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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0" />
<title>网页留言板</title>
<style>
html,
body {
height: 100%;
margin: 0;
padding: 5px;
box-sizing: border-box;
}
textarea {
background-color: #333;
border-radius: 10px;
width: 80%;
height: 80%;
display: block;
margin: 0 auto;
color: #fff;
padding: 20px;
font-size: 16px;
box-sizing: border-box;
}
textarea::-webkit-input-placeholder {
color: #eee;
}
.action {
width: 80%;
margin: 10px auto;
text-align: right;
}
.btn {
padding: 0 10px;
height: 38px;
line-height: 38px;
min-width: 100px;
text-align: center;
border: none;
border-radius: 4px;
user-select: none;
-webkit-user-select:none;
-moz-user-select:none;
-o-user-select:none;
}
.btn-save {
background-color: #409eff;
color: #fff;
}
.btn-del {
background-color: #f56c6c;
color: #fff;
}
.btn-copy {
background-color: #409eff;
color: #fff;
height: 20px;
line-height: 20px;
width: 50px;
font-size: 12px;
margin-left: 5px;
}
.copy-box {
display: flex;
margin-top: 5px;
}
.copy-input {
flex: 1;
border: none;
padding: 0 10px;
border: 1px solid #ddd;
}
.operation-btn {
display: flex;
align-items: center;
margin-top: 20px;
justify-content: space-between;
}
.time-select {
flex: 1;
height: 38px;
margin-right: 5px;
max-width: 220px;
}
.message-box {
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%);
background-color: #fff;
padding: 5px;
max-width: 250px;
border-radius: 4px;
z-index: 9999;
display: none;
}
@media (max-width: 900px) {
textarea {
width: 95%;
}
.action {
width: 95%;
}
}
</style>
</head>
<body>
<textarea id="text-box" class="" placeholder="请留言"> </textarea>
<div class="action copy-box">
<input class="copy-input" readonly value="" />
<button class="btn btn-copy">分享留言</button>
</div>
<div class="action operation-btn">
<select class="time-select">
<option value="1">5分钟销毁</option>
<option value="2">15分钟销毁</option>
<option value="3">1小时销毁</option>
<option value="4">24小时销毁</option>
<option value="5">7天后销毁</option>
<option value="6">30天后销毁</option>
<option value="7">一年后销毁</option>
</select>
<div onselectstart="return false;">
<button class="btn btn-del">清空/删除</button>
<button class="btn btn-save">留言</button>
</div>
</div>
<!-- 错误信息 -->
<div class="message-box"></div>
<script src="/clipboard.min.js"></script>
<script>
const baseUrl = window.location.origin
let btnSave = document.querySelector('.btn-save')
let btnDel = document.querySelector('.btn-del')
let textBox = document.querySelector('#text-box')
let timeSelect = document.querySelector('.time-select')
let copyInput = document.querySelector('.copy-input')
let btnCopy = document.querySelector('.btn-copy')
let messageBox = document.querySelector('.message-box')
let timerid = null
let needCopy = false
function showMessage(text, time = 1500) {
if(timerid){
clearTimeout(timerid)
timerid = null
}
messageBox.innerHTML = text
messageBox.style.display = 'block'
timerid = setTimeout(() => {
messageBox.style.display = 'none'
}, time)
}
function getValue(reload=false) {
let key = this.getQueryByKey(window.location.href, 'k')
if (!key) {
key = getQueryByKey(window.location.href, 'key')
}
if(!key){
textBox.value = ""
return
}
fetch(baseUrl + '/get?k=' + encodeURIComponent(key), {
method: 'GET',
}).then(function (res) {
return res.text()
}).then((val) => {
// 赋值
if(!val){
if(!reload){
getValue(true)
}else{
textBox.value = val
// history.replaceState('', '', baseUrl)
}
return
}
textBox.value = val
// 赋值内容
let shareUrl = baseUrl + '/?k=' + encodeURIComponent(key)
let is_block_key = getQueryByKey(window.location.href, 'block')
if (!is_block_key){
is_block_key = getQueryByKey(window.location.href, 'b')
if (is_block_key){
shareUrl = shareUrl + "&b=" + is_block_key
}
}
copyInput.value = shareUrl
// 读取消息有效时间
fetch(baseUrl + '/get?k=time_index_' + encodeURIComponent(key), {
method: 'GET',
}).then(function (res) {
return res.text()
}).then((val) => {
if(val){
timeSelect.selectedIndex = val
}
})
})
}
function getQueryByKey(url, name) {
if(!url){
return ""
}
var paths=url.split('?')
if(paths.length < 2){
return ""
}
var str = paths[1]
var keys = str.split('&')
var obj = {}
keys.forEach((item, idx, data) => {
var arr = item.split('=')
obj[arr[0]] = decodeURI(arr[1])
})
return obj[name]
}
function getTime() {
var index = timeSelect.selectedIndex
let time = timeSelect.options[index].value
switch (time) {
case '1':
return 5 * 60
case '2':
return 15 * 60
case '3':
return 1 * 60 * 60
case '4':
return 24 * 60 * 60
case '5':
return 7 * 24 * 60 * 60
case '6':
return 30 * 24 * 60 * 60
case '7':
return 12 * 30 * 24 * 60 * 60
default:
return 60 * 60
}
}
function getRandom(m) {
// 随机数字
// m = m > 16 ? 16 : m;
// var num = Math.random().toString();
// return num.substring(num.length - m);
// 随机数字+小写字母
// let letter = ["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"]
var data = [
'0',
'1',
'2',
'3',
'4',
'5',
'6',
'7',
'8',
'9',
'a',
'b',
'c',
'd',
'e',
'f',
'g',
'h',
'i',
'j',
'k',
'l',
'm',
'n',
'o',
'p',
'q',
'r',
's',
't',
'u',
'v',
'w',
'x',
'y',
'z',
]
m = m > 16 ? 16 : m
var str = ''
let endnum = data.length - 1
let startnum = 0
for (var i = 0; i < m; i++) {
var ram = Math.floor(
Math.random() * (endnum - startnum + 1 + startnum)
)
str += data[ram]
}
return str.toUpperCase()
}
btnSave.addEventListener('click', function () {
let text = textBox.value
let is_block_key = getQueryByKey(window.location.href, 'block')
if (!is_block_key) {
is_block_key = getQueryByKey(window.location.href, 'b')
}
let key;
if (is_block_key == 'true'){
key = getQueryByKey(window.location.href, 'key')
if (!key){
key = getQueryByKey(window.location.href, 'k')
}
}
if (!key){
key = getRandom(8)
}
let shareUrl = baseUrl + '/?k=' + encodeURIComponent(key)
if (is_block_key){
shareUrl = shareUrl + '&b=' + encodeURIComponent(is_block_key)
}
copyInput.value = shareUrl
history.replaceState('', '', shareUrl)
fetch(baseUrl + '/set', {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({
't': getTime(),
'k': key,
'v': text
})
}).then(function () {
needCopy = true
showMessage('留言成功，请分享链接')
})
fetch(baseUrl + '/set', {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({
't': getTime(),
'k': 'time_index_'+key,
'v': ''+timeSelect.selectedIndex
})})
});
// var saveClipboard = new ClipboardJS('.btn-save', {
// text: function() {
// return shareUrl;
// }
// });
btnDel.addEventListener('click', function () {
textBox.value = ''
showMessage('清空成功，长按可删除')
})
var copyClipboard = new ClipboardJS('.btn-copy', {
text: function() {
return copyInput.value;
}
});
copyClipboard.on('success', function(e) {
showMessage('复制成功，请分享链接')
});
timeSelect.addEventListener('change', function () {
localStorage.setItem('timeselection', timeSelect.selectedIndex)
})
var lastTouchEnd=0;
var btntouchtime=0;
function touchstart(){
if(event.touches.length>1){
event.preventDefault();
}
}
function touchend(){
var now=(new Date()).getTime();
if(now-lastTouchEnd<=300){
event.preventDefault();
}
lastTouchEnd=now;
}
function btntouchstart(){
var now=(new Date()).getTime();
if(event.touches.length>1){
event.preventDefault();
}
if(now-btntouchtime<=300){
event.preventDefault();
}
btntouchtime = now
}
//function btntouchend(e){
// var now=(new Date()).getTime();
// if(now-btntouchtime<=300){
// event.preventDefault();
// }
//}
var timer=null;
var touchtime=null;
var touchx=0; var touchy=0;
var touchstartHander=function(event){
// event.preventDefault();
var now=(new Date()).getTime();
touchtime = now
timer=setTimeout(LongPress,500);
touchx=0; touchy=0;
}
var touchmoveHander=function(event){
if(touchx!=0 && touchy!=0){
event.preventDefault();
clearTimeout(timer);
timer=null;
}
touchx = event.changedTouches[0].pageX;
touchy = event.changedTouches[0].pageY;
}
var touchendHander=function(event){
var now=(new Date()).getTime();
clearTimeout(timer);
timer=null;
if(now-touchtime>=500){
event.preventDefault();
event.target.disabled = true;
setTimeout(function(){
event.target.disabled = false;
},100);
}
return false;
}
function LongPress(){
let key = getQueryByKey(copyInput.value, 'k')
if (!key) {
key = getQueryByKey(copyInput.value, 'key')
}
var supportsVibrate = "vibrate" in window.navigator;
if (supportsVibrate) {
window.navigator.vibrate(100);
}
fetch(baseUrl + '/del?k=' + encodeURIComponent(key), {
method: 'GET',
}).then(function () {
copyInput.value = ''
textBox.value = ''
showMessage('删除成功')
})
}
window.onload = function () {
getValue()
timeSelect.selectedIndex = localStorage.getItem('timeselection') || 6
// 其他功能
document.addEventListener('touchstart',touchstart);
document.addEventListener('touchend',touchend,false);
btnCopy.addEventListener('touchstart',btntouchstart);
// btnCopy.addEventListener('touchend',btntouchend,false);
btnDel.addEventListener('touchstart',btntouchstart);
// btnDel.addEventListener('touchend',btntouchend,false);
btnSave.addEventListener('touchstart',btntouchstart);
// btnSave.addEventListener('touchend',btntouchend,false);
// 长按删除
btnDel.addEventListener("touchstart",touchstartHander,false);
btnDel.addEventListener("touchmove",touchmoveHander,false);
btnDel.addEventListener("touchend",touchendHander,false);
btnDel.addEventListener("mousedown",touchstartHander,false);
btnDel.addEventListener("mousemove",touchmoveHander,false);
btnDel.addEventListener("mouseup",touchendHander,false);
document.addEventListener('gesturestart', function (event) {
event.preventDefault();
});
}
function copyText() {
if(needCopy){
needCopy = false
if (navigator.clipboard) {
navigator.clipboard.writeText(copyInput.value)
} else {
// 选中
copyInput.select()
// 复制
document.execCommand('copy', true)
}
}
}
// document.body.addEventListener('mouseup',copyText, true);
</script>
</body>
</html>
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