fix: shutdown moved to standard functionality

lib/bds/desktop/main_window.ex

@@ -6,16 +6,24 @@ defmodule BDS.Desktop.MainWindow do
   alias Desktop.Window
 
   @window_id __MODULE__
+  @server_name BDS.Desktop.MainWindow.Watcher
   @persist_interval_ms 1_000
   @default_size {1280, 780}
   @default_min_size {800, 600}
   @state_file "window-state.json"
 
   def start_link(_opts) do
-    GenServer.start_link(__MODULE__, :ok)
+    GenServer.start_link(__MODULE__, :ok, name: @server_name)
   end
 
   def window_id, do: @window_id
+  def server_name, do: @server_name
+
+  def persist_now(timeout \\ 100) do
+    GenServer.call(@server_name, :persist_bounds_now, timeout)
+  catch
+    :exit, _reason -> :ok
+  end
 
   def window_options(extra_opts \\ []) do
     desktop_config = Application.get_env(:bds, :desktop, [])
@@ -90,6 +98,11 @@ defmodule BDS.Desktop.MainWindow do
     {:noreply, %{state | last_bounds: next_bounds}}
   end
 
+  @impl true
+  def handle_call(:persist_bounds_now, _from, state) do
+    {:reply, :ok, persist_current_bounds(state)}
+  end
+
   @impl true
   def terminate(_reason, %{last_bounds: last_bounds}) do
     if bounds = last_bounds do
@@ -103,6 +116,16 @@ defmodule BDS.Desktop.MainWindow do
     Process.send_after(self(), :persist_bounds, @persist_interval_ms)
   end
 
+  defp persist_current_bounds(%{frame: frame} = state) do
+    next_bounds = current_bounds(frame) || state.last_bounds
+
+    if next_bounds do
+      _ = persist_bounds(next_bounds)
+    end
+
+    %{state | last_bounds: next_bounds}
+  end
+
   defp apply_restored_bounds(frame) do
     case restore_bounds() do
       %{x: x, y: y, width: width, height: height} ->
@@ -127,23 +150,30 @@ defmodule BDS.Desktop.MainWindow do
   defp current_bounds(nil), do: nil
 
   defp current_bounds(frame) do
-    with_wx_env(fn ->
-      cond do
-        not :wxWindow.isShown(frame) ->
-          nil
+    try do
+      with_wx_env(fn ->
+        cond do
+          not :wxWindow.isShown(frame) ->
+            nil
 
-        :wxTopLevelWindow.isFullScreen(frame) ->
-          nil
+          :wxTopLevelWindow.isFullScreen(frame) ->
+            nil
 
-        :wxTopLevelWindow.isMaximized(frame) ->
-          nil
+          :wxTopLevelWindow.isMaximized(frame) ->
+            nil
 
-        true ->
-          {x, y} = :wxWindow.getPosition(frame)
-          {width, height} = :wxWindow.getSize(frame)
-          %{x: x, y: y, width: width, height: height}
-      end
-    end)
+          true ->
+            {x, y} = :wxWindow.getPosition(frame)
+            {width, height} = :wxWindow.getSize(frame)
+            %{x: x, y: y, width: width, height: height}
+        end
+      end)
+    rescue
+      ErlangError -> nil
+      FunctionClauseError -> nil
+    catch
+      :exit, _reason -> nil
+    end
   end
 
   defp with_wx_env(fun) do

lib/bds/desktop/shutdown.ex

@@ -4,8 +4,6 @@ defmodule BDS.Desktop.Shutdown do
   alias BDS.Desktop.MainWindow
   alias Desktop.Window
 
-  @stop_delay_ms 100
-
   @spec install_handlers(term()) :: :ok
   def install_handlers(frame) do
     :wx.set_env(Desktop.Env.wx_env())
@@ -17,13 +15,6 @@ defmodule BDS.Desktop.Shutdown do
       userData: self()
     )
 
-    _ = :wxFrame.disconnect(frame, :command_menu_selected, id: Desktop.Wx.wxID_EXIT())
-
-    :wxFrame.connect(frame, :command_menu_selected,
-      id: Desktop.Wx.wxID_EXIT(),
-      callback: &__MODULE__.command_menu_selected/2
-    )
-
     :ok
   rescue
     _error -> :ok
@@ -51,42 +42,16 @@ defmodule BDS.Desktop.Shutdown do
     request_quit()
   end
 
-  @spec command_menu_selected(tuple(), term()) :: :ok
-  def command_menu_selected(_event, _command_event) do
-    request_quit()
-  end
-
   defp start_shutdown_task do
     Task.start(fn ->
-      close_main_window()
-      Process.sleep(@stop_delay_ms)
-      System.stop(0)
+      MainWindow.persist_now()
+      quit_module().quit()
     end)
 
     :ok
   end
 
-  defp close_main_window do
-    with frame when not is_nil(frame) <- main_frame() do
-      :wx.set_env(Desktop.Env.wx_env())
-
-      if :wxWindow.isShown(frame) do
-        :wxWindow.hide(frame)
-      end
-
-      :wxWindow.destroy(frame)
-    else
-      _other -> :ok
-    end
-  rescue
-    _error -> :ok
-  catch
-    :exit, _reason -> :ok
-  end
-
-  defp main_frame do
-    Window.frame(MainWindow.window_id())
-  catch
-    :exit, _reason -> nil
+  defp quit_module do
+    Application.get_env(:bds, :desktop_window_quit_module, Window)
   end
 end

test/bds/desktop/main_window_test.exs

@@ -44,6 +44,11 @@ defmodule BDS.Desktop.MainWindowTest do
     assert MainWindow.restore_bounds() == %{x: 120, y: 80, width: 1260, height: 820}
   end
 
+  test "window id and watcher process name do not collide" do
+    assert MainWindow.window_id() == BDS.Desktop.MainWindow
+    assert MainWindow.server_name() == BDS.Desktop.MainWindow.Watcher
+  end
+
   test "window options clamp oversized startup bounds to the visible client area" do
     desktop = Application.get_env(:bds, :desktop, [])
 
@@ -78,4 +83,22 @@ defmodule BDS.Desktop.MainWindowTest do
              "height" => 700
            }
   end
+
+  test "persist timer keeps last bounds when the wx frame is already gone", %{path: path} do
+    bounds = %{x: 166, y: 57, width: 1280, height: 780}
+
+    assert {:noreply, state} =
+             MainWindow.handle_info(:persist_bounds, %{
+               frame: :invalid_wx_frame,
+               last_bounds: bounds
+             })
+
+    assert state.last_bounds == bounds
+
+    refute File.exists?(path)
+  end
+
+  test "persist now is harmless when the window watcher is not running" do
+    assert :ok = MainWindow.persist_now()
+  end
 end

test/bds/desktop_test.exs

@@ -10,6 +10,13 @@ defmodule BDS.DesktopTest do
     end
   end
 
+  defmodule FakeWindowQuit do
+    def quit do
+      send(Application.fetch_env!(:bds, :desktop_shutdown_test_pid), :window_quit_requested)
+      :ok
+    end
+  end
+
   test "desktop configuration no longer uses a pending adapter" do
     assert Application.get_env(:bds, BDS.Application)[:desktop_adapter] == :desktop
   end
@@ -138,6 +145,29 @@ defmodule BDS.DesktopTest do
     assert_receive :quit_requested
   end
 
+  test "cmd-q remains handled by the desktop window quit handler" do
+    refute function_exported?(BDS.Desktop.Shutdown, :command_menu_selected, 2)
+  end
+
+  test "app-owned shutdown delegates final termination to the desktop hard quit path" do
+    previous_module = Application.get_env(:bds, :desktop_shutdown_module)
+    previous_quit_module = Application.get_env(:bds, :desktop_window_quit_module)
+    previous_pid = Application.get_env(:bds, :desktop_shutdown_test_pid)
+
+    Application.put_env(:bds, :desktop_shutdown_module, BDS.Desktop.Shutdown)
+    Application.put_env(:bds, :desktop_window_quit_module, FakeWindowQuit)
+    Application.put_env(:bds, :desktop_shutdown_test_pid, self())
+
+    on_exit(fn ->
+      restore_env(:desktop_shutdown_module, previous_module)
+      restore_env(:desktop_window_quit_module, previous_quit_module)
+      restore_env(:desktop_shutdown_test_pid, previous_pid)
+    end)
+
+    assert :ok = BDS.Desktop.Shutdown.request_quit()
+    assert_receive :window_quit_requested
+  end
+
   test "desktop root html is a LiveView shell and references only the live bootstrap assets" do
     conn = conn(:get, "/?k=#{Desktop.Auth.login_key()}")
     conn = BDS.Desktop.Endpoint.call(conn, BDS.Desktop.Endpoint.init([]))