jQuery不间断滚动效果(模拟百度新闻支持文字/图片/垂直滚动)

2020-05-22 15:59:28易采站长站整理

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<li><a href=”http://opinion.huanqiu.com/opinion_world/2013-01/3467875.html” target=”_blank”>张建刚:2030年中国将圆海洋强国梦</a></li>
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</ul>
</div>
</div>
<script>
jQuery.extend({
roll: function(contentCls, contentParentId, configs){
var setTimeID, totalWidth = 0, totalHeight = 0,
firstContent, secondContent, contents;
(function(){
var singleContent, cloneContent, nodeList;
singleContent = $(contentCls, contentParentId);
nodeList = singleContent.children();
if (configs.effect === ‘scrollX’) {
$.each(nodeList, function(idx, itm) {
totalWidth += $(itm).outerWidth(true);
});
singleContent.css({ ‘width’: totalWidth + ‘px’ });
}
else if (configs.effect === ‘scrollY’) {
$.each(nodeList, function(idx, itm) {
totalHeight += $(itm).outerHeight(true);
});
singleContent.css({ ‘height’: totalHeight + ‘px’ });
}
cloneContent = singleContent.clone();
cloneContent.appendTo(contentParentId);
contents = $(contentCls, contentParentId);
firstContent = contents[0];
secondContent = contents[1];
if (configs.effect === ‘scrollX’) {
$(firstContent).css({ ‘left’: 0 });
$(secondContent).css({ ‘left’: totalWidth + ‘px’ });
}
else if (configs.effect === ‘scrollY’) {
$(firstContent).css({ ‘top’: 0 });
$(secondContent).css({ ‘top’: totalHeight + ‘px’ });
}
})()
function cssAnimate(){
if (configs.effect === ‘scrollX’) {
$(firstContent).css({ left: parseInt(firstContent.style.left, 10) – 1 + ‘px’ });
$(secondContent).css({ left: parseInt(secondContent.style.left, 10) – 1 + ‘px’ });
$.each(contents, function(idx, itm) {
if (parseInt(itm.style.left,10) === -totalWidth) {