aaac7fed
 liuqimichale
add
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var jumpToCode = (function init () {
// Classes of code we would like to highlight
var missingCoverageClasses = [ '.cbranch-no', '.cstat-no', '.fstat-no' ];
// We don't want to select elements that are direct descendants of another match
var notSelector = ':not(' + missingCoverageClasses.join('):not(') + ') > '; // becomes `:not(a):not(b) > `
// Selecter that finds elements on the page to which we can jump
var selector = notSelector + missingCoverageClasses.join(', ' + notSelector); // becomes `:not(a):not(b) > a, :not(a):not(b) > b`
// The NodeList of matching elements
var missingCoverageElements = document.querySelectorAll(selector);
var currentIndex;
function toggleClass(index) {
missingCoverageElements.item(currentIndex).classList.remove('highlighted');
missingCoverageElements.item(index).classList.add('highlighted');
}
function makeCurrent(index) {
toggleClass(index);
currentIndex = index;
missingCoverageElements.item(index)
.scrollIntoView({ behavior: 'smooth', block: 'center', inline: 'center' });
}
function goToPrevious() {
var nextIndex = 0;
if (typeof currentIndex !== 'number' || currentIndex === 0) {
nextIndex = missingCoverageElements.length - 1;
} else if (missingCoverageElements.length > 1) {
nextIndex = currentIndex - 1;
}
makeCurrent(nextIndex);
}
function goToNext() {
var nextIndex = 0;
if (typeof currentIndex === 'number' && currentIndex < (missingCoverageElements.length - 1)) {
nextIndex = currentIndex + 1;
}
makeCurrent(nextIndex);
}
return function jump(event) {
switch (event.which) {
case 78: // n
case 74: // j
goToNext();
break;
case 66: // b
case 75: // k
case 80: // p
goToPrevious();
break;
}
};
}());
window.addEventListener('keydown', jumpToCode);
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