fix(amazonq): skip inline completion when deleting (#5874)

* skip inline completion when deleting

* detekt

* use offset

* separate implementation for 2024.2 and 2024.3+

* detekt

* detekt

Author: leigaol

.changes/next-release/bugfix-2488e2f1-f725-4e01-b38a-8b6953cf5f18.json

@@ -0,0 +1,4 @@
+{
+  "type" : "bugfix",
+  "description" : "Skip inline completion when deleting characters"
+}

plugins/amazonq/codewhisperer/jetbrains-community/src-242/software/aws/toolkits/jetbrains/services/codewhisperer/popup/QManualCall.kt

@@ -19,3 +19,6 @@ fun getManualCallEvent(editor: Editor, isIntelliSenseAccept: Boolean): InlineCom
     }
     return InlineCompletionEvent.DirectCall(editor, editor.caretModel.currentCaret, dataContext)
 }
+
+@Suppress("FunctionOnlyReturningConstant")
+fun InlineCompletionEvent.isDeletion(): Boolean = false

plugins/amazonq/codewhisperer/jetbrains-community/src-243+/software/aws/toolkits/jetbrains/services/codewhisperer/popup/QManualCall.kt

@@ -15,3 +15,6 @@ fun getManualCallEvent(editor: Editor, isIntelliSenseAccept: Boolean): InlineCom
     val data = UserDataHolderBase().apply { this.putUserData(KEY_Q_AUTO_TRIGGER_INTELLISENSE, isIntelliSenseAccept) }
     return InlineCompletionEvent.ManualCall(editor, Q_INLINE_PROVIDER_ID, data)
 }
+
+fun InlineCompletionEvent.isDeletion(): Boolean =
+    this is InlineCompletionEvent.Backspace

plugins/amazonq/codewhisperer/jetbrains-community/src/software/aws/toolkits/jetbrains/services/codewhisperer/popup/QInlineCompletionProvider.kt

@@ -404,6 +404,14 @@ class QInlineCompletionProvider(private val cs: CoroutineScope) : InlineCompleti
             CodeWhispererInvocationStatus.getInstance().setIsInvokingQInline(session, false)
         }
 
+        // this is only available in 2024.3+
+        if (request.event.isDeletion()) {
+            logInline(triggerSessionId) {
+                "Skip inline completion when deleting"
+            }
+            return InlineCompletionSuggestion.Empty
+        }
+
         val sessionContext = InlineCompletionSessionContext(triggerOffset = request.endOffset)
 
         // Pagination workaround: Always return exactly 5 variants