Remove unused lookup aggregation; add delete/backspace handling and click-to-edit

Eliminate allAvailableItems property and allGroupItemsJob
Remove handleSuggestionSelection function
Add delete/backspace key handling to refresh group lookup
Enable search field text editor to become editable on mouse click

Author: a.iudin

src/main/kotlin/ee/carlrobert/codegpt/ui/textarea/PromptTextField.kt

@@ -69,7 +69,6 @@ class PromptTextField(
     private var currentPopup: JBPopup? = null
     private var currentParentGroup: LookupGroupItem? = null
     private var currentItems: List<LookupItem> = emptyList()
-    private var allAvailableItems: List<LookupItem> = emptyList()
 
     init {
         isOneLineMode = false
@@ -111,21 +110,6 @@ class PromptTextField(
         withContext(Dispatchers.EDT) {
             editor?.let { showPopupLookup(it, lookupItems) }
         }
-
-        allGroupItemsJob?.cancel()
-        allGroupItemsJob = coroutineScope.launch {
-            val allItems = mutableListOf<LookupItem>()
-            lookupItems.forEach { group ->
-                if (group is LookupGroupItem) {
-                    runCatchingCancellable {
-                        allItems.addAll(group.getLookupItems())
-                    }
-                } else {
-                    allItems.add(group)
-                }
-            }
-            allAvailableItems = allItems
-        }
     }
 
     private fun showPopupLookup(editor: Editor, items: List<LookupItem>) {
@@ -210,6 +194,16 @@ class PromptTextField(
                                 e.consume()
                             }
 
+                            KeyEvent.VK_DELETE, KeyEvent.VK_BACK_SPACE -> {
+                                if (parentGroup != null) {
+                                    showSuggestionsJob?.cancel()
+                                    showSuggestionsJob = coroutineScope.launch {
+                                        showGroupLookup()
+                                    }
+                                    e.consume()
+                                }
+                            }
+
                             else -> {
                                 if (e.keyChar.isLetterOrDigit() || e.keyChar.isWhitespace()) {
                                     searchField.textEditor.isEditable = true
@@ -240,6 +234,16 @@ class PromptTextField(
             searchField.apply {
                 textEditor.isEditable = false
 
+                textEditor.addMouseListener(object : MouseAdapter() {
+                    override fun mouseClicked(e: MouseEvent) {
+                        textEditor.isEditable = true
+                        textEditor.requestFocusInWindow()
+                        val text = textEditor.text
+                        textEditor.caretPosition = text.length
+                        textEditor.caret.isVisible = true
+                    }
+                })
+
                 textEditor.addKeyListener(object : KeyAdapter() {
                     override fun keyPressed(e: KeyEvent) {
                         when (e.keyCode) {
@@ -459,13 +463,6 @@ class PromptTextField(
         }
     }
 
-    private fun handleSuggestionSelection(editor: Editor, item: LookupItem) {
-        if (item !is LookupActionItem) return
-
-        replaceAtSymbol(editor, item)
-        onLookupAdded(item)
-    }
-
     private fun replaceAtSymbol(editor: Editor, lookupItem: LookupItem) {
         val offset = editor.caretModel.offset
         val start = findAtSymbolPosition(editor)
@@ -509,7 +506,6 @@ class PromptTextField(
     override fun dispose() {
         searchJob?.cancel()
         showSuggestionsJob?.cancel()
-        allGroupItemsJob?.cancel()
         currentPopup?.cancel()
     }