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Make right/left arrow scroll list on single line mode.

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This commit is contained in:
Jari Vetoniemi 2014-10-26 17:52:00 +02:00
parent 4f2d73070c
commit 674a2a1ac2
1 changed files with 28 additions and 12 deletions
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40
lib/menu.c
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@ -484,6 +484,26 @@ bm_menu_poll_key(struct bm_menu *menu, uint32_t *out_unicode)
return key;
}
static void
menu_next(struct bm_menu *menu, uint32_t count)
{
if (menu->index < count - 1) {
menu->index++;
} else if (menu->wrap) {
menu->index = 0;
}
}
static void
menu_prev(struct bm_menu *menu, uint32_t count)
{
if (menu->index > 0) {
menu->index--;
} else if (menu->wrap) {
menu->index = count - 1;
}
}
enum bm_run_result
bm_menu_run_with_key(struct bm_menu *menu, enum bm_key key, uint32_t unicode)
{
@ -501,18 +521,22 @@ bm_menu_run_with_key(struct bm_menu *menu, enum bm_key key, uint32_t unicode)
switch (key) {
case BM_KEY_LEFT:
if (menu->filter) {
if (menu->lines > 0 && menu->filter) {
uint32_t oldCursor = menu->cursor;
menu->cursor -= bm_utf8_rune_prev(menu->filter, menu->cursor);
menu->curses_cursor -= bm_utf8_rune_width(menu->filter + menu->cursor, oldCursor - menu->cursor);
} else if (menu->lines == 0) {
menu_prev(menu, count);
}
break;
case BM_KEY_RIGHT:
if (menu->filter) {
if (menu->lines > 0 && menu->filter) {
uint32_t oldCursor = menu->cursor;
menu->cursor += bm_utf8_rune_next(menu->filter, menu->cursor);
menu->curses_cursor += bm_utf8_rune_width(menu->filter + oldCursor, menu->cursor - oldCursor);
} else if (menu->lines == 0) {
menu_next(menu, count);
}
break;
@ -526,19 +550,11 @@ bm_menu_run_with_key(struct bm_menu *menu, enum bm_key key, uint32_t unicode)
break;
case BM_KEY_UP:
if (menu->index > 0) {
menu->index--;
} else if (menu->wrap) {
menu->index = count - 1;
}
menu_prev(menu, count);
break;
case BM_KEY_DOWN:
if (menu->index < count - 1) {
menu->index++;
} else if (menu->wrap) {
menu->index = 0;
}
menu_next(menu, count);
break;
case BM_KEY_PAGE_UP: