Automated update

KleinDwm/source/dwm.c

@@ -633,6 +633,7 @@ clientmessage(XEvent *e)
 	XSetWindowAttributes swa;
 	XClientMessageEvent *cme = &e->xclient;
 	Client *c = wintoclient(cme->window);
+	unsigned int i;
 
 	if (showsystray && cme->window == systray->win && cme->message_type == netatom[NetSystemTrayOP]) {
 		/* add systray icons */
@@ -689,8 +690,14 @@ clientmessage(XEvent *e)
 			setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD    */
 				|| cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */));
 	} else if (cme->message_type == netatom[NetActiveWindow]) {
-		if (c != selmon->sel && !c->isurgent)
-			seturgent(c, 1);
+		for (i = 0; i < LENGTH(tags) && !((1 << i) & c->tags); i++);
+		if (i < LENGTH(tags)) {
+			const Arg a = {.ui = 1 << i};
+			selmon = c->mon;
+			view(&a);
+			focus(c);
+			restack(selmon);
+		}
 	}
 }
 

KleinDwm/source/dwm.c.orig

@@ -33,6 +33,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
+#include <sys/epoll.h>
 #include <X11/cursorfont.h>
 #include <X11/keysym.h>
 #include <X11/Xatom.h>
@@ -86,9 +87,21 @@ enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms *
 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
        ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
 
+typedef struct TagState TagState;
+struct TagState {
+	int selected;
+	int occupied;
+	int urgent;
+};
+
+typedef struct ClientState ClientState;
+struct ClientState {
+	int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
+};
+
 typedef union {
-	int i;
-	unsigned int ui;
+	long i;
+	unsigned long ui;
 	float f;
 	const void *v;
 } Arg;
@@ -117,6 +130,7 @@ struct Client {
 	Client *snext;
 	Monitor *mon;
 	Window win;
+	ClientState prevstate;
 };
 
 typedef struct {
@@ -135,6 +149,7 @@ typedef struct {
 typedef struct Pertag Pertag;
 struct Monitor {
 	char ltsymbol[16];
+    char lastltsymbol[16];
 	float mfact;
 	int nmaster;
 	int num;
@@ -145,14 +160,17 @@ struct Monitor {
 	unsigned int seltags;
 	unsigned int sellt;
 	unsigned int tagset[2];
+    TagState tagstate;
 	int showbar;
 	int topbar;
 	Client *clients;
 	Client *sel;
+    Client *lastsel;
 	Client *stack;
 	Monitor *next;
 	Window barwin;
 	const Layout *lt[2];
+    const Layout *lastlt;
 	Pertag *pertag;
 };
 
@@ -211,6 +229,7 @@ static unsigned int getsystraywidth();
 static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
 static void grabbuttons(Client *c, int focused);
 static void grabkeys(void);
+static int handlexevent(struct epoll_event *ev);
 static void incnmaster(const Arg *arg);
 static void keypress(XEvent *e);
 static void killclient(const Arg *arg);
@@ -241,8 +260,10 @@ static void setclientstate(Client *c, long state);
 static void setfocus(Client *c);
 static void setfullscreen(Client *c, int fullscreen);
 static void setlayout(const Arg *arg);
+static void setlayoutsafe(const Arg *arg);
 static void setmfact(const Arg *arg);
 static void setup(void);
+static void setupepoll(void);
 static void seturgent(Client *c, int urg);
 static void showhide(Client *c);
 static void sigchld(int unused);
@@ -317,6 +338,8 @@ static void (*handler[LASTEvent]) (XEvent *) = {
 	[UnmapNotify] = unmapnotify
 };
 static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
+static int epoll_fd;
+static int dpy_fd;
 static int restart = 0;
 static int running = 1;
 static Cur *cursor[CurLast];
@@ -324,13 +347,20 @@ static Clr **scheme;
 static Clr **tagscheme;
 static Display *dpy;
 static Drw *drw;
-static Monitor *mons, *selmon;
+static Monitor *mons, *selmon, *lastselmon;
 static Window root, wmcheckwin;
 static KeySym keychain = -1;
 
+#include "ipc.h"
 /* configuration, allows nested code to access above variables */
 #include "config.h"
 
+#ifdef VERSION
+#include "IPCClient.c"
+#include "yajl_dumps.c"
+#include "ipc.c"
+#endif
+
 struct Pertag {
 	unsigned int curtag, prevtag; /* current and previous tag */
 	int nmasters[LENGTH(tags) + 1]; /* number of windows in master area */
@@ -572,6 +602,12 @@ cleanup(void)
 	XSync(dpy, False);
 	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
 	XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
+
+	ipc_cleanup();
+
+	if (close(epoll_fd) < 0) {
+			fprintf(stderr, "Failed to close epoll file descriptor\n");
+	}
 }
 
 void
@@ -1337,6 +1373,25 @@ grabkeys(void)
 	}
 }
 
+int
+handlexevent(struct epoll_event *ev)
+{
+	if (ev->events & EPOLLIN) {
+		XEvent ev;
+		while (running && XPending(dpy)) {
+			XNextEvent(dpy, &ev);
+			if (handler[ev.type]) {
+				handler[ev.type](&ev); /* call handler */
+				ipc_send_events(mons, &lastselmon, selmon);
+			}
+		}
+	} else if (ev-> events & EPOLLHUP) {
+		return -1;
+	}
+
+	return 0;
+}
+
 void
 incnmaster(const Arg *arg)
 {
@@ -1821,12 +1876,40 @@ restack(Monitor *m)
 void
 run(void)
 {
-	XEvent ev;
-	/* main event loop */
+	int event_count = 0;
+	const int MAX_EVENTS = 10;
+	struct epoll_event events[MAX_EVENTS];
+
 	XSync(dpy, False);
-	while (running && !XNextEvent(dpy, &ev))
-		if (handler[ev.type])
-			handler[ev.type](&ev); /* call handler */
+
+	/* main event loop */
+	while (running) {
+		event_count = epoll_wait(epoll_fd, events, MAX_EVENTS, -1);
+
+		for (int i = 0; i < event_count; i++) {
+			int event_fd = events[i].data.fd;
+			DEBUG("Got event from fd %d\n", event_fd);
+
+			if (event_fd == dpy_fd) {
+				// -1 means EPOLLHUP
+				if (handlexevent(events + i) == -1)
+					return;
+			} else if (event_fd == ipc_get_sock_fd()) {
+				ipc_handle_socket_epoll_event(events + i);
+			} else if (ipc_is_client_registered(event_fd)){
+				if (ipc_handle_client_epoll_event(events + i, mons, &lastselmon, selmon,
+							tags, LENGTH(tags), layouts, LENGTH(layouts)) < 0) {
+					fprintf(stderr, "Error handling IPC event on fd %d\n", event_fd);
+				}
+			} else {
+				fprintf(stderr, "Got event from unknown fd %d, ptr %p, u32 %d, u64 %lu",
+						event_fd, events[i].data.ptr, events[i].data.u32,
+						events[i].data.u64);
+				fprintf(stderr, " with events %d\n", events[i].events);
+				return;
+			}
+		}
+	}
 }
 
 void
@@ -2044,6 +2127,18 @@ setlayout(const Arg *arg)
 		drawbar(selmon);
 }
 
+void
+setlayoutsafe(const Arg *arg)
+{
+	const Layout *ltptr = (Layout *)arg->v;
+	if (ltptr == 0)
+			setlayout(arg);
+	for (int i = 0; i < LENGTH(layouts); i++) {
+		if (ltptr == &layouts[i])
+			setlayout(arg);
+	}
+}
+
 /* arg > 1.0 will set mfact absolutely */
 void
 setmfact(const Arg *arg)
@@ -2146,6 +2241,36 @@ setup(void)
 	XSelectInput(dpy, root, wa.event_mask);
 	grabkeys();
 	focus(NULL);
+    setupepoll();
+}
+
+void
+setupepoll(void)
+{
+    epoll_fd = epoll_create1(0);
+	dpy_fd = ConnectionNumber(dpy);
+	struct epoll_event dpy_event;
+
+	// Initialize struct to 0
+	memset(&dpy_event, 0, sizeof(dpy_event));
+
+	DEBUG("Display socket is fd %d\n", dpy_fd);
+
+	if (epoll_fd == -1) {
+		fputs("Failed to create epoll file descriptor", stderr);
+	}
+
+	dpy_event.events = EPOLLIN;
+	dpy_event.data.fd = dpy_fd;
+	if (epoll_ctl(epoll_fd, EPOLL_CTL_ADD, dpy_fd, &dpy_event)) {
+		fputs("Failed to add display file descriptor to epoll", stderr);
+		close(epoll_fd);
+		exit(1);
+	}
+
+	if (ipc_init(ipcsockpath, epoll_fd, ipccommands, LENGTH(ipccommands)) < 0) {
+		fputs("Failed to initialize IPC\n", stderr);
+	}
 }
 
 void
@@ -2749,10 +2874,18 @@ updatesystray(void)
 void
 updatetitle(Client *c)
 {
+	char oldname[sizeof(c->name)];
+	strcpy(oldname, c->name);
+
 	if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
 		gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
 	if (c->name[0] == '\0') /* hack to mark broken clients */
 		strcpy(c->name, broken);
+
+	for (Monitor *m = mons; m; m = m->next) {
+		if (m->sel == c && strcmp(oldname, c->name) != 0)
+			ipc_focused_title_change_event(m->num, c->win, oldname, c->name);
+	}
 }
 
 void

KleinDwm/source/patches/dwm-focusonnetactive-6.2.diff

@@ -0,0 +1,57 @@
+From 286ca3bb1af08b452bf8140abcc23d4ef61baaa2 Mon Sep 17 00:00:00 2001
+From: bakkeby <bakkeby@gmail.com>
+Date: Tue, 7 Apr 2020 12:33:04 +0200
+Subject: [PATCH] Activate a window in response to _NET_ACTIVE_WINDOW
+
+By default, dwm response to client requests to _NET_ACTIVE_WINDOW client
+messages by setting the urgency bit on the named window.
+
+This patch activates the window instead.
+
+Both behaviours are legitimate according to
+https://specifications.freedesktop.org/wm-spec/wm-spec-latest.html#idm140200472702304
+
+One should decide which of these one should perform based on the message
+senders' untestable claims that it represents the end-user. Setting the
+urgency bit is the conservative decision. This patch implements the more
+trusting alternative.
+
+It also allows dwm to work with `wmctrl -a` and other external window
+management utilities
+
+---
+ dwm.c | 11 +++++++++--
+ 1 file changed, 9 insertions(+), 2 deletions(-)
+
+diff --git a/dwm.c b/dwm.c
+index 4465af1..3919d47 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -514,6 +514,7 @@ clientmessage(XEvent *e)
+ {
+ 	XClientMessageEvent *cme = &e->xclient;
+ 	Client *c = wintoclient(cme->window);
++	unsigned int i;
+ 
+ 	if (!c)
+ 		return;
+@@ -523,8 +524,14 @@ clientmessage(XEvent *e)
+ 			setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD    */
+ 				|| (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
+ 	} else if (cme->message_type == netatom[NetActiveWindow]) {
+-		if (c != selmon->sel && !c->isurgent)
+-			seturgent(c, 1);
++		for (i = 0; i < LENGTH(tags) && !((1 << i) & c->tags); i++);
++		if (i < LENGTH(tags)) {
++			const Arg a = {.ui = 1 << i};
++			selmon = c->mon;
++			view(&a);
++			focus(c);
++			restack(selmon);
++		}
+ 	}
+ }
+ 
+-- 
+2.17.1
+