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LibWeb: Implement "get the target history entry" for navigables

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Aliaksandr Kalenik 2023-04-06 23:30:02 +03:00 • committed by Andreas Kling
parent d9d8896380
commit 6ec88b36b9
2 changed files with 22 additions and 0 deletions
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20
Userland/Libraries/LibWeb/HTML/Navigable.cpp
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@ -77,6 +77,26 @@ ErrorOr<void> Navigable::initialize_navigable(JS::NonnullGCPtr<DocumentState> do
return {};
}
// https://html.spec.whatwg.org/multipage/browsing-the-web.html#getting-the-target-history-entry
JS::GCPtr<SessionHistoryEntry> Navigable::get_the_target_history_entry(int target_step) const
{
// 1. Let entries be the result of getting session history entries for navigable.
auto& entries = get_session_history_entries();
// 2. Return the item in entries that has the greatest step less than or equal to step.
JS::GCPtr<SessionHistoryEntry> result = nullptr;
for (auto& entry : entries) {
auto entry_step = entry->step.get<int>();
if (entry_step <= target_step) {
if (!result || result->step.get<int>() < entry_step) {
result = entry;
}
}
}
return result;
}
// https://html.spec.whatwg.org/multipage/document-sequences.html#nav-document
JS::GCPtr<DOM::Document> Navigable::active_document()
{