fix: use custom CompletionPublisher to avoid recreating completion list in IDELanguage

editor/src/main/java/com/itsaky/androidide/editor/language/IDELanguage.java

@@ -19,6 +19,7 @@ package com.itsaky.androidide.editor.language;
 import android.os.Bundle;
 import androidx.annotation.NonNull;
 import com.itsaky.androidide.editor.api.IEditor;
+import com.itsaky.androidide.editor.ui.IDECompletionPublisher;
 import com.itsaky.androidide.lookup.Lookup;
 import com.itsaky.androidide.lsp.api.ILanguageServer;
 import com.itsaky.androidide.preferences.internal.EditorPreferencesKt;
@@ -84,7 +85,8 @@ public abstract class IDELanguage implements Language {
         completionProvider.complete(content, file, position, this::checkIsCompletionChar);
 
     publisher.setUpdateThreshold(1);
-    publisher.addItems(new ArrayList<>(completionItems));
+
+    ((IDECompletionPublisher) publisher).addLSPItems(completionItems);
   }
 
   protected ILanguageServer getLanguageServer() {

editor/src/main/java/com/itsaky/androidide/editor/ui/EditorCompletionWindow.kt

@@ -123,7 +123,7 @@ class EditorCompletionWindow(val editor: IDEEditor) : EditorAutoCompletion(edito
     currentSelection = -1
 
     publisher =
-      CompletionPublisher(
+      IDECompletionPublisher(
         editor.handler,
         {
           val items = publisher.items

editor/src/main/java/com/itsaky/androidide/editor/ui/IDECompletionPublisher.kt

@@ -0,0 +1,45 @@
+/*
+ *  This file is part of AndroidIDE.
+ *
+ *  AndroidIDE is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  AndroidIDE is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.itsaky.androidide.editor.ui
+
+import android.os.Handler
+import io.github.rosemoe.sora.lang.completion.CompletionItem
+import io.github.rosemoe.sora.lang.completion.CompletionPublisher
+
+/**
+ * [CompletionPublisher] implementation for AndroidIDE.
+ *
+ * @author Akash Yadav
+ */
+class IDECompletionPublisher(
+  handler: Handler,
+  callback: Runnable,
+  languageInterruptionLevel: Int
+) : CompletionPublisher(handler, callback, languageInterruptionLevel) {
+
+  init {
+    setUpdateThreshold(1)
+  }
+
+  /**
+   * Adds the given [completion items][items] to the completion list.
+   */
+  fun <CompletionItemT : CompletionItem> addLSPItems(items: Collection<CompletionItemT>) {
+    super.addItems(items)
+  }
+}