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		c37820b898
		
	
	
	
	
		
			
			https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
		
			
				
	
	
		
			89 lines
		
	
	
	
		
			2.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			89 lines
		
	
	
	
		
			2.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2019-2021, Andreas Kling <kling@serenityos.org>
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|  *
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|  * SPDX-License-Identifier: BSD-2-Clause
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|  */
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| 
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| #include <LibWeb/CSS/CSSStyleSheet.h>
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| #include <LibWeb/CSS/Parser/Parser.h>
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| #include <LibWeb/CSS/StyleSheetList.h>
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| #include <LibWeb/DOM/Document.h>
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| #include <LibWeb/DOM/ExceptionOr.h>
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| 
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| namespace Web::CSS {
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| 
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| CSSStyleSheet::CSSStyleSheet(NonnullRefPtrVector<CSSRule> rules)
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|     : m_rules(CSSRuleList::create(move(rules)))
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| {
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| }
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| 
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| // https://www.w3.org/TR/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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| 
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|     // FIXME: 2. If the disallow modification flag is set, throw a NotAllowedError DOMException.
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| 
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|     // 3. Let parsed rule be the return value of invoking parse a rule with rule.
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|     auto parsed_rule = parse_css_rule(CSS::ParsingContext {}, rule);
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| 
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|     // 4. If parsed rule is a syntax error, return parsed rule.
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|     if (!parsed_rule)
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|         return DOM::SyntaxError::create("Unable to parse CSS rule.");
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| 
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|     // FIXME: 5. If parsed rule is an @import rule, and the constructed flag is set, throw a SyntaxError DOMException.
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| 
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|     // 6. Return the result of invoking insert a CSS rule rule in the CSS rules at index.
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|     auto result = m_rules->insert_a_css_rule(parsed_rule.release_nonnull(), index);
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| 
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|     if (!result.is_exception()) {
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|         if (m_style_sheet_list) {
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|             m_style_sheet_list->document().style_computer().invalidate_rule_cache();
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|             m_style_sheet_list->document().invalidate_style();
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|         }
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|     }
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| 
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|     return result;
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| }
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| 
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| // https://www.w3.org/TR/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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| 
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|     // FIXME: 2. If the disallow modification flag is set, throw a NotAllowedError DOMException.
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| 
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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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|     if (!result.is_exception()) {
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|         if (m_style_sheet_list) {
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|             m_style_sheet_list->document().style_computer().invalidate_rule_cache();
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|             m_style_sheet_list->document().invalidate_style();
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|         }
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|     }
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|     return result;
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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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| 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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| void CSSStyleSheet::for_each_effective_style_rule(Function<void(CSSStyleRule const&)> const& callback) const
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| {
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|     m_rules->for_each_effective_style_rule(callback);
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| }
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| 
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| bool CSSStyleSheet::evaluate_media_queries(HTML::Window const& window)
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| {
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|     return m_rules->evaluate_media_queries(window);
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| }
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| 
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| void CSSStyleSheet::set_style_sheet_list(Badge<StyleSheetList>, StyleSheetList* list)
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| {
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|     m_style_sheet_list = list;
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| }
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| 
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| }
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