Add progress task list support

examples/Info/Program.cs

@@ -1,4 +1,3 @@
-using System;
 using Spectre.Console;
 
 namespace InfoExample
@@ -13,7 +12,7 @@ namespace InfoExample
                 .AddRow("[b]Color system[/]", $"{AnsiConsole.Capabilities.ColorSystem}")
                 .AddRow("[b]Supports ansi?[/]", $"{YesNo(AnsiConsole.Capabilities.SupportsAnsi)}")
                 .AddRow("[b]Legacy console?[/]", $"{YesNo(AnsiConsole.Capabilities.LegacyConsole)}")
-                .AddRow("[b]Interactive?[/]", $"{YesNo(Environment.UserInteractive)}")
+                .AddRow("[b]Interactive?[/]", $"{YesNo(AnsiConsole.Capabilities.SupportsInteraction)}")
                 .AddRow("[b]Buffer width[/]", $"{AnsiConsole.Console.Width}")
                 .AddRow("[b]Buffer height[/]", $"{AnsiConsole.Console.Height}");
 

examples/Progress/DescriptionGenerator.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+
+namespace ProgressExample
+{
+    public static class DescriptionGenerator
+    {
+        private static readonly string[] _verbs = new[] { "Downloading", "Rerouting", "Retriculating", "Collapsing", "Folding", "Solving", "Colliding", "Measuring" };
+        private static readonly string[] _nouns = new[] { "internet", "splines", "space", "capacitators", "quarks", "algorithms", "data structures", "spacetime" };
+
+        private static readonly Random _random;
+        private static readonly HashSet<string> _used;
+
+        static DescriptionGenerator()
+        {
+            _random = new Random(DateTime.Now.Millisecond);
+            _used = new HashSet<string>();
+        }
+
+        public static bool TryGenerate(out string name)
+        {
+            var iterations = 0;
+            while (iterations < 25)
+            {
+                name = Generate();
+                if (!_used.Contains(name))
+                {
+                    _used.Add(name);
+                    return true;
+                }
+
+                iterations++;
+            }
+
+            name = Generate();
+            return false;
+        }
+
+        public static string Generate()
+        {
+            return _verbs[_random.Next(0, _verbs.Length)]
+                + " " + _nouns[_random.Next(0, _nouns.Length)];
+        }
+    }
+}

examples/Progress/Program.cs

@@ -0,0 +1,75 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using Spectre.Console;
+
+namespace ProgressExample
+{
+    public static class Program
+    {
+        public static void Main()
+        {
+            AnsiConsole.MarkupLine("[yellow]Initializing warp drive[/]...");
+
+            // Show progress
+            AnsiConsole.Progress()
+                .AutoClear(false)
+                .Columns(new ProgressColumn[]
+                {
+                    new TaskDescriptionColumn(),    // Task description
+                    new ProgressBarColumn(),        // Progress bar
+                    new PercentageColumn(),         // Percentage
+                    new RemainingTimeColumn(),      // Remaining time
+                    new SpinnerColumn(),            // Spinner
+                })
+                .Start(ctx =>
+                {
+                    var random = new Random(DateTime.Now.Millisecond);
+                    var tasks = CreateTasks(ctx, random);
+
+                    while (!ctx.IsFinished)
+                    {
+                        // Increment progress
+                        foreach (var (task, increment) in tasks)
+                        {
+                            task.Increment(random.NextDouble() * increment);
+                        }
+
+                        // Write some random things to the terminal
+                        if (random.NextDouble() < 0.1)
+                        {
+                            WriteLogMessage();
+                        }
+
+                        // Simulate some delay
+                        Thread.Sleep(100);
+                    }
+                });
+
+            // Done
+            AnsiConsole.MarkupLine("[green]Done![/]");
+        }
+
+        private static List<(ProgressTask, int)> CreateTasks(ProgressContext progress, Random random)
+        {
+            var tasks = new List<(ProgressTask, int)>();
+            while (tasks.Count < 5)
+            {
+                if (DescriptionGenerator.TryGenerate(out var name))
+                {
+                    tasks.Add((progress.AddTask(name), random.Next(2, 10)));
+                }
+            }
+
+            return tasks;
+        }
+
+        private static void WriteLogMessage()
+        {
+            AnsiConsole.MarkupLine(
+                "[grey]LOG:[/] " +
+                DescriptionGenerator.Generate() +
+                "[grey]...[/]");
+        }
+    }
+}

examples/Progress/Progress.csproj

@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net5.0</TargetFramework>
+    <IsPackable>false</IsPackable>
+    <Title>Progress</Title>
+    <Description>Demonstrates how to show progress bars.</Description>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\src\Spectre.Console\Spectre.Console.csproj" />
+  </ItemGroup>
+
+</Project>

examples/Prompt/Program.cs

@@ -6,6 +6,13 @@ namespace Cursor
     {
         public static void Main(string[] args)
         {
+            // Check if we can accept key strokes
+            if (!AnsiConsole.Capabilities.SupportsInteraction)
+            {
+                AnsiConsole.MarkupLine("[red]Environment does not support interaction.[/]");
+                return;
+            }
+
             // Confirmation
             if (!AnsiConsole.Confirm("Run prompt example?"))
             {