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isInViewport添加offset

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zhw2590582 committed 2021-09-25 19:33:21 +08:00
1 parent d73666475c
commit 2ea92640aa
4 files changed
+9 -8
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docs/uncompiled/artplayer.js
+4 -3
View File
@@ -292,11 +292,12 @@
target.setAttribute('data-balloon-pos', pos);
}
function isInViewport(el) {
var offset = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
var rect = el.getBoundingClientRect();
var windowHeight = window.innerHeight || document.documentElement.clientHeight;
var windowWidth = window.innerWidth || document.documentElement.clientWidth;
var vertInView = rect.top <= windowHeight && rect.top + rect.height >= 0;
var horInView = rect.left <= windowWidth && rect.left + rect.width >= 0;
var vertInView = rect.top <= windowHeight + offset && rect.top + rect.height + offset >= 0;
var horInView = rect.left <= windowWidth + offset && rect.left + rect.width + offset >= 0;
return vertInView && horInView;
}
function includeFromEvent(event, target) {
@@ -3891,7 +3892,7 @@
autoMini = art.option.autoMini,
$container = art.template.$container;
var scrollFn = throttle(function () {
art.emit('view', isInViewport($container));
art.emit('view', isInViewport($container, 50));
}, 200);
events.proxy(window, 'scroll', function () {
scrollFn();