mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-02 15:15:23 +00:00
121 lines
3.8 KiB
C++
121 lines
3.8 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
|
|
* IBM Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2004
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Brian Ryner <bryner@brianryner.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either 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 "nsIXFormsValueElement.h"
|
|
#include "nsXFormsStubElement.h"
|
|
#include "nsIXTFGenericElementWrapper.h"
|
|
#include "nsIDOM3Node.h"
|
|
#include "nsXFormsUtils.h"
|
|
#include "nsIDOMElement.h"
|
|
#include "nsString.h"
|
|
|
|
/**
|
|
* Implementation of the XForms \<value\> element.
|
|
*
|
|
* @note The value element does not display any content, it simply provides
|
|
* a value from inline text or instance data.
|
|
*/
|
|
|
|
class nsXFormsValueElement : public nsXFormsStubElement,
|
|
public nsIXFormsValueElement
|
|
{
|
|
public:
|
|
nsXFormsValueElement() : mElement(nsnull) {}
|
|
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
// nsIXTFGenericElement overrides
|
|
NS_IMETHOD OnCreated(nsIXTFGenericElementWrapper *aWrapper);
|
|
|
|
// nsIXFormsValueElement
|
|
NS_DECL_NSIXFORMSVALUEELEMENT
|
|
|
|
private:
|
|
nsIDOMElement *mElement;
|
|
};
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED1(nsXFormsValueElement,
|
|
nsXFormsStubElement,
|
|
nsIXFormsValueElement)
|
|
|
|
NS_IMETHODIMP
|
|
nsXFormsValueElement::OnCreated(nsIXTFGenericElementWrapper *aWrapper)
|
|
{
|
|
nsCOMPtr<nsIDOMElement> node;
|
|
aWrapper->GetElementNode(getter_AddRefs(node));
|
|
|
|
// It's ok to keep pointer to mElement. mElement will have an
|
|
// owning reference to this object, so as long as we null out mElement in
|
|
// OnDestroyed, it will always be valid.
|
|
|
|
mElement = node;
|
|
NS_ASSERTION(mElement, "Wrapper is not an nsIDOMElement, we'll crash soon");
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// nsIXFormsValueElement
|
|
|
|
NS_IMETHODIMP
|
|
nsXFormsValueElement::GetValue(nsAString &aValue)
|
|
{
|
|
nsString value;
|
|
PRBool singleNodeVal =
|
|
nsXFormsUtils::GetSingleNodeBindingValue(mElement, value);
|
|
if (singleNodeVal) {
|
|
aValue.Assign(value);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsIDOM3Node> node3 = do_QueryInterface(mElement);
|
|
NS_ASSERTION(node3, "dom elements must support dom3");
|
|
|
|
return node3->GetTextContent(aValue);
|
|
}
|
|
|
|
NS_HIDDEN_(nsresult)
|
|
NS_NewXFormsValueElement(nsIXTFElement **aResult)
|
|
{
|
|
*aResult = new nsXFormsValueElement();
|
|
if (!*aResult)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
NS_ADDREF(*aResult);
|
|
return NS_OK;
|
|
}
|