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	From the HTML spec:
    Modulo platform conventions, it is suggested that the following
    elements should be considered as focusable areas and be sequentially
    focusable:
      ...
    - button elements
    - select elements
    - textarea elements
      ...
Also add a spec link to the existing HTMLAnchorElement::is_focusable().
Note that this still doesn't allow triggering keyboard-focused buttons,
checkboxes, or radio buttons - we don't seem to run the expected
activation behavior for any of them.
		
	
			
		
			
				
	
	
		
			56 lines
		
	
	
	
		
			2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			56 lines
		
	
	
	
		
			2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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 * Copyright (c) 2018-2020, 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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#pragma once
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#include <LibWeb/HTML/HTMLElement.h>
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#include <LibWeb/HTML/HTMLHyperlinkElementUtils.h>
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namespace Web::HTML {
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class HTMLAnchorElement final
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    : public HTMLElement
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    , public HTMLHyperlinkElementUtils {
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public:
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    using WrapperType = Bindings::HTMLAnchorElementWrapper;
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    HTMLAnchorElement(DOM::Document&, DOM::QualifiedName);
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    virtual ~HTMLAnchorElement() override;
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    String target() const { return attribute(HTML::AttributeNames::target); }
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    String download() const { return attribute(HTML::AttributeNames::download); }
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    // ^EventTarget
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    // https://html.spec.whatwg.org/multipage/interaction.html#the-tabindex-attribute:the-a-element
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    virtual bool is_focusable() const override { return has_attribute(HTML::AttributeNames::href); }
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    virtual bool is_html_anchor_element() const override { return true; }
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private:
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    void run_activation_behavior(Web::DOM::Event const&);
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    // ^DOM::Element
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    virtual void parse_attribute(FlyString const& name, String const& value) override;
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    // ^HTML::HTMLHyperlinkElementUtils
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    virtual DOM::Document& hyperlink_element_utils_document() override { return document(); }
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    virtual String hyperlink_element_utils_href() const override;
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    virtual void set_hyperlink_element_utils_href(String) override;
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    virtual bool hyperlink_element_utils_is_html_anchor_element() const final { return true; }
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    virtual bool hyperlink_element_utils_is_connected() const final { return is_connected(); }
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    virtual String hyperlink_element_utils_target() const final { return target(); }
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    virtual void hyperlink_element_utils_queue_an_element_task(HTML::Task::Source source, Function<void()> steps) override
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    {
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        queue_an_element_task(source, move(steps));
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    }
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};
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}
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namespace Web::DOM {
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template<>
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inline bool Node::fast_is<HTML::HTMLAnchorElement>() const { return is_html_anchor_element(); }
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}
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