123 lines
4.3 KiB
Swift
123 lines
4.3 KiB
Swift
//
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// Window.swift
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// Adwaita
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//
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// Created by david-swift on 14.09.23.
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//
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import Libadwaita
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/// A structure representing an application window type.
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///
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/// Note that multiple instances of a window can be opened at the same time.
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public struct Window: WindowScene {
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/// The window's identifier.
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public var id: String
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/// The window's content.
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var content: (GTUIApplicationWindow) -> Body
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/// Whether an instance of the window type should be opened when the app is starting up.
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public var `open`: Int
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/// The identifier of the window's parent.
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public var parentID: String?
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/// The keyboard shortcuts.
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var shortcuts: [String: (GTUIApplicationWindow) -> Void] = [:]
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/// The keyboard shortcuts on the app level.
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public var appShortcuts: [String: (GTUIApp) -> Void] = [:]
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/// Create a window type with a certain identifier and user interface.
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/// - Parameters:
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/// - id: The identifier.
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/// - open: The number of instances of the window type when the app is starting.
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/// - content: The window's content.
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public init(id: String, `open`: Int = 1, @ViewBuilder content: @escaping (GTUIApplicationWindow) -> Body) {
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self.content = content
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self.id = id
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self.open = open
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}
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/// Get the storage for the window.
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/// - Parameter app: The application.
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/// - Returns: The storage.
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public func createWindow(app: GTUIApp) -> WindowStorage {
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let window = createGTUIWindow(app: app)
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let storage = getViewStorage(window: window)
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let windowStorage = WindowStorage(id: id, window: window, view: storage)
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window.observeHide {
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windowStorage.destroy = true
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return false
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}
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windowStorage.parentID = parentID
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return windowStorage
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}
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/// Get the window.
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/// - Parameter app: The application.
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/// - Returns: The window.
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func createGTUIWindow(app: GTUIApp) -> GTUIApplicationWindow {
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let window = GTUIApplicationWindow(app: app)
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updateAppShortcuts(app: app)
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window.show()
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return window
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}
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/// Get the storage of the content view.
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/// - Parameter window: The window.
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/// - Returns: The storage of the content of the window.
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func getViewStorage(window: GTUIApplicationWindow) -> ViewStorage {
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let content = content(window)
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let storage = content.widget(modifiers: []).container(modifiers: [])
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window.setChild(storage.view)
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updateShortcuts(window: window)
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return storage
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}
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/// Update a window storage's content.
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/// - Parameter storage: The storage to update.
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public func update(_ storage: WindowStorage, app: GTUIApp) {
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if let window = storage.window as? GTUIApplicationWindow {
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let content = content(window)
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content.widget(modifiers: []).updateStorage(storage.view, modifiers: [])
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updateShortcuts(window: window)
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updateAppShortcuts(app: app)
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}
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}
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/// Add windows that overlay the last instance of this window if presented.
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/// - Parameter windows: The windows.
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/// - Returns: The new windows and this window.
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public func overlay(@SceneBuilder windows: () -> [WindowSceneGroup]) -> [WindowScene] {
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windows().windows().map { window in
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var newWindow = window
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newWindow.parentID = id
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return newWindow
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} + [self]
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}
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/// Add a keyboard shortcut.
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/// - Parameters:
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/// - shortcut: The keyboard shortcut.
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/// - action: The closure to execute when the keyboard shortcut is pressed.
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/// - Returns: The window.
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public func keyboardShortcut(_ shortcut: String, action: @escaping (GTUIApplicationWindow) -> Void) -> Self {
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var newSelf = self
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newSelf.shortcuts[shortcut] = action
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return newSelf
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}
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/// Update the keyboard shortcuts.
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/// - Parameter window: The application window.
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func updateShortcuts(window: GTUIApplicationWindow) {
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for shortcut in shortcuts {
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window.addKeyboardShortcut(shortcut.key, id: shortcut.key) { shortcut.value(window) }
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}
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}
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/// Add the shortcut "<Ctrl>w" which closes the window.
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/// - Returns: The window.
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public func closeShortcut() -> Self {
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keyboardShortcut("w".ctrl()) { $0.close() }
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}
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}
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