src/third_party/blink/Source/bindings/core/v8/custom/V8HTMLPlugInElementCustom.cpp - cobalt - Git at Google

 /*
 * Copyright (C) 2009 Google Inc. All rights reserved.
 * Copyright (C) 2014 Opera Software ASA. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

 #include "config.h"

 #include "bindings/core/v8/NPV8Object.h"
 #include "bindings/core/v8/SharedPersistent.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8HTMLAppletElement.h"
 #include "bindings/core/v8/V8HTMLEmbedElement.h"
 #include "bindings/core/v8/V8HTMLObjectElement.h"
 #include "bindings/core/v8/V8NPObject.h"
 #include "core/frame/UseCounter.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"

 namespace blink {

 namespace {

 template <typename ElementType, typename PropertyType>
 void getScriptableObjectProperty(PropertyType property, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     HTMLPlugInElement* impl = ElementType::toImpl(info.Holder());
     RefPtr<SharedPersistent<v8::Object> > wrapper = impl->pluginWrapper();
     if (!wrapper)
         return;

     v8::Local<v8::Object> instance = wrapper->newLocal(info.GetIsolate());
     if (instance.IsEmpty())
         return;

     TONATIVE_VOID(v8::Local<v8::Value>, value, instance->Get(property));

     // We quit here to allow the binding code to look up general HTMLObjectElement properties
     // if they are not overriden by plugin.
     if (value->IsUndefined())
         return;

     v8SetReturnValue(info, value);
 }

 namespace {
 void callNpObjectSetter(v8::Local<v8::Object> self, v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     npObjectSetNamedProperty(self, name, value, info);
 }

 void callNpObjectSetter(v8::Local<v8::Object> self, uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     npObjectSetIndexedProperty(self, index, value, info);
 }
 }

 template <typename ElementType, typename PropertyType>
 void setScriptableObjectProperty(PropertyType property, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     HTMLPlugInElement* impl = ElementType::toImpl(info.Holder());
     RefPtr<SharedPersistent<v8::Object> > wrapper = impl->pluginWrapper();
     if (!wrapper)
         return;

     v8::Local<v8::Object> instance = wrapper->newLocal(info.GetIsolate());
     if (instance.IsEmpty())
         return;

     // We need to directly call setter on NPObject to be able to detect
     // situation where NPObject notifies it does not possess the property
     // to be able to lookup standard DOM property.
     // This information is lost when retrieving it through v8::Object.
     if (isWrappedNPObject(instance)) {
         callNpObjectSetter(instance, property, value, info);
         return;
     }

     // FIXME: The gTalk pepper plugin is the only plugin to make use of
     // SetProperty and that is being deprecated. This can be removed as soon as
     // it goes away.
     // Call SetProperty on a pepper plugin's scriptable object. Note that we
     // never set the return value here which would indicate that the plugin has
     // intercepted the SetProperty call, which means that the property on the
     // DOM element will also be set. For plugin's that don't intercept the call
     // (all except gTalk) this makes no difference at all. For gTalk the fact
     // that the property on the DOM element also gets set is inconsequential.
     instance->Set(property, value);
 }
 } // namespace

 void V8HTMLAppletElement::namedPropertyGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     getScriptableObjectProperty<V8HTMLAppletElement>(name, info);
 }

 void V8HTMLEmbedElement::namedPropertyGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     getScriptableObjectProperty<V8HTMLEmbedElement>(name, info);
 }

 void V8HTMLObjectElement::namedPropertyGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     getScriptableObjectProperty<V8HTMLObjectElement>(name, info);
 }

 void V8HTMLAppletElement::namedPropertySetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     setScriptableObjectProperty<V8HTMLAppletElement>(name, value, info);
 }

 void V8HTMLEmbedElement::namedPropertySetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     setScriptableObjectProperty<V8HTMLEmbedElement>(name, value, info);
 }

 void V8HTMLObjectElement::namedPropertySetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     setScriptableObjectProperty<V8HTMLObjectElement>(name, value, info);
 }

 void V8HTMLAppletElement::indexedPropertyGetterCustom(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     getScriptableObjectProperty<V8HTMLAppletElement>(index, info);
 }

 void V8HTMLEmbedElement::indexedPropertyGetterCustom(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     getScriptableObjectProperty<V8HTMLEmbedElement>(index, info);
 }

 void V8HTMLObjectElement::indexedPropertyGetterCustom(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     getScriptableObjectProperty<V8HTMLObjectElement>(index, info);
 }

 void V8HTMLAppletElement::indexedPropertySetterCustom(uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     setScriptableObjectProperty<V8HTMLAppletElement>(index, value, info);
 }

 void V8HTMLEmbedElement::indexedPropertySetterCustom(uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     setScriptableObjectProperty<V8HTMLEmbedElement>(index, value, info);
 }

 void V8HTMLObjectElement::indexedPropertySetterCustom(uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     setScriptableObjectProperty<V8HTMLObjectElement>(index, value, info);
 }

 namespace {

 template <typename ElementType>
 void invokeOnScriptableObject(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     HTMLPlugInElement* impl = ElementType::toImpl(info.Holder());
     RefPtr<SharedPersistent<v8::Object> > wrapper = impl->pluginWrapper();
     if (!wrapper)
         return;

     v8::Local<v8::Object> instance = wrapper->newLocal(info.GetIsolate());
     if (instance.IsEmpty())
         return;

     WTF::OwnPtr<v8::Handle<v8::Value>[] > arguments = adoptArrayPtr(new v8::Handle<v8::Value>[info.Length()]);
     for (int i = 0; i < info.Length(); ++i)
         arguments[i] = info[i];

     TONATIVE_VOID(v8::Local<v8::Value>, retVal, instance->CallAsFunction(info.This(), info.Length(), arguments.get()));
     v8SetReturnValue(info, retVal);
 }

 } // namespace

 void V8HTMLAppletElement::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     invokeOnScriptableObject<V8HTMLAppletElement>(info);
     UseCounter::countIfNotPrivateScript(info.GetIsolate(), V8HTMLAppletElement::toImpl(info.Holder())->document(), UseCounter::HTMLAppletElementLegacyCall);
 }

 void V8HTMLEmbedElement::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     invokeOnScriptableObject<V8HTMLEmbedElement>(info);
     UseCounter::countIfNotPrivateScript(info.GetIsolate(), V8HTMLEmbedElement::toImpl(info.Holder())->document(), UseCounter::HTMLEmbedElementLegacyCall);
 }

 void V8HTMLObjectElement::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     invokeOnScriptableObject<V8HTMLObjectElement>(info);
     UseCounter::countIfNotPrivateScript(info.GetIsolate(), V8HTMLObjectElement::toImpl(info.Holder())->document(), UseCounter::HTMLObjectElementLegacyCall);
 }

 } // namespace blink
	/*
	* Copyright (C) 2009 Google Inc. All rights reserved.
	* Copyright (C) 2014 Opera Software ASA. All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions are
	* met:
	*
	* * Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* * Redistributions in binary form must reproduce the above
	* copyright notice, this list of conditions and the following disclaimer
	* in the documentation and/or other materials provided with the
	* distribution.
	* * Neither the name of Google Inc. nor the names of its
	* contributors may be used to endorse or promote products derived from
	* this software without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/

	#include "config.h"

	#include "bindings/core/v8/NPV8Object.h"
	#include "bindings/core/v8/SharedPersistent.h"
	#include "bindings/core/v8/V8Binding.h"
	#include "bindings/core/v8/V8HTMLAppletElement.h"
	#include "bindings/core/v8/V8HTMLEmbedElement.h"
	#include "bindings/core/v8/V8HTMLObjectElement.h"
	#include "bindings/core/v8/V8NPObject.h"
	#include "core/frame/UseCounter.h"
	#include "wtf/OwnPtr.h"
	#include "wtf/PassOwnPtr.h"

	namespace blink {

	namespace {

	template <typename ElementType, typename PropertyType>
	void getScriptableObjectProperty(PropertyType property, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	HTMLPlugInElement* impl = ElementType::toImpl(info.Holder());
	RefPtr<SharedPersistent<v8::Object> > wrapper = impl->pluginWrapper();
	if (!wrapper)
	return;

	v8::Local<v8::Object> instance = wrapper->newLocal(info.GetIsolate());
	if (instance.IsEmpty())
	return;

	TONATIVE_VOID(v8::Local<v8::Value>, value, instance->Get(property));

	// We quit here to allow the binding code to look up general HTMLObjectElement properties
	// if they are not overriden by plugin.
	if (value->IsUndefined())
	return;

	v8SetReturnValue(info, value);
	}

	namespace {
	void callNpObjectSetter(v8::Local<v8::Object> self, v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	npObjectSetNamedProperty(self, name, value, info);
	}

	void callNpObjectSetter(v8::Local<v8::Object> self, uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	npObjectSetIndexedProperty(self, index, value, info);
	}
	}

	template <typename ElementType, typename PropertyType>
	void setScriptableObjectProperty(PropertyType property, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	HTMLPlugInElement* impl = ElementType::toImpl(info.Holder());
	RefPtr<SharedPersistent<v8::Object> > wrapper = impl->pluginWrapper();
	if (!wrapper)
	return;

	v8::Local<v8::Object> instance = wrapper->newLocal(info.GetIsolate());
	if (instance.IsEmpty())
	return;

	// We need to directly call setter on NPObject to be able to detect
	// situation where NPObject notifies it does not possess the property
	// to be able to lookup standard DOM property.
	// This information is lost when retrieving it through v8::Object.
	if (isWrappedNPObject(instance)) {
	callNpObjectSetter(instance, property, value, info);
	return;
	}

	// FIXME: The gTalk pepper plugin is the only plugin to make use of
	// SetProperty and that is being deprecated. This can be removed as soon as
	// it goes away.
	// Call SetProperty on a pepper plugin's scriptable object. Note that we
	// never set the return value here which would indicate that the plugin has
	// intercepted the SetProperty call, which means that the property on the
	// DOM element will also be set. For plugin's that don't intercept the call
	// (all except gTalk) this makes no difference at all. For gTalk the fact
	// that the property on the DOM element also gets set is inconsequential.
	instance->Set(property, value);
	}
	} // namespace

	void V8HTMLAppletElement::namedPropertyGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	getScriptableObjectProperty<V8HTMLAppletElement>(name, info);
	}

	void V8HTMLEmbedElement::namedPropertyGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	getScriptableObjectProperty<V8HTMLEmbedElement>(name, info);
	}

	void V8HTMLObjectElement::namedPropertyGetterCustom(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	getScriptableObjectProperty<V8HTMLObjectElement>(name, info);
	}

	void V8HTMLAppletElement::namedPropertySetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	setScriptableObjectProperty<V8HTMLAppletElement>(name, value, info);
	}

	void V8HTMLEmbedElement::namedPropertySetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	setScriptableObjectProperty<V8HTMLEmbedElement>(name, value, info);
	}

	void V8HTMLObjectElement::namedPropertySetterCustom(v8::Local<v8::String> name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	setScriptableObjectProperty<V8HTMLObjectElement>(name, value, info);
	}

	void V8HTMLAppletElement::indexedPropertyGetterCustom(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	getScriptableObjectProperty<V8HTMLAppletElement>(index, info);
	}

	void V8HTMLEmbedElement::indexedPropertyGetterCustom(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	getScriptableObjectProperty<V8HTMLEmbedElement>(index, info);
	}

	void V8HTMLObjectElement::indexedPropertyGetterCustom(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	getScriptableObjectProperty<V8HTMLObjectElement>(index, info);
	}

	void V8HTMLAppletElement::indexedPropertySetterCustom(uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	setScriptableObjectProperty<V8HTMLAppletElement>(index, value, info);
	}

	void V8HTMLEmbedElement::indexedPropertySetterCustom(uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	setScriptableObjectProperty<V8HTMLEmbedElement>(index, value, info);
	}

	void V8HTMLObjectElement::indexedPropertySetterCustom(uint32_t index, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info)
	{
	setScriptableObjectProperty<V8HTMLObjectElement>(index, value, info);
	}

	namespace {

	template <typename ElementType>
	void invokeOnScriptableObject(const v8::FunctionCallbackInfo<v8::Value>& info)
	{
	HTMLPlugInElement* impl = ElementType::toImpl(info.Holder());
	RefPtr<SharedPersistent<v8::Object> > wrapper = impl->pluginWrapper();
	if (!wrapper)
	return;

	v8::Local<v8::Object> instance = wrapper->newLocal(info.GetIsolate());
	if (instance.IsEmpty())
	return;

	WTF::OwnPtr<v8::Handle<v8::Value>[] > arguments = adoptArrayPtr(new v8::Handle<v8::Value>[info.Length()]);
	for (int i = 0; i < info.Length(); ++i)
	arguments[i] = info[i];

	TONATIVE_VOID(v8::Local<v8::Value>, retVal, instance->CallAsFunction(info.This(), info.Length(), arguments.get()));
	v8SetReturnValue(info, retVal);
	}

	} // namespace

	void V8HTMLAppletElement::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
	{
	invokeOnScriptableObject<V8HTMLAppletElement>(info);
	UseCounter::countIfNotPrivateScript(info.GetIsolate(), V8HTMLAppletElement::toImpl(info.Holder())->document(), UseCounter::HTMLAppletElementLegacyCall);
	}

	void V8HTMLEmbedElement::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
	{
	invokeOnScriptableObject<V8HTMLEmbedElement>(info);
	UseCounter::countIfNotPrivateScript(info.GetIsolate(), V8HTMLEmbedElement::toImpl(info.Holder())->document(), UseCounter::HTMLEmbedElementLegacyCall);
	}

	void V8HTMLObjectElement::legacyCallCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
	{
	invokeOnScriptableObject<V8HTMLObjectElement>(info);
	UseCounter::countIfNotPrivateScript(info.GetIsolate(), V8HTMLObjectElement::toImpl(info.Holder())->document(), UseCounter::HTMLObjectElementLegacyCall);
	}

	} // namespace blink