From ce338a2c041c2237a42fefacb14b094194f6a86e Mon Sep 17 00:00:00 2001
From: cos <cos>
Date: Tue, 7 Nov 2023 12:30:51 +0100
Subject: Obey external window moves with option (-m)

---
 Makefile |  2 +-
 config.h |  8 +++++++-
 mcwm.c   | 53 ++++++++++++++++++++++++++++-------------------------
 3 files changed, 36 insertions(+), 27 deletions(-)

diff --git a/Makefile b/Makefile
index ce0d71d..1bcb4d5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-VERSION=20180725
+VERSION=20231107
 DIST=mcwm-$(VERSION)
 SRC=mcwm.c list.c config.h events.h list.h hidden.c
 DISTFILES=LICENSE Makefile NEWS README TODO WISHLIST mcwm.man hidden.man scripts $(SRC)
diff --git a/config.h b/config.h
index 0129989..4e79b73 100644
--- a/config.h
+++ b/config.h
@@ -35,9 +35,15 @@
 /*
  * Do we allow windows to be iconified? Set to true if you want this
  * behaviour to be default. Can also be set by calling mcwm with -i.
- */ 
+ */
 #define ALLOWICONS false
 
+/*
+ * Do we allow windows to be moved from outside of mcwm? Set to true if you
+ * want this behaviour to be default. Can also be set by calling mcwm with -m.
+ */
+#define ALLOWMOVE false
+
 /*
  * Start these programs when pressing MOUSEMODKEY and mouse buttons on
  * root window.
diff --git a/mcwm.c b/mcwm.c
index 4cd773f..98b3963 100644
--- a/mcwm.c
+++ b/mcwm.c
@@ -285,6 +285,7 @@ struct conf
     uint32_t unfocuscol;        /* Unfocused border colour.  */
     uint32_t fixedcol;          /* Fixed windows border colour. */
     bool allowicons;            /* Allow windows to be unmapped. */
+    bool allowmove;             /* Obey move requests. */
 } conf;
 
 xcb_atom_t atom_desktop;        /*
@@ -3440,37 +3441,34 @@ void configurerequest(xcb_configure_request_event_t *e)
             mon_height = client->monitor->height;
         }
 
-#if 0
-        /*
-         * We ignore moves the user haven't initiated, that is do
-         * nothing on XCB_CONFIG_WINDOW_X and XCB_CONFIG_WINDOW_Y
-         * ConfigureRequests.
-         *
-         * Code here if we ever change our minds or if you, dear user,
-         * wants this functionality.
-         */
+        if (conf.allowmove) {
+            /*
+             * Only act on move request the user haven't initiated, in case
+             * explicitly opted in. I.e. do nothing on XCB_CONFIG_WINDOW_X and
+             * XCB_CONFIG_WINDOW_Y ConfigureRequests by default.
+             */
 
-        if (e->value_mask & XCB_CONFIG_WINDOW_X)
-        {
-            /* Don't move window if maximized. Don't move off the screen. */
-            if (!client->maxed && e->x > 0)
+            if (e->value_mask & XCB_CONFIG_WINDOW_X)
             {
-                client->x = e->x;
+                /* Don't move window if maximized. Don't move off the screen. */
+                if (!client->maxed && e->x >= 0)
+                {
+                    client->x = e->x;
+                }
             }
-        }
 
-        if (e->value_mask & XCB_CONFIG_WINDOW_Y)
-        {
-            /*
-             * Don't move window if maximized. Don't move off the
-             * screen.
-             */
-            if (!client->maxed && !client->vertmaxed && e->y > 0)
+            if (e->value_mask & XCB_CONFIG_WINDOW_Y)
             {
-                client->y = e->y;
+                /*
+                 * Don't move window if maximized. Don't move off the
+                 * screen.
+                 */
+                if (!client->maxed && !client->vertmaxed && e->y >= 0)
+                {
+                    client->y = e->y;
+                }
             }
         }
-#endif
 
         if (e->value_mask & XCB_CONFIG_WINDOW_WIDTH)
         {
@@ -4345,13 +4343,14 @@ int main(int argc, char **argv)
     conf.snapmargin = SNAPMARGIN;
     conf.terminal = TERMINAL;
     conf.allowicons = ALLOWICONS;
+    conf.allowmove = ALLOWMOVE;
     focuscol = FOCUSCOL;
     unfocuscol = UNFOCUSCOL;
     fixedcol = FIXEDCOL;
 
     while (1)
     {
-        ch = getopt(argc, argv, "b:s:it:f:u:x:");
+        ch = getopt(argc, argv, "b:s:imt:f:u:x:");
         if (-1 == ch)
         {
 
@@ -4375,6 +4374,10 @@ int main(int argc, char **argv)
             conf.allowicons = true;
             break;
 
+        case 'm':
+            conf.allowmove = true;
+            break;
+
         case 't':
             conf.terminal = optarg;
             break;
-- 
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