зеркало из https://github.com/mozilla/pjs.git
139 строки
4.7 KiB
C++
139 строки
4.7 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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* Olli Pettay.
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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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* Olli Pettay <Olli.Pettay@helsinki.fi> (original author)
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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 of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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 "nsXFormsActionModuleBase.h"
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#include "nsXFormsActionElement.h"
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#include "nsIDOM3Node.h"
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#include "nsIDOMXPathResult.h"
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#include "nsIDOMDocument.h"
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#include "nsIDOMEvent.h"
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#include "nsIDOMElement.h"
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#include "nsIXFormsModelElement.h"
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#include "nsXFormsModelElement.h"
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#include "nsXFormsUtils.h"
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class nsXFormsSetValueElement : public nsXFormsActionModuleBase
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{
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public:
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nsXFormsSetValueElement();
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NS_DECL_NSIXFORMSACTIONMODULEELEMENT
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};
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nsXFormsSetValueElement::nsXFormsSetValueElement()
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{
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}
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NS_IMETHODIMP
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nsXFormsSetValueElement::HandleAction(nsIDOMEvent* aEvent,
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nsIXFormsActionElement *aParentAction)
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{
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if (!mElement)
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return NS_OK;
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nsCOMPtr<nsIModelElementPrivate> modelPriv;
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nsCOMPtr<nsIDOMXPathResult> result;
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nsresult rv =
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nsXFormsUtils:: EvaluateNodeBinding(mElement,
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nsXFormsUtils::ELEMENT_WITH_MODEL_ATTR,
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NS_LITERAL_STRING("ref"),
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EmptyString(),
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nsIDOMXPathResult::FIRST_ORDERED_NODE_TYPE,
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getter_AddRefs(modelPriv),
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getter_AddRefs(result));
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NS_ENSURE_SUCCESS(rv, rv);
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if (!result | !modelPriv)
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return NS_OK;
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nsCOMPtr<nsIDOMNode> singleNode;
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result->GetSingleNodeValue(getter_AddRefs(singleNode));
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if (!singleNode)
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return NS_OK;
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nsAutoString value;
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nsAutoString valueAttr;
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mElement->GetAttribute(NS_LITERAL_STRING("value"), valueAttr);
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if(!valueAttr.IsEmpty()) {
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// According to the XForms Errata, the context node for the XPath expression
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// stored in @value should be the node that setvalue is bound to.
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nsCOMPtr<nsIDOMXPathResult> xpResult =
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nsXFormsUtils::EvaluateXPath(valueAttr, singleNode, mElement,
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nsIDOMXPathResult::STRING_TYPE);
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if (!xpResult)
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return NS_OK;
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xpResult->GetStringValue(value);
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}
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else {
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nsCOMPtr<nsIDOM3Node> n3(do_QueryInterface(mElement));
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n3->GetTextContent(value);
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}
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PRBool changed;
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rv = modelPriv->SetNodeValue(singleNode, value, &changed);
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NS_ENSURE_SUCCESS(rv, rv);
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if (changed) {
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nsCOMPtr<nsIDOMNode> model = do_QueryInterface(modelPriv);
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NS_ENSURE_STATE(model);
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if (aParentAction) {
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aParentAction->SetRecalculate(model, PR_TRUE);
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aParentAction->SetRevalidate(model, PR_TRUE);
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aParentAction->SetRefresh(model, PR_TRUE);
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} else {
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nsXFormsUtils::DispatchEvent(model, eEvent_Recalculate);
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nsXFormsUtils::DispatchEvent(model, eEvent_Revalidate);
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nsXFormsUtils::DispatchEvent(model, eEvent_Refresh);
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}
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}
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return NS_OK;
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}
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NS_HIDDEN_(nsresult)
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NS_NewXFormsSetValueElement(nsIXTFElement **aResult)
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{
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*aResult = new nsXFormsSetValueElement();
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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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