Add block editing

src/components/LexicalContent/RichTextNodeFormat.ts

@@ -0,0 +1,51 @@
+//This copy-and-pasted from somewhere in lexical here: https://github.com/facebook/lexical/blob/c2ceee223f46543d12c574e62155e619f9a18a5d/packages/lexical/src/LexicalConstants.ts
+
+// DOM
+export const DOM_ELEMENT_TYPE = 1
+export const DOM_TEXT_TYPE = 3
+
+// Reconciling
+export const NO_DIRTY_NODES = 0
+export const HAS_DIRTY_NODES = 1
+export const FULL_RECONCILE = 2
+
+// Text node modes
+export const IS_NORMAL = 0
+export const IS_TOKEN = 1
+export const IS_SEGMENTED = 2
+// IS_INERT = 3
+
+// Text node formatting
+export const IS_BOLD = 1
+export const IS_ITALIC = 1 << 1
+export const IS_STRIKETHROUGH = 1 << 2
+export const IS_UNDERLINE = 1 << 3
+export const IS_CODE = 1 << 4
+export const IS_SUBSCRIPT = 1 << 5
+export const IS_SUPERSCRIPT = 1 << 6
+export const IS_HIGHLIGHT = 1 << 7
+
+export const IS_ALL_FORMATTING = IS_BOLD | IS_ITALIC | IS_STRIKETHROUGH | IS_UNDERLINE | IS_CODE | IS_SUBSCRIPT | IS_SUPERSCRIPT | IS_HIGHLIGHT
+
+export const IS_DIRECTIONLESS = 1
+export const IS_UNMERGEABLE = 1 << 1
+
+// Element node formatting
+export const IS_ALIGN_LEFT = 1
+export const IS_ALIGN_CENTER = 2
+export const IS_ALIGN_RIGHT = 3
+export const IS_ALIGN_JUSTIFY = 4
+export const IS_ALIGN_START = 5
+export const IS_ALIGN_END = 6
+
+export const TEXT_TYPE_TO_FORMAT: Record<TextFormatType | string, number> = {
+  bold: IS_BOLD,
+  code: IS_CODE,
+  italic: IS_ITALIC,
+  strikethrough: IS_STRIKETHROUGH,
+  subscript: IS_SUBSCRIPT,
+  superscript: IS_SUPERSCRIPT,
+  underline: IS_UNDERLINE
+}
+
+export type TextFormatType = 'bold' | 'underline' | 'strikethrough' | 'italic' | 'code' | 'subscript' | 'superscript'