browser/src/browser/cssom/css_rule_list.zig

// Copyright (C) 2023-2024  Lightpanda (Selecy SAS)
//
// Francis Bouvier <francis@lightpanda.io>
// Pierre Tachoire <pierre@lightpanda.io>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

const std = @import("std");

const StyleSheet = @import("stylesheet.zig").StyleSheet;
const CSSRule = @import("css_rule.zig").CSSRule;
const CSSImportRule = @import("css_rule.zig").CSSImportRule;

pub const CSSRuleList = struct {
    list: std.ArrayListUnmanaged([]const u8),

    pub fn constructor() CSSRuleList {
        return .{ .list = .empty };
    }

    pub fn _item(self: *CSSRuleList, _index: u32) ?CSSRule {
        const index: usize = @intCast(_index);

        if (index > self.list.items.len) {
            return null;
        }

        // todo: for now, just return null.
        // this depends on properly parsing CSSRule
        return null;
    }

    pub fn get_length(self: *CSSRuleList) u32 {
        return @intCast(self.list.items.len);
    }
};

const testing = @import("../../testing.zig");
test "Browser.CSS.CSSRuleList" {
    var runner = try testing.jsRunner(testing.tracking_allocator, .{});
    defer runner.deinit();

    try runner.testCases(&.{
        .{ "let list = new CSSRuleList()", "undefined" },
        .{ "list instanceof CSSRuleList", "true" },
        .{ "list.length", "0" },
        .{ "list.item(0)", "null" },
    }, .{});
}