fix(chat): 调整输入交互并加固 WS/告警处理

tests/unit/test_chat_ui_input_regressions.gd

@@ -0,0 +1,85 @@
+extends SceneTree
+
+# ChatUI 输入交互回归测试（无需 GUT）
+#
+# 运行方式（Godot 4.6）:
+#   "D:\technology\biancheng\Godot_v4.6-stable_win64.exe\Godot_v4.6-stable_win64_console.exe" --headless --path . --script tests/unit/test_chat_ui_input_regressions.gd
+
+var _failures: Array[String] = []
+
+func _init() -> void:
+	call_deferred("_run")
+
+func _run() -> void:
+	await _test_t_opens_enter_sends_outside_click_hides()
+
+	if _failures.is_empty():
+		print("PASS: test_chat_ui_input_regressions")
+		quit(0)
+		return
+
+	for failure in _failures:
+		push_error(failure)
+	print("FAIL: test_chat_ui_input_regressions (%d)" % _failures.size())
+	quit(1)
+
+func _test_t_opens_enter_sends_outside_click_hides() -> void:
+	var packed_scene: PackedScene = load("res://scenes/ui/ChatUI.tscn")
+	_assert(packed_scene != null, "应能加载 ChatUI.tscn")
+	if packed_scene == null:
+		return
+
+	var chat_ui = packed_scene.instantiate()
+	root.add_child(chat_ui)
+	await process_frame
+	await process_frame
+
+	var chat_panel = chat_ui.chat_panel
+	var chat_input = chat_ui.chat_input
+
+	_assert(not chat_panel.visible, "初始化时聊天框应隐藏")
+	_assert(not chat_ui._is_chat_visible, "初始化时 _is_chat_visible 应为 false")
+
+	var enter_event := InputEventKey.new()
+	enter_event.pressed = true
+	enter_event.keycode = KEY_ENTER
+	chat_ui._input(enter_event)
+	await process_frame
+	_assert(not chat_panel.visible, "聊天框隐藏时按 Enter 不应唤起聊天框")
+
+	var t_event := InputEventKey.new()
+	t_event.pressed = true
+	t_event.keycode = KEY_T
+	chat_ui._input(t_event)
+	await create_timer(0.7).timeout
+
+	_assert(chat_panel.visible, "按 T 后聊天框应显示")
+	_assert(chat_ui._is_chat_visible, "按 T 后 _is_chat_visible 应为 true")
+	_assert(chat_input.has_focus(), "按 T 后输入框应获得焦点")
+
+	chat_input.text = "hello world"
+	chat_ui._on_chat_input_submitted(chat_input.text)
+	await process_frame
+	_assert(chat_input.text.is_empty(), "输入框有内容时按 Enter 应触发发送并清空输入框")
+	_assert(chat_input.has_focus(), "按 Enter 发送后输入框应自动保持焦点，便于连续输入")
+
+	# 将鼠标移动到左上角，通常在聊天框外
+	var viewport := root.get_viewport()
+	if viewport:
+		viewport.warp_mouse(Vector2.ZERO)
+
+	var mouse_event := InputEventMouseButton.new()
+	mouse_event.button_index = MOUSE_BUTTON_LEFT
+	mouse_event.pressed = true
+	chat_ui._gui_input(mouse_event)
+	await create_timer(0.7).timeout
+
+	_assert(not chat_ui._is_chat_visible, "点击聊天框外部后 _is_chat_visible 应为 false")
+	_assert(not chat_panel.visible, "点击聊天框外部后聊天框应隐藏")
+
+	chat_ui.queue_free()
+	await process_frame
+
+func _assert(condition: bool, message: String) -> void:
+	if not condition:
+		_failures.append(message)