/*

     File: MyController.m 

 Abstract: webView delegate / window controller object for this sample. 

  Version: 1.1 

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 */

#import "MyController.h"

#import "SpecialProtocol.h"

@implementation MyController

@synthesize theWebView;

    /* our awakeFromNib routine is called after the nib file

    has been successfully loaded.  We set up our webPage and install

    our protocol handler then. */

- (void) awakeFromNib {

    NSLog(@"%@ received %@", self, NSStringFromSelector(_cmd));

        /* register our special protocol with webkit */

    [SpecialProtocol registerSpecialProtocol];

        /* load our main webpage. */

    [self reset:nil];

}

- (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender

{

    return YES;

}

    /* called when the reset button is clicked.  Here, we simply reload the page. */

- (IBAction)reset:(id)sender

{

    NSLog(@"%@ received %@", self, NSStringFromSelector(_cmd));

        /* load our main webpage.  You'll notice that in that file we

        load all of our images using the 'special':// scheme (which

        generates the image files on the fly in memory).  */

    NSURL *mainWebPageURL = [[NSBundle mainBundle] URLForResource:@"test" withExtension:@"html"];

    [[theWebView mainFrame] loadRequest:[NSURLRequest requestWithURL:mainWebPageURL]];

}

    /* returns a string that we will use as a key for pairing with

    our MyController object in the dictionary shared between our protocol

    and this controller object.  This will allow the protocol to get

    a reference back to the calling controller object should it need to.  */

+ (NSString*) callerKey {

    return @"caller";

}

    /* Called just before a webView attempts to load a resource.  Here, we look at the

    request and if it's destined for our special protocol handler we modify the request

    so that it contains an NSDictionary containing some information we want to share

    between the code in this file and the custom NSURLProtocol.  */

-(NSURLRequest *)webView:(WebView *)sender resource:(id)identifier 

    willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)redirectResponse

        fromDataSource:(WebDataSource *)dataSource {

        /* if this request will be handled by our special protocol... */

    if ( [SpecialProtocol canInitWithRequest:request] ) {

            /* create a NSDictionary containing any values we want to share between

            our webView/delegate object we are running in now and the protocol handler.

            Here, we'll put a referernce to ourself in there so we can access this

            object from the special protocol handler. */

        NSDictionary *specialVars = [NSDictionary dictionaryWithObject:self

                forKey:[MyController callerKey]];

            /* make a new mutable copy of the request so we can add a reference to our

            dictionary record. */

        NSMutableURLRequest *specialURLRequest = [[request mutableCopy] autorelease];

            /* call our category method to store away a reference to our dictionary. */

        [specialURLRequest setSpecialVars:specialVars];

            /* return the new modified request */

        return specialURLRequest;

    } else {

        return request;

    }

}

    /* this is an extra routine we added to show how the protocol could

    call back to the webView's delegate object while processing a request. */

- (void)callbackFromSpecialRequest:(NSURLRequest *)request

{

    NSLog(@"%@ received %@", self, NSStringFromSelector(_cmd));

}

@end