From b4e63454e5768d38682405d252a81b1149273c0b Mon Sep 17 00:00:00 2001 From: Connor Lane Smith Date: Wed, 23 Jun 2010 12:04:54 +0100 Subject: initial dmenu / dinput separation --- dinput.c | 387 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 387 insertions(+) create mode 100644 dinput.c (limited to 'dinput.c') diff --git a/dinput.c b/dinput.c new file mode 100644 index 0000000..490380d --- /dev/null +++ b/dinput.c @@ -0,0 +1,387 @@ +/* See LICENSE file for copyright and license details. */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#ifdef XINERAMA +#include +#endif + +/* macros */ +#define CLEANMASK(mask) (mask & ~(numlockmask | LockMask)) +#define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH)) +#define MIN(a, b) ((a) < (b) ? (a) : (b)) +#define MAX(a, b) ((a) > (b) ? (a) : (b)) +#define IS_UTF8_1ST_CHAR(c) ((((c) & 0xc0) == 0xc0) || !((c) & 0x80)) + +/* forward declarations */ +static void cleanup(void); +static void drawcursor(void); +static void drawinput(void); +static void eprint(const char *errstr, ...); +static Bool grabkeyboard(void); +static void kpress(XKeyEvent * e); +static void run(void); +static void setup(Bool topbar); + +#include "config.h" + +/* variables */ +static char *prompt = NULL; +static char text[4096]; +static int promptw = 0; +static int ret = 0; +static int screen; +static unsigned int mw, mh; +static unsigned int cursor = 0; +static unsigned int numlockmask = 0; +static Bool running = True; +static Display *dpy; +static Window parent, win; + +#include "draw.c" + +void +cleanup(void) { + dccleanup(); + XDestroyWindow(dpy, win); + XUngrabKeyboard(dpy, CurrentTime); +} + +void +drawcursor(void) { + XRectangle r = { dc.x, dc.y + 2, 1, dc.font.height - 2 }; + + r.x += textnw(text, cursor) + dc.font.height / 2; + + XSetForeground(dpy, dc.gc, dc.norm[ColFG]); + XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); +} + +void +drawinput(void) +{ + dc.x = 0; + dc.y = 0; + dc.w = mw; + dc.h = mh; + drawtext(NULL, dc.norm); + /* print prompt? */ + if(prompt) { + dc.w = promptw; + drawtext(prompt, dc.sel); + dc.x += dc.w; + } + dc.w = mw - dc.x; + drawtext(*text ? text : NULL, dc.norm); + drawcursor(); + XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0); + XFlush(dpy); +} + +void +eprint(const char *errstr, ...) { + va_list ap; + + va_start(ap, errstr); + vfprintf(stderr, errstr, ap); + va_end(ap); + exit(EXIT_FAILURE); +} + +Bool +grabkeyboard(void) { + unsigned int len; + + for(len = 1000; len; len--) { + if(XGrabKeyboard(dpy, parent, True, GrabModeAsync, GrabModeAsync, CurrentTime) + == GrabSuccess) + break; + usleep(1000); + } + return len > 0; +} + +void +kpress(XKeyEvent * e) { + char buf[sizeof text]; + int num; + unsigned int i, len; + KeySym ksym; + + len = strlen(text); + num = XLookupString(e, buf, sizeof buf, &ksym, NULL); + if(ksym == XK_KP_Enter) + ksym = XK_Return; + else if(ksym >= XK_KP_0 && ksym <= XK_KP_9) + ksym = (ksym - XK_KP_0) + XK_0; + else if(IsFunctionKey(ksym) || IsKeypadKey(ksym) + || IsMiscFunctionKey(ksym) || IsPFKey(ksym) + || IsPrivateKeypadKey(ksym)) + return; + /* first check if a control mask is omitted */ + if(e->state & ControlMask) { + switch(tolower(ksym)) { + default: + return; + case XK_a: + ksym = XK_Home; + break; + case XK_b: + ksym = XK_Left; + break; + case XK_c: + ksym = XK_Escape; + break; + case XK_e: + ksym = XK_End; + break; + case XK_f: + ksym = XK_Right; + break; + case XK_h: + ksym = XK_BackSpace; + break; + case XK_j: + ksym = XK_Return; + break; + case XK_k: + text[cursor] = '\0'; + break; + case XK_u: + memmove(text, text + cursor, sizeof text - cursor + 1); + cursor = 0; + break; + case XK_w: + if(cursor > 0) { + i = cursor; + while(i-- > 0 && text[i] == ' '); + while(i-- > 0 && text[i] != ' '); + memmove(text + i + 1, text + cursor, sizeof text - cursor + 1); + cursor = i + 1; + } + break; + case XK_y: + { + FILE *fp; + char *s; + if(!(fp = popen("sselp", "r"))) + eprint("dinput: cannot popen sselp\n"); + s = fgets(buf, sizeof buf, fp); + pclose(fp); + if(s == NULL) + return; + } + num = strlen(buf); + if(num && buf[num-1] == '\n') + buf[--num] = '\0'; + break; + } + } + switch(ksym) { + default: + num = MIN(num, sizeof text - cursor); + if(num && !iscntrl((int) buf[0])) { + memmove(text + cursor + num, text + cursor, sizeof text - cursor - num); + memcpy(text + cursor, buf, num); + cursor += num; + } + break; + case XK_BackSpace: + if(cursor == 0) + return; + for(i = 1; cursor - i > 0 && !IS_UTF8_1ST_CHAR(text[cursor - i]); i++); + memmove(text + cursor - i, text + cursor, sizeof text - cursor + i); + cursor -= i; + break; + case XK_Delete: + if(cursor == len) + return; + for(i = 1; cursor + i < len && !IS_UTF8_1ST_CHAR(text[cursor + i]); i++); + memmove(text + cursor, text + cursor + i, sizeof text - cursor); + break; + case XK_End: + cursor = len; + break; + case XK_Escape: + ret = 1; + running = False; + return; + case XK_Home: + cursor = 0; + break; + case XK_Left: + if(cursor == 0) + return; + while(cursor-- > 0 && !IS_UTF8_1ST_CHAR(text[cursor])); + break; + case XK_Return: + fprintf(stdout, "%s", text); + fflush(stdout); + running = False; + return; + case XK_Right: + if(cursor == len) + return; + while(cursor++ < len && !IS_UTF8_1ST_CHAR(text[cursor])); + break; + } + drawinput(); +} + +void +run(void) { + XEvent ev; + + /* main event loop */ + while(running && !XNextEvent(dpy, &ev)) + switch (ev.type) { + case KeyPress: + kpress(&ev.xkey); + break; + case Expose: + if(ev.xexpose.count == 0) + drawinput(); + break; + case VisibilityNotify: + if (ev.xvisibility.state != VisibilityUnobscured) + XRaiseWindow(dpy, win); + break; + } +} + +void +setup(Bool topbar) { + int i, j, x, y; +#if XINERAMA + int n; + XineramaScreenInfo *info = NULL; +#endif + XModifierKeymap *modmap; + XSetWindowAttributes wa; + XWindowAttributes pwa; + + /* 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); + + /* style */ + dc.norm[ColBG] = getcolor(normbgcolor); + dc.norm[ColFG] = getcolor(normfgcolor); + dc.sel[ColBG] = getcolor(selbgcolor); + dc.sel[ColFG] = getcolor(selfgcolor); + initfont(font); + + /* menu window */ + wa.override_redirect = True; + wa.background_pixmap = ParentRelative; + wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask | VisibilityChangeMask; + + /* menu window geometry */ + mh = (dc.font.height + 2); +#if XINERAMA + if(parent == RootWindow(dpy, screen) && XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) { + i = 0; + if(n > 1) { + int di; + unsigned int dui; + Window dummy; + if(XQueryPointer(dpy, parent, &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 + { + XGetWindowAttributes(dpy, parent, &pwa); + x = 0; + y = topbar ? 0 : pwa.height - mh; + mw = pwa.width; + } + + win = XCreateWindow(dpy, parent, x, y, mw, mh, 0, + DefaultDepth(dpy, screen), CopyFromParent, + DefaultVisual(dpy, screen), + CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); + + /* pixmap */ + dcsetup(); + if(prompt) + promptw = MIN(textw(prompt), mw / 5); + cursor = strlen(text); + XMapRaised(dpy, win); +} + +int +main(int argc, char *argv[]) { + unsigned int i; + Bool topbar = True; + + /* command line args */ + for(i = 1; i < argc; i++) + if(!strcmp(argv[i], "-b")) + topbar = False; + else if(!strcmp(argv[i], "-e")) { + if(++i < argc) parent = atoi(argv[i]); + } + else if(!strcmp(argv[i], "-fn")) { + if(++i < argc) font = argv[i]; + } + else if(!strcmp(argv[i], "-nb")) { + if(++i < argc) normbgcolor = argv[i]; + } + else if(!strcmp(argv[i], "-nf")) { + if(++i < argc) normfgcolor = argv[i]; + } + else if(!strcmp(argv[i], "-p")) { + if(++i < argc) prompt = argv[i]; + } + else if(!strcmp(argv[i], "-sb")) { + if(++i < argc) selbgcolor = argv[i]; + } + else if(!strcmp(argv[i], "-sf")) { + if(++i < argc) selfgcolor = argv[i]; + } + else if(!strcmp(argv[i], "-v")) + eprint("dinput-"VERSION", © 2006-2010 dinput engineers, see LICENSE for details\n"); + else if(!*text) + strncpy(text, argv[i], sizeof text); + else + eprint("usage: dinput [-b] [-e ] [-fn ] [-nb ] [-nf ]\n" + " [-p ] [-sb ] [-sf ] [-v] []\n"); + if(!setlocale(LC_CTYPE, "") || !XSupportsLocale()) + fprintf(stderr, "dinput: warning: no locale support\n"); + if(!(dpy = XOpenDisplay(NULL))) + eprint("dinput: cannot open display\n"); + screen = DefaultScreen(dpy); + if(!parent) + parent = RootWindow(dpy, screen); + + running = grabkeyboard(); + setup(topbar); + drawinput(); + XSync(dpy, False); + run(); + cleanup(); + XCloseDisplay(dpy); + return ret; +} -- cgit v1.2.3-54-g00ecf