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Fix level popping

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This commit is contained in:
Přemysl Eric Janouch 2018-11-02 20:22:50 +01:00
parent 36454fb90c
commit 081b4db5c3
Signed by: p
GPG Key ID: A0420B94F92B9493
1 changed files with 21 additions and 18 deletions
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39
sdn.cpp
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@ -866,6 +866,24 @@ fun search (const wstring &needle) {
g.cursor = best; g.cursor = best;
} }
fun fix_cursor_and_offset () {
g.cursor = max (g.cursor, 0);
g.cursor = min (g.cursor, int (g.entries.size ()) - 1);
// Decrease the offset when more items can suddenly fit
int pushable = visible_lines () - (int (g.entries.size ()) - g.offset);
g.offset -= max (pushable, 0);
// Make sure cursor is visible
g.offset = max (g.offset, 0);
g.offset = min (g.offset, int (g.entries.size ()) - 1);
if (g.offset > g.cursor)
g.offset = g.cursor;
if (g.cursor - g.offset >= visible_lines ())
g.offset = g.cursor - visible_lines () + 1;
}
fun is_ancestor_dir (const string &ancestor, const string &of) -> bool { fun is_ancestor_dir (const string &ancestor, const string &of) -> bool {
if (strncmp (ancestor.c_str (), of.c_str (), ancestor.length ())) if (strncmp (ancestor.c_str (), of.c_str (), ancestor.length ()))
return false; return false;
@ -883,8 +901,8 @@ fun pop_levels () {
i++; i++;
g.levels.pop_back (); g.levels.pop_back ();
} }
if (!anchor.empty () && (g.cursor >= g.entries.size () fix_cursor_and_offset ();
|| g.entries[g.cursor].filename != anchor)) if (!anchor.empty () && g.entries[g.cursor].filename != anchor)
search (to_wide (anchor)); search (to_wide (anchor));
} }
@ -1064,22 +1082,7 @@ fun handle (wint_t c) -> bool {
if (c != KEY (RESIZE) && c != WEOF) if (c != KEY (RESIZE) && c != WEOF)
beep (); beep ();
} }
g.cursor = max (g.cursor, 0); fix_cursor_and_offset ();
g.cursor = min (g.cursor, int (g.entries.size ()) - 1);
// Decrease the offset when more items can suddenly fit
int pushable = visible_lines () - (int (g.entries.size ()) - g.offset);
g.offset -= max (pushable, 0);
// Make sure cursor is visible
g.offset = max (g.offset, 0);
g.offset = min (g.offset, int (g.entries.size ()) - 1);
if (g.offset > g.cursor)
g.offset = g.cursor;
if (g.cursor - g.offset >= visible_lines ())
g.offset = g.cursor - visible_lines () + 1;
update (); update ();
return true; return true;
} }