From 67b965c73a1bfa67d894df6bbfd429e9a30e679c Mon Sep 17 00:00:00 2001
From: Vladimir Enchev <vladimir.enchev@telerik.com>
Date: Thu, 13 Mar 2014 11:43:16 +0200
Subject: [PATCH] web client for iOS

---
 WebClient/web_client.ios.ts | 40 ++++++++++++++++++++++++++-----------
 declarations.ios.d.ts       | 20 +++++++++++++++++++
 2 files changed, 48 insertions(+), 12 deletions(-)

diff --git a/WebClient/web_client.ios.ts b/WebClient/web_client.ios.ts
index e307cdb54..e1e94887f 100644
--- a/WebClient/web_client.ios.ts
+++ b/WebClient/web_client.ios.ts
@@ -1,5 +1,4 @@
 import image_module = require("Image/image");
-// TODO: Not implemented for iOS
 
 export module tk {
     export module web {
@@ -11,25 +10,42 @@ export module tk {
               * Downloads string from url.
               */
             public downloadString(url: string, successCallback: (result: string) => void, errorCallback?: (e: Error) => void) {
-                try {
+                Client.getDataFromUrl(url, function (data) {
                     if (successCallback) {
-                        // successCallback(result);
+                        successCallback(Foundation.NSString.initWithDataEncoding(data, 4));
                     }
-                } catch (ex) {
-
-                    if (errorCallback) {
-                        errorCallback(ex);
-                    }
-                }
+                }, errorCallback);
             }
 
             public downloadImage(url: string, successCallback: (image: image_module.tk.ui.Image) => void, errorCallback?: (e: Error) => void) {
-                try {
+                Client.getDataFromUrl(url, function (data) {
                     if (successCallback) {
-                        // successCallback(response);
+                        var image = new image_module.tk.ui.Image();
+                        image.loadFromData(data);
+                        successCallback(image);
                     }
-                } catch (ex) {
+                }, errorCallback);
+            }
 
+            private static getDataFromUrl(url: string, successCallback: (result: any) => void, errorCallback?: (e: Error) => void)
+            {
+                try {
+                    var sessionConfig = Foundation.NSURLSessionConfiguration.defaultSessionConfiguration();
+                    var queue = Foundation.NSOperationQueue.mainQueue();
+                    var session = Foundation.NSURLSession.sessionWithConfigurationDelegateDelegateQueue(sessionConfig, null, queue);
+                    var dataTask = session.dataTaskWithURLCompletionHandler(Foundation.NSURL.URLWithString(url), function (data, response, error) {
+                        if (error) {
+                            if (errorCallback) {
+                                errorCallback(error.description);
+                            }
+                        } else if (successCallback) {
+                            successCallback(data);
+                        }
+                    });
+
+                    dataTask.resume();
+                    session.finishTasksAndInvalidate();
+                } catch (ex) {
                     if (errorCallback) {
                         errorCallback(ex);
                     }
diff --git a/declarations.ios.d.ts b/declarations.ios.d.ts
index 1a5eb69d4..be1dfe23f 100644
--- a/declarations.ios.d.ts
+++ b/declarations.ios.d.ts
@@ -58,4 +58,24 @@ declare module Foundation {
         static defaultManager(): NSFileManager;
         URLsForDirectoryInDomains(directory: number, mask: number): any;
     }
+
+    export class NSString {
+        static initWithDataEncoding(data: any, encoding: any) : any;
+    }
+
+    export class NSURLSessionConfiguration {
+        static defaultSessionConfiguration(): any;
+    }
+
+    export class NSOperationQueue {
+        static mainQueue(): any;
+    }
+
+    export class NSURLSession {
+        static sessionWithConfigurationDelegateDelegateQueue(config: any, param: any, queue : any): any;
+    }
+
+    export class NSURL {
+        static URLWithString(url : string): any;
+    }
 }