feat: update the phantom while typing

plugin/listeners.py

@@ -34,7 +34,8 @@ def on_modified_async(self) -> None:
             return
 
         vcm = ViewCompletionManager(self.view)
-        vcm.handle_text_change()
+        if vcm.handle_text_change():
+            return
 
         if not self._is_saving and get_session_setting(session, "auto_ask_completions") and not vcm.is_waiting:
             plugin.request_get_completions(self.view)

plugin/ui/completion.py

@@ -115,11 +115,31 @@ def handle_selection_change(self) -> None:
 
         self.hide()
 
-    def handle_text_change(self) -> None:
+    def handle_text_change(self) -> bool:
         if not (self.is_phantom and self.is_visible):
-            return
+            return False
 
-        self.hide()
+        if self.current_completion and len(self.view.sel()) == 1 and self.view.sel()[0].empty():
+            current_completion = self.current_completion
+            point = self.view.sel()[0].begin()
+            region = sublime.Region(current_completion["point"], point)
+            text = self.view.substr(region)
+
+            if current_completion["displayText"].startswith(text):
+                current_completion["displayText"] = current_completion["displayText"][len(region) :]
+                self.completion_style_type(
+                    self.view, current_completion, self.completion_index, len(self.completions)
+                ).show()
+
+                return True
+            else:
+                self.hide()
+
+                return False
+        else:
+            self.hide()
+
+            return False
 
     def handle_close(self) -> None:
         if not self.is_phantom: