pjs/extensions/xforms/nsXFormsLoadElement.cpp

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/* -*- 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 XForms support.
*
* The Initial Developer of the Original Code is
* Olli Pettay.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Olli Pettay <Olli.Pettay@helsinki.fi> (original author)
*
* 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 "nsXFormsActionModuleBase.h"
#include "nsXFormsActionElement.h"
#include "nsIDOMDocument.h"
#include "nsIDOMWindowInternal.h"
#include "nsIDOMLocation.h"
#include "nsIDOMDocumentView.h"
#include "nsIDOMAbstractView.h"
#include "nsXFormsUtils.h"
class nsXFormsLoadElement : public nsXFormsActionModuleBase
{
public:
nsXFormsLoadElement();
protected:
nsresult HandleSingleAction(nsIDOMEvent* aEvent,
nsIXFormsActionElement *aParentAction);
};
nsXFormsLoadElement::nsXFormsLoadElement() :
nsXFormsActionModuleBase(PR_TRUE)
{
}
nsresult
nsXFormsLoadElement::HandleSingleAction(nsIDOMEvent* aEvent,
nsIXFormsActionElement *aParentAction)
{
//If the element has 'resource' and single node binding, the
//action has no effect.
PRBool hasBind;
PRBool hasRef;
mElement->HasAttribute(NS_LITERAL_STRING("bind"), &hasBind);
mElement->HasAttribute(NS_LITERAL_STRING("ref"), &hasRef);
nsAutoString resource;
mElement->GetAttribute(NS_LITERAL_STRING("resource"), resource);
if (!resource.IsEmpty() && (hasBind || hasRef))
return NS_OK;
nsAutoString urlstr;
if (!resource.IsEmpty())
urlstr = resource;
else if (!nsXFormsUtils::GetSingleNodeBindingValue(mElement, urlstr))
return NS_OK;
nsCOMPtr<nsIDOMDocument> doc;
nsCOMPtr<nsIDOMWindowInternal> internal;
mElement->GetOwnerDocument(getter_AddRefs(doc));
nsXFormsUtils::GetWindowFromDocument(doc, getter_AddRefs(internal));
if (!internal) {
NS_ASSERTION(internal, "No AbstractView or it isn't an nsIDOMWindowInternal");
return NS_OK;
}
PRBool openNew = PR_FALSE;
nsAutoString show;
mElement->GetAttribute(NS_LITERAL_STRING("show"), show);
if (show.EqualsLiteral("new")) {
openNew = PR_TRUE;
}
//Otherwise 'replace'
if (openNew) {
nsCOMPtr<nsIDOMWindow> messageWindow;
internal->Open(urlstr, EmptyString(), EmptyString(),
getter_AddRefs(messageWindow));
}
else {
nsCOMPtr<nsIDOMLocation> location;
internal->GetLocation(getter_AddRefs(location));
if (location)
location->Assign(urlstr);
}
return NS_OK;
}
NS_HIDDEN_(nsresult)
NS_NewXFormsLoadElement(nsIXTFElement **aResult)
{
*aResult = new nsXFormsLoadElement();
if (!*aResult)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(*aResult);
return NS_OK;
}