(cm)
| 604 | // size for the current document size. Returns true when an update |
| 605 | // is needed. |
| 606 | function maybeUpdateLineNumberWidth(cm) { |
| 607 | if (!cm.options.lineNumbers) return false; |
| 608 | var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; |
| 609 | if (last.length != display.lineNumChars) { |
| 610 | var test = display.measure.appendChild(elt("div", [elt("div", last)], |
| 611 | "CodeMirror-linenumber CodeMirror-gutter-elt")); |
| 612 | var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; |
| 613 | display.lineGutter.style.width = ""; |
| 614 | display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1; |
| 615 | display.lineNumWidth = display.lineNumInnerWidth + padding; |
| 616 | display.lineNumChars = display.lineNumInnerWidth ? last.length : -1; |
| 617 | display.lineGutter.style.width = display.lineNumWidth + "px"; |
| 618 | updateGutterSpace(cm); |
| 619 | return true; |
| 620 | } |
| 621 | return false; |
| 622 | } |
| 623 | |
| 624 | function lineNumberFor(options, i) { |
| 625 | return String(options.lineNumberFormatter(i + options.firstLineNumber)); |
no test coverage detected