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LibWeb: Flesh out apply the history step to setup the navigation API

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We now populate the navigation history entries in the navigation API and
fire more navigation events as appropriate.
This commit is contained in:
Andrew Kaster 2023-09-27 22:59:57 -06:00 • committed by Alexander Kalenik
parent a8091c009b
commit 6c1944ee61
11 changed files with 339 additions and 78 deletions
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52
Userland/Libraries/LibWeb/DOM/Document.cpp
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@ -71,6 +71,7 @@
#include <LibWeb/HTML/Location.h>
#include <LibWeb/HTML/MessageEvent.h>
#include <LibWeb/HTML/Navigable.h>
#include <LibWeb/HTML/Navigation.h>
#include <LibWeb/HTML/NavigationParams.h>
#include <LibWeb/HTML/Numbers.h>
#include <LibWeb/HTML/Origin.h>
@ -3621,7 +3622,7 @@ void Document::restore_the_history_object_state(JS::NonnullGCPtr<HTML::SessionHi
}
// https://html.spec.whatwg.org/multipage/browsing-the-web.html#update-document-for-history-step-application
void Document::update_for_history_step_application(JS::NonnullGCPtr<HTML::SessionHistoryEntry> entry, bool do_not_reactive, size_t script_history_length, size_t script_history_index)
void Document::update_for_history_step_application(JS::NonnullGCPtr<HTML::SessionHistoryEntry> entry, bool do_not_reactivate, size_t script_history_length, size_t script_history_index, Optional<Vector<JS::NonnullGCPtr<HTML::SessionHistoryEntry>>> entries_for_navigation_api, bool update_navigation_api)
{
// 1. Let documentIsNew be true if document's latest entry is null; otherwise false.
auto document_is_new = !m_latest_entry;
@ -3636,8 +3637,52 @@ void Document::update_for_history_step_application(JS::NonnullGCPtr<HTML::Sessio
history()->m_length = script_history_length;
// 5. If documentsEntryChanged is true, then:
// NOTE: documentsEntryChanged can be false for one of two reasons: either we are restoring from bfcache,
// or we are asynchronously finishing up a synchronous navigation which already synchronously set document's latest entry.
// The doNotReactivate argument distinguishes between these two cases.
if (documents_entry_changed) {
// FIXME: Implement this.
// 1. Let oldURL be document's latest entry's URL.
auto old_url = m_latest_entry ? m_latest_entry->url : AK::URL {};
// 2. Set document's latest entry to entry.
m_latest_entry = entry;
// 3. Restore the history object state given document and entry.
restore_the_history_object_state(entry);
// 4. Let navigation be history's relevant global object's navigation API.
auto navigation = verify_cast<HTML::Window>(HTML::relevant_global_object(*this)).navigation();
// 5. If documentIsNew is false, then:
if (!document_is_new) {
// AD HOC: Skip this in situations the spec steps don't account for
if (update_navigation_api) {
// 1. Update the navigation API entries for a same-document navigation given navigation, entry, and "traverse".
navigation->update_the_navigation_api_entries_for_a_same_document_navigation(entry, Bindings::NavigationType::Traverse);
}
// FIXME: 2. Fire an event named popstate at document's relevant global object, using PopStateEvent,
// with the state attribute initialized to document's history object's state and hasUAVisualTransition initialized to true
// if a visual transition, to display a cached rendered state of the latest entry, was done by the user agent.
// FIXME: 3. Restore persisted state given entry.
// FIXME: 4. If oldURL's fragment is not equal to entry's URL's fragment, then queue a global task on the DOM manipulation task source
// given document's relevant global object to fire an event named hashchange at document's relevant global object,
// using HashChangeEvent, with the oldURL attribute initialized to the serialization of oldURL and the newURL attribute
// initialized to the serialization of entry's URL.
}
// 6. Otherwise:
else {
// 1. Assert: entriesForNavigationAPI is given.
VERIFY(entries_for_navigation_api.has_value());
// FIXME: 2. Restore persisted state given entry.
// 3. Initialize the navigation API entries for a new document given navigation, entriesForNavigationAPI, and entry.
navigation->initialize_the_navigation_api_entries_for_a_new_document(*entries_for_navigation_api, entry);
}
}
// 6. If documentIsNew is true, then:
@ -3653,7 +3698,8 @@ void Document::update_for_history_step_application(JS::NonnullGCPtr<HTML::Sessio
}
// 7. Otherwise, if documentsEntryChanged is false and doNotReactivate is false, then:
if (!documents_entry_changed && !do_not_reactive) {
// NOTE: This is for bfcache restoration
if (!documents_entry_changed && !do_not_reactivate) {
// FIXME: 1. Assert: entriesForNavigationAPI is given.
// FIXME: 2. Reactivate document given entry and entriesForNavigationAPI.
}