JavaScript实现滑动解锁功能

滑动解锁功能实现

实现效果如下所示。

CSS样式代码此处省略。

HTML结构

HTML结构代码如下。

页面中已引入jquery.mobile和jquery库文件。

<script src="http://apps.bdimg.com/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="http://apps.bdimg.com/libs/jquerymobile/1.4.2/jquery.mobile.min.js"></script>

<div id="pageSlide">
<input type="hidden" value="" id="captcha"/>
 
<div id="slider" class="slider">
<span id="label" class="label"></span>
<span id="lableTip">Slide to confirm I am human!</span>
</div>
</div>

JavaScript逻辑

JavaScript逻辑代码如下。

<script type="text/javascript">
window.onload = function () {
var slider1 = new Slider();
slider1.Init();
///屏幕大小发生改变时触发
$(window).resize(function () {
slider1.HanderIn();
slider1.HanderOut();
            });
        }
//滑动条对象
function Slider(swipestart, min, max, index, IsOk, lableIndex) {
var _self = this;
//是否开始滑动
_self.swipestart = swipestart;
//最小值
_self.min = min;
//最大值
_self.max = max;
//当前滑动条所处的位置
_self.index = index;
//是否滑动成功
_self.IsOk = IsOk;
//鼠标在滑动按钮的位置
_self.lableIndex = lableIndex;
        }
//初始化
Slider.prototype.Init = function () {
var _self = this;
"#label").on("mousedown", function (event) {
var e = event || window.event;
_self.lableIndex = e.clientX - this.offsetLeft;
_self.HanderIn();
            });
"#pageSlide").on("mousemove", function (event) {
_self.HanderMove(event);
            });
$(document).on("mouseup", function (event) {
_self.HanderOut();
            });
"#label").on("touchstart", function (event) {
var e = event || window.event;
_self.lableIndex = e.originalEvent.pageX - this.offsetLeft;
_self.HanderIn();
            });
"#pageSlide").on("touchmove", function (event) {
_self.HanderMove(event, "mobile");
            });
$(document).on("touchend", function (event) {
_self.HanderOut();
            });
        }
//鼠标/手指接触滑动按钮
Slider.prototype.HanderIn = function () {
var _self = this;
_self.swipestart = true;
_self.min = 0;
_self.max = $("#slider").width();
        }
//鼠标/手指移出
Slider.prototype.HanderOut = function () {
var _self = this;
//停止
_self.swipestart = false;
_self.Move();
        }
//鼠标/手指移动
Slider.prototype.HanderMove = function (event, type) {
var _self = this;
if (_self.swipestart) {
event.preventDefault();
var event = event || window.event;
if (type == "mobile") {
_self.index = event.originalEvent.pageX - _self.lableIndex;
} else {
_self.index = event.clientX - _self.lableIndex;
                }
_self.Move();
            }
        }
//鼠标/手指移出
Slider.prototype.Move = function () {
var _self = this;
".warn").text("index:" + _self.index + "， max" + _self.max + ",lableIndex:" + _self.lableIndex + ",value:" + $("#captcha").val() + " date:" + new Date().getUTCDate());
if ((_self.index + 20) >= _self.max) {
_self.index = _self.max - 20;
            }
if (_self.index < 0) {
_self.index = _self.min;
            }
".label").css("left", _self.index + "px");
if (_self.index == (_self.max - 20)) {
//停止
_self.swipestart = false;
_self.IsOk = true;//解锁
"#captcha").val(1);
var style = {"filter": "alpha(opacity=1)",
"-moz-opacity": "1", "opacity": "1"}
".ui-btn.ui-input-btn.ui-corner-all.ui-shadow").css(style);
"#slider").css("background-color", "#E5EE9F");
"#lableTip").text("Thank You!");
} else {
_self.IsOk = false;//未解锁
"#captcha").val(0);
var style = { "filter": "alpha(opacity=0.2)",
"-moz-opacity": "0.2", "opacity": "0.2"}
".ui-btn.ui-input-btn.ui-corner-all.ui-shadow").css(style);
"#slider").css("background-color", "#FDEB9C");
"#lableTip").text("Slide to confirm I am human!");
            }
        }
</script>

效果实现如下。