[witray] Replace currently running system tray at startup.

cmd/tray/dat.h

@@ -51,6 +51,8 @@ struct Selection {
 	void	(*cleanup)(Selection*);
 	void	(*message)(Selection*, XClientMessageEvent*);
 	void	(*request)(Selection*, XSelectionRequestEvent*);
+	long	timer;
+	ulong	oldowner;
 };
 
 struct XEmbed {

cmd/tray/main.c

@@ -69,6 +69,8 @@ cleanup(Selection *s) {
 
 	while(tray.clients)
 		client_disown(tray.clients);
+	tray.selection = nil;
+	srv.running = false;
 }
 
 void
@@ -181,6 +183,8 @@ main(int argc, char *argv[]) {
 					  event_xtime, message, cleanup);
 	if(tray.selection == nil)
 		fatal("Another system tray is already running.");
+	if(tray.selection->oldowner)
+		print("Replacing currently running system tray.\n");
 
 	xext_init();
 	tray_init();
@@ -198,7 +202,8 @@ main(int argc, char *argv[]) {
 	srv.running = true;
 	ixp_serverloop(&srv);
 
-	selection_release(tray.selection);
+	if(tray.selection)
+		selection_release(tray.selection);
 
 	XCloseDisplay(display);
 

cmd/tray/selection.c

@@ -5,6 +5,7 @@
 #include "fns.h"
 
 static Handlers selection_handlers;
+static Handlers steal_handlers;
 
 Selection*
 selection_create(char *selection, ulong time,
@@ -47,20 +48,51 @@ selection_create(char *selection, ulong time,
 	return s;
 }
 
+static void
+_selection_manage(Selection *s) {
+
+	Dprint("[selection] Notifying.\n");
+	clientmessage(&scr.root, "MANAGER", SubstructureNotifyMask|StructureNotifyMask, 32,
+		      (ClientMessageData){ .l = {s->time_start, xatom(s->selection), s->owner->xid} });
+}
+
+static void
+timeout(long timer, void *v) {
+	Selection *s;
+
+	s = v;
+	Dprint("[selection] Done waiting. Killing 0x%ulx.\n", s->oldowner);
+	s->timer = 0;
+	XKillClient(display, s->oldowner);
+	sync();
+}
+
 Selection*
 selection_manage(char *selection, ulong time,
 		 void (*message)(Selection*, XClientMessageEvent*),
 		 void (*cleanup)(Selection*)) {
 	Selection *s;
+	Window *w;
+	XWindow old;
 
-	if(XGetSelectionOwner(display, xatom(selection)) != None)
+	if((old = XGetSelectionOwner(display, xatom(selection)))) {
-		return nil;
+		w = emallocz(sizeof *w);
+		w->type = WWindow;
+		w->xid = old;
+		selectinput(w, StructureNotifyMask);
+	}
 
 	s = selection_create(selection, time, nil, cleanup);
 	if(s) {
 		s->message = message;
-		clientmessage(&scr.root, "MANAGER", SubstructureNotifyMask|StructureNotifyMask, 32,
+		s->oldowner = old;
-			      (ClientMessageData){ .l = {time, xatom(selection), s->owner->xid} });
+		if(!old)
+			_selection_manage(s);
+		else {
+			Dprint("[selection] Waiting for old owner %W to die...\n", w);
+			pushhandler(w, &steal_handlers, s);
+			s->timer = ixp_settimer(&srv, 2000, timeout, s);
+		}
 	}
 
 	return s;
@@ -70,9 +102,9 @@ void
 selection_release(Selection *s) {
 	if(!s->time_end)
 		XSetSelectionOwner(display, xatom(s->selection), None, s->time_start);
-	destroywindow(s->owner);
 	if(s->cleanup)
 		s->cleanup(s);
+	destroywindow(s->owner);
 	free(s->selection);
 	free(s);
 }
@@ -106,6 +138,7 @@ selectionclear_event(Window *w, void *aux, XSelectionClearEvent *ev) {
 	Selection *s;
 
 	USED(w, ev);
+	Dprint("[selection] Lost selection\n");
 	s = aux;
 	s->time_end = ev->time;
 	selection_release(s);
@@ -120,6 +153,7 @@ selectionrequest_event(Window *w, void *aux, XSelectionRequestEvent *ev) {
 	if(ev->property == None)
 		ev->property = ev->target; /* Per ICCCM §2.2. */
 
+	Dprint("[selection] Request: %A\n", ev->target);
 	if(ev->target == xatom("TIMESTAMP")) {
 		/* Per ICCCM §2.6.2. */
 		changeprop_ulong(window(ev->requestor),
@@ -142,3 +176,21 @@ static Handlers selection_handlers = {
 	.selectionrequest = selectionrequest_event,
 };
 
+static bool
+destroy_event(Window *w, void *aux, XDestroyWindowEvent *e) {
+	Selection *s;
+
+	Dprint("[selection] Old owner is dead.\n");
+	s = aux;
+	if(s->timer)
+		ixp_unsettimer(&srv, s->timer);
+	s->timer = 0;
+	s->oldowner = 0;
+	_selection_manage(s);
+	return false;
+}
+
+static Handlers steal_handlers = {
+	.destroy = destroy_event,
+};
+

cmd/wmii/frame.c

@@ -348,8 +348,8 @@ frame_resize(Frame *f, Rectangle r) {
 		           || Dy(r) == 0 && (!f->area->max || resizing)
 			      && !f->collapsed)) {
 		fprint(2, "Frame rect: %R\n", r);
-		r.max.x = min(r.min.x+1, r.max.x);
+		r.max.x = max(r.min.x+1, r.max.x);
-		r.max.y = min(r.min.y+1, r.max.y);
+		r.max.y = max(r.min.y+1, r.max.y);
 	}
 
 	c = f->client;

cmd/wmii/key.c

@@ -129,7 +129,7 @@ next_keystroke(ulong *mod, KeyCode *code) {
 	do {
 		XMaskEvent(display, KeyPressMask, &e);
 		*mod |= e.xkey.state & valid_mask;
-		*code = (KeyCode) e.xkey.keycode;
+		*code = (KeyCode)e.xkey.keycode;
 		sym = XKeycodeToKeysym(display, e.xkey.keycode, 0);
 	} while(IsModifierKey(sym));
 }
@@ -143,7 +143,7 @@ fake_keypress(ulong mod, KeyCode key) {
 	if(c == nil || c->w.xid == 0)
 		return;
 
-	e.time = CurrentTime;
+	e.time = event_xtime;
 	e.window = c->w.xid;
 	e.state = mod;
 	e.keycode = key;