首页 前端知识 大屏 列表上下滚动 插件 liMarquee – jQuery,2024年字节跳动74道高级程序员面试

大屏 列表上下滚动 插件 liMarquee – jQuery,2024年字节跳动74道高级程序员面试

2024-05-28 09:05:56 前端知识 前端哥 372 744 我要收藏

var strWrapStyle = strWrap.attr(‘style’);

if(strWrapStyle){

var wrapStyleArr = strWrapStyle.split(‘;’);

var startHeight = false;

for(var i=0; i < wrapStyleArr.length; i ){

var str = $.trim(wrapStyleArr[i]);

var tested = str.search(/^height/g);

if(tested != -1){

startHeight = parseFloat(strWrap.css(‘height’));

}

}

}

var code = function () {

strWrap.off(‘mouseleave’);

strWrap.off(‘mouseenter’);

strWrap.off(‘mousemove’);

strWrap.off(‘mousedown’);

strWrap.off(‘mouseup’);

if(!$(‘.str_move’,strWrap).length){

strWrap.wrapInner($(‘

’).addClass(‘str_move’));

}

var

strMove = $(‘.str_move’, strWrap).addClass(‘str_origin’),

strMoveClone = strMove.clone().removeClass(‘str_origin’).addClass(‘str_move_clone’),

time = 0;

if (!p.hoverstop) {

strWrap.addClass(‘noStop’);

}

var circCloneHor = function(){

strMoveClone.clone().css({

left:‘100%’,

right:‘auto’,

width: strMove.width()

}).appendTo(strMove);

strMoveClone.css({

right: ‘100%’,

left:‘auto’,

width: strMove.width()

}).appendTo(strMove);

}

var circCloneVert = function(){

strMoveClone.clone().css({

top: ‘100%’,

bottom:‘auto’,

height: strMove.height()

}).appendTo(strMove);

strMoveClone.css({

bottom: ‘100%’,

top:‘auto’,

height:strMove.height()

}).appendTo(strMove);

}

if (p.direction == ‘left’) {

strWrap.height(strMove.outerHeight())

if (strMove.width() > strWrap.width()) {

var leftPos = -strMove.width();

if (p.circular) {

if (!p.xml) {

circCloneHor()

leftPos = -(strMove.width() (strMove.width() - strWrap.width()));

}

}

if (p.xml) {

strMove.css({

left:strWrap.width()

})

}

var

strMoveLeft = strWrap.width(),

k1 = 0,

timeFunc1 = function () {

var

fullS = Math.abs(leftPos),

time = (fullS / strWrap.data(‘scrollamount’)) * 1000;

if (parseFloat(strMove.css(‘left’)) != 0) {

fullS = (fullS strWrap.width());

time = (fullS - (strWrap.width() - parseFloat(strMove.css(‘left’)))) / strWrap.data(‘scrollamount’) * 1000;

}

return time;

},

moveFuncId1 = false,

moveFunc1 = function () {

if (loop != 0) {

strMove.stop(true).animate({

left: leftPos

}, timeFunc1(), ‘linear’, function () {

$(this).css({

left: strWrap.width()

});

if (loop == -1) {

moveFuncId1 = setTimeout(moveFunc1, p.scrolldelay);

} else {

loop–;

moveFuncId1 = setTimeout(moveFunc1, p.scrolldelay);

}

});

}

};

strWrap.data({

moveId: moveFuncId1 ,

moveF : moveFunc1

})

if(!p.inverthover){

moveFunc1();

}

if (p.hoverstop) {

strWrap.on(enterEvent, function () {

$(this).addClass(‘str_active’);

clearTimeout(moveFuncId1);

strMove.stop(true);

}).on(leaveEvent, function () {

$(this).removeClass(‘str_active’);

$(this).off(‘mousemove’);

moveFunc1();

});

if (p.drag) {

strWrap.on(‘mousedown’, function (e) {

if(p.inverthover){

strMove.stop(true);

}

//drag

var dragLeft;

var dir = 1;

var newX;

var oldX = e.clientX;

//drag

strMoveLeft = strMove.position().left;

k1 = strMoveLeft - (e.clientX - strWrap.offset().left);

$(this).on(‘mousemove’, function (e) {

fMove = true;

//drag

newX = e.clientX;

if(newX > oldX){

dir = 1

}else{

dir = -1

}

oldX = newX

dragLeft = k1 (e.clientX - strWrap.offset().left);

if (!p.circular) {

if(dragLeft < -strMove.width() && dir < 0){

dragLeft = strWrap.width();

strMoveLeft = strMove.position().left;

k1 = strMoveLeft - (e.clientX - strWrap.offset().left);

}

if(dragLeft

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