Teach L4 only changed rejection words

Author: radislabus-star

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "lay"
-version = "0.2.212"
+version = "0.2.213"
 edition = "2021"
 description = "Alpha Double Shift RU/EN layout rescue for Linux desktops"
 license-file = "LICENSE"

Cargo.toml

@@ -13,7 +13,7 @@ number from `git rev-list`.
 
 Current publication branch version:
 
-- `0.2.212`
+- `0.2.213`
 
 Do not rely on commit counts. Before publishing or pushing, run the bump script
 or verify the version fields manually.

VERSIONING.md

@@ -1,8 +1,8 @@
 {
     "uuid": "lay@radislabus-star.github.io",
     "name": "Lay Layout Switcher",
-    "version": 212,
-    "version-name": "0.2.212",
+    "version": 213,
+    "version-name": "0.2.213",
     "description": "Alpha GNOME Shell extension для lay-daemon. Показывает EN/RU в трее, переключает раскладку по клику. Минимальный DBus bridge для layout activation и fallback text insert.",
     "shell-version": ["45", "46", "47", "50"],
     "url": "https://github.com/radislabus-star/lay-public"

extension/lay@radislabus-star.github.io/metadata.json

@@ -6,7 +6,7 @@ import Gtk from 'gi://Gtk';
 import {ExtensionPreferences} from 'resource:///org/gnome/Shell/Extensions/js/extensions/prefs.js';
 
 const CONFIG_PATH = GLib.get_home_dir() + '/.config/lay/config.json';
-const APP_VERSION = '0.2.212';
+const APP_VERSION = '0.2.213';
 const APP_RELEASE_DATE = '2026-07-12';
 const APP_URL = 'https://github.com/radislabus-star/lay-public';
 const APP_ICON_NAME = 'input-keyboard-symbolic';

extension/lay@radislabus-star.github.io/prefs.js

@@ -4,7 +4,7 @@ import GLib from 'gi://GLib';
 import Gtk from 'gi://Gtk';
 
 const CONFIG_PATH = GLib.get_home_dir() + '/.config/lay/config.json';
-const APP_VERSION = '0.2.212';
+const APP_VERSION = '0.2.213';
 const APP_RELEASE_DATE = '2026-07-12';
 const APP_URL = 'https://github.com/radislabus-star/lay-public';
 const APP_ICON_NAME = 'input-keyboard-symbolic';

extension/lay@radislabus-star.github.io/settings.js

@@ -7,7 +7,7 @@ export const RECENT_ACTIONS_PATH = GLib.get_home_dir() + '/.local/share/lay/rece
 export const USAGE_COUNTS_PATH = GLib.get_home_dir() + '/.local/share/lay/nanda_wave/word_usage_counts.json';
 export const PROJECT_DIR = GLib.get_home_dir() + '/projects/lay';
 export const UPDATE_LOG_PATH = GLib.get_home_dir() + '/.local/state/lay/update.log';
-export const APP_VERSION = '0.2.212';
+export const APP_VERSION = '0.2.213';
 export const APP_DESCRIPTION = 'Альфа: RU/EN-переключатель по двойному Shift и помощь при наборе';
 export const APP_RELEASE_DATE = '2026-07-12';
 export const APP_LICENSE = 'Non-Commercial';

extension/lay@radislabus-star.github.io/tray_support.js

@@ -1239,20 +1239,21 @@ fn rejected_usage_events(pair: &DirtyLogPair) -> Vec<Value> {
     if rejected_words.is_empty() {
         return Vec::new();
     }
-    let context = previous_context_words(&pair.original);
-    rejected_words
+    let original_words = normalized_words(&pair.original);
+    changed_word_indexes(&original_words, &rejected_words)
         .into_iter()
-        .map(|word| {
-            json!({
+        .filter_map(|index| {
+            let word = rejected_words.get(index)?;
+            Some(json!({
                 "ts": pair.ts,
                 "kind": "rejected_candidate",
                 "word": word,
-                "context": context,
+                "context": words_before_index(&original_words, index.min(original_words.len())),
                 "from": pair.original.trim(),
                 "to": pair.expected.trim(),
                 "source": pair.source_id,
                 "operation": pair.operation
-            })
+            }))
         })
         .collect()
 }
@@ -1282,19 +1283,6 @@ fn words_before_index(words: &[String], index: usize) -> Vec<String> {
         .collect()
 }
 
-fn previous_context_words(text: &str) -> Vec<String> {
-    let mut words = normalized_words(text);
-    words.pop();
-    words
-        .into_iter()
-        .rev()
-        .take(5)
-        .collect::<Vec<_>>()
-        .into_iter()
-        .rev()
-        .collect()
-}
-
 fn normalized_words(text: &str) -> Vec<String> {
     text.split_whitespace().filter_map(normalize_word).collect()
 }
@@ -1649,4 +1637,22 @@ mod tests {
         assert_eq!(latest[0].train_role, "positive");
         assert_eq!(latest[0].ts, 2);
     }
+
+    #[test]
+    fn rejected_usage_records_only_the_changed_candidate_word() {
+        let value = serde_json::json!({
+            "ts": 3,
+            "lay_kind": "typing-assist",
+            "lay_from": "как попусы ",
+            "lay_to": "как опусы "
+        });
+        let pair = pair_from_correction(&value, "user_rejected_lay_output", "lay_from", "lay_to")
+            .expect("negative pair");
+
+        let events = rejected_usage_events(&pair);
+
+        assert_eq!(events.len(), 1);
+        assert_eq!(events[0]["word"], "опусы");
+        assert_eq!(events[0]["context"], serde_json::json!(["как"]));
+    }
 }