wm

commit 23e6353cbaf1098914016eb4f0770a07e498ebe4
parent 54d6a6bb00d5f176e6d0a7ab5d00da52b40fa74b
Author: Pablo Cárdenas <pablo.cardenas@imca.edu.pe>
Date:   Tue,  7 Jan 2025 21:15:13 -0500

Support for WM_TAKE_FOCUS

Diffstat:
M
pwm.c
 | 
87
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------

1 file changed, 68 insertions(+), 19 deletions(-)
diff --git a/pwm.c b/pwm.c
@@ -53,7 +53,7 @@ int main(void)
 	}
 
 	Window root = DefaultRootWindow(dpy);
-	printf("root = %lx\n", root);
+	printf("root = 0x%lx\n", root);
 
 	XSelectInput(dpy, root, SubstructureRedirectMask | SubstructureNotifyMask | ButtonPressMask | PointerMotionMask | EnterWindowMask | LeaveWindowMask | StructureNotifyMask | PropertyChangeMask);
 	XGrabKey(dpy, XKeysymToKeycode(dpy, XStringToKeysym("j")), Mod4Mask, root, True, GrabModeAsync, GrabModeAsync);
@@ -191,12 +191,59 @@ int main(void)
 				XSetInputFocus(dpy, windows[current_index], RevertToParent, CurrentTime);
 				XRaiseWindow(dpy, windows[current_index]);
 				XSetWindowBorder(dpy, windows[current_index], 0xAAAAAA);
+
+				// Send WM_TAKE_FOCUS if supported
+				Atom *protocols;
+				int n;
+				int supported = 0;
+				if (XGetWMProtocols(dpy, windows[current_index], &protocols, &n)) {
+					while (!supported && n--) {
+						supported = XInternAtom(dpy, "WM_TAKE_FOCUS", False) == protocols[n];
+					}
+					XFree(protocols);
+				}
+				printf("supported WM_TAKE_FOCUS = %d\n", exists);
+				if (supported) {
+					XClientMessageEvent send_ev = {
+						.type = ClientMessage,
+						.window = windows[current_index],
+						.message_type = XInternAtom(dpy, "WM_PROTOCOLS", False),
+						.format = 32,
+						.data.l[0] = XInternAtom(dpy, "WM_TAKE_FOCUS", False),
+						.data.l[1] = CurrentTime,
+					};
+					XSendEvent(dpy, windows[current_index], False, NoEventMask, (XEvent *)&send_ev);
+				}
+
 			} else if (ev.xkey.keycode == XKeysymToKeycode(dpy, XStringToKeysym("k"))) {
 				XSetWindowBorder(dpy, windows[current_index], BORDER_COLOR);
 				current_index = (current_index + 1) % num_windows;
 				XSetInputFocus(dpy, windows[current_index], RevertToParent, CurrentTime);
 				XRaiseWindow(dpy, windows[current_index]);
 				XSetWindowBorder(dpy, windows[current_index], 0xAAAAAA);
+
+				// Send WM_TAKE_FOCUS if supported
+				Atom *protocols;
+				int n;
+				int supported = 0;
+				if (XGetWMProtocols(dpy, windows[current_index], &protocols, &n)) {
+					while (!supported && n--) {
+						supported = XInternAtom(dpy, "WM_TAKE_FOCUS", False) == protocols[n];
+					}
+					XFree(protocols);
+				}
+				printf("supported WM_TAKE_FOCUS = %d\n", exists);
+				if (supported) {
+					XClientMessageEvent send_ev = {
+						.type = ClientMessage,
+						.window = windows[current_index],
+						.message_type = XInternAtom(dpy, "WM_PROTOCOLS", False),
+						.format = 32,
+						.data.l[0] = XInternAtom(dpy, "WM_TAKE_FOCUS", False),
+						.data.l[1] = CurrentTime,
+					};
+					XSendEvent(dpy, windows[current_index], False, NoEventMask, (XEvent *)&send_ev);
+				}
 			} else if (ev.xkey.keycode == XKeysymToKeycode(dpy, XStringToKeysym("c"))) {
 				if (wmcheckwin) {
 					XDestroyWindow(dpy, wmcheckwin);
@@ -251,28 +298,29 @@ int main(void)
 				}
 
 			} else if (ev.xkey.keycode == XKeysymToKeycode(dpy, XStringToKeysym("q"))) {
-				// TODO: Only send event If the window supports  (XGetWMProtocols)
+				// Send WM_TAKE_DELETE if supported
 				Atom *protocols;
 				int n;
-				int exists = 0;
+				int supported = 0;
 				if (XGetWMProtocols(dpy, windows[current_index], &protocols, &n)) {
-					while (!exists && n--) {
-						printf("protocols[%d] = %s\n", n, XGetAtomName(dpy, protocols[n]));
-						exists = XInternAtom(dpy, "WM_DELETE_WINDOW", False) == protocols[n];
+					while (!supported && n--) {
+						supported = XInternAtom(dpy, "WM_DELETE_WINDOW", False) == protocols[n];
 					}
 					XFree(protocols);
 				}
-				printf("exists = %d\n", exists);
+				printf("supported WM_DELETE_WINDOW = %d\n", exists);
 
-				XClientMessageEvent send_ev = {
-					.type = ClientMessage,
-					.window = windows[current_index],
-					.message_type = XInternAtom(dpy, "WM_PROTOCOLS", False),
-					.format = 32,
-					.data.l[0] = XInternAtom(dpy, "WM_DELETE_WINDOW", False),
-					.data.l[1] = CurrentTime,
-				};
-				XSendEvent(dpy, windows[current_index], False, NoEventMask, (XEvent *)&send_ev);
+				if (supported) {
+					XClientMessageEvent send_ev = {
+						.type = ClientMessage,
+						.window = windows[current_index],
+						.message_type = XInternAtom(dpy, "WM_PROTOCOLS", False),
+						.format = 32,
+						.data.l[0] = XInternAtom(dpy, "WM_DELETE_WINDOW", False),
+						.data.l[1] = CurrentTime,
+					};
+					XSendEvent(dpy, windows[current_index], False, NoEventMask, (XEvent *)&send_ev);
+				}
 			} else if (ev.xkey.keycode == XKeysymToKeycode(dpy, XStringToKeysym("Return"))) {
 				char *const cmd_argv[] = {"st", NULL};
 				spawn(cmd_argv, dpy);
@@ -305,8 +353,9 @@ int main(void)
 			break;
 		case PropertyNotify:
 			fprintf(stderr,
-				"%d: PropertyNotify : ev.xproperty.atom = %ld: %s : ev.xproperty.state = %d\n",
+				"%d: PropertyNotify : window = 0x%lx, ev.xproperty.atom = %ld: %s : ev.xproperty.state = %d\n",
 				ev.type,
+				ev.xproperty.window,
 				ev.xproperty.atom,
 				XGetAtomName(dpy, ev.xproperty.atom),
 				ev.xproperty.state);
@@ -324,10 +373,10 @@ int main(void)
 			XConfigureWindow(dpy, ev.xconfigurerequest.window, ev.xconfigurerequest.value_mask, &wc);
 			break;
 		case CreateNotify:
-			fprintf(stderr, "ev.type = %2d = CreateNotify, window = %lx\n", ev.type, ev.xcreatewindow.window);
+			fprintf(stderr, "ev.type = %2d = CreateNotify, window = 0x%lx\n", ev.type, ev.xcreatewindow.window);
 			break;
 		case DestroyNotify:
-			fprintf(stderr, "ev.type = %2d = DestroyNotify, window = %lx\n", ev.type, ev.xdestroywindow.window);
+			fprintf(stderr, "ev.type = %2d = DestroyNotify, window = 0x%lx\n", ev.type, ev.xdestroywindow.window);
 			break;
 		default:
 			fprintf(stderr, "ev.type = %2d ", ev.type);