68 lines
1.7 KiB
Swift
68 lines
1.7 KiB
Swift
//
|
|
// Array.swift
|
|
// Adwaita
|
|
//
|
|
// Created by david-swift on 06.08.23.
|
|
//
|
|
|
|
import GTUI
|
|
|
|
extension Array where Element == View {
|
|
|
|
/// Get a widget from a collection of views.
|
|
/// - Returns: A widget.
|
|
public func widget() -> Widget {
|
|
if count == 1, let widget = self[safe: 0]?.widget() {
|
|
return widget
|
|
} else {
|
|
return VStack { self }
|
|
}
|
|
}
|
|
|
|
/// Update a collection of views with a collection of view storages.
|
|
/// - Parameters:
|
|
/// - storage: The collection of view storages.
|
|
public func update(_ storage: [ViewStorage]) {
|
|
for (index, element) in enumerated() {
|
|
if let storage = storage[safe: index] {
|
|
element.widget().updateStorage(storage)
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
extension Array {
|
|
|
|
/// Accesses the element at the specified position safely.
|
|
/// - Parameters:
|
|
/// - index: The position of the element to access.
|
|
///
|
|
/// Access and set elements the safe way:
|
|
/// ```swift
|
|
/// var array = ["Hello", "World"]
|
|
/// print(array[safe: 2] ?? "Out of range")
|
|
/// ```
|
|
public subscript(safe index: Int?) -> Element? {
|
|
get {
|
|
if let index, checkIndex(index) {
|
|
return self[index]
|
|
}
|
|
return nil
|
|
}
|
|
set {
|
|
if let index, let value = newValue, checkIndex(index) {
|
|
self[index] = value
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Check if a given index is valid for the array.
|
|
/// - Parameter index: The index to test.
|
|
/// - Returns: Return whether the index is valid or not.
|
|
private func checkIndex(_ index: Int) -> Bool {
|
|
index < count && index >= 0
|
|
}
|
|
|
|
}
|