Make post hooks trigger even when a different handler processes input.

The default handler is now simply a fallback.
pull/11/head
Blaž Hrastnik 4 years ago
parent b0bdcab970
commit ab4decfd6d

@ -42,13 +42,8 @@
- [ ] lsp: formatting
- [x] lsp: goto
- [ ] search: wrap around file
- [ ] search: smart case by default: insensitive unless upper detected
- decide if markdown should have vertical padding too
- the hooks system should be better for pre/post insert.
2
- [ ] surround bindings (select + surround ( wraps selection in parens )
- [ ] macro recording

@ -1271,9 +1271,6 @@ pub mod insert {
pub type Hook = fn(&Rope, &Selection, char) -> Option<Transaction>;
pub type PostHook = fn(&mut Context, char);
use helix_core::auto_pairs;
const HOOKS: &[Hook] = &[auto_pairs::hook];
fn completion(cx: &mut Context, ch: char) {
// if ch matches completion char, trigger completion
let doc = cx.doc();
@ -1302,7 +1299,6 @@ pub mod insert {
}
}
// TODO: the pre-hook handles ( so post hook never gets called
fn signature_help(cx: &mut Context, ch: char) {
// if ch matches signature_help char, trigger
let doc = cx.doc();
@ -1330,27 +1326,35 @@ pub mod insert {
super::signature_help(cx);
}
}
// 2021-05-03T17:54:36.326 hx::commands [INFO] SignatureHelp { signatures: [SignatureInformation { label: "fn open(&mut self, path: PathBuf, action: Action) -> Result<DocumentId, Error>", documentation: None, parameters: Some([ParameterInformation { label: Simple("path: PathBuf"), documentation: None }, ParameterInformation { label: Simple("action: Action"), documentation: None }]), active_parameter: Some(0) }], active_signature: None, active_parameter: Some(0) }
}
// The default insert hook: simply insert the character
fn insert(doc: &Rope, selection: &Selection, ch: char) -> Option<Transaction> {
let t = Tendril::from_char(ch);
let transaction = Transaction::insert(doc, selection, t);
Some(transaction)
}
use helix_core::auto_pairs;
const HOOKS: &[Hook] = &[auto_pairs::hook, insert];
const POST_HOOKS: &[PostHook] = &[completion, signature_help];
// TODO: insert means add text just before cursor, on exit we should be on the last letter.
pub fn insert_char(cx: &mut Context, c: char) {
let (view, doc) = cx.current();
let text = doc.text();
let selection = doc.selection(view.id);
// run through insert hooks, stopping on the first one that returns Some(t)
for hook in HOOKS {
if let Some(transaction) = hook(doc.text(), doc.selection(view.id), c) {
if let Some(transaction) = hook(text, selection, c) {
doc.apply(&transaction, view.id);
return;
break;
}
}
let t = Tendril::from_char(c);
let transaction = Transaction::insert(doc.text(), doc.selection(view.id), t);
doc.apply(&transaction, view.id);
// TODO: need a post insert hook too for certain triggers (autocomplete, signature help, etc)
// this could also generically look at Transaction, but it's a bit annoying to look at
// Operation instead of Change.

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