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@@ -13,6 +13,7 @@
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#include <LibWeb/CSS/StyleSheetList.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/HTML/Window.h>
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+#include <LibWeb/Platform/EventLoopPlugin.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::CSS {
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@@ -130,7 +131,9 @@ WebIDL::ExceptionOr<unsigned> CSSStyleSheet::insert_rule(StringView rule, unsign
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{
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// FIXME: 1. If the origin-clean flag is unset, throw a SecurityError exception.
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- // FIXME: 2. If the disallow modification flag is set, throw a NotAllowedError DOMException.
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+ // If the disallow modification flag is set, throw a NotAllowedError DOMException.
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+ if (disallow_modification())
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+ return WebIDL::NotAllowedError::create(realm(), "Can't call insert_rule() on non-modifiable stylesheets."_fly_string);
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// 3. Let parsed rule be the return value of invoking parse a rule with rule.
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auto context = m_style_sheet_list ? CSS::Parser::ParsingContext { m_style_sheet_list->document() } : CSS::Parser::ParsingContext { realm() };
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@@ -165,7 +168,9 @@ WebIDL::ExceptionOr<void> CSSStyleSheet::delete_rule(unsigned index)
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{
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// FIXME: 1. If the origin-clean flag is unset, throw a SecurityError exception.
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- // FIXME: 2. If the disallow modification flag is set, throw a NotAllowedError DOMException.
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+ // 2. If the disallow modification flag is set, throw a NotAllowedError DOMException.
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+ if (disallow_modification())
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+ return WebIDL::NotAllowedError::create(realm(), "Can't call delete_rule() on non-modifiable stylesheets."_fly_string);
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// 3. Remove a CSS rule in the CSS rules at index.
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auto result = m_rules->remove_a_css_rule(index);
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@@ -178,6 +183,53 @@ WebIDL::ExceptionOr<void> CSSStyleSheet::delete_rule(unsigned index)
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return result;
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}
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+// https://drafts.csswg.org/cssom/#dom-cssstylesheet-replace
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+JS::NonnullGCPtr<JS::Promise> CSSStyleSheet::replace(String text)
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+{
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+ // 1. Let promise be a promise
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+ auto promise = JS::Promise::create(realm());
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+
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+ // 2. If the constructed flag is not set, or the disallow modification flag is set, reject promise with a NotAllowedError DOMException and return promise.
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+ if (!constructed()) {
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+ promise->reject(WebIDL::NotAllowedError::create(realm(), "Can't call replace() on non-constructed stylesheets"_fly_string));
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+ return promise;
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+ }
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+
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+ if (disallow_modification()) {
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+ promise->reject(WebIDL::NotAllowedError::create(realm(), "Can't call replace() on non-modifiable stylesheets"_fly_string));
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+ return promise;
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+ }
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+
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+ // 3. Set the disallow modification flag.
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+ set_disallow_modification(true);
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+
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+ // 4. In parallel, do these steps:
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+ Platform::EventLoopPlugin::the().deferred_invoke([this, text = move(text), promise] {
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+ // 1. Let rules be the result of running parse a stylesheet’s contents from text.
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+ auto context = m_style_sheet_list ? CSS::Parser::ParsingContext { m_style_sheet_list->document() } : CSS::Parser::ParsingContext { realm() };
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+ auto* parsed_stylesheet = parse_css_stylesheet(context, text);
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+ auto& rules = parsed_stylesheet->rules();
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+
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+ // 2. If rules contains one or more @import rules, remove those rules from rules.
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+ JS::MarkedVector<JS::NonnullGCPtr<CSSRule>> rules_without_import(realm().heap());
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+ for (auto rule : rules) {
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+ if (rule->type() != CSSRule::Type::Import)
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+ rules_without_import.append(rule);
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+ }
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+
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+ // 3. Set sheet’s CSS rules to rules.
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+ m_rules->set_rules({}, rules_without_import);
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+
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+ // 4. Unset sheet’s disallow modification flag.
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+ set_disallow_modification(false);
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+
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+ // 5. Resolve promise with sheet.
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+ promise->fulfill(this);
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+ });
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+
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+ return promise;
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+}
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+
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// https://www.w3.org/TR/cssom/#dom-cssstylesheet-removerule
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WebIDL::ExceptionOr<void> CSSStyleSheet::remove_rule(unsigned index)
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{
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Tim Ledbetter