492 lines
18 KiB
JavaScript
492 lines
18 KiB
JavaScript
import React, { Fragment, useEffect, useRef, useState } from 'react';
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import { getUploadActionUrl, getUrl } from 'educoder';
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import ResizeObserver from 'resize-observer-polyfill';
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import { getImageUrl } from 'educoder';
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import axios from 'axios';
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import '../../courses/css/Courses.css';
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import './css/TPMchallengesnew.css';
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import 'codemirror/lib/codemirror.css';
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import './css/newquestion.css';
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const $ = window.$
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const mdIcons = ["bold", "italic", "|", "list-ul", "list-ol", "|", "code", "code-block", "link", "|", "inline-latex", "latex", '|', "image", "table", '|', "line-break", "watch", "clear"];
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const NULL_CH = '▁';
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function md_add_data(k, mdu, d) {
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window.sessionStorage.setItem(k + mdu, d);
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}
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// 清空保存的数据
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function md_clear_data(k, mdu, id) {
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window.sessionStorage.removeItem(k + mdu);
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var id1 = "#e_tip_" + id;
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var id2 = "#e_tips_" + id;
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if (k == 'content') {
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$(id2).html(" ");
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} else {
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$(id1).html(" ");
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}
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}
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window.md_clear_data = md_clear_data
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function md_rec_data(k, mdu, id) {
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if (window.sessionStorage.getItem(k + mdu) !== null) {
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var editor = $("#e_tips_" + id).data('editor');
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editor.setValue(window.sessionStorage.getItem(k + mdu));
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// /shixuns/b5hjq9zm/challenges/3977/tab=3 setValue可能导致editor样式问题
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md_clear_data(k, mdu, id);
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}
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}
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window.md_rec_data = md_rec_data;
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function md_elocalStorage(editor, mdu, id) {
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let oc = window.sessionStorage.getItem('content' + mdu)
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if (oc !== null && oc !== editor.getValue()) {
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$("#e_tips_" + id).data('editor', editor);
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let h = '您上次有已保存的数据，是否<a style="cursor: pointer;" class="link-color-blue" onclick="md_rec_data(\'content\',\'' + mdu + '\',\'' + id + '\')">恢复</a> ? / <a style="cursor: pointer;" class="link-color-blue" onclick="md_clear_data(\'content\',\'' + mdu + '\',\'' + id + '\')">不恢复</a>';
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$("#e_tips_" + id).html(h)
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}
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let tid = setInterval(function () {
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let d = new Date();
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let h = d.getHours();
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let m = d.getMinutes();
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let s = d.getSeconds();
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h = h < 10 ? '0' + h : h;
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m = m < 10 ? '0' + m : m;
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s = s < 10 ? '0' + s : s;
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if (editor.getValue().trim() !== "") {
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md_add_data("content", mdu, editor.getValue());
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let id2 = "#e_tips_" + id;
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let textStart = " 数据已于 ";
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let text = textStart + h + ':' + m + ':' + s + " 保存 ";
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// 占位符
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let oldHtml = $(id2).html();
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if (oldHtml && oldHtml !== ' ' && oldHtml.startsWith(textStart) === false) {
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$(id2).html(oldHtml.split(' (')[0] + ` (${text})`);
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} else {
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$(id2).html(text);
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}
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}
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}, 10000)
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return tid
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}
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export default ({ mdID, onChange, onCMBeforeChange, onCMBlur, error = false, className = '', noStorage = false, imageExpand = true, placeholder = '', width = '100%', height = 400, initValue = '', emoji, watch, showNullButton = false, showResizeBar = false, startInit = true , forMember = true , isCanAtme = false ,changeAtWhoLoginList }) => {
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const editorEl = useRef();
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const resizeBarEl = useRef();
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const [editorInstance, setEditorInstance] = useState();
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const [atWhoVisible, setAtWhoVisible] = useState(false);
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const [atWhoLoginListState, setAtWhoLoginListState] = useState([]);
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const [users, setUsers] = useState([]);
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const atWhoLoginList = useRef([]);
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const containerId = `mdEditor_${mdID}`;
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const editorBodyId = `mdEditors_${mdID}`;
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const tipId = `e_tips_mdEditor_${mdID}`;
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useEffect(()=>{
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isCanAtme && axios.get('/users/list.json',{
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params: {
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search: 'admin',
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},
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}).then(response=>{
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if(response && response.status === 200){
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setUsers(response.data.users);
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}
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})
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},[])
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function onLayout() {
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let ro;
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if (editorEl.current) {
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ro = new ResizeObserver(entries => {
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for (let entry of entries) {
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if (entry.target.offsetHeight > 0 || entry.target.offsetWidth > 0) {
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editorInstance.resize();
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editorInstance.cm.refresh();
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editorInstance.cm.focus();
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}
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}
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})
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ro.observe(editorEl.current);
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}
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return ro;
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}
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function selectAtWho(username){
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setAtWhoVisible(false);
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const cm = editorInstance.cm;
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//获取鼠标所在行的行数和ch
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const cursor = cm.doc.getCursor();
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const line = cursor.line;//行
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const ch = cursor.ch;//列
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//替换最后的内容
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// cm.getLine(line).endsWith("@") ? cm.replaceRange(username+" ",{line,ch},{line,ch}) : cm.replaceRange("@"+username+" ",{line,ch},{line,ch})
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cm.replaceRange(username+" ",{line,ch},{line,ch});
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//鼠标聚焦
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cm.focus();
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//将此user的login存储到atWhoLoginList集合中
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const list = new Set(atWhoLoginList.current);
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users.map((item)=>{
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item.username === username && list.add(item.login);
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})
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atWhoLoginList.current = Array.from(list);
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setAtWhoLoginListState(Array.from(list));
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}
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function onMouseOver(key){
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document.getElementsByClassName("at_who active")[0].className="at_who";
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document.getElementsByClassName("at_who")[key].className="at_who active";
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}
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//markdown编辑器中输入的键盘监听事件
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function mdKeyDown(){
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document.onkeydown = e=>{
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console.log("markdown",atWhoVisible);
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if (e.key === "@") {
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// 输入@键后在对应的位置显示可选的项目成员
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setAtWhoVisible(true);
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//获取光标位置
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const cssStyle = document.getElementsByClassName("CodeMirror cm-s-default CodeMirror-wrap")[0].firstChild.style;
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//设置弹框位置
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document.getElementById("at_who_list").style.top = (parseInt(cssStyle.getPropertyValue("top").replace("px",""))+60)+"px";
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document.getElementById("at_who_list").style.left = (parseInt(cssStyle.getPropertyValue("left").replace("px",""))+20)+"px";
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//将第一个用户默认选中
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const at_who_divs = document.getElementsByClassName("at_who");
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at_who_divs[0].className = "at_who active";
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} else {
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setAtWhoVisible(false);
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}
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//处理本来@了某人 -> 删掉 -> 撤回 的情况
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if(e.code === "KeyZ" && users.length != 0){
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const codemirror = editorInstance.cm;
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let value = codemirror.getValue();
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//处理初始内容就自带@谁的情况
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if(initValue){
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const del = [];
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users.map(item=>{
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if(initValue.indexOf(item.username)!=-1 && initValue.charAt(initValue.indexOf(item.username)-1) === "@" && initValue.indexOf(`@${item.username}`)===value.indexOf(`@${item.username}`)){
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//初始内容中有符合@+名字的格式并且当前内容未删除初始内容
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del[del.length] = `@${item.username}`;
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}
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})
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del.length!=0 && del.map(str=>{
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value = value.replace(str,"");
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})
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}
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//判断value是否包含@符号
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value.indexOf("@") != -1 && users.map(item =>{
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if(value.indexOf(item.username)!=-1 && value.charAt(value.indexOf(item.username)-1) ==="@"){
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//将此user的login存储到atWhoLoginList集合中
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const list = new Set(atWhoLoginList.current);
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list.add(item.login);
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atWhoLoginList.current = Array.from(list);
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setAtWhoLoginListState(Array.from(list));
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}
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})
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}
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}
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}
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//弹出可选@用户列表之后的键盘监听事件
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function atWhoKeyDown(){
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//监听上下和enter键
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document.onkeydown = (e) =>{
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console.log("atwho列表",atWhoVisible);
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const atWhoListDiv = document.getElementById("at_who_list");
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const atWhoDivs = document.getElementsByClassName("at_who");
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let index;
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for(let i = 0; i<atWhoDivs.length;i++){
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atWhoDivs[i].className === "at_who active" && (index = i);
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}
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if(e.key === "ArrowUp" && index > 0){
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// index >=4 && (atWhoListDiv.scrollTop -=40)
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atWhoListDiv.scrollTop -= 40;
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atWhoDivs[index].className = "at_who";
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atWhoDivs[index-1].className = "at_who active";
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}
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if(e.key === "ArrowDown" && index < atWhoDivs.length-1){
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// index >=3 && (atWhoListDiv.scrollTop +=40)
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atWhoListDiv.scrollTop += 40;
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atWhoDivs[index].className = "at_who";
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atWhoDivs[index+1].className = "at_who active";
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}
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if(e.key === "Enter"){
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//阻止默认事件
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e.preventDefault();
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//找到classname为at_who active的div，执行click事件
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document.getElementsByClassName("at_who active")[0].click();
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}
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}
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}
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useEffect(()=>{
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console.log('@谁列表发生变化,atWhoLoginList.current：',atWhoLoginList.current,'atWhoLoginListState: ',atWhoLoginListState);
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changeAtWhoLoginList && changeAtWhoLoginList(atWhoLoginListState);
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},[atWhoLoginListState])
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const atWhoList = (
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<div className="at_who_list" id="at_who_list" >
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{users && users.map((item,key)=>{
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return(
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<div key={key} className="at_who" onClick={()=>{selectAtWho(item.username)}} onMouseOver={()=>{onMouseOver(key)}}>
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{item.image_url && <img src={getImageUrl(item.image_url)}></img>}
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<span>{item.username}</span>
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</div>
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)
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})}
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</div>
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)
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useEffect(()=>{
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document.addEventListener('click',()=>{setAtWhoVisible(false)});
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})
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useEffect(()=>{
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//当atWhoVisible为true的时候，失焦，监听上下和enter键
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if(atWhoVisible){
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document.activeElement.id !== "blur_atWho" && document.getElementById("blur_atWho").focus();
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document.addEventListener("keydown",atWhoKeyDown());
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}
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},[atWhoVisible])
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useEffect(() => {
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if (editorInstance) {
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return
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}
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if (!startInit) { return }
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const editor_instance = window.editormd(containerId, {
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width,
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height,
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path: getUrl("/editormd/lib/"),
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markdown: initValue,
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syncScrolling: "single",
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tex: true,
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tocm: true,
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emoji: !!emoji,
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taskList: true,
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codeFold: true,
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searchReplace: true,
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htmlDecode: "style,script,iframe",
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sequenceDiagram: true,
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autoFocus: false,
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watch: watch === undefined ? true : watch,
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saveHTMLToTextarea: true,
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dialogMaskOpacity: 0.6,
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placeholder: placeholder,
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imageUpload: true,
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imageFormats: ["jpg", "jpeg", "gif", "png", "bmp", "webp", "JPG", "JPEG", "GIF", "PNG", "BMP", "WEBP"],
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imageUploadURL: getUploadActionUrl(),
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toolbarIcons: function () {
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return showNullButton ? [...mdIcons, 'null-button'] : mdIcons
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},
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toolbarIconsClass: {
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"line-break": "fa-minus",
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"fullScreen":"iconfont icon-fangdaicon font-14"
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},
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toolbarCustomIcons: {
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"inline-latex": "<a title='行内公式' class='latex' ><i name='inline-latex' class='fa iconfont icon-hangneigongshi font-14'></i></a>",
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"latex": "<a title='多行公式' class='latex' ><i name='latex' class='fa iconfont icon-duohanggongshi font-16'></i></a>",
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"null-button": "<a class='pr' title='增加填空'><i class='border-left'><span></span></i><span name='null-button' class='fa fillTip'>点击插入填空项</span><i class='iconfont fa icon-edit font-16' name='null-button'></i></a>",
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},
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toolbarHandlers: {
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"line-break": function (cm, icon, cursor, selection) {
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cm.replaceSelection("<br/>")
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},
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"null-button": function (cm, icon, cursor, selection) {
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if (selection === "") {
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cm.setCursor(cursor.line, cursor.ch + 1)
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}
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cm.replaceSelection(NULL_CH)
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},
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"fullScreen":function(cm,icon,cursor,selection){
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icon.addClass("none");
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console.log(cm,icon)
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},
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"inline-latex": function (cm, icon, cursor, selection) {
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cm.replaceSelection("$$" + selection + "$$");
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cm.setCursor(cursor.line, cursor.ch + 2);
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cm.focus()
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},
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"latex": function (cm, icon, cursor, selection) {
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cm.replaceSelection("```latex\n\n" + selection + "```");
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cm.setCursor(cursor.line + 1, 0);
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cm.focus()
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},
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},
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lang: {
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toolbar: {
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"latex": "多行公式",
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"line-break": "换行",
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"fullScreen":"开启全屏"
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}
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},
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onload: function () {
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setEditorInstance(this)
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}
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})
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}, [containerId, editorInstance, startInit])
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const cmEl = editorInstance && editorInstance.cm
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useEffect(() => {
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if (cmEl) {
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let tid = null
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let ro
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if (onCMBlur) {
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editorInstance.cm.on('blur', () => { onCMBlur(editorInstance.getValue()) })
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}
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if (onCMBeforeChange) {
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editorInstance.cm.on('beforeChange', (cm, change) => {
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onCMBeforeChange(cm, change)
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})
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}
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if (!noStorage) {
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tid = md_elocalStorage(editorInstance, `MDEditor__${containerId}`, containerId)
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}
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//isCanAtme:只有issue和合并请求以及评论部分可以@他人操作
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//当光标或选中内容时触发绑定@事件
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isCanAtme && editorInstance.cm.on("focus", () => {
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document.addEventListener("keydown", mdKeyDown());
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});
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isCanAtme && editorInstance.cm.on("blur", () => {
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document.removeEventListener("keydown",mdKeyDown());
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});
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editorInstance.cm.on("change", (cm) => {
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onChange && onChange(cm.getValue());
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if(atWhoLoginList.current.length != 0){
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const codemirror = editorInstance.cm;
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let value = codemirror.getValue();
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//处理初始内容就自带@谁的情况
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if(initValue){
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const del = [];
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users.map(item=>{
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if(initValue.indexOf(item.username)!=-1 && initValue.charAt(initValue.indexOf(item.username)-1) === "@" && initValue.indexOf(`@${item.username}`)===value.indexOf(`@${item.username}`)){
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//初始内容中有符合@+名字的格式并且当前内容未删除初始内容
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del[del.length] = `@${item.username}`;
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}
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})
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del.length!=0 && del.map(str=>{
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value = value.replace(str,"");
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})
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}
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//以username为主键，login为value的map集合
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let atWhoMap = new Map();
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Array.from(atWhoLoginList.current).map(item=>{
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users.map(i=>{
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if(i.login === item){
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atWhoMap.set(i.username,i.login);
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}
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})
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});
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if(value.indexOf("@") === -1){
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//已经有要@的列表，但是没有@符号 -> 清空@集合
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atWhoLoginList.current = [];
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setAtWhoLoginListState([]);
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return;
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}
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const cursor = codemirror.doc.getCursor();
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const line = cursor.line;
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const ch = cursor.ch;
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const lineContent = codemirror.getLine(line);
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if(lineContent && lineContent.indexOf("@") != -1){//此行有@谁
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Array.from(atWhoMap.keys()).map(username=>{
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//判断lineContent是不是以列表中的某个username结尾
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if(lineContent.endsWith(username)){
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codemirror.setSelection({line,ch:ch-username.length-1},{line,ch});
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return;
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}
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//处理有名字但是无@符号，有@但是名字对不上的情况
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const a = value.indexOf(username)===-1;
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const b = value.charAt(value.indexOf(username)-1) !="@";
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if(value.indexOf(username)===-1 || value.charAt(value.indexOf(username)-1) !="@"){
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//符合任意一种情况->踢掉这个人 不给他发消息
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const list = new Set(atWhoLoginList.current);
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list.delete(atWhoMap.get(username));
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atWhoLoginList.current = Array.from(list);
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setAtWhoLoginListState(Array.from(list));
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}
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})
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}
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}
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});
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ro = onLayout()
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return () => {
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if (!noStorage) {
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clearInterval(tid)
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}
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if (ro) {
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ro.unobserve(editorEl.current)
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}
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}
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}
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}, [cmEl])
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useEffect(() => {
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if (editorInstance && initValue !== undefined) {
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if (initValue !== null && initValue !== editorInstance.getValue()) {
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editorInstance.setValue(initValue.toString())
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}
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}
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}, [editorInstance, initValue, containerId])
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useEffect(() => {
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if (resizeBarEl.current) {
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let el = resizeBarEl.current
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let dragging = false
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let startY = 0
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function onMouseDown(e) {
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dragging = true
|
||
startY = e.pageY
|
||
}
|
||
function onMouseUp() {
|
||
dragging = false
|
||
}
|
||
function onMouseMove(e) {
|
||
if (dragging) {
|
||
let delta = e.pageY - startY
|
||
if (delta < 0) {
|
||
delta = 0
|
||
}
|
||
if (delta > 300) {
|
||
delta = 300
|
||
}
|
||
let resizeH = height + delta + 'px'
|
||
editorInstance.resize('', resizeH)
|
||
}
|
||
}
|
||
el.addEventListener('mousedown', onMouseDown)
|
||
document.addEventListener('mousemove', onMouseMove)
|
||
document.addEventListener('mouseup', onMouseUp)
|
||
return () => {
|
||
el.removeEventListener('mousedown', onMouseDown)
|
||
document.removeEventListener('mousemove', onMouseMove)
|
||
document.removeEventListener('mouseup', onMouseUp)
|
||
}
|
||
}
|
||
}, [
|
||
editorInstance, resizeBarEl
|
||
])
|
||
return (
|
||
<Fragment>
|
||
<div ref={editorEl} className={`df ${className} ${imageExpand && 'editormd-image-click-expand'} `}>
|
||
<div className={`edu-back-greyf5 radius4 editormd ${error ? 'error' : ''}`} id={containerId} >
|
||
<textarea style={{ display: 'none' }} id={editorBodyId} name="content"></textarea>
|
||
<div className="CodeMirror cm-s-defualt"></div>
|
||
<input id ="blur_atWho" className="blur_atWho"/>
|
||
{atWhoVisible && atWhoList}
|
||
</div>
|
||
</div>
|
||
{showResizeBar ? <a ref={resizeBarEl} className='editor-resize'></a> : null}
|
||
<div className={"fr rememberTip"}>
|
||
{noStorage === true ? null : <div id={tipId} className="edu-txt-right color-grey-cd font-12"></div>}
|
||
</div>
|
||
</Fragment>
|
||
)
|
||
} |