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Moved external shell commands into exec/key-handler script

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Gets called on all unset key mappings. Arguments are: key combo and
current file. Thanks to Francesco Orsenigo (xarvh) for the idea.
This commit is contained in:
Bert Münnich
2014-01-02 23:19:31 +01:00
parent b2eae528ed
commit f2e0c492bd
7 changed files with 98 additions and 100 deletions
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90
main.c
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@ -46,6 +46,18 @@ enum {
TITLE_LEN = 256
};
#define EXEC_REL_DIR ".sxiv/exec"
enum {
EXEC_INFO,
EXEC_KEY
};
typedef struct {
const char *name;
char *cmd;
} exec_t;
typedef struct {
struct timeval when;
bool active;
@ -71,9 +83,13 @@ int prefix;
bool resized = false;
const char * const INFO_SCRIPT = ".sxiv/exec/image-info";
exec_t exec[] = {
{ "image-info", NULL },
{ "key-handler", NULL }
};
struct {
char *script;
char *cmd;
int fd;
unsigned int i, lastsep;
bool open;
@ -221,7 +237,7 @@ void open_info(void)
static pid_t pid;
int pfd[2];
if (info.script == NULL || info.open || win.bar.h == 0)
if (info.cmd == NULL || info.open || win.bar.h == 0)
return;
if (info.fd != -1) {
close(info.fd);
@ -242,8 +258,8 @@ void open_info(void)
} else if (pid == 0) {
close(pfd[0]);
dup2(pfd[1], 1);
execl(info.script, info.script, files[fileidx].name, NULL);
warn("could not exec: %s", info.script);
execl(info.cmd, info.cmd, files[fileidx].name, NULL);
warn("could not exec: %s", info.cmd);
exit(EXIT_FAILURE);
}
}
@ -356,7 +372,7 @@ void update_info(void)
fn, img.multi.sel + 1, img.multi.cnt);
}
n += snprintf(rt + n, rlen - n, "%0*d/%d", fw, sel + 1, filecnt);
ow_info = info.script == NULL;
ow_info = info.cmd == NULL;
}
if (ow_info) {
fn = strlen(files[sel].name);
@ -418,6 +434,49 @@ void clear_resize(void)
resized = false;
}
void key_handler(const char *key, unsigned int mask)
{
pid_t pid;
int retval, status, n = mode == MODE_IMAGE ? fileidx : tns.sel;
char *cmd = exec[EXEC_KEY].cmd, kstr[32];
if (cmd == NULL || key == NULL)
return;
snprintf(kstr, sizeof(kstr), "%s%s%s%s",
mask & ControlMask ? "C-" : "",
mask & Mod1Mask ? "M-" : "",
mask & ShiftMask ? "S-" : "", key);
if ((pid = fork()) == 0) {
execl(cmd, cmd, kstr, files[n].path, NULL);
warn("could not exec key handler");
exit(EXIT_FAILURE);
} else if (pid < 0) {
warn("could not fork key handler");
return;
}
win_set_cursor(&win, CURSOR_WATCH);
waitpid(pid, &status, 0);
retval = WEXITSTATUS(status);
if (WIFEXITED(status) == 0 || retval != 0)
warn("key handler exited with non-zero return value: %d", retval);
if (mode == MODE_IMAGE) {
img_close(&img, true);
load_image(fileidx);
}
if (!tns_load(&tns, n, &files[n], true, mode == MODE_IMAGE) &&
mode == MODE_THUMB)
{
remove_file(tns.sel, false);
tns.dirty = true;
if (tns.sel >= tns.cnt)
tns.sel = tns.cnt - 1;
}
redraw();
}
#define MODMASK(mask) ((mask) & (ShiftMask|ControlMask|Mod1Mask))
void on_keypress(XKeyEvent *kev)
@ -438,6 +497,9 @@ void on_keypress(XKeyEvent *kev)
XLookupString(kev, &key, 1, &ksym, NULL);
sh = (kev->state & ShiftMask) && ksym != shksym ? ShiftMask : 0;
if (IsModifierKey(ksym))
return;
if ((ksym == XK_Escape && MODMASK(kev->state) == 0) ||
(key >= '0' && key <= '9'))
{
@ -456,6 +518,7 @@ void on_keypress(XKeyEvent *kev)
return;
}
}
key_handler(XKeysymToString(ksym), kev->state & ~sh);
}
void on_buttonpress(XButtonEvent *bev)
@ -706,16 +769,17 @@ int main(int argc, char **argv)
if ((homedir = getenv("HOME")) == NULL) {
warn("could not locate home directory");
} else {
len = strlen(homedir) + strlen(INFO_SCRIPT) + 2;
info.script = (char*) s_malloc(len);
snprintf(info.script, len, "%s/%s", homedir, INFO_SCRIPT);
if (access(info.script, X_OK) != 0) {
free(info.script);
info.script = NULL;
} else for (i = 0; i < ARRLEN(exec); i++) {
len = strlen(homedir) + strlen(EXEC_REL_DIR) + strlen(exec[i].name) + 3;
exec[i].cmd = (char*) s_malloc(len);
snprintf(exec[i].cmd, len, "%s/%s/%s", homedir, EXEC_REL_DIR, exec[i].name);
if (access(exec[i].cmd, X_OK) != 0) {
free(exec[i].cmd);
exec[i].cmd = NULL;
}
}
info.fd = -1;
info.cmd = exec[EXEC_INFO].cmd;
if (options->thumb_mode) {
mode = MODE_THUMB;