mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-02 07:05:24 +00:00
143 lines
4.0 KiB
C++
143 lines
4.0 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
|
|
* Novell, Inc.
|
|
* Portions created by the Initial Developer are Copyright (C) 2004
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Allan Beaufour <abeaufour@novell.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 "nsAutoPtr.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsString.h"
|
|
|
|
#include "nsIDOM3Node.h"
|
|
#include "nsIDOMElement.h"
|
|
#include "nsIDOMDocument.h"
|
|
#include "nsIDOMNodeList.h"
|
|
#include "nsIDOMEventTarget.h"
|
|
#include "nsIDOMXPathResult.h"
|
|
#include "nsIDOMHTMLDivElement.h"
|
|
|
|
#include "nsIXTFXMLVisual.h"
|
|
#include "nsIXTFXMLVisualWrapper.h"
|
|
|
|
#include "nsXFormsControlStub.h"
|
|
#include "nsIModelElementPrivate.h"
|
|
#include "nsXFormsUtils.h"
|
|
#include "nsXFormsDelegateStub.h"
|
|
|
|
#ifdef DEBUG
|
|
// #define DEBUG_XF_GROUP
|
|
#endif
|
|
|
|
/**
|
|
* Implementation of the XForms \<group\> control.
|
|
*
|
|
* @see http://www.w3.org/TR/xforms/slice9.html#id2631290
|
|
*
|
|
* @todo XXX: If a \<label\> is the first element child for \<group\> it is the
|
|
* label for the entire group
|
|
*
|
|
* @todo XXX: With some small adjustments we could let nsXFormsContextContainer
|
|
* implement group, and get rid of this class (XXX).
|
|
*/
|
|
|
|
class nsXFormsGroupElement : public nsXFormsDelegateStub
|
|
{
|
|
protected:
|
|
/** Tries to focus a child form control.*/
|
|
PRBool TryFocusChildControl(nsIDOMNode *aParent);
|
|
|
|
public:
|
|
// nsIXFormsControl
|
|
NS_IMETHOD TryFocus(PRBool *aOK);
|
|
|
|
#ifdef DEBUG_smaug
|
|
virtual const char* Name() { return "group"; }
|
|
#endif
|
|
|
|
};
|
|
|
|
PRBool
|
|
nsXFormsGroupElement::TryFocusChildControl(nsIDOMNode* aParent)
|
|
{
|
|
if (!aParent)
|
|
return PR_FALSE;
|
|
|
|
nsCOMPtr<nsIDOMNodeList> children;
|
|
nsresult rv = aParent->GetChildNodes(getter_AddRefs(children));
|
|
if (NS_FAILED(rv))
|
|
return PR_FALSE;
|
|
|
|
PRUint32 childCount = 0;
|
|
children->GetLength(&childCount);
|
|
nsCOMPtr<nsIDOMNode> child;
|
|
|
|
for (PRUint32 i = 0; i < childCount; ++i) {
|
|
children->Item(i, getter_AddRefs(child));
|
|
nsCOMPtr<nsIXFormsControl> control(do_QueryInterface(child));
|
|
PRBool focus = PR_FALSE;
|
|
if (control) {
|
|
control->TryFocus(&focus);
|
|
if (focus)
|
|
return PR_TRUE;
|
|
}
|
|
focus = TryFocusChildControl(child);
|
|
if (focus)
|
|
return PR_TRUE;
|
|
}
|
|
|
|
return PR_FALSE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXFormsGroupElement::TryFocus(PRBool* aOK)
|
|
{
|
|
*aOK = PR_FALSE;
|
|
if (GetRelevantState()) {
|
|
*aOK = TryFocusChildControl(mElement);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// Factory
|
|
NS_HIDDEN_(nsresult)
|
|
NS_NewXFormsGroupElement(nsIXTFElement **aResult)
|
|
{
|
|
*aResult = new nsXFormsGroupElement();
|
|
if (!*aResult)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
NS_ADDREF(*aResult);
|
|
return NS_OK;
|
|
}
|