meta/Tests/SampleBackends/Backend1.swift

82 lines
2.4 KiB
Swift

import Meta
public enum Backend1 {
public struct TestWidget1: BackendWidget {
public init() { }
public var debugTreeContent: [(String, body: Body)] {
[]
}
public var debugTreeParameters: [(String, value: CustomStringConvertible)] {
[]
}
public func container<WidgetType>(modifiers: [(AnyView) -> AnyView], type: WidgetType.Type) -> ViewStorage {
print("Init test widget 1")
let storage = ViewStorage(nil)
storage.fields["test"] = 0
return storage
}
public func update<WidgetType>(_ storage: ViewStorage, modifiers: [(AnyView) -> AnyView], updateProperties: Bool, type: WidgetType.Type) {
print("Update test widget 1 (#\(storage.fields["test"] ?? ""))")
storage.fields["test"] = (storage.fields["test"] as? Int ?? 0) + 1
}
}
public struct TestWidget3: BackendWidget {
public init() { }
public var debugTreeContent: [(String, body: Body)] {
[]
}
public var debugTreeParameters: [(String, value: CustomStringConvertible)] {
[]
}
public func container<WidgetType>(modifiers: [(AnyView) -> AnyView], type: WidgetType.Type) -> ViewStorage {
print("Init test widget 3")
let storage = ViewStorage(nil)
storage.fields["test"] = 0
return storage
}
public func update<WidgetType>(_ storage: ViewStorage, modifiers: [(AnyView) -> AnyView], updateProperties: Bool, type: WidgetType.Type) {
print("Update test widget 3 (#\(storage.fields["test"] ?? ""))")
storage.fields["test"] = (storage.fields["test"] as? Int ?? 0) + 1
}
}
public struct Button: BackendWidget {
public init(_ label: String, action: @escaping () -> Void) {
}
public var debugTreeContent: [(String, body: Body)] {
[]
}
public var debugTreeParameters: [(String, value: any CustomStringConvertible)] {
[]
}
public func container<WidgetType>(modifiers: [(any AnyView) -> any AnyView], type: WidgetType.Type) -> ViewStorage {
.init(nil)
}
public func update<WidgetType>(_ storage: ViewStorage, modifiers: [(any AnyView) -> any AnyView], updateProperties: Bool, type: WidgetType.Type) {
}
}
public protocol BackendWidget: Widget { }
}