https://www.tongjihospital.com.cn/static/index/js/Marquee.js

1/**
2 * @classDescription 超级Marquee，可做图片导航，图片轮换
3 * @author Aken Li(www.kxbd.com)
4 * @date 2009-07-27
5 * @dependence jQuery 1.3.2
6 * @DOM
7 *  	<div id="marquee">
8 *  		<ul>
9 *   			<li></li>
10 *   			<li></li>
11 *  		</ul>
12 *  	</div>
13 * @CSS
14 *  	#marquee {width:200px;height:50px;overflow:hidden;}
15 * @Usage
16 *  	$('#marquee').kxbdSuperMarquee(options);
17 * @options
18 *		distance:200,//一次滚动的距离
19 *		duration:20,//缓动效果，单次移动时间，越小速度越快，为0时无缓动效果
20 *		time:5,//停顿时间，单位为秒
21 *		direction: 'left',//滚动方向，'left','right','up','down'
22 *		scrollAmount:1,//步长
23 *		scrollDelay:20//时长，单位为毫秒
24 *		isEqual:true,//所有滚动的元素长宽是否相等,true,false
25 *		loop: 0,//循环滚动次数，0时无限
26 *		btnGo:{left:'#goL',right:'#goR'},//控制方向的按钮ID，有四个属性left,right,up,down分别对应四个方向
27 *		eventGo:'click',//鼠标事件
28 *		controlBtn:{left:'#goL',right:'#goR'},//控制加速滚动的按钮ID，有四个属性left,right,up,down分别对应四个方向
29 *		newAmount:4,//加速滚动的步长
30 *		eventA:'mouseenter',//鼠标事件，加速
31 *		eventB:'mouseleave',//鼠标事件，原速
32 *		navId:'#marqueeNav', //导航容器ID，导航DOM:<ul><li>1</li><li>2</li><ul>,导航CSS:.navOn
33 *		eventNav:'click' //导航事件
34 */
35(function($){
36
37	$.fn.kxbdSuperMarquee = function(options){
38		var opts = $.extend({},$.fn.kxbdSuperMarquee.defaults, options);
39		
40		return this.each(function(){
41			var $marquee = $(this);//滚动元素容器
42			var _scrollObj = $marquee.get(0);//滚动元素容器DOM
43			var scrollW = $marquee.width();//滚动元素容器的宽度
44			var scrollH = $marquee.height();//滚动元素容器的高度
45			var $element = $marquee.children(); //滚动元素
46			var $kids = $element.children();//滚动子元素
47			var scrollSize=0;//滚动元素尺寸
48			var _type = (opts.direction == 'left' || opts.direction == 'right') ? 1:0;//滚动类型，1左右，0上下
49			var scrollId, rollId, isMove, marqueeId;
50			var t,b,c,d,e; //滚动动画的参数,t:当前时间，b:开始的位置，c:改变的位置，d:持续的时间，e:结束的位置
51			var _size, _len; //子元素的尺寸与个数
52			var $nav,$navBtns;
53			var arrPos = []; 
54			var numView = 0; //当前所看子元素
55			var numRoll=0; //轮换的次数
56			var numMoved = 0;//已经移动的距离
57
58			//防止滚动子元素比滚动元素宽而取不到实际滚动子元素宽度
59			$element.css(_type?'width':'height',10000);
60			//获取滚动元素的尺寸
61			var navHtml = '<ul>';
62			if (opts.isEqual) {
63				_size = $kids[_type?'outerWidth':'outerHeight']();
64				_len = $kids.length;
65				scrollSize = _size * _len;
66				for(var i=0;i<_len;i++){
67					arrPos.push(i*_size);
68					navHtml += '<li></li>';
69				}
70			}else{
71				$kids.each(function(i){
72					arrPos.push(scrollSize);
73					scrollSize += $(this)[_type?'outerWidth':'outerHeight']();
74					navHtml += '<li></li>';
75				});
76			}
77			navHtml += '</ul>';
78			
79			//滚动元素总尺寸小于容器尺寸，不滚动
80			if (scrollSize<(_type?scrollW:scrollH)) return; 
81			//克隆滚动子元素将其插入到滚动元素后，并设定滚动元素宽度
82			$element.append($kids.clone()).css(_type?'width':'height',scrollSize*2);
83			
84			//轮换导航
85			if (opts.navId) {
86				$nav = $(opts.navId).append(navHtml).hover( stop, start );
87				$navBtns = $('li', $nav);
88				$navBtns.each(function(i){
89					$(this).bind(opts.eventNav,function(){
90						if(isMove) return;
91						if(numView==i) return;
92						rollFunc(arrPos[i]);
93						$navBtns.eq(numView).removeClass('navOn');
94						numView = i;
95						$(this).addClass('navOn');
96					});
97				});
98				$navBtns.eq(numView).addClass('navOn');
99			}
100			
101			//设定初始位置
102			if (opts.direction == 'right' || opts.direction == 'down') {
103				_scrollObj[_type?'scrollLeft':'scrollTop'] = scrollSize;
104			}else{
105				_scrollObj[_type?'scrollLeft':'scrollTop'] = 0;
106			}
107			
108			if(opts.isMarquee){
109				//滚动开始
110				//marqueeId = setInterval(scrollFunc, opts.scrollDelay);
111				marqueeId = setTimeout(scrollFunc, opts.scrollDelay);
112				//鼠标划过停止滚动
113				$marquee.hover(
114					function(){
115						clearInterval(marqueeId);
116					},
117					function(){
118						//marqueeId = setInterval(scrollFunc, opts.scrollDelay);
119						clearInterval(marqueeId);
120						marqueeId = setTimeout(scrollFunc, opts.scrollDelay);
121					}
122				);
123				
124				//控制加速运动
125				if(opts.controlBtn){
126					$.each(opts.controlBtn, function(i,val){
127						$(val).bind(opts.eventA,function(){
128							opts.direction = i;
129							opts.oldAmount = opts.scrollAmount;
130							opts.scrollAmount = opts.newAmount;
131						}).bind(opts.eventB,function(){
132							opts.scrollAmount = opts.oldAmount;
133						});

134					});
135				}
136			}else{
137				if(opts.isAuto){
138					//轮换开始
139					start();
140					
141					//鼠标划过停止轮换
142					$marquee.hover( stop, start );
143				}
144			
145				//控制前后走
146				if(opts.btnGo){
147					$.each(opts.btnGo, function(i,val){
148						$(val).bind(opts.eventGo,function(){
149							if(isMove == true) return;
150							opts.direction = i;
151							rollFunc();
152							if (opts.isAuto) {
153								stop();
154								start();
155							}
156						});
157					});
158				}
159			}
160			
161			function scrollFunc(){
162				var _dir = (opts.direction == 'left' || opts.direction == 'right') ? 'scrollLeft':'scrollTop';
163				
164				if(opts.isMarquee){
165					if (opts.loop > 0) {
166						numMoved+=opts.scrollAmount;
167						if(numMoved>scrollSize*opts.loop){
168							_scrollObj[_dir] = 0;
169							return clearInterval(marqueeId);
170						} 
171					}
172					var newPos = _scrollObj[_dir]+(opts.direction == 'left' || opts.direction == 'up'?1:-1)*opts.scrollAmount;
173				}else{
174					if(opts.duration){
175						if(t++<d){
176							isMove = true;
177							var newPos = Math.ceil(easeOutQuad(t,b,c,d));
178							if(t==d){
179								newPos = e;
180							}
181						}else{
182							newPos = e;
183							clearInterval(scrollId);
184							isMove = false;
185							return;
186						}
187					}else{
188						var newPos = e;
189						clearInterval(scrollId);
190					}
191				}
192				
193				if(opts.direction == 'left' || opts.direction == 'up'){
194					if(newPos>=scrollSize){
195						newPos-=scrollSize;
196					}
197				}else{
198					if(newPos<=0){
199						newPos+=scrollSize;
200					}
201				}
202				_scrollObj[_dir] = newPos;
203				
204				if(opts.isMarquee){
205					marqueeId = setTimeout(scrollFunc, opts.scrollDelay);
206				}else if(t<d){
207					if(scrollId) clearTimeout(scrollId);
208					scrollId = setTimeout(scrollFunc, opts.scrollDelay);
209				}else{
210					isMove = false;
211				}
212				
213			};
214			
215			function rollFunc(pPos){
216				isMove = true;
217				var _dir = (opts.direction == 'left' || opts.direction == 'right') ? 'scrollLeft':'scrollTop';
218				var _neg = opts.direction == 'left' || opts.direction == 'up'?1:-1;
219
220				numRoll = numRoll +_neg;
221				//得到当前所看元素序号并改变导航CSS
222				if(pPos == undefined&&opts.navId){
223					$navBtns.eq(numView).removeClass('navOn');
224					numView +=_neg;
225					if(numView>=_len){
226						numView = 0;
227					}else if(numView<0){
228						numView = _len-1;
229					}
230					$navBtns.eq(numView).addClass('navOn');
231					numRoll = numView;
232				}
233
234				var _temp = numRoll<0?scrollSize:0;
235				t=0;
236				b=_scrollObj[_dir];
237				//c=(pPos != undefined)?pPos:_neg*opts.distance;
238				e=(pPos != undefined)?pPos:_temp+(opts.distance*numRoll)%scrollSize;
239				if(_neg==1){
240					if(e>b){
241						c = e-b;
242					}else{
243						c = e+scrollSize -b;
244					}
245				}else{
246					if(e>b){
247						c =e-scrollSize-b;
248					}else{
249						c = e-b;
250					}
251				}
252				d=opts.duration;
253				
254				//scrollId = setInterval(scrollFunc, opts.scrollDelay);
255				if(scrollId) clearTimeout(scrollId);
256				scrollId = setTimeout(scrollFunc, opts.scrollDelay);
257			}
258			
259			function start(){
260				rollId = setInterval(function(){
261					rollFunc();
262				}, opts.time*1000);
263			}
264			function stop(){
265				clearInterval(rollId);
266			}
267			
268			function easeOutQuad(t,b,c,d){
269				return -c *(t/=d)*(t-2) + b;
270			}
271			
272			function easeOutQuint(t,b,c,d){
273				return c*((t=t/d-1)*t*t*t*t + 1) + b;
274			}
275
276		});
277	};
278	$.fn.kxbdSuperMarquee.defaults = {
279		isMarquee:false,//是否为Marquee
280		isEqual:true,//所有滚动的元素长宽是否相等,true,false
281		loop: 0,//循环滚动次数，0时无限
282		newAmount:3,//加速滚动的步长
283		eventA:'mousedown',//鼠标事件，加速
284		eventB:'mouseup',//鼠标事件，原速
285		isAuto:true,//是否自动轮换
286		time:5,//停顿时间，单位为秒
287		duration:50,//缓动效果，单次移动时间，越小速度越快，为0时无缓动效果
288		eventGo:'click', //鼠标事件，向前向后走
289		direction: 'left',//滚动方向，'left','right','up','down'
290		scrollAmount:1,//步长
291		scrollDelay:10,//时长
292		eventNav:'click'//导航事件
293	};
294	
295	$.fn.kxbdSuperMarquee.setDefaults = function(settings) {
296		$.extend( $.fn.kxbdSuperMarquee.defaults, settings );
297	};
298	
299})(jQuery);
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314