/
UTI.swift
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/
UTI.swift
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// The MIT License (MIT)
//
// Copyright (c) 2015 Hiroki Kato
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
import Foundation
#if os(iOS)
import MobileCoreServices
#endif
public struct UTI: CustomStringConvertible, CustomDebugStringConvertible, Equatable {
public let utiString: String
// MARK: - Initialize
public init(_ utiString: String) {
self.utiString = utiString
}
public init?(filenameExtension: String, conformingTo: UTI? = nil) {
let conformingToUtiString: CFString? = conformingTo?.utiString as CFString?
guard let rawUti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, filenameExtension as CFString, conformingToUtiString)?.takeRetainedValue() else { return nil }
self.utiString = rawUti as String
}
public init?(mimeType: String, conformingTo: UTI? = nil) {
let conformingToUtiString: CFString? = conformingTo?.utiString as CFString?
guard let rawUti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType, mimeType as CFString, conformingToUtiString)?.takeRetainedValue() else { return nil }
self.utiString = rawUti as String
}
#if os(macOS)
public init?(pasteBoardType: String, conformingTo: UTI? = nil) {
let conformingToUtiString: CFString? = conformingTo?.utiString as CFString?
guard let rawUti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassNSPboardType, pasteBoardType as CFString, conformingToUtiString)?.takeRetainedValue() else { return nil }
self.utiString = rawUti as String
}
public init?(OSType: String, conformingTo: UTI? = nil) {
let conformingToUtiString: CFString? = conformingTo?.utiString as CFString?
guard let rawUti = UTTypeCreatePreferredIdentifierForTag(kUTTagClassOSType, OSType as CFString, conformingToUtiString)?.takeRetainedValue() else { return nil }
self.utiString = rawUti as String
}
#endif
// MARK: -
private static func UTIs(for tagClass: String, tag: String, conformingTo: UTI?) -> [UTI] {
let conformingToUTIString: CFString? = conformingTo?.utiString as CFString?
guard let rawUTIs = UTTypeCreateAllIdentifiersForTag(tagClass as CFString, tag as CFString, conformingToUTIString)?.takeRetainedValue() else { return [] }
return (rawUTIs as NSArray as? [String] ?? []).map { UTI($0) }
}
public static func UTIs(fromFilenameExtension filenameExtension: String, conformingTo: UTI? = nil) -> [UTI] {
return UTIs(for: kUTTagClassFilenameExtension as String, tag: filenameExtension, conformingTo: conformingTo)
}
public static func UTIs(fromMimeType mimeType: String, conformingTo: UTI? = nil) -> [UTI] {
return UTIs(for: kUTTagClassMIMEType as String, tag: mimeType, conformingTo: conformingTo)
}
#if os(macOS)
public static func UTIs(fromPasteBoardType pasteBoardType: String, conformingTo: UTI? = nil) -> [UTI] {
return UTIs(for: kUTTagClassNSPboardType as String, tag: pasteBoardType, conformingTo: conformingTo)
}
public static func UTIs(fromOTType OSType: String, conformingTo: UTI? = nil) -> [UTI] {
return UTIs(for: kUTTagClassOSType as String, tag: OSType, conformingTo: conformingTo)
}
#endif
// MARK: - Tags
private func tag(withClass tagClass: String) -> String? {
return UTTypeCopyPreferredTagWithClass(utiString as CFString, tagClass as CFString)?.takeRetainedValue() as String?
}
@available(macOS, introduced:10.10)
@available(iOS, introduced:8.0)
private func tags(withClass tagClass: String) -> [String] {
guard let tags = UTTypeCopyAllTagsWithClass(utiString as CFString, tagClass as CFString)?.takeRetainedValue() else { return [] }
return tags as NSArray as? [String] ?? []
}
public var filenameExtension: String? {
return tag(withClass: kUTTagClassFilenameExtension as String)
}
@available(macOS, introduced:10.10)
@available(iOS, introduced:8.0)
public var filenameExtensions: [String] {
return tags(withClass: kUTTagClassFilenameExtension as String)
}
public var mimeType: String? {
return tag(withClass: kUTTagClassMIMEType as String)
}
@available(macOS, introduced:10.10)
@available(iOS, introduced:8.0)
public var mimeTypes: [String] {
return tags(withClass: kUTTagClassMIMEType as String)
}
#if os(macOS)
public var pasteBoardType: String? {
return tag(withClass: kUTTagClassNSPboardType as String)
}
@available(macOS, introduced:10.10)
public var pasteBoardTypes: [String] {
return tags(withClass: kUTTagClassNSPboardType as String)
}
public var OSType: String? {
return tag(withClass: kUTTagClassOSType as String)
}
@available(macOS, introduced:10.10)
public var OSTypes: [String] {
return tags(withClass: kUTTagClassOSType as String)
}
#endif
// MARK: - Status
@available(macOS, introduced:10.10)
@available(iOS, introduced:8.0)
public var isDeclared: Bool {
return UTTypeIsDeclared(utiString as CFString)
}
@available(macOS, introduced:10.10)
@available(iOS, introduced:8.0)
public var isDynamic: Bool {
return UTTypeIsDynamic(utiString as CFString)
}
// MARK: - Declaration
public struct Declaration: CustomStringConvertible, CustomDebugStringConvertible {
fileprivate let raw: [AnyHashable: Any]
public var exportedTypeDeclarations: [Declaration] {
return (raw[kUTExportedTypeDeclarationsKey as AnyHashable] as? [[AnyHashable: Any]] ?? []).map { Declaration(declaration: $0) }
}
public var importedTypeDeclarations: [Declaration] {
return (raw[kUTImportedTypeDeclarationsKey as AnyHashable] as? [[AnyHashable: Any]] ?? []).map { Declaration(declaration: $0) }
}
public var identifier: String? {
return raw[kUTTypeIdentifierKey as AnyHashable] as? String
}
public var tagSpecification: [AnyHashable: Any] {
return raw[kUTTypeTagSpecificationKey as AnyHashable] as? [AnyHashable: Any] ?? [:]
}
public var conformsTo: [UTI] {
switch raw[kUTTypeConformsToKey as AnyHashable] {
case let array as [String]:
return array.map { UTI($0) }
case let string as String:
return [ UTI(string) ]
default:
return []
}
}
public var iconFile: String? {
return raw[kUTTypeIconFileKey as AnyHashable] as? String
}
public var referenceUrl: URL? {
if let reference = raw[kUTTypeReferenceURLKey as AnyHashable] as? String {
return URL(string: reference)
}
return nil
}
public var version: String? {
return raw[kUTTypeIconFileKey as AnyHashable] as? String
}
init(declaration: [AnyHashable: Any]) {
self.raw = declaration
}
public var description: String {
return raw.description
}
public var debugDescription: String {
return raw.debugDescription
}
}
public var declaration: Declaration {
return Declaration(declaration: UTTypeCopyDeclaration(self.utiString as CFString)?.takeRetainedValue() as! [AnyHashable: Any]? ?? [:])
}
public var declaringBundle: Bundle? {
if let url = UTTypeCopyDeclaringBundleURL(utiString as CFString)?.takeRetainedValue() {
return Bundle(url: url as URL)
}
return nil
}
public var iconFileUrl: URL? {
if let iconFile = declaration.iconFile {
return self.declaringBundle?.url(forResource: iconFile, withExtension: nil) ??
self.declaringBundle?.url(forResource: iconFile, withExtension: "icns")
}
return nil
}
// MARK: - Printable, DebugPrintable
public var description: String {
return UTTypeCopyDescription(utiString as CFString)?.takeRetainedValue() as String? ?? utiString
}
public var debugDescription: String {
return utiString
}
}
public func ==(lhs: UTI, rhs: UTI) -> Bool {
return UTTypeEqual(lhs.utiString as CFString, rhs.utiString as CFString)
}
public func ~=(pattern: UTI, value: UTI) -> Bool {
return UTTypeConformsTo(value.utiString as CFString, pattern.utiString as CFString)
}
// MARK: - Deprecated
public extension UTI {
@available(*, unavailable, renamed: "utiString")
var UTIString: String {
return utiString
}
@available(*, unavailable, renamed: "init(filenameExtension:conformingTo:)")
init?(filenameExtension: String, conformingToUTI: UTI? = nil) {
self.init(filenameExtension: filenameExtension, conformingTo: conformingToUTI)
}
@available(*, unavailable, renamed: "init(mimeType:conformingTo:)")
init?(MIMEType: String, conformingToUTI: UTI? = nil) {
self.init(mimeType: MIMEType, conformingTo: conformingToUTI)
}
@available(*, unavailable, renamed: "UTIs(fromFilenameExtension:conformingTo:)")
static func UTIsFromFilenameExtension(_ filenameExtension: String, conformingToUTI: UTI? = nil) -> [UTI] {
return UTIs(fromFilenameExtension: filenameExtension, conformingTo: conformingToUTI)
}
@available(*, unavailable, renamed: "UTIs(fromMimeType:conformingTo:)")
static func UTIsFromMIMEType(_ MIMEType: String, conformingToUTI: UTI? = nil) -> [UTI] {
return UTIs(fromMimeType: MIMEType, conformingTo: conformingToUTI)
}
#if os(macOS)
@available(*, unavailable, renamed: "init(pasteBoardType:conformingTo:)")
public init?(pasteBoardType: String, conformingToUTI: UTI? = nil) {
self.init(pasteBoardType: pasteBoardType, conformingTo: conformingToUTI)
}
@available(*, unavailable, renamed: "init(OSType:conformingTo:)")
public init?(OSType: String, conformingToUTI: UTI? = nil) {
self.init(OSType: OSType, conformingTo: conformingToUTI)
}
@available(*, unavailable, renamed: "UTIs(fromPasteBoardType:conformingTo:)")
public static func UTIsFromPasteBoardType(pasteBoardType: String, conformingToUTI: UTI? = nil) -> [UTI] {
return UTIs(fromPasteBoardType: pasteBoardType, conformingTo: conformingToUTI)
}
@available(*, unavailable, renamed: "UTIs(fromOSType:conformingTo:)")
public static func UTIsFromOSType(OSType: String, conformingToUTI: UTI? = nil) -> [UTI] {
return UTIs(fromOTType: OSType, conformingTo: conformingToUTI)
}
#endif
@available(*, unavailable, renamed: "mimeType")
var MIMEType: String? {
return mimeType
}
@available(*, unavailable, renamed: "mimeTypes")
var MIMETypes: [String] {
return mimeTypes
}
@available(*, unavailable, renamed: "iconFileUrl")
var iconFileURL: URL? {
return iconFileUrl
}
}
public extension UTI.Declaration {
@available(*, unavailable, renamed: "referenceUrl")
var referenceURL: URL? {
return referenceUrl
}
}