feat: Initial clean release of CHM

packages/editor/ProseMirror/vendor/changedDescendants.ts

@@ -0,0 +1,59 @@
+// From the prosemirror-tables package:
+// https://github.com/ProseMirror/prosemirror-tables/blob/a99f70855f2b3e2433bc77451fedd884305fda5b/src/fixtables.ts#L17C1-L47C2
+//! Copyright (C) 2015-2016 by Marijn Haverbeke <marijnh@gmail.com> and others
+//! 
+//! Permission is hereby granted, free of charge, to any person obtaining a copy
+//! of this software and associated documentation files (the "Software"), to deal
+//! in the Software without restriction, including without limitation the rights
+//! to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//! copies of the Software, and to permit persons to whom the Software is
+//! furnished to do so, subject to the following conditions:
+//! 
+//! The above copyright notice and this permission notice shall be included in
+//! all copies or substantial portions of the Software.
+//! 
+//! THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//! IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//! FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//! AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//! LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//! OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//! THE SOFTWARE.
+
+import { Node } from 'prosemirror-model';
+
+// eslint-disable -- A mirror of code from an external source
+
+/**
+ * Helper for iterating through the nodes in a document that changed
+ * compared to the given previous document. Useful for avoiding
+ * duplicate work on each transaction.
+ *
+ * @public
+ */
+function changedDescendants(
+  old: Node,
+  cur: Node,
+  offset: number,
+  f: (node: Node, pos: number) => void,
+): void {
+  const oldSize = old.childCount,
+    curSize = cur.childCount;
+  outer: for (let i = 0, j = 0; i < curSize; i++) {
+    const child = cur.child(i);
+    for (let scan = j, e = Math.min(oldSize, i + 3); scan < e; scan++) {
+      if (old.child(scan) == child) {
+        j = scan + 1;
+        offset += child.nodeSize;
+        continue outer;
+      }
+    }
+    f(child, offset);
+    if (j < oldSize && old.child(j).sameMarkup(child))
+      changedDescendants(old.child(j), child, offset + 1, f);
+    else child.nodesBetween(0, child.content.size, f, offset + 1);
+    offset += child.nodeSize;
+  }
+}
+
+export default changedDescendants;

packages/editor/ProseMirror/vendor/icons/LICENSE

@@ -0,0 +1,208 @@
+The icons included in this folder are vendored from https://fonts.google.com/icons.
+Changes made:
+- File names have been changed.
+
+
+License:
+
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packages/editor/ProseMirror/vendor/icons/addColumnRight.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="24px" viewBox="0 -960 960 960" width="24px" fill="#1f1f1f"><path d="M160-760v560h240v-560H160ZM80-120v-720h720v160h-80v-80H480v560h240v-80h80v160H80Zm400-360Zm-80 0h80-80Zm0 0Zm320 120v-80h-80v-80h80v-80h80v80h80v80h-80v80h-80Z"/></svg>

packages/editor/ProseMirror/vendor/icons/addColumnRight.ts

@@ -0,0 +1,3 @@
+import icon from "./icon";
+
+export default icon(require('./addColumnRight.svg'));

packages/editor/ProseMirror/vendor/icons/addRowBelow.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="24px" viewBox="0 -960 960 960" width="24px" fill="#1f1f1f"><path d="M200-560h560v-240H200v240Zm-80 400v-720h720v720H680v-80h80v-240H200v240h80v80H120Zm360-320Zm0-80v80-80Zm0 0ZM440-80v-80h-80v-80h80v-80h80v80h80v80h-80v80h-80Z"/></svg>

packages/editor/ProseMirror/vendor/icons/addRowBelow.ts

@@ -0,0 +1,3 @@
+import icon from "./icon";
+
+export default icon(require('./addRowBelow.svg'));

packages/editor/ProseMirror/vendor/icons/icon.ts

@@ -0,0 +1,15 @@
+import { Icon } from "./types";
+
+type ImportedIcon = { default: Icon };
+
+const icon = (importedIcon: ImportedIcon): Icon => {
+	return () => {
+		const icon = importedIcon.default();
+		icon.removeAttribute('fill');
+		icon.style.fill = 'currentColor';
+		icon.classList.add('icon');
+		return icon;
+	};
+};
+
+export default icon;

packages/editor/ProseMirror/vendor/icons/removeColumn.ts

@@ -0,0 +1,7 @@
+import icon from "./icon";
+
+export default () => {
+	const element = icon(require('./variableRemove.svg'))();
+	element.style.transform = 'rotate(90deg)';
+	return element;
+};

packages/editor/ProseMirror/vendor/icons/removeRow.ts

@@ -0,0 +1,5 @@
+import icon from "./icon";
+
+// As of October 2025, Material Symbols seems to lack a "remove row".
+// However, the "variable remove" icon has a similar appearance.
+export default icon(require('./variableRemove.svg'));

packages/editor/ProseMirror/vendor/icons/types.ts

@@ -0,0 +1,2 @@
+
+export type Icon = ()=>SVGSVGElement;

packages/editor/ProseMirror/vendor/icons/variableRemove.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="24px" viewBox="0 -960 960 960" width="24px" fill="#1f1f1f"><path d="M560-280H120v-400h720v120h-80v-40H200v240h360v80Zm-360-80v-240 240Zm440 104 84-84-84-84 56-56 84 84 84-84 56 56-83 84 83 84-56 56-84-83-84 83-56-56Z"/></svg>

packages/editor/ProseMirror/vendor/splitBlockAs.ts

@@ -0,0 +1,89 @@
+import { Attrs, ContentMatch, NodeType, ResolvedPos, Node } from "prosemirror-model"
+import { canSplit } from "prosemirror-transform"
+import { Selection, TextSelection, AllSelection, Transaction, NodeSelection } from "prosemirror-state"
+
+// Slightly modified from the prosemirror-commands package:
+// https://github.com/ProseMirror/prosemirror-tables/blob/a99f70855f2b3e2433bc77451fedd884305fda5b/src/fixtables.ts#L17C1-L47C2
+// Modified to adjust the API of the splitBlockAs command to allow using it
+// within another command, as per https://discuss.prosemirror.net/t/refactor-commands-into-transform-helpers/479.
+//
+//! Copyright (C) 2015-2017 by Marijn Haverbeke <marijnh@gmail.com> and others
+//! 
+//! Permission is hereby granted, free of charge, to any person obtaining a copy
+//! of this software and associated documentation files (the "Software"), to deal
+//! in the Software without restriction, including without limitation the rights
+//! to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//! copies of the Software, and to permit persons to whom the Software is
+//! furnished to do so, subject to the following conditions:
+//! 
+//! The above copyright notice and this permission notice shall be included in
+//! all copies or substantial portions of the Software.
+//! 
+//! THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//! IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//! FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//! AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//! LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//! OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//! THE SOFTWARE.
+
+function defaultBlockAt(match: ContentMatch) {
+  for (let i = 0; i < match.edgeCount; i++) {
+    let {type} = match.edge(i)
+    if (type.isTextblock && !type.hasRequiredAttrs()) return type
+  }
+  return null
+}
+
+
+/// Create a variant of [`splitBlock`](#commands.splitBlock) that uses
+/// a custom function to determine the type of the newly split off block.
+function splitBlockAs(
+  splitNode?: (node: Node, atEnd: boolean, $from: ResolvedPos) => {type: NodeType, attrs?: Attrs} | null
+) {
+  // Update: Accept a selection and a transaction rather than a state and dispatch function.
+  return (selection: Selection, tr: Transaction) => {
+    let {$from, $to} = selection
+    if (selection instanceof NodeSelection && selection.node.isBlock) {
+      if (!$from.parentOffset || !canSplit(tr.doc, $from.pos)) return false
+      return tr.split($from.pos).scrollIntoView()
+    }
+
+    if (!$from.depth) return false
+    let types: (null | {type: NodeType, attrs?: Attrs | null})[] = []
+    let splitDepth, deflt, atEnd = false, atStart = false
+    for (let d = $from.depth;; d--) {
+      let node = $from.node(d)
+      if (node.isBlock) {
+        atEnd = $from.end(d) == $from.pos + ($from.depth - d)
+        atStart = $from.start(d) == $from.pos - ($from.depth - d)
+        deflt = defaultBlockAt($from.node(d - 1).contentMatchAt($from.indexAfter(d - 1)))
+        let splitType = splitNode && splitNode($to.parent, atEnd, $from)
+        types.unshift(splitType || (atEnd && deflt ? {type: deflt} : null))
+        splitDepth = d
+        break
+      } else {
+        if (d == 1) return false
+        types.unshift(null)
+      }
+    }
+
+    if (selection instanceof TextSelection || selection instanceof AllSelection) tr.deleteSelection()
+    let splitPos = tr.mapping.map($from.pos)
+    let can = canSplit(tr.doc, splitPos, types.length, types)
+    if (!can) {
+      types[0] = deflt ? {type: deflt} : null
+      can = canSplit(tr.doc, splitPos, types.length, types)
+    }
+    if (!can) return false
+    tr.split(splitPos, types.length, types)
+    if (!atEnd && atStart && $from.node(splitDepth).type != deflt) {
+      let first = tr.mapping.map($from.before(splitDepth)), $first = tr.doc.resolve(first)
+      if (deflt && $from.node(splitDepth - 1).canReplaceWith($first.index(), $first.index() + 1, deflt))
+        tr.setNodeMarkup(tr.mapping.map($from.before(splitDepth)), deflt)
+    }
+    return tr.scrollIntoView()
+  }
+}
+
+export default splitBlockAs;