Look up bindings through a map
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A0420B94F92B9493
204
sdn.cpp
204
sdn.cpp
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@ -264,6 +264,8 @@ fun decode_attrs (const vector<string> &attrs) -> chtype {
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// --- Application -------------------------------------------------------------
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enum { ALT = 1 << 24, SYM = 1 << 25 }; // Outside the range of Unicode
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#define KEY(name) (SYM | KEY_ ## name)
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#define CTRL 31 &
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struct entry {
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@ -280,6 +282,40 @@ struct entry {
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}
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};
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#define ACTIONS(XX) XX(NONE) XX(CHOOSE) XX(CHOOSE_FULL) XX(QUIT) \
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XX(UP) XX(DOWN) XX(TOP) XX(BOTTOM) XX(PAGE_PREVIOUS) XX(PAGE_NEXT) \
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XX(SCROLL_UP) XX(SCROLL_DOWN) XX(GO_START) XX(GO_HOME) \
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XX(SEARCH) XX(RENAME) XX(RENAME_PREFILL) \
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XX(TOGGLE_FULL) XX(REDRAW) XX(RELOAD) \
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XX(INPUT_ABORT) XX(INPUT_CONFIRM) XX(INPUT_B_DELETE)
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#define XX(name) ACTION_ ## name,
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enum action { ACTIONS(XX) ACTION_COUNT };
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#undef XX
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static map<wint_t, action> g_normal_actions = {
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{ALT | '\r', ACTION_CHOOSE_FULL}, {ALT | KEY (ENTER), ACTION_CHOOSE_FULL},
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{'\r', ACTION_CHOOSE}, {KEY (ENTER), ACTION_CHOOSE},
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// M-o ought to be the same shortcut the navigator is launched with
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{ALT | 'o', ACTION_QUIT}, {'q', ACTION_QUIT},
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{'k', ACTION_UP}, {CTRL 'p', ACTION_UP}, {KEY (UP), ACTION_UP},
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{'j', ACTION_DOWN}, {CTRL 'n', ACTION_DOWN}, {KEY (DOWN), ACTION_DOWN},
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{'g', ACTION_TOP}, {ALT | '<', ACTION_TOP}, {KEY (HOME), ACTION_TOP},
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{'G', ACTION_BOTTOM}, {ALT | '>', ACTION_BOTTOM}, {KEY(END), ACTION_BOTTOM},
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{KEY (PPAGE), ACTION_PAGE_PREVIOUS}, {KEY (NPAGE), ACTION_PAGE_NEXT},
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{CTRL 'y', ACTION_SCROLL_UP}, {CTRL 'e', ACTION_SCROLL_DOWN},
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{'&', ACTION_GO_START}, {'~', ACTION_GO_HOME},
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{'/', ACTION_SEARCH}, {'s', ACTION_SEARCH},
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{ALT | 'e', ACTION_RENAME_PREFILL}, {'e', ACTION_RENAME},
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{'t', ACTION_TOGGLE_FULL}, {ALT | 't', ACTION_TOGGLE_FULL},
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{CTRL 'L', ACTION_REDRAW}, {'r', ACTION_RELOAD},
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};
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static map<wint_t, action> g_input_actions = {
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{27, ACTION_INPUT_ABORT}, {CTRL 'g', ACTION_INPUT_ABORT},
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{L'\r', ACTION_INPUT_CONFIRM}, {KEY (ENTER), ACTION_INPUT_CONFIRM},
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{KEY (BACKSPACE), ACTION_INPUT_B_DELETE},
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};
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#define LS(XX) XX(NORMAL, "no") XX(FILE, "fi") XX(RESET, "rs") \
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XX(DIRECTORY, "di") XX(SYMLINK, "ln") XX(MULTIHARDLINK, "mh") \
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XX(FIFO, "pi") XX(SOCKET, "so") XX(DOOR, "do") XX(BLOCK, "bd") \
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@ -567,30 +603,6 @@ fun search (const wstring &needle) {
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g.cursor = best;
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}
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fun handle_editor (wint_t c, bool is_char) {
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if (c == 27 || c == (CTRL L'g')) {
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g.editor_line.clear ();
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g.editor = 0;
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} else if (c == L'\r' || (!is_char && c == KEY_ENTER)) {
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if (g.editor == L'e') {
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auto mb = to_mb (g.editor_line);
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rename (g.entries[g.cursor].filename.c_str (), mb.c_str ());
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reload ();
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}
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g.editor_line.clear ();
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g.editor = 0;
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} else if (is_char) {
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g.editor_line += c;
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if (g.editor == L'/'
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|| g.editor == L's')
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search (g.editor_line);
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} else if (c == KEY_BACKSPACE) {
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if (!g.editor_line.empty ())
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g.editor_line.erase (g.editor_line.length () - 1);
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} else
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beep ();
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}
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fun change_dir (const string& path) {
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if (chdir (path.c_str ())) {
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beep ();
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@ -612,99 +624,118 @@ fun choose (const entry &entry) -> bool {
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return true;
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}
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fun handle (wint_t c, bool is_char) -> bool {
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fun handle_editor (wint_t c) {
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// FIXME: do not check editor actions by the prompt letter
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auto i = g_input_actions.find (c);
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switch (i == g_input_actions.end () ? ACTION_NONE : i->second) {
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case ACTION_INPUT_ABORT:
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g.editor_line.clear ();
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g.editor = 0;
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break;
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case ACTION_INPUT_CONFIRM:
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if (g.editor == L'e') {
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auto mb = to_mb (g.editor_line);
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rename (g.entries[g.cursor].filename.c_str (), mb.c_str ());
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reload ();
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}
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g.editor_line.clear ();
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g.editor = 0;
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break;
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case ACTION_INPUT_B_DELETE:
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if (!g.editor_line.empty ())
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g.editor_line.erase (g.editor_line.length () - 1);
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break;
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default:
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if (c & (ALT | SYM)) {
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beep ();
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} else {
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g.editor_line += c;
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if (g.editor == L'/'
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|| g.editor == L's')
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search (g.editor_line);
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}
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}
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}
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fun handle (wint_t c) -> bool {
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// If an editor is active, let it handle the key instead and eat it
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if (g.editor) {
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handle_editor (c, is_char);
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handle_editor (c);
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c = WEOF;
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}
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// Translate the Alt key into a bit outside the range of Unicode
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enum { ALT = 1 << 24, SYM = 1 << 25 };
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if (c == 27) {
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if (get_wch (&c) == ERR) {
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beep ();
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return true;
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}
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c |= ALT;
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}
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if (!is_char)
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c |= SYM;
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const auto ¤t = g.entries[g.cursor];
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switch (c) {
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case ALT | L'\r':
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case ALT | SYM | KEY_ENTER:
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auto i = g_normal_actions.find (c);
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switch (i == g_normal_actions.end () ? ACTION_NONE : i->second) {
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case ACTION_CHOOSE_FULL:
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g.chosen_full = true;
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g.chosen = current.filename;
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return false;
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case L'\r':
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case SYM | KEY_ENTER:
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case ACTION_CHOOSE:
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if (choose (current))
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break;
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return false;
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// M-o ought to be the same shortcut the navigator is launched with
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case ALT | L'o':
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case L'q':
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case ACTION_QUIT:
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return false;
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case L'k': case CTRL L'p': case SYM | KEY_UP:
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case ACTION_UP:
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g.cursor--;
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break;
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case L'j': case CTRL L'n': case SYM | KEY_DOWN:
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case ACTION_DOWN:
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g.cursor++;
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break;
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case L'g': case ALT | L'<': case SYM | KEY_HOME:
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case ACTION_TOP:
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g.cursor = 0;
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break;
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case L'G': case ALT | L'>': case SYM | KEY_END:
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case ACTION_BOTTOM:
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g.cursor = int (g.entries.size ()) - 1;
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break;
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case SYM | KEY_PPAGE: g.cursor -= LINES; break;
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case SYM | KEY_NPAGE: g.cursor += LINES; break;
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case ACTION_PAGE_PREVIOUS:
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g.cursor -= LINES;
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break;
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case ACTION_PAGE_NEXT:
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g.cursor += LINES;
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break;
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case ACTION_SCROLL_DOWN:
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g.offset++;
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break;
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case ACTION_SCROLL_UP:
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g.offset--;
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break;
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case CTRL L'e': g.offset++; break;
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case CTRL L'y': g.offset--; break;
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case '&':
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case ACTION_GO_START:
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change_dir (g.start_dir);
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break;
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case '~':
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case ACTION_GO_HOME:
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if (const auto *home = getenv ("HOME"))
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change_dir (home);
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else if (const auto *pw = getpwuid (getuid ()))
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change_dir (pw->pw_dir);
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break;
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case L't':
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case ALT | L't':
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g.full_view = !g.full_view;
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break;
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case ALT | L'e':
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g.editor_line = to_wide (current.filename);
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// Fall-through
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case L'e':
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g.editor = c & ~ALT;
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break;
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case L'/':
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case L's':
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case ACTION_SEARCH:
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g.editor = c;
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break;
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case ACTION_RENAME_PREFILL:
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g.editor_line = to_wide (current.filename);
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// Fall-through
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case ACTION_RENAME:
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g.editor = c & ~ALT;
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break;
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case CTRL L'L':
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case ACTION_TOGGLE_FULL:
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g.full_view = !g.full_view;
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break;
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case ACTION_REDRAW:
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clear ();
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break;
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case L'r':
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case ACTION_RELOAD:
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reload ();
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break;
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case SYM | KEY_RESIZE:
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case WEOF:
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break;
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default:
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beep ();
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if (c != KEY (RESIZE) && c != WEOF)
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beep ();
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}
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g.cursor = max (g.cursor, 0);
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g.cursor = min (g.cursor, int (g.entries.size ()) - 1);
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@ -827,6 +858,19 @@ fun load_configuration () {
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load_ls_colors (split (colors, ":"));
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}
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fun read_key (wint_t &c) -> bool {
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int res = get_wch (&c);
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if (res == ERR)
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return false;
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wint_t metafied{};
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if (c == 27 && (res = get_wch (&metafied)) != ERR)
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c = ALT | metafied;
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if (res == KEY_CODE_YES)
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c |= SYM;
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return true;
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}
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int main (int argc, char *argv[]) {
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(void) argc;
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(void) argv;
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@ -867,12 +911,8 @@ int main (int argc, char *argv[]) {
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}
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wint_t c;
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while (1) {
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while (!read_key (c) || handle (c))
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inotify_check ();
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int res = get_wch (&c);
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if (res != ERR && !handle (c, res == OK))
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break;
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}
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endwin ();
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// Presumably it is going to end up as an argument, so quote it
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