oqtane.framework/Oqtane.Client/UI/ThemeBuilder.razor

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@namespace Oqtane.UI
@inject IJSRuntime JsRuntime
@inject NavigationManager NavigationManager
@DynamicComponent
@code {
[CascadingParameter] PageState PageState { get; set; }
RenderFragment DynamicComponent { get; set; }
protected override void OnParametersSet()
{
// handle page redirection
if (!string.IsNullOrEmpty(PageState.Page.Url))
{
NavigationManager.NavigateTo(PageState.Page.Url);
return;
}
DynamicComponent = builder =>
{
var themeType = Type.GetType(PageState.Page.ThemeType);
builder.OpenComponent(0, themeType);
builder.CloseComponent();
};
}
protected override async Task OnAfterRenderAsync(bool firstRender)
{
var interop = new Interop(JsRuntime);
// manage stylesheets for this page
string batch = DateTime.Now.ToString("yyyyMMddHHmmssfff");
var links = new List<object>();
foreach (Resource resource in PageState.Page.Resources.Where(item => item.ResourceType == ResourceType.Stylesheet && item.Declaration != ResourceDeclaration.Global))
{
links.Add(new { id = "app-stylesheet-" + batch + "-" + (links.Count + 1).ToString("00"), rel = "stylesheet", href = resource.Url, type = "text/css", integrity = resource.Integrity ?? "", crossorigin = resource.CrossOrigin ?? "", key = "" });
}
if (links.Any())
{
await interop.IncludeLinks(links.ToArray());
}
await interop.RemoveElementsById("app-stylesheet", "", "app-stylesheet-" + batch + "-00");
// set page title
if (!string.IsNullOrEmpty(PageState.Page.Title))
{
await interop.UpdateTitle(PageState.Page.Title);
}
else
{
await interop.UpdateTitle(PageState.Site.Name + " - " + PageState.Page.Name);
}
}
}