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import React, { Component } from 'react';
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import { getUploadActionUrl, getUrl } from 'educoder';
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import '../../courses/css/Courses.css'
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import './css/TPMchallengesnew.css';
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require('codemirror/lib/codemirror.css');
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let path = '/editormd/lib/'
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path = getUrl("/editormd/lib/")
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const $ = window.$;
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// 保存数据
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function md_add_data(k, mdu, d) {
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window.sessionStorage.setItem(k + mdu, d);
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}
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// 清空保存的数据
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function md_clear_data(k, mdu, id) {
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window.sessionStorage.removeItem(k + mdu);
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var id1 = "#e_tip_" + id;
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var id2 = "#e_tips_" + id;
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if (k == 'content') {
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$(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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// editor 存在了jquery对象上，应用不需要自己写md_rec_data方法了
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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 = $("#e_tips_" + id).data('editor');
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editor.setValue(window.sessionStorage.getItem(k + mdu));
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// debugger;
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// /shixuns/b5hjq9zm/challenges/3977/tab=3 setValue可能导致editor样式问题
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md_clear_data(k, mdu, id);
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}
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}
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window.md_rec_data = md_rec_data;
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function md_elocalStorage(editor, mdu, id) {
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if (window.sessionStorage) {
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var oc = window.sessionStorage.getItem('content' + mdu);
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if (oc !== null && oc != editor.getValue()) {
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console.log("#e_tips_" + id)
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$("#e_tips_" + id).data('editor', editor);
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var 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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setInterval(function () {
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var d = new Date();
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var h = d.getHours();
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var m = d.getMinutes();
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var 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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var id1 = "#e_tip_" + id;
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var id2 = "#e_tips_" + id;
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var textStart = " 数据已于 "
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var text = textStart + h + ':' + m + ':' + s + " 保存 ";
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// 占位符
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var 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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// $(id2).html("");
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}
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}, 10000);
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} else {
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$("#e_tip_" + id).after('您的浏览器不支持localStorage.无法开启自动保存草稿服务,请升级浏览器！');
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}
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}
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function create_editorMD(id, width, high, placeholder, imageUrl, callback, initValue,
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onchange, watch, { noStorage, showNullButton, emoji }, that) {
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// 还是出现了setting只有一份，被共用的问题
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var editorName = window.editormd(id, {
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width: width,
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height: high === undefined ? 400 : high,
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path: getUrl("/editormd/lib/"), // "/editormd/lib/"
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markdown: initValue,
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dialogLockScreen: false,
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watch: watch === undefined ? true : watch,
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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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toolbarIcons: function (mdEditor) {
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let react_id = `react_${mdEditor.id}`;
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const __that = window[react_id]
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// Using "||" set icons align right.
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const icons = ["bold", "italic", "|", "list-ul", "list-ol", "|", "code", "code-block", "link", "|", "testIcon", "testIcon1", '|', "image", "table", '|', "line-break", "watch", "clear"];
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// 试卷处用到的填空题新增按钮
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if (__that.props.showNullButton) {
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icons.push('nullBtton')
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}
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return icons
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},
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toolbarIconsClass: {
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"line-break": "fa-minus"
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},
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toolbarHandlers: {
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/**
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* @param {Object} cm CodeMirror对象
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* @param {Object} icon 图标按钮jQuery元素对象
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* @param {Object} cursor CodeMirror的光标对象，可获取光标所在行和位置
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* @param {String} selection 编辑器选中的文本
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*/
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"line-break": function (cm, icon, cursor, selection) {
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// 如果当前没有选中的文本，将光标移到要输入的位置
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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("<br/>");
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}
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},
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toolbarCustomIcons: {
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testIcon: "<a type=\"inline\" class=\"latex\" ><div class='zbg'></div></a>",
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testIcon1: "<a type=\"latex\" class=\"latex\" ><div class='zbg_latex'></div></a>",
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nullBtton: "<a type=\"nullBtton\" class='pr' title='增加填空'><div class='border-left'><span></span></div><span class='fillTip'>点击插入填空项</span><i class=\"iconfont icon-edit font-16\"></i></a>",
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},
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//这个配置在simple.html中并没有，但是为了能够提交表单，使用这个配置可以让构造出来的HTML代码直接在第二个隐藏的textarea域中，方便post提交表单。
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saveHTMLToTextarea: true,
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// 用于增加自定义工具栏的功能，可以直接插入HTML标签，不使用默认的元素创建图标
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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: imageUrl,//url
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onchange: onchange,
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onload: function () {
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let _id = this.id // 如果要使用this，这里不能使用箭头函数
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let _editorName = this;
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let react_id = `react_${_editorName.id}`;
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const __that = window[react_id]
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$("#" + _id + " [type=\"latex\"]").bind("click", function () {
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_editorName.cm.replaceSelection("```latex");
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_editorName.cm.replaceSelection("\n");
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_editorName.cm.replaceSelection("\n");
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_editorName.cm.replaceSelection("```");
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var __Cursor = _editorName.cm.getDoc().getCursor();
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_editorName.cm.setCursor(__Cursor.line - 1, 0);
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});
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$("#" + _id + " [type=\"inline\"]").bind("click", function () {
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_editorName.cm.replaceSelection("`$$$$`");
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var __Cursor = _editorName.cm.getDoc().getCursor();
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_editorName.cm.setCursor(__Cursor.line, __Cursor.ch - 3);
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_editorName.cm.focus();
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});
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$("[type=\"inline\"]").attr("title", "行内公式");
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$("[type=\"latex\"]").attr("title", "多行公式");
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if (__that.props.showNullButton) {
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const NULL_CH = '▁'
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$("#" + _id + " [type=\"nullBtton\"]").bind("click", function () {
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_editorName.cm.replaceSelection(NULL_CH);
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});
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}
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if (!noStorage == true) {
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md_elocalStorage(_editorName, `MDEditor__${_id}`, _id);
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}
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callback && callback(_editorName)
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}
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});
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return editorName;
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}
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export default class TPMMDEditor extends Component {
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constructor(props) {
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super(props)
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this.state = {
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initValue: ''
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}
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}
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componentDidUpdate(prevProps, prevState) {
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// 不能加，影响了试卷填空题
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// if (this.props.initValue != prevProps.initValue) {
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// this.answers_editormd.setValue(this.props.initValue)
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// }
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}
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// react_mdEditor_
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componentDidMount = () => {
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const { mdID, initValue, placeholder, showNullButton } = this.props;
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let _id = `mdEditor_${mdID}`
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this.contentChanged = false;
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const _placeholder = placeholder || "";
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// amp;
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// 编辑时要传memoId
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const imageUrl = `${getUploadActionUrl()}`;
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// 创建editorMd
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let react_id = `react_${_id}`;
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// 将实例存到了window
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window[react_id] = this
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const answers_editormd = create_editorMD(_id, '100%', this.props.height, _placeholder, imageUrl, (_editorName) => {
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const __editorName = _editorName;
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react_id = `react_${__editorName.id}`;
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const that = window[react_id]
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// 一个延迟的recreate或resize，不加这段代码，md初始化可能会出现样式问题
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setTimeout(() => {
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if (that.props.needRecreate == true) {
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__editorName.recreate() // 注意 必须在setValue之前触发，不然会清空
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} else {
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__editorName.resize()
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}
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console.log('timeout', __editorName.id)
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__editorName.cm && __editorName.cm.refresh()
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}, that.props.refreshTimeout || 500)
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if (this.props.noSetValueOnInit) {
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that.onEditorChange()
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} else {
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if (that.props.initValue != undefined && that.props.initValue != '') {
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__editorName.setValue(that.props.initValue)
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}
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if (that.state.initValue) {
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__editorName.setValue(that.state.initValue)
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}
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}
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__editorName.cm.on("change", (_cm, changeObj) => {
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that.contentChanged = true;
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if (that.state.showError) {
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that.setState({ showError: false })
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}
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that.onEditorChange()
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})
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that.props.onCMBlur && __editorName.cm.on('blur', () => {
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that.props.onCMBlur()
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})
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that.props.onCMBeforeChange && __editorName.cm.on('beforeChange', (cm, change) => {
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that.props.onCMBeforeChange(cm, change)
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})
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that.answers_editormd = __editorName;
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// 这里应该可以去掉了，方便调试加的
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window[__editorName.id + '_'] = __editorName;
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}, initValue, this.onEditorChange, this.props.watch, {
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noStorage: this.props.noStorage,
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showNullButton: this.props.showNullButton,
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emoji: this.props.emoji
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}, this);
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}
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// 用在form里时，validate失败时出现一个红色边框
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showError = () => {
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this.setState({ showError: true })
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}
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onEditorChange = () => {
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if (!this.answers_editormd) return;
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const val = this.answers_editormd.getValue();
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//console.log('onEditorChange', this.props.id, val)
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try {
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this.props.onChange && this.props.onChange(val)
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} catch (e) {
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// http://localhost:3007/courses/1309/common_homeworks/6566/setting
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// 从这个页面，跳转到编辑页面，再在编辑页面点击返回的时候，这里会报错
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console.error('出错')
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console.error(e)
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}
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}
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resize = () => {
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if (!this.answers_editormd) { // 还未初始化
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return;
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}
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this.answers_editormd.resize()
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this.answers_editormd.cm && this.answers_editormd.cm.refresh()
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this.answers_editormd.cm.focus()
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}
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getValue = () => {
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try {
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return this.answers_editormd.getValue()
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} catch (e) {
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return ''
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}
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}
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setValue = (val) => {
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try {
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this.answers_editormd.setValue(val)
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} catch (e) {
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// TODO 这里多实例的时候，前一个实例的state会被后面这个覆盖 参考NewWork.js http://localhost:3007/courses/1309/homework/9300/edit/1
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// 未初始化
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this.setState({ initValue: val })
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}
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}
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render() {
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let {
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showError
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} = this.state;
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let { mdID, className, noStorage, imageExpand } = this.props;
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let _style = {}
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if (showError) {
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_style.border = '1px solid red'
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}
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return (
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<React.Fragment>
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<div className={`df ${className} ${imageExpand && 'editormd-image-click-expand'}`} >
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{/* padding10-20 */}
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<div className="edu-back-greyf5 radius4" id={`mdEditor_${mdID}`} style={{ ..._style }}>
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<textarea style={{ display: 'none' }} id={`mdEditors_${mdID}`} name="content"></textarea>
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<div className="CodeMirror cm-s-defualt">
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</div>
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</div>
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</div>
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<div className={"fr rememberTip"}>
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{noStorage == true ? ' ' : <div id={`e_tips_mdEditor_${mdID}`} className="edu-txt-right color-grey-cd font-12"> </div>}
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{/* {noStorage == true ? ' ' : <p id={`e_tips_mdEditor_${mdID}`} className="edu-txt-right color-grey-cd font-12"> </p>} */}
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</div>
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</React.Fragment>
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)
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}
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}
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