Save unposted text in the reply area before changing pages
当前为
// ==UserScript==
// @name Save unposted text in reply area
// @author Joshh
// @namespace https://tljoshh.com
// @version 0.1
// @description Save unposted text in the reply area before changing pages
// @match *://*.websight.blue/thread/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=websight.blue
// @license MIT
// ==/UserScript==
(function() {
'use strict';
const replyForm = document.querySelector('#reply-form');
const replyBox = document.querySelector('#reply-content');
const localStorageKey = 'unpostedMessages';
const setMessage = (threadId, text) => {
const messages = localStorage.getItem(localStorageKey);
if (messages === null) {
const obj = {};
obj[threadId] = text;
localStorage.setItem(localStorageKey, JSON.stringify(obj));
}
else {
const obj = JSON.parse(messages);
obj[threadId] = text;
localStorage.setItem(localStorageKey, JSON.stringify(obj));
}
}
const getMessage = threadId => {
const messages = localStorage.getItem(localStorageKey);
let message = null;
if (messages !== null) {
const obj = JSON.parse(messages);
message = obj[threadId];
}
return message;
}
const removeMessage = (threadId) => {
const messages = localStorage.getItem(localStorageKey);
if(messages !== null) {
const obj = JSON.parse(messages);
console.log(obj);
delete obj[threadId];
console.log(obj);
localStorage.setItem(localStorageKey, JSON.stringify(obj));
}
}
const hasMessage = threadId => {
const message = getMessage(threadId);
let messageExists = false;
if (typeof message !== 'undefined') {
messageExists = true;
}
return messageExists;
}
const hasMessages = () => {
const messages = localStorage.getItem(localStorageKey);
let messagesExist = false;
if(messages !== null) {
const obj = JSON.parse(messages);
if(Object.keys(obj).length) {
messagesExist = true;
}
}
return messagesExist;
}
const getThreadId = () => {
const regex = new RegExp(/https:\/\/(.*)\.websight\.blue\/thread\/([\d]+)\/(.*)/);
const matchGroups = window.location.href.match(regex);
return matchGroups[2];
}
const loadMessage = () => {
replyBox.value = "{[TamperMonkey] Checking for previously unposted message...}";
const threadId = getThreadId();
const messageExists = hasMessage(threadId);
if(messageExists) {
const message = getMessage(threadId);
replyBox.value = message;
} else {
replyBox.value = "";
}
}
// Check for an unposted message in the reply box and save it if one exists
window.addEventListener('beforeunload', (event) => {
const value = replyBox.value;
const notEmpty = value !== "";
const threadId = getThreadId();
if(notEmpty) {
// Add the unposted message
const threadId = getThreadId();
setMessage(threadId, value);
} else if(!notEmpty && hasMessage(threadId)) {
// If there was a saved unposted message and it's been cleared from reply box, remove it from storage
removeMessage(threadId);
}
});
// Remove any previously saved messages in the thread when the reply box is submitted
replyForm.addEventListener('submit', (event) => {
const threadId = getThreadId();
const hasMessage = hasMessage(threadId);
if(hasMessage) {
removeMessage(threadId);
}
});
// Check and load any previously saved messages
loadMessage();
})();