fix: reset background style when rendering status bar grip

src/tui/mode/helix.zig

@@ -522,6 +522,17 @@ const cmds_ = struct {
         try ed.add_cursor_next_match(.{});
     }
     pub const add_next_match_helix_meta: Meta = .{};
+
+    pub fn switch_to_lowercase(_: *void, ctx: Ctx) Result {
+        const mv = tui.mainview() orelse return;
+        const ed = mv.get_active_editor() orelse return;
+        const b = try ed.buf_for_update();
+        const root = try ed.with_cursels_mut_once_arg(b.root, switch_to_lowercase_cursel, ed.allocator, ctx);
+        try ed.update_buf(root);
+        ed.clamp();
+        ed.need_render();
+    }
+    pub const switch_to_lowercase_meta: Meta = .{ .description = "Switch to lowercase" };
 };
 
 fn match_bracket(root: Buffer.Root, cursel: *CurSel, ctx: command.Context, metrics: Buffer.Metrics) error{Stop}!void {
@@ -832,31 +843,26 @@ fn replace_cursel_with_character(ed: *Editor, root: Buffer.Root, cursel: *CurSel
     var egc: []const u8 = undefined;
     if (!(ctx.args.match(.{tp.extract(&egc)}) catch return error.Stop))
         return error.Stop;
-    const no_selection = try select_char_if_no_selection(cursel, root, ed.metrics);
+
-    var begin: Cursor = undefined;
+    const saved = cursel.*;
+    defer cursel.* = saved;
+
+    const selection = cursel.enable_selection(root, ed.metrics);
+    selection.normalize();
+
     var sel_length: usize = 1;
-    if (cursel.selection) |*sel| {
+    _ = root.get_range(selection.*, null, null, &sel_length, ed.metrics) catch return error.Stop;
-        sel.normalize();
+
-        begin = sel.*.begin;
-        _ = root.get_range(sel.*, null, null, &sel_length, ed.metrics) catch return error.Stop;
-    }
-    const total_length = sel_length * egc.len;
     var sfa = std.heap.stackFallback(4096, ed.allocator);
     const sfa_allocator = sfa.get();
+
+    const total_length = sel_length * egc.len;
     const replacement = sfa_allocator.alloc(u8, total_length) catch return error.Stop;
     defer sfa_allocator.free(replacement);
+
     for (0..sel_length) |i|
         @memcpy(replacement[i * egc.len .. (i + 1) * egc.len], egc);
-
+    return insert_replace_selection(ed, root, cursel, replacement, allocator) catch return error.Stop;
-    const root_ = insert_replace_selection(ed, root, cursel, replacement, allocator) catch return error.Stop;
-
-    if (no_selection) {
-        try cursel.cursor.move_left(root, ed.metrics);
-        cursel.disable_selection(root, ed.metrics);
-    } else {
-        cursel.selection = Selection{ .begin = begin, .end = cursel.cursor };
-    }
-    return root_;
 }
 
 fn move_noop(_: Buffer.Root, _: *Cursor, _: Buffer.Metrics) error{Stop}!void {}
@@ -1214,21 +1220,6 @@ fn move_cursor_carriage_return(root: Buffer.Root, cursel: CurSel, cursor: *Curso
     try Editor.move_cursor_right(root, cursor, metrics);
 }
 
-fn select_char_if_no_selection(cursel: *CurSel, root: Buffer.Root, metrics: Buffer.Metrics) !bool {
-    if (cursel.selection) |*sel_| {
-        const sel: *Selection = sel_;
-        if (sel.*.empty()) {
-            sel.*.begin = .{ .row = cursel.cursor.row, .col = cursel.cursor.col + 1, .target = cursel.cursor.target + 1 };
-            return true;
-        }
-        return false;
-    } else {
-        const sel = cursel.enable_selection(root, metrics);
-        sel.begin = .{ .row = cursel.cursor.row, .col = cursel.cursor.col + 1, .target = cursel.cursor.target + 1 };
-        return true;
-    }
-}
-
 fn is_cursel_from_extend_line_below(cursel: CurSel) bool {
     if (cursel.selection) |sel_| {
         var sel = sel_;
@@ -1238,6 +1229,29 @@ fn is_cursel_from_extend_line_below(cursel: CurSel) bool {
     return false;
 }
 
+fn switch_to_lowercase_cursel(
+    ed: *Editor,
+    root: Buffer.Root,
+    cursel: *CurSel,
+    allocator: Allocator,
+    _: command.Context,
+) error{Stop}!Buffer.Root {
+    const saved = cursel.*;
+    defer cursel.* = saved;
+
+    const selection = cursel.enable_selection(root, ed.metrics);
+
+    const ucased = blk: {
+        const selected_text = Editor.copy_selection(root, selection.*, allocator, ed.metrics) catch return error.Stop;
+        defer allocator.free(selected_text);
+
+        break :blk Buffer.unicode.to_lower(allocator, selected_text) catch return error.Stop;
+    };
+    defer allocator.free(ucased);
+
+    return insert_replace_selection(ed, root, cursel, ucased, allocator) catch return error.Stop;
+}
+
 const private = @This();
 // exports for unittests
 pub const test_internal = struct {

src/tui/status/bar.zig

@@ -33,6 +33,9 @@ fn on_layout(_: ?*anyopaque, w: *WidgetList) Widget.Layout {
 fn render_grip(ctx: ?*anyopaque, theme: *const Widget.Theme) void {
     const w: *WidgetList = @ptrCast(@alignCast(ctx.?));
     if (w.hover()) {
+        w.plane.cursor_move_yx(0, 0);
+        w.plane.set_base_style(theme.editor);
+        _ = w.plane.putstr("   ") catch {};
         w.plane.set_style(theme.statusbar_hover);
         w.plane.cursor_move_yx(0, 0);
         _ = w.plane.putstr("  ") catch {};