--- /dev/null
+/* 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);
+}