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      1 /*
      2  * Copyright (C) 2009 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #import "WebGeolocationClient.h"
     27 
     28 #import "WebDelegateImplementationCaching.h"
     29 #import "WebFrameInternal.h"
     30 #import "WebGeolocationPositionInternal.h"
     31 #import "WebSecurityOriginInternal.h"
     32 #import "WebUIDelegatePrivate.h"
     33 #import "WebViewInternal.h"
     34 #import <WebCore/BlockExceptions.h>
     35 #import <WebCore/Frame.h>
     36 #import <WebCore/Geolocation.h>
     37 
     38 using namespace WebCore;
     39 
     40 @interface WebGeolocationPolicyListener : NSObject <WebGeolocationPolicyListener>
     41 {
     42     RefPtr<Geolocation> _geolocation;
     43 }
     44 - (id)initWithGeolocation:(Geolocation*)geolocation;
     45 @end
     46 
     47 WebGeolocationClient::WebGeolocationClient(WebView *webView)
     48     : m_webView(webView)
     49 {
     50 }
     51 
     52 void WebGeolocationClient::geolocationDestroyed()
     53 {
     54     delete this;
     55 }
     56 
     57 void WebGeolocationClient::startUpdating()
     58 {
     59     [[m_webView _geolocationProvider] registerWebView:m_webView];
     60 }
     61 
     62 void WebGeolocationClient::stopUpdating()
     63 {
     64     [[m_webView _geolocationProvider] unregisterWebView:m_webView];
     65 }
     66 
     67 void WebGeolocationClient::requestPermission(Geolocation* geolocation)
     68 {
     69     BEGIN_BLOCK_OBJC_EXCEPTIONS;
     70 
     71     SEL selector = @selector(webView:decidePolicyForGeolocationRequestFromOrigin:frame:listener:);
     72     if (![[m_webView UIDelegate] respondsToSelector:selector]) {
     73         geolocation->setIsAllowed(false);
     74         return;
     75     }
     76 
     77     Frame *frame = geolocation->frame();
     78     WebSecurityOrigin *webOrigin = [[WebSecurityOrigin alloc] _initWithWebCoreSecurityOrigin:frame->document()->securityOrigin()];
     79     WebGeolocationPolicyListener* listener = [[WebGeolocationPolicyListener alloc] initWithGeolocation:geolocation];
     80 
     81     CallUIDelegate(m_webView, selector, webOrigin, kit(frame), listener);
     82 
     83     [webOrigin release];
     84     [listener release];
     85 
     86     END_BLOCK_OBJC_EXCEPTIONS;
     87 }
     88 
     89 GeolocationPosition* WebGeolocationClient::lastPosition()
     90 {
     91 #if ENABLE(CLIENT_BASED_GEOLOCATION)
     92     return core([[m_webView _geolocationProvider] lastPosition]);
     93 #else
     94     return 0;
     95 #endif
     96 }
     97 
     98 @implementation WebGeolocationPolicyListener
     99 
    100 - (id)initWithGeolocation:(Geolocation*)geolocation
    101 {
    102     if (!(self = [super init]))
    103         return nil;
    104     _geolocation = geolocation;
    105     return self;
    106 }
    107 
    108 - (void)allow
    109 {
    110     _geolocation->setIsAllowed(true);
    111 }
    112 
    113 - (void)deny
    114 {
    115     _geolocation->setIsAllowed(false);
    116 }
    117 
    118 @end
    119 
    120