Function buildLineElement

static/editor.md/lib/codemirror/lib/codemirror.js:994–1004

(cm, lineView, lineN, dims)

  // Build a line's DOM representation from scratch
  function buildLineElement(cm, lineView, lineN, dims) {
    var built = getLineContent(cm, lineView);
    lineView.text = lineView.node = built.pre;
    if (built.bgClass) lineView.bgClass = built.bgClass;
    if (built.textClass) lineView.textClass = built.textClass;

    updateLineClasses(lineView);
    updateLineGutter(cm, lineView, lineN, dims);
    insertLineWidgets(cm, lineView, dims);
    return lineView.node;
  }

  // A lineView may contain multiple logical lines (when merged by
  // collapsed spans). The widgets for all of them need to be drawn.