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LibWeb: Add support for XHR response type Blob

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This commit is contained in:
Kenneth Myhra 2022-07-14 14:32:04 +02:00 • committed by Linus Groh
parent df8c49f6bf
commit 5806eeec08
3 changed files with 13 additions and 2 deletions
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5
Userland/Libraries/LibWeb/FileAPI/Blob.cpp
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@ -194,4 +194,9 @@ JS::Promise* Blob::array_buffer()
return promise;
}
JS::Object* Blob::create_wrapper(JS::GlobalObject& global_object)
{
return wrap(global_object, *this);
}
}

2
Userland/Libraries/LibWeb/FileAPI/Blob.h
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@ -47,6 +47,8 @@ public:
JS::Promise* text();
JS::Promise* array_buffer();
virtual JS::Object* create_wrapper(JS::GlobalObject&);
private:
Blob() = default;
static DOM::ExceptionOr<ByteBuffer> process_blob_parts(Vector<BlobPart> const& blob_parts);

8
Userland/Libraries/LibWeb/XHR/XMLHttpRequest.cpp
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@ -26,6 +26,7 @@
#include <LibWeb/Fetch/Infrastructure/HTTP.h>
#include <LibWeb/Fetch/Infrastructure/HTTP/Headers.h>
#include <LibWeb/Fetch/Infrastructure/HTTP/Methods.h>
#include <LibWeb/FileAPI/Blob.h>
#include <LibWeb/HTML/EventHandler.h>
#include <LibWeb/HTML/EventNames.h>
#include <LibWeb/HTML/Origin.h>
@ -117,8 +118,11 @@ DOM::ExceptionOr<JS::Value> XMLHttpRequest::response()
}
// 6. Otherwise, if this’s response type is "blob", set this’s response object to a new Blob object representing this’s received bytes with type set to the result of get a final MIME type for this.
else if (m_response_type == Bindings::XMLHttpRequestResponseType::Blob) {
// FIXME: Implement this once we have 'Blob'.
return DOM::SimpleException { DOM::SimpleExceptionType::TypeError, "XHR Blob type not implemented" };
auto blob_part_or_error = try_make_ref_counted<FileAPI::Blob>(m_received_bytes, get_final_mime_type().type());
if (blob_part_or_error.is_error())
return DOM::UnknownError::create("Out of memory."sv);
auto blob = TRY(FileAPI::Blob::create(Vector<FileAPI::BlobPart> { blob_part_or_error.release_value() }));
m_response_object = JS::make_handle(JS::Value(blob->create_wrapper(global_object)));
}
// 7. Otherwise, if this’s response type is "document", set a document response for this.
else if (m_response_type == Bindings::XMLHttpRequestResponseType::Document) {