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LibWeb: Add CSSStyleSheet.{insert,delete,remove}Rule() APIs
Note that insertRule() is really just a big TODO right now.
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5 changed files with 73 additions and 2 deletions
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@ -5,6 +5,7 @@
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*/
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*/
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#include <LibWeb/CSS/CSSRuleList.h>
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#include <LibWeb/CSS/CSSRuleList.h>
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#include <LibWeb/DOM/ExceptionOr.h>
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namespace Web::CSS {
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namespace Web::CSS {
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@ -24,4 +25,28 @@ bool CSSRuleList::is_supported_property_index(u32 index) const
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return index < m_rules.size();
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return index < m_rules.size();
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}
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}
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// https://drafts.csswg.org/cssom/#remove-a-css-rule
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DOM::ExceptionOr<void> CSSRuleList::remove_a_css_rule(u32 index)
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{
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// 1. Set length to the number of items in list.
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auto length = m_rules.size();
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// 2. If index is greater than or equal to length, then throw an IndexSizeError exception.
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if (index >= length)
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return DOM::IndexSizeError::create("CSS rule index out of bounds.");
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// 3. Set old rule to the indexth item in list.
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auto& old_rule = m_rules[index];
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// FIXME: 4. If old rule is an @namespace at-rule, and list contains anything other than @import at-rules, and @namespace at-rules, throw an InvalidStateError exception.
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(void)old_rule;
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// 5. Remove rule old rule from list at the zero-indexed position index.
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m_rules.remove(index);
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// FIXME: 6. Set old rule’s parent CSS rule and parent CSS style sheet to null.
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return {};
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}
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}
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}
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@ -47,6 +47,8 @@ public:
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bool is_supported_property_index(u32 index) const;
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bool is_supported_property_index(u32 index) const;
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DOM::ExceptionOr<void> remove_a_css_rule(u32 index);
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private:
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private:
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explicit CSSRuleList(NonnullRefPtrVector<CSSRule>&&);
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explicit CSSRuleList(NonnullRefPtrVector<CSSRule>&&);
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@ -5,6 +5,7 @@
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*/
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*/
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#include <LibWeb/CSS/CSSStyleSheet.h>
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#include <LibWeb/CSS/CSSStyleSheet.h>
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#include <LibWeb/DOM/ExceptionOr.h>
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namespace Web::CSS {
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namespace Web::CSS {
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@ -17,4 +18,42 @@ CSSStyleSheet::~CSSStyleSheet()
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{
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{
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}
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}
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// https://drafts.csswg.org/cssom/#dom-cssstylesheet-insertrule
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DOM::ExceptionOr<unsigned> CSSStyleSheet::insert_rule(StringView 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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// Let parsed rule be the return value of invoking parse a rule with rule.
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// If parsed rule is a syntax error, return parsed rule.
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// If parsed rule is an @import rule, and the constructed flag is set, throw a SyntaxError DOMException.
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// Return the result of invoking insert a CSS rule rule in the CSS rules at index.
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(void)index;
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(void)rule;
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TODO();
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}
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// https://drafts.csswg.org/cssom/#dom-cssstylesheet-deleterule
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DOM::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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// 3. Remove a CSS rule in the CSS rules at index.
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return m_rules->remove_a_css_rule(index);
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}
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// https://drafts.csswg.org/cssom/#dom-cssstylesheet-removerule
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DOM::ExceptionOr<void> CSSStyleSheet::remove_rule(unsigned index)
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{
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// The removeRule(index) method must run the same steps as deleteRule().
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return delete_rule(index);
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}
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}
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}
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@ -36,6 +36,10 @@ public:
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CSSRuleList* css_rules() { return m_rules; }
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CSSRuleList* css_rules() { return m_rules; }
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CSSRuleList const* css_rules() const { return m_rules; }
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CSSRuleList const* css_rules() const { return m_rules; }
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DOM::ExceptionOr<unsigned> insert_rule(StringView rule, unsigned index);
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DOM::ExceptionOr<void> remove_rule(unsigned index);
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DOM::ExceptionOr<void> delete_rule(unsigned index);
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template<typename Callback>
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template<typename Callback>
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void for_each_effective_style_rule(Callback callback) const
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void for_each_effective_style_rule(Callback callback) const
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{
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{
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@ -1,6 +1,7 @@
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interface CSSStyleSheet : StyleSheet {
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interface CSSStyleSheet : StyleSheet {
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// readonly attribute CSSRule? ownerRule;
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// readonly attribute CSSRule? ownerRule;
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[SameObject] readonly attribute CSSRuleList cssRules;
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[SameObject] readonly attribute CSSRuleList cssRules;
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// unsigned long insertRule(CSSOMString rule, optional unsigned long index = 0);
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unsigned long insertRule(CSSOMString rule, optional unsigned long index = 0);
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// undefined deleteRule(unsigned long index);
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undefined deleteRule(unsigned long index);
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undefined removeRule(unsigned long index);
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};
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};
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