WebUserMediaClient.mm [plain text]
/*
* Copyright (C) 2013 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. AND ITS CONTRIBUTORS ``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 ITS 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 "WebUserMediaClient.h"
#if ENABLE(MEDIA_STREAM)
#import "WebDelegateImplementationCaching.h"
#import "WebSecurityOriginInternal.h"
#import "WebUIDelegatePrivate.h"
#import "WebViewInternal.h"
#import <WebCore/BlockExceptions.h>
#import <WebCore/Page.h>
#import <WebCore/ScriptExecutionContext.h>
#import <WebCore/UserMediaRequest.h>
#import <wtf/HashMap.h>
#import <wtf/PassOwnPtr.h>
#import <wtf/RefPtr.h>
#import <wtf/RetainPtr.h>
using namespace WebCore;
@interface WebUserMediaPolicyListener : NSObject <WebAllowDenyPolicyListener>
{
RefPtr<UserMediaRequest> _request;
}
- (id)initWithUserMediaRequest:(PassRefPtr<UserMediaRequest>)request;
- (void)cancelRequest;
- (void)allow;
- (void)deny;
@end
typedef HashMap<RefPtr<UserMediaRequest>, RetainPtr<WebUserMediaPolicyListener>> UserMediaRequestsMap;
static UserMediaRequestsMap& userMediaRequestsMap()
{
DEPRECATED_DEFINE_STATIC_LOCAL(UserMediaRequestsMap, requests, ());
return requests;
}
static void AddRequestToMap(UserMediaRequest* request, RetainPtr<WebUserMediaPolicyListener> listener)
{
userMediaRequestsMap().set(request, listener);
}
static void RemoveRequestFromMap(UserMediaRequest* request)
{
userMediaRequestsMap().remove(request);
}
WebUserMediaClient::WebUserMediaClient(WebView* webView)
: m_webView(webView)
{
}
WebUserMediaClient::~WebUserMediaClient()
{
}
void WebUserMediaClient::pageDestroyed()
{
UserMediaRequestsMap& requestsMap = userMediaRequestsMap();
for (UserMediaRequestsMap::iterator it = requestsMap.begin(); it != requestsMap.end(); ++it) {
[it->value cancelRequest];
requestsMap.remove(it);
}
delete this;
}
void WebUserMediaClient::requestPermission(PassRefPtr<UserMediaRequest> prpRequest)
{
BEGIN_BLOCK_OBJC_EXCEPTIONS;
UserMediaRequest* request = prpRequest.get();
SEL selector = @selector(webView:decidePolicyForUserMediaRequestFromOrigin:listener:);
if (![[m_webView UIDelegate] respondsToSelector:selector]) {
request->userMediaAccessDenied();
return;
}
WebUserMediaPolicyListener *listener = [[WebUserMediaPolicyListener alloc] initWithUserMediaRequest:request];
WebSecurityOrigin *webOrigin = [[WebSecurityOrigin alloc] _initWithWebCoreSecurityOrigin:request->securityOrigin()];
CallUIDelegate(m_webView, selector, webOrigin, listener);
AddRequestToMap(request, listener);
[webOrigin release];
[listener release];
END_BLOCK_OBJC_EXCEPTIONS;
}
void WebUserMediaClient::cancelRequest(UserMediaRequest* request)
{
UserMediaRequestsMap::iterator it = userMediaRequestsMap().find(request);
if (it == userMediaRequestsMap().end())
return;
[it->value cancelRequest];
userMediaRequestsMap().remove(it);
}
@implementation WebUserMediaPolicyListener
- (id)initWithUserMediaRequest:(PassRefPtr<UserMediaRequest>)request
{
#if ENABLE(MEDIA_STREAM)
if (!(self = [super init]))
return nil;
_request = request;
return self;
#endif
}
- (void)cancelRequest
{
#if ENABLE(MEDIA_STREAM)
if (!_request)
return;
_request = 0;
#endif
}
- (void)allow
{
#if ENABLE(MEDIA_STREAM)
if (!_request)
return;
_request->userMediaAccessGranted();
RemoveRequestFromMap(_request.get());
#endif
}
- (void)deny
{
#if ENABLE(MEDIA_STREAM)
if (!_request)
return;
_request->userMediaAccessDenied();
RemoveRequestFromMap(_request.get());
#endif
}
@end
#endif