Merge branch 'backport' into work
[dana/openbox.git] / openbox / screen.c
index dde0443..5074f18 100644 (file)
@@ -55,20 +55,20 @@ static gboolean replace_wm(void);
 static void     screen_tell_ksplash(void);
 static void     screen_fallback_focus(void);
 
-guint    screen_num_desktops;
-guint    screen_num_monitors;
-guint    screen_desktop;
-guint    screen_last_desktop = 1;
-gboolean screen_showing_desktop;
+guint           screen_num_desktops;
+guint           screen_num_monitors;
+guint           screen_desktop;
+guint           screen_last_desktop;
+gboolean        screen_showing_desktop;
 ObDesktopLayout screen_desktop_layout;
-gchar  **screen_desktop_names;
-Window   screen_support_win;
-Time     screen_desktop_user_time = CurrentTime;
+gchar         **screen_desktop_names;
+Window          screen_support_win;
+Time            screen_desktop_user_time = CurrentTime;
 
 static Size     screen_physical_size;
 static guint    screen_old_desktop;
 static gboolean screen_desktop_timeout = TRUE;
-/*! An array of desktops, holding array of areas per monitor */
+/*! An array of desktops, holding an array of areas per monitor */
 static Rect  *monitor_area = NULL;
 /*! An array of desktops, holding an array of struts */
 static GSList *struts_top = NULL;
@@ -77,6 +77,7 @@ static GSList *struts_right = NULL;
 static GSList *struts_bottom = NULL;
 
 static ObPagerPopup *desktop_popup;
+static gboolean      desktop_popup_perm;
 
 /*! The number of microseconds that you need to be on a desktop before it will
   replace the remembered "last desktop" */
@@ -290,7 +291,11 @@ gboolean screen_annex(void)
     supported[i++] = OBT_PROP_ATOM(OB_WM_STATE_UNDECORATED);
     supported[i++] = OBT_PROP_ATOM(OPENBOX_PID);
     supported[i++] = OBT_PROP_ATOM(OB_THEME);
+    supported[i++] = OBT_PROP_ATOM(OB_CONFIG_FILE);
     supported[i++] = OBT_PROP_ATOM(OB_CONTROL);
+    supported[i++] = OBT_PROP_ATOM(OB_ROLE);
+    supported[i++] = OBT_PROP_ATOM(OB_NAME);
+    supported[i++] = OBT_PROP_ATOM(OB_CLASS);
     g_assert(i == num_support);
 
     OBT_PROP_SETA32(obt_root(ob_screen),
@@ -329,7 +334,7 @@ static void screen_tell_ksplash(void)
     e.xclient.display = obt_display;
     e.xclient.window = obt_root(ob_screen);
     e.xclient.message_type =
-        XInternAtom(obt_display, "_KDE_SPLASH_PROGRESS", False );
+        XInternAtom(obt_display, "_KDE_SPLASH_PROGRESS", False);
     e.xclient.format = 8;
     strcpy(e.xclient.data.b, "wm started");
     XSendEvent(obt_display, obt_root(ob_screen),
@@ -343,6 +348,7 @@ void screen_startup(gboolean reconfig)
     gboolean namesexist = FALSE;
 
     desktop_popup = pager_popup_new();
+    desktop_popup_perm = FALSE;
     pager_popup_height(desktop_popup, POPUP_HEIGHT);
 
     if (reconfig) {
@@ -391,7 +397,17 @@ void screen_startup(gboolean reconfig)
     screen_num_desktops = 0;
     if (OBT_PROP_GET32(obt_root(ob_screen),
                        NET_NUMBER_OF_DESKTOPS, CARDINAL, &d))
+    {
+        if (d != config_desktops_num) {
+            /* TRANSLATORS: If you need to specify a different order of the
+               arguments, you can use %1$d for the first one and %2$d for the
+               second one. For example,
+               "The current session has %2$d desktops, but Openbox is configured for %1$d ..." */
+            g_warning(ngettext("Openbox is configured for %d desktop, but the current session has %d.  Overriding the Openbox configuration.", "Openbox is configured for %d desktops, but the current session has %d.  Overriding the Openbox configuration.", config_desktops_num),
+                      config_desktops_num, d);
+        }
         screen_set_num_desktops(d);
+    }
     /* restore from session if possible */
     else if (session_num_desktops)
         screen_set_num_desktops(session_num_desktops);
@@ -469,7 +485,7 @@ void screen_resize(void)
     OBT_PROP_SETA32(obt_root(ob_screen),
                     NET_DESKTOP_GEOMETRY, CARDINAL, geometry, 2);
 
-    if (ob_state() == OB_STATE_STARTING)
+    if (ob_state() != OB_STATE_RUNNING)
         return;
 
     screen_update_areas();
@@ -481,7 +497,6 @@ void screen_resize(void)
 
 void screen_set_num_desktops(guint num)
 {
-    guint old;
     gulong *viewport;
     GList *it, *stacking_copy;
 
@@ -489,7 +504,6 @@ void screen_set_num_desktops(guint num)
 
     if (screen_num_desktops == num) return;
 
-    old = screen_num_desktops;
     screen_num_desktops = num;
     OBT_PROP_SET32(obt_root(ob_screen), NET_NUMBER_OF_DESKTOPS, CARDINAL, num);
 
@@ -518,12 +532,13 @@ void screen_set_num_desktops(guint num)
                 stacking_raise(CLIENT_AS_WINDOW(c));
         }
     }
+    g_list_free(stacking_copy);
 
     /* change our struts/area to match (after moving windows) */
     screen_update_areas();
 
     /* may be some unnamed desktops that we need to fill in with names
-     (after updating the areas so the popup can resize) */
+       (after updating the areas so the popup can resize) */
     screen_update_desktop_names();
 
     /* change our desktop if we're on one that no longer exists! */
@@ -599,10 +614,15 @@ void screen_set_desktop(guint num, gboolean dofocus)
         /* If screen_desktop_timeout is true, then we've been on this desktop
            long enough and we can save it as the last desktop. */
 
-        /* save the "last desktop" as the "old desktop" */
-        screen_old_desktop = screen_last_desktop;
-        /* save the desktop we're coming from as the "last desktop" */
-        screen_last_desktop = previous;
+        if (screen_last_desktop == previous)
+            /* this is the startup state only */
+            screen_old_desktop = screen_desktop;
+        else {
+            /* save the "last desktop" as the "old desktop" */
+            screen_old_desktop = screen_last_desktop;
+            /* save the desktop we're coming from as the "last desktop" */
+            screen_last_desktop = previous;
+        }
     }
     else {
         /* If screen_desktop_timeout is false, then we just got to this desktop
@@ -656,7 +676,10 @@ void screen_set_desktop(guint num, gboolean dofocus)
     obt_main_loop_timeout_add(ob_main_loop, REMEMBER_LAST_DESKTOP_TIME,
                               last_desktop_func, NULL, NULL, NULL);
 
-    ob_debug("Moving to desktop %d\n", num+1);
+    ob_debug("Moving to desktop %d", num+1);
+
+    if (ob_state() == OB_STATE_RUNNING)
+        screen_show_desktop_popup(screen_desktop, FALSE);
 
     /* ignore enter events caused by the move */
     ignore_start = event_start_ignore_all_enters();
@@ -680,7 +703,15 @@ void screen_set_desktop(guint num, gboolean dofocus)
     for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
         if (WINDOW_IS_CLIENT(it->data)) {
             ObClient *c = it->data;
-            client_hide(c);
+            if (client_hide(c) && c == focus_client) {
+                /* c was focused and we didn't do fallback clearly so make sure
+                   openbox doesnt still consider the window focused.
+                   this happens when using NextWindow with allDesktops, since
+                   it doesnt want to move focus on desktop change, but the
+                   focus is not going to stay with the current window, which
+                   has now disappeared */
+                focus_set_client(NULL);
+            }
         }
     }
 
@@ -688,9 +719,6 @@ void screen_set_desktop(guint num, gboolean dofocus)
 
     if (event_curtime != CurrentTime)
         screen_desktop_user_time = event_curtime;
-
-    if (ob_state() == OB_STATE_RUNNING)
-        screen_show_desktop_popup(screen_desktop);
 }
 
 void screen_add_desktop(gboolean current)
@@ -713,7 +741,7 @@ void screen_add_desktop(gboolean current)
                    parent - which will have to be on the same desktop */
                 !client_direct_parent(c))
             {
-                ob_debug("moving window %s\n", c->title);
+                ob_debug("moving window %s", c->title);
                 client_set_desktop(c, c->desktop+1, FALSE, TRUE);
             }
         }
@@ -754,7 +782,7 @@ void screen_remove_desktop(gboolean current)
                    parent - which will have to be on the same desktop */
                 !client_direct_parent(c))
             {
-                ob_debug("moving window %s\n", c->title);
+                ob_debug("moving window %s", c->title);
                 client_set_desktop(c, c->desktop - 1, TRUE, TRUE);
             }
             /* raise all the windows that are on the current desktop which
@@ -764,15 +792,16 @@ void screen_remove_desktop(gboolean current)
                 (d == DESKTOP_ALL || d == screen_desktop))
             {
                 stacking_raise(CLIENT_AS_WINDOW(c));
-                ob_debug("raising window %s\n", c->title);
+                ob_debug("raising window %s", c->title);
             }
         }
     }
+    g_list_free(stacking_copy);
 
     /* fallback focus like we're changing desktops */
     if (screen_desktop < screen_num_desktops - 1) {
         screen_fallback_focus();
-        ob_debug("fake desktop change\n");
+        ob_debug("fake desktop change");
     }
 
     screen_set_num_desktops(screen_num_desktops-1);
@@ -894,14 +923,14 @@ static gboolean hide_desktop_popup_func(gpointer data)
     return FALSE; /* don't repeat */
 }
 
-void screen_show_desktop_popup(guint d)
+void screen_show_desktop_popup(guint d, gboolean perm)
 {
     Rect *a;
 
     /* 0 means don't show the popup */
     if (!config_desktop_popup_time) return;
 
-    a = screen_physical_area_active();
+    a = screen_physical_area_primary(FALSE);
     pager_popup_position(desktop_popup, CenterGravity,
                          a->x + a->width / 2, a->y + a->height / 2);
     pager_popup_icon_size_multiplier(desktop_popup,
@@ -914,15 +943,22 @@ void screen_show_desktop_popup(guint d)
     pager_popup_show(desktop_popup, screen_desktop_names[d], d);
 
     obt_main_loop_timeout_remove(ob_main_loop, hide_desktop_popup_func);
-    obt_main_loop_timeout_add(ob_main_loop, config_desktop_popup_time * 1000,
-                              hide_desktop_popup_func, NULL, NULL, NULL);
+    if (!perm && !desktop_popup_perm)
+        /* only hide if its not already being show permanently */
+        obt_main_loop_timeout_add(ob_main_loop,
+                                  config_desktop_popup_time * 1000,
+                                  hide_desktop_popup_func, desktop_popup,
+                                  g_direct_equal, NULL);
+
     g_free(a);
 }
 
 void screen_hide_desktop_popup(void)
 {
-    obt_main_loop_timeout_remove(ob_main_loop, hide_desktop_popup_func);
+    obt_main_loop_timeout_remove_data(ob_main_loop, hide_desktop_popup_func,
+                                      desktop_popup, FALSE);
     pager_popup_hide(desktop_popup);
+    desktop_popup_perm = FALSE;
 }
 
 guint screen_find_desktop(guint from, ObDirection dir,
@@ -1240,19 +1276,6 @@ void screen_install_colormap(ObClient *client, gboolean install)
     }
 }
 
-#define STRUT_LEFT_ON_MONITOR(s, i) \
-    (RANGES_INTERSECT(s->left_start, s->left_end - s->left_start + 1, \
-                      monitor_area[i].y, monitor_area[i].height))
-#define STRUT_RIGHT_ON_MONITOR(s, i) \
-    (RANGES_INTERSECT(s->right_start, s->right_end - s->right_start + 1, \
-                      monitor_area[i].y, monitor_area[i].height))
-#define STRUT_TOP_ON_MONITOR(s, i) \
-    (RANGES_INTERSECT(s->top_start, s->top_end - s->top_start + 1, \
-                      monitor_area[i].x, monitor_area[i].width))
-#define STRUT_BOTTOM_ON_MONITOR(s, i) \
-    (RANGES_INTERSECT(s->bottom_start, s->bottom_end - s->bottom_start + 1, \
-                      monitor_area[i].x, monitor_area[i].width))
-
 typedef struct {
     guint desktop;
     StrutPartial *strut;
@@ -1281,10 +1304,12 @@ typedef struct {
 static void get_xinerama_screens(Rect **xin_areas, guint *nxin)
 {
     guint i;
-    gint l, r, t, b;
+    gint n, l, r, t, b;
+#ifdef XINERAMA
+    XineramaScreenInfo *info;
+#endif
 
     if (ob_debug_xinerama) {
-        g_print("Using fake xinerama !\n");
         gint w = WidthOfScreen(ScreenOfDisplay(obt_display, ob_screen));
         gint h = HeightOfScreen(ScreenOfDisplay(obt_display, ob_screen));
         *nxin = 2;
@@ -1293,10 +1318,8 @@ static void get_xinerama_screens(Rect **xin_areas, guint *nxin)
         RECT_SET((*xin_areas)[1], w/2, 0, w-(w/2), h);
     }
 #ifdef XINERAMA
-    else if (obt_display_extension_xinerama) {
-        guint i;
-        gint n;
-        XineramaScreenInfo *info = XineramaQueryScreens(obt_display, &n);
+    else if (obt_display_extension_xinerama &&
+             (info = XineramaQueryScreens(obt_display, &n))) {
         *nxin = n;
         *xin_areas = g_new(Rect, *nxin + 1);
         for (i = 0; i < *nxin; ++i)
@@ -1329,10 +1352,9 @@ static void get_xinerama_screens(Rect **xin_areas, guint *nxin)
 
 void screen_update_areas(void)
 {
-    guint i, j;
+    guint i;
     gulong *dims;
     GList *it;
-    GSList *sit;
 
     g_free(monitor_area);
     get_xinerama_screens(&monitor_area, &screen_num_monitors);
@@ -1347,8 +1369,6 @@ void screen_update_areas(void)
     config_margins.right_start = RECT_TOP(monitor_area[screen_num_monitors]);
     config_margins.right_end = RECT_BOTTOM(monitor_area[screen_num_monitors]);
 
-    dims = g_new(gulong, 4 * screen_num_desktops * screen_num_monitors);
-
     RESET_STRUT_LIST(struts_left);
     RESET_STRUT_LIST(struts_top);
     RESET_STRUT_LIST(struts_right);
@@ -1393,57 +1413,17 @@ void screen_update_areas(void)
     VALIDATE_STRUTS(struts_bottom, bottom,
                     monitor_area[screen_num_monitors].height / 2);
 
-    /* set up the work areas to be full screen */
-    for (i = 0; i < screen_num_monitors; ++i)
-        for (j = 0; j < screen_num_desktops; ++j) {
-            dims[(i * screen_num_desktops + j) * 4+0] = monitor_area[i].x;
-            dims[(i * screen_num_desktops + j) * 4+1] = monitor_area[i].y;
-            dims[(i * screen_num_desktops + j) * 4+2] = monitor_area[i].width;
-            dims[(i * screen_num_desktops + j) * 4+3] = monitor_area[i].height;
-        }
-
-    /* calculate the work areas from the struts */
-    for (i = 0; i < screen_num_monitors; ++i)
-        for (j = 0; j < screen_num_desktops; ++j) {
-            gint l = 0, r = 0, t = 0, b = 0;
-
-            /* only add the strut to the area if it touches the monitor */
-
-            for (sit = struts_left; sit; sit = g_slist_next(sit)) {
-                ObScreenStrut *s = sit->data;
-                if ((s->desktop == j || s->desktop == DESKTOP_ALL) &&
-                    STRUT_LEFT_ON_MONITOR(s->strut, i))
-                    l = MAX(l, s->strut->left);
-            }
-            for (sit = struts_top; sit; sit = g_slist_next(sit)) {
-                ObScreenStrut *s = sit->data;
-                if ((s->desktop == j || s->desktop == DESKTOP_ALL) &&
-                    STRUT_TOP_ON_MONITOR(s->strut, i))
-                    t = MAX(t, s->strut->top);
-            }
-            for (sit = struts_right; sit; sit = g_slist_next(sit)) {
-                ObScreenStrut *s = sit->data;
-                if ((s->desktop == j || s->desktop == DESKTOP_ALL) &&
-                    STRUT_RIGHT_ON_MONITOR(s->strut, i))
-                    r = MAX(r, s->strut->right);
-            }
-            for (sit = struts_bottom; sit; sit = g_slist_next(sit)) {
-                ObScreenStrut *s = sit->data;
-                if ((s->desktop == j || s->desktop == DESKTOP_ALL) &&
-                    STRUT_BOTTOM_ON_MONITOR(s->strut, i))
-                    b = MAX(b, s->strut->bottom);
-            }
-
-            /* based on these margins, set the work area for the
-               monitor/desktop */
-            dims[(i * screen_num_desktops + j) * 4 + 0] += l;
-            dims[(i * screen_num_desktops + j) * 4 + 1] += t;
-            dims[(i * screen_num_desktops + j) * 4 + 2] -= l + r;
-            dims[(i * screen_num_desktops + j) * 4 + 3] -= t + b;
-        }
+    dims = g_new(gulong, 4 * screen_num_desktops);
+    for (i = 0; i < screen_num_desktops; ++i) {
+        Rect *area = screen_area(i, SCREEN_AREA_ALL_MONITORS, NULL);
+        dims[i*4+0] = area->x;
+        dims[i*4+1] = area->y;
+        dims[i*4+2] = area->width;
+        dims[i*4+3] = area->height;
+        g_free(area);
+    }
 
-    /* all the work areas are not used here, only the ones for the first
-       monitor are */
+    /* set the legacy workarea hint to the union of all the monitors */
     OBT_PROP_SETA32(obt_root(ob_screen), NET_WORKAREA, CARDINAL,
                     dims, 4 * screen_num_desktops);
 
@@ -1511,7 +1491,7 @@ Rect* screen_area(guint desktop, guint head, Rect *search)
 {
     Rect *a;
     GSList *it;
-    gint l, r, t, b, al, ar, at, ab;
+    gint l, r, t, b;
     guint i, d;
     gboolean us = search != NULL; /* user provided search */
 
@@ -1537,30 +1517,30 @@ Rect* screen_area(guint desktop, guint head, Rect *search)
 
     /* only include monitors which the search area lines up with */
     if (RECT_INTERSECTS_RECT(monitor_area[screen_num_monitors], *search)) {
-        al = l = RECT_RIGHT(monitor_area[screen_num_monitors]);
-        at = t = RECT_BOTTOM(monitor_area[screen_num_monitors]);
-        ar = r = RECT_LEFT(monitor_area[screen_num_monitors]);
-        ab = b = RECT_TOP(monitor_area[screen_num_monitors]);
+        l = RECT_RIGHT(monitor_area[screen_num_monitors]);
+        t = RECT_BOTTOM(monitor_area[screen_num_monitors]);
+        r = RECT_LEFT(monitor_area[screen_num_monitors]);
+        b = RECT_TOP(monitor_area[screen_num_monitors]);
         for (i = 0; i < screen_num_monitors; ++i) {
             /* add the monitor if applicable */
             if (RANGES_INTERSECT(search->x, search->width,
                                  monitor_area[i].x, monitor_area[i].width))
             {
-                at = t = MIN(t, RECT_TOP(monitor_area[i]));
-                ab = b = MAX(b, RECT_BOTTOM(monitor_area[i]));
+                t = MIN(t, RECT_TOP(monitor_area[i]));
+                b = MAX(b, RECT_BOTTOM(monitor_area[i]));
             }
             if (RANGES_INTERSECT(search->y, search->height,
                                  monitor_area[i].y, monitor_area[i].height))
             {
-                al = l = MIN(l, RECT_LEFT(monitor_area[i]));
-                ar = r = MAX(r, RECT_RIGHT(monitor_area[i]));
+                l = MIN(l, RECT_LEFT(monitor_area[i]));
+                r = MAX(r, RECT_RIGHT(monitor_area[i]));
             }
         }
     } else {
-        al = l = RECT_LEFT(monitor_area[screen_num_monitors]);
-        at = t = RECT_TOP(monitor_area[screen_num_monitors]);
-        ar = r = RECT_RIGHT(monitor_area[screen_num_monitors]);
-        ab = b = RECT_BOTTOM(monitor_area[screen_num_monitors]);
+        l = RECT_LEFT(monitor_area[screen_num_monitors]);
+        t = RECT_TOP(monitor_area[screen_num_monitors]);
+        r = RECT_RIGHT(monitor_area[screen_num_monitors]);
+        b = RECT_BOTTOM(monitor_area[screen_num_monitors]);
     }
 
     for (d = 0; d < screen_num_desktops; ++d) {
@@ -1574,28 +1554,32 @@ Rect* screen_area(guint desktop, guint head, Rect *search)
                 if ((s->desktop == d || s->desktop == DESKTOP_ALL) &&
                     STRUT_LEFT_IN_SEARCH(s->strut, search) &&
                     !STRUT_LEFT_IGNORE(s->strut, us, search))
-                    l = MAX(l, al + s->strut->left);
+                    l = MAX(l, RECT_LEFT(monitor_area[screen_num_monitors])
+                               + s->strut->left);
             }
             for (it = struts_top; it; it = g_slist_next(it)) {
                 ObScreenStrut *s = it->data;
                 if ((s->desktop == d || s->desktop == DESKTOP_ALL) &&
                     STRUT_TOP_IN_SEARCH(s->strut, search) &&
                     !STRUT_TOP_IGNORE(s->strut, us, search))
-                    t = MAX(t, at + s->strut->top);
+                    t = MAX(t, RECT_TOP(monitor_area[screen_num_monitors])
+                               + s->strut->top);
             }
             for (it = struts_right; it; it = g_slist_next(it)) {
                 ObScreenStrut *s = it->data;
                 if ((s->desktop == d || s->desktop == DESKTOP_ALL) &&
                     STRUT_RIGHT_IN_SEARCH(s->strut, search) &&
                     !STRUT_RIGHT_IGNORE(s->strut, us, search))
-                    r = MIN(r, ar - s->strut->right);
+                    r = MIN(r, RECT_RIGHT(monitor_area[screen_num_monitors])
+                               - s->strut->right);
             }
             for (it = struts_bottom; it; it = g_slist_next(it)) {
                 ObScreenStrut *s = it->data;
                 if ((s->desktop == d || s->desktop == DESKTOP_ALL) &&
                     STRUT_BOTTOM_IN_SEARCH(s->strut, search) &&
                     !STRUT_BOTTOM_IGNORE(s->strut, us, search))
-                    b = MIN(b, ab - s->strut->bottom);
+                    b = MIN(b, RECT_BOTTOM(monitor_area[screen_num_monitors])
+                               - s->strut->bottom);
             }
 
             /* limit to this monitor */
@@ -1663,24 +1647,40 @@ gboolean screen_physical_area_monitor_contains(guint head, Rect *search)
     return RECT_INTERSECTS_RECT(monitor_area[head], *search);
 }
 
-Rect* screen_physical_area_active(void)
+guint screen_monitor_active(void)
 {
-    Rect *a;
-    gint x, y;
-
     if (moveresize_client)
-        a = screen_physical_area_monitor(client_monitor(focus_client));
+        return client_monitor(moveresize_client);
     else if (focus_client)
-        a = screen_physical_area_monitor(client_monitor(focus_client));
-    else {
-        Rect mon;
-        if (screen_pointer_pos(&x, &y))
-            RECT_SET(mon, x, y, 1, 1);
+        return client_monitor(focus_client);
+    else
+        return screen_monitor_pointer();
+}
+
+Rect* screen_physical_area_active(void)
+{
+    return screen_physical_area_monitor(screen_monitor_active());
+}
+
+guint screen_monitor_primary(gboolean fixed)
+{
+    if (config_primary_monitor_index > 0) {
+        if (config_primary_monitor_index-1 < screen_num_monitors)
+            return config_primary_monitor_index - 1;
         else
-            RECT_SET(mon, 0, 0, 1, 1);
-        a = screen_physical_area_monitor(screen_find_monitor(&mon));
+            return 0;
     }
-    return a;
+    else if (fixed)
+        return 0;
+    else if (config_primary_monitor == OB_PLACE_MONITOR_ACTIVE)
+        return screen_monitor_active();
+    else /* config_primary_monitor == OB_PLACE_MONITOR_MOUSE */
+        return screen_monitor_pointer();
+}
+
+Rect *screen_physical_area_primary(gboolean fixed)
+{
+    return screen_physical_area_monitor(screen_monitor_primary(fixed));
 }
 
 void screen_set_root_cursor(void)
@@ -1693,6 +1693,21 @@ void screen_set_root_cursor(void)
                       ob_cursor(OB_CURSOR_POINTER));
 }
 
+guint screen_find_monitor_point(guint x, guint y)
+{
+    Rect mon;
+    RECT_SET(mon, x, y, 1, 1);
+    return screen_find_monitor(&mon);
+}
+
+guint screen_monitor_pointer()
+{
+    gint x, y;
+    if (!screen_pointer_pos(&x, &y))
+        x = y = 0;
+    return screen_find_monitor_point(x, y);
+}
+
 gboolean screen_pointer_pos(gint *x, gint *y)
 {
     Window w;