>();
+    const nodesMap = this.children;
+
+    // The element may be removed
+    if (!nodesMap || nodesMap.size === 0) {
+      this._nodeMap = mindmapNodeMap;
+      // @ts-expect-error FIXME: ts error
+      this._tree = null;
+      return;
+    }
+
+    let rootNode: MindmapRoot | undefined;
+
+    nodesMap.forEach((val, id) => {
+      if (!mindmapNodeMap.has(id)) {
+        mindmapNodeMap.set(id, {
+          id,
+          index: val.index,
+          detail: val,
+          element: this.surface.getElementById(id)!,
+          children: [],
+          parent: null,
+        } as MindmapNode);
+      }
+
+      const node = mindmapNodeMap.get(id)!;
+
+      // some node may be already created during
+      // iterating its children
+      if (!node.detail) {
+        node.detail = val;
+      }
+
+      if (!val.parent) {
+        rootNode = node as MindmapRoot;
+        rootNode.left = [];
+        rootNode.right = [];
+      } else {
+        if (!mindmapNodeMap.has(val.parent)) {
+          mindmapNodeMap.set(val.parent, {
+            id: val.parent,
+            detail: nodesMap.get(val.parent)!,
+            parent: null,
+            children: [],
+            element: this.surface.getElementById(val.parent)!,
+          } as MindmapNode);
+        }
+
+        const parent = mindmapNodeMap.get(val.parent)!;
+        parent.children.push(node);
+        node.parent = parent;
+      }
+    });
+
+    mindmapNodeMap.forEach(node => {
+      node.children.sort((a, b) =>
+        a.detail.index === b.detail.index
+          ? 0
+          : a.detail.index > b.detail.index
+            ? 1
+            : -1
+      );
+    });
+
+    if (!rootNode) {
+      return;
+    }
+
+    const loops = findInfiniteLoop(rootNode, mindmapNodeMap);
+
+    if (loops.length) {
+      this.surface.doc.withoutTransact(() => {
+        loops.forEach(loop => {
+          if (loop.detached) {
+            loop.chain.forEach(node => {
+              this.children.delete(node.id);
+            });
+          } else {
+            const child = last(loop.chain);
+
+            if (child) {
+              this.children.set(child.id, {
+                index: child.detail.index,
+              });
+            }
+          }
+        });
+      });
+      return;
+    }
+
+    this._nodeMap = mindmapNodeMap;
+    this._tree = rootNode;
+
+    if (this.layoutType === LayoutType.BALANCE) {
+      this._cfgBalanceLayoutDir();
+    } else {
+      this._tree[this.layoutType === LayoutType.RIGHT ? 'right' : 'left'] =
+        this._tree.children;
+    }
+  }
+
+  /**
+   *
+   * @param subtree The subtree of root, this only take effects when the layout type is BALANCED.
+   * @returns
+   */
+  getChildNodes(id: string, subtree?: 'left' | 'right') {
+    const node = this._nodeMap.get(id);
+
+    if (!node) {
+      return [];
+    }
+
+    if (subtree && id === this._tree.id) {
+      return this._tree[subtree];
+    }
+
+    return node.children;
+  }
+
+  /**
+   * Get all the connectors start from the given node
+   * @param node
+   * @returns
+   */
+  getConnectors(node: MindmapNode) {
+    if (!this._nodeMap.has(node.id)) {
+      return null;
+    }
+
+    if (node.detail.collapsed) {
+      const id = `#${node.id}-collapsed`;
+      const layout = this.getLayoutDir(node)!;
+      const connector =
+        this.connectors.get(id) ?? new LocalConnectorElementModel(this.surface);
+      const connectorExist = this.connectors.has(id);
+      const connectorStyle = this.styleGetter.getNodeStyle(
+        node,
+        this.getPath(node).concat([0])
+      ).connector;
+      const outdated = this._isConnectorOutdated({
+        connector,
+        from: node,
+        collapsed: true,
+        layout,
+      });
+
+      if (!connectorExist) {
+        connector.id = id;
+        this.connectors.set(id, connector);
+      }
+
+      if (outdated) {
+        const nodeBound = node.element.elementBound;
+        connector.id = id;
+        connector.source = {
+          id: node.id,
+          position: layout === LayoutType.LEFT ? [0, 0.5] : [1, 0.5],
+        };
+        connector.target = {
+          position:
+            layout === LayoutType.LEFT
+              ? [nodeBound.x - 6, nodeBound.y + nodeBound.h / 2]
+              : [nodeBound.x + nodeBound.w + 6, nodeBound.y + nodeBound.h / 2],
+        };
+
+        Object.entries(connectorStyle).forEach(([key, value]) => {
+          // @ts-expect-error FIXME: ts error
+          connector[key as unknown] = value;
+        });
+
+        connector.mode = ConnectorMode.Straight;
+      }
+
+      return [{ outdated, connector }];
+    } else {
+      const from = node;
+      return from.children.map(to => {
+        const layout = this.getLayoutDir(to)!;
+        const id = `#${from.id}-${to.id}`;
+        const connectorExist = this.connectors.has(id);
+        const connectorStyle = this.styleGetter.getNodeStyle(
+          to,
+          this.getPath(to)
+        ).connector;
+        const connector =
+          this.connectors.get(id) ??
+          new LocalConnectorElementModel(this.surface);
+        const outdated = this._isConnectorOutdated({
+          connector,
+          from,
+          to,
+          layout,
+        });
+
+        if (!connectorExist) {
+          connector.id = id;
+          this.connectors.set(id, connector);
+        }
+
+        if (outdated) {
+          connector.source = {
+            id: from.id,
+            position: layout === LayoutType.RIGHT ? [1, 0.5] : [0, 0.5],
+          };
+          connector.target = {
+            id: to.id,
+            position: layout === LayoutType.RIGHT ? [0, 0.5] : [1, 0.5],
+          };
+
+          Object.entries(connectorStyle).forEach(([key, value]) => {
+            // @ts-expect-error FIXME: ts error
+            connector[key as unknown] = value;
+          });
+        }
+
+        return { outdated, connector };
+      });
+    }
+  }
+
+  getLayoutDir(node: string | MindmapNode): LayoutType {
+    node = typeof node === 'string' ? this._nodeMap.get(node)! : node;
+
+    assertType<MindmapNode>(node);
+
+    let current: MindmapNode | null = node;
+    const root = this._tree;
+
+    while (current) {
+      if (current.overriddenDir !== undefined) {
+        return current.overriddenDir;
+      }
+
+      const parent: MindmapNode | null = current.detail.parent
+        ? (this._nodeMap.get(current.detail.parent) ?? null)
+        : null;
+
+      if (parent === root) {
+        return (
+          parent.overriddenDir ??
+          (root.left.includes(current)
+            ? LayoutType.LEFT
+            : root.right.includes(current)
+              ? LayoutType.RIGHT
+              : this.layoutType)
+        );
+      }
+
+      current = parent;
+    }
+
+    return this.layoutType;
+  }
+
+  getNode(id: string) {
+    return this._nodeMap.get(id) ?? null;
+  }
+
+  getParentNode(id: string) {
+    const node = this.children.get(id);
+
+    return node?.parent ? (this._nodeMap.get(node.parent) ?? null) : null;
+  }
+
+  /**
+   * Path is an array of indexes that represent the path from the root node to the target node.
+   * The first element of the array is always 0, which represents the root node.
+   * @param element
+   * @returns
+   *
+   * @example
+   * ```ts
+   * const path = mindmap.getPath('nodeId');
+   * // [0, 1, 2]
+   * ```
+   */
+  getPath(element: string | MindmapNode) {
+    let node = this._nodeMap.get(
+      typeof element === 'string' ? element : element.id
+    );
+
+    if (!node) {
+      throw new Error('Node not found');
+    }
+
+    const path: number[] = [];
+
+    while (node && node !== this._tree) {
+      const parent = this._nodeMap.get(node!.detail.parent!);
+
+      path.unshift(parent!.children.indexOf(node!));
+      node = parent;
+    }
+
+    path.unshift(0);
+
+    return path;
+  }
+
+  getSiblingNode(
+    id: string,
+    direction: 'prev' | 'next' = 'next',
+    /**
+     * The subtree of which that the sibling node belongs to,
+     * this is used when the layout type is BALANCED.
+     */
+    subtree?: 'left' | 'right'
+  ) {
+    const node = this._nodeMap.get(id);
+
+    if (!node) {
+      return null;
+    }
+
+    const parent = this._nodeMap.get(node.detail.parent!);
+
+    if (!parent) {
+      return null;
+    }
+
+    const childrenTree =
+      subtree && parent.id === this._tree.id
+        ? this._tree[subtree]
+        : parent.children;
+    const idx = childrenTree.indexOf(node);
+    if (idx === -1) {
+      return null;
+    }
+    const siblingIndex = direction === 'next' ? idx + 1 : idx - 1;
+    const sibling = childrenTree[siblingIndex] ?? null;
+
+    return sibling;
+  }
+
+  override includesPoint(x: number, y: number, options: PointTestOptions) {
+    const bound = this.elementBound;
+
+    bound.x -= options.responsePadding?.[0] ?? 0;
+    bound.w += (options.responsePadding?.[0] ?? 0) * 2;
+    bound.y -= options.responsePadding?.[1] ?? 0;
+    bound.h += (options.responsePadding?.[1] ?? 0) * 2;
+
+    return bound.containsPoint([x, y]);
+  }
+
+  layout(
+    _tree: MindmapNode | MindmapRoot = this.tree,
+    _options: {
+      applyStyle?: boolean;
+      layoutType?: LayoutType;
+      calculateTreeBound?: boolean;
+      stashed?: boolean;
+    } = {
+      applyStyle: true,
+      calculateTreeBound: true,
+      stashed: true,
+    }
+  ) {
+    // should be implemented by the view
+    // otherwise, it would be just an empty function
+    if (this._layout) {
+      this._layout(_tree, _options);
+    }
+  }
+
+  moveTo(targetXYWH: SerializedXYWH | XYWH) {
+    const { x, y } = this;
+    const targetPos =
+      typeof targetXYWH === 'string' ? deserializeXYWH(targetXYWH) : targetXYWH;
+    const offsetX = targetPos[0] - x;
+    const offsetY = targetPos[1] - y + targetPos[3];
+
+    this.surface.doc.transact(() => {
+      this.childElements.forEach(el => {
+        const deserializedXYWH = deserializeXYWH(el.xywh);
+
+        el.xywh =
+          `[${deserializedXYWH[0] + offsetX},${deserializedXYWH[1] + offsetY},${deserializedXYWH[2]},${deserializedXYWH[3]}]` as SerializedXYWH;
+      });
+    });
+  }
+
+  override onCreated(): void {
+    this.buildTree();
+  }
+
+  removeChild(element: GfxModel) {
+    if (!this._nodeMap.has(element.id)) {
+      return;
+    }
+
+    const surface = this.surface;
+    const removedDescendants: string[] = [];
+    const remove = (node: MindmapNode) => {
+      node.children?.forEach(child => {
+        remove(child);
+      });
+
+      this.children?.delete(node.id);
+      removedDescendants.push(node.id);
+    };
+
+    surface.doc.transact(() => {
+      remove(this._nodeMap.get(element.id)!);
+    });
+
+    queueMicrotask(() => {
+      removedDescendants.forEach(id => surface.deleteElement(id));
+    });
+
+    // This transaction may not end
+    // force to build the elements
+    this.buildTree();
+    this.requestLayout();
+  }
+
+  protected requestBuildTree() {
+    if (this._queueBuildTree) {
+      return;
+    }
+
+    this._queueBuildTree = true;
+    queueMicrotask(() => {
+      this.buildTree();
+      this._queueBuildTree = false;
+    });
+  }
+
+  requestLayout() {
+    if (!this._queuedLayout) {
+      this._queuedLayout = true;
+
+      queueMicrotask(() => {
+        this.layout();
+        this._queuedLayout = false;
+      });
+    }
+  }
+
+  override serialize() {
+    const result = super.serialize();
+    return result as SerializedMindmapElement;
+  }
+
+  setLayoutMethod(layoutMethod: MindmapElementModel['layout']) {
+    this._layout = layoutMethod;
+  }
+
+  /**
+   * Stash mind map node and its children's xywh property
+   * @param node
+   * @returns a function that write back the stashed xywh into yjs
+   */
+  stashTree(node: MindmapNode | string) {
+    const mindNode = typeof node === 'string' ? this.getNode(node) : node;
+
+    if (!mindNode || this._stashedNode.has(mindNode.id)) {
+      return;
+    }
+
+    const stashed = new Set<BlockSuite.SurfaceElementModel>();
+    const traverse = (node: MindmapNode) => {
+      node.element.stash('xywh');
+      stashed.add(node.element);
+
+      if (node.children.length) {
+        node.children.forEach(child => traverse(child));
+      }
+    };
+
+    traverse(mindNode);
+
+    return () => {
+      this._stashedNode.delete(mindNode.id);
+      stashed.forEach(el => {
+        el.pop('xywh');
+      });
+    };
+  }
+
+  toggleCollapse(node: MindmapNode, options: { layout?: boolean } = {}) {
+    if (!this._nodeMap.has(node.id)) {
+      return;
+    }
+
+    const { layout = false } = options;
+
+    if (node && node.children.length > 0) {
+      const collapsed = node.detail.collapsed ? false : true;
+      const isExpand = !collapsed;
+
+      const changeNodesVisibility = (node: MindmapNode) => {
+        node.element.hidden = collapsed;
+
+        if (isExpand && node.detail.collapsed) {
+          return;
+        }
+
+        node.children.forEach(child => {
+          changeNodesVisibility(child);
+        });
+      };
+
+      node.children.forEach(changeNodesVisibility);
+      this.surface.doc.transact(() => {
+        this.children.set(node.id, {
+          ...node.detail,
+          collapsed,
+        });
+      });
+    }
+
+    if (layout) {
+      this.requestLayout();
+    }
+  }
+
+  traverse(
+    callback: (node: MindmapNode, parent: MindmapNode | null) => void,
+    root: MindmapNode = this._tree,
+    options: { stopOnCollapse?: boolean } = {}
+  ) {
+    const { stopOnCollapse = false } = options;
+    const traverse = (node: MindmapNode, parent: MindmapNode | null) => {
+      callback(node, parent);
+
+      if (stopOnCollapse && node.detail.collapsed) {
+        return;
+      }
+
+      node?.children.forEach(child => {
+        traverse(child, node);
+      });
+    };
+
+    if (root) {
+      traverse(root, null);
+    }
+  }
+
+  @convert((initialValue, instance) => {
+    if (!(initialValue instanceof DocCollection.Y.Map)) {
+      nodeSchema.parse(initialValue);
+
+      assertType<NodeType>(initialValue);
+
+      const map: Y.Map<NodeDetail> = new DocCollection.Y.Map();
+      const surface = instance.surface;
+      const doc = surface.doc;
+      const recursive = (
+        node: NodeType,
+        parent: string | null = null,
+        index: string = 'a0'
+      ) => {
+        const id = surface.addElement({
+          type: 'shape',
+          text: node.text,
+          xywh: node.xywh ? node.xywh : `[0, 0, 100, 30]`,
+        });
+
+        map.set(id, {
+          index,
+          parent: parent ?? undefined,
+        });
+
+        let curIdx = 'a0';
+        node.children?.forEach(childNode => {
+          recursive(childNode, id, curIdx);
+          curIdx = generateKeyBetween(curIdx, null);
+        });
+      };
+
+      doc.transact(() => {
+        recursive(initialValue);
+      });
+
+      instance.requestBuildTree();
+      instance.requestLayout();
+      return map;
+    } else {
+      instance.requestBuildTree();
+      instance.requestLayout();
+      return initialValue;
+    }
+  })
+  // Use extracted function to avoid playwright test failure
+  // since this model package is imported by playwright
+  @observe(observeChildren)
+  @field()
+  accessor children: Y.Map<NodeDetail> = new DocCollection.Y.Map();
+
+  @watch(watchLayoutType)
+  @field()
+  accessor layoutType: LayoutType = LayoutType.RIGHT;
+
+  @watch(watchStyle)
+  @field()
+  accessor style: MindmapStyle = MindmapStyle.ONE;
+}
+
+declare global {
+  namespace BlockSuite {
+    interface SurfaceGroupLikeModelMap {
+      mindmap: MindmapElementModel;
+    }
+  }
+}

blocksuite/affine/model/src/elements/mindmap/style.ts

@@ -0,0 +1,504 @@
+import { isEqual, last } from '@blocksuite/global/utils';
+
+import { ConnectorMode } from '../../consts/connector.js';
+import { LineColor } from '../../consts/line.js';
+import { MindmapStyle } from '../../consts/mindmap.js';
+import { StrokeStyle } from '../../consts/note.js';
+import { ShapeFillColor } from '../../consts/shape.js';
+import { FontFamily, FontWeight, TextResizing } from '../../consts/text.js';
+import type { MindmapNode } from './mindmap.js';
+
+export type CollapseButton = {
+  width: number;
+  height: number;
+  radius: number;
+
+  filled: boolean;
+  fillColor: string;
+
+  strokeColor: string;
+  strokeWidth: number;
+};
+
+export type ExpandButton = CollapseButton & {
+  fontFamily: FontFamily;
+  fontSize: number;
+  fontWeight: FontWeight;
+
+  color: string;
+};
+
+export type NodeStyle = {
+  radius: number;
+
+  strokeWidth: number;
+  strokeColor: string;
+
+  textResizing: TextResizing;
+
+  fontSize: number;
+  fontFamily: string;
+  fontWeight: FontWeight;
+  color: string;
+
+  filled: boolean;
+  fillColor: string;
+
+  padding: [number, number];
+
+  shadow?: {
+    blur: number;
+    offsetX: number;
+    offsetY: number;
+    color: string;
+  };
+};
+
+export type ConnectorStyle = {
+  strokeStyle: StrokeStyle;
+  stroke: string;
+  strokeWidth: number;
+
+  mode: ConnectorMode;
+};
+
+export abstract class MindmapStyleGetter {
+  abstract readonly root: NodeStyle;
+
+  abstract getNodeStyle(
+    node: MindmapNode,
+    path: number[]
+  ): {
+    connector: ConnectorStyle;
+    collapseButton: CollapseButton;
+    expandButton: ExpandButton;
+    node: NodeStyle;
+  };
+}
+
+export class StyleOne extends MindmapStyleGetter {
+  private _colorOrders = [
+    LineColor.Purple,
+    LineColor.Magenta,
+    LineColor.Orange,
+    LineColor.Yellow,
+    LineColor.Green,
+    '#7ae2d5',
+  ];
+
+  readonly root = {
+    radius: 8,
+
+    textResizing: TextResizing.AUTO_WIDTH_AND_HEIGHT,
+
+    strokeWidth: 4,
+    strokeColor: '#84CFFF',
+
+    fontFamily: FontFamily.Poppins,
+    fontSize: 20,
+    fontWeight: FontWeight.SemiBold,
+    color: '--affine-black',
+
+    filled: true,
+    fillColor: '--affine-white',
+
+    padding: [11, 22] as [number, number],
+
+    shadow: {
+      offsetX: 0,
+      offsetY: 6,
+      blur: 12,
+      color: 'rgba(0, 0, 0, 0.14)',
+    },
+  };
+
+  private _getColor(number: number) {
+    return this._colorOrders[number % this._colorOrders.length];
+  }
+
+  getNodeStyle(_: MindmapNode, path: number[]) {
+    const color = this._getColor(path[1] ?? 0);
+
+    return {
+      connector: {
+        strokeStyle: StrokeStyle.Solid,
+        stroke: color,
+        strokeWidth: 3,
+
+        mode: ConnectorMode.Curve,
+      },
+      collapseButton: {
+        width: 16,
+        height: 16,
+        radius: 0.5,
+
+        filled: true,
+        fillColor: '--affine-white',
+
+        strokeColor: color,
+        strokeWidth: 3,
+      },
+      expandButton: {
+        width: 24,
+        height: 24,
+        radius: 8,
+
+        filled: true,
+        fillColor: color,
+
+        strokeColor: color,
+        strokeWidth: 0,
+
+        padding: [4, 0],
+
+        color: '--affine-white',
+
+        fontFamily: FontFamily.Inter,
+        fontWeight: FontWeight.Bold,
+        fontSize: 15,
+      },
+      node: {
+        radius: 8,
+
+        textResizing: TextResizing.AUTO_WIDTH_AND_HEIGHT,
+
+        strokeWidth: 3,
+        strokeColor: color,
+
+        fontFamily: FontFamily.Poppins,
+        fontSize: 16,
+        fontWeight: FontWeight.Medium,
+        color: '--affine-black',
+
+        filled: true,
+        fillColor: '--affine-white',
+
+        padding: [6, 22] as [number, number],
+
+        shadow: {
+          offsetX: 0,
+          offsetY: 6,
+          blur: 12,
+          color: 'rgba(0, 0, 0, 0.14)',
+        },
+      },
+    };
+  }
+}
+export const styleOne = new StyleOne();
+
+export class StyleTwo extends MindmapStyleGetter {
+  private _colorOrders = [
+    ShapeFillColor.Blue,
+    '#7ae2d5',
+    ShapeFillColor.Yellow,
+  ];
+
+  readonly root = {
+    radius: 3,
+
+    textResizing: TextResizing.AUTO_WIDTH_AND_HEIGHT,
+
+    strokeWidth: 3,
+    strokeColor: '--affine-black',
+
+    fontFamily: FontFamily.Poppins,
+    fontSize: 18,
+    fontWeight: FontWeight.SemiBold,
+    color: ShapeFillColor.Black,
+
+    filled: true,
+    fillColor: ShapeFillColor.Orange,
+
+    padding: [11, 22] as [number, number],
+
+    shadow: {
+      blur: 0,
+      offsetX: 3,
+      offsetY: 3,
+      color: '--affine-black',
+    },
+  };
+
+  private _getColor(number: number) {
+    return number >= this._colorOrders.length
+      ? last(this._colorOrders)!
+      : this._colorOrders[number];
+  }
+
+  getNodeStyle(_: MindmapNode, path: number[]) {
+    const color = this._getColor(path.length - 2);
+
+    return {
+      connector: {
+        strokeStyle: StrokeStyle.Solid,
+        stroke: '--affine-black',
+        strokeWidth: 3,
+
+        mode: ConnectorMode.Orthogonal,
+      },
+      collapseButton: {
+        width: 16,
+        height: 16,
+        radius: 0.5,
+
+        filled: true,
+        fillColor: '--affine-white',
+
+        strokeColor: '--affine-black',
+        strokeWidth: 3,
+      },
+      expandButton: {
+        width: 24,
+        height: 24,
+        radius: 2,
+
+        filled: true,
+        fillColor: '--affine-black',
+
+        padding: [4, 0],
+
+        strokeColor: '--affine-black',
+        strokeWidth: 0,
+
+        color: '--affine-white',
+
+        fontFamily: FontFamily.Inter,
+        fontWeight: FontWeight.Bold,
+        fontSize: 15,
+      },
+      node: {
+        radius: 3,
+
+        textResizing: TextResizing.AUTO_WIDTH_AND_HEIGHT,
+
+        strokeWidth: 3,
+        strokeColor: '--affine-black',
+
+        fontFamily: FontFamily.Poppins,
+        fontSize: 16,
+        fontWeight: FontWeight.SemiBold,
+        color: ShapeFillColor.Black,
+
+        filled: true,
+        fillColor: color,
+
+        padding: [6, 22] as [number, number],
+
+        shadow: {
+          blur: 0,
+          offsetX: 3,
+          offsetY: 3,
+          color: '--affine-black',
+        },
+      },
+    };
+  }
+}
+export const styleTwo = new StyleTwo();
+
+export class StyleThree extends MindmapStyleGetter {
+  private _strokeColor = [LineColor.Yellow, LineColor.Green, LineColor.Teal];
+
+  readonly root = {
+    radius: 10,
+
+    textResizing: TextResizing.AUTO_WIDTH_AND_HEIGHT,
+
+    strokeWidth: 0,
+    strokeColor: 'transparent',
+
+    fontFamily: FontFamily.Poppins,
+    fontSize: 16,
+    fontWeight: FontWeight.Medium,
+    color: ShapeFillColor.Black,
+
+    filled: true,
+    fillColor: ShapeFillColor.Yellow,
+
+    padding: [10, 22] as [number, number],
+
+    shadow: {
+      blur: 12,
+      offsetX: 0,
+      offsetY: 0,
+      color: 'rgba(66, 65, 73, 0.18)',
+    },
+  };
+
+  private _getColor(number: number) {
+    return this._strokeColor[number % this._strokeColor.length];
+  }
+
+  override getNodeStyle(_: MindmapNode, path: number[]) {
+    const strokeColor = this._getColor(path.length - 2);
+
+    return {
+      node: {
+        radius: 10,
+
+        textResizing: TextResizing.AUTO_WIDTH_AND_HEIGHT,
+
+        strokeWidth: 2,
+        strokeColor: strokeColor,
+
+        fontFamily: FontFamily.Poppins,
+        fontSize: 16,
+        fontWeight: FontWeight.Medium,
+        color: ShapeFillColor.Black,
+
+        filled: true,
+        fillColor: ShapeFillColor.White,
+
+        padding: [6, 22] as [number, number],
+
+        shadow: {
+          blur: 12,
+          offsetX: 0,
+          offsetY: 0,
+          color: 'rgba(66, 65, 73, 0.18)',
+        },
+      },
+      collapseButton: {
+        width: 16,
+        height: 16,
+        radius: 0.5,
+
+        filled: true,
+        fillColor: '--affine-white',
+
+        strokeColor: '#3CBC36',
+        strokeWidth: 3,
+      },
+      expandButton: {
+        width: 24,
+        height: 24,
+        radius: 8,
+
+        filled: true,
+        fillColor: '#3CBC36',
+
+        padding: [4, 0],
+
+        strokeColor: '#3CBC36',
+        strokeWidth: 0,
+
+        color: '#fff',
+
+        fontFamily: FontFamily.Inter,
+        fontWeight: FontWeight.Bold,
+        fontSize: 15,
+      },
+      connector: {
+        strokeStyle: StrokeStyle.Solid,
+        stroke: strokeColor,
+        strokeWidth: 2,
+
+        mode: ConnectorMode.Curve,
+      },
+    };
+  }
+}
+export const styleThree = new StyleThree();
+
+export class StyleFour extends MindmapStyleGetter {
+  private _colors = [
+    ShapeFillColor.Purple,
+    ShapeFillColor.Magenta,
+    ShapeFillColor.Orange,
+    ShapeFillColor.Yellow,
+    ShapeFillColor.Green,
+    ShapeFillColor.Blue,
+  ];
+
+  readonly root = {
+    radius: 0,
+
+    textResizing: TextResizing.AUTO_WIDTH_AND_HEIGHT,
+
+    strokeWidth: 0,
+    strokeColor: 'transparent',
+
+    fontFamily: FontFamily.Kalam,
+    fontSize: 22,
+    fontWeight: FontWeight.Bold,
+    color: '--affine-black',
+
+    filled: true,
+    fillColor: 'transparent',
+
+    padding: [0, 10] as [number, number],
+  };
+
+  private _getColor(order: number) {
+    return this._colors[order % this._colors.length];
+  }
+
+  getNodeStyle(_: MindmapNode, path: number[]) {
+    const stroke = this._getColor(path[1] ?? 0);
+
+    return {
+      connector: {
+        strokeStyle: StrokeStyle.Solid,
+        stroke,
+        strokeWidth: 3,
+
+        mode: ConnectorMode.Curve,
+      },
+      collapseButton: {
+        width: 16,
+        height: 16,
+        radius: 0.5,
+
+        filled: true,
+        fillColor: '--affine-white',
+
+        strokeColor: stroke,
+        strokeWidth: 3,
+      },
+      expandButton: {
+        width: 24,
+        height: 24,
+        radius: 8,
+
+        filled: true,
+        fillColor: stroke,
+
+        padding: [4, 0],
+
+        strokeColor: stroke,
+        strokeWidth: 0,
+
+        color: '--affine-white',
+
+        fontFamily: FontFamily.Inter,
+        fontWeight: FontWeight.Bold,
+        fontSize: 15,
+      },
+      node: {
+        ...this.root,
+
+        fontSize: 18,
+        padding: [1.5, 10] as [number, number],
+      },
+    };
+  }
+}
+export const styleFour = new StyleFour();
+
+export const mindmapStyleGetters: Record<MindmapStyle, MindmapStyleGetter> = {
+  [MindmapStyle.ONE]: styleOne,
+  [MindmapStyle.TWO]: styleTwo,
+  [MindmapStyle.THREE]: styleThree,
+  [MindmapStyle.FOUR]: styleFour,
+};
+
+export const applyNodeStyle = (node: MindmapNode, nodeStyle: NodeStyle) => {
+  Object.entries(nodeStyle).forEach(([key, value]) => {
+    // @ts-expect-error FIXME: ts error
+    if (!isEqual(node.element[key], value)) {
+      // @ts-expect-error FIXME: ts error
+      node.element[key] = value;
+    }
+  });
+};

blocksuite/affine/model/src/elements/mindmap/utils.ts

@@ -0,0 +1,46 @@
+import type { MindmapNode } from './mindmap.js';
+
+export function findInfiniteLoop(
+  root: MindmapNode,
+  nodeMap: Map<string, MindmapNode>
+) {
+  const visited = new Set<string>();
+  const loop: {
+    detached: boolean;
+    chain: MindmapNode[];
+  }[] = [];
+
+  const traverse = (
+    node: MindmapNode,
+    traverseChain: MindmapNode[] = [],
+    detached = false
+  ) => {
+    if (visited.has(node.id)) {
+      loop.push({
+        detached,
+        chain: traverseChain,
+      });
+      return;
+    }
+
+    visited.add(node.id);
+
+    traverseChain.push(node);
+
+    node.children.forEach(child =>
+      traverse(child, traverseChain.slice(), detached)
+    );
+  };
+
+  traverse(root);
+
+  nodeMap.forEach(node => {
+    if (visited.has(node.id)) {
+      return;
+    }
+
+    traverse(node, [], true);
+  });
+
+  return loop;
+}

blocksuite/affine/model/src/elements/shape/api/diamond.ts

@@ -0,0 +1,120 @@
+import type { PointTestOptions } from '@blocksuite/block-std/gfx';
+import type { IBound, IVec } from '@blocksuite/global/utils';
+import {
+  Bound,
+  getCenterAreaBounds,
+  getPointsFromBoundWithRotation,
+  linePolygonIntersects,
+  pointInPolygon,
+  PointLocation,
+  pointOnPolygonStoke,
+  polygonGetPointTangent,
+  polygonNearestPoint,
+  rotatePoints,
+} from '@blocksuite/global/utils';
+
+import { DEFAULT_CENTRAL_AREA_RATIO } from '../../../consts/index.js';
+import type { ShapeElementModel } from '../shape.js';
+
+export const diamond = {
+  points({ x, y, w, h }: IBound): IVec[] {
+    return [
+      [x, y + h / 2],
+      [x + w / 2, y],
+      [x + w, y + h / 2],
+      [x + w / 2, y + h],
+    ];
+  },
+  draw(ctx: CanvasRenderingContext2D, { x, y, w, h, rotate = 0 }: IBound) {
+    const cx = x + w / 2;
+    const cy = y + h / 2;
+
+    ctx.save();
+    ctx.translate(cx, cy);
+    ctx.rotate((rotate * Math.PI) / 180);
+    ctx.translate(-cx, -cy);
+
+    ctx.beginPath();
+    ctx.moveTo(x, y + h / 2);
+    ctx.lineTo(x + w / 2, y);
+    ctx.lineTo(x + w, y + h / 2);
+    ctx.lineTo(x + w / 2, y + h);
+    ctx.closePath();
+
+    ctx.restore();
+  },
+
+  includesPoint(
+    this: ShapeElementModel,
+    x: number,
+    y: number,
+    options: PointTestOptions
+  ) {
+    const point: IVec = [x, y];
+    const points = getPointsFromBoundWithRotation(this, diamond.points);
+
+    let hit = pointOnPolygonStoke(
+      point,
+      points,
+      (options?.hitThreshold ?? 1) / (options.zoom ?? 1)
+    );
+
+    if (!hit) {
+      if (!options.ignoreTransparent || this.filled) {
+        hit = pointInPolygon([x, y], points);
+      } else {
+        // If shape is not filled or transparent
+        const text = this.text;
+        if (!text || !text.length) {
+          // Check the center area of the shape
+          const centralBounds = getCenterAreaBounds(
+            this,
+            DEFAULT_CENTRAL_AREA_RATIO
+          );
+          const centralPoints = getPointsFromBoundWithRotation(
+            centralBounds,
+            diamond.points
+          );
+          hit = pointInPolygon(point, centralPoints);
+        } else if (this.textBound) {
+          hit = pointInPolygon(
+            point,
+            getPointsFromBoundWithRotation(
+              this,
+              () => Bound.from(this.textBound!).points
+            )
+          );
+        }
+      }
+    }
+
+    return hit;
+  },
+
+  containsBound(bounds: Bound, element: ShapeElementModel) {
+    const points = getPointsFromBoundWithRotation(element, diamond.points);
+    return points.some(point => bounds.containsPoint(point));
+  },
+
+  getNearestPoint(point: IVec, element: ShapeElementModel) {
+    const points = getPointsFromBoundWithRotation(element, diamond.points);
+    return polygonNearestPoint(points, point);
+  },
+
+  getLineIntersections(start: IVec, end: IVec, element: ShapeElementModel) {
+    const points = getPointsFromBoundWithRotation(element, diamond.points);
+    return linePolygonIntersects(start, end, points);
+  },
+
+  getRelativePointLocation(position: IVec, element: ShapeElementModel) {
+    const bound = Bound.deserialize(element.xywh);
+    const point = bound.getRelativePoint(position);
+    let points = diamond.points(bound);
+    points.push(point);
+
+    points = rotatePoints(points, bound.center, element.rotate);
+    const rotatePoint = points.pop() as IVec;
+    const tangent = polygonGetPointTangent(points, rotatePoint);
+    return new PointLocation(rotatePoint, tangent);
+  },
+};

blocksuite/affine/model/src/elements/shape/api/ellipse.ts

@@ -0,0 +1,202 @@
+import type { PointTestOptions } from '@blocksuite/block-std/gfx';
+import {
+  Bound,
+  clamp,
+  getPointsFromBoundWithRotation,
+  type IBound,
+  type IVec,
+  lineEllipseIntersects,
+  pointInEllipse,
+  pointInPolygon,
+  PointLocation,
+  rotatePoints,
+  toRadian,
+  Vec,
+} from '@blocksuite/global/utils';
+
+import { DEFAULT_CENTRAL_AREA_RATIO } from '../../../consts/index.js';
+import type { ShapeElementModel } from '../shape.js';
+
+export const ellipse = {
+  points({ x, y, w, h }: IBound): IVec[] {
+    return [
+      [x, y + h / 2],
+      [x + w / 2, y],
+      [x + w, y + h / 2],
+      [x + w / 2, y + h],
+    ];
+  },
+  draw(ctx: CanvasRenderingContext2D, { x, y, w, h, rotate = 0 }: IBound) {
+    const cx = x + w / 2;
+    const cy = y + h / 2;
+
+    ctx.save();
+    ctx.translate(cx, cy);
+    ctx.rotate((rotate * Math.PI) / 180);
+    ctx.translate(-cx, -cy);
+
+    ctx.beginPath();
+    ctx.ellipse(cx, cy, w / 2, h / 2, 0, 0, 2 * Math.PI);
+
+    ctx.restore();
+  },
+  includesPoint(
+    this: ShapeElementModel,
+    x: number,
+    y: number,
+    options: PointTestOptions
+  ) {
+    const point: IVec = [x, y];
+    const expand = (options?.hitThreshold ?? 1) / (options?.zoom ?? 1);
+    const rx = this.w / 2;
+    const ry = this.h / 2;
+    const center: IVec = [this.x + rx, this.y + ry];
+    const rad = (this.rotate * Math.PI) / 180;
+
+    let hit =
+      pointInEllipse(point, center, rx + expand, ry + expand, rad) &&
+      !pointInEllipse(point, center, rx - expand, ry - expand, rad);
+
+    if (!hit) {
+      if (!options.ignoreTransparent || this.filled) {
+        hit = pointInEllipse(point, center, rx, ry, rad);
+      } else {
+        // If shape is not filled or transparent
+        const text = this.text;
+        if (!text || !text.length) {
+          // Check the center area of the shape
+          const centralRx = rx * DEFAULT_CENTRAL_AREA_RATIO;
+          const centralRy = ry * DEFAULT_CENTRAL_AREA_RATIO;
+          hit = pointInEllipse(point, center, centralRx, centralRy, rad);
+        } else if (this.textBound) {
+          hit = pointInPolygon(
+            point,
+            getPointsFromBoundWithRotation(
+              this,
+              () => Bound.from(this.textBound!).points
+            )
+          );
+        }
+      }
+    }
+
+    return hit;
+  },
+  containsBound(bounds: Bound, element: ShapeElementModel): boolean {
+    const points = getPointsFromBoundWithRotation(element, ellipse.points);
+    return points.some(point => bounds.containsPoint(point));
+  },
+
+  // See links:
+  // * https://github.com/0xfaded/ellipse_demo/issues/1
+  // * https://blog.chatfield.io/simple-method-for-distance-to-ellipse/
+  // * https://gist.github.com/fundon/11331322d3ca223c42e216df48c339e1
+  // * https://github.com/excalidraw/excalidraw/blob/master/packages/utils/geometry/geometry.ts#L888 (MIT)
+  getNearestPoint(point: IVec, { rotate, xywh }: ShapeElementModel) {
+    const { center, w, h } = Bound.deserialize(xywh);
+    const rad = toRadian(rotate);
+    const a = w / 2;
+    const b = h / 2;
+
+    // Use the center of the ellipse as the origin
+    const [rotatedPointX, rotatedPointY] = Vec.rot(
+      Vec.sub(point, center),
+      -rad
+    );
+
+    const px = Math.abs(rotatedPointX);
+    const py = Math.abs(rotatedPointY);
+
+    let tx = Math.SQRT1_2; // 0.707
+    let ty = Math.SQRT1_2; // 0.707
+    let i = 0;
+
+    for (; i < 3; i++) {
+      const x = a * tx;
+      const y = b * ty;
+
+      const ex = ((a * a - b * b) * tx ** 3) / a;
+      const ey = ((b * b - a * a) * ty ** 3) / b;
+
+      const rx = x - ex;
+      const ry = y - ey;
+
+      const qx = px - ex;
+      const qy = py - ey;
+
+      const r = Math.hypot(ry, rx);
+      const q = Math.hypot(qy, qx);
+
+      tx = clamp(((qx * r) / q + ex) / a, 0, 1);
+      ty = clamp(((qy * r) / q + ey) / b, 0, 1);
+      const t = Math.hypot(ty, tx);
+      tx /= t;
+      ty /= t;
+    }
+
+    return Vec.add(
+      Vec.rot(
+        [a * tx * Math.sign(rotatedPointX), b * ty * Math.sign(rotatedPointY)],
+        rad
+      ),
+      center
+    );
+  },
+
+  getLineIntersections(
+    start: IVec,
+    end: IVec,
+    { rotate, xywh }: ShapeElementModel
+  ) {
+    const rad = toRadian(rotate);
+    const bound = Bound.deserialize(xywh);
+    return lineEllipseIntersects(
+      start,
+      end,
+      bound.center,
+      bound.w / 2,
+      bound.h / 2,
+      rad
+    );
+  },
+
+  getRelativePointLocation(
+    relativePoint: IVec,
+    { rotate, xywh }: ShapeElementModel
+  ) {
+    const bounds = Bound.deserialize(xywh);
+    const point = bounds.getRelativePoint(relativePoint);
+    const { x, y, w, h, center } = bounds;
+    const points = rotatePoints(
+      [
+        [x, y],
+        [x + w / 2, y],
+        [x + w, y],
+        [x + w, y + h / 2],
+        [x + w, y + h],
+        [x + w / 2, y + h],
+        [x, y + h],
+        [x, y + h / 2],
+        point,
+      ],
+      center,
+      rotate
+    );
+    const rotatedPoint = points.pop() as IVec;
+    const len = points.length;
+    let tangent: IVec = [0, 0.5];
+    let i = 0;
+
+    for (; i < len; i++) {
+      const p0 = points[i];
+      const p1 = points[(i + 1) % len];
+      const bounds = Bound.fromPoints([p0, p1, center]);
+      if (bounds.containsPoint(rotatedPoint)) {
+        tangent = Vec.normalize(Vec.sub(p1, p0));
+        break;
+      }
+    }
+
+    return new PointLocation(rotatedPoint, tangent);
+  },
+};

blocksuite/affine/model/src/elements/shape/api/index.ts

@@ -0,0 +1,12 @@
+import type { ShapeType } from '../../../consts/shape.js';
+import { diamond } from './diamond.js';
+import { ellipse } from './ellipse.js';
+import { rect } from './rect.js';
+import { triangle } from './triangle.js';
+
+export const shapeMethods: Record<ShapeType, typeof rect> = {
+  rect,
+  triangle,
+  ellipse,
+  diamond,
+};

blocksuite/affine/model/src/elements/shape/api/rect.ts

@@ -0,0 +1,119 @@
+import type { PointTestOptions } from '@blocksuite/block-std/gfx';
+import type { IBound, IVec } from '@blocksuite/global/utils';
+import {
+  Bound,
+  getCenterAreaBounds,
+  getPointsFromBoundWithRotation,
+  linePolygonIntersects,
+  pointInPolygon,
+  PointLocation,
+  pointOnPolygonStoke,
+  polygonGetPointTangent,
+  polygonNearestPoint,
+  rotatePoints,
+} from '@blocksuite/global/utils';
+
+import { DEFAULT_CENTRAL_AREA_RATIO } from '../../../consts/index.js';
+import type { ShapeElementModel } from '../shape.js';
+
+export const rect = {
+  points({ x, y, w, h }: IBound) {
+    return [
+      [x, y],
+      [x + w, y],
+      [x + w, y + h],
+      [x, y + h],
+    ];
+  },
+  draw(ctx: CanvasRenderingContext2D, { x, y, w, h, rotate = 0 }: IBound) {
+    ctx.save();
+    ctx.translate(x + w / 2, y + h / 2);
+    ctx.rotate((rotate * Math.PI) / 180);
+    ctx.translate(-x - w / 2, -y - h / 2);
+    ctx.rect(x, y, w, h);
+    ctx.restore();
+  },
+  includesPoint(
+    this: ShapeElementModel,
+    x: number,
+    y: number,
+    options: PointTestOptions
+  ) {
+    const point: IVec = [x, y];
+    const points = getPointsFromBoundWithRotation(
+      this,
+      undefined,
+      options.responsePadding
+    );
+
+    let hit = pointOnPolygonStoke(
+      point,
+      points,
+      (options?.hitThreshold ?? 1) / (options.zoom ?? 1)
+    );
+
+    if (!hit) {
+      // If the point is not on the stroke, check if it is in the shape
+      // When the shape is filled and transparent is not ignored
+      if (!options.ignoreTransparent || this.filled) {
+        hit = pointInPolygon([x, y], points);
+      } else {
+        // If shape is not filled or transparent
+        // Check if hit the text area
+        const text = this.text;
+        if (!text || !text.length) {
+          // if not, check the default center area of the shape
+          const centralBounds = getCenterAreaBounds(
+            this,
+            DEFAULT_CENTRAL_AREA_RATIO
+          );
+          const centralPoints = getPointsFromBoundWithRotation(centralBounds);
+          // Check if the point is in the center area
+          hit = pointInPolygon([x, y], centralPoints);
+        } else if (this.textBound) {
+          hit = pointInPolygon(
+            point,
+            getPointsFromBoundWithRotation(
+              this,
+              () => Bound.from(this.textBound!).points
+            )
+          );
+        }
+      }
+    }
+
+    return hit;
+  },
+
+  containsBound(bounds: Bound, element: ShapeElementModel): boolean {
+    const points = getPointsFromBoundWithRotation(element);
+    return points.some(point => bounds.containsPoint(point));
+  },
+
+  getNearestPoint(point: IVec, element: ShapeElementModel) {
+    const points = getPointsFromBoundWithRotation(element);
+    return polygonNearestPoint(points, point);
+  },
+
+  getLineIntersections(start: IVec, end: IVec, element: ShapeElementModel) {
+    const points = getPointsFromBoundWithRotation(element);
+    return linePolygonIntersects(start, end, points);
+  },
+
+  getRelativePointLocation(relativePoint: IVec, element: ShapeElementModel) {
+    const bound = Bound.deserialize(element.xywh);
+    const point = bound.getRelativePoint(relativePoint);
+    const rotatePoint = rotatePoints(
+      [point],
+      bound.center,
+      element.rotate ?? 0
+    )[0];
+    const points = rotatePoints(
+      bound.points,
+      bound.center,
+      element.rotate ?? 0
+    );
+    const tangent = polygonGetPointTangent(points, rotatePoint);
+    return new PointLocation(rotatePoint, tangent);
+  },
+};

blocksuite/affine/model/src/elements/shape/api/triangle.ts

@@ -0,0 +1,116 @@
+import type { PointTestOptions } from '@blocksuite/block-std/gfx';
+import type { IBound, IVec } from '@blocksuite/global/utils';
+import {
+  Bound,
+  getCenterAreaBounds,
+  getPointsFromBoundWithRotation,
+  linePolygonIntersects,
+  pointInPolygon,
+  PointLocation,
+  pointOnPolygonStoke,
+  polygonGetPointTangent,
+  polygonNearestPoint,
+  rotatePoints,
+} from '@blocksuite/global/utils';
+
+import { DEFAULT_CENTRAL_AREA_RATIO } from '../../../consts/index.js';
+import type { ShapeElementModel } from '../shape.js';
+
+export const triangle = {
+  points({ x, y, w, h }: IBound): IVec[] {
+    return [
+      [x, y + h],
+      [x + w / 2, y],
+      [x + w, y + h],
+    ];
+  },
+  draw(ctx: CanvasRenderingContext2D, { x, y, w, h, rotate = 0 }: IBound) {
+    const cx = x + w / 2;
+    const cy = y + h / 2;
+
+    ctx.save();
+    ctx.translate(cx, cy);
+    ctx.rotate((rotate * Math.PI) / 180);
+    ctx.translate(-cx, -cy);
+
+    ctx.beginPath();
+    ctx.moveTo(x, y + h);
+    ctx.lineTo(x + w / 2, y);
+    ctx.lineTo(x + w, y + h);
+    ctx.closePath();
+
+    ctx.restore();
+  },
+  includesPoint(
+    this: ShapeElementModel,
+    x: number,
+    y: number,
+    options: PointTestOptions
+  ) {
+    const point: IVec = [x, y];
+    const points = getPointsFromBoundWithRotation(this, triangle.points);
+
+    let hit = pointOnPolygonStoke(
+      point,
+      points,
+      (options?.hitThreshold ?? 1) / (options?.zoom ?? 1)
+    );
+
+    if (!hit) {
+      if (!options.ignoreTransparent || this.filled) {
+        hit = pointInPolygon([x, y], points);
+      } else {
+        // If shape is not filled or transparent
+        const text = this.text;
+        if (!text || !text.length) {
+          // Check the center area of the shape
+          const centralBounds = getCenterAreaBounds(
+            this,
+            DEFAULT_CENTRAL_AREA_RATIO
+          );
+          const centralPoints = getPointsFromBoundWithRotation(
+            centralBounds,
+            triangle.points
+          );
+          hit = pointInPolygon([x, y], centralPoints);
+        } else if (this.textBound) {
+          hit = pointInPolygon(
+            point,
+            getPointsFromBoundWithRotation(
+              this,
+              () => Bound.from(this.textBound!).points
+            )
+          );
+        }
+      }
+    }
+
+    return hit;
+  },
+  containsBound(bounds: Bound, element: ShapeElementModel): boolean {
+    const points = getPointsFromBoundWithRotation(element, triangle.points);
+    return points.some(point => bounds.containsPoint(point));
+  },
+
+  getNearestPoint(point: IVec, element: ShapeElementModel) {
+    const points = getPointsFromBoundWithRotation(element, triangle.points);
+    return polygonNearestPoint(points, point);
+  },
+
+  getLineIntersections(start: IVec, end: IVec, element: ShapeElementModel) {
+    const points = getPointsFromBoundWithRotation(element, triangle.points);
+    return linePolygonIntersects(start, end, points);
+  },
+
+  getRelativePointLocation(position: IVec, element: ShapeElementModel) {
+    const bound = Bound.deserialize(element.xywh);
+    const point = bound.getRelativePoint(position);
+    let points = triangle.points(bound);
+    points.push(point);
+
+    points = rotatePoints(points, bound.center, element.rotate);
+    const rotatePoint = points.pop() as IVec;
+    const tangent = polygonGetPointTangent(points, rotatePoint);
+    return new PointLocation(rotatePoint, tangent);
+  },
+};

blocksuite/affine/model/src/elements/shape/index.ts

@@ -0,0 +1,2 @@
+export * from './api/index.js';
+export * from './shape.js';

blocksuite/affine/model/src/elements/shape/shape.ts

@@ -0,0 +1,277 @@
+import type {
+  BaseElementProps,
+  PointTestOptions,
+} from '@blocksuite/block-std/gfx';
+import {
+  field,
+  GfxLocalElementModel,
+  GfxPrimitiveElementModel,
+  local,
+  prop,
+} from '@blocksuite/block-std/gfx';
+import type {
+  Bound,
+  IBound,
+  IVec,
+  PointLocation,
+  SerializedXYWH,
+} from '@blocksuite/global/utils';
+import { DocCollection, type Y } from '@blocksuite/store';
+
+import {
+  type Color,
+  DEFAULT_ROUGHNESS,
+  FontFamily,
+  FontStyle,
+  FontWeight,
+  LineColor,
+  ShapeFillColor,
+  ShapeStyle,
+  ShapeTextFontSize,
+  ShapeType,
+  StrokeStyle,
+  TextAlign,
+  TextResizing,
+  type TextStyleProps,
+  TextVerticalAlign,
+} from '../../consts/index.js';
+import { shapeMethods } from './api/index.js';
+
+export type ShapeProps = BaseElementProps & {
+  shapeType: ShapeType;
+  radius: number;
+  filled: boolean;
+  fillColor: Color;
+  strokeWidth: number;
+  strokeColor: Color;
+  strokeStyle: StrokeStyle;
+  shapeStyle: ShapeStyle;
+  // https://github.com/rough-stuff/rough/wiki#roughness
+  roughness?: number;
+
+  text?: Y.Text;
+  textHorizontalAlign?: TextAlign;
+  textVerticalAlign?: TextVerticalAlign;
+  textResizing?: TextResizing;
+  maxWidth?: false | number;
+} & Partial<TextStyleProps>;
+
+export const SHAPE_TEXT_PADDING = 20;
+export const SHAPE_TEXT_VERTICAL_PADDING = 10;
+
+export class ShapeElementModel extends GfxPrimitiveElementModel<ShapeProps> {
+  /**
+   * The bound of the text content.
+   */
+  textBound: IBound | null = null;
+
+  get type() {
+    return 'shape';
+  }
+
+  static override propsToY(props: ShapeProps) {
+    if (props.text && !(props.text instanceof DocCollection.Y.Text)) {
+      props.text = new DocCollection.Y.Text(props.text);
+    }
+
+    return props;
+  }
+
+  override containsBound(bounds: Bound) {
+    return shapeMethods[this.shapeType].containsBound(bounds, this);
+  }
+
+  override getLineIntersections(start: IVec, end: IVec) {
+    return shapeMethods[this.shapeType].getLineIntersections(start, end, this);
+  }
+
+  override getNearestPoint(point: IVec): IVec {
+    return shapeMethods[this.shapeType].getNearestPoint(point, this) as IVec;
+  }
+
+  override getRelativePointLocation(point: IVec): PointLocation {
+    return shapeMethods[this.shapeType].getRelativePointLocation(point, this);
+  }
+
+  override includesPoint(x: number, y: number, options: PointTestOptions) {
+    return shapeMethods[this.shapeType].includesPoint.call(this, x, y, {
+      ...options,
+      ignoreTransparent: options.ignoreTransparent ?? true,
+    });
+  }
+
+  @field('#000000' as Color)
+  accessor color!: Color;
+
+  @field()
+  accessor fillColor: Color = ShapeFillColor.Yellow;
+
+  @field()
+  accessor filled: boolean = false;
+
+  @field(FontFamily.Inter as string)
+  accessor fontFamily!: string;
+
+  @field(ShapeTextFontSize.MEDIUM)
+  accessor fontSize!: number;
+
+  @field(FontStyle.Normal as FontStyle)
+  accessor fontStyle!: FontStyle;
+
+  @field(FontWeight.Regular as FontWeight)
+  accessor fontWeight!: FontWeight;
+
+  @field(false as false | number)
+  accessor maxWidth: false | number = false;
+
+  @field([SHAPE_TEXT_VERTICAL_PADDING, SHAPE_TEXT_PADDING])
+  accessor padding: [number, number] = [
+    SHAPE_TEXT_VERTICAL_PADDING,
+    SHAPE_TEXT_PADDING,
+  ];
+
+  @field()
+  accessor radius: number = 0;
+
+  @field(0)
+  accessor rotate: number = 0;
+
+  @field(DEFAULT_ROUGHNESS)
+  accessor roughness: number = DEFAULT_ROUGHNESS;
+
+  @field()
+  accessor shadow: {
+    /**
+     * @deprecated Since the shadow blur will reduce the performance of canvas rendering,
+     * we already disable the shadow blur rendering by default, so set this field will not take effect.
+     * You can enable it by setting the flag `enable_shape_shadow_blur` in the awareness store.
+     * https://web.dev/articles/canvas-performance#avoid_shadowblur
+     */
+    blur: number;
+    offsetX: number;
+    offsetY: number;
+    color: string;
+  } | null = null;
+
+  @field()
+  accessor shapeStyle: ShapeStyle = ShapeStyle.General;
+
+  @field()
+  accessor shapeType: ShapeType = ShapeType.Rect;
+
+  @field()
+  accessor strokeColor: Color = LineColor.Yellow;
+
+  @field()
+  accessor strokeStyle: StrokeStyle = StrokeStyle.Solid;
+
+  @field()
+  accessor strokeWidth: number = 4;
+
+  @field()
+  accessor text: Y.Text | undefined = undefined;
+
+  @field(TextAlign.Center as TextAlign)
+  accessor textAlign!: TextAlign;
+
+  @local()
+  accessor textDisplay: boolean = true;
+
+  @field(TextAlign.Center as TextAlign)
+  accessor textHorizontalAlign!: TextAlign;
+
+  @field(TextResizing.AUTO_HEIGHT as TextResizing)
+  accessor textResizing: TextResizing = TextResizing.AUTO_HEIGHT;
+
+  @field(TextVerticalAlign.Center as TextVerticalAlign)
+  accessor textVerticalAlign!: TextVerticalAlign;
+
+  @field()
+  accessor xywh: SerializedXYWH = '[0,0,100,100]';
+}
+
+export class LocalShapeElementModel extends GfxLocalElementModel {
+  roughness: number = DEFAULT_ROUGHNESS;
+
+  textBound: Bound | null = null;
+
+  textDisplay: boolean = true;
+
+  get type() {
+    return 'shape';
+  }
+
+  @prop()
+  accessor color: Color = '#000000';
+
+  @prop()
+  accessor fillColor: Color = ShapeFillColor.Yellow;
+
+  @prop()
+  accessor filled: boolean = false;
+
+  @prop()
+  accessor fontFamily: string = FontFamily.Inter;
+
+  @prop()
+  accessor fontSize: number = 16;
+
+  @prop()
+  accessor fontStyle: FontStyle = FontStyle.Normal;
+
+  @prop()
+  accessor fontWeight: FontWeight = FontWeight.Regular;
+
+  @prop()
+  accessor padding: [number, number] = [
+    SHAPE_TEXT_VERTICAL_PADDING,
+    SHAPE_TEXT_PADDING,
+  ];
+
+  @prop()
+  accessor radius: number = 0;
+
+  @prop()
+  accessor shadow: {
+    blur: number;
+    offsetX: number;
+    offsetY: number;
+    color: string;
+  } | null = null;
+
+  @prop()
+  accessor shapeStyle: ShapeStyle = ShapeStyle.General;
+
+  @prop()
+  accessor shapeType: ShapeType = ShapeType.Rect;
+
+  @prop()
+  accessor strokeColor: Color = LineColor.Yellow;
+
+  @prop()
+  accessor strokeStyle: StrokeStyle = StrokeStyle.Solid;
+
+  @prop()
+  accessor strokeWidth: number = 4;
+
+  @prop()
+  accessor text: string = '';
+
+  @prop()
+  accessor textAlign: TextAlign = TextAlign.Center;
+
+  @prop()
+  accessor textVerticalAlign: TextVerticalAlign = TextVerticalAlign.Center;
+}
+
+declare global {
+  namespace BlockSuite {
+    interface SurfaceElementModelMap {
+      shape: ShapeElementModel;
+    }
+
+    interface EdgelessTextModelMap {
+      shape: ShapeElementModel;
+    }
+  }
+}

blocksuite/affine/model/src/elements/text/index.ts

@@ -0,0 +1 @@
+export * from './text.js';

blocksuite/affine/model/src/elements/text/text.ts

@@ -0,0 +1,104 @@
+import type { BaseElementProps } from '@blocksuite/block-std/gfx';
+import { field, GfxPrimitiveElementModel } from '@blocksuite/block-std/gfx';
+import type { IVec, SerializedXYWH } from '@blocksuite/global/utils';
+import {
+  Bound,
+  getPointsFromBoundWithRotation,
+  linePolygonIntersects,
+  pointInPolygon,
+  polygonNearestPoint,
+} from '@blocksuite/global/utils';
+import { DocCollection, type Y } from '@blocksuite/store';
+
+import {
+  type Color,
+  FontFamily,
+  FontStyle,
+  FontWeight,
+  TextAlign,
+  type TextStyleProps,
+} from '../../consts/index.js';
+
+export type TextElementProps = BaseElementProps & {
+  text: Y.Text;
+  hasMaxWidth?: boolean;
+} & Omit<TextStyleProps, 'fontWeight' | 'fontStyle'> &
+  Partial<Pick<TextStyleProps, 'fontWeight' | 'fontStyle'>>;
+
+export class TextElementModel extends GfxPrimitiveElementModel<TextElementProps> {
+  get type() {
+    return 'text';
+  }
+
+  static override propsToY(props: Record<string, unknown>) {
+    if (props.text && !(props.text instanceof DocCollection.Y.Text)) {
+      props.text = new DocCollection.Y.Text(props.text as string);
+    }
+
+    return props;
+  }
+
+  override containsBound(bounds: Bound): boolean {
+    const points = getPointsFromBoundWithRotation(this);
+    return points.some(point => bounds.containsPoint(point));
+  }
+
+  override getLineIntersections(start: IVec, end: IVec) {
+    const points = getPointsFromBoundWithRotation(this);
+    return linePolygonIntersects(start, end, points);
+  }
+
+  override getNearestPoint(point: IVec): IVec {
+    return polygonNearestPoint(
+      Bound.deserialize(this.xywh).points,
+      point
+    ) as IVec;
+  }
+
+  override includesPoint(x: number, y: number): boolean {
+    const points = getPointsFromBoundWithRotation(this);
+    return pointInPolygon([x, y], points);
+  }
+
+  @field()
+  accessor color: Color = '#000000';
+
+  @field()
+  accessor fontFamily: FontFamily = FontFamily.Inter;
+
+  @field()
+  accessor fontSize: number = 16;
+
+  @field(FontStyle.Normal as FontStyle)
+  accessor fontStyle: FontStyle = FontStyle.Normal;
+
+  @field(FontWeight.Regular as FontWeight)
+  accessor fontWeight: FontWeight = FontWeight.Regular;
+
+  @field(false)
+  accessor hasMaxWidth: boolean = false;
+
+  @field(0)
+  accessor rotate: number = 0;
+
+  @field()
+  accessor text: Y.Text = new DocCollection.Y.Text();
+
+  @field()
+  accessor textAlign: TextAlign = TextAlign.Center;
+
+  @field()
+  accessor xywh: SerializedXYWH = '[0,0,16,16]';
+}
+
+declare global {
+  namespace BlockSuite {
+    interface SurfaceElementModelMap {
+      text: TextElementModel;
+    }
+
+    interface EdgelessTextModelMap {
+      text: TextElementModel;
+    }
+  }
+}

blocksuite/affine/model/src/index.ts

@@ -0,0 +1,4 @@
+export * from './blocks/index.js';
+export * from './consts/index.js';
+export * from './elements/index.js';
+export * from './utils/index.js';

blocksuite/affine/model/src/utils/enum.ts

@@ -0,0 +1,11 @@
+export function createEnumMap<T extends Record<string, string | number>>(
+  EnumObject: T
+) {
+  return Object.entries(EnumObject).reduce(
+    (acc, [key, value]) => {
+      acc[value as T[keyof T]] = key as keyof T;
+      return acc;
+    },
+    {} as Record<T[keyof T], keyof T>
+  );
+}

blocksuite/affine/model/src/utils/global.ts

@@ -0,0 +1,49 @@
+import type {
+  GfxBlockElementModel,
+  GfxGroupLikeElementModel,
+  GfxLocalElementModel,
+  GfxModel,
+  GfxPrimitiveElementModel,
+} from '@blocksuite/block-std/gfx';
+
+declare global {
+  namespace BlockSuite {
+    interface EdgelessBlockModelMap {}
+    type EdgelessBlockModelKeyType = keyof EdgelessBlockModelMap;
+    type EdgelessBlockModelType =
+      | EdgelessBlockModelMap[EdgelessBlockModelKeyType]
+      | GfxBlockElementModel;
+
+    type EdgelessModel = GfxModel;
+
+    interface EdgelessTextModelMap {}
+    type EdgelessTextModelKeyType = keyof EdgelessTextModelMap;
+    type EdgelessTextModelType = EdgelessTextModelMap[EdgelessTextModelKeyType];
+
+    interface SurfaceElementModelMap {}
+    type SurfaceElementModelKeys = keyof SurfaceElementModelMap;
+    type SurfaceElementModel =
+      | SurfaceElementModelMap[SurfaceElementModelKeys]
+      | GfxPrimitiveElementModel;
+
+    interface SurfaceGroupLikeModelMap {}
+    type SurfaceGroupLikeModelKeys = keyof SurfaceGroupLikeModelMap;
+    type SurfaceGroupLikeModel =
+      | SurfaceGroupLikeModelMap[SurfaceGroupLikeModelKeys]
+      | GfxGroupLikeElementModel;
+
+    interface SurfaceLocalModelMap {}
+    type SurfaceLocalModelKeys = keyof SurfaceLocalModelMap;
+    type SurfaceLocalModel =
+      | SurfaceLocalModelMap[SurfaceLocalModelKeys]
+      | GfxLocalElementModel;
+
+    // not include local model
+    type SurfaceModel = SurfaceElementModel | SurfaceGroupLikeModel;
+    type SurfaceModelKeyType =
+      | SurfaceElementModelKeys
+      | SurfaceGroupLikeModelKeys;
+
+    type EdgelessModelKeys = EdgelessBlockModelKeyType | SurfaceModelKeyType;
+  }
+}

blocksuite/affine/model/src/utils/helper.ts

@@ -0,0 +1,63 @@
+import type { GfxCompatibleProps } from '@blocksuite/block-std/gfx';
+import { GfxCompatible } from '@blocksuite/block-std/gfx';
+import type { Constructor } from '@blocksuite/global/utils';
+import {
+  type BaseBlockTransformer,
+  type BlockModel,
+  defineBlockSchema,
+  type InternalPrimitives,
+} from '@blocksuite/store';
+
+export function defineEmbedModel<
+  Props extends object,
+  T extends Constructor<BlockModel<Props>> = Constructor<BlockModel<Props>>,
+>(BlockModelSuperClass: T) {
+  return GfxCompatible<Props & GfxCompatibleProps>(
+    BlockModelSuperClass as Constructor<BlockModel<Props & GfxCompatibleProps>>
+  );
+}
+
+export type EmbedProps<Props = object> = Props & GfxCompatibleProps;
+
+export type EmbedBlockModel<Props = object> = BlockModel<EmbedProps<Props>>;
+
+export function createEmbedBlockSchema<
+  Props extends object,
+  Model extends EmbedBlockModel<Props>,
+  Transformer extends BaseBlockTransformer<
+    EmbedProps<Props>
+  > = BaseBlockTransformer<EmbedProps<Props>>,
+>({
+  name,
+  version,
+  toModel,
+  props,
+  transformer,
+}: {
+  name: string;
+  version: number;
+  toModel: () => Model;
+  props?: (internalPrimitives: InternalPrimitives) => Props;
+  transformer?: () => Transformer;
+}) {
+  return defineBlockSchema({
+    flavour: `affine:embed-${name}`,
+    props: internalPrimitives => {
+      const userProps = props?.(internalPrimitives);
+
+      return {
+        index: 'a0',
+        xywh: '[0,0,0,0]',
+        lockedBySelf: false,
+        rotate: 0,
+        ...userProps,
+      } as unknown as EmbedProps<Props>;
+    },
+    metadata: {
+      version,
+      role: 'content',
+    },
+    toModel,
+    transformer,
+  });
+}

blocksuite/affine/model/src/utils/index.ts

@@ -0,0 +1,4 @@
+export * from './enum.js';
+export * from './global.js';
+export * from './helper.js';
+export * from './types.js';

blocksuite/affine/model/src/utils/types.ts

@@ -0,0 +1,19 @@
+export type EmbedCardStyle =
+  | 'horizontal'
+  | 'horizontalThin'
+  | 'list'
+  | 'vertical'
+  | 'cube'
+  | 'cubeThick'
+  | 'video'
+  | 'figma'
+  | 'html'
+  | 'syncedDoc'
+  | 'pdf';
+
+export type LinkPreviewData = {
+  description: string | null;
+  icon: string | null;
+  image: string | null;
+  title: string | null;
+};