Function save

codejar.ts:156–219

()

  })

  function save(): Position {
    const s = getSelection()
    const pos: Position = {start: 0, end: 0, dir: undefined}

    let {anchorNode, anchorOffset, focusNode, focusOffset} = s
    if (!anchorNode || !focusNode) throw 'error1'

    // If the anchor and focus are the editor element, return either a full
    // highlight or a start/end cursor position depending on the selection
    if (anchorNode === editor && focusNode === editor) {
      pos.start = (anchorOffset > 0 && editor.textContent) ? editor.textContent.length : 0
      pos.end = (focusOffset > 0 && editor.textContent) ? editor.textContent.length : 0
      pos.dir = (focusOffset >= anchorOffset) ? '->' : '<-'
      return pos
    }

    // Selection anchor and focus are expected to be text nodes,
    // so normalize them.
    if (anchorNode.nodeType === Node.ELEMENT_NODE) {
      const node = document.createTextNode('')
      anchorNode.insertBefore(node, anchorNode.childNodes[anchorOffset])
      anchorNode = node
      anchorOffset = 0
    }
    if (focusNode.nodeType === Node.ELEMENT_NODE) {
      const node = document.createTextNode('')
      focusNode.insertBefore(node, focusNode.childNodes[focusOffset])
      focusNode = node
      focusOffset = 0
    }

    visit(editor, el => {
      if (el === anchorNode && el === focusNode) {
        pos.start += anchorOffset
        pos.end += focusOffset
        pos.dir = anchorOffset <= focusOffset ? '->' : '<-'
        return 'stop'
      }

      if (el === anchorNode) {
        pos.start += anchorOffset
        if (!pos.dir) {
          pos.dir = '->'
        } else {
          return 'stop'
        }
      } else if (el === focusNode) {
        pos.end += focusOffset
        if (!pos.dir) {
          pos.dir = '<-'
        } else {
          return 'stop'
        }
      }

      if (el.nodeType === Node.TEXT_NODE) {
        if (pos.dir != '->') pos.start += el.nodeValue!.length
        if (pos.dir != '<-') pos.end += el.nodeValue!.length