[英]window.scrollTo method doesn't work everytime - JavaScript
[英]Recursive window.scrollTo doesn't work in FireFox. JavaScript
我正在使用此功能來“ onclick”向下滾動頁面:
function moveDown(arg) {
smooth = setTimeout(moveDown, 10);
if(!isFirefox){ ///// This works good for Chrome
window.scrollTo(0, window.pageYOffset + 1);
}
if(isFirefox){ /// Does not work in FireFox
console.log(window.pageYOffset) /// Every iteration returns 0
window.scrollTo(0, window.pageYOffset + 1);
console.log(window.pageYOffset) /// Every iteration returns 1
}
邏輯:每次迭代時,我們都會將pageYOffset增加1 px,但是在FireFox中,每次將其重新設置為0時。 謝謝!
我張貼完整的代碼,因為我自己找不到問題。
function moveDown(arg) {
offset = parseFloat(timeline.style.width) * 7100 / 100;
setTimeout(function() { /// 1 ms - time to calculate offset
window.scroll(0, offset);
}, 1);
if ( typeof arg === 'undefined') { /// makes argument optional
arg = true;
}
if (arg) {
smooth = setTimeout(moveDown, 10); // Timeout makes recursive calls
if (window.pageYOffset > 7100) {
story.pause();
isPlaying = false;
enable_scroll();
animateTimeLine(false);
clearTimeout(smooth);
playButton.style.display = "block";
pauseButton.style.display = "none";
}
if(!isFirefox){
window.scrollTo(0, window.pageYOffset + 7408 / (story.duration * 47));
}
if(isFirefox){
console.log(window.pageYOffset);
window.scrollTo(0, window.pageYOffset + 7408 / (84 * 47));
console.log(window.pageYOffset);
}
}
if (arg == false) {
clearTimeout(smooth);
}
}
playButton.onclick = function() {
moveDown();
}
Firefox中有滾動條嗎? 您必須確保瀏覽器可以滾動。 沒有空間,它將無法正常工作。
這段代碼每200ms向下滾動1px,經過測試並可以在Firefox v25中使用:
<html>
<body onload="window.scrollTo(0,0); smooth = setInterval(moveDown, 200);">
<div style="height:2000px;">scroll</span>
<script>
function moveDown() {
console.log(window.pageYOffset);
window.scrollTo(0, window.pageYOffset + 1);
console.log(window.pageYOffset);
}
</script>
</html>
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