macbackend/Sources/Core/Menu/MenuCollection.swift
david-swift 3d2ef52cc8
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2024-12-04 21:17:21 +01:00

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Swift

//
// MenuCollection.swift
// MacBackend
//
// Created by david-swift on 02.08.2024.
//
import AppKit
import Foundation
/// A collection of menus.
public struct MenuCollection: MenuWidget, Wrapper {
/// The content of the collection.
var content: Body
/// Initialize a menu.
/// - Parameter content: The content of the collection.
public init(@ViewBuilder content: @escaping () -> Body) {
self.content = content()
}
/// The view storage.
/// - Parameters:
/// - data: The widget data.
/// - type: The type of the views.
/// - Returns: The view storage.
public func container<Data>(
data: WidgetData,
type: Data.Type
) -> ViewStorage where Data: ViewRenderData {
let storages = content.storages(data: data, type: type)
return .init(nil, content: [.mainContent: storages])
}
/// Update the stored content.
/// - Parameters:
/// - storage: The storage to update.
/// - data: The widget data.
/// - updateProperties: Whether to update the properties.
/// - type: The type of the views.
public func update<Data>(
_ storage: ViewStorage,
data: WidgetData,
updateProperties: Bool,
type: Data.Type
) where Data: ViewRenderData {
guard let storages = storage.content[.mainContent] else {
return
}
content.update(storages, data: data, updateProperties: updateProperties, type: type)
}
/// Render the collection as a menu.
/// - Parameters:
/// - data: The widget data.
/// - menu: The menu.
/// - Returns: The view storage with the GMenu as the pointer.
public func getMenu(data: WidgetData, menu: NSMenu?) -> ViewStorage {
let item = NSMenuItem()
let menu = menu ?? .init()
let storage = container(data: data.noModifiers, type: MenuContext.self)
initializeMenu(menu: menu, storage: storage)
storage.pointer = item
item.menu = menu
return storage
}
/// Initialize a menu.
/// - Parameters:
/// - menu: The pointer to the GMenu.
/// - storage: The storage for the menu's content.
/// - app: The app object.
/// - window: The window object.
func initializeMenu(menu: NSMenu, storage: ViewStorage) {
if let item = storage.pointer as? NSMenuItem {
menu.addItem(item)
} else {
for element in storage.content[.mainContent] ?? [] {
initializeMenu(menu: menu, storage: element)
}
}
}
}