зеркало из https://github.com/mozilla/gecko-dev.git
1299 строки
35 KiB
C++
1299 строки
35 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=2 et :
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "PluginScriptableObjectChild.h"
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#include "PluginScriptableObjectUtils.h"
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#include "mozilla/plugins/PluginTypes.h"
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using namespace mozilla::plugins;
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/**
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* NPIdentifiers in the plugin process use a tagged representation. The low bit
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* stores the tag. If it's zero, the identifier is a string, and the value is a
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* pointer to a StoredIdentifier. If the tag bit is 1, then the rest of the
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* NPIdentifier value is the integer itself. Like the JSAPI, we require that all
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* integers stored in NPIdentifier be non-negative.
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*
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* String identifiers are stored in the sIdentifiers hashtable to ensure
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* uniqueness. The lifetime of these identifiers is only as long as the incoming
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* IPC call from the chrome process. If the plugin wants to retain an
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* identifier, it needs to call NPN_GetStringIdentifier, which causes the
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* mPermanent flag to be set on the identifier. When this flag is set, the
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* identifier is saved until the plugin process exits.
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*
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* The StackIdentifier RAII class is used to manage ownership of
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* identifiers. Any identifier obtained from this class should not be used
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* outside its scope, except when the MakePermanent() method has been called on
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* it.
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*
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* The lifetime of an NPIdentifier in the plugin process is totally divorced
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* from the lifetime of an NPIdentifier in the chrome process (where an
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* NPIdentifier is stored as a jsid). The JS GC in the chrome process is able to
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* trace through the entire heap, unlike in the plugin process, so there is no
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* reason to retain identifiers there.
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*/
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PluginScriptableObjectChild::IdentifierTable PluginScriptableObjectChild::sIdentifiers;
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/* static */ PluginScriptableObjectChild::StoredIdentifier*
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PluginScriptableObjectChild::HashIdentifier(const nsCString& aIdentifier)
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{
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StoredIdentifier* stored = sIdentifiers.Get(aIdentifier).get();
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if (stored) {
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return stored;
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}
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stored = new StoredIdentifier(aIdentifier);
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sIdentifiers.Put(aIdentifier, stored);
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return stored;
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}
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/* static */ void
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PluginScriptableObjectChild::UnhashIdentifier(StoredIdentifier* aStored)
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{
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MOZ_ASSERT(sIdentifiers.Get(aStored->mIdentifier));
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sIdentifiers.Remove(aStored->mIdentifier);
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}
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/* static */ void
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PluginScriptableObjectChild::ClearIdentifiers()
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{
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sIdentifiers.Clear();
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}
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PluginScriptableObjectChild::StackIdentifier::StackIdentifier(const PluginIdentifier& aIdentifier)
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: mIdentifier(aIdentifier),
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mStored(nullptr)
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{
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if (aIdentifier.type() == PluginIdentifier::TnsCString) {
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mStored = PluginScriptableObjectChild::HashIdentifier(mIdentifier.get_nsCString());
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}
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}
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PluginScriptableObjectChild::StackIdentifier::StackIdentifier(NPIdentifier aIdentifier)
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: mStored(nullptr)
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{
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uintptr_t bits = reinterpret_cast<uintptr_t>(aIdentifier);
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if (bits & 1) {
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int32_t num = int32_t(bits >> 1);
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mIdentifier = PluginIdentifier(num);
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} else {
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mStored = static_cast<StoredIdentifier*>(aIdentifier);
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mIdentifier = mStored->mIdentifier;
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}
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}
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PluginScriptableObjectChild::StackIdentifier::~StackIdentifier()
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{
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if (!mStored) {
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return;
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}
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// Each StackIdentifier owns one reference to its StoredIdentifier. In
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// addition, the sIdentifiers table owns a reference. If mPermanent is false
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// and sIdentifiers has the last reference, then we want to remove the
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// StoredIdentifier from the table (and destroy it).
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StoredIdentifier *stored = mStored;
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mStored = nullptr;
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if (stored->mRefCnt == 1 && !stored->mPermanent) {
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PluginScriptableObjectChild::UnhashIdentifier(stored);
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}
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}
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NPIdentifier
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PluginScriptableObjectChild::StackIdentifier::ToNPIdentifier() const
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{
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if (mStored) {
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MOZ_ASSERT(mIdentifier.type() == PluginIdentifier::TnsCString);
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MOZ_ASSERT((reinterpret_cast<uintptr_t>(mStored.get()) & 1) == 0);
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return mStored;
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}
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int32_t num = mIdentifier.get_int32_t();
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// The JS engine imposes this condition on int32s in jsids, so we assume it.
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MOZ_ASSERT(num >= 0);
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return reinterpret_cast<NPIdentifier>((num << 1) | 1);
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}
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static PluginIdentifier
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FromNPIdentifier(NPIdentifier aIdentifier)
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{
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PluginScriptableObjectChild::StackIdentifier stack(aIdentifier);
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return stack.GetIdentifier();
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}
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// static
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NPObject*
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PluginScriptableObjectChild::ScriptableAllocate(NPP aInstance,
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NPClass* aClass)
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{
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AssertPluginThread();
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if (aClass != GetClass()) {
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MOZ_CRASH("Huh?! Wrong class!");
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}
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return new ChildNPObject();
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}
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// static
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void
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PluginScriptableObjectChild::ScriptableInvalidate(NPObject* aObject)
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{
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AssertPluginThread();
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if (aObject->_class != GetClass()) {
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MOZ_CRASH("Don't know what kind of object this is!");
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}
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ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
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if (object->invalidated) {
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// This can happen more than once, and is just fine.
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return;
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}
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object->invalidated = true;
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}
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// static
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void
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PluginScriptableObjectChild::ScriptableDeallocate(NPObject* aObject)
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{
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AssertPluginThread();
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if (aObject->_class != GetClass()) {
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MOZ_CRASH("Don't know what kind of object this is!");
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}
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ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
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PluginScriptableObjectChild* actor = object->parent;
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if (actor) {
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NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
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actor->DropNPObject();
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}
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delete object;
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}
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// static
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bool
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PluginScriptableObjectChild::ScriptableHasMethod(NPObject* aObject,
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NPIdentifier aName)
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{
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AssertPluginThread();
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if (aObject->_class != GetClass()) {
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MOZ_CRASH("Don't know what kind of object this is!");
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}
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ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
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if (object->invalidated) {
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NS_WARNING("Calling method on an invalidated object!");
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return false;
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}
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ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
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NS_ASSERTION(actor, "This shouldn't ever be null!");
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NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
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bool result;
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actor->CallHasMethod(FromNPIdentifier(aName), &result);
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return result;
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}
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// static
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bool
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PluginScriptableObjectChild::ScriptableInvoke(NPObject* aObject,
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NPIdentifier aName,
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const NPVariant* aArgs,
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uint32_t aArgCount,
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NPVariant* aResult)
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{
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AssertPluginThread();
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if (aObject->_class != GetClass()) {
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MOZ_CRASH("Don't know what kind of object this is!");
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}
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ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
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if (object->invalidated) {
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NS_WARNING("Calling method on an invalidated object!");
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return false;
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}
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ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
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NS_ASSERTION(actor, "This shouldn't ever be null!");
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NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
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ProtectedVariantArray args(aArgs, aArgCount, actor->GetInstance());
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if (!args.IsOk()) {
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NS_ERROR("Failed to convert arguments!");
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return false;
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}
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Variant remoteResult;
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bool success;
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actor->CallInvoke(FromNPIdentifier(aName), args,
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&remoteResult, &success);
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if (!success) {
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return false;
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}
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ConvertToVariant(remoteResult, *aResult);
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return true;
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}
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// static
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bool
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PluginScriptableObjectChild::ScriptableInvokeDefault(NPObject* aObject,
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const NPVariant* aArgs,
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uint32_t aArgCount,
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NPVariant* aResult)
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{
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AssertPluginThread();
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if (aObject->_class != GetClass()) {
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MOZ_CRASH("Don't know what kind of object this is!");
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}
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ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
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if (object->invalidated) {
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NS_WARNING("Calling method on an invalidated object!");
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return false;
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}
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ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
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NS_ASSERTION(actor, "This shouldn't ever be null!");
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NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
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ProtectedVariantArray args(aArgs, aArgCount, actor->GetInstance());
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if (!args.IsOk()) {
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NS_ERROR("Failed to convert arguments!");
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return false;
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}
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Variant remoteResult;
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bool success;
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actor->CallInvokeDefault(args, &remoteResult, &success);
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if (!success) {
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return false;
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}
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ConvertToVariant(remoteResult, *aResult);
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return true;
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}
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// static
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bool
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PluginScriptableObjectChild::ScriptableHasProperty(NPObject* aObject,
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NPIdentifier aName)
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{
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AssertPluginThread();
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if (aObject->_class != GetClass()) {
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MOZ_CRASH("Don't know what kind of object this is!");
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}
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ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
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if (object->invalidated) {
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NS_WARNING("Calling method on an invalidated object!");
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return false;
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}
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ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
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NS_ASSERTION(actor, "This shouldn't ever be null!");
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NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
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bool result;
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actor->CallHasProperty(FromNPIdentifier(aName), &result);
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return result;
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}
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// static
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bool
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PluginScriptableObjectChild::ScriptableGetProperty(NPObject* aObject,
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NPIdentifier aName,
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NPVariant* aResult)
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{
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AssertPluginThread();
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if (aObject->_class != GetClass()) {
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MOZ_CRASH("Don't know what kind of object this is!");
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}
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ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
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if (object->invalidated) {
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NS_WARNING("Calling method on an invalidated object!");
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return false;
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}
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ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
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NS_ASSERTION(actor, "This shouldn't ever be null!");
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NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
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PluginInstanceChild::AutoStackHelper guard(actor->mInstance);
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Variant result;
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bool success;
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actor->CallGetParentProperty(FromNPIdentifier(aName),
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&result, &success);
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if (!success) {
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return false;
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}
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ConvertToVariant(result, *aResult);
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return true;
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}
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// static
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bool
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PluginScriptableObjectChild::ScriptableSetProperty(NPObject* aObject,
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NPIdentifier aName,
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const NPVariant* aValue)
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{
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AssertPluginThread();
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if (aObject->_class != GetClass()) {
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MOZ_CRASH("Don't know what kind of object this is!");
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}
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ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
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if (object->invalidated) {
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NS_WARNING("Calling method on an invalidated object!");
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return false;
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}
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ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
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NS_ASSERTION(actor, "This shouldn't ever be null!");
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NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
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ProtectedVariant value(*aValue, actor->GetInstance());
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if (!value.IsOk()) {
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NS_WARNING("Failed to convert variant!");
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return false;
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}
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bool success;
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actor->CallSetProperty(FromNPIdentifier(aName), value,
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&success);
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return success;
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}
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// static
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bool
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PluginScriptableObjectChild::ScriptableRemoveProperty(NPObject* aObject,
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NPIdentifier aName)
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{
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AssertPluginThread();
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if (aObject->_class != GetClass()) {
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MOZ_CRASH("Don't know what kind of object this is!");
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}
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ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
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if (object->invalidated) {
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NS_WARNING("Calling method on an invalidated object!");
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return false;
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}
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ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
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NS_ASSERTION(actor, "This shouldn't ever be null!");
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NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
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bool success;
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actor->CallRemoveProperty(FromNPIdentifier(aName),
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&success);
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return success;
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}
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// static
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bool
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PluginScriptableObjectChild::ScriptableEnumerate(NPObject* aObject,
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NPIdentifier** aIdentifiers,
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uint32_t* aCount)
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{
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AssertPluginThread();
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if (aObject->_class != GetClass()) {
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MOZ_CRASH("Don't know what kind of object this is!");
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}
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ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
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if (object->invalidated) {
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NS_WARNING("Calling method on an invalidated object!");
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return false;
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}
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ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
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NS_ASSERTION(actor, "This shouldn't ever be null!");
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NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
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AutoTArray<PluginIdentifier, 10> identifiers;
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bool success;
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actor->CallEnumerate(&identifiers, &success);
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if (!success) {
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return false;
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}
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*aCount = identifiers.Length();
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if (!*aCount) {
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*aIdentifiers = nullptr;
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return true;
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}
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*aIdentifiers = reinterpret_cast<NPIdentifier*>(
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PluginModuleChild::sBrowserFuncs.memalloc(*aCount * sizeof(NPIdentifier)));
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if (!*aIdentifiers) {
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NS_ERROR("Out of memory!");
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return false;
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}
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for (uint32_t index = 0; index < *aCount; index++) {
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StackIdentifier id(identifiers[index]);
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// Make the id permanent in case the plugin retains it.
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id.MakePermanent();
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(*aIdentifiers)[index] = id.ToNPIdentifier();
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}
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return true;
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}
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// static
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bool
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PluginScriptableObjectChild::ScriptableConstruct(NPObject* aObject,
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const NPVariant* aArgs,
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uint32_t aArgCount,
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NPVariant* aResult)
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{
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AssertPluginThread();
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if (aObject->_class != GetClass()) {
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MOZ_CRASH("Don't know what kind of object this is!");
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}
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ChildNPObject* object = reinterpret_cast<ChildNPObject*>(aObject);
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if (object->invalidated) {
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NS_WARNING("Calling method on an invalidated object!");
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return false;
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}
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ProtectedActor<PluginScriptableObjectChild> actor(object->parent);
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NS_ASSERTION(actor, "This shouldn't ever be null!");
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NS_ASSERTION(actor->Type() == Proxy, "Bad type!");
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ProtectedVariantArray args(aArgs, aArgCount, actor->GetInstance());
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if (!args.IsOk()) {
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NS_ERROR("Failed to convert arguments!");
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return false;
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}
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Variant remoteResult;
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bool success;
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actor->CallConstruct(args, &remoteResult, &success);
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if (!success) {
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return false;
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}
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ConvertToVariant(remoteResult, *aResult);
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return true;
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}
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const NPClass PluginScriptableObjectChild::sNPClass = {
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NP_CLASS_STRUCT_VERSION,
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PluginScriptableObjectChild::ScriptableAllocate,
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PluginScriptableObjectChild::ScriptableDeallocate,
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PluginScriptableObjectChild::ScriptableInvalidate,
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PluginScriptableObjectChild::ScriptableHasMethod,
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PluginScriptableObjectChild::ScriptableInvoke,
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PluginScriptableObjectChild::ScriptableInvokeDefault,
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PluginScriptableObjectChild::ScriptableHasProperty,
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PluginScriptableObjectChild::ScriptableGetProperty,
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PluginScriptableObjectChild::ScriptableSetProperty,
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PluginScriptableObjectChild::ScriptableRemoveProperty,
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PluginScriptableObjectChild::ScriptableEnumerate,
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PluginScriptableObjectChild::ScriptableConstruct
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};
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PluginScriptableObjectChild::PluginScriptableObjectChild(
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ScriptableObjectType aType)
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: mInstance(nullptr),
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mObject(nullptr),
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mInvalidated(false),
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mProtectCount(0),
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mType(aType)
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{
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AssertPluginThread();
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}
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PluginScriptableObjectChild::~PluginScriptableObjectChild()
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{
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AssertPluginThread();
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if (mObject) {
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UnregisterActor(mObject);
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if (mObject->_class == GetClass()) {
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NS_ASSERTION(mType == Proxy, "Wrong type!");
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static_cast<ChildNPObject*>(mObject)->parent = nullptr;
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}
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else {
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NS_ASSERTION(mType == LocalObject, "Wrong type!");
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PluginModuleChild::sBrowserFuncs.releaseobject(mObject);
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}
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}
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}
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bool
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PluginScriptableObjectChild::InitializeProxy()
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{
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AssertPluginThread();
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NS_ASSERTION(mType == Proxy, "Bad type!");
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NS_ASSERTION(!mObject, "Calling Initialize more than once!");
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NS_ASSERTION(!mInvalidated, "Already invalidated?!");
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|
|
mInstance = static_cast<PluginInstanceChild*>(Manager());
|
|
NS_ASSERTION(mInstance, "Null manager?!");
|
|
|
|
NPObject* object = CreateProxyObject();
|
|
if (!object) {
|
|
NS_ERROR("Failed to create object!");
|
|
return false;
|
|
}
|
|
|
|
if (!RegisterActor(object)) {
|
|
NS_ERROR("RegisterActor failed");
|
|
return false;
|
|
}
|
|
|
|
mObject = object;
|
|
return true;
|
|
}
|
|
|
|
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 (!RegisterActor(aObject)) {
|
|
NS_ERROR("RegisterActor failed");
|
|
}
|
|
|
|
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!");
|
|
|
|
if (!InitializeProxy()) {
|
|
NS_ERROR("Initialize failed!");
|
|
return false;
|
|
}
|
|
|
|
SendProtect();
|
|
return true;
|
|
}
|
|
|
|
NPObject*
|
|
PluginScriptableObjectChild::GetObject(bool aCanResurrect)
|
|
{
|
|
if (!mObject && aCanResurrect && !ResurrectProxyObject()) {
|
|
NS_ERROR("Null object!");
|
|
return nullptr;
|
|
}
|
|
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.
|
|
UnregisterActor(mObject);
|
|
mObject = nullptr;
|
|
|
|
SendUnprotect();
|
|
}
|
|
|
|
void
|
|
PluginScriptableObjectChild::NPObjectDestroyed()
|
|
{
|
|
NS_ASSERTION(LocalObject == mType,
|
|
"ScriptableDeallocate should have handled this for proxies");
|
|
mInvalidated = true;
|
|
mObject = nullptr;
|
|
}
|
|
|
|
mozilla::ipc::IPCResult
|
|
PluginScriptableObjectChild::AnswerInvalidate()
|
|
{
|
|
AssertPluginThread();
|
|
PluginInstanceChild::AutoStackHelper guard(mInstance);
|
|
|
|
if (mInvalidated) {
|
|
return IPC_OK();
|
|
}
|
|
|
|
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 IPC_OK();
|
|
}
|
|
|
|
mozilla::ipc::IPCResult
|
|
PluginScriptableObjectChild::AnswerHasMethod(const PluginIdentifier& aId,
|
|
bool* aHasMethod)
|
|
{
|
|
AssertPluginThread();
|
|
PluginInstanceChild::AutoStackHelper guard(mInstance);
|
|
|
|
if (mInvalidated) {
|
|
NS_WARNING("Calling AnswerHasMethod with an invalidated object!");
|
|
*aHasMethod = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
|
|
NS_ASSERTION(mType == LocalObject, "Bad type!");
|
|
|
|
if (!(mObject->_class && mObject->_class->hasMethod)) {
|
|
*aHasMethod = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
StackIdentifier id(aId);
|
|
*aHasMethod = mObject->_class->hasMethod(mObject, id.ToNPIdentifier());
|
|
return IPC_OK();
|
|
}
|
|
|
|
mozilla::ipc::IPCResult
|
|
PluginScriptableObjectChild::AnswerInvoke(const PluginIdentifier& aId,
|
|
InfallibleTArray<Variant>&& aArgs,
|
|
Variant* aResult,
|
|
bool* aSuccess)
|
|
{
|
|
AssertPluginThread();
|
|
PluginInstanceChild::AutoStackHelper guard(mInstance);
|
|
|
|
if (mInvalidated) {
|
|
NS_WARNING("Calling AnswerInvoke with an invalidated object!");
|
|
*aResult = void_t();
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
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 IPC_OK();
|
|
}
|
|
|
|
AutoTArray<NPVariant, 10> convertedArgs;
|
|
uint32_t argCount = aArgs.Length();
|
|
|
|
if (!convertedArgs.SetLength(argCount, mozilla::fallible)) {
|
|
*aResult = void_t();
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
for (uint32_t index = 0; index < argCount; index++) {
|
|
ConvertToVariant(aArgs[index], convertedArgs[index]);
|
|
}
|
|
|
|
NPVariant result;
|
|
VOID_TO_NPVARIANT(result);
|
|
StackIdentifier id(aId);
|
|
bool success = mObject->_class->invoke(mObject, id.ToNPIdentifier(),
|
|
convertedArgs.Elements(), argCount,
|
|
&result);
|
|
|
|
for (uint32_t index = 0; index < argCount; index++) {
|
|
PluginModuleChild::sBrowserFuncs.releasevariantvalue(&convertedArgs[index]);
|
|
}
|
|
|
|
if (!success) {
|
|
*aResult = void_t();
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
Variant convertedResult;
|
|
success = ConvertToRemoteVariant(result, convertedResult, GetInstance(),
|
|
false);
|
|
|
|
DeferNPVariantLastRelease(&PluginModuleChild::sBrowserFuncs, &result);
|
|
|
|
if (!success) {
|
|
*aResult = void_t();
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
*aSuccess = true;
|
|
*aResult = convertedResult;
|
|
return IPC_OK();
|
|
}
|
|
|
|
mozilla::ipc::IPCResult
|
|
PluginScriptableObjectChild::AnswerInvokeDefault(InfallibleTArray<Variant>&& aArgs,
|
|
Variant* aResult,
|
|
bool* aSuccess)
|
|
{
|
|
AssertPluginThread();
|
|
PluginInstanceChild::AutoStackHelper guard(mInstance);
|
|
|
|
if (mInvalidated) {
|
|
NS_WARNING("Calling AnswerInvokeDefault with an invalidated object!");
|
|
*aResult = void_t();
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
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 IPC_OK();
|
|
}
|
|
|
|
AutoTArray<NPVariant, 10> convertedArgs;
|
|
uint32_t argCount = aArgs.Length();
|
|
|
|
if (!convertedArgs.SetLength(argCount, mozilla::fallible)) {
|
|
*aResult = void_t();
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
for (uint32_t 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 (uint32_t index = 0; index < argCount; index++) {
|
|
PluginModuleChild::sBrowserFuncs.releasevariantvalue(&convertedArgs[index]);
|
|
}
|
|
|
|
if (!success) {
|
|
*aResult = void_t();
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
Variant convertedResult;
|
|
success = ConvertToRemoteVariant(result, convertedResult, GetInstance(),
|
|
false);
|
|
|
|
DeferNPVariantLastRelease(&PluginModuleChild::sBrowserFuncs, &result);
|
|
|
|
if (!success) {
|
|
*aResult = void_t();
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
*aResult = convertedResult;
|
|
*aSuccess = true;
|
|
return IPC_OK();
|
|
}
|
|
|
|
mozilla::ipc::IPCResult
|
|
PluginScriptableObjectChild::AnswerHasProperty(const PluginIdentifier& aId,
|
|
bool* aHasProperty)
|
|
{
|
|
AssertPluginThread();
|
|
PluginInstanceChild::AutoStackHelper guard(mInstance);
|
|
|
|
if (mInvalidated) {
|
|
NS_WARNING("Calling AnswerHasProperty with an invalidated object!");
|
|
*aHasProperty = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
|
|
NS_ASSERTION(mType == LocalObject, "Bad type!");
|
|
|
|
if (!(mObject->_class && mObject->_class->hasProperty)) {
|
|
*aHasProperty = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
StackIdentifier id(aId);
|
|
*aHasProperty = mObject->_class->hasProperty(mObject, id.ToNPIdentifier());
|
|
return IPC_OK();
|
|
}
|
|
|
|
mozilla::ipc::IPCResult
|
|
PluginScriptableObjectChild::AnswerGetChildProperty(const PluginIdentifier& aId,
|
|
bool* aHasProperty,
|
|
bool* aHasMethod,
|
|
Variant* aResult,
|
|
bool* aSuccess)
|
|
{
|
|
AssertPluginThread();
|
|
PluginInstanceChild::AutoStackHelper guard(mInstance);
|
|
|
|
*aHasProperty = *aHasMethod = *aSuccess = false;
|
|
*aResult = void_t();
|
|
|
|
if (mInvalidated) {
|
|
NS_WARNING("Calling AnswerGetProperty with an invalidated object!");
|
|
return IPC_OK();
|
|
}
|
|
|
|
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 IPC_OK();
|
|
}
|
|
|
|
StackIdentifier stackID(aId);
|
|
NPIdentifier id = stackID.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 IPC_OK();
|
|
}
|
|
|
|
Variant converted;
|
|
if ((*aSuccess = ConvertToRemoteVariant(result, converted, GetInstance(),
|
|
false))) {
|
|
DeferNPVariantLastRelease(&PluginModuleChild::sBrowserFuncs, &result);
|
|
*aResult = converted;
|
|
}
|
|
}
|
|
|
|
return IPC_OK();
|
|
}
|
|
|
|
mozilla::ipc::IPCResult
|
|
PluginScriptableObjectChild::AnswerSetProperty(const PluginIdentifier& aId,
|
|
const Variant& aValue,
|
|
bool* aSuccess)
|
|
{
|
|
AssertPluginThread();
|
|
PluginInstanceChild::AutoStackHelper guard(mInstance);
|
|
|
|
if (mInvalidated) {
|
|
NS_WARNING("Calling AnswerSetProperty with an invalidated object!");
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
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 IPC_OK();
|
|
}
|
|
|
|
StackIdentifier stackID(aId);
|
|
NPIdentifier id = stackID.ToNPIdentifier();
|
|
|
|
if (!mObject->_class->hasProperty(mObject, id)) {
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
NPVariant converted;
|
|
ConvertToVariant(aValue, converted);
|
|
|
|
if ((*aSuccess = mObject->_class->setProperty(mObject, id, &converted))) {
|
|
PluginModuleChild::sBrowserFuncs.releasevariantvalue(&converted);
|
|
}
|
|
return IPC_OK();
|
|
}
|
|
|
|
mozilla::ipc::IPCResult
|
|
PluginScriptableObjectChild::AnswerRemoveProperty(const PluginIdentifier& aId,
|
|
bool* aSuccess)
|
|
{
|
|
AssertPluginThread();
|
|
PluginInstanceChild::AutoStackHelper guard(mInstance);
|
|
|
|
if (mInvalidated) {
|
|
NS_WARNING("Calling AnswerRemoveProperty with an invalidated object!");
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
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 IPC_OK();
|
|
}
|
|
|
|
StackIdentifier stackID(aId);
|
|
NPIdentifier id = stackID.ToNPIdentifier();
|
|
*aSuccess = mObject->_class->hasProperty(mObject, id) ?
|
|
mObject->_class->removeProperty(mObject, id) :
|
|
true;
|
|
|
|
return IPC_OK();
|
|
}
|
|
|
|
mozilla::ipc::IPCResult
|
|
PluginScriptableObjectChild::AnswerEnumerate(InfallibleTArray<PluginIdentifier>* aProperties,
|
|
bool* aSuccess)
|
|
{
|
|
AssertPluginThread();
|
|
PluginInstanceChild::AutoStackHelper guard(mInstance);
|
|
|
|
if (mInvalidated) {
|
|
NS_WARNING("Calling AnswerEnumerate with an invalidated object!");
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
|
|
NS_ASSERTION(mType == LocalObject, "Bad type!");
|
|
|
|
if (!(mObject->_class && mObject->_class->enumerate)) {
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
NPIdentifier* ids;
|
|
uint32_t idCount;
|
|
if (!mObject->_class->enumerate(mObject, &ids, &idCount)) {
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
aProperties->SetCapacity(idCount);
|
|
|
|
for (uint32_t index = 0; index < idCount; index++) {
|
|
aProperties->AppendElement(FromNPIdentifier(ids[index]));
|
|
}
|
|
|
|
PluginModuleChild::sBrowserFuncs.memfree(ids);
|
|
*aSuccess = true;
|
|
return IPC_OK();
|
|
}
|
|
|
|
mozilla::ipc::IPCResult
|
|
PluginScriptableObjectChild::AnswerConstruct(InfallibleTArray<Variant>&& aArgs,
|
|
Variant* aResult,
|
|
bool* aSuccess)
|
|
{
|
|
AssertPluginThread();
|
|
PluginInstanceChild::AutoStackHelper guard(mInstance);
|
|
|
|
if (mInvalidated) {
|
|
NS_WARNING("Calling AnswerConstruct with an invalidated object!");
|
|
*aResult = void_t();
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
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 IPC_OK();
|
|
}
|
|
|
|
AutoTArray<NPVariant, 10> convertedArgs;
|
|
uint32_t argCount = aArgs.Length();
|
|
|
|
if (!convertedArgs.SetLength(argCount, mozilla::fallible)) {
|
|
*aResult = void_t();
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
for (uint32_t 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 (uint32_t index = 0; index < argCount; index++) {
|
|
PluginModuleChild::sBrowserFuncs.releasevariantvalue(&convertedArgs[index]);
|
|
}
|
|
|
|
if (!success) {
|
|
*aResult = void_t();
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
Variant convertedResult;
|
|
success = ConvertToRemoteVariant(result, convertedResult, GetInstance(),
|
|
false);
|
|
|
|
DeferNPVariantLastRelease(&PluginModuleChild::sBrowserFuncs, &result);
|
|
|
|
if (!success) {
|
|
*aResult = void_t();
|
|
*aSuccess = false;
|
|
return IPC_OK();
|
|
}
|
|
|
|
*aResult = convertedResult;
|
|
*aSuccess = true;
|
|
return IPC_OK();
|
|
}
|
|
|
|
mozilla::ipc::IPCResult
|
|
PluginScriptableObjectChild::RecvProtect()
|
|
{
|
|
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
|
|
NS_ASSERTION(mType == LocalObject, "Bad type!");
|
|
|
|
Protect();
|
|
return IPC_OK();
|
|
}
|
|
|
|
mozilla::ipc::IPCResult
|
|
PluginScriptableObjectChild::RecvUnprotect()
|
|
{
|
|
NS_ASSERTION(mObject->_class != GetClass(), "Bad object type!");
|
|
NS_ASSERTION(mType == LocalObject, "Bad type!");
|
|
|
|
Unprotect();
|
|
return IPC_OK();
|
|
}
|
|
|
|
bool
|
|
PluginScriptableObjectChild::Evaluate(NPString* aScript,
|
|
NPVariant* aResult)
|
|
{
|
|
PluginInstanceChild::AutoStackHelper guard(mInstance);
|
|
|
|
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;
|
|
}
|
|
|
|
nsTHashtable<PluginScriptableObjectChild::NPObjectData>* PluginScriptableObjectChild::sObjectMap;
|
|
|
|
bool
|
|
PluginScriptableObjectChild::RegisterActor(NPObject* aObject)
|
|
{
|
|
AssertPluginThread();
|
|
MOZ_ASSERT(aObject, "Null pointer!");
|
|
|
|
NPObjectData* d = sObjectMap->GetEntry(aObject);
|
|
if (!d) {
|
|
NS_ERROR("NPObject not in object table");
|
|
return false;
|
|
}
|
|
|
|
d->actor = this;
|
|
return true;
|
|
}
|
|
|
|
void
|
|
PluginScriptableObjectChild::UnregisterActor(NPObject* aObject)
|
|
{
|
|
AssertPluginThread();
|
|
MOZ_ASSERT(aObject, "Null pointer!");
|
|
|
|
NPObjectData* d = sObjectMap->GetEntry(aObject);
|
|
MOZ_ASSERT(d, "NPObject not in object table");
|
|
if (d) {
|
|
d->actor = nullptr;
|
|
}
|
|
}
|
|
|
|
/* static */ PluginScriptableObjectChild*
|
|
PluginScriptableObjectChild::GetActorForNPObject(NPObject* aObject)
|
|
{
|
|
AssertPluginThread();
|
|
MOZ_ASSERT(aObject, "Null pointer!");
|
|
|
|
NPObjectData* d = sObjectMap->GetEntry(aObject);
|
|
if (!d) {
|
|
NS_ERROR("Plugin using object not created with NPN_CreateObject?");
|
|
return nullptr;
|
|
}
|
|
|
|
return d->actor;
|
|
}
|
|
|
|
/* static */ void
|
|
PluginScriptableObjectChild::RegisterObject(NPObject* aObject, PluginInstanceChild* aInstance)
|
|
{
|
|
AssertPluginThread();
|
|
|
|
if (!sObjectMap) {
|
|
sObjectMap = new nsTHashtable<PluginScriptableObjectChild::NPObjectData>();
|
|
}
|
|
|
|
NPObjectData* d = sObjectMap->PutEntry(aObject);
|
|
MOZ_ASSERT(!d->instance, "New NPObject already mapped?");
|
|
d->instance = aInstance;
|
|
}
|
|
|
|
/* static */ void
|
|
PluginScriptableObjectChild::UnregisterObject(NPObject* aObject)
|
|
{
|
|
AssertPluginThread();
|
|
|
|
sObjectMap->RemoveEntry(aObject);
|
|
|
|
if (!sObjectMap->Count()) {
|
|
delete sObjectMap;
|
|
sObjectMap = nullptr;
|
|
}
|
|
}
|
|
|
|
/* static */ PluginInstanceChild*
|
|
PluginScriptableObjectChild::GetInstanceForNPObject(NPObject* aObject)
|
|
{
|
|
AssertPluginThread();
|
|
NPObjectData* d = sObjectMap->GetEntry(aObject);
|
|
if (!d) {
|
|
return nullptr;
|
|
}
|
|
return d->instance;
|
|
}
|
|
|
|
/* static */ void
|
|
PluginScriptableObjectChild::NotifyOfInstanceShutdown(PluginInstanceChild* aInstance)
|
|
{
|
|
AssertPluginThread();
|
|
if (!sObjectMap) {
|
|
return;
|
|
}
|
|
|
|
for (auto iter = sObjectMap->Iter(); !iter.Done(); iter.Next()) {
|
|
NPObjectData* d = iter.Get();
|
|
if (d->instance == aInstance) {
|
|
NPObject* o = d->GetKey();
|
|
aInstance->mDeletingHash->PutEntry(o);
|
|
}
|
|
}
|
|
}
|