fix(gui): improve focus handling in AutoDevInputSection #51

The focus handling logic in the AutoDevInputSection has been refactored to directly request focus from the IdeFocusManager and to move the caret to the end of the input text. Additionally, the component popup builder now sets cancel on click outside and cancel on window deactivation to true for a better user experience.

Author: phodal

src/main/kotlin/cc/unitmesh/devti/gui/chat/AutoDevInputSection.kt

@@ -138,8 +138,8 @@ class AutoDevInputSection(private val project: Project, val disposable: Disposab
         val horizontalGlue = Box.createHorizontalGlue()
         horizontalGlue.addMouseListener(object : MouseAdapter() {
             override fun mouseClicked(e: MouseEvent?) {
-                val ideFocusManager = IdeFocusManager.getInstance(project)
-                ideFocusManager.requestFocus(input, true)
+                IdeFocusManager.getInstance(project).requestFocus(input, true)
+                input.caretModel.moveToOffset(input.text.length - 1)
             }
         })
         layoutPanel.background = JBColor(
@@ -201,8 +201,9 @@ class AutoDevInputSection(private val project: Project, val disposable: Disposab
                             text += "${selectedItem.customVariable.variable} "
                         }
 
-                        this@AutoDevInputSection.input.requestFocus()
                         this@AutoDevInputSection.popup?.cancel()
+                        input.requestFocus()
+                        input.caretModel.moveToOffset(input.text.length - 1)
                     }
 
                     KeyEvent.VK_DOWN -> {
@@ -230,6 +231,8 @@ class AutoDevInputSection(private val project: Project, val disposable: Disposab
             .createComponentPopupBuilder(list, null)
             .setFocusable(true)
             .setRequestFocus(true)
+            .setCancelOnClickOutside(true)
+            .setCancelOnWindowDeactivation(true)
             .setMinSize(Dimension(this@AutoDevInputSection.width, 0))
             .createPopup()