JavaScript+html實現前端頁面滑動驗證（2）
本文實例為大傢分享瞭炫酷的前端頁面滑動驗證的具體代碼，供大傢參考，具體內容如下
分享炫酷的前端頁面滑動驗證
前面已經發過一種，這裡再發一種，隻是特效不一樣
還是直接上代碼：
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
<style>
/* 滑動控件容器,灰色背景 */
#dragContainer {
position: relative;
display: inline-block;
background: #e8e8e8;
width: 300px;
height: 33px;
border: 2px solid #e8e8e8;
}
/* 滑塊左邊部分,綠色背景 */
#dragBg {
position: absolute;
background-color: #7ac23c;
width: 0px;
height: 100%;
}
/* 滑動驗證容器文本 */
#dragText {
position: absolute;
width: 100%;
height: 100%;
/* 文字水平居中 */
text-align: center;
/* 文字垂直居中,這裡不能用百分比,因為百分比是相對原始line-height的,而非div高度 */
line-height: 33px;
/* 文本不允許選中 */
user-select: none;
-webkit-user-select: none;
}
/* 滑塊 */
#dragHandler {
position: absolute;
width: 40px;
height: 100%;
cursor: move;
}
/* 滑塊初始背景 */
.dragHandlerBg {
background: #fff no-repeat center url("data:image/png;base64,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");
}
/* 驗證成功時的滑塊背景 有√*/
.dragHandlerOkBg {
background: #fff no-repeat center url("data:image/png;base64,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");
}
</style>
</head>
<body>
<div id="dragContainer"><!-- 容器初始背景 -->
<div id="dragBg"></div><!-- 綠色背景 -->
<div id="dragText"></div><!-- 滑動容器文本 -->
<div id="dragHandler" class="dragHandlerBg"></div>
</div> <!-- 滑塊 滑塊初始背景 -->
</body>
<script>
//加載（事件會在頁面加載完成後觸發）
window.onload = function() {
//獲取滑動控件容器,灰色背景
var dragContainer = document.getElementById("dragContainer");
//獲取滑塊左邊部分,綠色背景
var dragBg = document.getElementById("dragBg");
//獲取滑動驗證容器文本
var dragText = document.getElementById("dragText");
//獲取滑塊
var dragHandler = document.getElementById("dragHandler");
//滑塊的最大偏移量 = 滑動驗證容器文本長度 - 滑塊長度
var maxHandlerOffset = dragContainer.clientWidth - dragHandler.clientWidth;
//是否驗證成功的標記
var isVertifySucc = false;
initDrag();
function initDrag() {
//在滑動驗證容器文本寫入“拖動滑塊驗證”
dragText.textContent = "拖動滑塊驗證";
//給滑塊添加鼠標按下監聽
dragHandler.addEventListener("mousedown", onDragHandlerMouseDown);
}
//選中滑塊
function onDragHandlerMouseDown() {
//鼠標移動監聽
document.addEventListener("mousemove", onDragHandlerMouseMove);
//鼠標松開監聽
document.addEventListener("mouseup", onDragHandlerMouseUp);
}
//滑塊移動
function onDragHandlerMouseMove() {
/*
html元素不存在width屬性,隻有clientWidth
offsetX是相對當前元素的,clientX和pageX是相對其父元素的
*/
//滑塊移動量
var left = event.clientX - dragHandler.clientWidth / 2;
//
if(left < 0) {
left = 0;
//如果滑塊移動量 > 滑塊的最大偏移量 ，則調用驗證成功函數
} else if(left > maxHandlerOffset) {
left = maxHandlerOffset;
verifySucc();
}
//滑塊移動量
dragHandler.style.left = left + "px";
//綠色背景的長度
dragBg.style.width = dragHandler.style.left;
}
//松開滑塊函數
function onDragHandlerMouseUp() {
//移除鼠標移動監聽
document.removeEventListener("mousemove", onDragHandlerMouseMove);
//移除鼠標松開監聽
document.removeEventListener("mouseup", onDragHandlerMouseUp);
//初始化滑塊移動量
dragHandler.style.left = 0;
//初始化綠色背景
dragBg.style.width = 0;
}
//驗證成功
function verifySucc() {
//成功標記，不可回彈
isVertifySucc = false;
//容器文本的文字改為白色“驗證通過”字體
dragText.textContent = "驗證通過";
dragText.style.color = "white";
//驗證通過的滑塊背景
dragHandler.setAttribute("class", "dragHandlerOkBg");
//移除鼠標按下監聽
dragHandler.removeEventListener("mousedown", onDragHandlerMouseDown);
//移除 鼠標移動監聽
document.removeEventListener("mousemove", onDragHandlerMouseMove);
//移除鼠標松開監聽
document.removeEventListener("mouseup", onDragHandlerMouseUp);
// 匹配成功以後寫入你要跳轉的頁面
//window.location.href="成功頁面.html" rel="external nofollow" ;
};
}
</script>
</html>
效果如下
以上就是本文的全部內容，希望對大傢的學習有所幫助，也希望大傢多多支持WalkonNet。