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修正lazyload有时候失效的问题 #1090

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修正lazyload有时候失效的问题 #1090

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c107882
修正lazyload有时候失效的问题
appotry Apr 21, 2024
a2db9c1
使用偏移量
appotry Apr 22, 2024
4147442
优化设计
appotry Apr 22, 2024
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11 changes: 6 additions & 5 deletions source/js/utils.js
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Original file line number Diff line number Diff line change
Expand Up @@ -38,11 +38,12 @@ Fluid.utils = {
elementVisible: function(element, offsetFactor) {
offsetFactor = offsetFactor && offsetFactor >= 0 ? offsetFactor : 0;
var rect = element.getBoundingClientRect();
const viewportHeight = window.innerHeight || document.documentElement.clientHeight;
return (
(rect.top >= 0 && rect.top <= viewportHeight * (1 + offsetFactor) + rect.height / 2) ||
(rect.bottom >= 0 && rect.bottom <= viewportHeight * (1 + offsetFactor) + rect.height / 2)
);
const viewportHeight = (window.innerHeight || document.documentElement.clientHeight) * (1 + offsetFactor);
const viewportWidth = (window.innerWidth || document.documentElement.clientWidth) * (1 + offsetFactor);

// 判断元素的顶部、底部、左侧或右侧是否在视口内
// 如果有一个在视口内,则认为元素可见
return rect.top < viewportHeight || rect.bottom > 0 || rect.left < viewportWidth || rect.right > 0;
},

waitElementVisible: function(selectorOrElement, callback, offsetFactor) {
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