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      1 /*
      2  * Copyright (C) 2013 Google 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "modules/crypto/WorkerGlobalScopeCrypto.h"
     33 
     34 #include "core/dom/ScriptExecutionContext.h"
     35 #include "modules/crypto/WorkerCrypto.h"
     36 
     37 namespace WebCore {
     38 
     39 WorkerGlobalScopeCrypto::WorkerGlobalScopeCrypto()
     40 {
     41 }
     42 
     43 WorkerGlobalScopeCrypto::~WorkerGlobalScopeCrypto()
     44 {
     45 }
     46 
     47 const char* WorkerGlobalScopeCrypto::supplementName()
     48 {
     49     return "WorkerGlobalScopeCrypto";
     50 }
     51 
     52 WorkerGlobalScopeCrypto* WorkerGlobalScopeCrypto::from(ScriptExecutionContext* context)
     53 {
     54     WorkerGlobalScopeCrypto* supplement = static_cast<WorkerGlobalScopeCrypto*>(Supplement<ScriptExecutionContext>::from(context, supplementName()));
     55     if (!supplement) {
     56         supplement = new WorkerGlobalScopeCrypto();
     57         provideTo(context, supplementName(), adoptPtr(supplement));
     58     }
     59     return supplement;
     60 }
     61 
     62 WorkerCrypto* WorkerGlobalScopeCrypto::crypto(ScriptExecutionContext* context)
     63 {
     64     return WorkerGlobalScopeCrypto::from(context)->crypto();
     65 }
     66 
     67 WorkerCrypto* WorkerGlobalScopeCrypto::crypto() const
     68 {
     69     if (!m_crypto)
     70         m_crypto = WorkerCrypto::create();
     71     return m_crypto.get();
     72 }
     73 
     74 } // namespace WebCore
     75