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add Element.matches web api #591

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May 2, 2025
Merged

add Element.matches web api #591

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16 changes: 15 additions & 1 deletion src/browser/dom/element.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -355,7 +355,12 @@ pub const Element = struct {
return state.renderer.height();
}

pub fn deinit(_: *parser.Element, _: std.mem.Allocator) void {}
pub fn _matches(self: *parser.Element, selectors: []const u8, state: *SessionState) !bool {
const cssParse = @import("../css/css.zig").parse;
const CssNodeWrap = @import("../css/libdom.zig").Node;
const s = try cssParse(state.call_arena, selectors, .{});
return s.match(CssNodeWrap{ .node = parser.elementToNode(self) });
}
};

// Tests
Expand Down Expand Up @@ -518,4 +523,13 @@ test "Browser.DOM.Element" {
.{ "document.getElementById('para').clientWidth", "2" },
.{ "document.getElementById('para').clientHeight", "1" },
}, .{});

try runner.testCases(&.{
.{ "const el = document.createElement('div');", "undefined" },
.{ "el.id = 'matches'; el.className = 'ok';", "ok" },
.{ "el.matches('#matches')", "true" },
.{ "el.matches('.ok')", "true" },
.{ "el.matches('#9000')", "false" },
.{ "el.matches('.notok')", "false" },
}, .{});
}
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