gecko/dom/plugins/PluginScriptableObjectChild.cpp

1100 lines
30 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=2 et :
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Plugin App.
*
* The Initial Developer of the Original Code is
* Ben Turner <bent.mozilla@gmail.com>
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "PluginScriptableObjectChild.h"
#include "PluginScriptableObjectUtils.h"
#include "PluginIdentifierChild.h"
using namespace mozilla::plugins;
// static
NPObject*
PluginScriptableObjectChild::ScriptableAllocate(NPP aInstance,
NPClass* aClass)
{
AssertPluginThread();
if (aClass != GetClass()) {
NS_RUNTIMEABORT("Huh?! Wrong class!");
}
return new ChildNPObject();
}
// static
void
PluginScriptableObjectChild::ScriptableInvalidate(NPObject* aObject)
{
AssertPluginThread();
if (aObject->_class != GetClass()) {
NS_RUNTIMEABORT("Don't know what kind of object this is!");
}
ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
if (object->invalidated) {
// This can happen more than once, and is just fine.
return;
}
object->invalidated = true;
}
// static
void
PluginScriptableObjectChild::ScriptableDeallocate(NPObject* aObject)
{
AssertPluginThread();
if (aObject->_class != GetClass()) {
NS_RUNTIMEABORT("Don't know what kind of object this is!");
}
ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
PluginScriptableObjectChild* actor = object->parent;
if (actor) {
NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
actor->DropNPObject();
}
delete object;
}
// static
bool
PluginScriptableObjectChild::ScriptableHasMethod(NPObject* aObject,
NPIdentifier aName)
{
AssertPluginThread();
if (aObject->_class != GetClass()) {
NS_RUNTIMEABORT("Don't know what kind of object this is!");
}
ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
if (object->invalidated) {
NS_WARNING("Calling method on an invalidated object!");
return false;
}
ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
NS_ASSERTION(actor, "This shouldn't ever be null!");
NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
bool result;
actor->CallHasMethod(static_cast<PPluginIdentifierChild*>(aName), &result);
return result;
}
// static
bool
PluginScriptableObjectChild::ScriptableInvoke(NPObject* aObject,
NPIdentifier aName,
const NPVariant* aArgs,
uint32_t aArgCount,
NPVariant* aResult)
{
AssertPluginThread();
if (aObject->_class != GetClass()) {
NS_RUNTIMEABORT("Don't know what kind of object this is!");
}
ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
if (object->invalidated) {
NS_WARNING("Calling method on an invalidated object!");
return false;
}
ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
NS_ASSERTION(actor, "This shouldn't ever be null!");
NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
ProtectedVariantArray args(aArgs, aArgCount, actor->GetInstance());
if (!args.IsOk()) {
NS_ERROR("Failed to convert arguments!");
return false;
}
Variant remoteResult;
bool success;
actor->CallInvoke(static_cast<PPluginIdentifierChild*>(aName), args,
&remoteResult, &success);
if (!success) {
return false;
}
ConvertToVariant(remoteResult, *aResult);
return true;
}
// static
bool
PluginScriptableObjectChild::ScriptableInvokeDefault(NPObject* aObject,
const NPVariant* aArgs,
uint32_t aArgCount,
NPVariant* aResult)
{
AssertPluginThread();
if (aObject->_class != GetClass()) {
NS_RUNTIMEABORT("Don't know what kind of object this is!");
}
ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
if (object->invalidated) {
NS_WARNING("Calling method on an invalidated object!");
return false;
}
ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
NS_ASSERTION(actor, "This shouldn't ever be null!");
NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
ProtectedVariantArray args(aArgs, aArgCount, actor->GetInstance());
if (!args.IsOk()) {
NS_ERROR("Failed to convert arguments!");
return false;
}
Variant remoteResult;
bool success;
actor->CallInvokeDefault(args, &remoteResult, &success);
if (!success) {
return false;
}
ConvertToVariant(remoteResult, *aResult);
return true;
}
// static
bool
PluginScriptableObjectChild::ScriptableHasProperty(NPObject* aObject,
NPIdentifier aName)
{
AssertPluginThread();
if (aObject->_class != GetClass()) {
NS_RUNTIMEABORT("Don't know what kind of object this is!");
}
ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
if (object->invalidated) {
NS_WARNING("Calling method on an invalidated object!");
return false;
}
ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
NS_ASSERTION(actor, "This shouldn't ever be null!");
NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
bool result;
actor->CallHasProperty(static_cast<PPluginIdentifierChild*>(aName), &result);
return result;
}
// static
bool
PluginScriptableObjectChild::ScriptableGetProperty(NPObject* aObject,
NPIdentifier aName,
NPVariant* aResult)
{
AssertPluginThread();
if (aObject->_class != GetClass()) {
NS_RUNTIMEABORT("Don't know what kind of object this is!");
}
ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
if (object->invalidated) {
NS_WARNING("Calling method on an invalidated object!");
return false;
}
ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
NS_ASSERTION(actor, "This shouldn't ever be null!");
NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
Variant result;
bool success;
actor->CallGetParentProperty(static_cast<PPluginIdentifierChild*>(aName),
&result, &success);
if (!success) {
return false;
}
ConvertToVariant(result, *aResult);
return true;
}
// static
bool
PluginScriptableObjectChild::ScriptableSetProperty(NPObject* aObject,
NPIdentifier aName,
const NPVariant* aValue)
{
AssertPluginThread();
if (aObject->_class != GetClass()) {
NS_RUNTIMEABORT("Don't know what kind of object this is!");
}
ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
if (object->invalidated) {
NS_WARNING("Calling method on an invalidated object!");
return false;
}
ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
NS_ASSERTION(actor, "This shouldn't ever be null!");
NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
ProtectedVariant value(*aValue, actor->GetInstance());
if (!value.IsOk()) {
NS_WARNING("Failed to convert variant!");
return false;
}
bool success;
actor->CallSetProperty(static_cast<PPluginIdentifierChild*>(aName), value,
&success);
return success;
}
// static
bool
PluginScriptableObjectChild::ScriptableRemoveProperty(NPObject* aObject,
NPIdentifier aName)
{
AssertPluginThread();
if (aObject->_class != GetClass()) {
NS_RUNTIMEABORT("Don't know what kind of object this is!");
}
ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
if (object->invalidated) {
NS_WARNING("Calling method on an invalidated object!");
return false;
}
ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
NS_ASSERTION(actor, "This shouldn't ever be null!");
NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
bool success;
actor->CallRemoveProperty(static_cast<PPluginIdentifierChild*>(aName),
&success);
return success;
}
// static
bool
PluginScriptableObjectChild::ScriptableEnumerate(NPObject* aObject,
NPIdentifier** aIdentifiers,
uint32_t* aCount)
{
AssertPluginThread();
if (aObject->_class != GetClass()) {
NS_RUNTIMEABORT("Don't know what kind of object this is!");
}
ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
if (object->invalidated) {
NS_WARNING("Calling method on an invalidated object!");
return false;
}
ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
NS_ASSERTION(actor, "This shouldn't ever be null!");
NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
AutoInfallibleTArray<PPluginIdentifierChild*, 10> identifiers;
bool success;
actor->CallEnumerate(&identifiers, &success);
if (!success) {
return false;
}
*aCount = identifiers.Length();
if (!*aCount) {
*aIdentifiers = nsnull;
return true;
}
*aIdentifiers = reinterpret_cast<NPIdentifier*>(
PluginModuleChild::sBrowserFuncs.memalloc(*aCount * sizeof(NPIdentifier)));
if (!*aIdentifiers) {
NS_ERROR("Out of memory!");
return false;
}
for (PRUint32 index = 0; index < *aCount; index++) {
(*aIdentifiers)[index] =
static_cast<PPluginIdentifierChild*>(identifiers[index]);
}
return true;
}
// static
bool
PluginScriptableObjectChild::ScriptableConstruct(NPObject* aObject,
const NPVariant* aArgs,
uint32_t aArgCount,
NPVariant* aResult)
{
AssertPluginThread();
if (aObject->_class != GetClass()) {
NS_RUNTIMEABORT("Don't know what kind of object this is!");
}
ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
if (object->invalidated) {
NS_WARNING("Calling method on an invalidated object!");
return false;
}
ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
NS_ASSERTION(actor, "This shouldn't ever be null!");
NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
ProtectedVariantArray args(aArgs, aArgCount, actor->GetInstance());
if (!args.IsOk()) {
NS_ERROR("Failed to convert arguments!");
return false;
}
Variant remoteResult;
bool success;
actor->CallConstruct(args, &remoteResult, &success);
if (!success) {
return false;
}
ConvertToVariant(remoteResult, *aResult);
return true;
}
const NPClass PluginScriptableObjectChild::sNPClass = {
NP_CLASS_STRUCT_VERSION,
PluginScriptableObjectChild::ScriptableAllocate,
PluginScriptableObjectChild::ScriptableDeallocate,
PluginScriptableObjectChild::ScriptableInvalidate,
PluginScriptableObjectChild::ScriptableHasMethod,
PluginScriptableObjectChild::ScriptableInvoke,
PluginScriptableObjectChild::ScriptableInvokeDefault,
PluginScriptableObjectChild::ScriptableHasProperty,
PluginScriptableObjectChild::ScriptableGetProperty,
PluginScriptableObjectChild::ScriptableSetProperty,
PluginScriptableObjectChild::ScriptableRemoveProperty,
PluginScriptableObjectChild::ScriptableEnumerate,
PluginScriptableObjectChild::ScriptableConstruct
};
PluginScriptableObjectChild::PluginScriptableObjectChild(
ScriptableObjectType aType)
: mInstance(nsnull),
mObject(nsnull),
mInvalidated(false),
mProtectCount(0),
mType(aType)
{
AssertPluginThread();
}
PluginScriptableObjectChild::~PluginScriptableObjectChild()
{
AssertPluginThread();
if (mObject) {
PluginModuleChild::current()->UnregisterActorForNPObject(mObject);
if (mObject->_class == GetClass()) {
NS_ASSERTION(mType == Proxy, "Wrong type!");
static_cast<ChildNPObject*>(mObject)->parent = nsnull;
}
else {
NS_ASSERTION(mType == LocalObject, "Wrong type!");
PluginModuleChild::sBrowserFuncs.releaseobject(mObject);
}
}
}
void
PluginScriptableObjectChild::InitializeProxy()
{
AssertPluginThread();
NS_ASSERTION(mType == Proxy, "Bad type!");
NS_ASSERTION(!mObject, "Calling Initialize more than once!");
NS_ASSERTION(!mInvalidated, "Already invalidated?!");
mInstance = static_cast<PluginInstanceChild*>(Manager());
NS_ASSERTION(mInstance, "Null manager?!");
NPObject* object = CreateProxyObject();
NS_ASSERTION(object, "Failed to create object!");
if (!PluginModuleChild::current()->RegisterActorForNPObject(object, this)) {
NS_ERROR("Out of memory?");
}
mObject = object;
}
void
PluginScriptableObjectChild::InitializeLocal(NPObject* aObject)
{
AssertPluginThread();
NS_ASSERTION(mType == LocalObject, "Bad type!");
NS_ASSERTION(!mObject, "Calling Initialize more than once!");
NS_ASSERTION(!mInvalidated, "Already invalidated?!");
mInstance = static_cast<PluginInstanceChild*>(Manager());
NS_ASSERTION(mInstance, "Null manager?!");
PluginModuleChild::sBrowserFuncs.retainobject(aObject);
NS_ASSERTION(!mProtectCount, "Should be zero!");
mProtectCount++;
if (!PluginModuleChild::current()->RegisterActorForNPObject(aObject, this)) {
NS_ERROR("Out of memory?");
}
mObject = aObject;
}
NPObject*
PluginScriptableObjectChild::CreateProxyObject()
{
NS_ASSERTION(mInstance, "Must have an instance!");
NS_ASSERTION(mType == Proxy, "Shouldn't call this for non-proxy object!");
NPClass* proxyClass = const_cast<NPClass*>(GetClass());
NPObject* npobject =
PluginModuleChild::sBrowserFuncs.createobject(mInstance->GetNPP(),
proxyClass);
NS_ASSERTION(npobject, "Failed to create object?!");
NS_ASSERTION(npobject->_class == GetClass(), "Wrong kind of object!");
NS_ASSERTION(npobject->referenceCount == 1, "Some kind of live object!");
ChildNPObject* object = static_cast<ChildNPObject*>(npobject);
NS_ASSERTION(!object->invalidated, "Bad object!");
NS_ASSERTION(!object->parent, "Bad object!");
// We don't want to have the actor own this object but rather let the object
// own this actor. Set the reference count to 0 here so that when the object
// dies we will send the destructor message to the child.
object->referenceCount = 0;
NS_LOG_RELEASE(object, 0, "NPObject");
object->parent = const_cast<PluginScriptableObjectChild*>(this);
return object;
}
bool
PluginScriptableObjectChild::ResurrectProxyObject()
{
NS_ASSERTION(mInstance, "Must have an instance already!");
NS_ASSERTION(!mObject, "Should not have an object already!");
NS_ASSERTION(mType == Proxy, "Shouldn't call this for non-proxy object!");
NPObject* object = CreateProxyObject();
if (!object) {
NS_WARNING("Failed to create object!");
return false;
}
InitializeProxy();
NS_ASSERTION(mObject, "Initialize failed!");
SendProtect();
return true;
}
NPObject*
PluginScriptableObjectChild::GetObject(bool aCanResurrect)
{
if (!mObject && aCanResurrect && !ResurrectProxyObject()) {
NS_ERROR("Null object!");
return nsnull;
}
return mObject;
}
void
PluginScriptableObjectChild::Protect()
{
NS_ASSERTION(mObject, "No object!");
NS_ASSERTION(mProtectCount >= 0, "Negative retain count?!");
if (mType == LocalObject) {
++mProtectCount;
}
}
void
PluginScriptableObjectChild::Unprotect()
{
NS_ASSERTION(mObject, "Bad state!");
NS_ASSERTION(mProtectCount >= 0, "Negative retain count?!");
if (mType == LocalObject) {
if (--mProtectCount == 0) {
PluginScriptableObjectChild::Send__delete__(this);
}
}
}
void
PluginScriptableObjectChild::DropNPObject()
{
NS_ASSERTION(mObject, "Invalidated object!");
NS_ASSERTION(mObject->_class == GetClass(), "Wrong type of object!");
NS_ASSERTION(mType == Proxy, "Shouldn't call this for non-proxy object!");
// We think we're about to be deleted, but we could be racing with the other
// process.
PluginModuleChild::current()->UnregisterActorForNPObject(mObject);
mObject = nsnull;
SendUnprotect();
}
void
PluginScriptableObjectChild::NPObjectDestroyed()
{
NS_ASSERTION(LocalObject == mType,
"ScriptableDeallocate should have handled this for proxies");
mInvalidated = true;
mObject = NULL;
}
bool
PluginScriptableObjectChild::AnswerInvalidate()
{
AssertPluginThread();
if (mInvalidated) {
return true;
}
mInvalidated = true;
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
NS_ASSERTION(mType == LocalObject, "Bad type!");
if (mObject->_class && mObject->_class->invalidate) {
mObject->_class->invalidate(mObject);
}
Unprotect();
return true;
}
bool
PluginScriptableObjectChild::AnswerHasMethod(PPluginIdentifierChild* aId,
bool* aHasMethod)
{
AssertPluginThread();
if (mInvalidated) {
NS_WARNING("Calling AnswerHasMethod with an invalidated object!");
*aHasMethod = false;
return true;
}
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
NS_ASSERTION(mType == LocalObject, "Bad type!");
if (!(mObject->_class && mObject->_class->hasMethod)) {
*aHasMethod = false;
return true;
}
PluginIdentifierChild* id = static_cast<PluginIdentifierChild*>(aId);
*aHasMethod = mObject->_class->hasMethod(mObject, id->ToNPIdentifier());
return true;
}
bool
PluginScriptableObjectChild::AnswerInvoke(PPluginIdentifierChild* aId,
const InfallibleTArray<Variant>& aArgs,
Variant* aResult,
bool* aSuccess)
{
AssertPluginThread();
if (mInvalidated) {
NS_WARNING("Calling AnswerInvoke with an invalidated object!");
*aResult = void_t();
*aSuccess = false;
return true;
}
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
NS_ASSERTION(mType == LocalObject, "Bad type!");
if (!(mObject->_class && mObject->_class->invoke)) {
*aResult = void_t();
*aSuccess = false;
return true;
}
nsAutoTArray<NPVariant, 10> convertedArgs;
PRUint32 argCount = aArgs.Length();
if (!convertedArgs.SetLength(argCount)) {
*aResult = void_t();
*aSuccess = false;
return true;
}
for (PRUint32 index = 0; index < argCount; index++) {
ConvertToVariant(aArgs[index], convertedArgs[index]);
}
NPVariant result;
VOID_TO_NPVARIANT(result);
PluginIdentifierChild* id = static_cast<PluginIdentifierChild*>(aId);
bool success = mObject->_class->invoke(mObject, id->ToNPIdentifier(),
convertedArgs.Elements(), argCount,
&result);
for (PRUint32 index = 0; index < argCount; index++) {
PluginModuleChild::sBrowserFuncs.releasevariantvalue(&convertedArgs[index]);
}
if (!success) {
*aResult = void_t();
*aSuccess = false;
return true;
}
Variant convertedResult;
success = ConvertToRemoteVariant(result, convertedResult, GetInstance(),
false);
DeferNPVariantLastRelease(&PluginModuleChild::sBrowserFuncs, &result);
if (!success) {
*aResult = void_t();
*aSuccess = false;
return true;
}
*aSuccess = true;
*aResult = convertedResult;
return true;
}
bool
PluginScriptableObjectChild::AnswerInvokeDefault(const InfallibleTArray<Variant>& aArgs,
Variant* aResult,
bool* aSuccess)
{
AssertPluginThread();
if (mInvalidated) {
NS_WARNING("Calling AnswerInvokeDefault with an invalidated object!");
*aResult = void_t();
*aSuccess = false;
return true;
}
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
NS_ASSERTION(mType == LocalObject, "Bad type!");
if (!(mObject->_class && mObject->_class->invokeDefault)) {
*aResult = void_t();
*aSuccess = false;
return true;
}
nsAutoTArray<NPVariant, 10> convertedArgs;
PRUint32 argCount = aArgs.Length();
if (!convertedArgs.SetLength(argCount)) {
*aResult = void_t();
*aSuccess = false;
return true;
}
for (PRUint32 index = 0; index < argCount; index++) {
ConvertToVariant(aArgs[index], convertedArgs[index]);
}
NPVariant result;
VOID_TO_NPVARIANT(result);
bool success = mObject->_class->invokeDefault(mObject,
convertedArgs.Elements(),
argCount, &result);
for (PRUint32 index = 0; index < argCount; index++) {
PluginModuleChild::sBrowserFuncs.releasevariantvalue(&convertedArgs[index]);
}
if (!success) {
*aResult = void_t();
*aSuccess = false;
return true;
}
Variant convertedResult;
success = ConvertToRemoteVariant(result, convertedResult, GetInstance(),
false);
DeferNPVariantLastRelease(&PluginModuleChild::sBrowserFuncs, &result);
if (!success) {
*aResult = void_t();
*aSuccess = false;
return true;
}
*aResult = convertedResult;
*aSuccess = true;
return true;
}
bool
PluginScriptableObjectChild::AnswerHasProperty(PPluginIdentifierChild* aId,
bool* aHasProperty)
{
AssertPluginThread();
if (mInvalidated) {
NS_WARNING("Calling AnswerHasProperty with an invalidated object!");
*aHasProperty = false;
return true;
}
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
NS_ASSERTION(mType == LocalObject, "Bad type!");
if (!(mObject->_class && mObject->_class->hasProperty)) {
*aHasProperty = false;
return true;
}
PluginIdentifierChild* id = static_cast<PluginIdentifierChild*>(aId);
*aHasProperty = mObject->_class->hasProperty(mObject, id->ToNPIdentifier());
return true;
}
bool
PluginScriptableObjectChild::AnswerGetChildProperty(PPluginIdentifierChild* aId,
bool* aHasProperty,
bool* aHasMethod,
Variant* aResult,
bool* aSuccess)
{
AssertPluginThread();
*aHasProperty = *aHasMethod = *aSuccess = false;
*aResult = void_t();
if (mInvalidated) {
NS_WARNING("Calling AnswerGetProperty with an invalidated object!");
return true;
}
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
NS_ASSERTION(mType == LocalObject, "Bad type!");
if (!(mObject->_class && mObject->_class->hasProperty &&
mObject->_class->hasMethod && mObject->_class->getProperty)) {
return true;
}
NPIdentifier id = static_cast<PluginIdentifierChild*>(aId)->ToNPIdentifier();
*aHasProperty = mObject->_class->hasProperty(mObject, id);
*aHasMethod = mObject->_class->hasMethod(mObject, id);
if (*aHasProperty) {
NPVariant result;
VOID_TO_NPVARIANT(result);
if (!mObject->_class->getProperty(mObject, id, &result)) {
return true;
}
Variant converted;
if ((*aSuccess = ConvertToRemoteVariant(result, converted, GetInstance(),
false))) {
DeferNPVariantLastRelease(&PluginModuleChild::sBrowserFuncs, &result);
*aResult = converted;
}
}
return true;
}
bool
PluginScriptableObjectChild::AnswerSetProperty(PPluginIdentifierChild* aId,
const Variant& aValue,
bool* aSuccess)
{
AssertPluginThread();
if (mInvalidated) {
NS_WARNING("Calling AnswerSetProperty with an invalidated object!");
*aSuccess = false;
return true;
}
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
NS_ASSERTION(mType == LocalObject, "Bad type!");
if (!(mObject->_class && mObject->_class->hasProperty &&
mObject->_class->setProperty)) {
*aSuccess = false;
return true;
}
NPIdentifier id = static_cast<PluginIdentifierChild*>(aId)->ToNPIdentifier();
if (!mObject->_class->hasProperty(mObject, id)) {
*aSuccess = false;
return true;
}
NPVariant converted;
ConvertToVariant(aValue, converted);
if ((*aSuccess = mObject->_class->setProperty(mObject, id, &converted))) {
PluginModuleChild::sBrowserFuncs.releasevariantvalue(&converted);
}
return true;
}
bool
PluginScriptableObjectChild::AnswerRemoveProperty(PPluginIdentifierChild* aId,
bool* aSuccess)
{
AssertPluginThread();
if (mInvalidated) {
NS_WARNING("Calling AnswerRemoveProperty with an invalidated object!");
*aSuccess = false;
return true;
}
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
NS_ASSERTION(mType == LocalObject, "Bad type!");
if (!(mObject->_class && mObject->_class->hasProperty &&
mObject->_class->removeProperty)) {
*aSuccess = false;
return true;
}
NPIdentifier id = static_cast<PluginIdentifierChild*>(aId)->ToNPIdentifier();
*aSuccess = mObject->_class->hasProperty(mObject, id) ?
mObject->_class->removeProperty(mObject, id) :
true;
return true;
}
bool
PluginScriptableObjectChild::AnswerEnumerate(InfallibleTArray<PPluginIdentifierChild*>* aProperties,
bool* aSuccess)
{
AssertPluginThread();
if (mInvalidated) {
NS_WARNING("Calling AnswerEnumerate with an invalidated object!");
*aSuccess = false;
return true;
}
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
NS_ASSERTION(mType == LocalObject, "Bad type!");
if (!(mObject->_class && mObject->_class->enumerate)) {
*aSuccess = false;
return true;
}
NPIdentifier* ids;
uint32_t idCount;
if (!mObject->_class->enumerate(mObject, &ids, &idCount)) {
*aSuccess = false;
return true;
}
if (!aProperties->SetCapacity(idCount)) {
PluginModuleChild::sBrowserFuncs.memfree(ids);
*aSuccess = false;
return true;
}
for (uint32_t index = 0; index < idCount; index++) {
PluginIdentifierChild* id = static_cast<PluginIdentifierChild*>(ids[index]);
aProperties->AppendElement(id);
}
PluginModuleChild::sBrowserFuncs.memfree(ids);
*aSuccess = true;
return true;
}
bool
PluginScriptableObjectChild::AnswerConstruct(const InfallibleTArray<Variant>& aArgs,
Variant* aResult,
bool* aSuccess)
{
AssertPluginThread();
if (mInvalidated) {
NS_WARNING("Calling AnswerConstruct with an invalidated object!");
*aResult = void_t();
*aSuccess = false;
return true;
}
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
NS_ASSERTION(mType == LocalObject, "Bad type!");
if (!(mObject->_class && mObject->_class->construct)) {
*aResult = void_t();
*aSuccess = false;
return true;
}
nsAutoTArray<NPVariant, 10> convertedArgs;
PRUint32 argCount = aArgs.Length();
if (!convertedArgs.SetLength(argCount)) {
*aResult = void_t();
*aSuccess = false;
return true;
}
for (PRUint32 index = 0; index < argCount; index++) {
ConvertToVariant(aArgs[index], convertedArgs[index]);
}
NPVariant result;
VOID_TO_NPVARIANT(result);
bool success = mObject->_class->construct(mObject, convertedArgs.Elements(),
argCount, &result);
for (PRUint32 index = 0; index < argCount; index++) {
PluginModuleChild::sBrowserFuncs.releasevariantvalue(&convertedArgs[index]);
}
if (!success) {
*aResult = void_t();
*aSuccess = false;
return true;
}
Variant convertedResult;
success = ConvertToRemoteVariant(result, convertedResult, GetInstance(),
false);
DeferNPVariantLastRelease(&PluginModuleChild::sBrowserFuncs, &result);
if (!success) {
*aResult = void_t();
*aSuccess = false;
return true;
}
*aResult = convertedResult;
*aSuccess = true;
return true;
}
bool
PluginScriptableObjectChild::RecvProtect()
{
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
NS_ASSERTION(mType == LocalObject, "Bad type!");
Protect();
return true;
}
bool
PluginScriptableObjectChild::RecvUnprotect()
{
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
NS_ASSERTION(mType == LocalObject, "Bad type!");
Unprotect();
return true;
}
bool
PluginScriptableObjectChild::Evaluate(NPString* aScript,
NPVariant* aResult)
{
nsDependentCString script("");
if (aScript->UTF8Characters && aScript->UTF8Length) {
script.Rebind(aScript->UTF8Characters, aScript->UTF8Length);
}
bool success;
Variant result;
CallNPN_Evaluate(script, &result, &success);
if (!success) {
return false;
}
ConvertToVariant(result, *aResult);
return true;
}