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Add Norton Commander-like actions for F3 and F4

This commit is contained in:
Přemysl Eric Janouch 2018-12-03 22:05:00 +01:00
parent 315b662581
commit 4ce6454ebb
Signed by: p
GPG Key ID: A0420B94F92B9493
1 changed files with 45 additions and 2 deletions
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47
sdn.cpp
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@ -384,7 +384,7 @@ enum { ALT = 1 << 24, SYM = 1 << 25 }; // Outside the range of Unicode
#define CTRL 31 &
#define ACTIONS(XX) XX(NONE) XX(HELP) XX(QUIT) XX(QUIT_NO_CHDIR) \
XX(CHOOSE) XX(CHOOSE_FULL) XX(SORT_LEFT) XX(SORT_RIGHT) \
XX(CHOOSE) XX(CHOOSE_FULL) XX(VIEW) XX(EDIT) XX(SORT_LEFT) XX(SORT_RIGHT) \
XX(UP) XX(DOWN) XX(TOP) XX(BOTTOM) XX(PAGE_PREVIOUS) XX(PAGE_NEXT) \
XX(SCROLL_UP) XX(SCROLL_DOWN) XX(CHDIR) XX(GO_START) XX(GO_HOME) \
XX(SEARCH) XX(RENAME) XX(RENAME_PREFILL) \
@ -401,7 +401,8 @@ static const char *g_action_names[] = {ACTIONS(XX)};
static map<wint_t, action> g_normal_actions {
{ALT | '\r', ACTION_CHOOSE_FULL}, {ALT | KEY (ENTER), ACTION_CHOOSE_FULL},
{'\r', ACTION_CHOOSE}, {KEY (ENTER), ACTION_CHOOSE}, {'h', ACTION_HELP},
{'\r', ACTION_CHOOSE}, {KEY (ENTER), ACTION_CHOOSE},
{KEY (F (3)), ACTION_VIEW}, {KEY (F (4)), ACTION_EDIT}, {'h', ACTION_HELP},
{'q', ACTION_QUIT}, {ALT | 'q', ACTION_QUIT_NO_CHDIR},
// M-o ought to be the same shortcut the navigator is launched with
{ALT | 'o', ACTION_QUIT},
@ -800,6 +801,42 @@ fun show_message (const string &message, int ttl = 30) {
g.message_ttl = ttl;
}
fun run_program (initializer_list<const char*> list, const string &filename) {
endwin ();
switch (pid_t child = fork ()) {
int status;
case -1:
break;
case 0:
// Put the child in a new foreground process group...
setpgid (0, 0);
tcsetpgrp (STDOUT_FILENO, getpgid (0));
for (auto pager : list)
if (pager) execl ("/bin/sh", "/bin/sh", "-c", (string (pager)
+ " " + shell_escape (filename)).c_str (), NULL);
_exit (EXIT_FAILURE);
default:
// ...and make sure of it in the parent as well
(void) setpgid (child, child);
waitpid (child, &status, 0);
tcsetpgrp (STDOUT_FILENO, getpgid (0));
}
refresh ();
update ();
}
fun view (const string &filename) {
run_program ({(const char *) getenv ("PAGER"), "pager", "cat"}, filename);
}
fun edit (const string &filename) {
run_program ({(const char *) getenv ("VISUAL"),
(const char *) getenv ("EDITOR"), "vi"}, filename);
}
fun run_pager (FILE *contents) {
// We don't really need to set O_CLOEXEC, so we're not going to
rewind (contents);
@ -992,6 +1029,12 @@ fun handle (wint_t c) -> bool {
case ACTION_CHOOSE:
choose (current);
break;
case ACTION_VIEW:
view (current.filename);
break;
case ACTION_EDIT:
edit (current.filename);
break;
case ACTION_HELP:
show_help ();
break;