[client] Add and honor the noborder attribute

Signed-off-by: Julien Danjou <julien@danjou.info>

client.c

@@ -871,21 +871,35 @@ luaA_client_focus_get(lua_State *L __attribute__ ((unused)))
     return 1;
 }
 
+/** Set client border width.
+ * \c The client.
+ * \ width The border width.
+ */
+void
+client_setborder(client_t *c, uint32_t width)
+{
+    if(c->noborder && width > 0)
+        return;
+
+    c->border = width;
+    xcb_configure_window(globalconf.connection, c->win,
+                         XCB_CONFIG_WINDOW_BORDER_WIDTH, &width);
+    globalconf.screens[c->screen].need_arrange = true;
+}
+
+/** Set the client border width and color.
+ * \param The border width in pixel.
+ * \param The border color.
+ */
 static int
 luaA_client_border_set(lua_State *L)
 {
     client_t **c = luaL_checkudata(L, 1, "client");
-    int width = luaA_getopt_number(L, 2, "width", -1);
+    uint32_t width = luaA_getopt_number(L, 2, "width", 0);
     const char *colorstr = luaA_getopt_string(L, 2, "color", NULL);
     xcolor_t color;
 
-    if(width >= 0)
-    {
-        (*c)->border = width;
-        globalconf.screens[(*c)->screen].need_arrange = true;
-        xcb_configure_window(globalconf.connection, (*c)->win,
-                             XCB_CONFIG_WINDOW_BORDER_WIDTH, (uint32_t *) &width);
-    }
+    client_setborder(*c, width);
 
     if(colorstr
         && draw_color_new(globalconf.connection, (*c)->phys_screen, colorstr, &color))

client.h

@@ -42,6 +42,7 @@ void client_saveprops(client_t *);
 void client_kill(client_t *);
 void client_setfloating(client_t *, bool, layer_t);
 char * client_markup_parse(client_t *, const char *, ssize_t);
+void client_setborder(client_t *, uint32_t);
 
 int luaA_client_userdata_new(client_t *);
 

ewmh.c

@@ -286,8 +286,9 @@ ewmh_process_state_atom(client_t *c, xcb_atom_t state, int set)
                 c->titlebar.position = c->titlebar_oldposition;
                 xcb_map_window(globalconf.connection, c->titlebar_sw->window);
             }
-            c->border = c->oldborder;
+            c->noborder = false;
             c->ismax = false;
+            client_setborder(c, c->oldborder);
             client_setfloating(c, c->wasfloating, c->oldlayer);
         }
         else if(set == _NET_WM_STATE_ADD)
@@ -302,9 +303,10 @@ ewmh_process_state_atom(client_t *c, xcb_atom_t state, int set)
                 xcb_unmap_window(globalconf.connection, c->titlebar_sw->window);
                 c->titlebar.position = Off;
             }
-            c->oldborder = c->border;
-            c->border = 0;
             c->ismax = true;
+            c->oldborder = c->border;
+            client_setborder(c, 0);
+            c->noborder = true;
             client_setfloating(c, true, LAYER_FULLSCREEN);
         }
         widget_invalidate_cache(c->screen, WIDGET_CACHE_CLIENTS);
@@ -348,7 +350,6 @@ ewmh_process_window_type_atom(client_t *c, xcb_atom_t state)
     else if(state == net_wm_window_type_dock
             || state == net_wm_window_type_splash)
     {
-        c->border = 0;
         c->skip = true;
         c->isfixed = true;
         if(c->titlebar.position)
@@ -356,6 +357,8 @@ ewmh_process_window_type_atom(client_t *c, xcb_atom_t state)
             xcb_unmap_window(globalconf.connection, c->titlebar_sw->window);
             c->titlebar.position = Off;
         }
+        client_setborder(c, 0);
+        c->noborder = true;
         client_setfloating(c, true, LAYER_ABOVE);
     }
     else if (state == net_wm_window_type_dialog)

structs.h

@@ -246,6 +246,8 @@ struct client_t
     int basew, baseh, incw, inch, maxw, maxh, minw, minh;
     int minax, maxax, minay, maxay;
     int border, oldborder;
+    /** True if the client does not want any border */
+    bool noborder;
     /** Has urgency hint */
     bool isurgent;
     /** Store previous floating state before maximizing */