feat(gui): Implement custom title bar and window controls

src/gui_2.py

@@ -29,6 +29,8 @@ from src import mcp_client
 from src import markdown_helper
 from src import bg_shader
 import re
+import win32gui
+import win32con
 
 from pydantic import BaseModel
 from imgui_bundle import imgui, hello_imgui, immapp, imgui_node_editor as ed
@@ -364,7 +366,40 @@ class App:
      self.ai_status = f"error: {e}"
    imgui.end_menu()
 
+ def _render_custom_title_bar(self) -> None:
+  hwnd = imgui.get_main_viewport().platform_handle
+  if not hwnd: return
+  bar_height = 30
+  imgui.set_next_window_pos((0, 0))
+  imgui.set_next_window_size((imgui.get_io().display_size.x, bar_height))
+  flags = (imgui.WindowFlags_.no_title_bar | imgui.WindowFlags_.no_resize | 
+           imgui.WindowFlags_.no_move | imgui.WindowFlags_.no_scrollbar | 
+           imgui.WindowFlags_.no_saved_settings | imgui.WindowFlags_.no_bring_to_front_on_focus)
+  imgui.push_style_var(imgui.StyleVar_.window_rounding, 0)
+  imgui.push_style_var(imgui.StyleVar_.window_border_size, 0)
+  imgui.push_style_var(imgui.StyleVar_.window_padding, (10, 5))
+  if imgui.begin("##custom_title_bar", None, flags):
+   imgui.text("manual slop")
+   if imgui.is_window_hovered() and imgui.is_mouse_dragging(0):
+    win32gui.ReleaseCapture()
+    win32gui.SendMessage(hwnd, win32con.WM_NCLBUTTONDOWN, win32con.HTCAPTION, 0)
+   btn_w = 40
+   spacing = imgui.get_style().item_spacing.x
+   right_x = imgui.get_window_width() - (btn_w * 3 + spacing * 2 + 10)
+   imgui.same_line(right_x)
+   if imgui.button("_", (btn_w, 20)):
+    win32gui.ShowWindow(hwnd, win32con.SW_MINIMIZE)
+   imgui.same_line()
+   if imgui.button("[]", (btn_w, 20)):
+    win32gui.ShowWindow(hwnd, win32con.SW_MAXIMIZE)
+   imgui.same_line()
+   if imgui.button("X", (btn_w, 20)):
+    win32gui.PostMessage(hwnd, win32con.WM_CLOSE, 0, 0)
+   imgui.end()
+  imgui.pop_style_var(3)
+
  def _gui_func(self) -> None:
+  self._render_custom_title_bar()
   pushed_prior_tint = False
   # Render background shader
   bg = bg_shader.get_bg()
@@ -3928,6 +3963,7 @@ def hello():
    theme.load_from_config(self.config)
    self.runner_params = hello_imgui.RunnerParams()
    self.runner_params.app_window_params.window_title = "manual slop"
+   self.runner_params.app_window_params.borderless = True
    self.runner_params.app_window_params.window_geometry.size = (1680, 1200)
    self.runner_params.imgui_window_params.enable_viewports = getattr(self, "ui_multi_viewport", False)
    self.runner_params.imgui_window_params.remember_theme = True

tests/test_gui_window_controls.py

@@ -0,0 +1,31 @@
+import pytest
+from unittest.mock import patch, MagicMock
+from imgui_bundle import imgui
+
+def test_gui_window_controls_minimize_maximize_close():
+ # We will test the logic of the title bar controls that we are about to implement.
+ from src.gui_2 import App
+ app = App()
+ 
+ with patch("src.gui_2.win32gui") as mock_win32gui, \
+      patch("src.gui_2.win32con") as mock_win32con, \
+      patch("src.gui_2.imgui") as mock_imgui:
+  
+  # Setup mock for HWND
+  mock_viewport = MagicMock()
+  mock_viewport.platform_handle = 12345
+  mock_imgui.get_main_viewport.return_value = mock_viewport
+  
+  # Setup mock for buttons to simulate clicks
+  # Let's say _render_custom_title_bar uses imgui.button
+  # We will test the close button logic
+  # Since it's UI code, we just simulate the conditions
+  mock_imgui.button.return_value = True # Simulate all buttons being clicked
+  
+  # Call the method (to be implemented)
+  app._render_custom_title_bar()
+  
+  # Verify that win32gui calls are made for minimize, maximize, close
+  # Since all buttons returned True, all actions should be triggered in this dummy test
+  assert mock_win32gui.ShowWindow.called
+  assert mock_win32gui.PostMessage.called