mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-11-04 07:10:57 +00:00
f87041bf3a
Resulting in a massive rename across almost everywhere! Alongside the namespace change, we now have the following names: * JS::NonnullGCPtr -> GC::Ref * JS::GCPtr -> GC::Ptr * JS::HeapFunction -> GC::Function * JS::CellImpl -> GC::Cell * JS::Handle -> GC::Root
117 lines
3.9 KiB
C++
117 lines
3.9 KiB
C++
/*
|
|
* Copyright (c) 2023, Shannon Booth <shannon@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/NonnullRefPtr.h>
|
|
#include <LibWeb/Bindings/PlatformObject.h>
|
|
#include <LibWeb/DOM/EventTarget.h>
|
|
#include <LibWeb/Forward.h>
|
|
#include <LibWeb/WebIDL/ExceptionOr.h>
|
|
|
|
namespace Web::FileAPI {
|
|
|
|
// https://w3c.github.io/FileAPI/#dfn-filereader
|
|
class FileReader : public DOM::EventTarget {
|
|
WEB_PLATFORM_OBJECT(FileReader, DOM::EventTarget);
|
|
GC_DECLARE_ALLOCATOR(FileReader);
|
|
|
|
public:
|
|
using Result = Variant<Empty, String, GC::Root<JS::ArrayBuffer>>;
|
|
|
|
virtual ~FileReader() override;
|
|
|
|
[[nodiscard]] static GC::Ref<FileReader> create(JS::Realm&);
|
|
static GC::Ref<FileReader> construct_impl(JS::Realm&);
|
|
|
|
// async read methods
|
|
WebIDL::ExceptionOr<void> read_as_array_buffer(Blob&);
|
|
WebIDL::ExceptionOr<void> read_as_binary_string(Blob&);
|
|
WebIDL::ExceptionOr<void> read_as_text(Blob&, Optional<String> const& encoding = {});
|
|
WebIDL::ExceptionOr<void> read_as_data_url(Blob&);
|
|
|
|
void abort();
|
|
|
|
// states
|
|
enum class State : u16 {
|
|
// The FileReader object has been constructed, and there are no pending reads. None of the read methods have been called.
|
|
// This is the default state of a newly minted FileReader object, until one of the read methods have been called on it.
|
|
Empty = 0,
|
|
|
|
// A File or Blob is being read. One of the read methods is being processed, and no error has occurred during the read.
|
|
Loading = 1,
|
|
|
|
// The entire File or Blob has been read into memory, OR a file read error occurred, OR the read was aborted using abort().
|
|
// The FileReader is no longer reading a File or Blob.
|
|
// If readyState is set to DONE it means at least one of the read methods have been called on this FileReader.
|
|
Done = 2,
|
|
};
|
|
|
|
// https://w3c.github.io/FileAPI/#dom-filereader-readystate
|
|
State ready_state() const { return m_state; }
|
|
|
|
// File or Blob data
|
|
|
|
// https://w3c.github.io/FileAPI/#dom-filereader-result
|
|
Result result() const { return m_result; }
|
|
|
|
// https://w3c.github.io/FileAPI/#dom-filereader-error
|
|
GC::Ptr<WebIDL::DOMException> error() const { return m_error; }
|
|
|
|
// event handler attributes
|
|
void set_onloadstart(WebIDL::CallbackType*);
|
|
WebIDL::CallbackType* onloadstart();
|
|
|
|
void set_onprogress(WebIDL::CallbackType*);
|
|
WebIDL::CallbackType* onprogress();
|
|
|
|
void set_onload(WebIDL::CallbackType*);
|
|
WebIDL::CallbackType* onload();
|
|
|
|
void set_onabort(WebIDL::CallbackType*);
|
|
WebIDL::CallbackType* onabort();
|
|
|
|
void set_onerror(WebIDL::CallbackType*);
|
|
WebIDL::CallbackType* onerror();
|
|
|
|
void set_onloadend(WebIDL::CallbackType*);
|
|
WebIDL::CallbackType* onloadend();
|
|
|
|
protected:
|
|
FileReader(JS::Realm&, ByteBuffer);
|
|
|
|
virtual void initialize(JS::Realm&) override;
|
|
|
|
virtual void visit_edges(JS::Cell::Visitor&) override;
|
|
|
|
private:
|
|
explicit FileReader(JS::Realm&);
|
|
|
|
enum class Type {
|
|
ArrayBuffer,
|
|
BinaryString,
|
|
Text,
|
|
DataURL,
|
|
};
|
|
|
|
WebIDL::ExceptionOr<void> read_operation(Blob&, Type, Optional<String> const& encoding_name = {});
|
|
|
|
static WebIDL::ExceptionOr<Result> blob_package_data(JS::Realm& realm, ByteBuffer, FileReader::Type type, Optional<String> const&, Optional<String> const& encoding_name);
|
|
|
|
// 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 };
|
|
|
|
// A FileReader has an associated result (null, a DOMString or an ArrayBuffer). It is initially null.
|
|
// https://w3c.github.io/FileAPI/#filereader-result
|
|
Result m_result;
|
|
|
|
// A FileReader has an associated error (null or a DOMException). It is initially null.
|
|
// https://w3c.github.io/FileAPI/#filereader-error
|
|
GC::Ptr<WebIDL::DOMException> m_error;
|
|
};
|
|
|
|
}
|