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authorPřemysl Janouch <p@janouch.name>2018-12-03 22:05:00 +0100
committerPřemysl Janouch <p@janouch.name>2018-12-03 22:05:00 +0100
commit4ce6454ebb6c12b75d59795be0b8691749c6f732 (patch)
treec3a51dd071bbf5275f27d47e86000beedb4814ac
parent315b662581f771ff521b2f826dede8470c082ed6 (diff)
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Add Norton Commander-like actions for F3 and F4
-rw-r--r--sdn.cpp47
1 files changed, 45 insertions, 2 deletions
diff --git a/sdn.cpp b/sdn.cpp
index 05e9cc2..14a337a 100644
--- a/sdn.cpp
+++ b/sdn.cpp
@@ -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;