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silverbullet/plugs/core/anchor.ts
2022-10-14 15:11:33 +02:00

43 lines
1.3 KiB
TypeScript

import { collectNodesOfType } from "$sb/lib/tree.ts";
import { editor, index } from "$sb/silverbullet-syscall/mod.ts";
import type { IndexTreeEvent } from "$sb/app_event.ts";
import { removeQueries } from "$sb/lib/query.ts";
// Key space
// a:pageName:anchorName => pos
export async function indexAnchors({ name: pageName, tree }: IndexTreeEvent) {
removeQueries(tree);
const anchors: { key: string; value: string }[] = [];
collectNodesOfType(tree, "NamedAnchor").forEach((n) => {
const aName = n.children![0].text!;
anchors.push({
key: `a:${pageName}:${aName}`,
value: "" + n.from,
});
});
console.log("Found", anchors.length, "anchors(s)");
await index.batchSet(pageName, anchors);
}
export async function anchorComplete() {
const prefix = await editor.matchBefore("\\[\\[[^\\]@:]*@[\\w\\.\\-\\/]*");
if (!prefix) {
return null;
}
const [pageRefPrefix, anchorRef] = prefix.text.split("@");
let pageRef = pageRefPrefix.substring(2);
if (!pageRef) {
pageRef = await editor.getCurrentPage();
}
const allAnchors = await index.queryPrefix(`a:${pageRef}:@${anchorRef}`);
return {
from: prefix.from + pageRefPrefix.length + 1,
options: allAnchors.map((a) => ({
label: a.key.split("@")[1],
type: "anchor",
})),
};
}