From 9ca57a8364893541eef3a56689f6597d6f01f38b Mon Sep 17 00:00:00 2001
From: blueusername <blueusername@github>
Date: Fri, 2 Sep 2016 20:15:00 +0100
Subject: [PATCH] Fix a bug moving between a tiled and a floating screen.

Check if any of the window is on the screen it is moved to, not just
the topmost leftmost edge.

Signed-off-by: blueusername <blueusername@github>
---
 objects/client.c |  2 +-
 objects/screen.c | 14 ++++++++++++++
 objects/screen.h |  1 +
 3 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/objects/client.c b/objects/client.c
index 838112d1..84de9daf 100644
--- a/objects/client.c
+++ b/objects/client.c
@@ -1506,7 +1506,7 @@ client_resize_do(client_t *c, area_t geometry, bool force_notice)
     bool java_is_broken = true;
 
     screen_t *new_screen = c->screen;
-    if(!screen_coord_in_screen(new_screen, geometry.x, geometry.y))
+    if(!screen_area_in_screen(new_screen, geometry))
         new_screen = screen_getbycoord(geometry.x, geometry.y);
 
     if(c->geometry.width == geometry.width
diff --git a/objects/screen.c b/objects/screen.c
index 09ba56bc..bee9aee7 100644
--- a/objects/screen.c
+++ b/objects/screen.c
@@ -731,6 +731,20 @@ screen_coord_in_screen(screen_t *s, int x, int y)
            && (y >= s->geometry.y && y < s->geometry.y + s->geometry.height);
 }
 
+/** Is there any overlap between the given geometry and a given screen?
+ * \param screen The logical screen number.
+ * \param geom The geometry
+ * \return True if there is any overlap between the geometry and a given screen.
+ */
+bool
+screen_area_in_screen(screen_t *s, area_t geom)
+{
+        return (geom.x < s->geometry.x + s->geometry.width)
+               && (geom.x + geom.width > s->geometry.x )
+               && (geom.y < s->geometry.y + s->geometry.height)
+               && (geom.y + geom.height > s->geometry.y);
+}
+
 void screen_update_workarea(screen_t *screen)
 {
     area_t area = screen->geometry;
diff --git a/objects/screen.h b/objects/screen.h
index 6b419c80..45876062 100644
--- a/objects/screen.h
+++ b/objects/screen.h
@@ -50,6 +50,7 @@ void screen_class_setup(lua_State *L);
 void screen_scan(void);
 screen_t *screen_getbycoord(int, int);
 bool screen_coord_in_screen(screen_t *, int, int);
+bool screen_area_in_screen(screen_t *, area_t);
 int screen_get_index(screen_t *);
 area_t display_area_get(void);
 void screen_client_moveto(client_t *, screen_t *, bool);