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/*
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* 绉诲姩绔ā鎷熷鑸彲鐐瑰嚮鑷姩婊戝姩 0.1.4
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* Date: 2017-01-11
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* by: xiewei
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* 瀵艰埅鍙乏鍙虫粦鍔紝鍙偣鍑昏竟缂樼殑涓€涓紝鑷姩婊氬姩涓嬩竴涓埌鍙鑼冨洿銆愪緷璧栦簬iscroll.js銆<EFBFBD>
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*/
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(function ($) {
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$.fn.navbarscroll = function (options) {
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//鍚勭灞炴€с€佸弬鏁<EFBFBD>
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var _defaults = {
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className:'cur', //褰撳墠閫変腑鐐瑰嚮鍏冪礌鐨刢lass绫诲悕
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clickScrollTime:300, //鐐瑰嚮鍚庢粦鍔ㄦ椂闂<EFBFBD>
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duibiScreenWidth:0.4, //鍗曚綅浠em涓哄噯锛岄粯璁や负0.4rem
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scrollerWidth:3, //鍗曚綅浠x涓哄噯锛岄粯璁や负3,[浠呯敤浜庣壒娈婃儏鍐碉細澶栧眰瀹藉害鍥犱负灏忔暟鐐归€犳垚鐨勪笉绮惧噯鎯呭喌]
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defaultSelect:0, //鍒濆閫変腑绗琻涓紝榛樿绗<EFBFBD>0涓<EFBFBD>
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fingerClick:0, //鐩爣绗<EFBFBD>0鎴<EFBFBD>1涓€夐」瑙﹀彂,蹇呴』姣忎竴椤归暱搴︿竴鑷达紝鏂瑰彲鐢ㄦ椤<EFBFBD>
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endClickScroll:function(thisObj){}//鍥炶皟鍑芥暟
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}
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var _opt = $.extend(_defaults, options);
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this.each(function () {
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//鎻掍欢瀹炵幇浠ｇ爜
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var _wrapper = $(this);
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var _win = $(window);
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var _win_width = _win.width(),_wrapper_width = _wrapper.width(),_wrapper_off_left = _wrapper.offset().left;
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var _wrapper_off_right=_win_width-_wrapper_off_left-_wrapper_width;
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var _obj_scroller = _wrapper.children('.scroller');
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var _obj_ul = _obj_scroller.children('ul');
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var _obj_li = _obj_ul.children('li');
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var _scroller_w = 0;
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_obj_li.css({"margin-left":"0","margin-right":"0"});
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for (var i = 0; i < _obj_li.length; i++) {
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_scroller_w += _obj_li[i].offsetWidth;
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}
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_obj_scroller.width(_scroller_w+_opt.scrollerWidth);
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var myScroll = new IScroll('#'+_wrapper.attr('id'), {
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eventPassthrough: true,
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scrollX: true,
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scrollY: false,
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preventDefault: false
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});
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_init(_obj_li.eq(_opt.defaultSelect));
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_obj_li.click(function(){
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_init($(this));
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});
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//瑙ｅ喅PC绔胺姝屾祻瑙堝櫒妯℃嫙鐨勬墜鏈哄睆骞曞嚭鐜拌帿鍚嶇殑鍗￠】鐜拌薄锛屾粦鍔ㄦ椂绂佹榛樿浜嬩欢锛<EFBFBD>2017-01-11锛<EFBFBD>
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_wrapper[0].addEventListener('touchmove',function (e){e.preventDefault();},false);
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function _init(thiObj){
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var $this_obj=thiObj;
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var duibi=_opt.duibiScreenWidth*_win_width/10,this_index=$this_obj.index(),this_off_left=$this_obj.offset().left,this_pos_left=$this_obj.position().left,this_width=$this_obj.width(),this_prev_width=$this_obj.prev('li').width(),this_next_width=$this_obj.next('li').width();
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var this_off_right=_win_width-this_off_left-this_width;
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if(_scroller_w+2>_wrapper_width){
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if(_opt.fingerClick==1){
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if(this_index==1){
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myScroll.scrollTo(-this_pos_left+this_prev_width,0, _opt.clickScrollTime);
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}else if(this_index==0){
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myScroll.scrollTo(-this_pos_left,0, _opt.clickScrollTime);
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}else if(this_index==_obj_li.length-2){
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myScroll.scrollBy(this_off_right-_wrapper_off_right-this_width,0, _opt.clickScrollTime);
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}else if(this_index==_obj_li.length-1){
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myScroll.scrollBy(this_off_right-_wrapper_off_right,0, _opt.clickScrollTime);
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}else{
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if(this_off_left-_wrapper_off_left-(this_width*_opt.fingerClick)<duibi){
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myScroll.scrollTo(-this_pos_left+this_prev_width+(this_width*_opt.fingerClick),0, _opt.clickScrollTime);
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}else if(this_off_right-_wrapper_off_right-(this_width*_opt.fingerClick)<duibi){
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myScroll.scrollBy(this_off_right-this_next_width-_wrapper_off_right-(this_width*_opt.fingerClick),0, _opt.clickScrollTime);
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}
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}
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}else{
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if(this_index==1){
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myScroll.scrollTo(-this_pos_left+this_prev_width,0, _opt.clickScrollTime);
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}else if(this_index==_obj_li.length-1){
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if(this_off_right-_wrapper_off_right>1||this_off_right-_wrapper_off_right<-1){
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myScroll.scrollBy(this_off_right-_wrapper_off_right,0, _opt.clickScrollTime);
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}
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}else{
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if(this_off_left-_wrapper_off_left<duibi){
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myScroll.scrollTo(-this_pos_left+this_prev_width,0, _opt.clickScrollTime);
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}else if(this_off_right-_wrapper_off_right<duibi){
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myScroll.scrollBy(this_off_right-this_next_width-_wrapper_off_right,0, _opt.clickScrollTime);
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}
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}
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}
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}
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$this_obj.addClass(_opt.className).siblings('li').removeClass(_opt.className);
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_opt.endClickScroll.call(this,$this_obj);
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}
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});
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};
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})(jQuery); |
