/// <summary>Requests a file over the internet and posts form data to it.</summary>
/// <param name="url">The url to request.</param>
/// <param name="onDone">A method to call with the result.</param>
/// <param name="form">A http form to send with the request.</param>
public static void Request(string url,OnHttpEvent onDone,WWWForm form){
HttpRequest request=new HttpRequest(url,onDone);
if(form!=null){
request.AttachForm(form);
}
request.Send();
}
/// <summary>The callback used to process a completed request.</summary>
/// <param name="request">The HttpRequest that has now completed.</param>
private static void OnAjaxDone(HttpRequest request){
object[] extraData=(object[])request.ExtraData;
DynamicMethod<Nitro.Void> callback=(DynamicMethod<Nitro.Void>)extraData[0];
request.ExtraData=extraData[1];
if(callback!=null){
callback.Run(request);
}
}
public HttpErrorInfo(HttpRequest request){
// Store the request:
Request=request;
// Grab the URL:
Url=new FilePath(request.Url,"");
// Grab the message:
Message=request.Error;
}
public override void OnGetGraphic(ImagePackage package,FilePath path){
// Work like a proper browser - let's go get the image from the web.
// Second is for video - it's called when the video is ready for playback but
// Not necessarily fully downloaded.
// First, was this graphic already requested?
// If so, we'll provide that immediately.
ImagePackage previousRequest=GetFromCache(path.Url);
if(previousRequest!=null){
// Great - provide this packages result first.
// This prevents any flashing if innerHTML is loaded.
package.GotCached(previousRequest);
return;
}
HttpRequest request=new HttpRequest(path.Url,GotGraphicResult);
request.OnRequestReady+=GotGraphicResult;
request.ExtraData=package;
request.Send();
}
//--------------------------------------
/// <summary>Performs a post request, sending the given post data.</summary>
/// <param name="url">The URL to request.</param>
/// <param name="postData">The data to send (as a UTF8 string).</param>
/// <param name="callback">The callback to run when the request completes.</param>
/// <param name="extraData">A custom object to pass to the callback when the request completes.</param>
public static void Post(string url,string postData,DynamicMethod<Nitro.Void> callback,object extraData){
HttpRequest request=new HttpRequest(url,OnAjaxDone);
request.ExtraData=new object[]{callback,extraData};
request.PostData=System.Text.Encoding.UTF8.GetBytes(postData);
request.Send();
}
/// <summary>Performs a simple get request, calling the callback with the result.</summary>
/// <param name="url">The URL to request.</param>
/// <param name="callback">The callback to run when the request completes.</param>
/// <param name="extraData">A custom object to pass to the callback when the request completes.</param>
public static void Get(string url,DynamicMethod<Nitro.Void> callback,object extraData){
HttpRequest request=new HttpRequest(url,OnAjaxDone);
request.ExtraData=new object[]{callback,extraData};
request.Send();
}
//--------------------------------------
private void OnFormSent(HttpRequest request){
Element element=(Element)request.ExtraData;
// Attempt to run ondone:
object result=element.Run("ondone",request);
if(result!=null && result.GetType()==typeof(bool) && (((bool)result)==false) ){
// The ondone function returned false. Don't load into a target at all.
return;
}
// Load the result into target now.
Document document=ResolveTarget(element);
if(document==null){
// Posting a form to an external target.
Log.Add("Warning: Unity cannot post to external targets. The page will be loaded a second time.");
// Open the URL outside of Unity:
Application.OpenURL(request.Url);
}else{
if(request.Errored){
if(ErrorHandlers.PageNotFound!=null){
ErrorHandlers.PageNotFound(new HttpErrorInfo(request),document);
}else{
document.innerHTML="Error: "+request.Error;
}
}else{
document.innerHTML=request.Text;
}
}
}
/// <summary>Requests a file over the internet.</summary>
/// <param name="url">The url to request.</param>
/// <param name="onDone">A method to call with the result.</param>
/// <param name="extraData">An object which will be available in the onDone method.</param>
public static void Request(string url,OnHttpEvent onDone,object extraData){
HttpRequest request=new HttpRequest(url,onDone);
request.ExtraData=extraData;
request.Send();
}
/// <summary>Clears all active requests.</summary>
public static void Clear(){
FirstRequest=LastRequest=null;
}
public static void Queue(HttpRequest request){
if(MaxSimultaneousRequests!=-1 && CurrentActiveRequests==MaxSimultaneousRequests){
// Add to the waiting list:
if(FirstWaitingRequest==null){
LastWaitingRequest=FirstWaitingRequest=request;
}else{
request.RequestBefore=LastWaitingRequest;
LastWaitingRequest=LastWaitingRequest.RequestAfter=request;
}
// The waiting list will be updated when an active request completes.
}else{
// Bump up the active count:
CurrentActiveRequests++;
// Add to main queue:
if(FirstRequest==null){
LastRequest=FirstRequest=request;
}else{
request.RequestBefore=LastRequest;
LastRequest=LastRequest.RequestAfter=request;
}
}
}
public override void OnPostForm(FormData form,Element formElement,FilePath path){
// Post to HTTP; Action is our URL.
HttpRequest request=new HttpRequest(path.Url,OnFormSent);
request.ExtraData=formElement;
request.AttachForm(form.ToUnityForm());
request.Send();
}
public override void OnGetText(TextPackage package,FilePath path){
// Work like a proper browser - Let's go grab text from the given url.
// Note that this will only work with simple sites (no JS - nitro only) or ones built specifically for PowerUI.
HttpRequest request=new HttpRequest(path.Url,GotTextResult);
request.ExtraData=package;
request.Send();
}
private void GotGraphicResult(HttpRequest request){
ImagePackage package=(ImagePackage)request.ExtraData;
if(request.Errored){
package.GotGraphic(request.Error);
}
// Cache it:
AddToCache(request.Url,package);
string url=request.Url.ToLower();
// Split by dot for the type:
string[] pieces=url.Split('.');
// Grab the type:
string type=pieces[pieces.Length-1];
if(type=="spa"){
// Animation
package.GotGraphic(new SPA(request.Url,request.Bytes));
#if !MOBILE
}else if(ContentType.IsVideo(type)){
// Video
package.GotGraphic(request.Video);
#endif
}else if(request.Image!=null){
// Image
package.GotGraphic(request.Image);
}else{
package.GotGraphic(request.Text);
}
}
private void GotTextResult(HttpRequest request){
TextPackage package=(TextPackage)request.ExtraData;
package.GotText(request.Text,request.Error);
}
private void GotDataResult(HttpRequest request){
DataPackage package=(DataPackage)request.ExtraData;
package.GotData(request.Bytes,request.Error);
}
public override void OnGetData(DataPackage package,FilePath path){
HttpRequest request=new HttpRequest(path.Url,GotDataResult);
request.ExtraData=package;
request.Send();
}
