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LibWeb: Make BrowsingContext GC-allocated

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(And BrowsingContextGroup had to come along for the ride as well.)
This solves a number of nasty reference cycles between browsing
contexts, history items, and their documents.
This commit is contained in:
Andreas Kling
2022-10-17 11:06:50 +02:00
parent 2898701459
commit 83c5ff57d8
Notes: sideshowbarker 2024-07-17 05:17:17 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/83c5ff57d8
Pull-request: https://github.com/SerenityOS/serenity/pull/15672
15 changed files with 225 additions and 44 deletions
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12
Userland/Libraries/LibWeb/HTML/BrowsingContextGroup.h
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@@ -8,14 +8,16 @@
#include <AK/HashMap.h>
#include <AK/NonnullRefPtr.h>
#include <AK/RefCounted.h>
#include <LibJS/Heap/Cell.h>
#include <LibWeb/Forward.h>
namespace Web::HTML {
class BrowsingContextGroup : public RefCounted<BrowsingContextGroup> {
class BrowsingContextGroup final : public JS::Cell {
JS_CELL(BrowsingContextGroup, JS::Cell);
public:
static NonnullRefPtr<BrowsingContextGroup> create_a_new_browsing_context_group(Page&);
static JS::NonnullGCPtr<BrowsingContextGroup> create_a_new_browsing_context_group(Page&);
~BrowsingContextGroup();
Page* page() { return m_page; }
@@ -30,8 +32,10 @@ public:
private:
explicit BrowsingContextGroup(Web::Page&);
virtual void visit_edges(Cell::Visitor&) override;
// https://html.spec.whatwg.org/multipage/browsers.html#browsing-context-group-set
OrderedHashTable<NonnullRefPtr<BrowsingContext>> m_browsing_context_set;
OrderedHashTable<BrowsingContext*> m_browsing_context_set;
WeakPtr<Page> m_page;
};