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src/ngAnimate/animateCache.js
57 строк
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Matias Niemelä
perf(ngAnimate): avoid repeated calls to addClass/removeClass when animation has no duration
05 июл 2018, 20:44
05 июл 2018, 20:44
0e26197
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'use strict'; /** @this */ var $$AnimateCacheProvider = function() { var KEY = '$$ngAnimateParentKey'; var parentCounter = 0; var cache = Object.create(null); this.$get = [function() { return { cacheKey: function(node, method, addClass, removeClass) { var parentNode = node.parentNode; var parentID = parentNode[KEY] || (parentNode[KEY] = ++parentCounter); var parts = [parentID, method, node.getAttribute('class')]; if (addClass) { parts.push(addClass); } if (removeClass) { parts.push(removeClass); } return parts.join(' '); }, containsCachedAnimationWithoutDuration: function(key) { var entry = cache[key]; // nothing cached, so go ahead and animate // otherwise it should be a valid animation return (entry && !entry.isValid) || false; }, flush: function() { cache = Object.create(null); }, count: function(key) { var entry = cache[key]; return entry ? entry.total : 0; }, get: function(key) { var entry = cache[key]; return entry && entry.value; }, put: function(key, value, isValid) { if (!cache[key]) { cache[key] = { total: 1, value: value, isValid: isValid }; } else { cache[key].total++; cache[key].value = value; } } }; }]; };