add prop.[ch] to the libobt, but they are not used yet. add a global obt_display...
[dana/openbox.git] / openbox / screen.c
index 8bab662..e8a175d 100644 (file)
 #include "debug.h"
 #include "openbox.h"
 #include "dock.h"
-#include "xerror.h"
 #include "prop.h"
 #include "grab.h"
 #include "startupnotify.h"
 #include "moveresize.h"
 #include "config.h"
+#include "mainloop.h"
 #include "screen.h"
 #include "client.h"
 #include "session.h"
@@ -33,9 +33,9 @@
 #include "event.h"
 #include "focus.h"
 #include "popup.h"
-#include "extensions.h"
 #include "render/render.h"
 #include "gettext.h"
+#include "obt/display.h"
 
 #include <X11/Xlib.h>
 #ifdef HAVE_UNISTD_H
                         ButtonPressMask | ButtonReleaseMask)
 
 static gboolean screen_validate_layout(ObDesktopLayout *l);
-static gboolean replace_wm();
-static void     screen_tell_ksplash();
+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;
-Size     screen_physical_size;
+guint    screen_last_desktop = 1;
 gboolean screen_showing_desktop;
 ObDesktopLayout screen_desktop_layout;
 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 */
 static Rect  *monitor_area = NULL;
 /*! An array of desktops, holding an array of struts */
@@ -73,9 +76,13 @@ static GSList *struts_left = NULL;
 static GSList *struts_right = NULL;
 static GSList *struts_bottom = NULL;
 
-static ObPagerPopup *desktop_cycle_popup;
+static ObPagerPopup *desktop_popup;
 
-static gboolean replace_wm()
+/*! The number of microseconds that you need to be on a desktop before it will
+  replace the remembered "last desktop" */
+#define REMEMBER_LAST_DESKTOP_TIME 750000
+
+static gboolean replace_wm(void)
 {
     gchar *wm_sn;
     Atom wm_sn_atom;
@@ -95,34 +102,18 @@ static gboolean replace_wm()
                       ob_screen);
             return FALSE;
         }
-        xerror_set_ignore(TRUE);
-        xerror_occured = FALSE;
+        obt_display_ignore_errors(TRUE);
 
         /* We want to find out when the current selection owner dies */
         XSelectInput(ob_display, current_wm_sn_owner, StructureNotifyMask);
         XSync(ob_display, FALSE);
 
-        xerror_set_ignore(FALSE);
-        if (xerror_occured)
+        obt_display_ignore_errors(FALSE);
+        if (obt_display_error_occured)
             current_wm_sn_owner = None;
     }
 
-    {
-        /* Generate a timestamp */
-        XEvent event;
-
-        XSelectInput(ob_display, screen_support_win, PropertyChangeMask);
-
-        XChangeProperty(ob_display, screen_support_win,
-                        prop_atoms.wm_class, prop_atoms.string,
-                        8, PropModeAppend, NULL, 0);
-        XWindowEvent(ob_display, screen_support_win,
-                     PropertyChangeMask, &event);
-
-        XSelectInput(ob_display, screen_support_win, NoEventMask);
-
-        timestamp = event.xproperty.time;
-    }
+    timestamp = event_get_server_time();
 
     XSetSelectionOwner(ob_display, wm_sn_atom, screen_support_win,
                        timestamp);
@@ -162,7 +153,7 @@ static gboolean replace_wm()
     return TRUE;
 }
 
-gboolean screen_annex()
+gboolean screen_annex(void)
 {
     XSetWindowAttributes attrib;
     pid_t pid;
@@ -172,12 +163,14 @@ gboolean screen_annex()
 
     /* create the netwm support window */
     attrib.override_redirect = TRUE;
+    attrib.event_mask = PropertyChangeMask;
     screen_support_win = XCreateWindow(ob_display,
                                        RootWindow(ob_display, ob_screen),
                                        -100, -100, 1, 1, 0,
                                        CopyFromParent, InputOutput,
                                        CopyFromParent,
-                                       CWOverrideRedirect, &attrib);
+                                       CWEventMask | CWOverrideRedirect,
+                                       &attrib);
     XMapWindow(ob_display, screen_support_win);
     XLowerWindow(ob_display, screen_support_win);
 
@@ -186,12 +179,11 @@ gboolean screen_annex()
         return FALSE;
     }
 
-    xerror_set_ignore(TRUE);
-    xerror_occured = FALSE;
+    obt_display_ignore_errors(TRUE);
     XSelectInput(ob_display, RootWindow(ob_display, ob_screen),
                  ROOT_EVENTMASK);
-    xerror_set_ignore(FALSE);
-    if (xerror_occured) {
+    obt_display_ignore_errors(FALSE);
+    if (obt_display_error_occured) {
         g_message(_("A window manager is already running on screen %d"),
                   ob_screen);
 
@@ -282,8 +274,8 @@ gboolean screen_annex()
     supported[i++] = prop_atoms.net_wm_state_demands_attention;
     supported[i++] = prop_atoms.net_moveresize_window;
     supported[i++] = prop_atoms.net_wm_moveresize;
-/*
     supported[i++] = prop_atoms.net_wm_user_time;
+/*
     supported[i++] = prop_atoms.net_wm_user_time_window;
 */
     supported[i++] = prop_atoms.net_frame_extents;
@@ -294,6 +286,8 @@ gboolean screen_annex()
     supported[i++] = prop_atoms.net_wm_sync_request;
     supported[i++] = prop_atoms.net_wm_sync_request_counter;
 #endif
+    supported[i++] = prop_atoms.net_wm_pid;
+    supported[i++] = prop_atoms.net_wm_ping;
 
     supported[i++] = prop_atoms.kde_wm_change_state;
     supported[i++] = prop_atoms.kde_net_wm_frame_strut;
@@ -315,7 +309,7 @@ gboolean screen_annex()
     return TRUE;
 }
 
-static void screen_tell_ksplash()
+static void screen_tell_ksplash(void)
 {
     XEvent e;
     char **argv;
@@ -355,12 +349,12 @@ void screen_startup(gboolean reconfig)
     guint32 d;
     gboolean namesexist = FALSE;
 
-    desktop_cycle_popup = pager_popup_new(FALSE);
-    pager_popup_height(desktop_cycle_popup, POPUP_HEIGHT);
+    desktop_popup = pager_popup_new();
+    pager_popup_height(desktop_popup, POPUP_HEIGHT);
 
     if (reconfig) {
         /* update the pager popup's width */
-        pager_popup_text_width_to_strings(desktop_cycle_popup,
+        pager_popup_text_width_to_strings(desktop_popup,
                                           screen_desktop_names,
                                           screen_num_desktops);
         return;
@@ -443,7 +437,7 @@ void screen_startup(gboolean reconfig)
 
 void screen_shutdown(gboolean reconfig)
 {
-    pager_popup_free(desktop_cycle_popup);
+    pager_popup_free(desktop_popup);
 
     if (reconfig)
         return;
@@ -464,7 +458,7 @@ void screen_shutdown(gboolean reconfig)
     screen_desktop_names = NULL;
 }
 
-void screen_resize()
+void screen_resize(void)
 {
     static gint oldw = 0, oldh = 0;
     gint w, h;
@@ -547,44 +541,11 @@ void screen_set_num_desktops(guint num)
         screen_set_desktop(num - 1, TRUE);
 }
 
-void screen_set_desktop(guint num, gboolean dofocus)
+static void screen_fallback_focus(void)
 {
     ObClient *c;
-    GList *it;
-    guint old;
-    gulong ignore_start;
     gboolean allow_omni;
 
-    g_assert(num < screen_num_desktops);
-
-    old = screen_desktop;
-    screen_desktop = num;
-
-    if (old == num) return;
-
-    PROP_SET32(RootWindow(ob_display, ob_screen),
-               net_current_desktop, cardinal, num);
-
-    screen_last_desktop = old;
-
-    ob_debug("Moving to desktop %d\n", num+1);
-
-    /* ignore enter events caused by the move */
-    ignore_start = event_start_ignore_all_enters();
-
-    if (moveresize_client)
-        client_set_desktop(moveresize_client, num, TRUE, FALSE);
-
-    /* show windows before hiding the rest to lessen the enter/leave events */
-
-    /* show windows from top to bottom */
-    for (it = stacking_list; it; it = g_list_next(it)) {
-        if (WINDOW_IS_CLIENT(it->data)) {
-            ObClient *c = it->data;
-            client_show(c);
-        }
-    }
-
     /* only allow omnipresent windows to get focus on desktop change if
        an omnipresent window is already focused (it'll keep focus probably, but
        maybe not depending on mouse-focus options) */
@@ -594,7 +555,7 @@ void screen_set_desktop(guint num, gboolean dofocus)
     /* the client moved there already so don't move focus. prevent flicker
        on sendtodesktop + follow */
     if (focus_client && focus_client->desktop == screen_desktop)
-        dofocus = FALSE;
+        return;
 
     /* have to try focus here because when you leave an empty desktop
        there is no focus out to watch for. also, we have different rules
@@ -604,7 +565,8 @@ void screen_set_desktop(guint num, gboolean dofocus)
        do this before hiding the windows so if helper windows are coming
        with us, they don't get hidden
     */
-    if (dofocus && (c = focus_fallback(TRUE, !config_focus_last, allow_omni)))
+    if ((c = focus_fallback(TRUE, !config_focus_last, allow_omni,
+                            !allow_omni)))
     {
         /* only do the flicker reducing stuff ahead of time if we are going
            to call xsetinputfocus on the window ourselves. otherwise there is
@@ -618,6 +580,112 @@ void screen_set_desktop(guint num, gboolean dofocus)
             client_bring_helper_windows(c);
         }
     }
+}
+
+static gboolean last_desktop_func(gpointer data)
+{
+    screen_desktop_timeout = TRUE;
+    return FALSE;
+}
+
+void screen_set_desktop(guint num, gboolean dofocus)
+{
+    GList *it;
+    guint previous;
+    gulong ignore_start;
+
+    g_assert(num < screen_num_desktops);
+
+    previous = screen_desktop;
+    screen_desktop = num;
+
+    if (previous == num) return;
+
+    PROP_SET32(RootWindow(ob_display, ob_screen),
+               net_current_desktop, cardinal, num);
+
+    /* This whole thing decides when/how to save the screen_last_desktop so
+       that it can be restored later if you want */
+    if (screen_desktop_timeout) {
+        /* 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;
+    }
+    else {
+        /* If screen_desktop_timeout is false, then we just got to this desktop
+           and we are moving away again. */
+
+        if (screen_desktop == screen_last_desktop) {
+            /* If we are moving to the "last desktop" .. */
+            if (previous == screen_old_desktop) {
+                /* .. from the "old desktop", change the last desktop to
+                   be where we are coming from */
+                screen_last_desktop = screen_old_desktop;
+            }
+            else if (screen_last_desktop == screen_old_desktop) {
+                /* .. and also to the "old desktop", change the "last
+                   desktop" to be where we are coming from */
+                screen_last_desktop = previous;
+            }
+            else {
+                /* .. from some other desktop, then set the "last desktop" to
+                   be the saved "old desktop", i.e. where we were before the
+                   "last desktop" */
+                screen_last_desktop = screen_old_desktop;
+            }
+        }
+        else {
+            /* If we are moving to any desktop besides the "last desktop"..
+               (this is the normal case) */
+            if (screen_desktop == screen_old_desktop) {
+                /* If moving to the "old desktop", which is not the
+                   "last desktop", don't save anything */
+            }
+            else if (previous == screen_old_desktop) {
+                /* If moving from the "old desktop", and not to the
+                   "last desktop", don't save anything */
+            }
+            else if (screen_last_desktop == screen_old_desktop) {
+                /* If the "last desktop" is the same as "old desktop" and
+                   you're not moving to the "last desktop" then save where
+                   we're coming from as the "last desktop" */
+                screen_last_desktop = previous;
+            }
+            else {
+                /* If the "last desktop" is different from the "old desktop"
+                   and you're not moving to the "last desktop", then don't save
+                   anything */
+            }
+        }
+    }
+    screen_desktop_timeout = FALSE;
+    ob_main_loop_timeout_remove(ob_main_loop, last_desktop_func);
+    ob_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);
+
+    /* ignore enter events caused by the move */
+    ignore_start = event_start_ignore_all_enters();
+
+    if (moveresize_client)
+        client_set_desktop(moveresize_client, num, TRUE, FALSE);
+
+    /* show windows before hiding the rest to lessen the enter/leave events */
+
+    /* show windows from top to bottom */
+    for (it = stacking_list; it; it = g_list_next(it)) {
+        if (WINDOW_IS_CLIENT(it->data)) {
+            ObClient *c = it->data;
+            client_show(c);
+        }
+    }
+
+    if (dofocus) screen_fallback_focus();
 
     /* hide windows from bottom to top */
     for (it = g_list_last(stacking_list); it; it = g_list_previous(it)) {
@@ -631,10 +699,18 @@ 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)
 {
+    gulong ignore_start;
+
+    /* ignore enter events caused by this */
+    ignore_start = event_start_ignore_all_enters();
+
     screen_set_num_desktops(screen_num_desktops+1);
 
     /* move all the clients over */
@@ -653,15 +729,21 @@ void screen_add_desktop(gboolean current)
             }
         }
     }
+
+    event_end_ignore_all_enters(ignore_start);
 }
 
 void screen_remove_desktop(gboolean current)
 {
     guint rmdesktop, movedesktop;
     GList *it, *stacking_copy;
+    gulong ignore_start;
 
     if (screen_num_desktops <= 1) return;
 
+    /* ignore enter events caused by this */
+    ignore_start = event_start_ignore_all_enters();
+
     /* what desktop are we removing and moving to? */
     if (current)
         rmdesktop = screen_desktop;
@@ -698,15 +780,15 @@ void screen_remove_desktop(gboolean current)
         }
     }
 
-    /* act like we're changing desktops */
+    /* fallback focus like we're changing desktops */
     if (screen_desktop < screen_num_desktops - 1) {
-        gint d = screen_desktop;
-        screen_desktop = screen_last_desktop;
-        screen_set_desktop(d, TRUE);
+        screen_fallback_focus();
         ob_debug("fake desktop change\n");
     }
 
     screen_set_num_desktops(screen_num_desktops-1);
+
+    event_end_ignore_all_enters(ignore_start);
 }
 
 static void get_row_col(guint d, guint *r, guint *c)
@@ -817,25 +899,41 @@ static guint translate_row_col(guint r, guint c)
     return 0;
 }
 
-void screen_desktop_popup(guint d, gboolean show)
+static gboolean hide_desktop_popup_func(gpointer data)
+{
+    pager_popup_hide(desktop_popup);
+    return FALSE; /* don't repeat */
+}
+
+void screen_show_desktop_popup(guint d)
 {
     Rect *a;
 
-    if (!show) {
-        pager_popup_hide(desktop_cycle_popup);
-    } else {
-        a = screen_physical_area_active();
-        pager_popup_position(desktop_cycle_popup, CenterGravity,
-                             a->x + a->width / 2, a->y + a->height / 2);
-        pager_popup_icon_size_multiplier(desktop_cycle_popup,
-                                         (screen_desktop_layout.columns /
-                                          screen_desktop_layout.rows) / 2,
-                                         (screen_desktop_layout.rows/
-                                          screen_desktop_layout.columns) / 2);
-        pager_popup_max_width(desktop_cycle_popup,
-                              MAX(a->width/3, POPUP_WIDTH));
-        pager_popup_show(desktop_cycle_popup, screen_desktop_names[d], d);
-    }
+    /* 0 means don't show the popup */
+    if (!config_desktop_popup_time) return;
+
+    a = screen_physical_area_active();
+    pager_popup_position(desktop_popup, CenterGravity,
+                         a->x + a->width / 2, a->y + a->height / 2);
+    pager_popup_icon_size_multiplier(desktop_popup,
+                                     (screen_desktop_layout.columns /
+                                      screen_desktop_layout.rows) / 2,
+                                     (screen_desktop_layout.rows/
+                                      screen_desktop_layout.columns) / 2);
+    pager_popup_max_width(desktop_popup,
+                          MAX(a->width/3, POPUP_WIDTH));
+    pager_popup_show(desktop_popup, screen_desktop_names[d], d);
+
+    ob_main_loop_timeout_remove(ob_main_loop, hide_desktop_popup_func);
+    ob_main_loop_timeout_add(ob_main_loop, config_desktop_popup_time * 1000,
+                             hide_desktop_popup_func, NULL, NULL, NULL);
+    g_free(a);
+}
+
+void screen_hide_desktop_popup(void)
+{
+    ob_main_loop_timeout_remove(ob_main_loop, hide_desktop_popup_func);
+    pager_popup_hide(desktop_popup);
 }
 
 guint screen_find_desktop(guint from, ObDirection dir,
@@ -944,30 +1042,6 @@ guint screen_find_desktop(guint from, ObDirection dir,
     return d;
 }
 
-guint screen_cycle_desktop(ObDirection dir, gboolean wrap, gboolean linear,
-                           gboolean dialog, gboolean done, gboolean cancel)
-{
-    static guint d = (guint)-1;
-    guint ret;
-
-    if (d == (guint)-1)
-        d = screen_desktop;
-
-    if ((!cancel && !done) || !dialog)
-        d = screen_find_desktop(d, dir, wrap, linear);
-
-    if (dialog && !cancel && !done)
-        screen_desktop_popup(d, TRUE);
-    else
-        screen_desktop_popup(0, FALSE);
-    ret = d;
-
-    if (!dialog || cancel || done)
-        d = (guint)-1;
-
-    return ret;
-}
-
 static gboolean screen_validate_layout(ObDesktopLayout *l)
 {
     if (l->columns == 0 && l->rows == 0) /* both 0's is bad data.. */
@@ -1005,7 +1079,7 @@ static gboolean screen_validate_layout(ObDesktopLayout *l)
     return TRUE;
 }
 
-void screen_update_layout()
+void screen_update_layout(void)
 
 {
     ObDesktopLayout l;
@@ -1054,7 +1128,7 @@ void screen_update_layout()
     }
 }
 
-void screen_update_desktop_names()
+void screen_update_desktop_names(void)
 {
     guint i;
 
@@ -1094,7 +1168,7 @@ void screen_update_desktop_names()
     }
 
     /* resize the pager for these names */
-    pager_popup_text_width_to_strings(desktop_cycle_popup,
+    pager_popup_text_width_to_strings(desktop_popup,
                                       screen_desktop_names,
                                       screen_num_desktops);
 }
@@ -1144,7 +1218,7 @@ void screen_show_desktop(gboolean show, ObClient *show_only)
     else if (!show_only) {
         ObClient *c;
 
-        if ((c = focus_fallback(TRUE, FALSE, TRUE))) {
+        if ((c = focus_fallback(TRUE, FALSE, TRUE, FALSE))) {
             /* only do the flicker reducing stuff ahead of time if we are going
                to call xsetinputfocus on the window ourselves. otherwise there
                is no guarantee the window will actually take focus.. */
@@ -1165,16 +1239,16 @@ void screen_install_colormap(ObClient *client, gboolean install)
 {
     if (client == NULL || client->colormap == None) {
         if (install)
-            XInstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
+            XInstallColormap(ob_display, RrColormap(ob_rr_inst));
         else
-            XUninstallColormap(RrDisplay(ob_rr_inst), RrColormap(ob_rr_inst));
+            XUninstallColormap(ob_display, RrColormap(ob_rr_inst));
     } else {
-        xerror_set_ignore(TRUE);
+        obt_display_ignore_errors(TRUE);
         if (install)
-            XInstallColormap(RrDisplay(ob_rr_inst), client->colormap);
+            XInstallColormap(ob_display, client->colormap);
         else
-            XUninstallColormap(RrDisplay(ob_rr_inst), client->colormap);
-        xerror_set_ignore(FALSE);
+            XUninstallColormap(ob_display, client->colormap);
+        obt_display_ignore_errors(FALSE);
     }
 }
 
@@ -1216,7 +1290,56 @@ typedef struct {
     } \
 }
 
-void screen_update_areas()
+static void get_xinerama_screens(Rect **xin_areas, guint *nxin)
+{
+    guint i;
+    gint l, r, t, b;
+
+    if (ob_debug_xinerama) {
+        g_print("Using fake xinerama !\n");
+        gint w = WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen));
+        gint h = HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen));
+        *nxin = 2;
+        *xin_areas = g_new(Rect, *nxin + 1);
+        RECT_SET((*xin_areas)[0], 0, 0, w/2, h);
+        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(ob_display, &n);
+        *nxin = n;
+        *xin_areas = g_new(Rect, *nxin + 1);
+        for (i = 0; i < *nxin; ++i)
+            RECT_SET((*xin_areas)[i], info[i].x_org, info[i].y_org,
+                     info[i].width, info[i].height);
+        XFree(info);
+    }
+#endif
+    else {
+        *nxin = 1;
+        *xin_areas = g_new(Rect, *nxin + 1);
+        RECT_SET((*xin_areas)[0], 0, 0,
+                 WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen)),
+                 HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen)));
+    }
+
+    /* returns one extra with the total area in it */
+    l = (*xin_areas)[0].x;
+    t = (*xin_areas)[0].y;
+    r = (*xin_areas)[0].x + (*xin_areas)[0].width - 1;
+    b = (*xin_areas)[0].y + (*xin_areas)[0].height - 1;
+    for (i = 1; i < *nxin; ++i) {
+        l = MIN(l, (*xin_areas)[i].x);
+        t = MIN(l, (*xin_areas)[i].y);
+        r = MAX(r, (*xin_areas)[i].x + (*xin_areas)[i].width - 1);
+        b = MAX(b, (*xin_areas)[i].y + (*xin_areas)[i].height - 1);
+    }
+    RECT_SET((*xin_areas)[*nxin], l, t, r - l + 1, b - t + 1);
+}
+
+void screen_update_areas(void)
 {
     guint i, j;
     gulong *dims;
@@ -1224,7 +1347,7 @@ void screen_update_areas()
     GSList *sit;
 
     g_free(monitor_area);
-    extensions_xinerama_screens(&monitor_area, &screen_num_monitors);
+    get_xinerama_screens(&monitor_area, &screen_num_monitors);
 
     /* set up the user-specified margins */
     config_margins.top_start = RECT_LEFT(monitor_area[screen_num_monitors]);
@@ -1508,7 +1631,7 @@ Rect* screen_area(guint desktop, guint head, Rect *search)
 guint screen_find_monitor(Rect *search)
 {
     guint i;
-    guint most = 0;
+    guint most = screen_num_monitors;
     guint mostv = 0;
 
     for (i = 0; i < screen_num_monitors; ++i) {
@@ -1530,7 +1653,7 @@ guint screen_find_monitor(Rect *search)
     return most;
 }
 
-Rect* screen_physical_area_all_monitors()
+Rect* screen_physical_area_all_monitors(void)
 {
     return screen_physical_area_monitor(screen_num_monitors);
 }
@@ -1552,7 +1675,7 @@ gboolean screen_physical_area_monitor_contains(guint head, Rect *search)
     return RECT_INTERSECTS_RECT(monitor_area[head], *search);
 }
 
-Rect* screen_physical_area_active()
+Rect* screen_physical_area_active(void)
 {
     Rect *a;
     gint x, y;
@@ -1572,7 +1695,7 @@ Rect* screen_physical_area_active()
     return a;
 }
 
-void screen_set_root_cursor()
+void screen_set_root_cursor(void)
 {
     if (sn_app_starting())
         XDefineCursor(ob_display, RootWindow(ob_display, ob_screen),