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LibWeb: Add SessionHistoryTraversalQueue

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Aliaksandr Kalenik 2023-07-25 01:22:57 +02:00 • committed by Andreas Kling
parent 6d866dc5ba
commit 08788072c1
5 changed files with 134 additions and 80 deletions
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29
Userland/Libraries/LibWeb/HTML/TraversableNavigable.cpp
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@ -479,24 +479,25 @@ void TraversableNavigable::traverse_the_history_by_delta(int delta)
// FIXME: 2. If sourceDocument is given, then:
// 3. Append the following session history traversal steps to traversable:
append_session_history_traversal_steps([this, delta] {
// 1. Let allSteps be the result of getting all used history steps for traversable.
auto all_steps = get_all_used_history_steps();
// 1. Let allSteps be the result of getting all used history steps for traversable.
auto all_steps = get_all_used_history_steps();
// 2. Let currentStepIndex be the index of traversable's current session history step within allSteps.
auto current_step_index = *all_steps.find_first_index(current_session_history_step());
// 2. Let currentStepIndex be the index of traversable's current session history step within allSteps.
auto current_step_index = *all_steps.find_first_index(current_session_history_step());
// 3. Let targetStepIndex be currentStepIndex plus delta
auto target_step_index = current_step_index + delta;
// 3. Let targetStepIndex be currentStepIndex plus delta
auto target_step_index = current_step_index + delta;
// 4. If allSteps[targetStepIndex] does not exist, then abort these steps.
if (target_step_index >= all_steps.size()) {
return;
}
// 4. If allSteps[targetStepIndex] does not exist, then abort these steps.
if (target_step_index >= all_steps.size()) {
return;
}
// 5. Apply the history step allSteps[targetStepIndex] to traversable, with checkForUserCancelation set to true,
// sourceSnapshotParams set to sourceSnapshotParams, and initiatorToCheck set to initiatorToCheck.
apply_the_history_step(all_steps[target_step_index]);
// 5. Apply the history step allSteps[targetStepIndex] to traversable, with checkForUserCancelation set to true,
// sourceSnapshotParams set to sourceSnapshotParams, and initiatorToCheck set to initiatorToCheck.
apply_the_history_step(all_steps[target_step_index]);
});
}
// https://html.spec.whatwg.org/multipage/browsing-the-web.html#apply-pending-history-changes