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Original file line number | Diff line number | Diff line change |
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@@ -5,3 +5,4 @@ node_modules | |
local-packages.json | ||
.idea | ||
test | ||
someapp |
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@@ -0,0 +1,63 @@ | ||
var jumpToCode = (function init () { | ||
// Classes of code we would like to highlight | ||
var missingCoverageClasses = [ '.cbranch-no', '.cstat-no', '.fstat-no' ]; | ||
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// 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) > ` | ||
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// 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` | ||
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// The NodeList of matching elements | ||
var missingCoverageElements = document.querySelectorAll(selector); | ||
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var currentIndex; | ||
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function toggleClass(index) { | ||
missingCoverageElements.item(currentIndex).classList.remove('highlighted'); | ||
missingCoverageElements.item(index).classList.add('highlighted'); | ||
} | ||
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function makeCurrent(index) { | ||
toggleClass(index); | ||
currentIndex = index; | ||
missingCoverageElements.item(index) | ||
.scrollIntoView({ behavior: 'smooth', block: 'center', inline: 'center' }); | ||
} | ||
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function goToPrevious() { | ||
var nextIndex = 0; | ||
if (typeof currentIndex !== 'number' || currentIndex === 0) { | ||
nextIndex = missingCoverageElements.length - 1; | ||
} else if (missingCoverageElements.length > 1) { | ||
nextIndex = currentIndex - 1; | ||
} | ||
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makeCurrent(nextIndex); | ||
} | ||
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function goToNext() { | ||
var nextIndex = 0; | ||
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if (typeof currentIndex === 'number' && currentIndex < (missingCoverageElements.length - 1)) { | ||
nextIndex = currentIndex + 1; | ||
} | ||
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makeCurrent(nextIndex); | ||
} | ||
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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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