1 files changed, 129 insertions, 0 deletions
diff --git a/common.c b/common.c
new file mode 100644
index 0000000..2d19aee
--- /dev/null
+++ b/common.c
@@ -0,0 +1,129 @@
+/* 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);
+}