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xevents.c
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#include <err.h>
#include <spawn.h>
#include "shod.h"
#include <X11/XKBlib.h>
#define _SHOD_MOVERESIZE_RELATIVE ((long)(1 << 16))
#define MOUSEEVENTMASK (ButtonReleaseMask | PointerMotionMask)
#define ALTTABMASK (KeyPressMask | KeyReleaseMask)
#define DOUBLECLICK 250 /* time in miliseconds of a double click */
#define BETWEEN(a, b, c) ((a) <= (b) && (b) < (c))
/* moveresize action */
enum {
_NET_WM_MOVERESIZE_SIZE_TOPLEFT = 0,
_NET_WM_MOVERESIZE_SIZE_TOP = 1,
_NET_WM_MOVERESIZE_SIZE_TOPRIGHT = 2,
_NET_WM_MOVERESIZE_SIZE_RIGHT = 3,
_NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT = 4,
_NET_WM_MOVERESIZE_SIZE_BOTTOM = 5,
_NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT = 6,
_NET_WM_MOVERESIZE_SIZE_LEFT = 7,
_NET_WM_MOVERESIZE_MOVE = 8, /* movement only */
_NET_WM_MOVERESIZE_SIZE_KEYBOARD = 9, /* size via keyboard */
_NET_WM_MOVERESIZE_MOVE_KEYBOARD = 10, /* move via keyboard */
_NET_WM_MOVERESIZE_CANCEL = 11, /* cancel operation */
};
/* focus relative direction */
enum {
_SHOD_FOCUS_ABSOLUTE = 0,
_SHOD_FOCUS_LEFT_CONTAINER = 1,
_SHOD_FOCUS_RIGHT_CONTAINER = 2,
_SHOD_FOCUS_TOP_CONTAINER = 3,
_SHOD_FOCUS_BOTTOM_CONTAINER = 4,
_SHOD_FOCUS_PREVIOUS_CONTAINER = 5,
_SHOD_FOCUS_NEXT_CONTAINER = 6,
_SHOD_FOCUS_LEFT_WINDOW = 7,
_SHOD_FOCUS_RIGHT_WINDOW = 8,
_SHOD_FOCUS_TOP_WINDOW = 9,
_SHOD_FOCUS_BOTTOM_WINDOW = 10,
_SHOD_FOCUS_PREVIOUS_WINDOW = 11,
_SHOD_FOCUS_NEXT_WINDOW = 12,
};
/* floating object type */
enum {
FLOAT_CONTAINER,
FLOAT_MENU,
};
/* motif constants, mostly unused */
enum {
/*
* Constants copied from lib/Xm/MwmUtil.h on motif's source code.
*/
PROP_MWM_HINTS_ELEMENTS = 5,
/* bit definitions for MwmHints.flags */
MWM_HINTS_FUNCTIONS = (1 << 0),
MWM_HINTS_DECORATIONS = (1 << 1),
MWM_HINTS_INPUT_MODE = (1 << 2),
MWM_HINTS_STATUS = (1 << 3),
/* bit definitions for MwmHints.functions */
MWM_FUNC_ALL = (1 << 0),
MWM_FUNC_RESIZE = (1 << 1),
MWM_FUNC_MOVE = (1 << 2),
MWM_FUNC_MINIMIZE = (1 << 3),
MWM_FUNC_MAXIMIZE = (1 << 4),
MWM_FUNC_CLOSE = (1 << 5),
/* bit definitions for MwmHints.decorations */
MWM_DECOR_ALL = (1 << 0),
MWM_DECOR_BORDER = (1 << 1),
MWM_DECOR_RESIZEH = (1 << 2),
MWM_DECOR_TITLE = (1 << 3),
MWM_DECOR_MENU = (1 << 4),
MWM_DECOR_MINIMIZE = (1 << 5),
MWM_DECOR_MAXIMIZE = (1 << 6),
/* values for MwmHints.input_mode */
MWM_INPUT_MODELESS = 0,
MWM_INPUT_PRIMARY_APPLICATION_MODAL = 1,
MWM_INPUT_SYSTEM_MODAL = 2,
MWM_INPUT_FULL_APPLICATION_MODAL = 3,
/* bit definitions for MwmHints.status */
MWM_TEAROFF_WINDOW = (1 << 0),
};
/* GNUstep constants, mostly unused */
enum {
/*
* Constants copied from src/GNUstep.h on window-maker's source code.
*/
PROP_GNU_HINTS_ELEMENTS = 9,
/* flags */
GNU_FLAG_WINDOWSTYLE = (1<<0),
GNU_FLAG_WINDOWLEVEL = (1<<1),
/* window levels */
GNU_LEVEL_DESKTOP = -1000,
GNU_LEVEL_NORMAL = 0,
GNU_LEVEL_FLOATING = 3,
GNU_LEVEL_SUBMENU = 3,
GNU_LEVEL_TORNOFF = 3,
GNU_LEVEL_MAINMENU = 20,
GNU_LEVEL_DOCK = 21,
GNU_LEVEL_STATUS = 21,
GNU_LEVEL_PANEL = 100,
GNU_LEVEL_POPUP = 101,
GNU_LEVEL_SCREENSAVER = 1000,
/* window style */
GNU_STYLE_TITLED = 1,
GNU_STYLE_CLOSABLE = 2,
GNU_STYLE_MINIMIZABLE = 4,
GNU_STYLE_RESIZEABLE = 8,
GNU_STYLE_ICON = 64,
GNU_STYLE_MINIWINDOW = 128,
};
/* motif window manager (Mwm) hints */
struct MwmHints {
unsigned long flags;
unsigned long functions;
unsigned long decorations;
long inputMode;
unsigned long status;
};
/* GNUstep window manager hints */
struct GNUHints {
unsigned long flags;
unsigned long window_style;
unsigned long window_level;
unsigned long reserved;
unsigned long miniaturize_pixmap; /* pixmap for miniaturize button */
unsigned long close_pixmap; /* pixmap for close button */
unsigned long miniaturize_mask; /* miniaturize pixmap mask */
unsigned long close_mask; /* close pixmap mask */
unsigned long extra_flags;
};
#define GETMANAGED(head, p, w) \
TAILQ_FOREACH(p, &(head), entry) \
if (p->win == w) \
return (p); \
static void manageunknown(struct Tab *, struct Monitor *, int, Window,
Window, XRectangle, enum State);
static struct Class *unknown_class = &(struct Class){
.type = TYPE_UNKNOWN,
.setstate = NULL,
.manage = manageunknown,
.unmanage = NULL,
};
/* check whether window was placed by the user */
static int
isuserplaced(Window win)
{
XSizeHints size;
long dl;
return (XGetWMNormalHints(dpy, win, &size, &dl) && (size.flags & USPosition));
}
/* check if desktop is visible */
static int
deskisvisible(struct Monitor *mon, int desk)
{
return mon->seldesk == desk;
}
/* get pointer to managed object given a window */
static struct Object *
getmanaged(Window win)
{
struct Object *p, *tab, *dial, *menu;
struct Container *c;
struct Column *col;
struct Row *row;
int i;
TAILQ_FOREACH(c, &wm.focusq, entry) {
if (c->frame == win)
return (struct Object *)c->selcol->selrow->seltab;
for (i = 0; i < BORDER_LAST; i++)
if (c->curswin[i] == win)
return (struct Object *)c->selcol->selrow->seltab;
TAILQ_FOREACH(col, &(c)->colq, entry) {
if (col->div == win)
return (struct Object *)c->selcol->selrow->seltab;
TAILQ_FOREACH(row, &col->rowq, entry) {
if (row->div == win)
return (struct Object *)row->seltab;
if (row->bar == win || row->bl == win || row->br == win)
return (struct Object *)row->seltab;
TAILQ_FOREACH(tab, &row->tabq, entry) {
if (tab->win == win ||
((struct Tab *)tab)->frame == win ||
((struct Tab *)tab)->title == win)
return tab;
TAILQ_FOREACH(dial, &((struct Tab *)tab)->dialq, entry) {
if (dial->win == win ||
((struct Dialog *)dial)->frame == win)
return dial;
}
}
}
}
}
GETMANAGED(dock.dappq, p, win)
GETMANAGED(wm.barq, p, win)
GETMANAGED(wm.notifq, p, win)
TAILQ_FOREACH(p, &wm.splashq, entry)
if (p->win == win)
return p;
TAILQ_FOREACH(menu, &wm.menuq, entry) {
if (menu->win == win ||
((struct Menu *)menu)->frame == win ||
((struct Menu *)menu)->button == win ||
((struct Menu *)menu)->titlebar == win)
return menu;
}
if (win == dock.obj.win)
return &dock.obj;
return NULL;
}
/* check whether given state matches modifier */
static int
isvalidstate(unsigned int state)
{
return config.modifier != 0 && (state & config.modifier) == config.modifier;
}
/* get tab given window is a dialog for */
static struct Tab *
getdialogfor(Window win)
{
struct Object *obj;
Window tmpwin;
if (XGetTransientForHint(dpy, win, &tmpwin)) {
obj = getmanaged(tmpwin);
if (obj == NULL)
return NULL;
if (obj->class->type != TYPE_NORMAL)
return NULL;
return (struct Tab *)obj;
}
return NULL;
}
static struct Tab *
gettabfrompid(unsigned long pid)
{
struct Container *c;
struct Object *tab;
if (pid <= 1)
return NULL;
TAILQ_FOREACH(c, &wm.focusq, entry) {
TAB_FOREACH_BEGIN(c, tab){
if (pid == ((struct Tab *)tab)->pid)
return (struct Tab *)tab;
}TAB_FOREACH_END
}
return NULL;
}
/* get tab equal to leader or having leader as group leader */
static struct Tab *
getleaderof(Window leader)
{
struct Container *c;
struct Object *tab;
TAILQ_FOREACH(c, &wm.focusq, entry) {
TAB_FOREACH_BEGIN(c, tab){
if (leader != None && (tab->win == leader || ((struct Tab *)tab)->leader == leader))
return (struct Tab *)tab;
}TAB_FOREACH_END
}
return NULL;
}
/* get bitmask of container state from given window */
static enum State
getwinstate(Window win)
{
enum State state;
unsigned long i, nstates;
unsigned char *list;
unsigned long dl; /* dummy variable */
int di; /* dummy variable */
Atom da; /* dummy variable */
Atom *as;
list = NULL;
state = 0;
if (XGetWindowProperty(dpy, win, atoms[_NET_WM_STATE], 0L, 1024, False, XA_ATOM, &da, &di, &nstates, &dl, &list) == Success && list != NULL) {
as = (Atom *)list;
for (i = 0; i < nstates; i++) {
if (as[i] == atoms[_NET_WM_STATE_STICKY]) {
state |= STICKY;
} else if (as[i] == atoms[_NET_WM_STATE_MAXIMIZED_VERT]) {
state |= MAXIMIZED;
} else if (as[i] == atoms[_NET_WM_STATE_MAXIMIZED_HORZ]) {
state |= MAXIMIZED;
} else if (as[i] == atoms[_NET_WM_STATE_HIDDEN]) {
state |= MINIMIZED;
} else if (as[i] == atoms[_NET_WM_STATE_SHADED]) {
state |= SHADED;
} else if (as[i] == atoms[_NET_WM_STATE_FULLSCREEN]) {
state |= FULLSCREEN;
} else if (as[i] == atoms[_NET_WM_STATE_ABOVE]) {
state |= ABOVE;
} else if (as[i] == atoms[_NET_WM_STATE_BELOW]) {
state |= BELOW;
}
}
}
if (isuserplaced(win))
state |= USERPLACED;
XFree(list);
return state;
}
/* get window's WM_STATE property */
static long
getstate(Window w)
{
long result = -1;
unsigned char *p = NULL;
unsigned long n, extra;
Atom da;
int di;
if (XGetWindowProperty(dpy, w, atoms[WM_STATE], 0L, 2L, False, atoms[WM_STATE],
&da, &di, &n, &extra, (unsigned char **)&p) != Success)
return -1;
if (n != 0)
result = *p;
XFree(p);
return result;
}
static char *
gettextprop(Window win, Atom atom)
{
XTextProperty tprop = { .value = NULL };
int count;
char **list = NULL;
char *s = NULL;
if (!XGetTextProperty(dpy, win, &tprop, atom))
goto error;
if (tprop.nitems == 0)
goto error;
if (XmbTextPropertyToTextList(dpy, &tprop, &list, &count) != Success)
goto error;
if (count < 1 || list == NULL || *list == NULL)
goto error;
s = strdup(list[0]);
error:
XFreeStringList(list);
XFree(tprop.value);
return s;
}
/* get motif/GNUstep hints from window; return -1 on error */
static int
getextrahints(Window win, Atom prop, unsigned long nmemb, size_t size, void *hints)
{
unsigned long dl;
Atom type;
int di;
int status, ret;
unsigned char *p;
status = XGetWindowProperty(
dpy, win,
prop,
0L, nmemb,
False,
prop,
&type, &di, &dl, &dl,
&p
);
ret = -1;
if (status == Success && p != NULL) {
memcpy(hints, p, size);
ret = 0;
}
XFree(p);
return ret;
}
#define STRCMP(a, b) ((a) != NULL && (b) != NULL && strcmp((a), (b)) == 0)
static void
manageunknown(struct Tab *tab, struct Monitor *mon, int desk, Window win,
Window leader, XRectangle rect, enum State state)
{
(void)tab;
(void)mon;
(void)desk;
(void)leader;
(void)rect;
if (state & BELOW)
XLowerWindow(dpy, win);
else if (state & ABOVE)
XRaiseWindow(dpy, win);
XMapWindow(dpy, win);
}
struct Class *
getwinclass(Window win, Window *leader, struct Tab **tab, enum State *state, XRectangle *rect, int *desk)
{
/* rules for identifying windows */
enum { I_APP, I_CLASS, I_INSTANCE, I_ROLE, I_RESOURCE, I_NULL, I_LAST };
XrmClass winclass[I_LAST];
XrmName winname[I_LAST];
struct MwmHints mwmhints = { 0 };
struct GNUHints gnuhints = { 0 };
struct Class *class;
XClassHint classh = { .res_class = NULL, .res_name = NULL };
XWMHints *wmhints;
Atom prop;
size_t i;
long n;
int isdockapp, pos;
char *role, *value;
pos = 0;
*tab = NULL;
*state = 0;
class = NULL;
classh.res_class = NULL;
classh.res_name = NULL;
*state = getwinstate(win);
/* get window type (and other info) from default (hardcoded) rules */
role = gettextprop(win, atoms[WM_WINDOW_ROLE]);
XGetClassHint(dpy, win, &classh);
for (i = 0; config.rules[i].class != NULL || config.rules[i].instance != NULL || config.rules[i].role != NULL; i++) {
if ((config.rules[i].class == NULL || STRCMP(config.rules[i].class, classh.res_class))
&& (config.rules[i].instance == NULL || STRCMP(config.rules[i].instance, classh.res_name))
&& (config.rules[i].role == NULL || STRCMP(config.rules[i].role, role))) {
if (config.rules[i].type == TYPE_DOCKAPP) {
class = dockapp_class;
}
if (config.rules[i].state >= 0) {
*state = config.rules[i].state;
}
if (config.rules[i].desktop > 0 && config.rules[i].desktop <= config.ndesktops) {
*desk = config.rules[i].desktop - 1;
}
}
}
/* convert strings to quarks for xrm */
winclass[I_NULL] = winname[I_NULL] = NULLQUARK;
winclass[I_APP] = wm.application.class;
winname[I_APP] = wm.application.name;
if (classh.res_class != NULL)
winclass[I_CLASS] = winname[I_CLASS] = XrmStringToQuark(classh.res_class);
else
winclass[I_CLASS] = winname[I_CLASS] = wm.anyresource;
if (classh.res_name != NULL)
winclass[I_INSTANCE] = winname[I_INSTANCE] = XrmStringToQuark(classh.res_name);
else
winclass[I_INSTANCE] = winname[I_INSTANCE] = wm.anyresource;
if (role != NULL)
winclass[I_ROLE] = winname[I_ROLE] = XrmStringToQuark(role);
else
winclass[I_ROLE] = winname[I_ROLE] = wm.anyresource;
free(role);
XFree(classh.res_class);
XFree(classh.res_name);
/* get window type from X resources */
winclass[I_RESOURCE] = wm.resources[RES_TYPE].class;
winname[I_RESOURCE] = wm.resources[RES_TYPE].name;
if ((value = getresource(xdb, winclass, winname)) != NULL &&
strcasecmp(value, "DESKTOP") == 0) {
class = dockapp_class;
}
/* get window state from X resources */
winclass[I_RESOURCE] = wm.resources[RES_STATE].class;
winname[I_RESOURCE] = wm.resources[RES_STATE].name;
if ((value = getresource(xdb, winclass, winname)) != NULL) {
*state = 0;
if (strcasestr(value, "above") != NULL) {
*state |= ABOVE;
}
if (strcasestr(value, "below") != NULL) {
*state |= BELOW;
}
if (strcasestr(value, "fullscreen") != NULL) {
*state |= FULLSCREEN;
}
if (strcasestr(value, "maximized") != NULL) {
*state |= MAXIMIZED;
}
if (strcasestr(value, "minimized") != NULL) {
*state |= MINIMIZED;
}
if (strcasestr(value, "shaded") != NULL) {
*state |= SHADED;
}
if (strcasestr(value, "sticky") != NULL) {
*state |= STICKY;
}
if (strcasestr(value, "extend") != NULL) {
*state |= EXTEND;
}
if (strcasestr(value, "shrunk") != NULL) {
*state |= SHRUNK;
}
if (strcasestr(value, "resized") != NULL) {
*state |= RESIZED;
}
}
/* get dockapp position from X resources */
winclass[I_RESOURCE] = wm.resources[RES_DOCK_POS].class;
winname[I_RESOURCE] = wm.resources[RES_DOCK_POS].name;
if ((value = getresource(xdb, winclass, winname)) != NULL) {
if ((n = strtol(value, NULL, 10)) >= 0 && n < INT_MAX) {
pos = n;
}
}
/* get desktop id from X resources */
winclass[I_RESOURCE] = wm.resources[RES_DESKTOP].class;
winname[I_RESOURCE] = wm.resources[RES_DESKTOP].name;
if ((value = getresource(xdb, winclass, winname)) != NULL) {
if ((n = strtol(value, NULL, 10)) > 0 && n <= config.ndesktops) {
*desk = n - 1;
}
}
/* we already got the type of the window, return */
if (class != NULL)
goto done;
/* try to guess window type */
prop = getatomprop(win, atoms[_NET_WM_WINDOW_TYPE]);
wmhints = XGetWMHints(dpy, win);
getextrahints(win, atoms[_MOTIF_WM_HINTS], PROP_MWM_HINTS_ELEMENTS, sizeof(mwmhints), &mwmhints);
getextrahints(win, atoms[_GNUSTEP_WM_ATTR], PROP_GNU_HINTS_ELEMENTS, sizeof(gnuhints), &gnuhints);
isdockapp = (
wmhints &&
FLAG(wmhints->flags, IconWindowHint | StateHint) &&
wmhints->initial_state == WithdrawnState
);
*leader = getwinprop(win, atoms[WM_CLIENT_LEADER]);
if (*leader == None)
*leader = (wmhints != NULL && (wmhints->flags & WindowGroupHint)) ? wmhints->window_group : None;
*tab = getdialogfor(win);
XFree(wmhints);
if (!(gnuhints.flags & GNU_FLAG_WINDOWSTYLE))
gnuhints.window_style = 0;
if (!(gnuhints.flags & GNU_FLAG_WINDOWLEVEL))
gnuhints.window_level = 0;
if (isdockapp ||
gnuhints.window_style == GNU_STYLE_ICON ||
gnuhints.window_style == GNU_STYLE_MINIWINDOW) {
class = dockapp_class;
} else if (prop == atoms[_NET_WM_WINDOW_TYPE_DESKTOP]) {
class = unknown_class;
*state = BELOW;
} else if (prop == atoms[_NET_WM_WINDOW_TYPE_NOTIFICATION]) {
class = notif_class;
} else if (prop == atoms[_NET_WM_WINDOW_TYPE_PROMPT]) {
class = prompt_class;
} else if (prop == atoms[_NET_WM_WINDOW_TYPE_SPLASH]) {
class = splash_class;
} else if (gnuhints.window_level == GNU_LEVEL_POPUP) {
class = unknown_class;
*state = ABOVE;
} else if (prop == atoms[_NET_WM_WINDOW_TYPE_MENU] ||
prop == atoms[_NET_WM_WINDOW_TYPE_UTILITY] ||
prop == atoms[_NET_WM_WINDOW_TYPE_TOOLBAR] ||
gnuhints.window_level == GNU_LEVEL_PANEL ||
gnuhints.window_level == GNU_LEVEL_SUBMENU ||
gnuhints.window_level == GNU_LEVEL_MAINMENU ||
((mwmhints.flags & MWM_HINTS_STATUS) &&
(mwmhints.status & MWM_TEAROFF_WINDOW))) {
if (*tab != NULL)
*leader = (*tab)->obj.win;
class = menu_class;
} else if (prop == atoms[_NET_WM_WINDOW_TYPE_DOCK]) {
class = bar_class;
} else if (*tab != NULL) {
*leader = (*tab)->obj.win;
class = config.floatdialog ? menu_class : dialog_class;
} else {
*tab = getleaderof(*leader);
if (*tab == NULL)
*tab = gettabfrompid(getcardprop(win, atoms[_NET_WM_PID]));
class = tab_class;
}
done:
if (class == dockapp_class)
rect->x = rect->y = pos;
return class;
}
/* select window input events, grab mouse button presses, and clear its border */
static void
preparewin(Window win)
{
XSelectInput(dpy, win, StructureNotifyMask|PropertyChangeMask|FocusChangeMask);
XGrabButton(dpy, AnyButton, AnyModifier, win, False, ButtonPressMask,
GrabModeSync, GrabModeSync, None, None);
XSetWindowBorderWidth(dpy, win, 0);
}
/* check whether window is urgent */
static int
getwinurgency(Window win)
{
XWMHints *wmh;
int ret;
ret = 0;
if ((wmh = XGetWMHints(dpy, win)) != NULL) {
ret = wmh->flags & XUrgencyHint;
XFree(wmh);
}
return ret;
}
/* get row or column next to division the pointer is on */
static Bool
getdivisions(struct Container *c, struct Column **cdiv, struct Row **rdiv, Window win)
{
struct Column *col;
struct Row *row;
*cdiv = NULL;
*rdiv = NULL;
TAILQ_FOREACH(col, &c->colq, entry) {
if (col->div == win) {
*cdiv = col;
return True;
}
TAILQ_FOREACH(row, &col->rowq, entry) {
if (row->div == win) {
*rdiv = row;
return True;
}
}
}
return False;
}
/* get frame handle (NW/N/NE/W/E/SW/S/SE) the pointer is on */
static Window
getframehandle(int w, int h, int x, int y)
{
if ((y < config.borderwidth && x <= config.corner) || (x < config.borderwidth && y <= config.corner))
return NW;
else if ((y < config.borderwidth && x >= w - config.corner) || (x > w - config.borderwidth && y <= config.corner))
return NE;
else if ((y > h - config.borderwidth && x <= config.corner) || (x < config.borderwidth && y >= h - config.corner))
return SW;
else if ((y > h - config.borderwidth && x >= w - config.corner) || (x > w - config.borderwidth && y >= h - config.corner))
return SE;
else if (y < config.borderwidth)
return N;
else if (y >= h - config.borderwidth)
return S;
else if (x < config.borderwidth)
return W;
else if (x >= w - config.borderwidth)
return E;
return C;
}
/* get quadrant (NW/NE/SW/SE) the pointer is on */
static enum Octant
getquadrant(int w, int h, int x, int y)
{
if (x >= w / 2 && y >= h / 2)
return SE;
if (x >= w / 2 && y <= h / 2)
return NE;
if (x <= w / 2 && y >= h / 2)
return SW;
if (x <= w / 2 && y <= h / 2)
return NW;
return C;
}
/* (un)show desktop */
static void
deskshow(int show)
{
struct Object *obj;
struct Container *c;
TAILQ_FOREACH(c, &wm.focusq, entry)
if (!(c->state & MINIMIZED))
containerhide(c, show);
TAILQ_FOREACH(obj, &wm.splashq, entry)
splashhide((struct Splash *)obj, show);
wm.showingdesk = show;
ewmhsetshowingdesktop(show);
menuupdate();
}
/* update desktop */
void
deskupdate(struct Monitor *mon, int desk)
{
struct Object *obj;
struct Splash *splash;
struct Container *c;
if (desk < 0 || desk >= config.ndesktops || (mon == wm.selmon && desk == wm.selmon->seldesk))
return;
if (wm.showingdesk)
deskshow(0);
if (!deskisvisible(mon, desk)) {
/* unhide cointainers of new current desktop
* hide containers of previous current desktop */
TAILQ_FOREACH(c, &wm.focusq, entry) {
if (c->mon != mon)
continue;
if (!(c->state & MINIMIZED) && c->desk == desk) {
containerhide(c, REMOVE);
} else if (!(c->state & STICKY) && c->desk == mon->seldesk) {
containerhide(c, ADD);
}
}
TAILQ_FOREACH(obj, &wm.splashq, entry) {
splash = (struct Splash *)obj;
if (splash->mon != mon)
continue;
if (splash->desk == desk) {
splashhide(splash, REMOVE);
} else if (splash->desk == mon->seldesk) {
splashhide(splash, ADD);
}
}
}
wm.selmon = mon;
wm.selmon->seldesk = desk;
ewmhsetcurrentdesktop(desk);
}
/* change desktop */
static void
deskfocus(struct Monitor *mon, int desk)
{
struct Container *c;
if (desk < 0 || desk >= config.ndesktops || (mon == wm.selmon && desk == wm.selmon->seldesk))
return;
deskupdate(mon, desk);
c = getnextfocused(mon, desk);
if (c != NULL) {
tabfocus(c->selcol->selrow->seltab, 0);
} else {
tabfocus(NULL, 0);
}
}
/* call one of the manage- functions */
static void
manage(Window win, XRectangle rect)
{
struct Tab *tab;
struct Class *class;
Window leader;
enum State state;
int desk = wm.selmon->seldesk;
if (getmanaged(win) != NULL)
return;
preparewin(win);
class = getwinclass(win, &leader, &tab, &state, &rect, &desk);
(*class->manage)(tab, wm.selmon, desk, win, leader, rect, state);
}
/* perform container switching (aka alt-tab) */
static void
alttab(int shift)
{
struct Container *c, *prevfocused;
XEvent ev;
prevfocused = wm.focused;
if ((c = TAILQ_FIRST(&wm.focusq)) == NULL)
return;
if (XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime) != GrabSuccess)
goto done;
if (XGrabPointer(dpy, root, False, 0, GrabModeAsync, GrabModeAsync, None, None, CurrentTime) != GrabSuccess)
goto done;
containerbacktoplace(c, 0);
c = containerraisetemp(c, shift);
while (!XMaskEvent(dpy, ALTTABMASK, &ev)) {
switch (ev.type) {
case KeyPress:
if (ev.xkey.keycode == config.tabkeycode && isvalidstate(ev.xkey.state)) {
containerbacktoplace(c, 1);
c = containerraisetemp(c, (ev.xkey.state & ShiftMask));
}
break;
case KeyRelease:
if (ev.xkey.keycode == config.altkeycode)
goto done;
break;
}
}
done:
XUngrabKeyboard(dpy, CurrentTime);
XUngrabPointer(dpy, CurrentTime);
if (c == NULL)
return;
containerbacktoplace(c, 1);
wm.focused = prevfocused;
tabfocus(c->selcol->selrow->seltab, 0);
containerraise(c, c->state);
}
/* detach tab from window with mouse */
static void
mouseretab(struct Tab *tab, int xroot, int yroot, int x, int y)
{
#define DND_POS 10 /* pixels from pointer cursor to drag-and-drop icon */
struct Monitor *mon;
struct Object *obj;
struct Row *row; /* row to be deleted, if emptied */
struct Container *c;
Window win;
XEvent ev;
row = tab->row;
c = row->col->c;
if (XGrabPointer(dpy, root, False, ButtonReleaseMask | PointerMotionMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime) != GrabSuccess)
goto error;
tabdetach(tab, xroot - x, yroot - y);
containermoveresize(c, 0);
XUnmapWindow(dpy, tab->title);
XMoveWindow(
dpy, wm.dragwin,
xroot - DND_POS - (2 * config.borderwidth + config.titlewidth),
yroot - DND_POS - (2 * config.borderwidth + config.titlewidth)
);
XRaiseWindow(dpy, wm.dragwin);
while (!XMaskEvent(dpy, MOUSEEVENTMASK, &ev)) {
switch (ev.type) {
case MotionNotify:
XMoveWindow(
dpy, wm.dragwin,
ev.xmotion.x_root - DND_POS - (2 * config.borderwidth + config.titlewidth),
ev.xmotion.y_root - DND_POS - (2 * config.borderwidth + config.titlewidth)
);
break;
case ButtonRelease:
goto done;
}
}
done:
XMoveWindow(
dpy, wm.dragwin,
- (2 * config.borderwidth + config.titlewidth),
- (2 * config.borderwidth + config.titlewidth)
);
xroot = ev.xbutton.x_root - x;
yroot = ev.xbutton.y_root - y;
obj = getmanaged(ev.xbutton.subwindow);
c = NULL;
if (obj != NULL &&
obj->class->type == TYPE_NORMAL &&
ev.xbutton.subwindow == ((struct Tab *)obj)->row->col->c->frame) {
c = ((struct Tab *)obj)->row->col->c;
XTranslateCoordinates(dpy, ev.xbutton.window, c->frame, ev.xbutton.x_root, ev.xbutton.y_root, &x, &y, &win);
}
if (row->col->c != c) {
XUnmapWindow(dpy, tab->frame);
XReparentWindow(dpy, tab->frame, root, x, y);
}
if (!tabattach(c, tab, x, y)) {
mon = getmon(x, y);
if (mon == NULL)
mon = wm.selmon;
containernewwithtab(
tab, mon, mon->seldesk,
(XRectangle){
.x = xroot - config.titlewidth,
.y = yroot,
.width = tab->winw,
.height = tab->winh,
},
USERPLACED
);
}
containerdelrow(row);
ewmhsetactivewindow(tab->obj.win);
error:
XUngrabPointer(dpy, CurrentTime);
}
/* resize container with mouse */
static void
mouseresize(int type, void *obj, int xroot, int yroot, enum Octant o)
{
struct Container *c;
struct Menu *menu;
Cursor curs;
XEvent ev;
Window frame;
Time lasttime;
int *nx, *ny, *nw, *nh;
int x, y, dx, dy;
if (type == FLOAT_MENU) {
menu = (struct Menu *)obj;
nx = &menu->x;
ny = &menu->y;
nw = &menu->w;
nh = &menu->h;
frame = menu->frame;
} else {
c = (struct Container *)obj;
if (c->state & FULLSCREEN || c->b == 0)
return;
frame = c->frame;
if (containerisshaded(c)) {
if (o & W) {
o = W;
} else if (o & E) {
o = E;
} else {
return;
}
}
nx = &c->nx;
ny = &c->ny;
nw = &c->nw;
nh = &c->nh;
}
switch (o) {
case NW:
curs = wm.cursors[CURSOR_NW];
break;
case NE:
curs = wm.cursors[CURSOR_NE];
break;
case SW:
curs = wm.cursors[CURSOR_SW];
break;
case SE:
curs = wm.cursors[CURSOR_SE];
break;
case N:
curs = wm.cursors[CURSOR_N];
break;
case S:
curs = wm.cursors[CURSOR_S];
break;
case W:
curs = wm.cursors[CURSOR_W];
break;
case E:
curs = wm.cursors[CURSOR_E];
break;
default:
curs = None;
break;
}
if (o & W)
x = xroot - *nx - config.borderwidth;
else if (o & E)
x = *nx + *nw - config.borderwidth - xroot;
else
x = 0;
if (o & N)
y = yroot - *ny - config.borderwidth;
else if (o & S)
y = *ny + *nh - config.borderwidth - yroot;
else