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LibWeb: Implement the "top-level traversable" of a browsing context

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This commit is contained in:
Andreas Kling 2022-12-17 13:35:20 +01:00
parent 65467021e2
commit 6871fbce9f
2 changed files with 13 additions and 0 deletions
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11
Userland/Libraries/LibWeb/HTML/BrowsingContext.cpp
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@ -21,6 +21,7 @@
#include <LibWeb/HTML/RemoteBrowsingContext.h>
#include <LibWeb/HTML/SandboxingFlagSet.h>
#include <LibWeb/HTML/Scripting/WindowEnvironmentSettingsObject.h>
#include <LibWeb/HTML/TraversableNavigable.h>
#include <LibWeb/HTML/Window.h>
#include <LibWeb/HTML/WindowProxy.h>
#include <LibWeb/HighResolutionTime/TimeOrigin.h>
@ -290,6 +291,16 @@ void BrowsingContext::visit_edges(Cell::Visitor& visitor)
visitor.visit(m_previous_sibling);
}
// https://html.spec.whatwg.org/multipage/document-sequences.html#bc-traversable
JS::NonnullGCPtr<HTML::TraversableNavigable> BrowsingContext::top_level_traversable() const
{
// A browsing context's top-level traversable is its active document's node navigable's top-level traversable.
auto traversable = active_document()->navigable()->top_level_traversable();
VERIFY(traversable);
VERIFY(traversable->is_top_level_traversable());
return *traversable;
}
void BrowsingContext::did_edit(Badge<EditEventHandler>)
{
reset_cursor_blink_cycle();

2
Userland/Libraries/LibWeb/HTML/BrowsingContext.h
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@ -42,6 +42,8 @@ public:
virtual ~BrowsingContext() override;
JS::NonnullGCPtr<HTML::TraversableNavigable> top_level_traversable() const;
JS::GCPtr<BrowsingContext> parent() const { return m_parent; }
void append_child(JS::NonnullGCPtr<BrowsingContext>);
void remove_child(JS::NonnullGCPtr<BrowsingContext>);