dwm/event.c

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/*
* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
* See LICENSE file for license details.
*/
#include "dwm.h"
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#include <stdlib.h>
#include <X11/keysym.h>
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#include <X11/Xatom.h>
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/* static */
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typedef struct {
unsigned long mod;
KeySym keysym;
void (*func)(Arg *arg);
Arg arg;
} Key;
KEYS
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#define CLEANMASK(mask) (mask & ~(NUMLOCKMASK | LockMask))
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static void
movemouse(Client *c)
{
int x1, y1, ocx, ocy, di;
unsigned int dui;
Window dummy;
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XEvent ev;
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ocx = c->x;
ocy = c->y;
if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
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None, cursor[CurMove], CurrentTime) != GrabSuccess)
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return;
XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
for(;;) {
XMaskEvent(dpy, MOUSEMASK | ExposureMask, &ev);
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switch (ev.type) {
default: break;
case Expose:
handler[Expose](&ev);
break;
case MotionNotify:
XSync(dpy, False);
c->x = ocx + (ev.xmotion.x - x1);
c->y = ocy + (ev.xmotion.y - y1);
resize(c, False, TopLeft);
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break;
case ButtonRelease:
XUngrabPointer(dpy, CurrentTime);
return;
}
}
}
static void
resizemouse(Client *c)
{
int ocx, ocy;
Corner sticky;
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XEvent ev;
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ocx = c->x;
ocy = c->y;
if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
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None, cursor[CurResize], CurrentTime) != GrabSuccess)
return;
XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w, c->h);
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for(;;) {
XMaskEvent(dpy, MOUSEMASK | ExposureMask, &ev);
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switch(ev.type) {
default: break;
case Expose:
handler[Expose](&ev);
break;
case MotionNotify:
XSync(dpy, False);
c->w = abs(ocx - ev.xmotion.x);
c->h = abs(ocy - ev.xmotion.y);
c->x = (ocx <= ev.xmotion.x) ? ocx : ocx - c->w;
c->y = (ocy <= ev.xmotion.y) ? ocy : ocy - c->h;
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if(ocx <= ev.xmotion.x)
sticky = (ocy <= ev.xmotion.y) ? TopLeft : BotLeft;
else
sticky = (ocy <= ev.xmotion.y) ? TopRight : BotRight;
resize(c, True, sticky);
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break;
case ButtonRelease:
XUngrabPointer(dpy, CurrentTime);
return;
}
}
}
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static void
buttonpress(XEvent *e)
{
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int x;
Arg a;
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Client *c;
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XButtonPressedEvent *ev = &e->xbutton;
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if(barwin == ev->window) {
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switch(ev->button) {
default:
x = 0;
for(a.i = 0; a.i < TLast; a.i++) {
x += textw(tags[a.i]);
if(ev->x < x) {
view(&a);
break;
}
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}
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break;
case Button4:
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viewnext(&a);
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break;
case Button5:
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viewprev(&a);
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break;
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}
}
else if((c = getclient(ev->window))) {
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focus(c);
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switch(ev->button) {
default:
break;
case Button1:
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if(!c->ismax && (arrange == dofloat || c->isfloat)) {
higher(c);
movemouse(c);
}
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break;
case Button2:
lower(c);
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break;
case Button3:
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if(!c->ismax && (arrange == dofloat || c->isfloat)) {
higher(c);
resizemouse(c);
}
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break;
}
}
}
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static void
configurerequest(XEvent *e)
{
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Client *c;
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XConfigureRequestEvent *ev = &e->xconfigurerequest;
XWindowChanges wc;
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ev->value_mask &= ~CWSibling;
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if((c = getclient(ev->window))) {
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gravitate(c, True);
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if(ev->value_mask & CWX)
c->x = ev->x;
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if(ev->value_mask & CWY)
c->y = ev->y;
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if(ev->value_mask & CWWidth)
c->w = ev->width;
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if(ev->value_mask & CWHeight)
c->h = ev->height;
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if(ev->value_mask & CWBorderWidth)
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c->border = 1;
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gravitate(c, False);
resize(c, True, TopLeft);
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}
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wc.x = ev->x;
wc.y = ev->y;
wc.width = ev->width;
wc.height = ev->height;
wc.border_width = 1;
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XConfigureWindow(dpy, ev->window,
CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
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XSync(dpy, False);
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}
static void
destroynotify(XEvent *e)
{
Client *c;
XDestroyWindowEvent *ev = &e->xdestroywindow;
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if((c = getclient(ev->window)))
unmanage(c);
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}
static void
enternotify(XEvent *e)
{
Client *c;
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XCrossingEvent *ev = &e->xcrossing;
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if(ev->detail == NotifyInferior)
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return;
if((c = getclient(ev->window)) || (c = getctitle(ev->window)))
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focus(c);
else if(ev->window == root)
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issel = True;
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}
static void
expose(XEvent *e)
{
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Client *c;
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XExposeEvent *ev = &e->xexpose;
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if(ev->count == 0) {
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if(barwin == ev->window)
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drawstatus();
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else if((c = getctitle(ev->window)))
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drawtitle(c);
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}
}
static void
keypress(XEvent *e)
{
static unsigned int len = sizeof(key) / sizeof(key[0]);
unsigned int i;
KeySym keysym;
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XKeyEvent *ev = &e->xkey;
keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
for(i = 0; i < len; i++)
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if(keysym == key[i].keysym &&
CLEANMASK(key[i].mod) == CLEANMASK(ev->state)) {
if(key[i].func)
key[i].func(&key[i].arg);
return;
}
}
static void
leavenotify(XEvent *e)
{
XCrossingEvent *ev = &e->xcrossing;
if((ev->window == root) && !ev->same_screen)
issel = True;
}
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static void
maprequest(XEvent *e)
{
static XWindowAttributes wa;
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XMapRequestEvent *ev = &e->xmaprequest;
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if(!XGetWindowAttributes(dpy, ev->window, &wa))
return;
if(wa.override_redirect) {
XSelectInput(dpy, ev->window,
(StructureNotifyMask | PropertyChangeMask));
return;
}
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if(!getclient(ev->window))
manage(ev->window, &wa);
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}
static void
propertynotify(XEvent *e)
{
Client *c;
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Window trans;
XPropertyEvent *ev = &e->xproperty;
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if(ev->state == PropertyDelete)
return; /* ignore */
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if((c = getclient(ev->window))) {
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if(ev->atom == wmatom[WMProtocols]) {
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c->proto = getproto(c->win);
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return;
}
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switch (ev->atom) {
default: break;
case XA_WM_TRANSIENT_FOR:
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XGetTransientForHint(dpy, c->win, &trans);
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if(!c->isfloat && (c->isfloat = (trans != 0)))
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arrange(NULL);
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break;
case XA_WM_NORMAL_HINTS:
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setsize(c);
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break;
}
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if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
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settitle(c);
drawtitle(c);
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}
}
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}
static void
unmapnotify(XEvent *e)
{
Client *c;
XUnmapEvent *ev = &e->xunmap;
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if((c = getclient(ev->window)))
unmanage(c);
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}
/* extern */
void (*handler[LASTEvent]) (XEvent *) = {
[ButtonPress] = buttonpress,
[ConfigureRequest] = configurerequest,
[DestroyNotify] = destroynotify,
[EnterNotify] = enternotify,
[LeaveNotify] = leavenotify,
[Expose] = expose,
[KeyPress] = keypress,
[MapRequest] = maprequest,
[PropertyNotify] = propertynotify,
[UnmapNotify] = unmapnotify
};
void
grabkeys()
{
static unsigned int len = sizeof(key) / sizeof(key[0]);
unsigned int i;
KeyCode code;
for(i = 0; i < len; i++) {
code = XKeysymToKeycode(dpy, key[i].keysym);
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/* normal */
XUngrabKey(dpy, code, key[i].mod, root);
XGrabKey(dpy, code, key[i].mod, root, True,
GrabModeAsync, GrabModeAsync);
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/* capslock */
XUngrabKey(dpy, code, key[i].mod | LockMask, root);
XGrabKey(dpy, code, key[i].mod | LockMask, root, True,
GrabModeAsync, GrabModeAsync);
/* numlock */
XUngrabKey(dpy, code, key[i].mod | NUMLOCKMASK, root);
XGrabKey(dpy, code, key[i].mod | NUMLOCKMASK, root, True,
GrabModeAsync, GrabModeAsync);
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/* capslock & numlock */
XUngrabKey(dpy, code, key[i].mod | NUMLOCKMASK | LockMask, root);
XGrabKey(dpy, code, key[i].mod | NUMLOCKMASK | LockMask, root, True,
GrabModeAsync, GrabModeAsync);
}
}