Added support for WindowMaker's WMFHideApplication action.

ChangeLog

@@ -1,3 +1,16 @@
+2019-04-05  Sergii Stoian  <stoyan255@gmail.com>
+
+	* Headers/x11/XGServerWindow.h (GSMaxWMProtocols): increased number to support
+	WMFHideApplication.
+	* Headers/x11/XGGeneric.h: Atoms _WINDOWMAKER_WM_FUNCTION, _GNUSTEP_WM_HIDE_APP
+	were added.
+
+	* Source/x11/XGServerWindow.m (_setSupportedWMProtocols:): added
+	_GNUSTEP_WM_HIDE_APP protocol suport to the window protocols.
+	(hidewindow:): implementation of GSDisplayServer method.
+	* Source/x11/XGServerEvent.m (processEvent:): process _GNUSTEP_WM_HIDE_APP
+	client message.
+
 2019-04-04  Sergii Stoian  <stoyan255@ukr.net>
 
 	* Source/x11/XGServerEvent.m (processEvent:):

Headers/x11/XGGeneric.h

@@ -104,8 +104,10 @@ static char *atom_names[] = {
   "_WINDOWMAKER_WM_PROTOCOLS",
   "_WINDOWMAKER_NOTICEBOARD",
   "_WINDOWMAKER_ICON_TILE",
+  "_WINDOWMAKER_WM_FUNCTION",
   "_RGBA_IMAGE",
   "_GNUSTEP_WM_MINIATURIZE_WINDOW",
+  "_GNUSTEP_WM_HIDE_APP",
   "_GNUSTEP_WM_ATTR",
   "_GNUSTEP_TITLEBAR_STATE",
   "_GNUSTEP_FRAME_OFFSETS",
@@ -177,12 +179,14 @@ static char *atom_names[] = {
 #define _WINDOWMAKER_WM_PROTOCOLS_ATOM         atoms[59]
 #define _WINDOWMAKER_NOTICEBOARD_ATOM          atoms[60]
 #define _WINDOWMAKER_ICON_TILE_ATOM            atoms[61]
-#define _RGBA_IMAGE_ATOM                       atoms[62]
+#define _WINDOWMAKER_WM_FUNCTION_ATOM          atoms[62]
-#define _GNUSTEP_WM_MINIATURIZE_WINDOW_ATOM    atoms[63]
+#define _RGBA_IMAGE_ATOM                       atoms[63]
-#define _GNUSTEP_WM_ATTR_ATOM                  atoms[64]
+#define _GNUSTEP_WM_MINIATURIZE_WINDOW_ATOM    atoms[64]
-#define _GNUSTEP_TITLEBAR_STATE_ATOM           atoms[65]
+#define _GNUSTEP_WM_HIDE_APP_ATOM              atoms[65]
-#define _GNUSTEP_FRAME_OFFSETS_ATOM            atoms[66]
+#define _GNUSTEP_WM_ATTR_ATOM                  atoms[66]
-#define WM_IGNORE_FOCUS_EVENTS_ATOM            atoms[67]
+#define _GNUSTEP_TITLEBAR_STATE_ATOM           atoms[67]
+#define _GNUSTEP_FRAME_OFFSETS_ATOM            atoms[68]
+#define WM_IGNORE_FOCUS_EVENTS_ATOM            atoms[69]
 
 /*
  * Frame offsets for window inside parent decoration window.

Headers/x11/XGServerWindow.h

@@ -72,7 +72,7 @@ typedef struct {
 #define WMFHideOtherApplications		10
 #define WMFHideApplication			12
 
-#define GSMaxWMProtocols 5
+#define GSMaxWMProtocols 6
 
 /* Graphics Driver protocol. Setup in [NSGraphicsContext-contextDevice:] */
 enum {

Source/x11/XGServerEvent.m

@@ -621,6 +621,21 @@ posixFileDescriptor: (NSPosixFileDescriptor*)fileDescriptor
                                data1: 0
                                data2: 0];
                 }
+              else if ((Atom)xEvent.xclient.data.l[0]
+                       == generic._GNUSTEP_WM_HIDE_APP_ATOM)
+                {
+                  NSDebugLLog(@"Hide", @"%lu application will be hidden", cWin->number);
+                  eventLocation = NSMakePoint(0,0);
+                  e = [NSEvent otherEventWithType: NSAppKitDefined
+                                         location: eventLocation
+                                    modifierFlags: 0
+                                        timestamp: 0
+                                     windowNumber: cWin->number
+                                          context: gcontext
+                                          subtype: GSAppKitAppHide
+                                            data1: 0
+                                            data2: 0];
+                }              
               else if ((Atom)xEvent.xclient.data.l[0]
                 == generic.WM_TAKE_FOCUS_ATOM)
                 {

Source/x11/XGServerWindow.m

@@ -1396,10 +1396,13 @@ _get_next_prop_new_event(Display *display, XEvent *event, char *arg)
       window->protocols[window->numProtocols++] = generic._NET_WM_SYNC_REQUEST_ATOM;
 #endif
     }
-  if ((generic.wm & XGWM_WINDOWMAKER) != 0
+  if ((generic.wm & XGWM_WINDOWMAKER) != 0)
-      && (window->win_attrs.window_style & NSMiniaturizableWindowMask) != 0)
     {
-      window->protocols[window->numProtocols++] = generic._GNUSTEP_WM_MINIATURIZE_WINDOW_ATOM;
+      if ((window->win_attrs.window_style & NSMiniaturizableWindowMask) != 0)
+        {
+          window->protocols[window->numProtocols++] = generic._GNUSTEP_WM_MINIATURIZE_WINDOW_ATOM;
+        }
+      window->protocols[window->numProtocols++] = generic._GNUSTEP_WM_HIDE_APP_ATOM;
     }
   NSAssert1(window->numProtocols <= GSMaxWMProtocols,
 	    @"Too many protocols (%d > GSMaxWMProtocols)",
@@ -2602,6 +2605,28 @@ _get_next_prop_new_event(Display *display, XEvent *event, char *arg)
     XIconifyWindow(dpy, window->ident, window->screen);
 }
 
+/* Actually this is "hide application" action.
+   However, key press may be received by particular window. */
+- (BOOL) hidewindow: (int)win
+{
+  gswindow_device_t *window;
+  
+  if ((generic.wm & XGWM_WINDOWMAKER) == 0)
+    return NO;
+    
+  window = [XGServer _windowWithTag: win];
+  [self _sendRoot: window->root
+             type: generic._WINDOWMAKER_WM_FUNCTION_ATOM
+           window: window->ident
+            data0: WMFHideApplication
+            data1: CurrentTime
+            data2: 0
+            data3: 0];
+  XSync(dpy, False);
+    
+  return YES;
+}
+
 /**
    Make sure we have the most up-to-date window information and then
    make sure the context has our new information