/// <summary>
/// Gets the JSValue or creates it if not found
/// </summary>
/// <returns>The or create.</returns>
/// <param name="ctx">Context.</param>
/// <param name="Name">Name.</param>
public static JSValue GetOrCreate(this JSContext ctx, string Name)
{
var aClass = ctx [new NSString(Name)];
if (aClass == null || aClass.IsUndefined)
{
ctx.SetObject(new NSObject(), Name);
aClass = ctx [new NSString(Name)];
}
return(aClass);
}
public static JSValue BuildNamespace(this JSContext ctx, String Namespace)
{
//split the namespace into sections
var names = Namespace.Split('.');
JSValue jsObject = null;
foreach (var aName in names)
{
if (jsObject == null)
{
var anObject = ctx [new NSString(aName)];
if (anObject != null)
{
jsObject = anObject;
}
else
{
//creat an object and load it back
ctx.SetObject(new NSObject(), aName);
jsObject = ctx [new NSString(aName)];
}
}
else
{
var anObject = jsObject [new NSString(aName)];
if (anObject != null)
{
jsObject = anObject;
}
else
{
//creat an object and load it back
jsObject.SetObject(new NSObject(), aName);
jsObject = jsObject [new NSString(aName)];
}
}
}
return(jsObject);
}
public override void DidCreateJavaScriptContext(UIWebView webView, JSContext ctx)
{
if (ctx != null)
{
//set a value
this.ANumber = 20;
//set an NSObject value in to the context
ctx.SetObject(webView, @"webView");
ctx.SetObject(this, @"webDelegate");
///Attach a hybrid api handler
DSHybridHandler.Attach(ctx);
//load a property
ctx.SetObject(ANumber, @"aNumber");
//attach object to namespace
ctx.SetObject("webView", "aNumber", ANumber);
//create an object that uses DSJavascriptObject as a base classes, which in turn exposes class members using JSExport
//Note this can onl be done with the protocol in Obj-c not monotouch
ctx.SetObject(new aClass(), @"aClass");
//attach extra property to the aclass object
ctx.SetObject("aClass", "subNumber", ANumber);
//set a execution block that can accept a number and return a number
ctx.SetNumberBlock((NSObject num) => {
var toInt = num as NSNumber;
var aInt = toInt.IntValue;
return(new NSNumber(aInt * 2));
}, @"getInt");
//Set an execution block in the context, 1 parameter no return type
ctx.SetBlock((obj) => {
BeginInvokeOnMainThread(() => {
//convert to string
var name = obj.ToString();
//create message
var message = String.Format("Hello, {0}!", name);
var aNewAler = new UIAlertView("Welome", message, null, "OK", null);
aNewAler.Show();
});
}, @"sayHello");
///Multi-parameter void block
ctx.SetBlock((obj, obj2) => {
BeginInvokeOnMainThread(() => {
var firstName = obj.ToString();
var lastName = obj2.ToString();
var message = String.Format("Hello, {0}{1}!", firstName, lastName);
var aNewAler = new UIAlertView("Welome", message, null, "OK", null);
aNewAler.Show();
});
}, @"sayFirstAndLastName");
}
}
public override void DidCreateJavaScriptContext (UIWebView webView, JSContext ctx)
{
if (ctx != null)
{
//set a value
this.ANumber = 20;
//set an NSObject value in to the context
ctx.SetObject (webView, @"webView");
ctx.SetObject (this, @"webDelegate");
///Attach a hybrid api handler
DSHybridHandler.Attach (ctx);
//load a property
ctx.SetObject (ANumber, @"aNumber");
//attach object to namespace
ctx.SetObject ("webView", "aNumber", ANumber);
//create an object that uses DSJavascriptObject as a base classes, which in turn exposes class members using JSExport
//Note this can onl be done with the protocol in Obj-c not monotouch
ctx.SetObject (new aClass (), @"aClass");
//attach extra property to the aclass object
ctx.SetObject ("aClass", "subNumber", ANumber);
//set a execution block that can accept a number and return a number
ctx.SetNumberBlock ((NSObject num) => {
var toInt = num as NSNumber;
var aInt = toInt.IntValue;
return new NSNumber (aInt * 2);
}, @"getInt");
//Set an execution block in the context, 1 parameter no return type
ctx.SetBlock ((obj) => {
BeginInvokeOnMainThread (() => {
//convert to string
var name = obj.ToString ();
//create message
var message = String.Format ("Hello, {0}!", name);
var aNewAler = new UIAlertView ("Welome", message, null, "OK", null);
aNewAler.Show ();
});
}, @"sayHello");
///Multi-parameter void block
ctx.SetBlock ((obj, obj2) => {
BeginInvokeOnMainThread (() => {
var firstName = obj.ToString ();
var lastName = obj2.ToString ();
var message = String.Format ("Hello, {0}{1}!", firstName, lastName);
var aNewAler = new UIAlertView ("Welome", message, null, "OK", null);
aNewAler.Show ();
});
}, @"sayFirstAndLastName");
}
}