gecko-dev/extensions/xforms/nsXFormsDispatchElement.cpp

133 lines
4.4 KiB
C++

/* -*- 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 "nsIDOMDocument.h"
#include "nsIDOMDocumentEvent.h"
#include "nsIDOMEvent.h"
#include "nsIDOMElement.h"
#include "nsIDOMEventTarget.h"
#include "nsString.h"
#include "nsXFormsUtils.h"
class nsXFormsDispatchElement : public nsXFormsActionModuleBase
{
public:
nsXFormsDispatchElement();
NS_DECL_NSIXFORMSACTIONMODULEELEMENT
};
nsXFormsDispatchElement::nsXFormsDispatchElement()
{
}
NS_IMETHODIMP
nsXFormsDispatchElement::HandleAction(nsIDOMEvent* aEvent,
nsIXFormsActionElement *aParentAction)
{
if (!mElement)
return NS_OK;
nsAutoString name;
mElement->GetAttribute(NS_LITERAL_STRING("name"), name);
if (name.IsEmpty())
return NS_OK;
nsAutoString target;
mElement->GetAttribute(NS_LITERAL_STRING("target"), target);
if (target.IsEmpty())
return NS_OK;
PRBool cancelable = PR_TRUE;
PRBool bubbles = PR_TRUE;
if (!nsXFormsUtils::IsXFormsEvent(name, cancelable, bubbles)) {
nsAutoString cancelableStr;
mElement->GetAttribute(NS_LITERAL_STRING("cancelable"), cancelableStr);
cancelable = !(cancelableStr.EqualsLiteral("false") ||
cancelableStr.EqualsLiteral("0"));
nsAutoString bubbleStr;
mElement->GetAttribute(NS_LITERAL_STRING("bubbles"), bubbleStr);
bubbles = !(bubbleStr.EqualsLiteral("false") ||
bubbleStr.EqualsLiteral("0"));
PRBool tmp;
if (cancelableStr.IsEmpty() && bubbleStr.IsEmpty())
nsXFormsUtils::GetEventDefaults(name, cancelable, bubbles);
else if (cancelableStr.IsEmpty())
nsXFormsUtils::GetEventDefaults(name, cancelable, tmp);
else if (bubbleStr.IsEmpty())
nsXFormsUtils::GetEventDefaults(name, tmp, bubbles);
}
nsCOMPtr<nsIDOMDocument> doc;
mElement->GetOwnerDocument(getter_AddRefs(doc));
if (!doc)
return NS_OK;
nsCOMPtr<nsIDOMElement> el;
doc->GetElementById(target, getter_AddRefs(el));
if (!el)
return NS_OK;
nsCOMPtr<nsIDOMDocumentEvent> docEvent = do_QueryInterface(doc);
nsCOMPtr<nsIDOMEvent> event;
docEvent->CreateEvent(NS_LITERAL_STRING("Events"), getter_AddRefs(event));
event->InitEvent(name, bubbles, cancelable);
nsCOMPtr<nsIDOMEventTarget> targetEl = do_QueryInterface(el);
if (targetEl) {
nsXFormsUtils::SetEventTrusted(event, el);
PRBool defaultActionEnabled;
targetEl->DispatchEvent(event, &defaultActionEnabled);
}
return NS_OK;
}
NS_HIDDEN_(nsresult)
NS_NewXFormsDispatchElement(nsIXTFElement **aResult)
{
*aResult = new nsXFormsDispatchElement();
if (!*aResult)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(*aResult);
return NS_OK;
}