Function ensureLength

src/components/legend/draw.js:625–631

(str, maxLength)

 * no wider than the real labels.
 */
function ensureLength(str, maxLength) {
    var targetLength = Math.max(4, maxLength);
    if(str && str.trim().length >= targetLength / 2) return str;
    str = str || '';
    for(var i = targetLength - str.length; i > 0; i--) str += ' ';
    return str;
}

function setupTraceToggle(g, gd, legendId) {
    var doubleClickDelay = gd._context.doubleClickDelay;