1 /* 2 * Copyright (C) 2009 Google Inc. All rights reserved. 3 * Copyright (C) 2014 Opera Software ASA. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include "config.h" 33 34 #include "bindings/core/v8/NPV8Object.h" 35 #include "bindings/core/v8/SharedPersistent.h" 36 #include "bindings/core/v8/V8Binding.h" 37 #include "bindings/core/v8/V8HTMLAppletElement.h" 38 #include "bindings/core/v8/V8HTMLEmbedElement.h" 39 #include "bindings/core/v8/V8HTMLObjectElement.h" 40 #include "bindings/core/v8/V8NPObject.h" 41 #include "core/frame/UseCounter.h" 42 #include "wtf/OwnPtr.h" 43 #include "wtf/PassOwnPtr.h" 44 45 namespace blink { 46 47 namespace { 48 49 template <typename ElementType, typename PropertyType> 50 void getScriptableObjectProperty(PropertyType property, const v8::PropertyCallbackInfo<v8::Value>& info) 51 { 52 HTMLPlugInElement* impl = ElementType::toImpl(info.Holder()); 53 RefPtr<SharedPersistent<v8::Object> > wrapper = impl->pluginWrapper(); 54 if (!wrapper) 55 return; 56 57 v8::Local<v8::Object> instance = wrapper->newLocal(info.GetIsolate()); 58 if (instance.IsEmpty()) 59 return; 60 61 TONATIVE_VOID(v8::Local<v8::Value>, value, instance->Get(property)); 62 63 // We quit here to allow the binding code to look up general HTMLObjectElement properties 64 // if they are not overriden by plugin. 65 if (value->IsUndefined()) 66 return; 67 68 v8SetReturnValue(info, value); 69 } 70 71 namespace { 72 void callNpObjectSetter(v8::Local<v8::Object> self, v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) 73 { 74 npObjectSetNamedProperty(self, name, value, info); 75 } 76 77 void callNpObjectSetter(v8::Local<v8::Object> self, uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) 78 { 79 npObjectSetIndexedProperty(self, index, value, info); 80 } 81 } 82 83 template <typename ElementType, typename PropertyType> 84 void setScriptableObjectProperty(PropertyType property, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) 85 { 86 HTMLPlugInElement* impl = ElementType::toImpl(info.Holder()); 87 RefPtr<SharedPersistent<v8::Object> > wrapper = impl->pluginWrapper(); 88 if (!wrapper) 89 return; 90 91 v8::Local<v8::Object> instance = wrapper->newLocal(info.GetIsolate()); 92 if (instance.IsEmpty()) 93 return; 94 95 // We need to directly call setter on NPObject to be able to detect 96 // situation where NPObject notifies it does not possess the property 97 // to be able to lookup standard DOM property. 98 // This information is lost when retrieving it through v8::Object. 99 if (isWrappedNPObject(instance)) { 100 callNpObjectSetter(instance, property, value, info); 101 return; 102 } 103 104 // FIXME: The gTalk pepper plugin is the only plugin to make use of 105 // SetProperty and that is being deprecated. This can be removed as soon as 106 // it goes away. 107 // Call SetProperty on a pepper plugin's scriptable object. Note that we 108 // never set the return value here which would indicate that the plugin has 109 // intercepted the SetProperty call, which means that the property on the 110 // DOM element will also be set. For plugin's that don't intercept the call 111 // (all except gTalk) this makes no difference at all. For gTalk the fact 112 // that the property on the DOM element also gets set is inconsequential. 113 instance->Set(property, value); 114 } 115 } // namespace 116 117 void V8HTMLAppletElement::namedPropertyGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info) 118 { 119 getScriptableObjectProperty<V8HTMLAppletElement>(name, info); 120 } 121 122 void V8HTMLEmbedElement::namedPropertyGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info) 123 { 124 getScriptableObjectProperty<V8HTMLEmbedElement>(name, info); 125 } 126 127 void V8HTMLObjectElement::namedPropertyGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info) 128 { 129 getScriptableObjectProperty<V8HTMLObjectElement>(name, info); 130 } 131 132 void V8HTMLAppletElement::namedPropertySetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) 133 { 134 setScriptableObjectProperty<V8HTMLAppletElement>(name, value, info); 135 } 136 137 void V8HTMLEmbedElement::namedPropertySetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) 138 { 139 setScriptableObjectProperty<V8HTMLEmbedElement>(name, value, info); 140 } 141 142 void V8HTMLObjectElement::namedPropertySetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) 143 { 144 setScriptableObjectProperty<V8HTMLObjectElement>(name, value, info); 145 } 146 147 void V8HTMLAppletElement::indexedPropertyGetterCustom(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>& info) 148 { 149 getScriptableObjectProperty<V8HTMLAppletElement>(index, info); 150 } 151 152 void V8HTMLEmbedElement::indexedPropertyGetterCustom(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>& info) 153 { 154 getScriptableObjectProperty<V8HTMLEmbedElement>(index, info); 155 } 156 157 void V8HTMLObjectElement::indexedPropertyGetterCustom(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>& info) 158 { 159 getScriptableObjectProperty<V8HTMLObjectElement>(index, info); 160 } 161 162 void V8HTMLAppletElement::indexedPropertySetterCustom(uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) 163 { 164 setScriptableObjectProperty<V8HTMLAppletElement>(index, value, info); 165 } 166 167 void V8HTMLEmbedElement::indexedPropertySetterCustom(uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) 168 { 169 setScriptableObjectProperty<V8HTMLEmbedElement>(index, value, info); 170 } 171 172 void V8HTMLObjectElement::indexedPropertySetterCustom(uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) 173 { 174 setScriptableObjectProperty<V8HTMLObjectElement>(index, value, info); 175 } 176 177 namespace { 178 179 template <typename ElementType> 180 void invokeOnScriptableObject(const v8::FunctionCallbackInfo<v8::Value>& info) 181 { 182 HTMLPlugInElement* impl = ElementType::toImpl(info.Holder()); 183 RefPtr<SharedPersistent<v8::Object> > wrapper = impl->pluginWrapper(); 184 if (!wrapper) 185 return; 186 187 v8::Local<v8::Object> instance = wrapper->newLocal(info.GetIsolate()); 188 if (instance.IsEmpty()) 189 return; 190 191 WTF::OwnPtr<v8::Handle<v8::Value>[] > arguments = adoptArrayPtr(new v8::Handle<v8::Value>[info.Length()]); 192 for (int i = 0; i < info.Length(); ++i) 193 arguments[i] = info[i]; 194 195 TONATIVE_VOID(v8::Local<v8::Value>, retVal, instance->CallAsFunction(info.This(), info.Length(), arguments.get())); 196 v8SetReturnValue(info, retVal); 197 } 198 199 } // namespace 200 201 void V8HTMLAppletElement::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info) 202 { 203 invokeOnScriptableObject<V8HTMLAppletElement>(info); 204 UseCounter::count(V8HTMLAppletElement::toImpl(info.Holder())->document(), UseCounter::HTMLAppletElementLegacyCall); 205 } 206 207 void V8HTMLEmbedElement::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info) 208 { 209 invokeOnScriptableObject<V8HTMLEmbedElement>(info); 210 UseCounter::count(V8HTMLEmbedElement::toImpl(info.Holder())->document(), UseCounter::HTMLEmbedElementLegacyCall); 211 } 212 213 void V8HTMLObjectElement::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info) 214 { 215 invokeOnScriptableObject<V8HTMLObjectElement>(info); 216 UseCounter::count(V8HTMLObjectElement::toImpl(info.Holder())->document(), UseCounter::HTMLObjectElementLegacyCall); 217 } 218 219 } // namespace blink 220
