297 lines
8.7 KiB
C++
297 lines
8.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Original Author: David W. Hyatt (hyatt@netscape.com)
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* Mark Hammond <MarkH@ActiveState.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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This file provides the implementation for the XUL "controllers"
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object.
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*/
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#include "nsString.h"
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#include "nsIControllers.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMXULCommandDispatcher.h"
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#include "nsXULControllers.h"
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#include "nsString.h"
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#include "nsContentUtils.h"
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//----------------------------------------------------------------------
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nsXULControllers::nsXULControllers()
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: mCurControllerID(0)
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{
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}
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nsXULControllers::~nsXULControllers(void)
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{
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DeleteControllers();
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}
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void
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nsXULControllers::DeleteControllers()
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{
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PRUint32 count = mControllers.Count();
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for (PRUint32 i = 0; i < count; i++)
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{
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nsXULControllerData* controllerData = NS_STATIC_CAST(nsXULControllerData*, mControllers.ElementAt(i));
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if (controllerData)
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delete controllerData; // releases the nsIController
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}
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mControllers.Clear();
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}
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NS_IMETHODIMP
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NS_NewXULControllers(nsISupports* aOuter, REFNSIID aIID, void** aResult)
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{
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NS_PRECONDITION(aOuter == nsnull, "no aggregation");
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if (aOuter)
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return NS_ERROR_NO_AGGREGATION;
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nsXULControllers* controllers = new nsXULControllers();
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if (! controllers)
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return NS_ERROR_OUT_OF_MEMORY;
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nsresult rv;
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NS_ADDREF(controllers);
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rv = controllers->QueryInterface(aIID, aResult);
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NS_RELEASE(controllers);
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return rv;
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}
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// QueryInterface implementation for nsXULControllers
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NS_INTERFACE_MAP_BEGIN(nsXULControllers)
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NS_INTERFACE_MAP_ENTRY(nsIControllers)
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(XULControllers)
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NS_INTERFACE_MAP_END
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NS_IMPL_ADDREF(nsXULControllers)
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NS_IMPL_RELEASE(nsXULControllers)
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NS_IMETHODIMP
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nsXULControllers::GetCommandDispatcher(nsIDOMXULCommandDispatcher** _result)
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{
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nsCOMPtr<nsIDOMXULCommandDispatcher> dispatcher = do_QueryReferent(mCommandDispatcher);
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*_result = dispatcher;
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NS_IF_ADDREF(*_result);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsXULControllers::SetCommandDispatcher(nsIDOMXULCommandDispatcher* aCommandDispatcher)
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{
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mCommandDispatcher = do_GetWeakReference(aCommandDispatcher);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsXULControllers::GetControllerForCommand(const char *aCommand, nsIController** _retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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*_retval = nsnull;
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PRUint32 count = mControllers.Count();
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for (PRUint32 i=0; i < count; i++)
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{
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nsXULControllerData* controllerData = NS_STATIC_CAST(nsXULControllerData*, mControllers.ElementAt(i));
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if (controllerData)
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{
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nsCOMPtr<nsIController> controller;
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controllerData->GetController(getter_AddRefs(controller));
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if (controller)
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{
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PRBool supportsCommand;
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controller->SupportsCommand(aCommand, &supportsCommand);
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if (supportsCommand) {
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*_retval = controller;
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NS_ADDREF(*_retval);
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return NS_OK;
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}
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}
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsXULControllers::InsertControllerAt(PRUint32 aIndex, nsIController *controller)
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{
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nsXULControllerData* controllerData = new nsXULControllerData(++mCurControllerID, controller);
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if (!controllerData) return NS_ERROR_OUT_OF_MEMORY;
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#ifdef DEBUG
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PRBool inserted =
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#endif
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mControllers.InsertElementAt((void *)controllerData, aIndex);
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NS_ASSERTION(inserted, "Insertion of controller failed");
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return NS_OK;
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}
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NS_IMETHODIMP
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nsXULControllers::RemoveControllerAt(PRUint32 aIndex, nsIController **_retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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*_retval = nsnull;
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nsXULControllerData* controllerData = NS_STATIC_CAST(nsXULControllerData*, mControllers.SafeElementAt(aIndex));
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if (!controllerData) return NS_ERROR_FAILURE;
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#ifdef DEBUG
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PRBool removed =
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#endif
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mControllers.RemoveElementAt(aIndex);
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NS_ASSERTION(removed, "Removal of controller failed");
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controllerData->GetController(_retval);
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delete controllerData;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsXULControllers::GetControllerAt(PRUint32 aIndex, nsIController **_retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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*_retval = nsnull;
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nsXULControllerData* controllerData = NS_STATIC_CAST(nsXULControllerData*, mControllers.SafeElementAt(aIndex));
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if (!controllerData) return NS_ERROR_FAILURE;
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return controllerData->GetController(_retval); // does the addref
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}
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NS_IMETHODIMP
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nsXULControllers::AppendController(nsIController *controller)
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{
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// This assigns controller IDs starting at 1 so we can use 0 to test if an ID was obtained
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nsXULControllerData* controllerData = new nsXULControllerData(++mCurControllerID, controller);
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if (!controllerData) return NS_ERROR_OUT_OF_MEMORY;
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#ifdef DEBUG
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PRBool appended =
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#endif
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mControllers.AppendElement((void *)controllerData);
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NS_ASSERTION(appended, "Appending controller failed");
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return NS_OK;
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}
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NS_IMETHODIMP
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nsXULControllers::RemoveController(nsIController *controller)
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{
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// first get the identity pointer
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nsCOMPtr<nsISupports> controllerSup(do_QueryInterface(controller));
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// then find it
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PRUint32 count = mControllers.Count();
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for (PRUint32 i = 0; i < count; i++)
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{
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nsXULControllerData* controllerData = NS_STATIC_CAST(nsXULControllerData*, mControllers.ElementAt(i));
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if (controllerData)
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{
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nsCOMPtr<nsIController> thisController;
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controllerData->GetController(getter_AddRefs(thisController));
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nsCOMPtr<nsISupports> thisControllerSup(do_QueryInterface(thisController)); // get identity
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if (thisControllerSup == controllerSup)
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{
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mControllers.RemoveElementAt(i);
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delete controllerData;
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return NS_OK;
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}
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}
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}
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return NS_ERROR_FAILURE; // right thing to return if no controller found?
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}
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/* unsigned long getControllerId (in nsIController controller); */
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NS_IMETHODIMP
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nsXULControllers::GetControllerId(nsIController *controller, PRUint32 *_retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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PRUint32 count = mControllers.Count();
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for (PRUint32 i = 0; i < count; i++)
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{
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nsXULControllerData* controllerData = NS_STATIC_CAST(nsXULControllerData*, mControllers.ElementAt(i));
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if (controllerData)
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{
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nsCOMPtr<nsIController> thisController;
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controllerData->GetController(getter_AddRefs(thisController));
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if (thisController.get() == controller)
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{
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*_retval = controllerData->GetControllerID();
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return NS_OK;
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}
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}
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}
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return NS_ERROR_FAILURE; // none found
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}
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/* nsIController getControllerById (in unsigned long controllerID); */
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NS_IMETHODIMP
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nsXULControllers::GetControllerById(PRUint32 controllerID, nsIController **_retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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PRUint32 count = mControllers.Count();
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for (PRUint32 i = 0; i < count; i++)
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{
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nsXULControllerData* controllerData = NS_STATIC_CAST(nsXULControllerData*, mControllers.ElementAt(i));
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if (controllerData && controllerData->GetControllerID() == controllerID)
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{
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return controllerData->GetController(_retval);
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}
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}
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return NS_ERROR_FAILURE; // none found
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}
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NS_IMETHODIMP
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nsXULControllers::GetControllerCount(PRUint32 *_retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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*_retval = mControllers.Count();
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return NS_OK;
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}
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