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64 lines
3.1 KiB
C++
64 lines
3.1 KiB
C++
/*
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* Copyright (c) 2022, Kenneth Myhra <kennethmyhra@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/FileAPI/File.h>
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namespace Web::FileAPI {
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File::File(ByteBuffer byte_buffer, String file_name, String type, i64 last_modified)
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: Blob(move(byte_buffer), move(type))
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, m_name(move(file_name))
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, m_last_modified(last_modified)
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{
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}
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// https://w3c.github.io/FileAPI/#ref-for-dom-file-file
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DOM::ExceptionOr<NonnullRefPtr<File>> File::create(Vector<BlobPart> const& file_bits, String const& file_name, Optional<FilePropertyBag> const& options)
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{
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// 1. Let bytes be the result of processing blob parts given fileBits and options.
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auto bytes = TRY_OR_RETURN_OOM(process_blob_parts(file_bits, static_cast<Optional<BlobPropertyBag> const&>(*options)));
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// 2. Let n be the fileName argument to the constructor.
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// NOTE: Underlying OS filesystems use differing conventions for file name; with constructed files, mandating UTF-16 lessens ambiquity when file names are converted to byte sequences.
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auto name = file_name;
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auto type = String::empty();
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i64 last_modified = 0;
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// 3. Process FilePropertyBag dictionary argument by running the following substeps:
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if (options.has_value()) {
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// 1. If the type member is provided and is not the empty string, let t be set to the type dictionary member.
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// If t contains any characters outside the range U+0020 to U+007E, then set t to the empty string and return from these substeps.
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// NOTE: t is set to empty string at declaration.
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if (!options->type.is_empty()) {
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if (is_basic_latin(options->type))
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type = options->type;
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}
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// 2. Convert every character in t to ASCII lowercase.
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if (!type.is_empty())
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type = options->type.to_lowercase();
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// 3. If the lastModified member is provided, let d be set to the lastModified dictionary member. If it is not provided, set d to the current date and time represented as the number of milliseconds since the Unix Epoch (which is the equivalent of Date.now() [ECMA-262]).
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// Note: Since ECMA-262 Date objects convert to long long values representing the number of milliseconds since the Unix Epoch, the lastModified member could be a Date object [ECMA-262].
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last_modified = options->last_modified.has_value() ? options->last_modified.value() : Time::now_realtime().to_milliseconds();
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}
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// 4. Return a new File object F such that:
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// 2. F refers to the bytes byte sequence.
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// NOTE: Spec started at 2 therefore keeping the same number sequence here.
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// 3. F.size is set to the number of total bytes in bytes.
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// 4. F.name is set to n.
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// 5. F.type is set to t.
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// 6. F.lastModified is set to d.
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return adopt_ref(*new File(move(bytes), move(name), move(type), last_modified));
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}
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DOM::ExceptionOr<NonnullRefPtr<File>> File::create_with_global_object(Bindings::WindowObject&, Vector<BlobPart> const& file_bits, String const& file_name, Optional<FilePropertyBag> const& options)
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{
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return create(file_bits, file_name, options);
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}
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}
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