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Switch back to beforeinput listener from dom observer
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| export type DOMNode = InstanceType<typeof window.Node>; | ||
| export type DOMSelection = InstanceType<typeof window.Selection>; | ||
| export type DOMSelectionRange = { | ||
| focusNode: DOMNode | null; | ||
| focusOffset: number; | ||
| anchorNode: DOMNode | null; | ||
| anchorOffset: number; | ||
| }; | ||
|
|
||
| export const domIndex = function (node: Node) { | ||
| for (let index = 0; ; index++) { | ||
| node = node.previousSibling!; | ||
| if (!node) return index; | ||
| } | ||
| }; | ||
|
|
||
| export const parentNode = function (node: Node): Node | null { | ||
| const parent = (node as HTMLSlotElement).assignedSlot || node.parentNode; | ||
| return parent && parent.nodeType == 11 ? (parent as ShadowRoot).host : parent; | ||
| }; | ||
|
|
||
| let reusedRange: Range | null = null; | ||
|
|
||
| // Note that this will always return the same range, because DOM range | ||
| // objects are every expensive, and keep slowing down subsequent DOM | ||
| // updates, for some reason. | ||
| export const textRange = function (node: Text, from?: number, to?: number) { | ||
| const range = reusedRange || (reusedRange = document.createRange()); | ||
| range.setEnd(node, to == null ? node.nodeValue!.length : to); | ||
| range.setStart(node, from || 0); | ||
| return range; | ||
| }; | ||
|
|
||
| // Scans forward and backward through DOM positions equivalent to the | ||
| // given one to see if the two are in the same place (i.e. after a | ||
| // text node vs at the end of that text node) | ||
| export const isEquivalentPosition = function ( | ||
| node: Node, | ||
| off: number, | ||
| targetNode: Node, | ||
| targetOff: number | ||
| ) { | ||
| return ( | ||
| targetNode && | ||
| (scanFor(node, off, targetNode, targetOff, -1) || | ||
| scanFor(node, off, targetNode, targetOff, 1)) | ||
| ); | ||
| }; | ||
|
|
||
| const atomElements = /^(img|br|input|textarea|hr)$/i; | ||
|
|
||
| function scanFor( | ||
| node: Node, | ||
| off: number, | ||
| targetNode: Node, | ||
| targetOff: number, | ||
| dir: number | ||
| ) { | ||
| for (;;) { | ||
| if (node == targetNode && off == targetOff) return true; | ||
| if (off == (dir < 0 ? 0 : nodeSize(node))) { | ||
| const parent = node.parentNode; | ||
| if ( | ||
| !parent || | ||
| parent.nodeType != 1 || | ||
| hasBlockDesc(node) || | ||
| atomElements.test(node.nodeName) || | ||
| (node as HTMLElement).contentEditable == "false" | ||
| ) | ||
| return false; | ||
| off = domIndex(node) + (dir < 0 ? 0 : 1); | ||
| node = parent; | ||
| } else if (node.nodeType == 1) { | ||
| node = node.childNodes[off + (dir < 0 ? -1 : 0)]!; | ||
| if ((node as HTMLElement).contentEditable == "false") return false; | ||
| off = dir < 0 ? nodeSize(node) : 0; | ||
| } else { | ||
| return false; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| export function nodeSize(node: Node) { | ||
| return node.nodeType == 3 ? node.nodeValue!.length : node.childNodes.length; | ||
| } | ||
|
|
||
| export function isOnEdge(node: Node, offset: number, parent: Node) { | ||
| for ( | ||
| let atStart = offset == 0, atEnd = offset == nodeSize(node); | ||
| atStart || atEnd; | ||
|
|
||
| ) { | ||
| if (node == parent) return true; | ||
| const index = domIndex(node); | ||
| node = node.parentNode!; | ||
| if (!node) return false; | ||
| atStart = atStart && index == 0; | ||
| atEnd = atEnd && index == nodeSize(node); | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| export function hasBlockDesc(dom: Node) { | ||
| let desc; | ||
| for (let cur: Node | null = dom; cur; cur = cur.parentNode) | ||
| if ((desc = cur.pmViewDesc)) break; | ||
| return ( | ||
| desc && | ||
| desc.node && | ||
| desc.node.isBlock && | ||
| (desc.dom == dom || desc.contentDOM == dom) | ||
| ); | ||
| } | ||
|
|
||
| // Work around Chrome issue https://bugs.chromium.org/p/chromium/issues/detail?id=447523 | ||
| // (isCollapsed inappropriately returns true in shadow dom) | ||
| export const selectionCollapsed = function (domSel: DOMSelectionRange) { | ||
| return ( | ||
| domSel.focusNode && | ||
| isEquivalentPosition( | ||
| domSel.focusNode, | ||
| domSel.focusOffset, | ||
| domSel.anchorNode!, | ||
| domSel.anchorOffset | ||
| ) | ||
| ); | ||
| }; | ||
|
|
||
| export function keyEvent(keyCode: number, key: string) { | ||
| const event = document.createEvent("Event") as KeyboardEvent; | ||
| event.initEvent("keydown", true, true); | ||
| (event as any).keyCode = keyCode; | ||
| (event as any).key = (event as any).code = key; | ||
| return event; | ||
| } | ||
|
|
||
| export function deepActiveElement(doc: Document) { | ||
| let elt = doc.activeElement; | ||
| while (elt && elt.shadowRoot) elt = elt.shadowRoot.activeElement; | ||
| return elt; | ||
| } | ||
|
|
||
| export function caretFromPoint( | ||
| doc: Document, | ||
| x: number, | ||
| y: number | ||
| ): { node: Node; offset: number } | undefined { | ||
| if ((doc as any).caretPositionFromPoint) { | ||
| try { | ||
| // Firefox throws for this call in hard-to-predict circumstances (#994) | ||
| const pos = (doc as any).caretPositionFromPoint(x, y); | ||
| if (pos) return { node: pos.offsetNode, offset: pos.offset }; | ||
| } catch (_) { | ||
| // pass | ||
| } | ||
| } | ||
| if (doc.caretRangeFromPoint) { | ||
| const range = doc.caretRangeFromPoint(x, y); | ||
| if (range) return { node: range.startContainer, offset: range.startOffset }; | ||
| } | ||
| return; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| import { EditorView } from "prosemirror-view"; | ||
| import { useEffect } from "react"; | ||
|
|
||
| export function useBeforeInput(view: EditorView | null) { | ||
| useEffect(() => { | ||
| if (!view) return; | ||
|
|
||
| function onBeforeInput(event: InputEvent) { | ||
| if (!view) return; | ||
|
|
||
| switch (event.inputType) { | ||
| case "insertText": { | ||
| if (event.data === null) return; | ||
|
|
||
| if ( | ||
| view.someProp("handleTextInput")?.( | ||
| view, | ||
| view.state.selection.from, | ||
| view.state.selection.to, | ||
| event.data | ||
| ) | ||
| ) { | ||
| event.preventDefault(); | ||
| break; | ||
| } | ||
|
|
||
| const { tr } = view.state; | ||
| tr.insertText(event.data); | ||
| view.dispatch(tr); | ||
| event.preventDefault(); | ||
| break; | ||
| } | ||
| case "deleteContentBackward": { | ||
| const { tr, doc, selection } = view.state; | ||
| const from = selection.empty ? selection.from - 1 : selection.from; | ||
| const to = selection.to; | ||
| const storedMarks = doc.resolve(from).marksAcross(doc.resolve(to)); | ||
|
|
||
| tr.delete(from, to).setStoredMarks(storedMarks); | ||
|
|
||
| view.dispatch(tr); | ||
| event.preventDefault(); | ||
| break; | ||
| } | ||
| case "deleteContentForward": { | ||
| const { tr, doc, selection } = view.state; | ||
| const from = selection.from; | ||
| const to = selection.empty ? selection.to + 1 : selection.to; | ||
| const storedMarks = doc.resolve(from).marksAcross(doc.resolve(to)); | ||
|
|
||
| tr.delete(from, to).setStoredMarks(storedMarks); | ||
| event.preventDefault(); | ||
| break; | ||
| } | ||
| case "deleteContent": { | ||
| const { tr, doc, selection } = view.state; | ||
| const storedMarks = doc | ||
| .resolve(selection.from) | ||
| .marksAcross(doc.resolve(selection.to)); | ||
|
|
||
| tr.delete(selection.from, selection.to).setStoredMarks(storedMarks); | ||
| view.dispatch(tr); | ||
| event.preventDefault(); | ||
| break; | ||
| } | ||
| default: { | ||
| event.preventDefault(); | ||
| break; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| view.dom.addEventListener("beforeinput", onBeforeInput); | ||
| return () => view.dom.removeEventListener("beforeinput", onBeforeInput); | ||
| }, [view]); | ||
| } |
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