1/*! 2 * jQuery cxScroll 1.2.1 3 * http://code.ciaoca.com/ 4 * https://github.com/ciaoca/cxScroll 5 * E-mail: [email protected] 6 * Released under the MIT license 7 * Date: 2014-03-10 8 */ 9(function($){ 10 $.fn.cxScroll=function(settings){ 11 if(!this.length){return}; 12 settings=$.extend({},$.cxScroll.defaults,settings); 13 14 var obj=this; 15 var scroller={ 16 lock:false, 17 dom:{} 18 }; 19 20 scroller.init=function(){ 21 scroller.dom.box=obj.find(".box"); 22 scroller.dom.list=scroller.dom.box.find(".list"); 23 scroller.dom.items=scroller.dom.list.find("li"); 24 scroller.itemSum=scroller.dom.items.length; 25 26 // 没æå ç´ æåªæ1个å ç´ æ¶ï¼ä¸è¿è¡æ»å¨ 27 if(scroller.itemSum<=1){return}; 28 29 scroller.dom.prevBtn=obj.find(".prev"); 30 scroller.dom.nextBtn=obj.find(".next"); 31 scroller.itemWidth=scroller.dom.items.outerWidth(); 32 scroller.itemHeight=scroller.dom.items.outerHeight(); 33 34 if(settings.direction=="left"||settings.direction=="right"){ 35 // 容å¨å®½åº¦ä¸è¶³æ¶ï¼ä¸è¿è¡æ»å¨ 36 if(scroller.itemWidth*scroller.itemSum<=scroller.dom.box.outerWidth()){return}; 37 38 scroller.prevVal="left"; 39 scroller.nextVal="right"; 40 scroller.moveVal=scroller.itemWidth; 41 }else{ 42 // 容å¨é«åº¦ä¸è¶³æ¶ï¼ä¸è¿è¡æ»å¨ 43 if(scroller.itemHeight*scroller.itemSum<=scroller.dom.box.outerHeight()){return}; 44 45 scroller.prevVal="top"; 46 scroller.nextVal="bottom"; 47 scroller.moveVal=scroller.itemHeight; 48 }; 49 50 // å ç´ ï¼åè¡¥ 51 scroller.dom.list.append(scroller.dom.list.html()); 52 53 // æ·»å å ç´ ï¼æå¨æä½æé® 54 if(settings.prevBtn&&!scroller.dom.prevBtn.length){ 55 scroller.dom.prevBtn=$("<a></a>",{"class":"prev"}).prependTo(obj); 56 }; 57 if(settings.nextBtn&&!scroller.dom.nextBtn.length){ 58 scroller.dom.nextBtn=$("<a></a>",{"class":"next"}).prependTo(obj); 59 }; 60 61 // äºä»¶ï¼é¼ æ ç§»å ¥åæ¢ï¼ç§»åºå¼å§ 62 if(settings.auto){ 63 obj.hover(function(){ 64 settings.auto=false; 65 scroller.lock=false; 66 scroller.off(); 67 },function(){ 68 settings.auto=true; 69 scroller.lock=false; 70 scroller.on(); 71 }); 72 }; 73 74 scroller.bindEvents(); 75 scroller.on(); 76 }; 77 78 scroller.bindEvents=function(){ 79 if(settings.nextBtn&&scroller.dom.prevBtn.length){ 80 scroller.dom.nextBtn.bind("click",function(){ 81 if(!scroller.lock){ 82 scroller.goto(scroller.nextVal,settings.accel); 83 }; 84 }); 85 }; 86 if(settings.prevBtn&&scroller.dom.prevBtn.length){ 87 scroller.dom.prevBtn.bind("click",function(){ 88 if(!scroller.lock){ 89 scroller.goto(scroller.prevVal,settings.accel); 90 }; 91 }); 92 }; 93 }; 94 95 // æ¹æ³ï¼å¼å§ 96 scroller.on=function(){ 97 if(!settings.auto){return}; 98 if(typeof(scroller.run)!=="undefined"){ 99 clearTimeout(scroller.run); 100 }; 101 102 scroller.run=setTimeout(function(){ 103 scroller.goto(settings.direction); 104 },settings.time); 105 }; 106 107 // æ¹æ³ï¼åæ¢ 108 scroller.off=function(){ 109 scroller.dom.box.stop(true); 110 if(typeof(scroller.run)!=="undefined"){ 111 clearTimeout(scroller.run); 112 }; 113 }; 114 115 // æ¹æ³ï¼æ»å¨ 116 scroller.goto=function(d,t){ 117 scroller.off(); 118 if(settings.controlLock){ 119 scroller.lock=true; 120 }; 121 122 var _max; // _max æ»å¨çæ大é度 123 var _dis; // _dis æ»å¨çè·ç¦» 124 var _speed=t||settings.speed; 125 126 switch(d){ 127 case "left": 128 case "top": 129 _max=0; 130 if(d=="left"){ 131 if(parseInt(scroller.dom.box.scrollLeft(),10)==0){ 132 scroller.dom.box.scrollLeft(scroller.itemSum*scroller.moveVal); 133 }; 134 _dis=scroller.dom.box.scrollLeft()-(scroller.moveVal*settings.step); 135 if(_dis%scroller.itemWidth>0){ 136 _dis-=(_dis%scroller.itemWidth)-scroller.itemWidth; 137 }; 138 if(_dis<_max){_dis=_max}; 139 scroller.dom.box.animate({"scrollLeft":_dis},_speed,settings.easing,function(){ 140 if(parseInt(scroller.dom.box.scrollLeft(),10)<=_max){ 141 scroller.dom.box.scrollLeft(0); 142 }; 143 }); 144 }else{ 145 if(parseInt(scroller.dom.box.scrollTop(),10)==0){ 146 scroller.dom.box.scrollTop(scroller.itemSum*scroller.moveVal); 147 }; 148 _dis=scroller.dom.box.scrollTop()-(scroller.moveVal*settings.step); 149 if(_dis%scroller.itemHeight>0){ 150 _dis-=(_dis%scroller.itemHeight)-scroller.itemHeight; 151 }; 152 if(_dis<_max){_dis=_max}; 153 scroller.dom.box.animate({"scrollTop":_dis},_speed,settings.easing,function(){ 154 if(parseInt(scroller.dom.box.scrollTop(),10)<=_max){ 155 scroller.dom.box.scrollTop(0); 156 }; 157 });
158 }; 159 break; 160 161 case "right": 162 case "bottom": 163 _max=scroller.itemSum*scroller.moveVal; 164 if(d=="right"){ 165 _dis=scroller.dom.box.scrollLeft()+(scroller.moveVal*settings.step); 166 if(_dis%scroller.itemWidth>0){ 167 _dis-=(_dis%scroller.itemWidth); 168 }; 169 if(_dis>_max){_dis=_max}; 170 scroller.dom.box.animate({"scrollLeft":_dis},_speed,settings.easing,function(){ 171 if(parseInt(scroller.dom.box.scrollLeft(),10)>=_max){ 172 scroller.dom.box.scrollLeft(0); 173 }; 174 }); 175 }else{ 176 _dis=scroller.dom.box.scrollTop()+(scroller.moveVal*settings.step); 177 if(_dis%scroller.itemHeight>0){ 178 _dis-=(_dis%scroller.itemHeight); 179 }; 180 if(_dis>_max){_dis=_max}; 181 scroller.dom.box.animate({"scrollTop":_dis},_speed,settings.easing,function(){ 182 if(parseInt(scroller.dom.box.scrollTop(),10)>=_max){ 183 scroller.dom.box.scrollTop(0); 184 }; 185 }); 186 }; 187 break; 188 189 // not default 190 }; 191 192 scroller.dom.box.queue(function(){ 193 if(settings.controlLock){ 194 scroller.lock=false; 195 }; 196 scroller.on(); 197 $(this).dequeue(); 198 }); 199 }; 200 201 scroller.init(); 202 }; 203 204 // é»è®¤å¼ 205 $.cxScroll={defaults:{ 206 direction:"right", // æ»å¨æ¹å 207 easing:"swing", // ç¼å¨æ¹å¼ 208 step:1, // æ»å¨æ¥é¿ 209 accel:160, // æå¨æ»å¨é度 210 speed:800, // èªå¨æ»å¨é度 211 time:4000, // èªå¨æ»å¨é´éæ¶é´ 212 auto:true, // æ¯å¦èªå¨æ»å¨ 213 prevBtn:true, // æ¯å¦ä½¿ç¨ prev æé® 214 nextBtn:true, // æ¯å¦ä½¿ç¨ next æé® 215 safeLock:true // æ»å¨æ¶æ¯å¦éå®æ§å¶æé® 216 }}; 217})(jQuery);
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