Function findPosV

external/.scrollLibs.js:11973–11997

(cm, pos, dir, unit)

  // "page" or "line". The resulting position will have a hitSide=true
  // property if it reached the end of the document.
  function findPosV(cm, pos, dir, unit) {
    var doc = cm.doc,
      x = pos.left,
      y
    if (unit == "page") {
      var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight)
      var moveAmount = Math.max(pageSize - 0.5 * textHeight(cm.display), 3)
      y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount
    } else if (unit == "line") {
      y = dir > 0 ? pos.bottom + 3 : pos.top - 3
    }
    var target
    for (;;) {
      target = coordsChar(cm, x, y)
      if (!target.outside) {
        break
      }
      if (dir < 0 ? y <= 0 : y >= doc.height) {
        target.hitSide = true
        break
      }
      y += dir * 5
    }
    return target
  }

  // CONTENTEDITABLE INPUT STYLE