Rémi Bernon : explorer: Restore a per-desktop ShowSystray registry setting.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 852c4d0a8a39da4df72358d6e30773a93bc8778d
URL:    https://gitlab.winehq.org/wine/wine/-/commit/852c4d0a8a39da4df72358d6e30773a...

Author: Rémi Bernon <rbernon(a)codeweavers.com>
Date:   Mon Jan 29 12:02:14 2024 +0100

explorer: Restore a per-desktop ShowSystray registry setting.

With a global fallback setting under HKCU\Software\Wine\Explorer.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56243

---

 programs/explorer/desktop.c          | 37 ++++++++++++++++++++++++++++++++----
 programs/explorer/explorer_private.h |  2 +-
 programs/explorer/systray.c          |  4 +++-
 3 files changed, 37 insertions(+), 6 deletions(-)

diff --git a/programs/explorer/desktop.c b/programs/explorer/desktop.c
index 9a58f13d887..65a89862190 100644
--- a/programs/explorer/desktop.c
+++ b/programs/explorer/desktop.c
@@ -841,6 +841,35 @@ static BOOL get_default_enable_shell( const WCHAR *name )
     return result;
 }
 
+static BOOL get_default_show_systray( const WCHAR *name )
+{
+    HKEY hkey;
+    BOOL found = FALSE;
+    BOOL result;
+    DWORD size = sizeof(result);
+
+    /* @@ Wine registry key: HKCU\Software\Wine\Explorer\Desktops */
+    if (name && !RegOpenKeyW( HKEY_CURRENT_USER, L"Software\\Wine\\Explorer\\Desktops", &hkey ))
+    {
+        if (!RegGetValueW( hkey, name, L"ShowSystray", RRF_RT_REG_DWORD, NULL, &result, &size ))
+            found = TRUE;
+        RegCloseKey( hkey );
+    }
+
+    /* Try again with a global Explorer setting */
+    /* @@ Wine registry key: HKCU\Software\Wine\Explorer */
+    if (!found && !RegOpenKeyW( HKEY_CURRENT_USER, L"Software\\Wine\\Explorer", &hkey ))
+    {
+        if (!RegGetValueW( hkey, NULL, L"ShowSystray", RRF_RT_REG_DWORD, NULL, &result, &size ))
+            found = TRUE;
+        RegCloseKey( hkey );
+    }
+
+    /* Default on */
+    if (!found) result = TRUE;
+    return result;
+}
+
 static void load_graphics_driver( const WCHAR *driver, GUID *guid )
 {
     static const WCHAR device_keyW[] = L"System\\CurrentControlSet\\Control\\Video\\{%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}\\0000";
@@ -1020,7 +1049,7 @@ void manage_desktop( WCHAR *arg )
     WCHAR *cmdline = NULL, *driver = NULL;
     WCHAR *p = arg;
     const WCHAR *name = NULL;
-    BOOL enable_shell = FALSE;
+    BOOL enable_shell = FALSE, show_systray = TRUE;
     void (WINAPI *pShellDDEInit)( BOOL ) = NULL;
     HMODULE shell32;
     HANDLE thread;
@@ -1054,8 +1083,8 @@ void manage_desktop( WCHAR *arg )
         if (!get_default_desktop_size( name, &width, &height )) width = height = 0;
     }
 
-    if (name)
-        enable_shell = get_default_enable_shell( name );
+    if (name) enable_shell = get_default_enable_shell( name );
+    show_systray = get_default_show_systray( name );
 
     UuidCreate( &guid );
     TRACE( "display guid %s\n", debugstr_guid(&guid) );
@@ -1101,7 +1130,7 @@ void manage_desktop( WCHAR *arg )
 
         if (using_root) enable_shell = FALSE;
 
-        initialize_systray( using_root, enable_shell );
+        initialize_systray( using_root, enable_shell, show_systray );
         if (!using_root) initialize_launchers( hwnd );
 
         if ((shell32 = LoadLibraryW( L"shell32.dll" )) &&
diff --git a/programs/explorer/explorer_private.h b/programs/explorer/explorer_private.h
index 34aa1cf046b..0639e41c9c6 100644
--- a/programs/explorer/explorer_private.h
+++ b/programs/explorer/explorer_private.h
@@ -22,7 +22,7 @@
 #define __WINE_EXPLORER_PRIVATE_H
 
 extern void manage_desktop( WCHAR *arg );
-extern void initialize_systray( BOOL using_root, BOOL enable_shell );
+extern void initialize_systray( BOOL using_root, BOOL enable_shell, BOOL show_systray );
 extern void initialize_appbar(void);
 extern void handle_parent_notify( HWND hwnd, WPARAM wp );
 extern void do_startmenu( HWND owner );
diff --git a/programs/explorer/systray.c b/programs/explorer/systray.c
index b012d3ffe72..3b4e5bdc8ac 100644
--- a/programs/explorer/systray.c
+++ b/programs/explorer/systray.c
@@ -249,6 +249,7 @@ static void balloon_create_timer( struct icon *icon )
 
 static BOOL show_balloon( struct icon *icon )
 {
+    if (!show_systray) return FALSE;  /* systray has been hidden */
     if (icon->display == ICON_DISPLAY_HIDDEN) return FALSE;  /* not displayed */
     if (!icon->info_text[0]) return FALSE;  /* no balloon */
     balloon_icon = icon;
@@ -1114,7 +1115,7 @@ void handle_parent_notify( HWND hwnd, WPARAM wp )
 }
 
 /* this function creates the listener window */
-void initialize_systray( BOOL using_root, BOOL arg_enable_shell )
+void initialize_systray( BOOL using_root, BOOL arg_enable_shell, BOOL arg_show_systray )
 {
     RECT work_rect, primary_rect, taskbar_rect;
 
@@ -1125,6 +1126,7 @@ void initialize_systray( BOOL using_root, BOOL arg_enable_shell )
 
     icon_cx = GetSystemMetrics( SM_CXSMICON ) + 2*ICON_BORDER;
     icon_cy = GetSystemMetrics( SM_CYSMICON ) + 2*ICON_BORDER;
+    show_systray = arg_show_systray;
     enable_shell = arg_enable_shell;
     enable_taskbar = enable_shell || !using_root;