diff -r 0d1adf67ec1b -r 12f60d9a73b3 userguide/src/HelpCategoryView.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/userguide/src/HelpCategoryView.cpp	Tue Aug 31 15:06:12 2010 +0300
@@ -0,0 +1,133 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+#include <QStandardItemModel>
+#include <QDebug>
+
+#include <hbmainwindow.h>
+#include <hbapplication.h>
+#include <hbaction.h>
+
+#include <hbtreeview.h>
+#include <hbscrollbar.h>
+#include <hbmenu.h>
+#include <hbtoolbar.h>
+
+#include "HelpDataProvider.h"
+
+#include "HelpCategoryView.h"
+
+
+//////////////////////////////////////////////////////////////////////////////////////////////
+
+HelpCategoryView::HelpCategoryView() : 
+mListAll(NULL),
+mExpandCount(0)
+{
+}
+
+HelpCategoryView::~HelpCategoryView()
+{
+}
+
+
+////////////////////////////////////////////////////////////////////////////////////////////
+
+void HelpCategoryView::init()
+{
+	initDocMl();
+    initAllList();
+}
+
+void HelpCategoryView::initDocMl()
+{
+	initBaseDocMl();
+    mBuilder.load(QRC_DOCML_CATEGORY);
+}
+
+void HelpCategoryView::initAllList()
+{
+    mListAll = mBuilder.findWidget<HbTreeView*>(DOCML_LIST_CATEGORY_ALL);
+    mListAll->setHorizontalScrollBarPolicy(HbScrollArea::ScrollBarAlwaysOff);
+    mListAll->setModel(HelpDataProvider::instance()->getCategoryData());
+    connect(mListAll, SIGNAL(activated(const QModelIndex&)), this, SLOT(onAllListActivated(const QModelIndex&)));
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////
+
+void HelpCategoryView::expandCollapseAllList(QStandardItem* item, bool expand)
+{
+	if(item->rowCount() <= 0)
+	{
+		return;
+	}
+	mListAll->setExpanded(item->index(),expand);
+	for(int i = 0; i < item->rowCount(); i++)
+	{		
+		expandCollapseAllList(item->child(i),expand);
+	}
+}
+
+void HelpCategoryView::updateExpandCollapseAction(bool expand)
+{
+	HbAction* allAction = mBuilder.findObject<HbAction*>(DOCML_ACTION_EXPAND_COLLAPSE_ALL);
+	allAction->setText(expand ? hbTrId(TXT_EXPAND_ALL) : hbTrId(TXT_COLLAPSE_ALL));
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////
+// handle list event
+
+void HelpCategoryView::onAllListActivated(const QModelIndex& index)
+{
+    if(!index.isValid() ||          // invalid
+       index.child(0,0).isValid())  // this is a node
+    {
+		if(index.parent().isValid())
+		{
+			return;
+		}
+		
+		if(mListAll->isExpanded(index))
+		{
+			mExpandCount++;
+		}
+		else
+		{
+			mExpandCount--;
+		}
+		updateExpandCollapseAction(mExpandCount == 0);
+        return;
+    }
+
+	QString uid = mListAll->model()->data(index, UidRole).toString();
+    QString href = mListAll->model()->data(index, HrefRole).toString();
+    HelpDataProvider::instance()->setHelpContentUrl(uid, href);
+    emit activateView(HelpViewContents);
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////
+// handle menu event
+void HelpCategoryView::onExpandOrCollapseAll()
+{
+	bool needExpand = (mExpandCount == 0);
+	QStandardItemModel* model = (QStandardItemModel*)(mListAll->model());
+	expandCollapseAllList(model->invisibleRootItem(),needExpand);
+	mExpandCount = needExpand ?  model->invisibleRootItem()->rowCount() : 0;
+	updateExpandCollapseAction(mExpandCount == 0);
+}
+
+// end of file