merge the C branch into HEAD

1 files changed, 526 insertions, 0 deletions

diff --git a/openbox/screen.c b/openbox/screen.c
new file mode 100644
index 00000000..d077c495
--- /dev/null
+++ b/openbox/screen.c
@@ -0,0 +1,526 @@
+#include "openbox.h"
+#include "prop.h"
+#include "screen.h"
+#include "client.h"
+#include "focus.h"
+
+#include <X11/Xlib.h>
+#ifdef HAVE_UNISTD_H
+#  include <sys/types.h>
+#  include <unistd.h>
+#endif
+
+/*! The event mask to grab on the root window */
+#define ROOT_EVENTMASK (/*ColormapChangeMask |*/ PropertyChangeMask | \
+			EnterWindowMask | LeaveWindowMask | \
+			SubstructureNotifyMask | SubstructureRedirectMask | \
+			ButtonPressMask | ButtonReleaseMask | ButtonMotionMask)
+
+guint    screen_num_desktops    = 1;
+guint    screen_desktop         = 0;
+Size     screen_physical_size;
+gboolean screen_showing_desktop;
+DesktopLayout screen_desktop_layout;
+GPtrArray *screen_desktop_names;
+
+static Rect  *area = NULL;
+static Strut *strut = NULL;
+
+static void screen_update_area();
+
+static gboolean running;
+static int another_running(Display *d, XErrorEvent *e)
+{
+    (void)d;(void)e;
+    g_message("A window manager is already running on screen %d",
+	      ob_screen);
+    running = TRUE;
+    return -1;
+}
+
+gboolean screen_annex()
+{
+    XErrorHandler old;
+    Window support;
+    pid_t pid;
+    int i, num_support;
+    Atom *supported;
+
+    running = FALSE;
+    old = XSetErrorHandler(another_running);
+    XSelectInput(ob_display, ob_root, ROOT_EVENTMASK);
+    XSync(ob_display, FALSE);
+    XSetErrorHandler(old);
+    if (running)
+	return FALSE;
+
+    g_message("Managing screen %d", ob_screen);
+
+    /* set the mouse cursor for the root window (the default cursor) */
+    XDefineCursor(ob_display, ob_root, ob_cursors.left_ptr);
+
+    /* set the OPENBOX_PID hint */
+    pid = getpid();
+    PROP_SET32(ob_root, openbox_pid, cardinal, pid);
+
+    /* create the netwm support window */
+    support = XCreateSimpleWindow(ob_display, ob_root, 0, 0, 1, 1, 0, 0, 0);
+
+    /* set supporting window */
+    PROP_SET32(ob_root, net_supporting_wm_check, window, support);
+
+    /* set properties on the supporting window */
+    PROP_SETS(support, net_wm_name, utf8, "Openbox");
+    PROP_SET32(support, net_supporting_wm_check, window, support);
+
+    /* set the _NET_SUPPORTED_ATOMS hint */
+    num_support = 48;
+    i = 0;
+    supported = g_new(Atom, num_support);
+    supported[i++] = prop_atoms.net_current_desktop;
+    supported[i++] = prop_atoms.net_number_of_desktops;
+    supported[i++] = prop_atoms.net_desktop_geometry;
+    supported[i++] = prop_atoms.net_desktop_viewport;
+    supported[i++] = prop_atoms.net_active_window;
+    supported[i++] = prop_atoms.net_workarea;
+    supported[i++] = prop_atoms.net_client_list;
+    supported[i++] = prop_atoms.net_client_list_stacking;
+    supported[i++] = prop_atoms.net_desktop_names;
+    supported[i++] = prop_atoms.net_close_window;
+    supported[i++] = prop_atoms.net_desktop_layout;
+    supported[i++] = prop_atoms.net_showing_desktop;
+    supported[i++] = prop_atoms.net_wm_name;
+    supported[i++] = prop_atoms.net_wm_visible_name;
+    supported[i++] = prop_atoms.net_wm_icon_name;
+    supported[i++] = prop_atoms.net_wm_visible_icon_name;
+    supported[i++] = prop_atoms.net_wm_desktop;
+    supported[i++] = prop_atoms.net_wm_strut;
+    supported[i++] = prop_atoms.net_wm_window_type;
+    supported[i++] = prop_atoms.net_wm_window_type_desktop;
+    supported[i++] = prop_atoms.net_wm_window_type_dock;
+    supported[i++] = prop_atoms.net_wm_window_type_toolbar;
+    supported[i++] = prop_atoms.net_wm_window_type_menu;
+    supported[i++] = prop_atoms.net_wm_window_type_utility;
+    supported[i++] = prop_atoms.net_wm_window_type_splash;
+    supported[i++] = prop_atoms.net_wm_window_type_dialog;
+    supported[i++] = prop_atoms.net_wm_window_type_normal;
+    supported[i++] = prop_atoms.net_wm_allowed_actions;
+    supported[i++] = prop_atoms.net_wm_action_move;
+    supported[i++] = prop_atoms.net_wm_action_resize;
+    supported[i++] = prop_atoms.net_wm_action_minimize;
+    supported[i++] = prop_atoms.net_wm_action_shade;
+    supported[i++] = prop_atoms.net_wm_action_maximize_horz;
+    supported[i++] = prop_atoms.net_wm_action_maximize_vert;
+    supported[i++] = prop_atoms.net_wm_action_fullscreen;
+    supported[i++] = prop_atoms.net_wm_action_change_desktop;
+    supported[i++] = prop_atoms.net_wm_action_close;
+    supported[i++] = prop_atoms.net_wm_state;
+    supported[i++] = prop_atoms.net_wm_state_modal;
+    supported[i++] = prop_atoms.net_wm_state_maximized_vert;
+    supported[i++] = prop_atoms.net_wm_state_maximized_horz;
+    supported[i++] = prop_atoms.net_wm_state_shaded;
+    supported[i++] = prop_atoms.net_wm_state_skip_taskbar;
+    supported[i++] = prop_atoms.net_wm_state_skip_pager;
+    supported[i++] = prop_atoms.net_wm_state_hidden;
+    supported[i++] = prop_atoms.net_wm_state_fullscreen;
+    supported[i++] = prop_atoms.net_wm_state_above;
+    supported[i++] = prop_atoms.net_wm_state_below;
+    g_assert(i == num_support);
+/*
+  supported[] = prop_atoms.net_wm_moveresize;
+  supported[] = prop_atoms.net_wm_moveresize_size_topleft;
+  supported[] = prop_atoms.net_wm_moveresize_size_topright;
+  supported[] = prop_atoms.net_wm_moveresize_size_bottomleft;
+  supported[] = prop_atoms.net_wm_moveresize_size_bottomright;
+  supported[] = prop_atoms.net_wm_moveresize_move;
+  supported[] = prop_atoms.net_wm_action_stick;
+*/
+
+    PROP_SET32A(ob_root, net_supported, atom, supported, num_support);
+    g_free(supported);
+
+    return TRUE;
+}
+
+void screen_startup()
+{
+    screen_desktop_names = g_ptr_array_new();
+     
+    /* get the initial size */
+    screen_resize();
+
+    screen_set_num_desktops(4);
+    screen_set_desktop(0);
+
+    /* don't start in showing-desktop mode */
+    screen_showing_desktop = FALSE;
+    PROP_SET32(ob_root, net_showing_desktop, cardinal, screen_showing_desktop);
+
+    screen_update_layout();
+}
+
+void screen_shutdown()
+{
+    guint i;
+    for (i = 0; i < screen_desktop_names->len; ++i)
+	g_free(g_ptr_array_index(screen_desktop_names, i));
+    g_ptr_array_free(screen_desktop_names, TRUE);
+    g_free(strut);
+    g_free(area);
+}
+
+void screen_resize()
+{
+    /* Set the _NET_DESKTOP_GEOMETRY hint */
+    /* XXX RandR support here? */
+    int geometry[2];
+
+    geometry[0] = WidthOfScreen(ScreenOfDisplay(ob_display, ob_screen));
+    geometry[1] = HeightOfScreen(ScreenOfDisplay(ob_display, ob_screen));
+    PROP_SET32A(ob_root, net_desktop_geometry, cardinal, geometry, 2);
+    screen_physical_size.width = geometry[0];
+    screen_physical_size.height = geometry[1];
+
+    if (ob_state == State_Starting)
+	return;
+
+    screen_update_struts();
+
+    /* XXX adjust more stuff ? */
+}
+
+void screen_set_num_desktops(guint num)
+{
+    unsigned long *viewport;
+     
+    g_assert(num > 0);
+  
+    /* move windows on desktops that will no longer exist! */
+    /* XXX
+       std::list<Client*>::iterator it, end = clients.end();
+       for (it = clients.begin(); it != end; ++it) {
+       unsigned int d = (*it)->desktop();
+       if (d >= num && d != 0xffffffff) {
+       XEvent ce;
+       ce.xclient.type = ClientMessage;
+       ce.xclient.message_type = otk::Property::atoms.net_wm_desktop;
+       ce.xclient.display = **otk::display;
+       ce.xclient.window = (*it)->window();
+       ce.xclient.format = 32;
+       ce.xclient.data.l[0] = num - 1;
+       XSendEvent(**otk::display, _info->rootWindow(), false,
+       SubstructureNotifyMask | SubstructureRedirectMask, &ce);
+       }
+       }
+    */
+
+    screen_num_desktops = num;
+    PROP_SET32(ob_root, net_number_of_desktops, cardinal, num);
+
+    /* set the viewport hint */
+    viewport = g_new0(unsigned long, num * 2);
+    PROP_SET32A(ob_root, net_desktop_viewport, cardinal, viewport, num * 2);
+    g_free(viewport);
+
+    /* change our struts/area to match */
+    screen_update_struts();
+
+    /* the number of rows/columns will differ */
+    screen_update_layout();
+
+    /* may be some unnamed desktops that we need to fill in with names */
+    screen_update_desktop_names();
+
+    /* change our desktop if we're on one that no longer exists! */
+    if (screen_desktop >= screen_num_desktops)
+	screen_set_desktop(num - 1);
+}
+
+void screen_set_desktop(guint num)
+{
+    GList *it;
+
+    guint old = screen_desktop;
+     
+    g_assert(num < screen_num_desktops);
+
+    g_message("Moving to desktop %u", num);
+  
+    screen_desktop = num;
+    PROP_SET32(ob_root, net_current_desktop, cardinal, num);
+
+    if (old == num) return;
+
+    for (it = stacking_list; it != NULL; it = it->next)
+	client_showhide(it->data, FALSE);
+
+    /* force the callbacks to fire */
+    if (focus_client == NULL)
+	focus_set_client(NULL);
+}
+
+void screen_update_layout()
+{
+    unsigned long *data = NULL;
+
+    /* defaults */
+    screen_desktop_layout.orientation = prop_atoms.net_wm_orientation_horz;
+    screen_desktop_layout.start_corner = prop_atoms.net_wm_topleft;
+    screen_desktop_layout.rows = 1;
+    screen_desktop_layout.columns = screen_num_desktops;
+
+    if (PROP_GET32A(ob_root, net_desktop_layout, cardinal, data, 4)) {
+	if (data[0] == prop_atoms.net_wm_orientation_vert)
+	    screen_desktop_layout.orientation = data[0];
+	if (data[3] == prop_atoms.net_wm_topright)
+	    screen_desktop_layout.start_corner = data[3];
+	else if (data[3] == prop_atoms.net_wm_bottomright)
+	    screen_desktop_layout.start_corner = data[3];
+	else if (data[3] == prop_atoms.net_wm_bottomleft)
+	    screen_desktop_layout.start_corner = data[3];
+
+	/* fill in a zero rows/columns */
+	if (!(data[1] == 0 && data[2] == 0)) { /* both 0's is bad data.. */
+	    if (data[1] == 0) {
+		data[1] = (screen_num_desktops +
+			   screen_num_desktops % data[2]) / data[2];
+	    } else if (data[2] == 0) {
+		data[2] = (screen_num_desktops +
+			   screen_num_desktops % data[1]) / data[1];
+	    }
+	    screen_desktop_layout.columns = data[1];
+	    screen_desktop_layout.rows = data[2];
+	}
+
+	/* bounds checking */
+	if (screen_desktop_layout.orientation ==
+	    prop_atoms.net_wm_orientation_horz) {
+	    if (screen_desktop_layout.rows > screen_num_desktops)
+		screen_desktop_layout.rows = screen_num_desktops;
+	    if (screen_desktop_layout.columns > ((screen_num_desktops +
+						  screen_num_desktops %
+						  screen_desktop_layout.rows) /
+						 screen_desktop_layout.rows))
+		screen_desktop_layout.columns =
+		    (screen_num_desktops + screen_num_desktops %
+		     screen_desktop_layout.rows) /
+		    screen_desktop_layout.rows;
+	} else {
+	    if (screen_desktop_layout.columns > screen_num_desktops)
+		screen_desktop_layout.columns = screen_num_desktops;
+	    if (screen_desktop_layout.rows > ((screen_num_desktops +
+					       screen_num_desktops %
+					       screen_desktop_layout.columns) /
+					      screen_desktop_layout.columns))
+		screen_desktop_layout.rows =
+		    (screen_num_desktops + screen_num_desktops %
+		     screen_desktop_layout.columns) /
+		    screen_desktop_layout.columns;
+	}
+	g_free(data);
+    }
+}
+
+void screen_update_desktop_names()
+{
+    guint i;
+
+    /* empty the array */
+    for (i = 0; i < screen_desktop_names->len; ++i)
+	g_free(g_ptr_array_index(screen_desktop_names, i));
+    g_ptr_array_set_size(screen_desktop_names, 0);
+
+    PROP_GETSA(ob_root, net_desktop_names, utf8, screen_desktop_names);
+
+    while (screen_desktop_names->len < screen_num_desktops)
+	g_ptr_array_add(screen_desktop_names, g_strdup("Unnamed Desktop"));
+}
+
+void screen_show_desktop(gboolean show)
+{
+    GList *it;
+    static Window saved_focus = 0;
+     
+    if (show == screen_showing_desktop) return; /* no change */
+
+    /* save the window focus, and restore it when leaving the show-desktop
+       mode */
+    if (show && focus_client)
+	saved_focus = focus_client->window;
+  
+    screen_showing_desktop = show;
+
+    if (show) {
+	/* bottom to top */
+	for (it = g_list_last(stacking_list); it != NULL; it = it->prev) {
+	    Client *client = it->data;
+	    if (client->type == Type_Desktop)
+		client_focus(client);
+	    else
+		client_showhide(client, FALSE);
+	}
+    } else {
+        /* top to bottom */
+	for (it = stacking_list; it != NULL; it = it->next) {
+	    Client *client = it->data;
+	    if (client->type != Type_Desktop)
+		client_showhide(client, FALSE);
+	}
+    }
+
+    if (!show) {
+	Client *f = focus_client;
+	if (!f || f->type == Type_Desktop) {
+	    Client *c = g_hash_table_lookup(client_map,
+					    (gpointer)saved_focus);
+	    if (c) client_focus(c);
+	}
+    }
+
+    show = show ? 1 : 0; /* make it boolean */
+    PROP_SET32(ob_root, net_showing_desktop, cardinal, show);
+}
+
+void screen_install_colormap(Client *client, gboolean install)
+{
+    if (client == NULL) {
+	/* XXX DONT USE THE DEFAULT SHIT HERE */
+	if (install)
+	    XInstallColormap(ob_display,
+			     DefaultColormap(ob_display, ob_screen));
+	else
+	    XUninstallColormap(ob_display,
+			       DefaultColormap(ob_display, ob_screen));
+    } else {
+	XWindowAttributes wa;
+	if (XGetWindowAttributes(ob_display, client->window, &wa)) {
+	    if (install)
+		XInstallColormap(ob_display, wa.colormap);
+	    else
+		XUninstallColormap(ob_display, wa.colormap);
+	}
+    }
+}
+
+void screen_update_struts()
+{
+    GSList *it;
+    guint i;
+     
+    if (strut != NULL)
+	g_free(strut);
+    strut = g_new0(Strut, screen_num_desktops + 1);
+
+    for (it = client_list; it; it = it->next) {
+	Client *c = it->data;
+	if (c->iconic) continue; /* these dont count in the strut */
+    
+	if (c->desktop == 0xffffffff) {
+	    for (i = 0; i < screen_num_desktops; ++i)
+		STRUT_ADD(strut[i], c->strut);
+	} else {
+	    g_assert(c->desktop < screen_num_desktops);
+	    STRUT_ADD(strut[c->desktop], c->strut);
+	}
+	/* apply to the 'all desktops' strut */
+	STRUT_ADD(strut[screen_num_desktops], c->strut);
+    }
+    screen_update_area();
+}
+
+static void screen_update_area()
+{
+    guint i;
+    gulong *dims;
+     
+    if (area != NULL)
+	g_free(area);
+    area = g_new0(Rect, screen_num_desktops + 1);
+     
+    dims = g_new(unsigned long, 4 * screen_num_desktops);
+    for (i = 0; i < screen_num_desktops + 1; ++i) {
+	Rect old_area = area[i];
+/*
+  #ifdef    XINERAMA
+  // reset to the full areas
+  if (isXineramaActive())
+  xineramaUsableArea = getXineramaAreas();
+  #endif // XINERAMA
+*/
+
+	RECT_SET(area[i], strut[i].left, strut[i].top,
+		 screen_physical_size.width - (strut[i].left +
+					       strut[i].right),
+		 screen_physical_size.height - (strut[i].top +
+						strut[i].bottom));
+    
+/*
+  #ifdef    XINERAMA
+  if (isXineramaActive()) {
+  // keep each of the ximerama-defined areas inside the strut
+  RectList::iterator xit, xend = xineramaUsableArea.end();
+  for (xit = xineramaUsableArea.begin(); xit != xend; ++xit) {
+  if (xit->x() < usableArea.x()) {
+  xit->setX(usableArea.x());
+  xit->setWidth(xit->width() - usableArea.x());
+  }
+  if (xit->y() < usableArea.y()) {
+  xit->setY(usableArea.y());
+  xit->setHeight(xit->height() - usableArea.y());
+  }
+  if (xit->x() + xit->width() > usableArea.width())
+  xit->setWidth(usableArea.width() - xit->x());
+  if (xit->y() + xit->height() > usableArea.height())
+  xit->setHeight(usableArea.height() - xit->y());
+  }
+  }
+  #endif // XINERAMA
+*/
+	if (!RECT_EQUAL(old_area, area[i])) {
+	    /* the area has changed, adjust all the maximized windows */
+	    GSList *it;
+	    for (it = client_list; it; it = it->next) {
+		Client *c = it->data;
+		if (i < screen_num_desktops) {
+		    if (c->desktop == i)
+			client_remaximize(c);
+		} else {
+		    /* the 'all desktops' size */
+		    if (c->desktop == DESKTOP_ALL)
+			client_remaximize(c);
+		}
+	    }
+	}
+
+	/* don't set these for the 'all desktops' area */
+	if (i < screen_num_desktops) {
+	    dims[(i * 4) + 0] = area[i].x;
+	    dims[(i * 4) + 1] = area[i].y;
+	    dims[(i * 4) + 2] = area[i].width;
+	    dims[(i * 4) + 3] = area[i].height;
+	}
+    }
+    PROP_SET32A(ob_root, net_workarea, cardinal,
+		dims, 4 * screen_num_desktops);
+    g_free(dims);
+}
+
+Rect *screen_area(guint desktop)
+{
+    if (desktop >= screen_num_desktops) {
+	if (desktop == DESKTOP_ALL)
+	    return &area[screen_num_desktops];
+	return NULL;
+    }
+    return &area[desktop];
+}
+
+Strut *screen_strut(guint desktop)
+{
+    if (desktop >= screen_num_desktops) {
+	if (desktop == DESKTOP_ALL)
+	    return &strut[screen_num_desktops];
+	return NULL;
+    }
+    return &strut[desktop];
+}