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      1 /*
      2 * Copyright (C) 2012 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 #ifndef V8ObjectConstructor_h
     32 #define V8ObjectConstructor_h
     33 
     34 #include "bindings/core/v8/V8PerIsolateData.h"
     35 #include "bindings/core/v8/V8RecursionScope.h"
     36 
     37 #include <v8.h>
     38 
     39 namespace blink {
     40 
     41 class Document;
     42 
     43 class ConstructorMode {
     44 public:
     45     enum Mode {
     46         WrapExistingObject,
     47         CreateNewObject
     48     };
     49 
     50     ConstructorMode(v8::Isolate* isolate)
     51         : m_isolate(isolate)
     52         , m_microtaskSuppression(isolate)
     53     {
     54         V8PerIsolateData* data = V8PerIsolateData::from(m_isolate);
     55         m_previous = data->m_constructorMode;
     56         data->m_constructorMode = WrapExistingObject;
     57     }
     58 
     59     ~ConstructorMode()
     60     {
     61         V8PerIsolateData* data = V8PerIsolateData::from(m_isolate);
     62         data->m_constructorMode = m_previous;
     63     }
     64 
     65     static bool current(v8::Isolate* isolate)
     66     {
     67         return V8PerIsolateData::from(isolate)->m_constructorMode;
     68     }
     69 
     70 private:
     71     v8::Isolate* m_isolate;
     72     bool m_previous;
     73     V8RecursionScope::MicrotaskSuppression m_microtaskSuppression;
     74 };
     75 
     76 class V8ObjectConstructor {
     77 public:
     78     static v8::Local<v8::Object> newInstance(v8::Isolate*, v8::Handle<v8::Function>);
     79     static v8::Local<v8::Object> newInstance(v8::Isolate*, v8::Handle<v8::Function>, int, v8::Handle<v8::Value> argv[]);
     80     static v8::Local<v8::Object> newInstanceInDocument(v8::Isolate*, v8::Handle<v8::Function>, int, v8::Handle<v8::Value> argv[], Document*);
     81 
     82     static void isValidConstructorMode(const v8::FunctionCallbackInfo<v8::Value>&);
     83 };
     84 
     85 } // namespace blink
     86 
     87 #endif // V8ObjectConstructor_h
     88