build-aux/share/portproton/scripts/functions_helper

@@ -3770,10 +3770,12 @@ pw_run () {
             echo "Log WINE:" >> "${PW_LOG_FILE}"
             echo ""
             print_info "Log from RUNTIME and WINE:"
+            pw_launch_wrapper \
             ${PW_RUN_GAMESCOPE} \
             ${PW_INHIBIT_SLR} \
             ${PW_TASKSET_SLR} \
             ${pw_runtime} \
+            env \
             LD_LIBRARY_PATH="${PW_LD_LIBRARY_PATH}" \
             LD_PRELOAD="${PW_LD_PRELOAD}" \
             VK_ADD_IMPLICIT_LAYER_PATH="${PW_VK_LAYER_PATH}" \
@@ -3788,10 +3790,12 @@ pw_run () {
             fi
             echo ""
             echo "Log WINE:" > "${PW_LOG_FILE}"
+            pw_launch_wrapper \
             ${PW_RUN_GAMESCOPE} \
             ${PW_INHIBIT_SLR} \
             ${PW_TASKSET_SLR} \
             ${pw_runtime} \
+            env \
             LD_LIBRARY_PATH="${PW_LD_LIBRARY_PATH}" \
             LD_PRELOAD="${PW_LD_PRELOAD}" \
             VK_ADD_IMPLICIT_LAYER_PATH="${PW_VK_LAYER_PATH}" \
@@ -3816,6 +3820,7 @@ pw_run () {
             echo "Log WINE:" >> "${PW_LOG_FILE}"
             echo ""
             print_info "Log WINE:"
+            pw_launch_wrapper \
             env FAKE_VAR= \
             LD_LIBRARY_PATH="${PW_LD_LIBRARY_PATH}" \
             LD_PRELOAD="${PW_LD_PRELOAD}" \
@@ -3835,6 +3840,7 @@ pw_run () {
             echo ""
             echo "Log WINE:" > "${PW_LOG_FILE}"
             print_info "Log WINE:"
+            pw_launch_wrapper \
             env FAKE_VAR= \
             LD_LIBRARY_PATH="${PW_LD_LIBRARY_PATH}" \
             LD_PRELOAD="${PW_LD_PRELOAD}" \
@@ -3853,6 +3859,39 @@ pw_run () {
 }
 export -f pw_run
 
+pw_launch_wrapper () {
+    if [[ -z "${PW_RUN_AFTER_EXE:-}" ]] ; then
+        "$@"
+        return
+    fi
+
+    if [[ -f "${PW_RUN_AFTER_EXE}" ]] ; then
+        if [[ "${PW_RUN_AFTER_EXE,,}" =~ \.exe$ ]] ; then
+            "$@"
+            return
+        fi
+        "${PW_RUN_AFTER_EXE}"
+        "$@"
+        return
+    fi
+
+    local -a wrapper_cmd
+    eval "wrapper_cmd=(${PW_RUN_AFTER_EXE})"
+    if [[ ${#wrapper_cmd[@]} -eq 0 ]] ; then
+        "$@"
+        return
+    fi
+
+    if [[ "${wrapper_cmd[0]##*/}" == "systemd-run" ]] ; then
+        "${wrapper_cmd[@]}" -- "$@"
+        return
+    fi
+
+    "${wrapper_cmd[@]}"
+    "$@"
+}
+export -f pw_launch_wrapper
+
 steamplay_launch () {
     pw_check_and_download_plugins
 
@@ -3969,6 +4008,7 @@ steamplay_launch () {
         fi
 
         print_info "$proton_runner in use."
+        pw_launch_wrapper \
         ${PW_RUN_GAMESCOPE} \
         env \
         LD_LIBRARY_PATH="${steamplay_ld_library_path}" \
@@ -4012,6 +4052,7 @@ portwine_launch () {
     else
         if [[ -n "${PW_RUN_AFTER_EXE:-}" ]] \
         && [[ -f "${PW_RUN_AFTER_EXE}" ]] \
+        && [[ "${PW_RUN_AFTER_EXE,,}" =~ \.exe$ ]] \
         && [[ "${PW_RUN_AFTER_EXE}" != "${PW_EXE_FILE}" ]] \
         && [[ "${PW_EXE_FILE,,}" =~ \.exe$ ]]
         then

portprotonqt/dialogs/settings_dialog.py

@@ -91,6 +91,11 @@ def _normalize_prefix_directories(prefixes_dir):
             logger.warning("Failed to rename prefix %s: %s", prefix_name, exc)
 
 
+def _format_setting_value_for_display(value: str) -> str:
+    """Hide shell-escaped quotes in GUI fields."""
+    return value.replace('\\"', '"')
+
+
 def _get_numa_nodes() -> dict[str, str]:
     """Read NUMA nodes from lscpu output."""
     try:
@@ -247,11 +252,25 @@ class ExeSettingsDialog(DraggableDialog, MangoHudSettingsMixin, GamescopeSetting
         normalized = os.path.normpath(os.path.expanduser(exe_path))
         if os.path.isabs(normalized):
             return normalized
+        if " " in exe_path:
+            return exe_path
         game_dir = os.path.dirname(self.exe_path or "")
         if not game_dir:
             return normalized
         return os.path.normpath(os.path.join(game_dir, normalized))
 
+    def _get_setting_file_selector_path(self, current_path: str) -> str:
+        """Get initial path for setting file selectors."""
+        initial_path = os.path.expanduser("~")
+        if not current_path:
+            return initial_path
+        normalized = self._resolve_run_after_exe_path(current_path)
+        if os.path.isfile(normalized):
+            return os.path.dirname(normalized)
+        if os.path.isdir(normalized):
+            return normalized
+        return initial_path
+
     def setup_ui(self):
         """Set up the user interface."""
         self.main_layout = QVBoxLayout(self)
@@ -451,6 +470,7 @@ class ExeSettingsDialog(DraggableDialog, MangoHudSettingsMixin, GamescopeSetting
                         ):
                             if val.startswith('"') and val.endswith('"') and len(val) >= 2:
                                 val = val[1:-1]
+                            val = _format_setting_value_for_display(val)
                             self.current_settings[key] = val
                     except ValueError:
                         continue
@@ -736,23 +756,20 @@ class ExeSettingsDialog(DraggableDialog, MangoHudSettingsMixin, GamescopeSetting
                         browse_button.setEnabled(False)
 
                     def open_run_after_exe_selector(
-                        _checked: bool = False, target_line_edit=line_edit
+                        _checked: bool = False,
+                        target_line_edit=line_edit,
+                        file_filter="",
                     ):
                         from portprotonqt.dialogs.file_explorer import FileExplorer
 
-                        initial_path = os.path.expanduser("~")
-                        current_path = target_line_edit.text().strip()
-                        if current_path:
-                            normalized = self._resolve_run_after_exe_path(current_path)
-                            if os.path.isfile(normalized):
-                                initial_path = os.path.dirname(normalized)
-                            elif os.path.isdir(normalized):
-                                initial_path = normalized
+                        initial_path = self._get_setting_file_selector_path(
+                            target_line_edit.text().strip()
+                        )
 
                         file_explorer = FileExplorer(
                             self,
                             theme=self.theme,
-                            file_filter=".exe",
+                            file_filter=file_filter,
                             initial_path=initial_path,
                         )
                         file_explorer.file_signal.file_selected.connect(

portprotonqt/settings_manager.py

@@ -253,11 +253,11 @@ def get_advanced_settings(disabled_text, logical_core_options=None, locale_optio
         'default': ''
     })
 
-    # 7. Run second executable after launch
+    # 7. Run second executable or wrapper command
     advanced_settings.append({
         'key': 'PW_RUN_AFTER_EXE',
-        'name': _("Run After Exe"),
-        'description': _("Path to a second .exe that should be started after the main executable."),
+        'name': _("Run After / Wrapper"),
+        'description': _("Path to a second .exe, script, or wrapper command. Example: systemd-run --user --scope --slice=app.slice"),
         'type': 'text',
         'default': ''
     })