Make post hooks trigger even when a different handler processes input.
The default handler is now simply a fallback.
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2 changed files with 16 additions and 17 deletions
5
TODO.md
5
TODO.md
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@ -42,13 +42,8 @@
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- [ ] lsp: formatting
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- [x] lsp: goto
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- [ ] search: wrap around file
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- [ ] search: smart case by default: insensitive unless upper detected
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- decide if markdown should have vertical padding too
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- the hooks system should be better for pre/post insert.
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2
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- [ ] surround bindings (select + surround ( wraps selection in parens )
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- [ ] macro recording
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@ -1271,9 +1271,6 @@ pub mod insert {
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pub type Hook = fn(&Rope, &Selection, char) -> Option<Transaction>;
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pub type PostHook = fn(&mut Context, char);
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use helix_core::auto_pairs;
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const HOOKS: &[Hook] = &[auto_pairs::hook];
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fn completion(cx: &mut Context, ch: char) {
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// if ch matches completion char, trigger completion
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let doc = cx.doc();
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@ -1302,7 +1299,6 @@ pub mod insert {
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}
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}
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// TODO: the pre-hook handles ( so post hook never gets called
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fn signature_help(cx: &mut Context, ch: char) {
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// if ch matches signature_help char, trigger
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let doc = cx.doc();
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@ -1330,27 +1326,35 @@ pub mod insert {
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super::signature_help(cx);
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}
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}
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// 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) }
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}
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// The default insert hook: simply insert the character
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fn insert(doc: &Rope, selection: &Selection, ch: char) -> Option<Transaction> {
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let t = Tendril::from_char(ch);
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let transaction = Transaction::insert(doc, selection, t);
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Some(transaction)
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}
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use helix_core::auto_pairs;
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const HOOKS: &[Hook] = &[auto_pairs::hook, insert];
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const POST_HOOKS: &[PostHook] = &[completion, signature_help];
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// TODO: insert means add text just before cursor, on exit we should be on the last letter.
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pub fn insert_char(cx: &mut Context, c: char) {
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let (view, doc) = cx.current();
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let text = doc.text();
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let selection = doc.selection(view.id);
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// run through insert hooks, stopping on the first one that returns Some(t)
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for hook in HOOKS {
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if let Some(transaction) = hook(doc.text(), doc.selection(view.id), c) {
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if let Some(transaction) = hook(text, selection, c) {
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doc.apply(&transaction, view.id);
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return;
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break;
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}
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}
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let t = Tendril::from_char(c);
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let transaction = Transaction::insert(doc.text(), doc.selection(view.id), t);
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doc.apply(&transaction, view.id);
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// TODO: need a post insert hook too for certain triggers (autocomplete, signature help, etc)
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// this could also generically look at Transaction, but it's a bit annoying to look at
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// Operation instead of Change.
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