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LibWeb/FileAPI: Implement aborting a FileReader read

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This fixes a timeout for the included WPT test.
This commit is contained in:
Shannon Booth 2025-01-05 11:05:53 +13:00 • committed by Andrew Kaster
commit 8e410f959c
Notes: github-actions[bot] 2025-01-30 21:26:29 +00:00
5 changed files with 153 additions and 8 deletions
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9
Libraries/LibWeb/FileAPI/FileReader.h
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2023, Shannon Booth <shannon@serenityos.org>
* Copyright (c) 2023-2025, Shannon Booth <shannon@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -10,6 +10,7 @@
#include <LibWeb/Bindings/PlatformObject.h>
#include <LibWeb/DOM/EventTarget.h>
#include <LibWeb/Forward.h>
#include <LibWeb/HTML/EventLoop/Task.h>
#include <LibWeb/WebIDL/ExceptionOr.h>
namespace Web::FileAPI {
@ -101,6 +102,12 @@ private:
static WebIDL::ExceptionOr<Result> blob_package_data(JS::Realm& realm, ByteBuffer, FileReader::Type type, Optional<String> const&, Optional<String> const& encoding_name);
void queue_a_task(GC::Ref<GC::Function<void()>>);
// Internal state to handle aborting the FileReader.
HashTable<HTML::TaskID> m_pending_tasks;
bool m_is_aborted { false };
// A FileReader has an associated state, that is "empty", "loading", or "done". It is initially "empty".
// https://w3c.github.io/FileAPI/#filereader-state
State m_state { State::Empty };