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Index

@page "/"

<h1>Flash Animation</h1>

<table class="table table-striped">
    <thead><tr><th>Name</th><th>Value</th></tr></thead>
    <tbody>
        @foreach(var s in sensors)
        {
            <tr class="@s.Css">
                <td>@s.Name</td><td>@s.Value</td>
            </tr>
        }
    </tbody>
</table>
<hr/>
@* fake an event updating a sensor *@
<button @onclick="FakeEvent">Fake Event</button>
<p>@message</p>
@code
{
    const int count  = 5;
    Random rand = new Random();
    string message;

    List<Sensor> sensors = new List<Sensor>();
    
    // create a list of sensors at start
    protected override void OnInitialized()
    {
       for(var i=0; i<count;i++) 
       {
           sensors.Add(new Sensor(i));
       }     
       message = $"Created {count} sensors";
    }

    void FakeEvent()
    {
        // pick a random sensor
        int index = rand.Next(0, count);
        // update this sensor
        sensors[index].Update();
        message = $"Sensor {index} updated";
    }


    public class Sensor 
    {
        public Sensor(int number){
            Name = $"Sensor {number}";
            Value =1;
        }

        public string Name { get;set;}

        public int Value {get;set;}

        public string Css { get;set; }

        public void Update() 
        {
            Value +=1; // sensor value changes
            // swap the CSS round, this triggers the animation
            // the two classes could be the same colour but I used a different
            // colour to make it clearer
            Css = Css == "new-item1" ? "new-item2" : "new-item1";
        }


    }
}

namespace BlazorFiddleProject
{
    using Microsoft.AspNetCore.Components.Builder;
    using Microsoft.Extensions.DependencyInjection;


    public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
        }

        public void Configure(IComponentsApplicationBuilder app)
        {
            app.AddComponent<App>("app");
        }
    }
}

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <meta name="viewport" content="width=device-width">
    <title>BlazorFiddleProject</title>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
	
	<script src="_content/MatBlazor/dist/matBlazor.js"></script>

    <style>
        app { }

        /* flash v1 */
        .new-item1 {
            -webkit-animation: flash 3s;  /* Safari 4.0 - 8.0 */
            -webkit-animation-iteration-count: 1; /* Safari 4.0 - 8.0 */
        }

        /* flash v2 */
        .new-item2 {
            -webkit-animation: flash 3s;  /* Safari 4.0 - 8.0 */
            -webkit-animation-iteration-count: 1; /* Safari 4.0 - 8.0 */
        }

        @-webkit-keyframes flash {
            0% { background-color: white; color: red }
            5% { background-color: yellow; }
            90% { background-color: white; }
            100% { background-color: white; color: black; }
        }

        @keyframes flash {
            0% { background-color: white; color: red }
            5% { background-color: yellow; }
            90% { background-color: white; }
            100% { background-color: white; color: black; }
        }
    </style>

    <script type="text/javascript">
    </script>
</head>
<body>
<app>Loading...</app>

<script src="_framework/blazor.webassembly.js"></script>
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
</body>
</html>

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