/*

 * Copyright (C) 2010 Apple Inc. All Rights Reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#import "MockGeolocationProvider.h"

@implementation MockGeolocationProvider

+ (MockGeolocationProvider *)shared

{

    static MockGeolocationProvider *provider = [[MockGeolocationProvider alloc] init];

    return provider;

}

- (void)dealloc

{

    ASSERT(_registeredViews.isEmpty());

    [_lastPosition release];

    [_error release];

    [super dealloc];

}

- (void)setPosition:(WebGeolocationPosition *)position

{

    if (_lastPosition != position) {

        [_lastPosition release];

        _lastPosition = [position retain];

    }

    [_error release];

    _error = 0;

    if (!_timer)

        _timer = [NSTimer scheduledTimerWithTimeInterval:0 target:self selector:@selector(timerFired) userInfo:0 repeats:NO];

}

- (void)setError:(NSError *)error

{

    if (_error != error) {

        [_error release];

        _error = [error retain];

    }

    [_lastPosition release];

    _lastPosition = 0;

    if (!_timer)

        _timer = [NSTimer scheduledTimerWithTimeInterval:0 target:self selector:@selector(timerFired) userInfo:0 repeats:NO];

}

- (void)registerWebView:(WebView *)webView

{

    _registeredViews.add(webView);

}

- (void)unregisterWebView:(WebView *)webView

{

    _registeredViews.remove(webView);

}

- (WebGeolocationPosition *)lastPosition

{

    return _lastPosition;

}

- (void)stopTimer

{

    [_timer invalidate];

    _timer = 0;

}

- (void)timerFired

{

    _timer = 0;

    // Expect that views won't be (un)registered while iterating.

    HashSet<WebView*> views = _registeredViews;

    for (HashSet<WebView*>::iterator iter = views.begin(); iter != views.end(); ++iter) {

        if (_error)

            [*iter _geolocationDidFailWithError:_error];

        else

            [*iter _geolocationDidChangePosition:_lastPosition];

    }

}

@end