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Added overlay for better user experience #2

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Added overlay for better user experience #2

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14 changes: 13 additions & 1 deletion ClientSideBlazorWithPrerendering.Client/Shared/MainLayout.razor
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
@inherits LayoutComponentBase

@inject IJSRuntime jsRuntime
@inject IComponentContext context
<div class="sidebar">
<NavMenu />
</div>
Expand All @@ -13,3 +14,14 @@
@Body
</div>
</div>

@code {

protected override async Task OnAfterRenderAsync()
{
if (context.IsConnected)
{
await jsRuntime.InvokeAsync<object>("loadingOverlay.hide");
}
}
}
38 changes: 38 additions & 0 deletions ClientSideBlazorWithPrerendering.Client/wwwroot/css/loading.css
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Original file line number Diff line number Diff line change
@@ -0,0 +1,38 @@
.loading {
width: 100%;
height: 100%;
position: fixed;
top: 0;
right: 0;
bottom: 0;
left: 0;
background-color: rgba(0,0,0,.5);
}

.loading-wheel {
width: 20px;
height: 20px;
margin-top: -40px;
margin-left: -40px;
position: absolute;
top: 50%;
left: 50%;
border-width: 30px;
border-radius: 50%;
-webkit-animation: spin 1s linear infinite;
}

.style-2 .loading-wheel {
border-style: double;
border-color: #ccc transparent;
}

@-webkit-keyframes spin {
0% {
-webkit-transform: rotate(0);
}

100% {
-webkit-transform: rotate(-360deg);
}
}
22 changes: 22 additions & 0 deletions ClientSideBlazorWithPrerendering.Client/wwwroot/loadingOverlay.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
var loadingOverlay = (function () {
var loadingOverlay = {};

loadingOverlay.show = function () {
var loadingDiv = document.createElement("div");
loadingDiv.className = "loading style-2";
loadingDiv.id = "loading-container";
var wheelDiv = document.createElement("div");
wheelDiv.className = "loading-wheel";
loadingDiv.appendChild(wheelDiv);
document.body.appendChild(loadingDiv);
}

loadingOverlay.hide = function () {
var loadingContainer = document.getElementById("loading-container");
if (loadingContainer) {
loadingContainer.remove();
}
}

return loadingOverlay;
})();
9 changes: 6 additions & 3 deletions ClientSideBlazorWithPrerendering.Server/Pages/_Host.cshtml
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Original file line number Diff line number Diff line change
Expand Up @@ -21,10 +21,13 @@
integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" />
</environment>
<link href="css/site.css" rel="stylesheet" />
<link href="css/loading.css" rel="stylesheet" />
</head>
<body>
<app>@(await Html.RenderStaticComponentAsync<App>())</app>

<script src="_framework/blazor.webassembly.js"></script>
<app>
@(await Html.RenderStaticComponentAsync<App>())</App>
<script src="loadingOverlay.js" ></script>
<script>loadingOverlay.show();</script>
<script src="_framework/blazor.webassembly.js"></script>
</body>
</html>