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LibWeb: Make Blob and File GC-allocated

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This commit is contained in:
Andreas Kling 2022-09-04 11:44:38 +02:00
parent 018d236439
commit 647ac1bdba
10 changed files with 77 additions and 61 deletions
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57
Userland/Libraries/LibWeb/FileAPI/Blob.cpp
View file

@ -7,12 +7,19 @@
#include <AK/GenericLexer.h>
#include <AK/StdLibExtras.h>
#include <LibJS/Runtime/ArrayBuffer.h>
#include <LibWeb/Bindings/BlobPrototype.h>
#include <LibWeb/Bindings/DOMExceptionWrapper.h>
#include <LibWeb/Bindings/IDLAbstractOperations.h>
#include <LibWeb/FileAPI/Blob.h>
#include <LibWeb/HTML/Window.h>
namespace Web::FileAPI {
DOM::ExceptionOr<JS::NonnullGCPtr<Blob>> Blob::create(HTML::Window& window, ByteBuffer byte_buffer, String type)
{
return JS::NonnullGCPtr(*window.heap().allocate<Blob>(window.realm(), window, move(byte_buffer), move(type)));
}
// https://w3c.github.io/FileAPI/#convert-line-endings-to-native
ErrorOr<String> convert_line_endings_to_native(String const& string)
{
@ -88,7 +95,7 @@ ErrorOr<ByteBuffer> process_blob_parts(Vector<BlobPart> const& blob_parts, Optio
return bytes.try_append(data_buffer.bytes());
},
// 3. If element is a Blob, append the bytes it represents to bytes.
[&](NonnullRefPtr<Blob> const& blob) -> ErrorOr<void> {
[&](JS::Handle<Blob> const& blob) -> ErrorOr<void> {
return bytes.try_append(blob->bytes());
}));
}
@ -105,25 +112,35 @@ bool is_basic_latin(StringView view)
return true;
}
Blob::Blob(ByteBuffer byte_buffer, String type)
: m_byte_buffer(move(byte_buffer))
, m_type(move(type))
Blob::Blob(HTML::Window& window)
: PlatformObject(window.realm())
{
set_prototype(&window.cached_web_prototype("Blob"));
}
Blob::Blob(ByteBuffer byte_buffer)
: m_byte_buffer(move(byte_buffer))
Blob::Blob(HTML::Window& window, ByteBuffer byte_buffer, String type)
: PlatformObject(window.realm())
, m_byte_buffer(move(byte_buffer))
, m_type(move(type))
{
set_prototype(&window.cached_web_prototype("Blob"));
}
Blob::Blob(HTML::Window& window, ByteBuffer byte_buffer)
: PlatformObject(window.realm())
, m_byte_buffer(move(byte_buffer))
{
set_prototype(&window.cached_web_prototype("Blob"));
}
Blob::~Blob() = default;
// https://w3c.github.io/FileAPI/#ref-for-dom-blob-blob
DOM::ExceptionOr<NonnullRefPtr<Blob>> Blob::create(Optional<Vector<BlobPart>> const& blob_parts, Optional<BlobPropertyBag> const& options)
DOM::ExceptionOr<JS::NonnullGCPtr<Blob>> Blob::create(HTML::Window& window, Optional<Vector<BlobPart>> const& blob_parts, Optional<BlobPropertyBag> const& options)
{
// 1. If invoked with zero parameters, return a new Blob object consisting of 0 bytes, with size set to 0, and with type set to the empty string.
if (!blob_parts.has_value() && !options.has_value())
return adopt_ref(*new Blob());
return JS::NonnullGCPtr(*window.heap().allocate<Blob>(window.realm(), window));
ByteBuffer byte_buffer {};
// 2. Let bytes be the result of processing blob parts given blobParts and options.
@ -148,16 +165,16 @@ DOM::ExceptionOr<NonnullRefPtr<Blob>> Blob::create(Optional<Vector<BlobPart>> co
}
// 4. Return a Blob object referring to bytes as its associated byte sequence, with its size set to the length of bytes, and its type set to the value of t from the substeps above.
return adopt_ref(*new Blob(move(byte_buffer), move(type)));
return JS::NonnullGCPtr(*window.heap().allocate<Blob>(window.realm(), window, move(byte_buffer), move(type)));
}
DOM::ExceptionOr<NonnullRefPtr<Blob>> Blob::create_with_global_object(HTML::Window&, Optional<Vector<BlobPart>> const& blob_parts, Optional<BlobPropertyBag> const& options)
DOM::ExceptionOr<JS::NonnullGCPtr<Blob>> Blob::create_with_global_object(HTML::Window& window, Optional<Vector<BlobPart>> const& blob_parts, Optional<BlobPropertyBag> const& options)
{
return Blob::create(blob_parts, options);
return Blob::create(window, blob_parts, options);
}
// https://w3c.github.io/FileAPI/#dfn-slice
DOM::ExceptionOr<NonnullRefPtr<Blob>> Blob::slice(Optional<i64> start, Optional<i64> end, Optional<String> const& content_type)
DOM::ExceptionOr<JS::NonnullGCPtr<Blob>> Blob::slice(Optional<i64> start, Optional<i64> end, Optional<String> const& content_type)
{
// 1. The optional start parameter is a value for the start point of a slice() call, and must be treated as a byte-order position, with the zeroth position representing the first byte.
// User agents must process slice() with start normalized according to the following:
@ -217,22 +234,19 @@ DOM::ExceptionOr<NonnullRefPtr<Blob>> Blob::slice(Optional<i64> start, Optional<
// b. S.size = span.
// c. S.type = relativeContentType.
auto byte_buffer = TRY_OR_RETURN_OOM(m_byte_buffer.slice(relative_start, span));
return adopt_ref(*new Blob(move(byte_buffer), move(relative_content_type)));
return JS::NonnullGCPtr(*heap().allocate<Blob>(realm(), global_object(), move(byte_buffer), move(relative_content_type)));
}
// https://w3c.github.io/FileAPI/#dom-blob-text
JS::Promise* Blob::text()
{
auto& vm = wrapper()->vm();
auto& realm = *vm.current_realm();
// FIXME: 1. Let stream be the result of calling get stream on this.
// FIXME: 2. Let reader be the result of getting a reader from stream. If that threw an exception, return a new promise rejected with that exception.
// FIXME: We still need to implement ReadableStream for this step to be fully valid.
// 3. Let promise be the result of reading all bytes from stream with reader
auto* promise = JS::Promise::create(realm);
auto* result = JS::js_string(vm, String { m_byte_buffer.bytes() });
auto* promise = JS::Promise::create(realm());
auto* result = JS::js_string(vm(), String { m_byte_buffer.bytes() });
// 4. Return the result of transforming promise by a fulfillment handler that returns the result of running UTF-8 decode on its first argument.
promise->fulfill(result);
@ -242,16 +256,13 @@ JS::Promise* Blob::text()
// https://w3c.github.io/FileAPI/#dom-blob-arraybuffer
JS::Promise* Blob::array_buffer()
{
auto& vm = wrapper()->vm();
auto& realm = *vm.current_realm();
// FIXME: 1. Let stream be the result of calling get stream on this.
// FIXME: 2. Let reader be the result of getting a reader from stream. If that threw an exception, return a new promise rejected with that exception.
// FIXME: We still need to implement ReadableStream for this step to be fully valid.
// 3. Let promise be the result of reading all bytes from stream with reader.
auto* promise = JS::Promise::create(realm);
auto buffer_result = JS::ArrayBuffer::create(realm, m_byte_buffer.size());
auto* promise = JS::Promise::create(realm());
auto buffer_result = JS::ArrayBuffer::create(realm(), m_byte_buffer.size());
if (buffer_result.is_error()) {
promise->reject(buffer_result.release_error().value().release_value());
return promise;

29
Userland/Libraries/LibWeb/FileAPI/Blob.h
View file

@ -7,18 +7,16 @@
#pragma once
#include <AK/NonnullRefPtr.h>
#include <AK/RefCounted.h>
#include <AK/String.h>
#include <AK/Vector.h>
#include <LibWeb/Bindings/BlobPrototype.h>
#include <LibWeb/Bindings/Wrappable.h>
#include <LibWeb/Bindings/PlatformObject.h>
#include <LibWeb/DOM/ExceptionOr.h>
#include <LibWeb/Forward.h>
#include <LibWeb/HTML/Window.h>
namespace Web::FileAPI {
using BlobPart = Variant<JS::Handle<JS::Object>, NonnullRefPtr<Blob>, String>;
using BlobPart = Variant<JS::Handle<JS::Object>, JS::Handle<Blob>, String>;
struct BlobPropertyBag {
String type = String::empty();
@ -29,26 +27,22 @@ struct BlobPropertyBag {
[[nodiscard]] ErrorOr<ByteBuffer> process_blob_parts(Vector<BlobPart> const& blob_parts, Optional<BlobPropertyBag> const& options = {});
[[nodiscard]] bool is_basic_latin(StringView view);
class Blob
: public RefCounted<Blob>
, public Weakable<Blob>
, public Bindings::Wrappable {
class Blob : public Bindings::PlatformObject {
WEB_PLATFORM_OBJECT(Blob, Bindings::PlatformObject);
public:
using WrapperType = Bindings::BlobWrapper;
Blob(ByteBuffer byte_buffer, String type);
virtual ~Blob() override;
static DOM::ExceptionOr<NonnullRefPtr<Blob>> create(Optional<Vector<BlobPart>> const& blob_parts = {}, Optional<BlobPropertyBag> const& options = {});
static DOM::ExceptionOr<NonnullRefPtr<Blob>> create_with_global_object(HTML::Window&, Optional<Vector<BlobPart>> const& blob_parts = {}, Optional<BlobPropertyBag> const& options = {});
static DOM::ExceptionOr<JS::NonnullGCPtr<Blob>> create(HTML::Window&, Optional<Vector<BlobPart>> const& blob_parts = {}, Optional<BlobPropertyBag> const& options = {});
static DOM::ExceptionOr<JS::NonnullGCPtr<Blob>> create(HTML::Window&, ByteBuffer, String type);
static DOM::ExceptionOr<JS::NonnullGCPtr<Blob>> create_with_global_object(HTML::Window&, Optional<Vector<BlobPart>> const& blob_parts = {}, Optional<BlobPropertyBag> const& options = {});
// https://w3c.github.io/FileAPI/#dfn-size
u64 size() const { return m_byte_buffer.size(); }
// https://w3c.github.io/FileAPI/#dfn-type
String const& type() const { return m_type; }
DOM::ExceptionOr<NonnullRefPtr<Blob>> slice(Optional<i64> start = {}, Optional<i64> end = {}, Optional<String> const& content_type = {});
DOM::ExceptionOr<JS::NonnullGCPtr<Blob>> slice(Optional<i64> start = {}, Optional<i64> end = {}, Optional<String> const& content_type = {});
JS::Promise* text();
JS::Promise* array_buffer();
@ -56,13 +50,16 @@ public:
ReadonlyBytes bytes() const { return m_byte_buffer.bytes(); }
protected:
Blob(ByteBuffer byte_buffer);
Blob(HTML::Window&, ByteBuffer, String type);
Blob(HTML::Window&, ByteBuffer);
private:
Blob() = default;
explicit Blob(HTML::Window&);
ByteBuffer m_byte_buffer {};
String m_type {};
};
}
WRAPPER_HACK(Blob, Web::FileAPI)

16
Userland/Libraries/LibWeb/FileAPI/File.cpp
View file

@ -5,18 +5,22 @@
*/
#include <LibWeb/FileAPI/File.h>
#include <LibWeb/HTML/Window.h>
namespace Web::FileAPI {
File::File(ByteBuffer byte_buffer, String file_name, String type, i64 last_modified)
: Blob(move(byte_buffer), move(type))
File::File(HTML::Window& window, ByteBuffer byte_buffer, String file_name, String type, i64 last_modified)
: Blob(window, move(byte_buffer), move(type))
, m_name(move(file_name))
, m_last_modified(last_modified)
{
set_prototype(&window.cached_web_prototype("File"));
}
File::~File() = default;
// https://w3c.github.io/FileAPI/#ref-for-dom-file-file
DOM::ExceptionOr<NonnullRefPtr<File>> File::create(Vector<BlobPart> const& file_bits, String const& file_name, Optional<FilePropertyBag> const& options)
DOM::ExceptionOr<JS::NonnullGCPtr<File>> File::create(HTML::Window& window, Vector<BlobPart> const& file_bits, String const& file_name, Optional<FilePropertyBag> const& options)
{
// 1. Let bytes be the result of processing blob parts given fileBits and options.
auto bytes = TRY_OR_RETURN_OOM(process_blob_parts(file_bits, static_cast<Optional<BlobPropertyBag> const&>(*options)));
@ -53,12 +57,12 @@ DOM::ExceptionOr<NonnullRefPtr<File>> File::create(Vector<BlobPart> const& file_
// 4. F.name is set to n.
// 5. F.type is set to t.
// 6. F.lastModified is set to d.
return adopt_ref(*new File(move(bytes), move(name), move(type), last_modified));
return JS::NonnullGCPtr(*window.heap().allocate<File>(window.realm(), window, move(bytes), move(name), move(type), last_modified));
}
DOM::ExceptionOr<NonnullRefPtr<File>> File::create_with_global_object(HTML::Window&, Vector<BlobPart> const& file_bits, String const& file_name, Optional<FilePropertyBag> const& options)
DOM::ExceptionOr<JS::NonnullGCPtr<File>> File::create_with_global_object(HTML::Window& window, Vector<BlobPart> const& file_bits, String const& file_name, Optional<FilePropertyBag> const& options)
{
return create(file_bits, file_name, options);
return create(window, file_bits, file_name, options);
}
}

11
Userland/Libraries/LibWeb/FileAPI/File.h
View file

@ -16,12 +16,13 @@ struct FilePropertyBag : BlobPropertyBag {
};
class File : public Blob {
WEB_PLATFORM_OBJECT(File, Blob);
public:
using WrapperType = Bindings::FileWrapper;
static DOM::ExceptionOr<JS::NonnullGCPtr<File>> create(HTML::Window&, Vector<BlobPart> const& file_bits, String const& file_name, Optional<FilePropertyBag> const& options = {});
static DOM::ExceptionOr<JS::NonnullGCPtr<File>> create_with_global_object(HTML::Window&, Vector<BlobPart> const& file_bits, String const& file_name, Optional<FilePropertyBag> const& options = {});
static DOM::ExceptionOr<NonnullRefPtr<File>> create(Vector<BlobPart> const& file_bits, String const& file_name, Optional<FilePropertyBag> const& options = {});
static DOM::ExceptionOr<NonnullRefPtr<File>> create_with_global_object(HTML::Window&, Vector<BlobPart> const& file_bits, String const& file_name, Optional<FilePropertyBag> const& options = {});
virtual ~File() override;
// https://w3c.github.io/FileAPI/#dfn-name
String const& name() const { return m_name; }
@ -29,10 +30,12 @@ public:
i64 last_modified() const { return m_last_modified; }
private:
File(ByteBuffer byte_buffer, String file_name, String type, i64 last_modified);
File(HTML::Window&, ByteBuffer, String file_name, String type, i64 last_modified);
String m_name;
i64 m_last_modified { 0 };
};
}
WRAPPER_HACK(File, Web::FileAPI)