dmenu

dynamic menu
git clone git://git.suckless.org/dmenu
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commit a9a5c6cc2d7d55ed7e556a4fe9d75307c6df2e84
parent a97f550aa7b81d2add1d2a99e594c038da01fc19
Author: Quentin Rameau <quinq@fifth.space>
Date:   Sat,  8 Oct 2016 14:08:28 +0200

add embedding support with -w option

Diffstat:
dmenu.1 | 5+++++
dmenu.c | 65+++++++++++++++++++++++++++++++++++++++++++++++++++++------------
2 files changed, 58 insertions(+), 12 deletions(-)

diff --git a/dmenu.1 b/dmenu.1 @@ -20,6 +20,8 @@ dmenu \- dynamic menu .IR color ] .RB [ \-sf .IR color ] +.RB [ \-w +.IR windowid ] .P .BR dmenu_run " ..." .SH DESCRIPTION @@ -75,6 +77,9 @@ defines the selected foreground color. .TP .B \-v prints version information to stdout, then exits. +.TP +.BI \-w " windowid" +embed into windowid. .SH USAGE dmenu is completely controlled by the keyboard. Items are selected using the arrow keys, page up, page down, home, and end. diff --git a/dmenu.c b/dmenu.c @@ -34,8 +34,8 @@ struct item { }; static char text[BUFSIZ] = ""; +static char *embed; static int bh, mw, mh; -static int sw, sh; /* X display screen geometry width, height */ static int inputw = 0, promptw; static int lrpad; /* sum of left and right padding */ static size_t cursor; @@ -46,7 +46,7 @@ static int mon = -1, screen; static Atom clip, utf8; static Display *dpy; -static Window root, win; +static Window root, parentwin, win; static XIC xic; static Drw *drw; @@ -175,11 +175,30 @@ drawmenu(void) } static void +grabfocus(void) +{ + struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 }; + Window focuswin; + int i, revertwin; + + for (i = 0; i < 100; ++i) { + XGetInputFocus(dpy, &focuswin, &revertwin); + if (focuswin == win) + return; + XSetInputFocus(dpy, win, RevertToParent, CurrentTime); + nanosleep(&ts, NULL); + } + die("cannot grab focus"); +} + +static void grabkeyboard(void) { struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 }; int i; + if (embed) + return; /* try to grab keyboard, we may have to wait for another process to ungrab */ for (i = 0; i < 1000; i++) { if (XGrabKeyboard(dpy, DefaultRootWindow(dpy), True, GrabModeAsync, @@ -497,6 +516,11 @@ run(void) if (ev.xexpose.count == 0) drw_map(drw, win, 0, 0, mw, mh); break; + case FocusIn: + /* regrab focus from parent window */ + if (ev.xfocus.window != win) + grabfocus(); + break; case KeyPress: keypress(&ev.xkey); break; @@ -539,7 +563,7 @@ setup(void) lines = MAX(lines, 0); mh = (lines + 1) * bh; #ifdef XINERAMA - if ((info = XineramaQueryScreens(dpy, &n))) { + if (parentwin == root && (info = XineramaQueryScreens(dpy, &n))) { XGetInputFocus(dpy, &w, &di); if (mon >= 0 && mon < n) i = mon; @@ -570,9 +594,12 @@ setup(void) } else #endif { + if (!XGetWindowAttributes(dpy, parentwin, &wa)) + die("could not get embedding window attributes: 0x%lx", + parentwin); x = 0; - y = topbar ? 0 : sh - mh; - mw = sw; + y = topbar ? 0 : wa.height - mh; + mw = wa.width; } promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0; inputw = MIN(inputw, mw/3); @@ -582,9 +609,8 @@ setup(void) swa.override_redirect = True; swa.background_pixel = scheme[SchemeNorm][ColBg].pixel; swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask; - win = XCreateWindow(dpy, root, x, y, mw, mh, 0, - DefaultDepth(dpy, screen), CopyFromParent, - DefaultVisual(dpy, screen), + win = XCreateWindow(dpy, parentwin, x, y, mw, mh, 0, + CopyFromParent, CopyFromParent, CopyFromParent, CWOverrideRedirect | CWBackPixel | CWEventMask, &swa); /* open input methods */ @@ -593,6 +619,15 @@ setup(void) XNClientWindow, win, XNFocusWindow, win, NULL); XMapRaised(dpy, win); + if (embed) { + XSelectInput(dpy, parentwin, FocusChangeMask); + if (XQueryTree(dpy, parentwin, &dw, &w, &dws, &du) && dws) { + for (i = 0; i < du && dws[i] != win; ++i) + XSelectInput(dpy, dws[i], FocusChangeMask); + XFree(dws); + } + grabfocus(); + } drw_resize(drw, mw, mh); drawmenu(); } @@ -601,13 +636,14 @@ static void usage(void) { fputs("usage: dmenu [-bfiv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n" - " [-nb color] [-nf color] [-sb color] [-sf color]\n", stderr); + " [-nb color] [-nf color] [-sb color] [-sf color] [-w windowid]\n", stderr); exit(1); } int main(int argc, char *argv[]) { + XWindowAttributes wa; int i, fast = 0; for (i = 1; i < argc; i++) @@ -641,6 +677,8 @@ main(int argc, char *argv[]) colors[SchemeSel][ColBg] = argv[++i]; else if (!strcmp(argv[i], "-sf")) /* selected foreground color */ colors[SchemeSel][ColFg] = argv[++i]; + else if (!strcmp(argv[i], "-w")) /* embedding window id */ + embed = argv[++i]; else usage(); @@ -650,9 +688,12 @@ main(int argc, char *argv[]) die("cannot open display"); screen = DefaultScreen(dpy); root = RootWindow(dpy, screen); - sw = DisplayWidth(dpy, screen); - sh = DisplayHeight(dpy, screen); - drw = drw_create(dpy, screen, root, sw, sh); + if (!embed || !(parentwin = strtol(embed, NULL, 0))) + parentwin = root; + if (!XGetWindowAttributes(dpy, parentwin, &wa)) + die("could not get embedding window attributes: 0x%lx", + parentwin); + drw = drw_create(dpy, screen, root, wa.width, wa.height); if (!drw_fontset_create(drw, fonts, LENGTH(fonts))) die("no fonts could be loaded."); lrpad = drw->fonts->h;