Files
Mozilla/mozilla/embedding/components/commandhandler/src/nsCommandGroup.cp
sfraser%netscape.com d96a4cb74a Work in progress for command handling APIs. Not part of the build
git-svn-id: svn://10.0.0.236/trunk@91540 18797224-902f-48f8-a5cc-f745e15eee43
2001-04-06 01:27:53 +00:00

143 lines
4.0 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
*/
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsVoidArray.h"
#include "nsCommandGroup.h"
/* Implementation file */
NS_IMPL_ISUPPORTS1(nsControllerCommandGroup, nsIControllerCommandGroup)
nsControllerCommandGroup::nsControllerCommandGroup()
{
NS_INIT_ISUPPORTS();
}
nsControllerCommandGroup::~nsControllerCommandGroup()
{
ClearGroupsHash();
}
void
nsControllerCommandGroup::ClearGroupsHash()
{
mGroupsHash.Reset(ClearEnumerator, (void *)this);
}
#if 0
#pragma mark -
#endif
/* void addCommandToGroup (in DOMString aCommand, in DOMString aGroup); */
NS_IMETHODIMP
nsControllerCommandGroup::AddCommandToGroup(const nsAReadableString & aCommand, const nsAReadableString & aGroup)
{
nsStringKey groupKey(aGroup);
nsVoidArray* commandList;
if ((commandList = (nsVoidArray *)mGroupsHash.Get(&groupKey)) == nsnull)
{
// make this list
commandList = new nsVoidArray;
mGroupsHash.Put(&groupKey, (void *)commandList);
}
// add the command to the list. Note that we're not checking for duplicates here
PRUnichar* commandString = ToNewUnicode(aCommand); // we store allocated PRUnichar* in the array
if (!commandString) return NS_ERROR_OUT_OF_MEMORY;
PRBool appended = commandList->AppendElement((void *)commandString);
NS_ASSERTION(appended, "Append failed");
return NS_OK;
}
/* void removeCommandFromGroup (in DOMString aCommand, in DOMString aGroup); */
NS_IMETHODIMP
nsControllerCommandGroup::RemoveCommandFromGroup(const nsAReadableString & aCommand, const nsAReadableString & aGroup)
{
nsStringKey groupKey(aGroup);
nsVoidArray* commandList = (nsVoidArray *)mGroupsHash.Get(&groupKey);
if (!commandList) return NS_OK; // no group
PRInt32 numEntries = commandList->Count();
for (PRInt32 i = 0; i < numEntries; i ++)
{
PRUnichar* commandString = (PRUnichar*)commandList->ElementAt(i);
if (aCommand.Equals(commandString))
{
commandList->RemoveElementAt(i);
nsMemory::Free(commandString);
break;
}
}
return NS_OK;
}
/* boolean isCommandInGroup (in DOMString aCommand, in DOMString aGroup); */
NS_IMETHODIMP
nsControllerCommandGroup::IsCommandInGroup(const nsAReadableString & aCommand, const nsAReadableString & aGroup, PRBool *_retval)
{
NS_ENSURE_ARG_POINTER(_retval);
*_retval = PR_FALSE;
nsStringKey groupKey(aGroup);
nsVoidArray* commandList = (nsVoidArray *)mGroupsHash.Get(&groupKey);
if (!commandList) return NS_OK; // no group
PRInt32 numEntries = commandList->Count();
for (PRInt32 i = 0; i < numEntries; i ++)
{
PRUnichar* commandString = (PRUnichar*)commandList->ElementAt(i);
if (aCommand.Equals(commandString))
{
*_retval = PR_TRUE;
break;
}
}
return NS_OK;
}
#if 0
#pragma mark -
#endif
PRBool nsControllerCommandGroup::ClearEnumerator(nsHashKey *aKey, void *aData, void* closure)
{
nsVoidArray* commandList = (nsVoidArray *)aData;
if (commandList)
{
PRInt32 numEntries = commandList->Count();
for (PRInt32 i = 0; i < numEntries; i ++)
{
PRUnichar* commandString = (PRUnichar*)commandList->ElementAt(i);
nsMemory::Free(commandString);
}
delete commandList;
}
return PR_TRUE;
}