pjs/extensions/xforms/nsXFormsDelegateStub.cpp

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/* -*- 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 "nsIDOMDocument.h"
#include "nsIDOM3Node.h"
#include "nsIDOMEventTarget.h"
#include "nsIDOMEvent.h"
#include "nsIDOMUIEvent.h"
#include "nsIDOMDocumentView.h"
#include "nsIDOMAbstractView.h"
#include "nsIDOMDocumentEvent.h"
#include "nsDOMString.h"
#include "nsIModelElementPrivate.h"
#include "nsIXFormsUIWidget.h"
#include "nsXFormsAtoms.h"
#include "nsXFormsDelegateStub.h"
#include "nsXFormsUtils.h"
#include "nsIServiceManager.h"
#include "nsXFormsModelElement.h"
NS_IMPL_ISUPPORTS_INHERITED2(nsXFormsDelegateStub,
nsXFormsBindableControlStub,
nsIDelegateInternal,
nsIXFormsDelegate)
NS_IMETHODIMP
nsXFormsDelegateStub::WillChangeDocument(nsIDOMDocument *aNewDocument)
{
mRepeatState = eType_Unknown;
return nsXFormsBindableControlStub::WillChangeDocument(aNewDocument);
}
NS_IMETHODIMP
nsXFormsDelegateStub::WillChangeParent(nsIDOMElement *aNewParent)
{
mRepeatState = eType_Unknown;
return nsXFormsBindableControlStub::WillChangeParent(aNewParent);
}
NS_IMETHODIMP
nsXFormsDelegateStub::OnCreated(nsIXTFBindableElementWrapper *aWrapper)
{
nsresult rv = nsXFormsBindableControlStub::OnCreated(aWrapper);
NS_ENSURE_SUCCESS(rv, rv);
aWrapper->SetNotificationMask(kStandardNotificationMask |
nsIXTFElement::NOTIFY_WILL_CHANGE_PARENT);
return rv;
}
NS_IMETHODIMP
nsXFormsDelegateStub::OnDestroyed()
{
nsXFormsModelElement::CancelPostRefresh(this);
if (mAccessor) {
mAccessor->Destroy();
}
return nsXFormsBindableControlStub::OnDestroyed();
}
// nsIXFormsControl
NS_IMETHODIMP
nsXFormsDelegateStub::Refresh()
{
if (mRepeatState == eType_Template)
return NS_OK_XFORMS_NOREFRESH;
const nsVoidArray* list = nsPostRefresh::PostRefreshList();
if (list && list->IndexOf(this) >= 0) {
// This control will be refreshed later.
return NS_OK_XFORMS_NOREFRESH;
}
nsresult rv = nsXFormsBindableControlStub::Refresh();
NS_ENSURE_SUCCESS(rv, rv);
SetMozTypeAttribute();
nsCOMPtr<nsIXFormsUIWidget> widget = do_QueryInterface(mElement);
return widget ? widget->Refresh() : NS_OK;
}
NS_IMETHODIMP
nsXFormsDelegateStub::TryFocus(PRBool* aOK)
{
*aOK = PR_FALSE;
if (GetRelevantState()) {
nsCOMPtr<nsIXFormsUIWidget> widget = do_QueryInterface(mElement);
if (widget) {
widget->Focus(aOK);
}
}
return NS_OK;
}
// nsIXFormsDelegate
NS_IMETHODIMP
nsXFormsDelegateStub::GetValue(nsAString& aValue)
{
SetDOMStringToNull(aValue);
if (mBoundNode) {
nsXFormsUtils::GetNodeValue(mBoundNode, aValue);
}
return NS_OK;
}
NS_IMETHODIMP
nsXFormsDelegateStub::SetValue(const nsAString& aValue)
{
if (!mBoundNode || !mModel)
return NS_OK;
PRBool changed;
nsresult rv = mModel->SetNodeValue(mBoundNode, aValue, PR_TRUE, &changed);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
nsXFormsDelegateStub::GetHasBoundNode(PRBool *aHasBoundNode)
{
NS_ENSURE_ARG_POINTER(aHasBoundNode);
*aHasBoundNode = mBoundNode ? PR_TRUE : PR_FALSE;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsDelegateStub::ReportError(const nsAString& aErrorMsg)
{
const nsPromiseFlatString& flat = PromiseFlatString(aErrorMsg);
nsXFormsUtils::ReportError(flat, mElement);
return NS_OK;
}
NS_IMETHODIMP
nsXFormsDelegateStub::WidgetAttached()
{
if (UpdateRepeatState() == eType_Template)
return NS_OK;
if (HasBindingAttribute()) {
// If control is bounded to instance data then we should ask for refresh
// only when model is loaded entirely. The reason is control is refreshed
// by model when it get loaded.
if (!nsXFormsUtils::IsDocumentReadyForBind(mElement))
return NS_OK;
}
nsXFormsModelElement::NeedsPostRefresh(this);
return NS_OK;
}
// nsXFormsDelegateStub
nsRepeatState
nsXFormsDelegateStub::UpdateRepeatState()
{
mRepeatState = eType_NotApplicable;
nsCOMPtr<nsIDOMNode> parent;
mElement->GetParentNode(getter_AddRefs(parent));
while (parent) {
if (nsXFormsUtils::IsXFormsElement(parent, NS_LITERAL_STRING("contextcontainer"))) {
mRepeatState = eType_GeneratedContent;
break;
}
if (nsXFormsUtils::IsXFormsElement(parent, NS_LITERAL_STRING("repeat"))) {
mRepeatState = eType_Template;
break;
}
if (nsXFormsUtils::IsXFormsElement(parent, NS_LITERAL_STRING("itemset"))) {
mRepeatState = eType_Template;
break;
}
nsCOMPtr<nsIDOMNode> tmp;
parent->GetParentNode(getter_AddRefs(tmp));
parent = tmp;
}
return mRepeatState;
}
void
nsXFormsDelegateStub::SetMozTypeAttribute()
{
NS_NAMED_LITERAL_STRING(mozTypeNs, NS_NAMESPACE_MOZ_XFORMS_TYPE);
NS_NAMED_LITERAL_STRING(mozType, "type");
if (mModel && mBoundNode) {
nsAutoString type, ns;
if (NS_FAILED(mModel->GetTypeAndNSFromNode(mBoundNode, type, ns))) {
mElement->RemoveAttributeNS(mozTypeNs, mozType);
return;
}
ns.AppendLiteral("#");
ns.Append(type);
mElement->SetAttributeNS(mozTypeNs, mozType, ns);
} else {
mElement->RemoveAttributeNS(mozTypeNs, mozType);
}
}
NS_IMETHODIMP
nsXFormsDelegateStub::GetXFormsAccessors(nsIXFormsAccessors **aAccessor)
{
if (!mAccessor) {
mAccessor = new nsXFormsAccessors(this, mElement);
if (!mAccessor) {
return NS_ERROR_OUT_OF_MEMORY;
}
}
NS_ADDREF(*aAccessor = mAccessor);
return NS_OK;
}