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LibCore: Add Resource for platform agnostic application resource loading

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The first implementation is simply raw files.
This commit is contained in:
Andrew Kaster 2023-10-02 14:36:53 -06:00 • committed by Andrew Kaster
parent f4a89c31c6
commit 0d417cd604
8 changed files with 393 additions and 0 deletions
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48
Userland/Libraries/LibCore/ResourceImplementationFile.cpp Normal file
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/*
* Copyright (c) 2023, Andrew Kaster <akaster@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/LexicalPath.h>
#include <AK/StringView.h>
#include <LibCore/DirIterator.h>
#include <LibCore/Resource.h>
#include <LibCore/ResourceImplementationFile.h>
namespace Core {
ResourceImplementationFile::ResourceImplementationFile(String base_directory)
: m_base_directory(move(base_directory))
{
}
ErrorOr<NonnullRefPtr<Resource>> ResourceImplementationFile::load_from_resource_scheme_uri(StringView uri)
{
StringView const resource_scheme = "resource://"sv;
VERIFY(uri.starts_with(resource_scheme));
auto path = TRY(String::from_utf8(uri.substring_view(resource_scheme.length())));
auto full_path = TRY(String::from_deprecated_string(LexicalPath::join(m_base_directory, path).string()));
if (is_directory(full_path))
return make_directory_resource(move(path));
return make_resource(path, TRY(MappedFile::map(full_path)));
}
Vector<String> ResourceImplementationFile::child_names_for_resource_scheme(Resource const& resource)
{
Vector<String> children;
Core::DirIterator it(resource.filesystem_path().release_value().to_deprecated_string(), Core::DirIterator::SkipParentAndBaseDir);
while (it.has_next())
children.append(MUST(String::from_deprecated_string(it.next_path())));
return children;
}
Optional<String> ResourceImplementationFile::filesystem_path_for_resource_scheme(String const& relative_path)
{
return MUST(String::from_deprecated_string(LexicalPath::join(m_base_directory, relative_path).string()));
}
}