98 lines
4.1 KiB
C#
98 lines
4.1 KiB
C#
// --------------------------------------------------------------------------------------------------------------------
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// <copyright file="ButtonExt.cs" company="VRMADA">
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// Copyright (c) VRMADA, All rights reserved.
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// </copyright>
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// --------------------------------------------------------------------------------------------------------------------
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using UltimateXR.Extensions.System.Threading;
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using UnityEngine.UI;
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namespace UltimateXR.Extensions.Unity.UI
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{
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/// <summary>
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/// <see cref="Button" /> extensions.
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/// </summary>
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public static class ButtonExt
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{
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#region Public Methods
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/// <summary>
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/// Asynchronously waits until a <see cref="Button" /> is clicked.
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/// </summary>
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/// <param name="self">Button to wait for</param>
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/// <param name="ct">Optional cancellation token, to cancel the task</param>
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/// <returns>Awaitable task that will finish once the button was clicked or the <see cref="Task" /> was canceled</returns>
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public static async Task WaitForClickAsync(this Button self, CancellationToken ct = default)
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{
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bool isClicked = false;
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void ButtonClicked()
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{
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isClicked = true;
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}
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self.onClick.AddListener(ButtonClicked);
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await TaskExt.WaitUntil(() => isClicked, ct);
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self.onClick.RemoveListener(ButtonClicked);
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}
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/// <summary>
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/// Asynchronously waits until a <see cref="Button" /> is clicked. Returns the <see cref="Button" /> that was clicked.
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/// </summary>
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/// <param name="self">Button to wait for</param>
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/// <param name="ct">Optional cancellation token, to cancel the task</param>
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/// <returns>
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/// Awaitable task that will finish once the button was clicked or the <see cref="Task" /> was canceled, and that
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/// returns the <see cref="Button" /> that was clicked
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/// </returns>
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public static async Task<Button> ReadAsync(this Button self, CancellationToken ct)
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{
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await self.WaitForClickAsync(ct);
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return ct.IsCancellationRequested ? null : self;
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}
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/// <summary>
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/// Asynchronously waits until a <see cref="Button" /> in a set is clicked. Returns the <see cref="Button" /> that was
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/// clicked.
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/// </summary>
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/// <param name="ct">Cancellation token, to cancel the task</param>
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/// <param name="buttons">Buttons to wait for</param>
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/// <returns>
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/// Awaitable task that will finish once a button was clicked or the <see cref="Task" /> was canceled, and that
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/// returns the <see cref="Button" /> that was clicked
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/// </returns>
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public static Task<Button> ReadAsync(CancellationToken ct, params Button[] buttons)
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{
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return buttons.ReadAsync(ct);
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}
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/// <summary>
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/// Asynchronously waits until a <see cref="Button" /> in a set is clicked. Returns the <see cref="Button" /> that was
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/// clicked.
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/// </summary>
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/// <param name="buttons">Buttons to wait for</param>
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/// <param name="ct">Optional cancellation token, to cancel the task</param>
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/// <returns>
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/// Awaitable task that will finish once a button was clicked or the <see cref="Task" /> was canceled, and that
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/// returns the <see cref="Button" /> that was clicked
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/// </returns>
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public static async Task<Button> ReadAsync(this Button[] buttons, CancellationToken ct)
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{
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using CancellationTokenSource cts = CancellationTokenSource.CreateLinkedTokenSource(ct);
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IEnumerable<Task<Button>> tasks = buttons.Select(b => b.ReadAsync(ct));
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Task<Button> finishedTask = await Task.WhenAny(tasks);
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if (!finishedTask.IsCanceled)
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{
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cts.Cancel();
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}
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return await finishedTask;
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}
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#endregion
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}
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} |