106 lines
2.6 KiB
TypeScript
106 lines
2.6 KiB
TypeScript
// Copyright: Ankitects Pty Ltd and contributors
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// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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import * as CodeMirror from "codemirror/lib/codemirror";
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import "codemirror/mode/htmlmixed/htmlmixed";
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import "codemirror/mode/stex/stex";
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import "codemirror/addon/fold/foldcode";
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import "codemirror/addon/fold/foldgutter";
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import "codemirror/addon/fold/xml-fold";
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import "codemirror/addon/edit/matchtags.js";
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import "codemirror/addon/edit/closetag.js";
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import { inCodable } from "./toolbar";
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const latex = {
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name: "stex",
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inMathMode: true,
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};
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const htmlanki = {
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name: "htmlmixed",
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tags: {
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"anki-mathjax": [[null, null, latex]],
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},
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};
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const codeMirrorOptions = {
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mode: htmlanki,
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theme: "monokai",
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lineNumbers: true,
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lineWrapping: true,
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foldGutter: true,
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gutters: ["CodeMirror-linenumbers", "CodeMirror-foldgutter"],
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matchTags: { bothTags: true },
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autoCloseTags: true,
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extraKeys: { Tab: false, "Shift-Tab": false },
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viewportMargin: Infinity,
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lineWiseCopyCut: false,
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};
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const parser = new DOMParser();
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function parseHTML(html: string): string {
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const doc = parser.parseFromString(html, "text/html");
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return doc.body.innerHTML;
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}
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export class Codable extends HTMLTextAreaElement {
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codeMirror: CodeMirror | undefined;
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get active(): boolean {
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return Boolean(this.codeMirror);
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}
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set fieldHTML(content: string) {
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if (this.active) {
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this.codeMirror.setValue(content);
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} else {
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this.value = content;
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}
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}
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get fieldHTML(): string {
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return parseHTML(this.active ? this.codeMirror.getValue() : this.value);
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}
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connectedCallback(): void {
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this.setAttribute("hidden", "");
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}
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setup(html: string): void {
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this.fieldHTML = html;
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this.codeMirror = CodeMirror.fromTextArea(this, codeMirrorOptions);
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}
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teardown(): string {
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this.codeMirror.toTextArea();
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this.codeMirror = undefined;
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return this.fieldHTML;
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}
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focus(): void {
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this.codeMirror.focus();
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inCodable.set(true);
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}
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caretToEnd(): void {
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this.codeMirror.setCursor(this.codeMirror.lineCount(), 0);
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}
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surroundSelection(before: string, after: string): void {
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const selection = this.codeMirror.getSelection();
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this.codeMirror.replaceSelection(before + selection + after);
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}
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onEnter(): void {
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/* default */
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}
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onPaste(): void {
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/* default */
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}
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}
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customElements.define("anki-codable", Codable, { extends: "textarea" });
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