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add embedding support with -w option

master
Quentin Rameau 5 years ago
committed by Hiltjo Posthuma
parent
commit
a9a5c6cc2d
2 changed files with 58 additions and 12 deletions
  1. +5
    -0
      dmenu.1
  2. +53
    -12
      dmenu.c

+ 5
- 0
dmenu.1 View File

@ -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.


+ 53
- 12
dmenu.c View File

@ -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;
@ -174,12 +174,31 @@ drawmenu(void)
drw_map(drw, win, 0, 0, mw, mh);
}
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;


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