web前端|js教程
滑块登录
web前端-js教程
在用户登录界面，好多时候需要验证码，但是用验证码又过于繁琐，所以最近关注了下滑块验证这个东西，可以用js来实现滑块登录的个功能。
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首先html中写入滑块样式,当然css样式就不需要贴了，看心情想弄个什么鬼样子的，随便弄
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写入js文件，
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$("#slider").slider({ width: 400, // width height: 40, // height sliderBg: "rgba(230,245,188)", // 滑块背景颜色 color: "black", // 文字颜色 fontSize: 14, // 文字大小 bgColor: "rgba(78,226,153,0.40)", // 背景颜色 textMsg: "请按住滑块，拖动到最右边", // 提示文字 successMsg: "验证通过", // 验证成功提示文字 successColor: "black", // 滑块验证成功提示文字颜色 time: 400, // 返回时间 callback: function(result) {if(result){//你想干啥}) } // 回调函数，true(成功),false(失败) } });
当然需要引入一个js文件了，这是基于jq的，所以要在jq后面写入它们。
/* jQuery, window, document */(function(t, i, s) { var l = function(i, s) { this.ele = i; this.defaults = { width: 300, height: 34, sliderBg: "#e8e8e8", color: "#666", fontSize: 12, bgColor: "#7ac23c", textMsg: "请按住滑块，拖动到最右边", successMsg: "验证成功", successColor: "#fff", time: 160, callback: function(t) {} }; this.opts = t.extend({}, this.defaults, s); this.init() }; l.prototype = { init: function() { this.result = false; this.sliderBtn_left = 0; this.maxLeft = this.opts.width - this.opts.height; this.render(); this.eventBind() }, render: function() { var t =
+
+ this.opts.textMsg + "
" +
+
+ "
"; this.ele.html(t); this.initStatus() }, initStatus: function() { var t = this; var i = this.ele; this.slider = i.find(".ui-slider-wrap"); this.sliderBtn = i.find(".ui-slider-btn"); this.bgColor = i.find(".ui-slider-bg"); this.sliderText = i.find(".ui-slider-text"); this.slider.css({width: t.opts.width,height: t.opts.height,backgroundColor: t.opts.sliderBg }); this.sliderBtn.css({width: t.opts.height,height: t.opts.height,lineHeight: t.opts.height + "px" }); this.bgColor.css({height: t.opts.height,backgroundColor: t.opts.bgColor }); this.sliderText.css({lineHeight: t.opts.height + "px",fontSize: t.opts.fontSize,color: t.opts.color }) }, restore: function() { var t = this; var i = t.opts.time; this.result = false; this.initStatus(); this.sliderBtn.removeClass("success").animate({left: 0 }, i); this.bgColor.animate({width: 0 }, i, function() {t.sliderText.text(t.opts.textMsg) }) }, eventBind: function() { var t = this; this.ele.on("mousedown", ".ui-slider-btn", function(i) {if(t.result) { return}t.sliderMousedown(i) }) $(.ui-slider-btn).get(0).addEventListener( ouchstart,function(i){if(t.result) { return}t.slidertouchstart(i) }) }, slidertouchstart: function(t){ var i = this; var s = t.touches[0].clientX; var e = s - this.sliderBtn.offset().left; i.slidertouchmove(s, e); i.slidertouchup() }, slidertouchmove: function(i,e){ var l = this; $(.ui-slider-btn).get(0).addEventListener( ouchmove,function(t){if(l.result) return;window.getSelection().removeAllRanges();l.sliderBtn_left = t.touches[0].clientX - i - e;if(l.sliderBtn_left l.maxLeft) { l.sliderBtn_left = l.maxLeft}l.sliderBtn.css("left", l.sliderBtn_left);l.bgColor.width(l.sliderBtn_left) }) }, slidertouchup: function(){ var i = this; $(.ui-slider-btn).get(0).addEventListener( ouchend,function(t){if(i.sliderBtn_left != i.maxLeft) { i.sliderBtn_left = 0} else { i.ele.find(".ui-slider-text").text(i.opts.successMsg).css({ color: i.opts.successColor }); i.ele.find(".ui-slider-btn").addClass("success"); i.result = true;}i.sliderBtn.animate({ left: i.sliderBtn_left}, i.opts.time);i.bgColor.animate({ width: i.sliderBtn_left}, i.opts.time);$(.ui-slider-btn).get(0).ontouchmove = null;if(i.opts.callback && typeof i.opts.callback === "function") { i.opts.callback(i.result)} }) }, sliderMousedown: function(t) { var i = this; var s = t.clientX; var e = s - this.sliderBtn.offset().left; i.sliderMousemove(s, e); i.sliderMouseup() }, sliderMousemove: function(i, e) { var l = this; t(s).on("mousemove.slider", function(t) {window.getSelection().removeAllRanges();l.sliderBtn_left = t.clientX - i - e;if(l.sliderBtn_left l.maxLeft) { l.sliderBtn_left = l.maxLeft}l.sliderBtn.css("left", l.sliderBtn_left);l.bgColor.width(l.sliderBtn_left) }) }, sliderMouseup: function() { var i = this; t(s).on("mouseup.slider", function() {if(i.sliderBtn_left != i.maxLeft) { i.sliderBtn_left = 0} else { i.ele.find(".ui-slider-text").text(i.opts.successMsg).css({ color: i.opts.successColor }); i.ele.find(".ui-slider-btn").addClass("success"); i.result = true}i.sliderBtn.animate({ left: i.sliderBtn_left}, i.opts.time);i.bgColor.animate({ width: i.sliderBtn_left}, i.opts.time);t(this).off("mousemove.slider mouseup.slider");if(i.opts.callback && typeof i.opts.callback === "function") { i.opts.callback(i.result)} }) } }; t.fn.extend({ slider : function(i) { return this.each(function() {var s = t(this);var e = s.data("slider");if(!e) { e = new l(s, i); s.data("slider", e)}if(typeof i === "string") { e[i]()} }) } }) /*t.fn.slider = function(i) { return this.each(function() { var s = t(this); var e = s.data("slider"); if(!e) {e = new l(s, i);s.data("slider", e) } if(typeof i === "string") {e[i]() } }) }*/})(jQuery, window, document);
完毕！
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