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nsXFormsContextContainer.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is Mozilla XForms support.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * IBM Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 2007
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *  Aaron Reed (aaronr@us.ibm.com)
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either the GNU General Public License Version 2 or later (the "GPL"), or
00027  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
00029  * of those above. If you wish to allow use of your version of this file only
00030  * under the terms of either the GPL or the LGPL, and not to allow others to
00031  * use your version of this file under the terms of the MPL, indicate your
00032  * decision by deleting the provisions above and replace them with the notice
00033  * and other provisions required by the GPL or the LGPL. If you do not delete
00034  * the provisions above, a recipient may use your version of this file under
00035  * the terms of any one of the MPL, the GPL or the LGPL.
00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #ifndef nsXFormsContextControl_h_
00040 #define nsXFormsContextControl_h_
00041 
00042 #include "nsCOMPtr.h"
00043 #include "nsAutoPtr.h"
00044 
00045 #include "nsIXTFElementWrapper.h"
00046 #include "nsIXFormsRepeatItemElement.h"
00047 #include "nsIDOMEvent.h"
00048 #include "nsIDOM3Node.h"
00049 #include "nsXFormsControlStub.h"
00050 
00051 class nsXFormsContextContainer;
00052 
00053 class nsXFormsFocusListener : public nsIDOMEventListener {
00054 public:
00055   nsXFormsFocusListener(nsXFormsContextContainer* aContainer)
00056   : mContainer(aContainer) {}
00057 
00058   NS_DECL_ISUPPORTS
00059   NS_DECL_NSIDOMEVENTLISTENER
00060   void Detach()
00061   {
00062     mContainer = nsnull;
00063   }
00064 protected:
00065   nsXFormsContextContainer* mContainer;
00066 };
00067 
00078 class nsXFormsContextContainer : public nsXFormsBindableControlStub,
00079                                  public nsIXFormsRepeatItemElement
00080 {
00081 protected:
00083   nsRefPtr<nsXFormsFocusListener> mFocusListener;
00084 
00086   PRInt32 mContextPosition;
00087 
00089   PRInt32 mContextSize;
00090 
00092   PRPackedBool mHasIndex;
00093 
00095   PRPackedBool mContextIsDirty;
00096 
00097 public:
00098   nsXFormsContextContainer()
00099     : mContextPosition(1), mContextSize(1), mHasIndex(PR_FALSE),
00100       mContextIsDirty(PR_FALSE) {}
00101 
00102   NS_DECL_ISUPPORTS_INHERITED
00103 
00104   // nsIXTFElement overrides
00105   NS_IMETHOD CloneState(nsIDOMElement *aElement);
00106   NS_IMETHOD DocumentChanged(nsIDOMDocument *aNewDocument);
00107 
00108   // nsIXFormsControl
00109   NS_IMETHOD Bind(PRBool *aContextChanged);
00110   NS_IMETHOD SetContext(nsIDOMNode *aContextNode,
00111                         PRInt32     aContextPosition,
00112                         PRInt32     aContextSize);
00113   NS_IMETHOD GetContext(nsAString   &aModelID,
00114                         nsIDOMNode **aContextNode,
00115                         PRInt32     *aContextPosition,
00116                         PRInt32     *aContextSize);
00117   NS_IMETHOD IsEventTarget(PRBool *aOK);
00118 
00119   // nsIXFormsRepeatItemElement
00120   NS_DECL_NSIXFORMSREPEATITEMELEMENT
00121 
00122   nsresult HandleFocus(nsIDOMEvent *aEvent);
00123 
00124   // Overriding to make sure only appropriate values can be set.
00125   void SetRepeatState(nsRepeatState aState);
00126 
00127 #ifdef DEBUG_smaug
00128   virtual const char* Name() {
00129     if (mElement) {
00130       nsAutoString localName;
00131       mElement->GetLocalName(localName);
00132       return NS_ConvertUTF16toUTF8(localName).get();
00133     }
00134     return "contextcontainer(inline?)";
00135   }
00136 #endif
00137 };
00138 
00139 /* Factory methods */
00140 NS_HIDDEN_(nsresult)
00141 NS_NewXFormsContextContainer(nsIXTFElement **aResult);
00142 #endif