83 lines
2.7 KiB
Swift
83 lines
2.7 KiB
Swift
//
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// WindowView.swift
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// Adwaita
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//
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// Created by david-swift on 06.08.24.
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//
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/// A storage type is a view storage or a scene storage.
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public protocol Storage: AnyObject {
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/// The pointer.
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var opaquePointer: OpaquePointer? { get }
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/// Additional fields.
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var fields: [String: Any] { get set }
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}
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extension Storage {
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/// Connect a handler to the observer of a property.
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/// - Parameters:
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/// - name: The property's name.
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/// - id: The handlers id to separate form others connecting to the signal.
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/// - pointer: A custom pointer instead of the stored one.
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/// - handler: The signal's handler.
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public func notify(
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name: String,
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id: String = "",
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pointer: OpaquePointer? = nil,
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handler: @escaping () -> Void
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) {
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let name = "notify::" + name
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connectSignal(name: name, id: id, argCount: 1, pointer: pointer, handler: handler)
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}
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/// Connect a handler to a signal.
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/// - Parameters:
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/// - name: The signal's name.
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/// - id: The handlers id to separate form others connecting to the signal.
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/// - connectFlags: The GConnectFlags.
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/// - argCount: The number of additional arguments (without the first and the last one).
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/// - pointer: A custom pointer instead of the stored one.
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/// - handler: The signal's handler.
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public func connectSignal(
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name: String,
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id: String = "",
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argCount: Int = 0,
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pointer: OpaquePointer? = nil,
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handler: @escaping () -> Void
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) {
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connectSignal(name: name, id: id, argCount: argCount, pointer: pointer) { _ in
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handler()
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}
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}
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/// Connect a handler to a signal.
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/// - Parameters:
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/// - name: The signal's name.
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/// - id: The handlers id to separate form others connecting to the signal.
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/// - argCount: The number of additional arguments (without the first and the last one).
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/// - pointer: A custom pointer instead of the stored one.
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/// - handler: The signal's handler.
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public func connectSignal(
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name: String,
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id: String = "",
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argCount: Int = 0,
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pointer: OpaquePointer? = nil,
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handler: @escaping ([Any]) -> Void
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) {
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if let data = fields[name + id] as? SignalData {
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data.closure = handler
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} else {
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let data = SignalData(closure: handler) { [self] in fields[name + id] = nil }
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fields[name + id] = data
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data.connect(pointer: (pointer ?? opaquePointer)?.cast(), signal: name, argCount: argCount)
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}
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}
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}
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extension ViewStorage: Storage { }
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extension SceneStorage: Storage { }
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