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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
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@ -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;