editor: Fix multicursor indent edge case where few lines would indent incorrectly (#30461)

This should have been part of [editor: Fix inconsistent relative indent
when using tab with multi
cursors](https://github.com/zed-industries/zed/pull/29519)

Before / After:


https://github.com/user-attachments/assets/b7ab0eef-2764-44dc-b51f-b96dccd5ecb3

Release Notes:

- N/A

---------

Co-authored-by: Ben Kunkle <ben.kunkle@gmail.com>
This commit is contained in:
Smit Barmase 2025-05-10 06:13:15 -07:00 committed by GitHub
parent 471e02d48f
commit 172a475515
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GPG key ID: B5690EEEBB952194
2 changed files with 123 additions and 10 deletions

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@ -8779,15 +8779,13 @@ impl Editor {
continue;
}
// If the selection is empty and the cursor is in the leading whitespace before the
// suggested indentation, then auto-indent the line.
let cursor = selection.head();
let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
if let Some(suggested_indent) =
suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
{
// If there exist any empty selection in the leading whitespace, then skip
// indent for selections at the boundary.
// Don't do anything if already at suggested indent
// and there is any other cursor which is not
if has_some_cursor_in_whitespace
&& cursor.column == current_indent.len
&& current_indent.len == suggested_indent.len
@ -8795,6 +8793,8 @@ impl Editor {
continue;
}
// Adjust line and move cursor to suggested indent
// if cursor is not at suggested indent
if cursor.column < suggested_indent.len
&& cursor.column <= current_indent.len
&& current_indent.len <= suggested_indent.len
@ -8811,6 +8811,14 @@ impl Editor {
}
continue;
}
// If current indent is more than suggested indent
// only move cursor to current indent and skip indent
if cursor.column < current_indent.len && current_indent.len > suggested_indent.len {
selection.start = Point::new(cursor.row, current_indent.len);
selection.end = selection.start;
continue;
}
}
// Otherwise, insert a hard or soft tab.