Function extendTo

external/.scrollLibs.js:10228–10271

(pos)

    var lastPos = start
    function extendTo(pos) {
      if (cmp(lastPos, pos) == 0) {
        return
      }
      lastPos = pos

      if (behavior.unit == "rectangle") {
        var ranges = [],
          tabSize = cm.options.tabSize
        var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize)
        var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize)
        var left = Math.min(startCol, posCol),
          right = Math.max(startCol, posCol)
        for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); line <= end; line++) {
          var text = getLine(doc, line).text,
            leftPos = findColumn(text, left, tabSize)
          if (left == right) {
            ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)))
          } else if (text.length > leftPos) {
            ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize))))
          }
        }
        if (!ranges.length) {
          ranges.push(new Range(start, start))
        }
        setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), { origin: "*mouse", scroll: false })
        cm.scrollIntoView(pos)
      } else {
        var oldRange = ourRange
        var range$$1 = rangeForUnit(cm, pos, behavior.unit)
        var anchor = oldRange.anchor,
          head
        if (cmp(range$$1.anchor, anchor) > 0) {
          head = range$$1.head
          anchor = minPos(oldRange.from(), range$$1.anchor)
        } else {
          head = range$$1.anchor
          anchor = maxPos(oldRange.to(), range$$1.head)
        }
        var ranges$1 = startSel.ranges.slice(0)
        ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head))
        setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse)
      }
    }

    var editorSize = display.wrapper.getBoundingClientRect()
    // Used to ensure timeout re-tries don't fire when another extend