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css: make CSSStyleSheet.insertRule index optional

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This commit is contained in:
Adrià Arrufat
2026-03-14 19:58:28 +09:00
parent e362a9cbc3
commit 351e44343d
2 changed files with 23 additions and 1 deletions
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21
src/browser/tests/css/stylesheet.html
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@@ -447,6 +447,27 @@
}
</script>
<script id="CSSStyleSheet_insertRule_default_index">
{
const style = document.createElement('style');
document.head.appendChild(style);
const sheet = style.sheet;
testing.expectEqual(0, sheet.cssRules.length);
// Call without index, should default to 0
sheet.insertRule('.test-default { color: blue; }');
testing.expectEqual(1, sheet.cssRules.length);
testing.expectEqual('.test-default', sheet.cssRules[0].selectorText);
// Insert another rule without index, should default to 0 and push the first one to index 1
sheet.insertRule('.test-at-0 { color: red; }');
testing.expectEqual(2, sheet.cssRules.length);
testing.expectEqual('.test-at-0', sheet.cssRules[0].selectorText);
testing.expectEqual('.test-default', sheet.cssRules[1].selectorText);
}
</script>
<script id="CSSStyleSheet_replaceSync">
{
const sheet = new CSSStyleSheet();

3
src/browser/webapi/css/CSSStyleSheet.zig
View File

@@ -55,7 +55,8 @@ pub fn getOwnerRule(self: *const CSSStyleSheet) ?*CSSRule {
return self._owner_rule;
}
pub fn insertRule(self: *CSSStyleSheet, rule: []const u8, index: u32, page: *Page) !u32 {
pub fn insertRule(self: *CSSStyleSheet, rule: []const u8, maybe_index: ?u32, page: *Page) !u32 {
const index = maybe_index orelse 0;
var it = Parser.parseStylesheet(rule);
const parsed_rule = it.next() orelse return error.SyntaxError;