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LibWeb: Implement "destroy" operation for documents

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This is basically the old "discard" updated for the world of navigables.

Co-authored-by: Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
This commit is contained in:
Andreas Kling 2022-12-16 23:26:17 +01:00
parent 7af09481f5
commit 1b78e0f059
Notes: sideshowbarker 2024-07-17 09:56:35 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/1b78e0f059
Pull-request: https://github.com/SerenityOS/serenity/pull/19535
2 changed files with 36 additions and 0 deletions
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34
Userland/Libraries/LibWeb/DOM/Document.cpp
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@ -42,6 +42,7 @@
#include <LibWeb/HTML/CustomElements/CustomElementDefinition.h>
#include <LibWeb/HTML/CustomElements/CustomElementReactionNames.h>
#include <LibWeb/HTML/CustomElements/CustomElementRegistry.h>
#include <LibWeb/HTML/DocumentState.h>
#include <LibWeb/HTML/EventLoop/EventLoop.h>
#include <LibWeb/HTML/EventNames.h>
#include <LibWeb/HTML/HTMLAnchorElement.h>
@ -2410,6 +2411,39 @@ void Document::discard()
// FIXME: 9. For each workletGlobalScope in document's worklet global scopes, terminate workletGlobalScope.
}
// https://html.spec.whatwg.org/multipage/document-lifecycle.html#destroy-a-document
void Document::destroy()
{
// 1. Destroy the active documents of each of document's descendant navigables.
for (auto navigable : descendant_navigables()) {
if (auto document = navigable->active_document())
document->destroy();
}
// 2. Set document's salvageable state to false.
m_salvageable = false;
// FIXME: 3. Run any unloading document cleanup steps for document that are defined by this specification and other applicable specifications.
// 4. Abort document.
abort();
// 5. Remove any tasks whose document is document from any task queue (without running those tasks).
HTML::main_thread_event_loop().task_queue().remove_tasks_matching([this](auto& task) {
return task.document() == this;
});
// 6. Set document's browsing context to null.
m_browsing_context = nullptr;
// 7. Set document's node navigable's active session history entry's document state's document to null.
navigable()->active_session_history_entry()->document_state->set_document(nullptr);
// FIXME: 8. Remove document from the owner set of each WorkerGlobalScope object whose set contains document.
// FIXME: 9. For each workletGlobalScope in document's worklet global scopes, terminate workletGlobalScope.
}
// https://html.spec.whatwg.org/multipage/browsing-the-web.html#abort-a-document
void Document::abort()
{

2
Userland/Libraries/LibWeb/DOM/Document.h
View file

@ -448,6 +448,8 @@ public:
Vector<JS::Handle<HTML::Navigable>> descendant_navigables();
Vector<JS::Handle<HTML::Navigable>> inclusive_descendant_navigables();
void destroy();
// https://html.spec.whatwg.org/multipage/window-object.html#discard-a-document
void discard();