mirror of
https://github.com/rn10950/RetroZilla.git
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140 lines
4.0 KiB
C++
140 lines
4.0 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 XForms support.
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*
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* The Initial Developer of the Original Code is
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* Novell, Inc.
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* Portions created by the Initial Developer are Copyright (C) 2004
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Allan Beaufour <abeaufour@novell.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 the GNU General Public License Version 2 or later (the "GPL"), or
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* 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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#include "nsAutoPtr.h"
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#include "nsCOMPtr.h"
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#include "nsString.h"
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#include "nsIDOM3Node.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMNodeList.h"
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#include "nsIDOMEventTarget.h"
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#include "nsIDOMXPathResult.h"
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#include "nsIDOMHTMLDivElement.h"
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#include "nsXFormsControlStub.h"
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#include "nsIModelElementPrivate.h"
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#include "nsXFormsUtils.h"
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#include "nsXFormsDelegateStub.h"
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#ifdef DEBUG
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// #define DEBUG_XF_GROUP
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#endif
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/**
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* Implementation of the XForms \<group\> control.
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*
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* @see http://www.w3.org/TR/xforms/slice9.html#id2631290
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*
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* @todo XXX: If a \<label\> is the first element child for \<group\> it is the
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* label for the entire group
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*
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* @todo XXX: With some small adjustments we could let nsXFormsContextContainer
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* implement group, and get rid of this class (XXX).
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*/
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class nsXFormsGroupElement : public nsXFormsDelegateStub
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{
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protected:
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/** Tries to focus a child form control.*/
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PRBool TryFocusChildControl(nsIDOMNode *aParent);
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public:
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// nsIXFormsControl
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NS_IMETHOD TryFocus(PRBool *aOK);
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#ifdef DEBUG_smaug
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virtual const char* Name() { return "group"; }
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#endif
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};
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PRBool
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nsXFormsGroupElement::TryFocusChildControl(nsIDOMNode* aParent)
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{
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if (!aParent)
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return PR_FALSE;
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nsCOMPtr<nsIDOMNodeList> children;
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nsresult rv = aParent->GetChildNodes(getter_AddRefs(children));
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if (NS_FAILED(rv))
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return PR_FALSE;
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PRUint32 childCount = 0;
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children->GetLength(&childCount);
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nsCOMPtr<nsIDOMNode> child;
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for (PRUint32 i = 0; i < childCount; ++i) {
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children->Item(i, getter_AddRefs(child));
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nsCOMPtr<nsIXFormsControl> control(do_QueryInterface(child));
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PRBool focus = PR_FALSE;
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if (control) {
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control->TryFocus(&focus);
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if (focus)
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return PR_TRUE;
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}
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focus = TryFocusChildControl(child);
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if (focus)
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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NS_IMETHODIMP
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nsXFormsGroupElement::TryFocus(PRBool* aOK)
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{
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*aOK = PR_FALSE;
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if (GetRelevantState()) {
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*aOK = TryFocusChildControl(mElement);
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}
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return NS_OK;
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}
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// Factory
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NS_HIDDEN_(nsresult)
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NS_NewXFormsGroupElement(nsIXTFElement **aResult)
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{
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*aResult = new nsXFormsGroupElement();
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if (!*aResult)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(*aResult);
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return NS_OK;
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}
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