fix(jetbrains): hide focused prompt separator

.changeset/jetbrains-prompt-focus-separator.md

@@ -0,0 +1,5 @@
+---
+"@kilocode/kilo-jetbrains": patch
+---
+
+Hide the JetBrains prompt separator while the prompt is focused.

packages/kilo-jetbrains/frontend/src/main/kotlin/ai/kilocode/client/session/ui/prompt/PromptPanel.kt

@@ -133,6 +133,7 @@ class PromptPanel(
     var onAutoApproveToggle: (Boolean) -> Unit = {}
     var onFileDrag: (Boolean) -> Unit = {}
     private var style = SessionEditorStyle.current()
+    private var focused = false
     private val shell = BorderLayoutPanel().apply {
         isOpaque = true
         border = JBUI.Borders.empty(
@@ -198,11 +199,11 @@ class PromptPanel(
             })
             ed.contentComponent.addFocusListener(object : FocusAdapter() {
                 override fun focusGained(e: FocusEvent) {
-                    repaint()
+                    syncFocus(true)
                 }
 
                 override fun focusLost(e: FocusEvent) {
-                    repaint()
+                    syncFocus(false)
                 }
             })
         }
@@ -301,8 +302,27 @@ class PromptPanel(
 
     override fun updateUI() {
         super.updateUI()
+        syncBorder()
+    }
+
+    private fun syncFocus(value: Boolean) {
+        if (focused == value) {
+            repaint()
+            return
+        }
+        focused = value
+        syncBorder()
+        revalidate()
+        repaint()
+    }
+
+    private fun syncBorder() {
         border = JBUI.Borders.compound(
-            JBUI.Borders.customLineTop(SessionUiStyle.View.Prompt.separator()),
+            if (focused) {
+                JBUI.Borders.emptyTop(JBUI.scale(1))
+            } else {
+                JBUI.Borders.customLineTop(SessionUiStyle.View.Prompt.separator())
+            },
             JBUI.Borders.empty(),
         )
     }

packages/kilo-jetbrains/frontend/src/test/kotlin/ai/kilocode/client/session/ui/PromptPanelTest.kt

@@ -80,6 +80,7 @@ import java.awt.KeyboardFocusManager
 import java.awt.datatransfer.DataFlavor
 import java.awt.datatransfer.StringSelection
 import java.awt.datatransfer.Transferable
+import java.awt.event.FocusEvent
 import java.awt.event.MouseEvent
 import java.awt.image.BufferedImage
 import java.io.ByteArrayOutputStream
@@ -161,10 +162,15 @@ class PromptPanelTest : BasePlatformTestCase() {
         val focus = TestFocusManager()
         KeyboardFocusManager.setCurrentKeyboardFocusManager(focus)
         try {
+            assertEquals(SessionUiStyle.View.Prompt.separator().rgb, paint(panel, panel.width / 2, 0).rgb)
             assertTrue(JBUI.CurrentTheme.Focus.focusColor().rgb != paint(panel, panel.width / 2, 1).rgb)
 
             focus.focus(editor.contentComponent)
+            editor.contentComponent.focusListeners.forEach {
+                it.focusGained(FocusEvent(editor.contentComponent, FocusEvent.FOCUS_GAINED))
+            }
 
+            assertTrue(SessionUiStyle.View.Prompt.separator().rgb != paint(panel, panel.width / 2, 0).rgb)
             assertEquals(JBUI.CurrentTheme.Focus.focusColor().rgb, paint(panel, panel.width / 2, 1).rgb)
         } finally {
             KeyboardFocusManager.setCurrentKeyboardFocusManager(current)