mirror of
https://github.com/BookStackApp/BookStack.git
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136 lines
4.4 KiB
JavaScript
136 lines
4.4 KiB
JavaScript
import {onChildEvent, onEnterPress, onSelect} from "../services/dom";
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/**
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* Code Editor
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* @extends {Component}
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*/
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class CodeEditor {
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setup() {
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this.container = this.$refs.container;
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this.popup = this.$el;
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this.editorInput = this.$refs.editor;
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this.languageLinks = this.$manyRefs.languageLink;
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this.saveButton = this.$refs.saveButton;
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this.languageInput = this.$refs.languageInput;
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this.historyDropDown = this.$refs.historyDropDown;
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this.historyList = this.$refs.historyList;
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this.callback = null;
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this.editor = null;
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this.history = {};
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this.historyKey = 'code_history';
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this.setupListeners();
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}
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setupListeners() {
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this.container.addEventListener('keydown', event => {
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if (event.ctrlKey && event.key === 'Enter') {
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this.save();
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}
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});
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onSelect(this.languageLinks, event => {
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const language = event.target.dataset.lang;
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this.languageInput.value = language;
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this.languageInputChange(language);
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});
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onEnterPress(this.languageInput, e => this.save());
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this.languageInput.addEventListener('input', e => this.languageInputChange(this.languageInput.value));
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onSelect(this.saveButton, e => this.save());
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onChildEvent(this.historyList, 'button', 'click', (event, elem) => {
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event.preventDefault();
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const historyTime = elem.dataset.time;
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if (this.editor) {
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this.editor.setValue(this.history[historyTime]);
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}
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});
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}
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save() {
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if (this.callback) {
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this.callback(this.editor.getValue(), this.languageInput.value);
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}
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this.hide();
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}
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open(code, language, callback) {
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this.languageInput.value = language;
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this.callback = callback;
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this.show()
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.then(() => this.languageInputChange(language))
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.then(() => window.importVersioned('code'))
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.then(Code => Code.setContent(this.editor, code));
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}
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async show() {
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const Code = await window.importVersioned('code');
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if (!this.editor) {
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this.editor = Code.popupEditor(this.editorInput, this.languageInput.value);
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}
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this.loadHistory();
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this.popup.components.popup.show(() => {
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Code.updateLayout(this.editor);
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this.editor.focus();
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}, () => {
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this.addHistory()
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});
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}
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hide() {
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this.popup.components.popup.hide();
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this.addHistory();
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}
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async updateEditorMode(language) {
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const Code = await window.importVersioned('code');
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Code.setMode(this.editor, language, this.editor.getValue());
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}
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languageInputChange(language) {
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this.updateEditorMode(language);
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const inputLang = language.toLowerCase();
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let matched = false;
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for (const link of this.languageLinks) {
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const lang = link.dataset.lang.toLowerCase().trim();
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const isMatch = inputLang && lang.startsWith(inputLang);
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link.classList.toggle('active', isMatch);
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if (isMatch && !matched) {
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link.scrollIntoView({block: "center", behavior: "smooth"});
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matched = true;
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}
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}
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}
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loadHistory() {
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this.history = JSON.parse(window.sessionStorage.getItem(this.historyKey) || '{}');
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const historyKeys = Object.keys(this.history).reverse();
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this.historyDropDown.classList.toggle('hidden', historyKeys.length === 0);
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this.historyList.innerHTML = historyKeys.map(key => {
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const localTime = (new Date(parseInt(key))).toLocaleTimeString();
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return `<li><button type="button" data-time="${key}" class="text-item">${localTime}</button></li>`;
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}).join('');
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}
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addHistory() {
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if (!this.editor) return;
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const code = this.editor.getValue();
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if (!code) return;
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// Stop if we'd be storing the same as the last item
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const lastHistoryKey = Object.keys(this.history).pop();
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if (this.history[lastHistoryKey] === code) return;
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this.history[String(Date.now())] = code;
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const historyString = JSON.stringify(this.history);
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window.sessionStorage.setItem(this.historyKey, historyString);
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}
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}
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export default CodeEditor; |