118 lines
3.3 KiB
TypeScript
118 lines
3.3 KiB
TypeScript
import {
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Decoration,
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EditorState,
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EditorView,
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syntaxTree,
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WidgetType,
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} from "../deps.ts";
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import {
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decoratorStateField,
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invisibleDecoration,
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isCursorInRange,
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} from "./util.ts";
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import { renderMarkdownToHtml } from "../../plugs/markdown/markdown_render.ts";
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import { ParseTree } from "$sb/lib/tree.ts";
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import { lezerToParseTree } from "../../common/markdown_parser/parse_tree.ts";
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import type { Editor } from "../editor.tsx";
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import { urlToPathname } from "../../plugos/util.ts";
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class TableViewWidget extends WidgetType {
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constructor(
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readonly pos: number,
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readonly editor: Editor,
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readonly t: ParseTree,
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) {
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super();
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}
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toDOM(): HTMLElement {
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const dom = document.createElement("span");
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dom.classList.add("sb-table-widget");
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dom.addEventListener("click", (e) => {
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// Pulling data-pos to put the cursor in the right place, falling back
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// to the start of the table.
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const dataAttributes = (e.target as any).dataset;
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this.editor.editorView!.dispatch({
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selection: {
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anchor: dataAttributes.pos ? +dataAttributes.pos : this.pos,
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},
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});
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});
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renderMarkdownToHtml(this.t, {
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// Annotate every element with its position so we can use it to put
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// the cursor there when the user clicks on the table.
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annotationPositions: true,
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inlineAttachments: async (url): Promise<string> => {
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if (!url.includes("://")) {
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try {
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const d = await this.editor.space.readAttachment(url, "dataurl");
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return d.data as string;
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} catch (e: any) {
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console.error(e);
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return url;
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}
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}
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return url;
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},
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}).then((html) => {
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dom.innerHTML = html;
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});
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return dom;
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}
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}
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export function tablePlugin(editor: Editor) {
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return decoratorStateField((state: EditorState) => {
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const widgets: any[] = [];
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syntaxTree(state).iterate({
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enter: (node) => {
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const { from, to, name } = node;
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if (name !== "Table") return;
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if (isCursorInRange(state, [from, to])) return;
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const tableText = state.sliceDoc(from, to);
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const lineStrings = tableText.split("\n");
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const lines: { from: number; to: number }[] = [];
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let fromIt = from;
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for (const line of lineStrings) {
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lines.push({
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from: fromIt,
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to: fromIt + line.length,
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});
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fromIt += line.length + 1;
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}
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const firstLine = lines[0], lastLine = lines[lines.length - 1];
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// In case of doubt, back out
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if (!firstLine || !lastLine) return;
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widgets.push(invisibleDecoration.range(firstLine.from, firstLine.to));
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widgets.push(invisibleDecoration.range(lastLine.from, lastLine.to));
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lines.slice(1, lines.length - 1).forEach((line) => {
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widgets.push(
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Decoration.line({ class: "sb-line-table-outside" }).range(
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line.from,
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),
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);
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});
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const text = state.sliceDoc(0, to);
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widgets.push(
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Decoration.widget({
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widget: new TableViewWidget(
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from,
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editor,
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lezerToParseTree(text, node.node),
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),
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}).range(from),
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);
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},
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});
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return Decoration.set(widgets, true);
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});
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}
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