79 lines
2.2 KiB
Swift
79 lines
2.2 KiB
Swift
//
|
|
// Button.swift
|
|
// TermKitBackend
|
|
//
|
|
// Created by david-swift on 01.07.2024.
|
|
//
|
|
|
|
import TermKit
|
|
|
|
/// A simple button widget.
|
|
public struct Button: TermKitWidget, ButtonContext.Widget, MenuContext.Widget {
|
|
|
|
/// The button's label.
|
|
var label: String
|
|
/// The action.
|
|
var action: () -> Void
|
|
|
|
/// The identifier for the action closure.
|
|
let actionID = "action"
|
|
|
|
/// Initialize a button.
|
|
/// - Parameters:
|
|
/// - The button's label.
|
|
/// - The action.
|
|
public init(_ label: String, action: @escaping () -> Void) {
|
|
self.label = label
|
|
self.action = action
|
|
}
|
|
|
|
/// The view storage.
|
|
/// - Parameters:
|
|
/// - modifiers: Modify views before being updated.
|
|
/// - type: The type of the app storage.
|
|
/// - Returns: The view storage.
|
|
public func container<Data>(
|
|
modifiers: [(any AnyView) -> any AnyView],
|
|
type: Data.Type
|
|
) -> ViewStorage where Data: ViewRenderData {
|
|
if type == MenuContext.self {
|
|
let storage = ViewStorage(nil)
|
|
let menuItem = MenuItem(title: label) {
|
|
(storage.fields[actionID] as? () -> Void)?()
|
|
}
|
|
storage.pointer = menuItem
|
|
storage.fields[actionID] = action
|
|
return storage
|
|
} else if type == ButtonContext.self {
|
|
return ViewStorage(self)
|
|
}
|
|
let button = TermKit.Button(label, clicked: action)
|
|
return .init(button)
|
|
}
|
|
|
|
/// Update the stored content.
|
|
/// - Parameters:
|
|
/// - storage: The storage to update.
|
|
/// - modifiers: Modify views before being updated
|
|
/// - updateProperties: Whether to update the view's properties.
|
|
/// - type: The type of the app storage.
|
|
public func update<Data>(
|
|
_ storage: ViewStorage,
|
|
modifiers: [(any AnyView) -> any AnyView],
|
|
updateProperties: Bool,
|
|
type: Data.Type
|
|
) where Data: ViewRenderData {
|
|
if type == MenuContext.self {
|
|
storage.fields[actionID] = action
|
|
}
|
|
guard let storage = storage.pointer as? TermKit.Button else {
|
|
return
|
|
}
|
|
storage.clicked = { _ in action() }
|
|
if updateProperties {
|
|
storage.text = label
|
|
}
|
|
}
|
|
|
|
}
|