Brendan Szymanski
da91b02a6a
Adds SwiftUI-style @Environment property wrapper with key-path and object-injection flavors, an @Observable bridge that flushes on a GLib idle source at highIdle priority (ahead of GTK redraw), targeted widget updates driven by Observation tracking, and two-way observable bindings that ride the existing bindProperty path. New library files (4): - State/ObservationBridge.swift -- coalesced flush bridge - State/EnvironmentValues.swift -- scope-local key-to-box map - State/Environment.swift -- @Environment wrapper, DynamicProperty - Core/View+Environment.swift -- .environment(...) modifiers Modified library files (8): - DependencyTracker: import Observation, observing: param, didArmObservation - EitherView/ForEach: opt container trackers out of Observation - NodeRegistry: isEmpty for retention check - PropertyBinding: hasDependencies || didArmObservation gate - Binding: readOnly init, observable key-path init - MountContext: environment field, withEnvironment, inheritance - AnyView: _resolveDynamicProperties hook before user body eval New tests (21 across 3 files): - EnvironmentTests (7): scoping, nesting, projections, ForEach, lazy branches, reuse - ObservableTests (11): acceptance case, write-back, coalescing, teardown, binding echo, re-arm de-dupe, retention, flush ordering - StateTests (+3): Observation arming unit tests Example: EnvironmentDemoPage demonstrates the feature end to end.
107 lines
3.2 KiB
Swift
107 lines
3.2 KiB
Swift
import Portico
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@main
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struct ExampleApp: App {
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var applicationId: String? { "dev.bscubed.PorticoExample" }
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@State private var count = 0
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@State private var name = "Portico"
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@State private var darkMode = false
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@State private var volume = 75.0
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@State private var currentPage: UInt32 = 0
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@State private var uptime = 0
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var body: some Scene {
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ApplicationWindow { _ in
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VStack {
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HeaderBar()
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Carousel {
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introPage
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counterPage
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settingsPage
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AsyncDemoPage()
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EnvironmentDemoPage()
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}
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.onPageChanged { page in currentPage = page }
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Label("Uptime: \(uptime)s, Page \(currentPage + 1) of 5")
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.dimmed()
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.halign(.center)
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.margin(8)
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.task(every: .seconds(1)) { uptime += 1 }
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}
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}
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.title("Portico Demo")
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.defaultSize(width: 1080, height: 720)
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}
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var introPage: some View {
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Clamp {
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StatusPage {
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VStack(spacing: 6) {
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Label("Declarative GTK apps in Swift")
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.title3()
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.marginTop(16)
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Label("A familiar SwiftUI-like API, zero GObject boilerplate")
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.marginBottom(16)
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}
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.card()
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}
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.title("Welcome to Portico")
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.description("Swipe to explore")
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.iconName("face-smile-symbolic")
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}
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.hexpand(true)
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.vexpand(true)
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}
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var counterPage: some View {
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Clamp {
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StatusPage {
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HStack(spacing: 12) {
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Button("-") { count -= 1 }
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.circular()
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Label("Count: \(count)")
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.title1()
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Button("+") { count += 1 }
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.circular()
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}
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.halign(.center)
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}
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.title("Reactive Counter")
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.description("@State + Binding drive targeted widget updates")
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.iconName("applications-engineering-symbolic")
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}
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.hexpand(true)
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.vexpand(true)
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}
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var settingsPage: some View {
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Clamp {
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StatusPage {
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VStack(spacing: 12) {
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Label("Name: \(name), Dark mode: \(darkMode), Volume: \(volume)")
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.title2()
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ListBox {
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EntryRow()
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.title("Your Name")
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.text($name)
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SwitchRow()
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.title("Dark Mode")
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.active($darkMode)
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SpinRow(min: 0, max: 100, step: 5)
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.title("Volume")
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.value($volume)
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}
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.boxedList()
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}
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}
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.title("Quick Settings")
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.description("Live GObject property bindings")
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.iconName("application-x-firmware-symbolic")
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}
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.hexpand(true)
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.vexpand(true)
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}
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}
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