From 55d6921b4504bb3d4f594caf494161dae4da7436 Mon Sep 17 00:00:00 2001
From: Derek Stevens <nilix@nilfm.cc>
Date: Fri, 5 Mar 2021 23:55:13 -0500
Subject: [PATCH] config.h, main.c, key.c, manage.c, client.c: add zoom mode
 (fullscreen everything); event.c, menu.c: don't leave us out of focus when
 deleting windows

---
 client.c | 11 +++++++++++
 config.h |  1 +
 dat.h    |  1 +
 event.c  |  5 +++++
 key.c    | 12 ++++++++++++
 main.c   |  1 +
 manage.c | 10 ++++++++++
 menu.c   | 10 ++++++++--
 8 files changed, 49 insertions(+), 2 deletions(-)

diff --git a/client.c b/client.c
index 03435a8..594ec77 100644
--- a/client.c
+++ b/client.c
@@ -277,6 +277,9 @@ void dump_clients(void) {
 
 void shuffle(int up) {
   Client **l, *c;
+  static XWindowAttributes ra;
+
+  XGetWindowAttributes(dpy, DefaultRootWindow(dpy), &ra);
 
   if (clients == 0 || clients->next == 0)
     return;
@@ -297,6 +300,14 @@ void shuffle(int up) {
     XMapRaised(dpy, c->parent);
     top(c);
     active(c);
+    if (zoom) {
+      quickreshape(
+        c,
+        -BORDER, 
+        -BORDER, 
+        ra.width + 2 * BORDER, 
+        ra.height + 2 * BORDER);
+    }
   } else {
     c = clients;
     for (l = &clients; *l; l = &(*l)->next)
diff --git a/config.h b/config.h
index 749ecd3..42494ef 100644
--- a/config.h
+++ b/config.h
@@ -60,6 +60,7 @@
 #define RESIZE_KEY XK_r
 #define DESTROY_KEY XK_d
 #define STICK_KEY XK_s
+#define ZOOM_KEY XK_z
 
 #define STICKYTOFRONT_KEY XK_t
 #define STICKYTOBACK_KEY XK_b
diff --git a/dat.h b/dat.h
index cd41513..fd4ea2e 100644
--- a/dat.h
+++ b/dat.h
@@ -157,6 +157,7 @@ extern int solidsweep;
 extern int numvirtuals;
 extern int scrolling;
 extern int ffm; /* focus follows mouse */
+extern int zoom;
 
 extern Atom exit_rio;
 extern Atom restart_rio;
diff --git a/event.c b/event.c
index 075c5df..6e7f6e2 100644
--- a/event.c
+++ b/event.c
@@ -292,18 +292,23 @@ void newwindow(XCreateWindowEvent* e) {
 void destroy(Window w) {
   int i;
   Client* c;
+  int v;
 
   curtime = CurrentTime;
   c = getclient(w, 0);
   if (c == 0)
     return;
 
+  v = c->virt;
   if (numvirtuals > 1)
     for (i = 0; i < numvirtuals; i++)
       if (currents[i] == c)
         currents[i] = 0;
 
   rmclient(c);
+  if (v == virt) {
+    shuffle(0);
+  }
 
   /* flush any errors generated by the window's sudden demise */
   ignore_badwindow = 1;
diff --git a/key.c b/key.c
index 6b9ae27..84189ab 100644
--- a/key.c
+++ b/key.c
@@ -47,6 +47,7 @@ void keysetup(void) {
   int pcode = XKeysymToKeycode(dpy, SNAPTOPRIGHT_KEY);
   int ccode = XKeysymToKeycode(dpy, SNAPCENTER_KEY);
   int slcode = XKeysymToKeycode(dpy, LAUNCH_KEY);
+  int zcode = XKeysymToKeycode(dpy, ZOOM_KEY);
   int rightcode = XKeysymToKeycode(dpy, NEXTVIRT_KEY);
   int leftcode = XKeysymToKeycode(dpy, PREVVIRT_KEY);
 #ifdef DEVEL
@@ -223,6 +224,14 @@ void keysetup(void) {
       0,
       GrabModeSync,
       GrabModeAsync);
+    XGrabKey(
+      dpy,
+      zcode,
+      SHORTCUTMOD,
+      screens[i].root,
+      0,
+      GrabModeSync,
+      GrabModeAsync);
     XGrabKey(
       dpy,
       tabcode,
@@ -271,6 +280,7 @@ void keypress(XKeyEvent* e) {
   int scode = XKeysymToKeycode(dpy, STICK_KEY);
   int rcode = XKeysymToKeycode(dpy, RESIZE_KEY);
   int slcode = XKeysymToKeycode(dpy, LAUNCH_KEY);
+  int zcode = XKeysymToKeycode(dpy, ZOOM_KEY);
   int hcode = XKeysymToKeycode(dpy, SNAPLEFT_KEY);
   int lcode = XKeysymToKeycode(dpy, SNAPRIGHT_KEY);
   int jcode = XKeysymToKeycode(dpy, SNAPBOTTOM_KEY);
@@ -312,6 +322,8 @@ void keypress(XKeyEvent* e) {
       ra.height + 2 * BORDER);
   else if (e->keycode == scode && (e->state & SHORTCUTMOD) == (MODBITS))
     stick(current);
+  else if (e->keycode == zcode && (e->state & SHORTCUTMOD) == (MODBITS))
+    zoom = !zoom;
 
   /* half snap */
   else if (e->keycode == hcode && (e->state & SHORTCUTMOD) == (MODBITS))
diff --git a/main.c b/main.c
index d17c0d9..c453ac3 100644
--- a/main.c
+++ b/main.c
@@ -43,6 +43,7 @@ int solidsweep = 0;
 int numvirtuals = 0;
 int ffm = 0;
 int kbLaunch = 0;
+int zoom = 0;
 
 Atom exit_rio;
 Atom restart_rio;
diff --git a/manage.c b/manage.c
index d710adb..1648f1e 100644
--- a/manage.c
+++ b/manage.c
@@ -219,6 +219,16 @@ int manage(Client* c, int mapped) {
     cmapfocus(current);
   c->init = 1;
 
+  /* If we are in zoom mode, spawn the window maximized */
+  if (zoom) {
+    quickreshape(
+      c,
+      -BORDER, 
+      -BORDER, 
+      ra.width + 2 * BORDER, 
+      ra.height + 2 * BORDER);
+  }
+
   /* If the window is out of bounds of the screen, try to wrangle it */
 
   /* If it's bigger than the screen, try to set it maximized */
diff --git a/menu.c b/menu.c
index 591d337..c496941 100644
--- a/menu.c
+++ b/menu.c
@@ -165,7 +165,7 @@ void button(XButtonEvent* e) {
     case Delete:
       shift = 0;
       c = selectwin(1, &shift, s);
-      delete (c, shift);
+      delete(c, shift);
       break;
     case Hide:
       hide(selectwin(1, 0, s));
@@ -260,10 +260,16 @@ void move(Client* c, int but) {
 }
 
 void delete (Client* c, int shift) {
+  int v;
   if (c == 0)
     return;
-  if ((c->proto & Pdelete) && !shift)
+  v = c->virt;
+  if ((c->proto & Pdelete) && !shift) {
     sendcmessage(c->window, wm_protocols, wm_delete, 0, 0);
+    if (v == virt) {
+      shuffle(0);
+    }
+  }
   else
     XKillClient(dpy, c->window); /* let event clean up */
 }