mirror of
https://github.com/lightpanda-io/browser.git
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80 lines
2.3 KiB
Zig
80 lines
2.3 KiB
Zig
// Copyright (C) 2023-2024 Lightpanda (Selecy SAS)
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//
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// Francis Bouvier <francis@lightpanda.io>
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// Pierre Tachoire <pierre@lightpanda.io>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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const std = @import("std");
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const parser = @import("netsurf");
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const css = @import("../css/css.zig");
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const Node = @import("../css/libdom.zig").Node;
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const NodeList = @import("nodelist.zig").NodeList;
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const MatchFirst = struct {
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n: ?*parser.Node = null,
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pub fn match(m: *MatchFirst, n: Node) !void {
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m.n = n.node;
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}
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};
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pub fn querySelector(alloc: std.mem.Allocator, n: *parser.Node, selector: []const u8) !?*parser.Node {
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const ps = try css.parse(alloc, selector, .{ .accept_pseudo_elts = true });
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defer ps.deinit(alloc);
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var m = MatchFirst{};
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_ = try css.matchFirst(ps, Node{ .node = n }, &m);
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return m.n;
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}
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const MatchAll = struct {
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alloc: std.mem.Allocator,
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nl: NodeList,
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fn init(alloc: std.mem.Allocator) MatchAll {
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return .{
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.alloc = alloc,
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.nl = NodeList.init(),
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};
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}
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fn deinit(m: *MatchAll) void {
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m.nl.deinit(m.alloc);
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}
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pub fn match(m: *MatchAll, n: Node) !void {
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try m.nl.append(m.alloc, n.node);
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}
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fn toOwnedList(m: *MatchAll) NodeList {
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defer m.nl = NodeList.init();
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return m.nl;
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}
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};
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pub fn querySelectorAll(alloc: std.mem.Allocator, n: *parser.Node, selector: []const u8) !NodeList {
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const ps = try css.parse(alloc, selector, .{ .accept_pseudo_elts = true });
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defer ps.deinit(alloc);
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var m = MatchAll.init(alloc);
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defer m.deinit();
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try css.matchAll(ps, Node{ .node = n }, &m);
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return m.toOwnedList();
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}
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