static HashSet2 <string> _jsScriptFileKeys = new HashSet2 <string>(); //todo: This is probably redundant with the _pendingJSFile and _loadedFiles in INTERNAL_InteropImplementation so remove this?
public static Task <object> LoadJavaScriptFile(ResourceFile resourceFile)
{
if (!_jsScriptFileKeys.Contains(resourceFile.Key))
{
// Get the assembly name of the calling method: //IMPORTANT: the call to the "GetCallingAssembly" method must be done in the method that is executed immediately after the one where the URI is defined! Be careful when moving the following line of code.
#if !BRIDGE
string callerAssemblyName = Interop.IsRunningInTheSimulator ? Assembly.GetCallingAssembly().GetName().Name : INTERNAL_UriHelper.GetJavaScriptCallingAssembly();
#else
string callerAssemblyName = INTERNAL_UriHelper.GetJavaScriptCallingAssembly();
#endif
var t = new TaskCompletionSource <object>();
INTERNAL_InteropImplementation.LoadJavaScriptFile(resourceFile.Url, callerAssemblyName,
() =>
{
t.SetResult(null);
_jsScriptFileKeys.Add(resourceFile.Key); //we only set this when it successfully loaded so that the next time we try to load a file with the same key, finding the key in the HashSet means that it was already SUCCESSFULLY loaded.
},
() => t.SetException(new Exception("Could not load file: \"" + resourceFile.Url + "\".")));
return(t.Task);
}
var task = new TaskCompletionSource <object>();
task.SetResult(null);
return(task.Task);
}
/// <summary>
/// Adds a 'script' tag to the HTML page and waits for the script to finish loading.
/// </summary>
/// <param name="url">The URL of the JavaScript file, with the syntax ms-appx:///AssemblyName/Folder/FileName.js or /AssemblyName;component/Folder/FileName.js</param>
/// <returns>Nothing.</returns>
public static Task <object> LoadJavaScriptFile(string url)
{
// Get the assembly name of the calling method: //IMPORTANT: the call to the "GetCallingAssembly" method must be done in the method that is executed immediately after the one where the URI is defined! Be careful when moving the following line of code.
#if !BRIDGE
string callerAssemblyName = Interop.IsRunningInTheSimulator ? Assembly.GetCallingAssembly().GetName().Name : INTERNAL_UriHelper.GetJavaScriptCallingAssembly();
#else
string callerAssemblyName = INTERNAL_UriHelper.GetJavaScriptCallingAssembly();
#endif
var t = new TaskCompletionSource <object>();
INTERNAL_InteropImplementation.LoadJavaScriptFile(url, callerAssemblyName, () => t.SetResult(null), () => t.SetException(new Exception("Could not load file: \"" + url + "\".")));
return(t.Task);
}