michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * vim: sw=2 ts=2 et :
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "PluginScriptableObjectUtils.h"
michael@0: 
michael@0: namespace {
michael@0: 
michael@0: template<class InstanceType>
michael@0: class VariantTraits;
michael@0: 
michael@0: template<>
michael@0: class VariantTraits<mozilla::plugins::PluginInstanceParent>
michael@0: {
michael@0: public:
michael@0:   typedef mozilla::plugins::PluginScriptableObjectParent ScriptableObjectType;
michael@0: };
michael@0: 
michael@0: template<>
michael@0: class VariantTraits<mozilla::plugins::PluginInstanceChild>
michael@0: {
michael@0: public:
michael@0:   typedef mozilla::plugins::PluginScriptableObjectChild ScriptableObjectType;
michael@0: };
michael@0: 
michael@0: } /* anonymous namespace */
michael@0: 
michael@0: inline bool
michael@0: mozilla::plugins::ConvertToVariant(const Variant& aRemoteVariant,
michael@0:                                    NPVariant& aVariant,
michael@0:                                    PluginInstanceParent* aInstance)
michael@0: {
michael@0:   switch (aRemoteVariant.type()) {
michael@0:     case Variant::Tvoid_t: {
michael@0:       VOID_TO_NPVARIANT(aVariant);
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:     case Variant::Tnull_t: {
michael@0:       NULL_TO_NPVARIANT(aVariant);
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:     case Variant::Tbool: {
michael@0:       BOOLEAN_TO_NPVARIANT(aRemoteVariant.get_bool(), aVariant);
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:     case Variant::Tint: {
michael@0:       INT32_TO_NPVARIANT(aRemoteVariant.get_int(), aVariant);
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:     case Variant::Tdouble: {
michael@0:       DOUBLE_TO_NPVARIANT(aRemoteVariant.get_double(), aVariant);
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:     case Variant::TnsCString: {
michael@0:       const nsCString& string = aRemoteVariant.get_nsCString();
michael@0:       NPUTF8* buffer = reinterpret_cast<NPUTF8*>(strdup(string.get()));
michael@0:       if (!buffer) {
michael@0:         NS_ERROR("Out of memory!");
michael@0:         return false;
michael@0:       }
michael@0:       STRINGN_TO_NPVARIANT(buffer, string.Length(), aVariant);
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:     case Variant::TPPluginScriptableObjectParent: {
michael@0:       NS_ASSERTION(aInstance, "Must have an instance!");
michael@0:       NPObject* object = NPObjectFromVariant(aRemoteVariant);
michael@0:       if (!object) {
michael@0:         NS_ERROR("Er, this shouldn't fail!");
michael@0:         return false;
michael@0:       }
michael@0: 
michael@0:       const NPNetscapeFuncs* npn = GetNetscapeFuncs(aInstance);
michael@0:       if (!npn) {
michael@0:         NS_ERROR("Null netscape funcs!");
michael@0:         return false;
michael@0:       }
michael@0: 
michael@0:       npn->retainobject(object);
michael@0:       OBJECT_TO_NPVARIANT(object, aVariant);
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:     case Variant::TPPluginScriptableObjectChild: {
michael@0:       NS_ASSERTION(!aInstance, "No instance should be given!");
michael@0:       NS_ASSERTION(PluginModuleChild::current(),
michael@0:                    "Should be running on child only!");
michael@0: 
michael@0:       NPObject* object = NPObjectFromVariant(aRemoteVariant);
michael@0:       NS_ASSERTION(object, "Null object?!");
michael@0: 
michael@0:       PluginModuleChild::sBrowserFuncs.retainobject(object);
michael@0:       OBJECT_TO_NPVARIANT(object, aVariant);
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:     default:
michael@0:       NS_NOTREACHED("Shouldn't get here!");
michael@0:       return false;
michael@0:   }
michael@0: 
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: template <class InstanceType>
michael@0: bool
michael@0: mozilla::plugins::ConvertToRemoteVariant(const NPVariant& aVariant,
michael@0:                                          Variant& aRemoteVariant,
michael@0:                                          InstanceType* aInstance,
michael@0:                                          bool aProtectActors)
michael@0: {
michael@0:   if (NPVARIANT_IS_VOID(aVariant)) {
michael@0:     aRemoteVariant = mozilla::void_t();
michael@0:   }
michael@0:   else if (NPVARIANT_IS_NULL(aVariant)) {
michael@0:     aRemoteVariant = mozilla::null_t();
michael@0:   }
michael@0:   else if (NPVARIANT_IS_BOOLEAN(aVariant)) {
michael@0:     aRemoteVariant = NPVARIANT_TO_BOOLEAN(aVariant);
michael@0:   }
michael@0:   else if (NPVARIANT_IS_INT32(aVariant)) {
michael@0:     aRemoteVariant = NPVARIANT_TO_INT32(aVariant);
michael@0:   }
michael@0:   else if (NPVARIANT_IS_DOUBLE(aVariant)) {
michael@0:     aRemoteVariant = NPVARIANT_TO_DOUBLE(aVariant);
michael@0:   }
michael@0:   else if (NPVARIANT_IS_STRING(aVariant)) {
michael@0:     NPString str = NPVARIANT_TO_STRING(aVariant);
michael@0:     nsCString string(str.UTF8Characters, str.UTF8Length);
michael@0:     aRemoteVariant = string;
michael@0:   }
michael@0:   else if (NPVARIANT_IS_OBJECT(aVariant)) {
michael@0:     NPObject* object = NPVARIANT_TO_OBJECT(aVariant);
michael@0: 
michael@0:     typename VariantTraits<InstanceType>::ScriptableObjectType* actor =
michael@0:       aInstance->GetActorForNPObject(object);
michael@0: 
michael@0:     if (!actor) {
michael@0:       NS_ERROR("Null actor!");
michael@0:       return false;
michael@0:     }
michael@0: 
michael@0:     if (aProtectActors) {
michael@0:       actor->Protect();
michael@0:     }
michael@0: 
michael@0:     aRemoteVariant = actor;
michael@0:   }
michael@0:   else {
michael@0:     NS_NOTREACHED("Shouldn't get here!");
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   return true;
michael@0: }