RetroZilla/xpfe/bootstrap/appleevents/nsAEClassDispatcher.cpp

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2015-10-21 05:03:22 +02:00
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** 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 Communicator client code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Simon Fraser <sfraser@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of 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 "nsAEUtils.h"
#include "nsAEGenericClass.h"
#include "nsAEClassDispatcher.h"
/*----------------------------------------------------------------------------
AEDispatchHandler
Ownership of the hanlder passes to this object
----------------------------------------------------------------------------*/
AEDispatchHandler::AEDispatchHandler(DescType handlerClass, AEGenericClass* handler, Boolean deleteOnRemove /* = true*/ )
: mDeleteHandler(deleteOnRemove)
, mHandlerClass(handlerClass)
, mHandler(handler)
{
AE_ASSERT(mHandler, "No handler");
}
/*----------------------------------------------------------------------------
AEDispatchHandler
----------------------------------------------------------------------------*/
AEDispatchHandler::~AEDispatchHandler()
{
if (mDeleteHandler)
delete mHandler;
}
/*----------------------------------------------------------------------------
DispatchEvent
----------------------------------------------------------------------------*/
void AEDispatchHandler::DispatchEvent( AEDesc * token,
const AppleEvent * appleEvent,
AppleEvent * reply)
{
AE_ASSERT(mHandler, "No handler");
mHandler->DispatchEvent(token, appleEvent, reply);
}
/*----------------------------------------------------------------------------
GetProperty
----------------------------------------------------------------------------*/
void AEDispatchHandler::GetProperty( DescType desiredClass,
const AEDesc* containerToken,
DescType containerClass,
DescType keyForm,
const AEDesc* keyData,
AEDesc* resultToken)
{
AE_ASSERT(mHandler, "No handler");
mHandler->GetProperty(desiredClass, containerToken, containerClass, keyForm, keyData, resultToken);
}
/*----------------------------------------------------------------------------
GetDataFromListOrObject
----------------------------------------------------------------------------*/
void AEDispatchHandler::GetDataFromListOrObject( const AEDesc * tokenOrTokenList,
AEDesc * desiredTypes,
AEDesc * data)
{
AE_ASSERT(mHandler, "No handler");
mHandler->GetDataFromListOrObject(tokenOrTokenList, desiredTypes, data);
}
/*----------------------------------------------------------------------------
GetItemFromContainer
----------------------------------------------------------------------------*/
void AEDispatchHandler::GetItemFromContainer( DescType desiredClass,
const AEDesc* containerToken,
DescType containerClass,
DescType keyForm,
const AEDesc* keyData,
AEDesc* resultToken)
{
AE_ASSERT(mHandler, "No handler");
mHandler->GetItemFromContainer(desiredClass, containerToken, containerClass, keyForm, keyData, resultToken);
}
/*----------------------------------------------------------------------------
CompareObjects
----------------------------------------------------------------------------*/
void AEDispatchHandler::CompareObjects( DescType comparisonOperator,
const AEDesc * object,
const AEDesc * descriptorOrObject,
Boolean * result)
{
AE_ASSERT(mHandler, "No handler");
mHandler->CompareObjects(comparisonOperator, object, descriptorOrObject, result);
}
/*----------------------------------------------------------------------------
CountObjects
----------------------------------------------------------------------------*/
void AEDispatchHandler::CountObjects( DescType desiredType,
DescType containerClass,
const AEDesc * container,
long * result)
{
AE_ASSERT(mHandler, "No handler");
mHandler->CountObjects(desiredType, containerClass, container, result);
}
/*----------------------------------------------------------------------------
CreateSelfSpecifier
----------------------------------------------------------------------------*/
void AEDispatchHandler::CreateSelfSpecifier( const AEDesc * token,
AEDesc * outSpecifier)
{
AE_ASSERT(mHandler, "No handler");
mHandler->CreateSelfSpecifier(token, outSpecifier);
}
#pragma mark -
/*----------------------------------------------------------------------------
AEDispatchTree
----------------------------------------------------------------------------*/
AEDispatchTree::AEDispatchTree()
: mTree(nil)
{
mTree = PatriciaInitTree(8 * sizeof(DescType));
ThrowIfNil(mTree);
}
/*----------------------------------------------------------------------------
~AEDispatchTree
----------------------------------------------------------------------------*/
AEDispatchTree::~AEDispatchTree()
{
if (mTree)
PatriciaFreeTree(mTree, FreeDispatchTreeNodeData, this);
}
/*----------------------------------------------------------------------------
InsertHandler
----------------------------------------------------------------------------*/
void AEDispatchTree::InsertHandler(DescType handlerClass, AEGenericClass *handler, Boolean isDuplicate /* = false */)
{
AEDispatchHandler *newHandler = new AEDispatchHandler(handlerClass, handler, !isDuplicate);
unsigned char key[5] = {0};
int result;
*(DescType *)key = handlerClass;
result = PatriciaInsert(mTree, nil, key, newHandler, nil);
if (result == kDuplicateKeyError || result == 1)
{
ThrowIfOSErr(kDuplicateKeyError);
}
else if (result != 0)
{
ThrowIfOSErr(result);
}
}
/*----------------------------------------------------------------------------
FindHandler
----------------------------------------------------------------------------*/
AEDispatchHandler* AEDispatchTree::FindHandler(DescType handlerClass)
{
AEDispatchHandler* foundClass = nil;
unsigned char key[5] = {0};
*(DescType *)key = handlerClass;
(void)PatriciaSearch(mTree, key, (void**)&foundClass);
return foundClass;
}
/*----------------------------------------------------------------------------
ReplaceDispatchTreeNode
static
if this ever gets called, it means we tried to insert a node for a duplicate class,
which is an error. So return an error. We don't want to throw because the
patricia code may not be exception-safe.
----------------------------------------------------------------------------*/
int AEDispatchTree::ReplaceDispatchTreeNode(void *nodeData, unsigned char *key, void *replaceData)
{
return kDuplicateKeyError;
}
/*----------------------------------------------------------------------------
FreeDispatchTreeNodeData
static
----------------------------------------------------------------------------*/
int AEDispatchTree::FreeDispatchTreeNodeData(void *nodeData, unsigned char *key, void *refCon)
{
AEDispatchTree* dispatchTree = reinterpret_cast<AEDispatchTree *>(refCon);
AEDispatchHandler* handler = reinterpret_cast<AEDispatchHandler *>(nodeData);
delete handler;
return 0;
}