Function domToPos

external/.scrollLibs.js:12571–12596

(cm, node, offset)

  }

  function domToPos(cm, node, offset) {
    var lineNode
    if (node == cm.display.lineDiv) {
      lineNode = cm.display.lineDiv.childNodes[offset]
      if (!lineNode) {
        return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true)
      }
      node = null
      offset = 0
    } else {
      for (lineNode = node; ; lineNode = lineNode.parentNode) {
        if (!lineNode || lineNode == cm.display.lineDiv) {
          return null
        }
        if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) {
          break
        }
      }
    }
    for (var i = 0; i < cm.display.view.length; i++) {
      var lineView = cm.display.view[i]
      if (lineView.node == lineNode) {
        return locateNodeInLineView(lineView, node, offset)
      }
    }
  }

  function locateNodeInLineView(lineView, node, offset) {
    var wrapper = lineView.text.firstChild,