passepartout-apple/Passepartout-iOS/Global/Macros.swift

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//
// Macros.swift
// Passepartout-iOS
//
// Created by Davide De Rosa on 6/16/18.
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// Copyright (c) 2019 Davide De Rosa. All rights reserved.
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//
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// https://github.com/passepartoutvpn
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//
// This file is part of Passepartout.
//
// Passepartout is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Passepartout is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Passepartout. If not, see <http://www.gnu.org/licenses/>.
//
import UIKit
class Macros {
static func alert(_ title: String?, _ message: String?) -> UIAlertController {
return UIAlertController(title: title, message: message, preferredStyle: .alert)
}
static func actionSheet(_ title: String?, _ message: String?) -> UIAlertController {
return UIAlertController(title: title, message: message, preferredStyle: .actionSheet)
}
}
extension UIAlertController {
@discardableResult func addDefaultAction(_ title: String, handler: @escaping () -> Void) -> UIAlertAction {
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let action = UIAlertAction(title: title, style: .default) { (action) in
handler()
}
addAction(action)
preferredAction = action
return action
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}
@discardableResult func addCancelAction(_ title: String, handler: (() -> Void)? = nil) -> UIAlertAction {
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let action = UIAlertAction(title: title, style: .cancel) { (action) in
handler?()
}
addAction(action)
if actions.count == 1 {
preferredAction = action
}
return action
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}
@discardableResult func addAction(_ title: String, handler: @escaping () -> Void) -> UIAlertAction {
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let action = UIAlertAction(title: title, style: .default) { (action) in
handler()
}
addAction(action)
return action
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}
@discardableResult func addDestructiveAction(_ title: String, handler: @escaping () -> Void) -> UIAlertAction {
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let action = UIAlertAction(title: title, style: .destructive) { (action) in
handler()
}
addAction(action)
preferredAction = action
return action
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}
}
extension UIView {
static func get<T: UIView>() -> T {
let name = String(describing: T.self)
let nib = UINib(nibName: name, bundle: nil)
let objects = nib.instantiate(withOwner: nil)
for o in objects {
if let view = o as? T {
return view
}
}
fatalError()
}
}
extension UITableView {
func scrollToRowAsync(at indexPath: IndexPath) {
DispatchQueue.main.async { [weak self] in
self?.scrollToRow(at: indexPath, at: .middle, animated: false)
}
}
func selectRowAsync(at indexPath: IndexPath) {
DispatchQueue.main.async { [weak self] in
self?.selectRow(at: indexPath, animated: false, scrollPosition: .middle)
}
}
}
extension UIColor {
convenience init(rgb: UInt32, alpha: CGFloat) {
let r = CGFloat((rgb & 0xff0000) >> 16) / 255.0
let g = CGFloat((rgb & 0xff00) >> 8) / 255.0
let b = CGFloat(rgb & 0xff) / 255.0
self.init(red: r, green: g, blue: b, alpha: alpha)
}
}