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| 1 /* | |
| 2 * Copyright (C) 2008, 2009 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 ScriptValue_h | |
| 32 #define ScriptValue_h | |
| 33 | |
| 34 #include "bindings/v8/ScriptState.h" | |
| 35 #include "bindings/v8/SharedPersistent.h" | |
| 36 #include "wtf/PassRefPtr.h" | |
| 37 #include "wtf/RefPtr.h" | |
| 38 #include "wtf/text/WTFString.h" | |
| 39 #include <v8.h> | |
| 40 | |
| 41 namespace WebCore { | |
| 42 | |
| 43 class JSONValue; | |
| 44 | |
| 45 class ScriptValue { | |
| 46 public: | |
| 47 ScriptValue() | |
| 48 : m_isolate(0) | |
| 49 , m_scriptState(nullptr) | |
| 50 { | |
| 51 } | |
| 52 | |
| 53 virtual ~ScriptValue(); | |
| 54 | |
| 55 ScriptValue(ScriptState* scriptState, v8::Handle<v8::Value> value) | |
| 56 : m_isolate(scriptState->isolate()) | |
| 57 , m_scriptState(scriptState) | |
| 58 , m_value(value.IsEmpty() ? nullptr : SharedPersistent<v8::Value>::creat
e(value, scriptState->isolate())) | |
| 59 { | |
| 60 ASSERT(isEmpty() || m_scriptState); | |
| 61 } | |
| 62 | |
| 63 ScriptValue(const ScriptValue& value) | |
| 64 : m_isolate(value.m_isolate) | |
| 65 , m_scriptState(value.m_scriptState) | |
| 66 , m_value(value.m_value) | |
| 67 { | |
| 68 ASSERT(isEmpty() || m_scriptState); | |
| 69 } | |
| 70 | |
| 71 ScriptState* scriptState() const | |
| 72 { | |
| 73 return m_scriptState.get(); | |
| 74 } | |
| 75 | |
| 76 v8::Isolate* isolate() const | |
| 77 { | |
| 78 if (!m_isolate) | |
| 79 m_isolate = v8::Isolate::GetCurrent(); | |
| 80 return m_isolate; | |
| 81 } | |
| 82 | |
| 83 ScriptValue& operator=(const ScriptValue& value) | |
| 84 { | |
| 85 if (this != &value) { | |
| 86 m_isolate = value.m_isolate; | |
| 87 m_scriptState = value.m_scriptState; | |
| 88 m_value = value.m_value; | |
| 89 } | |
| 90 return *this; | |
| 91 } | |
| 92 | |
| 93 bool operator==(const ScriptValue& value) const | |
| 94 { | |
| 95 if (isEmpty()) | |
| 96 return value.isEmpty(); | |
| 97 if (value.isEmpty()) | |
| 98 return false; | |
| 99 return *m_value == *value.m_value; | |
| 100 } | |
| 101 | |
| 102 bool operator!=(const ScriptValue& value) const | |
| 103 { | |
| 104 return !operator==(value); | |
| 105 } | |
| 106 | |
| 107 // This creates a new local Handle; Don't use this in performance-sensitive
places. | |
| 108 bool isFunction() const | |
| 109 { | |
| 110 ASSERT(!isEmpty()); | |
| 111 v8::Handle<v8::Value> value = v8Value(); | |
| 112 return !value.IsEmpty() && value->IsFunction(); | |
| 113 } | |
| 114 | |
| 115 // This creates a new local Handle; Don't use this in performance-sensitive
places. | |
| 116 bool isNull() const | |
| 117 { | |
| 118 ASSERT(!isEmpty()); | |
| 119 v8::Handle<v8::Value> value = v8Value(); | |
| 120 return !value.IsEmpty() && value->IsNull(); | |
| 121 } | |
| 122 | |
| 123 // This creates a new local Handle; Don't use this in performance-sensitive
places. | |
| 124 bool isUndefined() const | |
| 125 { | |
| 126 ASSERT(!isEmpty()); | |
| 127 v8::Handle<v8::Value> value = v8Value(); | |
| 128 return !value.IsEmpty() && value->IsUndefined(); | |
| 129 } | |
| 130 | |
| 131 // This creates a new local Handle; Don't use this in performance-sensitive
places. | |
| 132 bool isObject() const | |
| 133 { | |
| 134 ASSERT(!isEmpty()); | |
| 135 v8::Handle<v8::Value> value = v8Value(); | |
| 136 return !value.IsEmpty() && value->IsObject(); | |
| 137 } | |
| 138 | |
| 139 bool isEmpty() const | |
| 140 { | |
| 141 return !m_value.get() || m_value->isEmpty(); | |
| 142 } | |
| 143 | |
| 144 void clear() | |
| 145 { | |
| 146 m_value = nullptr; | |
| 147 } | |
| 148 | |
| 149 v8::Handle<v8::Value> v8Value() const; | |
| 150 | |
| 151 bool toString(String&) const; | |
| 152 PassRefPtr<JSONValue> toJSONValue(ScriptState*) const; | |
| 153 | |
| 154 private: | |
| 155 mutable v8::Isolate* m_isolate; | |
| 156 mutable RefPtr<ScriptState> m_scriptState; | |
| 157 RefPtr<SharedPersistent<v8::Value> > m_value; | |
| 158 }; | |
| 159 | |
| 160 } // namespace WebCore | |
| 161 | |
| 162 #endif // ScriptValue_h | |
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