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From f536966df6253dc625a69803734bc250f3c01cda Mon Sep 17 00:00:00 2001
From: Proteek <pro_roy7@yahoo.co.uk>
Date: Fri, 7 Mar 2025 05:50:33 +0000
Subject: [PATCH] Fix window placement in kiosk mode

virt_viewer_window_move_to_monitor() did not consider display mappings (in kiosk mode it seems).
Both a window and display need to be instructed which monitor to be placed on (I think).
This fix focuses on placing the window correctly by using the configured mapping.
---
 src/virt-viewer-window.c | 43 ++++++++++++++++++++++++++++++++++++----
 1 file changed, 39 insertions(+), 4 deletions(-)

diff --git a/src/virt-viewer-window.c b/src/virt-viewer-window.c
index 29ec4bd7..7fb5860c 100644
--- a/src/virt-viewer-window.c
+++ b/src/virt-viewer-window.c
@@ -674,15 +674,50 @@ virt_viewer_window_move_to_monitor(VirtViewerWindow *self)
     GdkRectangle mon;
     gint n = self->fullscreen_monitor;
 
+    /*
+        The window should be placed on the monitor for it's
+        contained display. The monitor can be found in the
+        initial_display_mapping and is retrieved with
+        virt_viewer_app_get_initial_monitor_for_display().
+
+        virt_viewer_display_get_monitor() does not update
+        properly (in kiosk mode) and is not derived from
+        the "monitor-mapping"/initial_display_mapping.
+    */
+
+    if (self->display) {
+        gint nthd = virt_viewer_display_get_nth(self->display);
+        g_debug("   Display %d - assigned monitor %d", nthd, virt_viewer_display_get_monitor(self->display));
+        g_debug("   Display %d - window %s assigned monitor %d", nthd, self->subtitle, n);
+        if (self->app) {
+            n = virt_viewer_app_get_initial_monitor_for_display(self->app, nthd);
+            g_debug("      Both should be on monitor %d", n);
+        }
+    } else {
+        g_debug("No display for this window, nothing to do");
+        //return;
+    }
+
     if (n == -1)
         return;
 
+    gint width, height, x, y;
+    gtk_window_get_size(GTK_WINDOW(self->window), &width, &height);
+    gtk_window_get_position(GTK_WINDOW(self->window), &x, &y);
     gdk_screen_get_monitor_geometry(gdk_screen_get_default(), n, &mon);
-    gtk_window_move(GTK_WINDOW(self->window), mon.x, mon.y);
 
-    gtk_widget_set_size_request(self->window,
-                                mon.width,
-                                mon.height);
+    g_debug("   window geom %dx%d+%d+%d", width, height, x, y);
+    g_debug("   monitor geom %dx%d+%d+%d", mon.width, mon.height, mon.x, mon.y);
+
+    if(width != mon.width || height != mon.height) {
+        g_debug("   Window has incorrect size. Resizing to %dx%d", mon.width, mon.height);
+        gtk_widget_set_size_request(self->window, mon.width, mon.height);
+    }
+
+    if(x != mon.x || y != mon.y) {
+        g_debug("   Window has incorrect position. Moving to (%d, %d)", mon.x, mon.y);
+        gtk_window_move(GTK_WINDOW(self->window), mon.x, mon.y);
+    }
 }
 
 static gboolean
-- 
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