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fix: improve movement behaviour of cursors on unindent

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This commit is contained in:
CJ van den Berg 2024-12-09 18:12:21 +01:00
parent 9856303ef6
commit cc14934aa5
Signed by: neurocyte
GPG key ID: 8EB1E1BB660E3FB9
1 changed files with 25 additions and 17 deletions
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42
src/tui/editor.zig
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@ -2602,15 +2602,10 @@ pub const Editor = struct {
}
pub const indent_meta = .{ .description = "Indent current line" };
fn unindent_cursor(self: *Self, root: Buffer.Root, cursel: *CurSel, cursor: Cursor, allocator: Allocator) error{Stop}!Buffer.Root {
const saved = cursel.*;
fn unindent_cursor(self: *Self, root: Buffer.Root, cursor: *Cursor, cursor_protect: ?*Cursor, allocator: Allocator) error{Stop}!Buffer.Root {
var newroot = root;
defer {
cursel.* = saved;
cursel.cursor.clamp_to_buffer(newroot, self.metrics);
}
cursel.selection = null;
cursel.cursor = cursor;
var cursel: CurSel = .{};
cursel.cursor = cursor.*;
const first = find_first_non_ws(root, cursel.cursor.row, self.metrics);
if (first == 0) return error.Stop;
const off = first % self.indent_size;
@ -2618,8 +2613,16 @@ pub const Editor = struct {
const sel = cursel.enable_selection();
sel.begin.move_begin();
try sel.end.move_to(root, sel.end.row, cols, self.metrics);
if (cursel.cursor.col < cols) try cursel.cursor.move_to(root, cursel.cursor.row, cols, self.metrics);
newroot = try self.delete_selection(root, cursel, allocator);
var saved = false;
if (cursor_protect) |cp| if (cp.row == cursor.row and cp.col < cols) {
cp.col = cols + 1;
saved = true;
};
newroot = try self.delete_selection(root, &cursel, allocator);
if (cursor_protect) |cp| if (saved) {
try cp.move_to(root, cp.row, 0, self.metrics);
cp.clamp_to_buffer(newroot, self.metrics);
};
return newroot;
}
@ -2629,20 +2632,25 @@ pub const Editor = struct {
var sel = sel_;
sel.normalize();
while (sel.begin.row < sel.end.row) : (sel.begin.row += 1)
root = try self.unindent_cursor(root, cursel, sel.begin, allocator);
root = try self.unindent_cursor(root, &sel.begin, &cursel.cursor, allocator);
if (sel.end.col > 0)
root = try self.unindent_cursor(root, cursel, sel.end, allocator);
root = try self.unindent_cursor(root, &sel.end, &cursel.cursor, allocator);
return root;
} else return self.unindent_cursor(root_, cursel, cursel.cursor, allocator);
} else return self.unindent_cursor(root_, &cursel.cursor, &cursel.cursor, allocator);
}
fn restore_cursels(self: *Self) void {
self.cursels.clearAndFree();
self.cursels = self.cursels_saved.clone() catch return;
}
pub fn unindent(self: *Self, _: Context) Result {
const b = try self.buf_for_update();
errdefer blk: {
self.cursels.clearAndFree();
self.cursels = self.cursels_saved.clone() catch break :blk;
}
errdefer self.restore_cursels();
const cursor_count = self.cursels.items.len;
const root = try self.with_cursels_mut(b.root, unindent_cursel, b.allocator);
if (self.cursels.items.len != cursor_count)
self.restore_cursels();
try self.update_buf(root);
}
pub const unindent_meta = .{ .description = "Unindent current line" };