// Figure out whether boldness affects
// the character width of monospace fonts.
if (brokenBold === null) {
- brokenBold = checkBoldBroken((<any>this._terminal).document);
+ brokenBold = checkBoldBroken((<any>this._terminal).element);
}
// TODO: Pull more DOM interactions into Renderer.constructor, element for
// if bold is broken, we can't
// use it in the terminal.
-function checkBoldBroken(document) {
- const body = document.getElementsByTagName('body')[0];
+function checkBoldBroken(terminal) {
+ const document = terminal.ownerDocument;
const el = document.createElement('span');
el.innerHTML = 'hello world';
- body.appendChild(el);
+ terminal.appendChild(el);
const w1 = el.scrollWidth;
el.style.fontWeight = 'bold';
const w2 = el.scrollWidth;
- body.removeChild(el);
+ terminal.removeChild(el);
return w1 !== w2;
}