inspector/InjectedScriptHost.cpp

   1 /*
   2  * Copyright (C) 2013 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. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "InjectedScriptHost.h"
  28
  29 #if ENABLE(INSPECTOR)
  30
  31 #include "JSInjectedScriptHost.h"
  32
  33 using namespace JSC;
  34
  35 namespace Inspector {
  36
  37 InjectedScriptHost::~InjectedScriptHost()
  38 {
  39 }
  40
  41 JSValue InjectedScriptHost::jsWrapper(ExecState* exec, JSGlobalObject* globalObject)
  42 {
  43     auto key = std::make_pair(exec, globalObject);
  44     auto it = m_wrappers.find(key);
  45     if (it != m_wrappers.end())
  46         return it->value.get();
  47
  48     JSValue jsValue = toJS(exec, globalObject, this);
  49     if (!jsValue.isObject())
  50         return jsValue;
  51
  52     JSObject* jsObject = jsValue.toObject(exec, globalObject);
  53     Strong<JSObject> wrapper(exec->vm(), jsObject);
  54     m_wrappers.add(key, wrapper);
  55
  56     return jsValue;
  57 }
  58
  59 static void clearWrapperFromValue(JSValue value)
  60 {
  61     JSInjectedScriptHost* jsInjectedScriptHost = toJSInjectedScriptHost(value);
  62     ASSERT(jsInjectedScriptHost);
  63     if (jsInjectedScriptHost)
  64         jsInjectedScriptHost->releaseImpl();
  65 }
  66
  67 void InjectedScriptHost::clearWrapper(ExecState* exec, JSGlobalObject* globalObject)
  68 {
  69     auto key = std::make_pair(exec, globalObject);
  70     clearWrapperFromValue(m_wrappers.take(key).get());
  71 }
  72
  73 void InjectedScriptHost::clearAllWrappers()
  74 {
  75     for (auto& wrapper : m_wrappers)
  76         clearWrapperFromValue(wrapper.value.get());
  77
  78     m_wrappers.clear();
  79 }
  80
  81 } // namespace Inspector
  82
  83 #endif // ENABLE(INSPECTOR)