From 8d00456ad3e7b7a49d8fadb269334589e3704758 Mon Sep 17 00:00:00 2001
From: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
Date: Wed, 21 Feb 2018 10:39:46 +0100
Subject: nxagent: Add support for optionally enabling/disabling the magic
 pixel feature.

Fixes ArcticaProject/nx-libs#657.
---
 nx-X11/programs/Xserver/hw/nxagent/Args.c        | 18 ++++++++++++++++++
 nx-X11/programs/Xserver/hw/nxagent/Events.c      |  2 +-
 nx-X11/programs/Xserver/hw/nxagent/Options.c     |  2 ++
 nx-X11/programs/Xserver/hw/nxagent/Options.h     |  6 ++++++
 nx-X11/programs/Xserver/hw/nxagent/man/nxagent.1 |  7 +++++++
 5 files changed, 34 insertions(+), 1 deletion(-)

(limited to 'nx-X11/programs/Xserver')

diff --git a/nx-X11/programs/Xserver/hw/nxagent/Args.c b/nx-X11/programs/Xserver/hw/nxagent/Args.c
index 14f696e2d..604b33187 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Args.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Args.c
@@ -676,6 +676,10 @@ int ddxProcessArgument(int argc, char *argv[], int i)
     return 1;
   }
 
+  if (!strcmp(argv[i], "-nomagicpixel")) {
+    nxagentChangeOption(MagicPixel, 0);
+    return 1;
+  }
 
   if (!strcmp(argv[i], "-noonce"))
   {
@@ -1246,6 +1250,19 @@ static void nxagentParseOptions(char *name, char *value)
 
     return;
   }
+  else if (!strcmp(name, "magicpixel"))
+  {
+    if (!strcmp(value, "0"))
+    {
+      nxagentChangeOption(MagicPixel, 0);
+    }
+    else
+    {
+      nxagentChangeOption(MagicPixel, 1);
+    }
+
+    return;
+  }
   else if (strcmp(name, "shadowuid") == 0)
   {
     nxagentShadowUid = atoi(value);
@@ -2075,6 +2092,7 @@ void ddxUseMsg()
   ErrorF("-forcenx               force use of NX protocol messages assuming communication through nxproxy\n");
   ErrorF("-timeout int           auto-disconnect timeout in seconds (minimum allowed: 60)\n");
   ErrorF("-norootlessexit        don't exit if there are no clients in rootless mode\n");
+  ErrorF("-nomagicpixel          disable nxagent's magic pixel\n");
 #ifdef RENDER
   ErrorF("-norender              disable the use of the render extension\n");
   ErrorF("-nocomposite           disable the use of the composite extension\n");
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Events.c b/nx-X11/programs/Xserver/hw/nxagent/Events.c
index 315b6572e..8681ab270 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Events.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Events.c
@@ -1218,7 +1218,7 @@ FIXME: Don't enqueue the KeyRelease event if the key was
 
         if (nxagentOption(Fullscreen))
         {
-          if (nxagentMagicPixelZone(X.xbutton.x, X.xbutton.y))
+          if ( (nxagentOption(MagicPixel) == 1) && (nxagentMagicPixelZone(X.xbutton.x, X.xbutton.y)) )
           {
             pScreen = nxagentScreen(X.xbutton.window);
 
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Options.c b/nx-X11/programs/Xserver/hw/nxagent/Options.c
index 3464fdb10..dba54a6c6 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Options.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Options.c
@@ -155,6 +155,8 @@ void nxagentInitOptions()
 
   nxagentOptions.Menu = 1;
 
+  nxagentOptions.MagicPixel = 1;
+
   nxagentOptions.ClientOs = UNDEFINED;
 
   nxagentOptions.InhibitXkb = 1;
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Options.h b/nx-X11/programs/Xserver/hw/nxagent/Options.h
index 95b0642e1..a4e2c5099 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Options.h
+++ b/nx-X11/programs/Xserver/hw/nxagent/Options.h
@@ -385,6 +385,12 @@ typedef struct _AgentOptions
 
   int Menu;
 
+  /*
+   * Enabling/disabling the magic pixel.
+   */
+
+  int MagicPixel;
+
   /*
    * Specify the Operative System of the client.
    */
diff --git a/nx-X11/programs/Xserver/hw/nxagent/man/nxagent.1 b/nx-X11/programs/Xserver/hw/nxagent/man/nxagent.1
index 124f08743..1c0fe5fa4 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/man/nxagent.1
+++ b/nx-X11/programs/Xserver/hw/nxagent/man/nxagent.1
@@ -399,6 +399,10 @@ auto-disconnect timeout in seconds (minimum allowed: 60)
 .B \-norootlessexit
 don't exit if there are no clients in rootless mode
 .TP 8
+.B \-nomagicpixel
+disable magic pixel support at session startup, can be re-enabled via nx/nx option on session
+resumption
+.TP 8
 .B \-norender
 disable the use of the render extension
 .TP 8
@@ -599,6 +603,9 @@ overrides the command line default.
 support pulldown menu in \fBnxagent\fR session (only available on
 proxy <-> agent remote sessions)
 .TP 8
+.B magicpixel=<int>
+enable/disable magic pixel support in fullscreen mode (default: 1, enabled)
+.TP 8
 .B sleep=<int>
 delay X server operations when suspended (provided in msec), set to
 \fI0\fR to keep \fBnxagent\fR session fully functional when suspended
-- 
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