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	 8f29bdb62c
			
		
	
	
		8f29bdb62c
		
	
	
	
	
		
			
			This is a universal value like `initial` and `inherit` and works by reverting the current value to whatever we had at the start of the current cascade origin. The implementation is somewhat inefficient as we make a copy of all current values at the start of each origin. I'm sure we can come up with a way to make this faster eventually.
		
			
				
	
	
		
			33 lines
		
	
	
	
		
			837 B
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			33 lines
		
	
	
	
		
			837 B
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2023, 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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| #pragma once
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| 
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| #include <LibWeb/CSS/StyleValue.h>
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| 
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| namespace Web::CSS {
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| 
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| class RevertStyleValue final : public StyleValueWithDefaultOperators<RevertStyleValue> {
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| public:
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|     static ErrorOr<ValueComparingNonnullRefPtr<RevertStyleValue>> the()
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|     {
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|         static ValueComparingNonnullRefPtr<RevertStyleValue> instance = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) RevertStyleValue));
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|         return instance;
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|     }
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|     virtual ~RevertStyleValue() override = default;
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| 
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|     ErrorOr<String> to_string() const override { return "revert"_string; }
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| 
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|     bool properties_equal(RevertStyleValue const&) const { return true; }
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| 
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| private:
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|     RevertStyleValue()
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|         : StyleValueWithDefaultOperators(Type::Revert)
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|     {
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|     }
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| };
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| 
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| }
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