此滚动条仅支持竖向（Y轴）
一、Css
1 /*这里是让用户鼠标在里面不能选中文字，避免拖动的时候出错*/
2 body { -moz-user-select: none; /*火狐*/ -webkit-user-select: none; /*webkit浏览器*/ -ms-user-select: none; /*IE10*/ -khtml-user-select: none; /*早期浏览器*/ user-select: none; }
3
4 /*滚动文本及滚动条大框*/
5 .scroll_con { width: 500px; height: 500px; background-color: #5c0af7; position: relative; overflow-y: hidden; }
6
7 /*滚动文本*/
8 .scroll_text { width: 480px; font-size: 14px; word-break: break-word; color: #ffffff; position: absolute; left: 0; top: 0; }
9
10 /*滚动条整体框*/
11 .scroll { height: 500px; background-color: #2e03c4; position: absolute; left: 486px; top: 0; }
12 .scroll，.scroll .scroll_cen, .scroll .scroll_up, .scroll .scroll_down { width: 14px; }
13 /*滚轮上下按钮*/
14 .scroll .scroll_up, .scroll .scroll_down { height: 20px; line-height: 20px; background-color: #7263f8; color: #ffffff; font-size: 14px; font-weight: bold; text-align: center; }
15 .scroll .scroll_up:hover, .scroll .scroll_down:hover { background-color: #9da2f8; cursor: pointer; }
16 /*滚动滚动轨道*/
17 .scroll .scroll_cen { height: 460px; background-color: #2e03c4; position: relative; }
18 .scroll .scroll_cen .scroll_button { width: 12px; margin: 0px 1px; background-color: #7263f8; border-radius: 5px; position: absolute; cursor: pointer; }
二、Html
1 <!DOCTYPE html>
2 <html>
3 <head>
4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
5 <title></title>
6 <meta charset="utf-8" />
7 <script src="/jquery-1.10.2.js"></script>
8 <script src="/mousewheel.js"></script>
9 <script src="/scroll.js"></script>
10 </head>
11
12 <body>
13 <div class="scroll_con">
14 <div class="scroll_text">
15 你需要放在滚动条可滑动区域的文本
16 </div>
17 </div>
18
19 <script type="text/javascript">
20 //滚动条方法调用，括号里的数字为滑动速度
21 $(".scroll_con").LeonaScroll(50);
22 </script>
23
24 </body>
25 </html>
三、Js
1 $.fn.extend({
2 LeonaScroll: function (speed) {
3 return this.each(function () {
4 var elem = $(this);
5 var celem = $(this).find(".scroll_text");
6 var index = $(this).index();
7 //添加滚动条
8 scrollHTML = "";
9 scrollHTML += "<div class=‘scroll_up leonaup" + index + "‘>∧</div>";
10 scrollHTML += "<div class=‘scroll_cen leonacen" + index + "‘><div class=‘scroll_button leonabutton" + index + "‘></div></div>";
11 scrollHTML += "<div class=‘scroll_down leonadown" + index + "‘>∨</div>";
12 $(elem).append("<div class=‘scroll leonas" + index + "‘> " + scrollHTML + "</div>");
13
14 var text_hidden = $(elem).height(),
15 text_show = $(celem).height(),
16 scroll_b = $(".leonabutton" + index + ""),
17 text_p = text_hidden / text_show,
18 bH_max = $(".leonas" + index + " .leonacen" + index + "").height(),
19 bH = text_p * bH_max;
20 if (text_p >= 1) $(".leonas" + index + "").css("display", "none"); else { $(".leonas" + index + "").css("display", "block"); scroll_b.css("height", bH + "px"); }
21
22 //鼠标拖动div事件
23 var needMove = false, mouseY = 0;
24 scroll_b.mousedown(function (event) { needMove = true; var bH_Top = scroll_b.position().top; mouseY = event.pageY - bH_Top; });
25 $(document).mouseup(function (event) { needMove = false; });
26 $(document).mousemove(function (event) {
27 if (needMove) {
28 var sMouseY = event.pageY, bH_Top = sMouseY - mouseY, textY = bH_Top / bH_max * text_show;
29 if (bH_Top <= 0) {
30 scroll_b.css("top", 0);
31 $(celem).css("top", 0);
32 return;
33 }
34 if (bH_Top >= bH_max - bH) {
35 scroll_b.css("top", bH_max - bH);
36 $(celem).css("top", text_hidden - text_show);
37 return;
38 }
39 scroll_b.css("top", bH_Top); $(celem).css("top", -textY);
40 }
41 return;
42 });
43
44 function goGun(direction, timer) {
45 bH_Top = scroll_b.position().top;
46 var h = 0; h += speed; //调节滑动速度
47 if (direction == 1) { //up
48 var Toping = bH_Top - h;
49 if (bH_Top <= 0 || Toping <= 0) {
50 scroll_b.css("top", 0);
51 $(celem).css("top", 0);
52 if (timer == 2) clearInterval(goThread); //need timer
53 return;
54 }
55 scroll_b.css("top", bH_Top - h);
56 }
57 if (direction == -1) { //down
58 var Downing = bH_Top + h;
59 if (bH_Top >= bH_max - bH || Downing >= bH_max - bH) {
60 scroll_b.css("top", bH_max - bH);
61 $(celem).css("top", text_hidden - text_show);
62 if (timer == 2) clearInterval(goThread); //need timer
63 return;
64 }
65 scroll_b.css("top", bH_Top + h);
66 }
67 var textY = bH_Top / bH_max * text_show;
68 $(celem).css("top", -textY);
69 }
70
71 //上下微调按钮事件
72 function minTiao(minTB, d, t) {
73 var goThread = "";
74 minTB.mouseup(function () { clearInterval(goThread); });
75 minTB.mousedown(function () {
76 clearInterval(goThread);
77 goThread = setInterval(function () { goGun(d, t); }, 300);
78 });
79 minTB.click(function () { goGun(d); });
80 }
81 minTiao($(".leonaup" + index + ""), 1, 2);
82 minTiao($(".leonadown" + index + ""), -1, 2);
83
84 //滚轮事件
85 $(elem).bind("mousewheel", function (event, delta, deltaX, deltaY) {
86 if (delta == 1) {
87 goGun(1, 0);
88 if (scroll_b.position().top != 0)
89 return false;
90 } if (delta == -1) {
91 goGun(-1, 0);
92 if (Math.ceil(scroll_b.position().top) != Math.ceil(bH_max - bH))
93 return false;
94 }
95 });
96 });
97 }
98 });
四、插件下载链接：http://share.weiyun.com/143696ddb7e1f11ad47b7782ed629cbb （密码：vrml）【内含压缩的js】
时间： 2024-08-19 00:45:37