common.c
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/* See LICENSE file for copyright and license details. */
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <X11/keysym.h>
#ifdef XINERAMA
#include <X11/extensions/Xinerama.h>
#endif
#include "dmenu.h"
/* variables */
char *prompt = NULL;
char text[4096] = "";
int promptw = 0;
int screen;
unsigned int numlockmask = 0;
unsigned int mw, mh;
unsigned long normcol[ColLast];
unsigned long selcol[ColLast];
Bool topbar = True;
DC dc;
Display *dpy;
Window win, root;
void
grabkeyboard(void) {
unsigned int len;
for(len = 1000; len; len--) {
if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
== GrabSuccess)
return;
usleep(1000);
}
exit(EXIT_FAILURE);
}
void
run(void) {
XEvent ev;
/* main event loop */
XSync(dpy, False);
while(!XNextEvent(dpy, &ev))
switch(ev.type) {
case KeyPress:
kpress(&ev.xkey);
break;
case Expose:
if(ev.xexpose.count == 0)
drawbar();
break;
case VisibilityNotify:
if(ev.xvisibility.state != VisibilityUnobscured)
XRaiseWindow(dpy, win);
break;
}
exit(EXIT_FAILURE);
}
void
setup(unsigned int lines) {
int i, j, x, y;
#if XINERAMA
int n;
XineramaScreenInfo *info = NULL;
#endif
XModifierKeymap *modmap;
XSetWindowAttributes wa;
/* init modifier map */
modmap = XGetModifierMapping(dpy);
for(i = 0; i < 8; i++)
for(j = 0; j < modmap->max_keypermod; j++) {
if(modmap->modifiermap[i * modmap->max_keypermod + j]
== XKeysymToKeycode(dpy, XK_Num_Lock))
numlockmask = (1 << i);
}
XFreeModifiermap(modmap);
dc.dpy = dpy;
normcol[ColBG] = getcolor(&dc, normbgcolor);
normcol[ColFG] = getcolor(&dc, normfgcolor);
selcol[ColBG] = getcolor(&dc, selbgcolor);
selcol[ColFG] = getcolor(&dc, selfgcolor);
initfont(&dc, font);
/* input window */
wa.override_redirect = True;
wa.background_pixmap = ParentRelative;
wa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
/* input window geometry */
mh = (dc.font.height + 2) * (lines + 1);
#if XINERAMA
if(XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
i = 0;
if(n > 1) {
int di;
unsigned int dui;
Window dummy;
if(XQueryPointer(dpy, root, &dummy, &dummy, &x, &y, &di, &di, &dui))
for(i = 0; i < n; i++)
if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
break;
}
x = info[i].x_org;
y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh;
mw = info[i].width;
XFree(info);
}
else
#endif
{
x = 0;
y = topbar ? 0 : DisplayHeight(dpy, screen) - mh;
mw = DisplayWidth(dpy, screen);
}
win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
DefaultDepth(dpy, screen), CopyFromParent,
DefaultVisual(dpy, screen),
CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
setupdraw(&dc, win);
if(prompt)
promptw = MIN(textw(&dc, prompt), mw / 5);
XMapRaised(dpy, win);
}