gecko-dev/extensions/xforms/nsXFormsAccessors.cpp

208 lines
5.5 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) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Allan Beaufour <abeaufour@novell.com>
* Olli Pettay <Olli.Pettay@helsinki.fi>
*
* 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 "nsString.h"
#include "nsIDOMElement.h"
#include "nsXFormsUtils.h"
#include "nsXFormsAccessors.h"
#include "nsDOMString.h"
#include "nsIEventStateManager.h"
#include "nsIContent.h"
#include "nsIXFormsControl.h"
#include "nsIProgrammingLanguage.h"
NS_IMPL_ISUPPORTS2(nsXFormsAccessors, nsIXFormsAccessors, nsIClassInfo)
void
nsXFormsAccessors::Destroy()
{
mElement = nsnull;
mDelegate = nsnull;
}
nsresult
nsXFormsAccessors::GetState(PRInt32 aState, PRBool *aStateVal)
{
NS_ENSURE_ARG_POINTER(aStateVal);
nsCOMPtr<nsIContent> content(do_QueryInterface(mElement));
*aStateVal = (content && (content->IntrinsicState() & aState));
return NS_OK;
}
NS_IMETHODIMP
nsXFormsAccessors::GetValue(nsAString &aValue)
{
if (mDelegate) {
mDelegate->GetValue(aValue);
} else {
SetDOMStringToNull(aValue);
}
return NS_OK;
}
NS_IMETHODIMP
nsXFormsAccessors::SetValue(const nsAString & aValue)
{
return mDelegate ? mDelegate->SetValue(aValue) : NS_OK;
}
NS_IMETHODIMP
nsXFormsAccessors::HasBoundNode(PRBool *aHasBoundNode)
{
NS_ENSURE_ARG_POINTER(aHasBoundNode);
*aHasBoundNode = PR_FALSE;
return mDelegate ? mDelegate->GetHasBoundNode(aHasBoundNode) : NS_OK;
}
NS_IMETHODIMP
nsXFormsAccessors::IsReadonly(PRBool *aStateVal)
{
return GetState(NS_EVENT_STATE_MOZ_READONLY, aStateVal);
}
NS_IMETHODIMP
nsXFormsAccessors::IsRelevant(PRBool *aStateVal)
{
return GetState(NS_EVENT_STATE_ENABLED, aStateVal);
}
NS_IMETHODIMP
nsXFormsAccessors::IsRequired(PRBool *aStateVal)
{
return GetState(NS_EVENT_STATE_REQUIRED, aStateVal);
}
NS_IMETHODIMP
nsXFormsAccessors::IsValid(PRBool *aStateVal)
{
return GetState(NS_EVENT_STATE_VALID, aStateVal);
}
NS_IMETHODIMP
nsXFormsAccessors::SetContent(nsIDOMNode *aNode, PRBool aForceUpdate)
{
NS_ENSURE_STATE(mElement);
NS_ENSURE_ARG(aNode);
nsCOMPtr<nsIDOMNode> boundNode;
nsresult rv = GetBoundNode(getter_AddRefs(boundNode));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_STATE(boundNode);
nsCOMPtr<nsIModelElementPrivate> modelPriv = nsXFormsUtils::GetModel(mElement);
NS_ENSURE_STATE(modelPriv);
return modelPriv->SetNodeContent(boundNode, aNode, aForceUpdate);
}
NS_IMETHODIMP
nsXFormsAccessors::GetBoundNode(nsIDOMNode **aBoundNode)
{
NS_ENSURE_ARG_POINTER(aBoundNode);
if (mDelegate) {
nsCOMPtr<nsIXFormsControl> control = do_QueryInterface(mDelegate);
return control->GetBoundNode(aBoundNode);
}
return NS_OK;
}
// nsIClassInfo implementation
static const nsIID sScriptingIIDs[] = {
NS_IXFORMSACCESSORS_IID
};
NS_IMETHODIMP
nsXFormsAccessors::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
return nsXFormsUtils::CloneScriptingInterfaces(sScriptingIIDs,
NS_ARRAY_LENGTH(sScriptingIIDs),
aCount, aArray);
}
NS_IMETHODIMP
nsXFormsAccessors::GetHelperForLanguage(PRUint32 language,
nsISupports **_retval)
{
*_retval = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsAccessors::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsAccessors::GetClassDescription(char * *aClassDescription)
{
*aClassDescription = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsAccessors::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsAccessors::GetImplementationLanguage(PRUint32 *aImplementationLanguage)
{
*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsAccessors::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::DOM_OBJECT;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsAccessors::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}