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			71 lines
		
	
	
	
		
			2.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			71 lines
		
	
	
	
		
			2.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2022, 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/Bindings/MainThreadVM.h>
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| #include <LibWeb/HTML/BrowsingContext.h>
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| #include <LibWeb/HTML/BrowsingContextGroup.h>
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| #include <LibWeb/Page/Page.h>
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| 
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| namespace Web::HTML {
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| 
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| JS_DEFINE_ALLOCATOR(BrowsingContextGroup);
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| 
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| // https://html.spec.whatwg.org/multipage/browsers.html#browsing-context-group-set
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| static HashTable<JS::NonnullGCPtr<BrowsingContextGroup>>& user_agent_browsing_context_group_set()
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| {
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|     static HashTable<JS::NonnullGCPtr<BrowsingContextGroup>> set;
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|     return set;
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| }
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| 
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| BrowsingContextGroup::BrowsingContextGroup(JS::NonnullGCPtr<Web::Page> page)
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|     : m_page(page)
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| {
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|     user_agent_browsing_context_group_set().set(*this);
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| }
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| 
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| BrowsingContextGroup::~BrowsingContextGroup()
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| {
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|     user_agent_browsing_context_group_set().remove(*this);
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| }
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| 
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| void BrowsingContextGroup::visit_edges(Cell::Visitor& visitor)
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| {
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|     Base::visit_edges(visitor);
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|     visitor.visit(m_page);
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|     for (auto& context : m_browsing_context_set)
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|         visitor.visit(context);
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| }
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| 
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| // https://html.spec.whatwg.org/multipage/document-sequences.html#creating-a-new-browsing-context-group-and-document
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| auto BrowsingContextGroup::create_a_new_browsing_context_group_and_document(JS::NonnullGCPtr<Page> page) -> WebIDL::ExceptionOr<BrowsingContextGroupAndDocument>
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| {
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|     // 1. Let group be a new browsing context group.
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|     // 2. Append group to the user agent's browsing context group set.
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|     auto group = Bindings::main_thread_vm().heap().allocate_without_realm<BrowsingContextGroup>(page);
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| 
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|     // 3. Let browsingContext and document be the result of creating a new browsing context and document with null, null, and group.
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|     auto [browsing_context, document] = TRY(BrowsingContext::create_a_new_browsing_context_and_document(page, nullptr, nullptr, group));
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| 
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|     // 4. Append browsingContext to group.
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|     group->append(browsing_context);
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| 
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|     // 5. Return group and document.
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|     return BrowsingContextGroupAndDocument { group, document };
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| }
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| 
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| // https://html.spec.whatwg.org/multipage/browsers.html#bcg-append
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| void BrowsingContextGroup::append(BrowsingContext& browsing_context)
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| {
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|     VERIFY(browsing_context.is_top_level());
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| 
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|     // 1. Append browsingContext to group's browsing context set.
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|     m_browsing_context_set.set(browsing_context);
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| 
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|     // 2. Set browsingContext's group to group.
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|     browsing_context.set_group(this);
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| }
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| 
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| }
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