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LibWeb: Implement "finalize a same-document navigation"

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Aliaksandr Kalenik 2023-08-20 14:28:33 +02:00 • committed by Andreas Kling
parent 37f5253ec9
commit d5adb7f10c
2 changed files with 46 additions and 0 deletions
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44
Userland/Libraries/LibWeb/HTML/TraversableNavigable.cpp
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@ -538,4 +538,48 @@ void TraversableNavigable::destroy_top_level_traversable()
user_agent_top_level_traversable_set().remove(this);
}
// https://html.spec.whatwg.org/multipage/browsing-the-web.html#finalize-a-same-document-navigation
void finalize_a_same_document_navigation(JS::NonnullGCPtr<TraversableNavigable> traversable, JS::NonnullGCPtr<Navigable> target_navigable, JS::NonnullGCPtr<SessionHistoryEntry> target_entry, JS::GCPtr<SessionHistoryEntry> entry_to_replace)
{
// FIXME: 1. Assert: this is running on traversable's session history traversal queue.
// 2. If targetNavigable's active session history entry is not targetEntry, then return.
if (target_navigable->active_session_history_entry() != target_entry) {
return;
}
// 3. Let targetStep be null.
Optional<int> target_step;
// 4. Let targetEntries be the result of getting session history entries for targetNavigable.
auto& target_entries = target_navigable->get_session_history_entries();
// 5. If entryToReplace is null, then:
if (!entry_to_replace) {
// 1. Clear the forward session history of traversable.
traversable->clear_the_forward_session_history();
// 2. Set targetStep to traversable's current session history step + 1.
target_step = traversable->current_session_history_step() + 1;
// 3. Set targetEntry's step to targetStep.
target_entry->step = *target_step;
// 4. Append targetEntry to targetEntries.
target_entries.append(target_entry);
} else {
// 1. Replace entryToReplace with targetEntry in targetEntries.
*(target_entries.find(*entry_to_replace)) = target_entry;
// 2. Set targetEntry's step to entryToReplace's step.
target_entry->step = entry_to_replace->step;
// 3. Set targetStep to traversable's current session history step.
target_step = traversable->current_session_history_step();
}
// 6. Apply the push/replace history step targetStep to traversable.
traversable->apply_the_history_step(*target_step);
}
}