internal static void LoadCssFile(string url, Action callback)
{
// 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
string html5Path = INTERNAL_UriHelper.ConvertToHtml5Path(url);
CSHTML5.Interop.ExecuteJavaScript(
@"// Add the link tag to the head
var head = document.getElementsByTagName('head')[0];
var link = document.createElement('link');
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = $0;
link.media = 'all';
// Fire the loading
head.appendChild(link);
// Some browsers do not support the 'onload' event of the 'link' element,
// therefore we use the 'onerror' event of the 'img' tag instead, which is always triggered:
var img = document.createElement('img');
img.onerror = $1;
img.src = $0;", html5Path, callback);
}
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>
/// Loads a list of JavaScript files from either an online location (http/https) or the local project. Note: This method will stop at the first script it cannot load, meaning that all subsequent scripts will not be loaded.
/// </summary>
/// <param name="urls">The URLs of the JavaScript files, with the syntax ms-appx:///AssemblyName/Folder/FileName.js or /AssemblyName;component/Folder/FileName.js or https://someAddress/FileName.js
/// </param>
/// <param name="callback">The method that is called when all the files have successfully finished loading.</param>
/// <param name="callbackOnError">The method that is called when one of the files could not be loaded.</param>
public static void LoadJavaScriptFilesAsync(IEnumerable <string> urls, Action callback, Action callbackOnError = null)
{
// 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
List <string> urlsAsList = (urls is List <string>?(List <string>)urls : new List <string>(urls));
INTERNAL_InteropImplementation.LoadJavaScriptFiles(urlsAsList, callerAssemblyName, callback, callbackOnError);
}
/// <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);
}
public static void LoadJavaScriptFilesAsync(IEnumerable <ResourceFile> resourceFiles, Action callback, Action callbackOnError = null)
{
// 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
List <string> urlsAsList = new List <string>();
foreach (var resourceFile in resourceFiles)
{
//add the key to the dictionary and add the url to the list:
if (!_jsScriptFileKeys.Contains(resourceFile.Key))
{
_jsScriptFileKeys.Add(resourceFile.Key);
urlsAsList.Add(resourceFile.Url);
}
}
INTERNAL_InteropImplementation.LoadJavaScriptFiles(urlsAsList, callerAssemblyName, callback, callbackOnError);
}
