public WebViewRenderer(IServiceProvider serviceProvider, ILoggerFactory loggerFactory, XRF.WebView webView) : base(serviceProvider, loggerFactory)
{
WebView = webView;
jsRuntime = new WebViewJsRuntime(webView.P);
DOMBuilder = new DOMBuilder(serviceProvider.GetService <IWebViewPathResolver>());
WebView.P.Navigating += (s, e) =>
{
if (e.NavigationEvent == WebNavigationEvent.NewPage && e.Url == "file:///xamarinrazor/")
{
//renderer.LoadHtml(dom, "file:///xamarinrazor");
UpdateDOM(true);
e.Cancel = true;
}
else if (e.Url.Contains("__event__"))
{
var uri = new Uri(e.Url);
var query = uri.Query;
var collection = HttpUtility.ParseQueryString(query);
var eventId = int.Parse(collection["id"]);
var eventParam = HttpUtility.UrlDecode(collection["v"]);
DOMBuilder.DispatchEvent(eventId, eventParam);
e.Cancel = true;
}
};
WebView.P.Navigated += (s, e) =>
{
UpdateDOM();
};
}
public async Task UpdateDOM(bool forceFirstUpdate = false)
{
string json;
if (firstUpdate || forceFirstUpdate)
{
json = JsonConvert.SerializeObject(new[] { DOMBuilder.DOM }, new JsonSerializerSettings()
{
ContractResolver = new DefaultContractResolver
{
NamingStrategy = new CamelCaseNamingStrategy()
}
});
//json = JsonSerializer.Serialize<object[]>(new[] { DOMBuilder.DOM }, new JsonSerializerOptions() { PropertyNamingPolicy = JsonNamingPolicy.CamelCase, IgnoreReadOnlyProperties = false });
//json = new[] { DOMBuilder.DOM }.Serialize();
DOMBuilder.GetPatches(); //clear pathches
}
else
{
var patches = DOMBuilder.GetPatches();
//json = JsonSerializer.Serialize<object[]>(patches.Select(p=>(object)p).ToArray(), new JsonSerializerOptions() { PropertyNamingPolicy = JsonNamingPolicy.CamelCase, IgnoreReadOnlyProperties = false });
json = JsonConvert.SerializeObject(patches, new JsonSerializerSettings()
{
ContractResolver = new DefaultContractResolver
{
NamingStrategy = new CamelCaseNamingStrategy()
}
});
//json = patches.Serialize();
}
//Task.Run(async () =>
//{
//if (firstUpdate)
//{
// await Task.Delay(30000);
//}
var script = $"window.webView.update({json}, {forceFirstUpdate.ToString().ToLower()})";
await Device.InvokeOnMainThreadAsync(() => WebView.P.EvaluateJavaScriptAsync(script));
firstUpdate = false;
//});
}
public async Task <string> AddComponent(Type componentType, Action <object> parameterSetter)
{
ComponentRenderer adapter = null;
await Dispatcher.InvokeAsync(async() =>
{
var component = InstantiateComponent(componentType);
var componentId = AssignRootComponentId(component);
parameterSetter?.Invoke(component);
adapter = new ComponentRenderer(component, this);
Renderers[componentId] = adapter;
try
{
await RenderRootComponentAsync(componentId).ConfigureAwait(false);
}catch (Exception e)
{
}
}).ConfigureAwait(false);
return(DOMBuilder.ToString());
}
