pjs/extensions/xforms/nsXFormsContextContainer.h

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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
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Aaron Reed (aaronr@us.ibm.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 ***** */
#ifndef nsXFormsContextControl_h_
#define nsXFormsContextControl_h_
#include "nsCOMPtr.h"
#include "nsAutoPtr.h"
#include "nsIXTFElementWrapper.h"
#include "nsIXFormsRepeatItemElement.h"
#include "nsIDOMEvent.h"
#include "nsIDOM3Node.h"
#include "nsXFormsControlStub.h"
class nsXFormsContextContainer;
class nsXFormsFocusListener : public nsIDOMEventListener {
public:
nsXFormsFocusListener(nsXFormsContextContainer* aContainer)
: mContainer(aContainer) {}
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMEVENTLISTENER
void Detach()
{
mContainer = nsnull;
}
protected:
nsXFormsContextContainer* mContainer;
};
/**
* Implementation of \<contextcontainer\>.
*
* \<contextcontainer\> is a pseudo-element that is wrapped around each row in
* an "unrolled" \<repeat\>. @see nsXFormsRepeatElement
*
* @todo Support ::repeat-item and ::repeat-index pseudo-elements. (XXX)
* @see http://www.w3.org/TR/xforms/sliceF.html#id2645142
* @see http://bugzilla.mozilla.org/show_bug.cgi?id=271724
*/
class nsXFormsContextContainer : public nsXFormsControlStub,
public nsIXFormsRepeatItemElement
{
protected:
/** The handler for the focus event */
nsRefPtr<nsXFormsFocusListener> mFocusListener;
/** The context position for the element */
PRInt32 mContextPosition;
/** The context size for the element */
PRInt32 mContextSize;
/** Does this element have the repeat-index? */
PRPackedBool mHasIndex;
/** Has context changed since last bind? */
PRPackedBool mContextIsDirty;
public:
nsXFormsContextContainer()
: mContextPosition(1), mContextSize(1), mHasIndex(PR_FALSE),
mContextIsDirty(PR_FALSE) {}
NS_DECL_ISUPPORTS_INHERITED
// nsIXTFElement overrides
NS_IMETHOD CloneState(nsIDOMElement *aElement);
NS_IMETHOD DocumentChanged(nsIDOMDocument *aNewDocument);
// nsIXFormsControl
NS_IMETHOD Bind(PRBool *aContextChanged);
NS_IMETHOD SetContext(nsIDOMNode *aContextNode,
PRInt32 aContextPosition,
PRInt32 aContextSize);
NS_IMETHOD GetContext(nsAString &aModelID,
nsIDOMNode **aContextNode,
PRInt32 *aContextPosition,
PRInt32 *aContextSize);
NS_IMETHOD IsEventTarget(PRBool *aOK);
// nsIXFormsRepeatItemElement
NS_DECL_NSIXFORMSREPEATITEMELEMENT
nsresult HandleFocus(nsIDOMEvent *aEvent);
// Overriding to make sure only appropriate values can be set.
void SetRepeatState(nsRepeatState aState);
#ifdef DEBUG_smaug
virtual const char* Name() {
if (mElement) {
nsAutoString localName;
mElement->GetLocalName(localName);
return NS_ConvertUTF16toUTF8(localName).get();
}
return "contextcontainer(inline?)";
}
#endif
};
/* Factory methods */
NS_HIDDEN_(nsresult)
NS_NewXFormsContextContainer(nsIXTFElement **aResult);
#endif