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LibWeb: Fire traversable event during "apply the history step"

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These steps were recently clarified by Andrew in:

https://github.com/whatwg/html/commit/12b0d582
This commit is contained in:
Shannon Booth 2024-10-13 15:03:40 +13:00 committed by Andreas Kling
parent bd3ffcdabb
commit dc9861174b
Notes: github-actions[bot] 2024-10-14 18:50:02 +00:00 
Author: https://github.com/shannonbooth
Commit: https://github.com/LadybirdBrowser/ladybird/commit/dc9861174b5
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/1780
1 changed files with 18 additions and 3 deletions
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21
Userland/Libraries/LibWeb/HTML/TraversableNavigable.cpp
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@ -560,9 +560,24 @@ TraversableNavigable::HistoryStepResult TraversableNavigable::apply_the_history_
// 6. Let oldOrigin be targetEntry's document state's origin.
auto old_origin = target_entry->document_state()->origin();
// FIXME: 7. If navigable is not traversable, and targetEntry is not navigable's current session history entry,
// and oldOrigin is the same as navigable's current session history entry's document state's origin,
// then fire a traverse navigate event given targetEntry and userInvolvementForNavigateEvents.
// 7. If all of the following are true:
// * navigable is not traversable;
// * targetEntry is not navigable's current session history entry; and
// * oldOrigin is the same as navigable's current session history entry's document state's origin,
// then:
if (!navigable->is_traversable()
&& target_entry != navigable->current_session_history_entry()
&& old_origin == navigable->current_session_history_entry()->document_state()->origin()) {
// 1. Assert: userInvolvementForNavigateEvents is not null.
VERIFY(user_involvement_for_navigate_events.has_value());
// 2. Let navigation be navigable's active window's navigation API.
auto navigation = active_window()->navigation();
// 3. Fire a traverse navigate event at navigation given targetEntry and userInvolvementForNavigateEvents.
navigation->fire_a_traverse_navigate_event(*target_entry, *user_involvement_for_navigate_events);
}
auto after_document_populated = [old_origin, changing_navigable_continuation, &changing_navigable_continuations, &vm, &navigable](bool populated_cloned_target_she, JS::NonnullGCPtr<SessionHistoryEntry> target_entry) mutable {
changing_navigable_continuation->populated_target_entry = target_entry;