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silverbullet/webapp/syscalls/editor.browser.ts

134 lines
3.6 KiB
TypeScript

import { Editor } from "../editor";
import { syntaxTree } from "@codemirror/language";
import { Transaction } from "@codemirror/state";
import { PageMeta } from "../types";
type SyntaxNode = {
name: string;
text: string;
from: number;
to: number;
};
function ensureAnchor(expr: any, start: boolean) {
var _a;
let { source } = expr;
let addStart = start && source[0] != "^",
addEnd = source[source.length - 1] != "$";
if (!addStart && !addEnd) return expr;
return new RegExp(
`${addStart ? "^" : ""}(?:${source})${addEnd ? "$" : ""}`,
(_a = expr.flags) !== null && _a !== void 0
? _a
: expr.ignoreCase
? "i"
: ""
);
}
export default (editor: Editor) => ({
"editor.getCurrentPage": (): string => {
return editor.currentPage!;
},
"editor.getText": () => {
return editor.editorView?.state.sliceDoc();
},
"editor.getCursor": (): number => {
return editor.editorView!.state.selection.main.from;
},
"editor.navigate": async (name: string) => {
await editor.navigate(name);
},
"editor.openUrl": async (url: string) => {
window.open(url, "_blank")!.focus();
},
"editor.insertAtPos": (text: string, pos: number) => {
editor.editorView!.dispatch({
changes: {
insert: text,
from: pos,
},
});
},
"editor.replaceRange": (from: number, to: number, text: string) => {
editor.editorView!.dispatch({
changes: {
insert: text,
from: from,
to: to,
},
});
},
"editor.moveCursor": (pos: number) => {
editor.editorView!.dispatch({
selection: {
anchor: pos,
},
});
},
"editor.insertAtCursor": (text: string) => {
let editorView = editor.editorView!;
let from = editorView.state.selection.main.from;
editorView.dispatch({
changes: {
insert: text,
from: from,
},
selection: {
anchor: from + text.length,
},
});
},
"editor.getSyntaxNodeUnderCursor": (): SyntaxNode | undefined => {
const editorState = editor.editorView!.state;
let selection = editorState.selection.main;
if (selection.empty) {
let node = syntaxTree(editorState).resolveInner(selection.from);
if (node) {
return {
name: node.name,
text: editorState.sliceDoc(node.from, node.to),
from: node.from,
to: node.to,
};
}
}
},
"editor.matchBefore": (
regexp: string
): { from: number; to: number; text: string } | null => {
const editorState = editor.editorView!.state;
let selection = editorState.selection.main;
let from = selection.from;
if (selection.empty) {
let line = editorState.doc.lineAt(from);
let start = Math.max(line.from, from - 250);
let str = line.text.slice(start - line.from, from - line.from);
let found = str.search(ensureAnchor(new RegExp(regexp), false));
// console.log("Line", line, start, str, new RegExp(regexp), found);
return found < 0
? null
: { from: start + found, to: from, text: str.slice(found) };
}
return null;
},
"editor.getSyntaxNodeAtPos": (pos: number): SyntaxNode | undefined => {
const editorState = editor.editorView!.state;
let node = syntaxTree(editorState).resolveInner(pos);
if (node) {
return {
name: node.name,
text: editorState.sliceDoc(node.from, node.to),
from: node.from,
to: node.to,
};
}
},
"editor.dispatch": (change: Transaction) => {
editor.editorView!.dispatch(change);
},
"editor.prompt": (message: string, defaultValue = ""): string | null => {
return prompt(message, defaultValue);
},
});