Pull and merge downstream code with CHUI viewer-development by way of viewer-lion

1 files changed, 1954 insertions, 0 deletions

diff --git a/indra/llui/llfolderview.cpp b/indra/llui/llfolderview.cpp
new file mode 100644
index 0000000000..8feaf654f0
--- /dev/null
+++ b/indra/llui/llfolderview.cpp
@@ -0,0 +1,1954 @@
+/** 
+ * @file llfolderview.cpp
+ * @brief Implementation of the folder view collection of classes.
+ *
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+#include "llfolderview.h"
+#include "llfolderviewmodel.h"
+#include "llclipboard.h" // *TODO: remove this once hack below gone.
+#include "llkeyboard.h"
+#include "lllineeditor.h"
+#include "llmenugl.h"
+#include "llpanel.h"
+#include "llscrollcontainer.h" // hack to allow scrolling
+#include "lltextbox.h"
+#include "lltrans.h"
+#include "llui.h"
+#include "lluictrlfactory.h"
+
+// Linden library includes
+#include "lldbstrings.h"
+#include "llfocusmgr.h"
+#include "llfontgl.h"
+#include "llgl.h" 
+#include "llrender.h"
+
+// Third-party library includes
+#include <algorithm>
+
+///----------------------------------------------------------------------------
+/// Local function declarations, constants, enums, and typedefs
+///----------------------------------------------------------------------------
+
+const S32 RENAME_WIDTH_PAD = 4;
+const S32 RENAME_HEIGHT_PAD = 1;
+const S32 AUTO_OPEN_STACK_DEPTH = 16;
+
+const S32 MINIMUM_RENAMER_WIDTH = 80;
+
+// *TODO: move in params in xml if necessary. Requires modification of LLFolderView & LLInventoryPanel Params.
+const S32 STATUS_TEXT_HPAD = 6;
+const S32 STATUS_TEXT_VPAD = 8;
+
+enum {
+	SIGNAL_NO_KEYBOARD_FOCUS = 1,
+	SIGNAL_KEYBOARD_FOCUS = 2
+};
+
+F32 LLFolderView::sAutoOpenTime = 1.f;
+
+//---------------------------------------------------------------------------
+
+// Tells all folders in a folderview to close themselves
+// For efficiency, calls setOpenArrangeRecursively().
+// The calling function must then call:
+//	LLFolderView* root = getRoot();
+//	if( root )
+//	{
+//		root->arrange( NULL, NULL );
+//		root->scrollToShowSelection();
+//	}
+// to patch things up.
+class LLCloseAllFoldersFunctor : public LLFolderViewFunctor
+{
+public:
+	LLCloseAllFoldersFunctor(BOOL close) { mOpen = !close; }
+	virtual ~LLCloseAllFoldersFunctor() {}
+	virtual void doFolder(LLFolderViewFolder* folder);
+	virtual void doItem(LLFolderViewItem* item);
+
+	BOOL mOpen;
+};
+
+
+void LLCloseAllFoldersFunctor::doFolder(LLFolderViewFolder* folder)
+{
+	folder->setOpenArrangeRecursively(mOpen);
+}
+
+// Do nothing.
+void LLCloseAllFoldersFunctor::doItem(LLFolderViewItem* item)
+{ }
+
+///----------------------------------------------------------------------------
+/// Class LLFolderViewScrollContainer
+///----------------------------------------------------------------------------
+
+// virtual
+const LLRect LLFolderViewScrollContainer::getScrolledViewRect() const
+{
+	LLRect rect = LLRect::null;
+	if (mScrolledView)
+	{
+		LLFolderView* folder_view = dynamic_cast<LLFolderView*>(mScrolledView);
+		if (folder_view)
+		{
+			S32 height = folder_view->getRect().getHeight();
+
+			rect = mScrolledView->getRect();
+			rect.setLeftTopAndSize(rect.mLeft, rect.mTop, rect.getWidth(), height);
+		}
+	}
+
+	return rect;
+}
+
+LLFolderViewScrollContainer::LLFolderViewScrollContainer(const LLScrollContainer::Params& p)
+:	LLScrollContainer(p)
+{}
+
+///----------------------------------------------------------------------------
+/// Class LLFolderView
+///----------------------------------------------------------------------------
+LLFolderView::Params::Params()
+:	title("title"),
+	use_label_suffix("use_label_suffix"),
+	allow_multiselect("allow_multiselect", true),
+	show_empty_message("show_empty_message", true),
+	use_ellipses("use_ellipses", false),
+    options_menu("options_menu", "")
+{
+	folder_indentation = -4;
+}
+
+
+// Default constructor
+LLFolderView::LLFolderView(const Params& p)
+:	LLFolderViewFolder(p),
+	mScrollContainer( NULL ),
+	mPopupMenuHandle(),
+	mAllowMultiSelect(p.allow_multiselect),
+	mShowEmptyMessage(p.show_empty_message),
+	mShowFolderHierarchy(FALSE),
+	mRenameItem( NULL ),
+	mNeedsScroll( FALSE ),
+	mUseLabelSuffix(p.use_label_suffix),
+	mPinningSelectedItem(FALSE),
+	mNeedsAutoSelect( FALSE ),
+	mAutoSelectOverride(FALSE),
+	mNeedsAutoRename(FALSE),
+	mShowSelectionContext(FALSE),
+	mShowSingleSelection(FALSE),
+	mArrangeGeneration(0),
+	mSignalSelectCallback(0),
+	mMinWidth(0),
+	mDragAndDropThisFrame(FALSE),
+	mCallbackRegistrar(NULL),
+	mParentPanel(p.parent_panel),
+	mUseEllipses(p.use_ellipses),
+	mDraggingOverItem(NULL),
+	mStatusTextBox(NULL),
+	mShowItemLinkOverlays(p.show_item_link_overlays),
+	mViewModel(p.view_model)
+{
+	mViewModel->setFolderView(this);
+	mRoot = this;
+
+	LLRect rect = p.rect;
+	LLRect new_rect(rect.mLeft, rect.mBottom + getRect().getHeight(), rect.mLeft + getRect().getWidth(), rect.mBottom);
+	setRect( rect );
+	reshape(rect.getWidth(), rect.getHeight());
+	mAutoOpenItems.setDepth(AUTO_OPEN_STACK_DEPTH);
+	mAutoOpenCandidate = NULL;
+	mAutoOpenTimer.stop();
+	mKeyboardSelection = FALSE;
+	mIndentation = p.folder_indentation;
+
+	//clear label
+	// go ahead and render root folder as usual
+	// just make sure the label ("Inventory Folder") never shows up
+	mLabel = LLStringUtil::null;
+
+	// Escape is handled by reverting the rename, not commiting it (default behavior)
+	LLLineEditor::Params params;
+	params.name("ren");
+	params.rect(rect);
+	params.font(getLabelFontForStyle(LLFontGL::NORMAL));
+	params.max_length.bytes(DB_INV_ITEM_NAME_STR_LEN);
+	params.commit_callback.function(boost::bind(&LLFolderView::commitRename, this, _2));
+	params.prevalidate_callback(&LLTextValidate::validateASCIIPrintableNoPipe);
+	params.commit_on_focus_lost(true);
+	params.visible(false);
+	mRenamer = LLUICtrlFactory::create<LLLineEditor> (params);
+	addChild(mRenamer);
+
+	// Textbox
+	LLTextBox::Params text_p;
+	LLFontGL* font = getLabelFontForStyle(mLabelStyle);
+    //mIconPad, mTextPad are set in folder_view_item.xml
+	LLRect new_r = LLRect(rect.mLeft + mIconPad,
+			      rect.mTop - mTextPad,
+			      rect.mRight,
+			      rect.mTop - mTextPad - font->getLineHeight());
+	text_p.rect(new_r);
+	text_p.name(std::string(p.name));
+	text_p.font(font);
+	text_p.visible(false);
+	text_p.parse_urls(true);
+	text_p.wrap(true); // allow multiline text. See EXT-7564, EXT-7047
+	// set text padding the same as in People panel. EXT-7047, EXT-4837
+	text_p.h_pad(STATUS_TEXT_HPAD);
+	text_p.v_pad(STATUS_TEXT_VPAD);
+	mStatusTextBox = LLUICtrlFactory::create<LLTextBox> (text_p);
+	mStatusTextBox->setFollowsLeft();
+	mStatusTextBox->setFollowsTop();
+	//addChild(mStatusTextBox);
+
+
+	// make the popup menu available
+	LLMenuGL* menu = LLUICtrlFactory::getInstance()->createFromFile<LLMenuGL>(p.options_menu, LLMenuGL::sMenuContainer, LLMenuHolderGL::child_registry_t::instance());
+	if (!menu)
+	{
+		menu = LLUICtrlFactory::getDefaultWidget<LLMenuGL>("inventory_menu");
+	}
+	menu->setBackgroundColor(LLUIColorTable::instance().getColor("MenuPopupBgColor"));
+	mPopupMenuHandle = menu->getHandle();
+
+	mViewModelItem->openItem();
+}
+
+// Destroys the object
+LLFolderView::~LLFolderView( void )
+{
+	closeRenamer();
+
+	// The release focus call can potentially call the
+	// scrollcontainer, which can potentially be called with a partly
+	// destroyed scollcontainer. Just null it out here, and no worries
+	// about calling into the invalid scroll container.
+	// Same with the renamer.
+	mScrollContainer = NULL;
+	mRenameItem = NULL;
+	mRenamer = NULL;
+	mStatusTextBox = NULL;
+
+	mAutoOpenItems.removeAllNodes();
+
+	if (mPopupMenuHandle.get()) mPopupMenuHandle.get()->die();
+
+	mAutoOpenItems.removeAllNodes();
+	clearSelection();
+	mItems.clear();
+	mFolders.clear();
+
+	mViewModel = NULL;
+}
+
+BOOL LLFolderView::canFocusChildren() const
+{
+	return FALSE;
+}
+
+void LLFolderView::addFolder( LLFolderViewFolder* folder)
+{
+	LLFolderViewFolder::addFolder(folder);
+}
+
+void LLFolderView::closeAllFolders()
+{
+	// Close all the folders
+	setOpenArrangeRecursively(FALSE, LLFolderViewFolder::RECURSE_DOWN);
+	arrangeAll();
+}
+
+void LLFolderView::openTopLevelFolders()
+{
+	for (folders_t::iterator iter = mFolders.begin();
+		 iter != mFolders.end();)
+	{
+		folders_t::iterator fit = iter++;
+		(*fit)->setOpen(TRUE);
+	}
+}
+
+// This view grows and shrinks to enclose all of its children items and folders.
+// *width should be 0
+// conform show folder state works
+S32 LLFolderView::arrange( S32* unused_width, S32* unused_height )
+	{
+	mMinWidth = 0;
+	S32 target_height;
+
+	LLFolderViewFolder::arrange(&mMinWidth, &target_height);
+
+	LLRect scroll_rect = (mScrollContainer ? mScrollContainer->getContentWindowRect() : LLRect());
+	reshape( llmax(scroll_rect.getWidth(), mMinWidth), llround(mCurHeight) );
+
+	LLRect new_scroll_rect = (mScrollContainer ? mScrollContainer->getContentWindowRect() : LLRect());
+	if (new_scroll_rect.getWidth() != scroll_rect.getWidth())
+	{
+		reshape( llmax(scroll_rect.getWidth(), mMinWidth), llround(mCurHeight) );
+	}
+
+	// move item renamer text field to item's new position
+	updateRenamerPosition();
+
+	return llround(mTargetHeight);
+}
+
+static LLFastTimer::DeclareTimer FTM_FILTER("Filter Folder View");
+
+void LLFolderView::filter( LLFolderViewFilter& filter )
+{
+	LLFastTimer t2(FTM_FILTER);
+	filter.setFilterCount(llclamp(LLUI::sSettingGroups["config"]->getS32("FilterItemsPerFrame"), 1, 5000));
+
+	getViewModelItem()->filter(filter);
+}
+
+void LLFolderView::reshape(S32 width, S32 height, BOOL called_from_parent)
+{
+	LLRect scroll_rect;
+	if (mScrollContainer)
+	{
+		LLView::reshape(width, height, called_from_parent);
+		scroll_rect = mScrollContainer->getContentWindowRect();
+	}
+	width  = llmax(mMinWidth, scroll_rect.getWidth());
+	height = llmax(llround(mCurHeight), scroll_rect.getHeight());
+
+	// Restrict width within scroll container's width
+	if (mUseEllipses && mScrollContainer)
+	{
+		width = scroll_rect.getWidth();
+	}
+	LLView::reshape(width, height, called_from_parent);
+	mReshapeSignal(mSelectedItems, FALSE);
+}
+
+void LLFolderView::addToSelectionList(LLFolderViewItem* item)
+{
+	if (item->isSelected())
+	{
+		removeFromSelectionList(item);
+	}
+	if (mSelectedItems.size())
+	{
+		mSelectedItems.back()->setIsCurSelection(FALSE);
+	}
+	item->setIsCurSelection(TRUE);
+	mSelectedItems.push_back(item);
+}
+
+void LLFolderView::removeFromSelectionList(LLFolderViewItem* item)
+{
+	if (mSelectedItems.size())
+	{
+		mSelectedItems.back()->setIsCurSelection(FALSE);
+	}
+
+	selected_items_t::iterator item_iter;
+	for (item_iter = mSelectedItems.begin(); item_iter != mSelectedItems.end();)
+	{
+		if (*item_iter == item)
+		{
+			item_iter = mSelectedItems.erase(item_iter);
+		}
+		else
+		{
+			++item_iter;
+		}
+	}
+	if (mSelectedItems.size())
+	{
+		mSelectedItems.back()->setIsCurSelection(TRUE);
+	}
+}
+
+LLFolderViewItem* LLFolderView::getCurSelectedItem( void )
+{
+	if(mSelectedItems.size())
+	{
+		LLFolderViewItem* itemp = mSelectedItems.back();
+		llassert(itemp->getIsCurSelection());
+		return itemp;
+	}
+	return NULL;
+}
+
+LLFolderView::selected_items_t& LLFolderView::getSelectedItems( void )
+{
+    return mSelectedItems;
+}
+
+// Record the selected item and pass it down the hierachy.
+BOOL LLFolderView::setSelection(LLFolderViewItem* selection, BOOL openitem,
+								BOOL take_keyboard_focus)
+{
+	mSignalSelectCallback = take_keyboard_focus ? SIGNAL_KEYBOARD_FOCUS : SIGNAL_NO_KEYBOARD_FOCUS;
+
+	if( selection == this )
+	{
+		return FALSE;
+	}
+
+	if( selection && take_keyboard_focus)
+	{
+		mParentPanel->setFocus(TRUE);
+	}
+
+	// clear selection down here because change of keyboard focus can potentially
+	// affect selection
+	clearSelection();
+
+	if(selection)
+	{
+		addToSelectionList(selection);
+	}
+
+	BOOL rv = LLFolderViewFolder::setSelection(selection, openitem, take_keyboard_focus);
+	if(openitem && selection)
+	{
+		selection->getParentFolder()->requestArrange();
+	}
+
+	llassert(mSelectedItems.size() <= 1);
+
+	return rv;
+}
+
+BOOL LLFolderView::changeSelection(LLFolderViewItem* selection, BOOL selected)
+{
+	BOOL rv = FALSE;
+
+	// can't select root folder
+	if(!selection || selection == this)
+	{
+		return FALSE;
+	}
+
+	if (!mAllowMultiSelect)
+	{
+		clearSelection();
+	}
+
+	selected_items_t::iterator item_iter;
+	for (item_iter = mSelectedItems.begin(); item_iter != mSelectedItems.end(); ++item_iter)
+	{
+		if (*item_iter == selection)
+		{
+			break;
+		}
+	}
+
+	BOOL on_list = (item_iter != mSelectedItems.end());
+
+	if(selected && !on_list)
+	{
+		addToSelectionList(selection);
+	}
+	if(!selected && on_list)
+	{
+		removeFromSelectionList(selection);
+	}
+
+	rv = LLFolderViewFolder::changeSelection(selection, selected);
+
+	mSignalSelectCallback = SIGNAL_KEYBOARD_FOCUS;
+	
+	return rv;
+}
+
+static LLFastTimer::DeclareTimer FTM_SANITIZE_SELECTION("Sanitize Selection");
+void LLFolderView::sanitizeSelection()
+{
+	LLFastTimer _(FTM_SANITIZE_SELECTION);
+	// store off current item in case it is automatically deselected
+	// and we want to preserve context
+	LLFolderViewItem* original_selected_item = getCurSelectedItem();
+
+	std::vector<LLFolderViewItem*> items_to_remove;
+	selected_items_t::iterator item_iter;
+	for (item_iter = mSelectedItems.begin(); item_iter != mSelectedItems.end(); ++item_iter)
+	{
+		LLFolderViewItem* item = *item_iter;
+
+		// ensure that each ancestor is open and potentially passes filtering
+		BOOL visible = false;
+		if(item->getViewModelItem() != NULL)
+		{
+			visible = item->getViewModelItem()->potentiallyVisible(); // initialize from filter state for this item
+		}
+		// modify with parent open and filters states
+		LLFolderViewFolder* parent_folder = item->getParentFolder();
+		// Move up through parent folders and see what's visible
+				while(parent_folder)
+				{
+			visible = visible && parent_folder->isOpen() && parent_folder->getViewModelItem()->potentiallyVisible();
+					parent_folder = parent_folder->getParentFolder();
+				}
+
+		//  deselect item if any ancestor is closed or didn't pass filter requirements.
+		if (!visible)
+		{
+			items_to_remove.push_back(item);
+		}
+
+		// disallow nested selections (i.e. folder items plus one or more ancestors)
+		// could check cached mum selections count and only iterate if there are any
+		// but that may be a premature optimization.
+		selected_items_t::iterator other_item_iter;
+		for (other_item_iter = mSelectedItems.begin(); other_item_iter != mSelectedItems.end(); ++other_item_iter)
+		{
+			LLFolderViewItem* other_item = *other_item_iter;
+			for( parent_folder = other_item->getParentFolder(); parent_folder; parent_folder = parent_folder->getParentFolder())
+			{
+				if (parent_folder == item)
+				{
+					// this is a descendent of the current folder, remove from list
+					items_to_remove.push_back(other_item);
+					break;
+				}
+			}
+		}
+
+		// Don't allow invisible items (such as root folders) to be selected.
+		if (item == getRoot())
+		{
+			items_to_remove.push_back(item);
+		}
+	}
+
+	std::vector<LLFolderViewItem*>::iterator item_it;
+	for (item_it = items_to_remove.begin(); item_it != items_to_remove.end(); ++item_it )
+	{
+		changeSelection(*item_it, FALSE); // toggle selection (also removes from list)
+	}
+
+	// if nothing selected after prior constraints...
+	if (mSelectedItems.empty())
+	{
+		// ...select first available parent of original selection
+		LLFolderViewItem* new_selection = NULL;
+		if (original_selected_item)
+		{
+			for(LLFolderViewFolder* parent_folder = original_selected_item->getParentFolder();
+				parent_folder;
+				parent_folder = parent_folder->getParentFolder())
+			{
+				if (parent_folder->getViewModelItem() && parent_folder->getViewModelItem()->potentiallyVisible())
+				{
+					// give initial selection to first ancestor folder that potentially passes the filter
+					if (!new_selection)
+					{
+						new_selection = parent_folder;
+					}
+
+					// if any ancestor folder of original item is closed, move the selection up 
+					// to the highest closed
+					if (!parent_folder->isOpen())
+					{	
+						new_selection = parent_folder;
+					}
+				}
+			}
+		}
+		else
+		{
+			new_selection = NULL;
+		}
+
+		if (new_selection)
+		{
+			setSelection(new_selection, FALSE, FALSE);
+		}
+	}
+}
+
+void LLFolderView::clearSelection()
+{
+	for (selected_items_t::const_iterator item_it = mSelectedItems.begin(); 
+		 item_it != mSelectedItems.end(); 
+		 ++item_it)
+	{
+		(*item_it)->setUnselected();
+	}
+
+	mSelectedItems.clear();
+}
+
+std::set<LLFolderViewItem*> LLFolderView::getSelectionList() const
+{
+	std::set<LLFolderViewItem*> selection;
+	std::copy(mSelectedItems.begin(), mSelectedItems.end(), std::inserter(selection, selection.begin()));
+	return selection;
+}
+
+bool LLFolderView::startDrag()
+{
+	std::vector<LLFolderViewModelItem*> selected_items;
+	selected_items_t::iterator item_it;
+
+	if (!mSelectedItems.empty())
+	{
+		for (item_it = mSelectedItems.begin(); item_it != mSelectedItems.end(); ++item_it)
+		{
+			selected_items.push_back((*item_it)->getViewModelItem());
+		}
+
+		return getFolderViewModel()->startDrag(selected_items);
+	}
+	return false;
+}
+
+void LLFolderView::commitRename( const LLSD& data )
+{
+	finishRenamingItem();
+}
+
+void LLFolderView::draw()
+{
+	//LLFontGL* font = getLabelFontForStyle(mLabelStyle);
+
+	// if cursor has moved off of me during drag and drop
+	// close all auto opened folders
+	if (!mDragAndDropThisFrame)
+	{
+		closeAutoOpenedFolders();
+	}
+
+	if (mSearchTimer.getElapsedTimeF32() > LLUI::sSettingGroups["config"]->getF32("TypeAheadTimeout") || !mSearchString.size())
+	{
+		mSearchString.clear();
+	}
+
+	if (hasVisibleChildren())
+	{
+		mStatusTextBox->setVisible( FALSE );
+	}
+	else if (mShowEmptyMessage)
+	{
+		mStatusTextBox->setValue(getFolderViewModel()->getStatusText());
+		mStatusTextBox->setVisible( TRUE );
+		
+		// firstly reshape message textbox with current size. This is necessary to
+		// LLTextBox::getTextPixelHeight works properly
+		const LLRect local_rect = getLocalRect();
+		mStatusTextBox->setShape(local_rect);
+
+		// get preferable text height...
+		S32 pixel_height = mStatusTextBox->getTextPixelHeight();
+		bool height_changed = local_rect.getHeight() != pixel_height;
+		if (height_changed)
+		{
+			// ... if it does not match current height, lets rearrange current view.
+			// This will indirectly call ::arrange and reshape of the status textbox.
+			// We should call this method to also notify parent about required rect.
+			// See EXT-7564, EXT-7047.
+			S32 height = 0;
+			S32 width = 0;
+			S32 total_height = arrange( &width, &height );
+			notifyParent(LLSD().with("action", "size_changes").with("height", total_height));
+
+			LLUI::popMatrix();
+			LLUI::pushMatrix();
+			LLUI::translate((F32)getRect().mLeft, (F32)getRect().mBottom);
+		}
+	}
+
+	// skip over LLFolderViewFolder::draw since we don't want the folder icon, label, 
+	// and arrow for the root folder
+	LLView::draw();
+
+	mDragAndDropThisFrame = FALSE;
+}
+
+void LLFolderView::finishRenamingItem( void )
+{
+	if(!mRenamer)
+	{
+		return;
+	}
+	if( mRenameItem )
+	{
+		mRenameItem->rename( mRenamer->getText() );
+	}
+
+	closeRenamer();
+
+	// List is re-sorted alphabetically, so scroll to make sure the selected item is visible.
+	scrollToShowSelection();
+}
+
+void LLFolderView::closeRenamer( void )
+{
+	if (mRenamer && mRenamer->getVisible())
+	{
+		// Triggers onRenamerLost() that actually closes the renamer.
+		LLUI::removePopup(mRenamer);
+	}
+}
+
+void LLFolderView::removeSelectedItems()
+{
+	if(getVisible() && getEnabled())
+	{
+		// just in case we're removing the renaming item.
+		mRenameItem = NULL;
+
+		// create a temporary structure which we will use to remove
+		// items, since the removal will futz with internal data
+		// structures.
+		std::vector<LLFolderViewItem*> items;
+		S32 count = mSelectedItems.size();
+		if(count == 0) return;
+		LLFolderViewItem* item = NULL;
+		selected_items_t::iterator item_it;
+		for (item_it = mSelectedItems.begin(); item_it != mSelectedItems.end(); ++item_it)
+		{
+			item = *item_it;
+			if (item && item->isRemovable())
+			{
+				items.push_back(item);
+			}
+			else
+			{
+				llinfos << "Cannot delete " << item->getName() << llendl;
+				return;
+			}
+		}
+
+		// iterate through the new container.
+		count = items.size();
+		LLUUID new_selection_id;
+		LLFolderViewItem* item_to_select = getNextUnselectedItem();
+
+		if(count == 1)
+		{
+			LLFolderViewItem* item_to_delete = items[0];
+			LLFolderViewFolder* parent = item_to_delete->getParentFolder();
+			if(parent)
+			{
+				if (item_to_delete->remove())
+				{
+					// change selection on successful delete
+					setSelection(item_to_select, item_to_select ? item_to_select->isOpen() : false, mParentPanel->hasFocus());
+				}
+			}
+			arrangeAll();
+		}
+		else if (count > 1)
+		{
+			LLDynamicArray<LLFolderViewModelItem*> listeners;
+			LLFolderViewModelItem* listener;
+
+			setSelection(item_to_select, item_to_select ? item_to_select->isOpen() : false, mParentPanel->hasFocus());
+
+			for(S32 i = 0; i < count; ++i)
+			{
+				listener = items[i]->getViewModelItem();
+				if(listener && (listeners.find(listener) == LLDynamicArray<LLFolderViewModelItem*>::FAIL))
+				{
+					listeners.put(listener);
+				}
+			}
+			listener = static_cast<LLFolderViewModelItem*>(listeners.get(0));
+			if(listener)
+			{
+				listener->removeBatch(listeners);
+			}
+		}
+		arrangeAll();
+		scrollToShowSelection();
+	}
+}
+
+void LLFolderView::autoOpenItem( LLFolderViewFolder* item )
+{
+	if ((mAutoOpenItems.check() == item) || 
+		(mAutoOpenItems.getDepth() >= (U32)AUTO_OPEN_STACK_DEPTH) ||
+		item->isOpen())
+	{
+		return;
+	}
+
+	// close auto-opened folders
+	LLFolderViewFolder* close_item = mAutoOpenItems.check();
+	while (close_item && close_item != item->getParentFolder())
+	{
+		mAutoOpenItems.pop();
+		close_item->setOpenArrangeRecursively(FALSE);
+		close_item = mAutoOpenItems.check();
+	}
+
+	item->requestArrange();
+
+	mAutoOpenItems.push(item);
+	
+	item->setOpen(TRUE);
+	LLRect content_rect = (mScrollContainer ? mScrollContainer->getContentWindowRect() : LLRect());
+	LLRect constraint_rect(0,content_rect.getHeight(), content_rect.getWidth(), 0);
+	scrollToShowItem(item, constraint_rect);
+}
+
+void LLFolderView::closeAutoOpenedFolders()
+{
+	while (mAutoOpenItems.check())
+	{
+		LLFolderViewFolder* close_item = mAutoOpenItems.pop();
+		close_item->setOpen(FALSE);
+	}
+
+	if (mAutoOpenCandidate)
+	{
+		mAutoOpenCandidate->setAutoOpenCountdown(0.f);
+	}
+	mAutoOpenCandidate = NULL;
+	mAutoOpenTimer.stop();
+}
+
+BOOL LLFolderView::autoOpenTest(LLFolderViewFolder* folder)
+{
+	if (folder && mAutoOpenCandidate == folder)
+	{
+		if (mAutoOpenTimer.getStarted())
+		{
+			if (!mAutoOpenCandidate->isOpen())
+			{
+				mAutoOpenCandidate->setAutoOpenCountdown(clamp_rescale(mAutoOpenTimer.getElapsedTimeF32(), 0.f, sAutoOpenTime, 0.f, 1.f));
+			}
+			if (mAutoOpenTimer.getElapsedTimeF32() > sAutoOpenTime)
+			{
+				autoOpenItem(folder);
+				mAutoOpenTimer.stop();
+				return TRUE;
+			}
+		}
+		return FALSE;
+	}
+
+	// otherwise new candidate, restart timer
+	if (mAutoOpenCandidate)
+	{
+		mAutoOpenCandidate->setAutoOpenCountdown(0.f);
+	}
+	mAutoOpenCandidate = folder;
+	mAutoOpenTimer.start();
+	return FALSE;
+}
+
+BOOL LLFolderView::canCopy() const
+{
+	if (!(getVisible() && getEnabled() && (mSelectedItems.size() > 0)))
+	{
+		return FALSE;
+	}
+	
+	for (selected_items_t::const_iterator selected_it = mSelectedItems.begin(); selected_it != mSelectedItems.end(); ++selected_it)
+	{
+		const LLFolderViewItem* item = *selected_it;
+		if (!item->getViewModelItem()->isItemCopyable())
+		{
+			return FALSE;
+		}
+	}
+	return TRUE;
+}
+
+// copy selected item
+void LLFolderView::copy()
+{
+	// *NOTE: total hack to clear the inventory clipboard
+	LLClipboard::instance().reset();
+	S32 count = mSelectedItems.size();
+	if(getVisible() && getEnabled() && (count > 0))
+	{
+		LLFolderViewModelItem* listener = NULL;
+		selected_items_t::iterator item_it;
+		for (item_it = mSelectedItems.begin(); item_it != mSelectedItems.end(); ++item_it)
+		{
+			listener = (*item_it)->getViewModelItem();
+			if(listener)
+			{
+				listener->copyToClipboard();
+			}
+		}
+	}
+	mSearchString.clear();
+}
+
+BOOL LLFolderView::canCut() const
+{
+	if (!(getVisible() && getEnabled() && (mSelectedItems.size() > 0)))
+	{
+		return FALSE;
+	}
+	
+	for (selected_items_t::const_iterator selected_it = mSelectedItems.begin(); selected_it != mSelectedItems.end(); ++selected_it)
+	{
+		const LLFolderViewItem* item = *selected_it;
+		const LLFolderViewModelItem* listener = item->getViewModelItem();
+
+		if (!listener || !listener->isItemRemovable())
+		{
+			return FALSE;
+		}
+	}
+	return TRUE;
+}
+
+void LLFolderView::cut()
+{
+	// clear the inventory clipboard
+	LLClipboard::instance().reset();
+	if(getVisible() && getEnabled() && (mSelectedItems.size() > 0))
+	{
+		// Find out which item will be selected once the selection will be cut
+		LLFolderViewItem* item_to_select = getNextUnselectedItem();
+		
+		// Get the selection: removeItem() modified mSelectedItems and makes iterating on it unwise
+		std::set<LLFolderViewItem*> inventory_selected = getSelectionList();
+
+		// Move each item to the clipboard and out of their folder
+		for (std::set<LLFolderViewItem*>::iterator item_it = inventory_selected.begin(); item_it != inventory_selected.end(); ++item_it)
+		{
+			LLFolderViewItem* item_to_cut = *item_it;
+			LLFolderViewModelItem* listener = item_to_cut->getViewModelItem();
+			if (listener)
+			{
+				listener->cutToClipboard();
+				listener->removeItem();
+			}
+		}
+		
+		// Update the selection
+		setSelection(item_to_select, item_to_select ? item_to_select->isOpen() : false, mParentPanel->hasFocus());
+	}
+	mSearchString.clear();
+}
+
+BOOL LLFolderView::canPaste() const
+{
+	if (mSelectedItems.empty())
+	{
+		return FALSE;
+	}
+
+	if(getVisible() && getEnabled())
+	{
+		for (selected_items_t::const_iterator item_it = mSelectedItems.begin();
+			 item_it != mSelectedItems.end(); ++item_it)
+		{
+			// *TODO: only check folders and parent folders of items
+			const LLFolderViewItem* item = (*item_it);
+			const LLFolderViewModelItem* listener = item->getViewModelItem();
+			if(!listener || !listener->isClipboardPasteable())
+			{
+				const LLFolderViewFolder* folderp = item->getParentFolder();
+				listener = folderp->getViewModelItem();
+				if (!listener || !listener->isClipboardPasteable())
+				{
+					return FALSE;
+				}
+			}
+		}
+		return TRUE;
+	}
+	return FALSE;
+}
+
+// paste selected item
+void LLFolderView::paste()
+{
+	if(getVisible() && getEnabled())
+	{
+		// find set of unique folders to paste into
+		std::set<LLFolderViewFolder*> folder_set;
+
+		selected_items_t::iterator selected_it;
+		for (selected_it = mSelectedItems.begin(); selected_it != mSelectedItems.end(); ++selected_it)
+		{
+			LLFolderViewItem* item = *selected_it;
+			LLFolderViewFolder* folder = dynamic_cast<LLFolderViewFolder*>(item);
+			if (folder == NULL)
+			{
+				folder = item->getParentFolder();
+			}
+			folder_set.insert(folder);
+		}
+
+		std::set<LLFolderViewFolder*>::iterator set_iter;
+		for(set_iter = folder_set.begin(); set_iter != folder_set.end(); ++set_iter)
+		{
+			LLFolderViewModelItem* listener = (*set_iter)->getViewModelItem();
+			if(listener && listener->isClipboardPasteable())
+			{
+				listener->pasteFromClipboard();
+			}
+		}
+	}
+	mSearchString.clear();
+}
+
+// public rename functionality - can only start the process
+void LLFolderView::startRenamingSelectedItem( void )
+{
+	// make sure selection is visible
+	scrollToShowSelection();
+
+	S32 count = mSelectedItems.size();
+	LLFolderViewItem* item = NULL;
+	if(count > 0)
+	{
+		item = mSelectedItems.front();
+	}
+	if(getVisible() && getEnabled() && (count == 1) && item && item->getViewModelItem() &&
+	   item->getViewModelItem()->isItemRenameable())
+	{
+		mRenameItem = item;
+
+		updateRenamerPosition();
+
+
+		mRenamer->setText(item->getName());
+		mRenamer->selectAll();
+		mRenamer->setVisible( TRUE );
+		// set focus will fail unless item is visible
+		mRenamer->setFocus( TRUE );
+		mRenamer->setTopLostCallback(boost::bind(&LLFolderView::onRenamerLost, this));
+		LLUI::addPopup(mRenamer);
+	}
+}
+
+BOOL LLFolderView::handleKeyHere( KEY key, MASK mask )
+{
+	BOOL handled = FALSE;
+
+	// SL-51858: Key presses are not being passed to the Popup menu.
+	// A proper fix is non-trivial so instead just close the menu.
+	LLMenuGL* menu = (LLMenuGL*)mPopupMenuHandle.get();
+	if (menu && menu->isOpen())
+	{
+		LLMenuGL::sMenuContainer->hideMenus();
+	}
+
+	LLView *item = NULL;
+	if (getChildCount() > 0)
+	{
+		item = *(getChildList()->begin());
+	}
+
+	switch( key )
+	{
+	case KEY_F2:
+		mSearchString.clear();
+		startRenamingSelectedItem();
+		handled = TRUE;
+		break;
+
+	case KEY_RETURN:
+		if (mask == MASK_NONE)
+		{
+			if( mRenameItem && mRenamer->getVisible() )
+			{
+				finishRenamingItem();
+				mSearchString.clear();
+				handled = TRUE;
+			}
+		}
+		break;
+
+	case KEY_ESCAPE:
+		if( mRenameItem && mRenamer->getVisible() )
+		{
+			closeRenamer();
+			handled = TRUE;
+		}
+		mSearchString.clear();
+		break;
+
+	case KEY_PAGE_UP:
+		mSearchString.clear();
+		if (mScrollContainer)
+		{
+		mScrollContainer->pageUp(30);
+		}
+		handled = TRUE;
+		break;
+
+	case KEY_PAGE_DOWN:
+		mSearchString.clear();
+		if (mScrollContainer)
+		{
+		mScrollContainer->pageDown(30);
+		}
+		handled = TRUE;
+		break;
+
+	case KEY_HOME:
+		mSearchString.clear();
+		if (mScrollContainer)
+		{
+		mScrollContainer->goToTop();
+		}
+		handled = TRUE;
+		break;
+
+	case KEY_END:
+		mSearchString.clear();
+		if (mScrollContainer)
+		{
+		mScrollContainer->goToBottom();
+		}
+		break;
+
+	case KEY_DOWN:
+		if((mSelectedItems.size() > 0) && mScrollContainer)
+		{
+			LLFolderViewItem* last_selected = getCurSelectedItem();
+
+			if (!mKeyboardSelection)
+			{
+				setSelection(last_selected, FALSE, TRUE);
+				mKeyboardSelection = TRUE;
+			}
+
+			LLFolderViewItem* next = NULL;
+			if (mask & MASK_SHIFT)
+			{
+				// don't shift select down to children of folders (they are implicitly selected through parent)
+				next = last_selected->getNextOpenNode(FALSE);
+				if (next)
+				{
+					if (next->isSelected())
+					{
+						// shrink selection
+						changeSelection(last_selected, FALSE);
+					}
+					else if (last_selected->getParentFolder() == next->getParentFolder())
+					{
+						// grow selection
+						changeSelection(next, TRUE);
+					}
+				}
+			}
+			else
+			{
+				next = last_selected->getNextOpenNode();
+				if( next )
+				{
+					if (next == last_selected)
+					{
+						//special case for LLAccordionCtrl
+						if(notifyParent(LLSD().with("action","select_next")) > 0 )//message was processed
+						{
+							clearSelection();
+							return TRUE;
+						}
+						return FALSE;
+					}
+					setSelection( next, FALSE, TRUE );
+				}
+				else
+				{
+					//special case for LLAccordionCtrl
+					if(notifyParent(LLSD().with("action","select_next")) > 0 )//message was processed
+					{
+						clearSelection();
+						return TRUE;
+					}
+					return FALSE;
+				}
+			}
+			scrollToShowSelection();
+			mSearchString.clear();
+			handled = TRUE;
+		}
+		break;
+
+	case KEY_UP:
+		if((mSelectedItems.size() > 0) && mScrollContainer)
+		{
+			LLFolderViewItem* last_selected = mSelectedItems.back();
+
+			if (!mKeyboardSelection)
+			{
+				setSelection(last_selected, FALSE, TRUE);
+				mKeyboardSelection = TRUE;
+			}
+
+			LLFolderViewItem* prev = NULL;
+			if (mask & MASK_SHIFT)
+			{
+				// don't shift select down to children of folders (they are implicitly selected through parent)
+				prev = last_selected->getPreviousOpenNode(FALSE);
+				if (prev)
+				{
+					if (prev->isSelected())
+					{
+						// shrink selection
+						changeSelection(last_selected, FALSE);
+					}
+					else if (last_selected->getParentFolder() == prev->getParentFolder())
+					{
+						// grow selection
+						changeSelection(prev, TRUE);
+					}
+				}
+			}
+			else
+			{
+				prev = last_selected->getPreviousOpenNode();
+				if( prev )
+				{
+					if (prev == this)
+					{
+						// If case we are in accordion tab notify parent to go to the previous accordion
+						if(notifyParent(LLSD().with("action","select_prev")) > 0 )//message was processed
+						{
+							clearSelection();
+							return TRUE;
+						}
+
+						return FALSE;
+					}
+					setSelection( prev, FALSE, TRUE );
+				}
+			}
+			scrollToShowSelection();
+			mSearchString.clear();
+
+			handled = TRUE;
+		}
+		break;
+
+	case KEY_RIGHT:
+		if(mSelectedItems.size())
+		{
+			LLFolderViewItem* last_selected = getCurSelectedItem();
+			last_selected->setOpen( TRUE );
+			mSearchString.clear();
+			handled = TRUE;
+		}
+		break;
+
+	case KEY_LEFT:
+		if(mSelectedItems.size())
+		{
+			LLFolderViewItem* last_selected = getCurSelectedItem();
+			LLFolderViewItem* parent_folder = last_selected->getParentFolder();
+			if (!last_selected->isOpen() && parent_folder && parent_folder->getParentFolder())
+			{
+				setSelection(parent_folder, FALSE, TRUE);
+			}
+			else
+			{
+				last_selected->setOpen( FALSE );
+			}
+			mSearchString.clear();
+			scrollToShowSelection();
+			handled = TRUE;
+		}
+		break;
+	}
+
+	return handled;
+}
+
+
+BOOL LLFolderView::handleUnicodeCharHere(llwchar uni_char)
+{
+	if ((uni_char < 0x20) || (uni_char == 0x7F)) // Control character or DEL
+	{
+		return FALSE;
+	}
+
+	if (uni_char > 0x7f)
+	{
+		llwarns << "LLFolderView::handleUnicodeCharHere - Don't handle non-ascii yet, aborting" << llendl;
+		return FALSE;
+	}
+
+	BOOL handled = FALSE;
+	if (mParentPanel->hasFocus())
+	{
+		// SL-51858: Key presses are not being passed to the Popup menu.
+		// A proper fix is non-trivial so instead just close the menu.
+		LLMenuGL* menu = (LLMenuGL*)mPopupMenuHandle.get();
+		if (menu && menu->isOpen())
+		{
+			LLMenuGL::sMenuContainer->hideMenus();
+		}
+
+		//do text search
+		if (mSearchTimer.getElapsedTimeF32() > LLUI::sSettingGroups["config"]->getF32("TypeAheadTimeout"))
+		{
+			mSearchString.clear();
+		}
+		mSearchTimer.reset();
+		if (mSearchString.size() < 128)
+		{
+			mSearchString += uni_char;
+		}
+		search(getCurSelectedItem(), mSearchString, FALSE);
+
+		handled = TRUE;
+	}
+
+	return handled;
+}
+
+
+BOOL LLFolderView::handleMouseDown( S32 x, S32 y, MASK mask )
+{
+	mKeyboardSelection = FALSE;
+	mSearchString.clear();
+
+	mParentPanel->setFocus(TRUE);
+
+	LLEditMenuHandler::gEditMenuHandler = this;
+
+	return LLView::handleMouseDown( x, y, mask );
+}
+
+BOOL LLFolderView::search(LLFolderViewItem* first_item, const std::string &search_string, BOOL backward)
+{
+	// get first selected item
+	LLFolderViewItem* search_item = first_item;
+
+	// make sure search string is upper case
+	std::string upper_case_string = search_string;
+	LLStringUtil::toUpper(upper_case_string);
+
+	// if nothing selected, select first item in folder
+	if (!search_item)
+	{
+		// start from first item
+		search_item = getNextFromChild(NULL);
+	}
+
+	// search over all open nodes for first substring match (with wrapping)
+	BOOL found = FALSE;
+	LLFolderViewItem* original_search_item = search_item;
+	do
+	{
+		// wrap at end
+		if (!search_item)
+		{
+			if (backward)
+			{
+				search_item = getPreviousFromChild(NULL);
+			}
+			else
+			{
+				search_item = getNextFromChild(NULL);
+			}
+			if (!search_item || search_item == original_search_item)
+			{
+				break;
+			}
+		}
+
+		const std::string current_item_label(search_item->getViewModelItem()->getSearchableName());
+		S32 search_string_length = llmin(upper_case_string.size(), current_item_label.size());
+		if (!current_item_label.compare(0, search_string_length, upper_case_string))
+		{
+			found = TRUE;
+			break;
+		}
+		if (backward)
+		{
+			search_item = search_item->getPreviousOpenNode();
+		}
+		else
+		{
+			search_item = search_item->getNextOpenNode();
+		}
+
+	} while(search_item != original_search_item);
+	
+
+	if (found)
+	{
+		setSelection(search_item, FALSE, TRUE);
+		scrollToShowSelection();
+	}
+
+	return found;
+}
+
+BOOL LLFolderView::handleDoubleClick( S32 x, S32 y, MASK mask )
+{
+	// skip LLFolderViewFolder::handleDoubleClick()
+	return LLView::handleDoubleClick( x, y, mask );
+}
+
+BOOL LLFolderView::handleRightMouseDown( S32 x, S32 y, MASK mask )
+{
+	// all user operations move keyboard focus to inventory
+	// this way, we know when to stop auto-updating a search
+	mParentPanel->setFocus(TRUE);
+
+	BOOL handled = childrenHandleRightMouseDown(x, y, mask) != NULL;
+	S32 count = mSelectedItems.size();
+	LLMenuGL* menu = (LLMenuGL*)mPopupMenuHandle.get();
+	if (   handled
+		&& ( count > 0 && (hasVisibleChildren()) ) // show menu only if selected items are visible
+		&& menu )
+	{
+		if (mCallbackRegistrar)
+        {
+			mCallbackRegistrar->pushScope();
+        }
+
+		updateMenuOptions(menu);
+	   
+		menu->updateParent(LLMenuGL::sMenuContainer);
+		LLMenuGL::showPopup(this, menu, x, y);
+		if (mCallbackRegistrar)
+        {
+			mCallbackRegistrar->popScope();
+	}
+	}
+	else
+	{
+		if (menu && menu->getVisible())
+		{
+			menu->setVisible(FALSE);
+		}
+		setSelection(NULL, FALSE, TRUE);
+	}
+	return handled;
+}
+
+// Add "--no options--" if the menu is completely blank.
+BOOL LLFolderView::addNoOptions(LLMenuGL* menu) const
+{
+	const std::string nooptions_str = "--no options--";
+	LLView *nooptions_item = NULL;
+	
+	const LLView::child_list_t *list = menu->getChildList();
+	for (LLView::child_list_t::const_iterator itor = list->begin(); 
+		 itor != list->end(); 
+		 ++itor)
+	{
+		LLView *menu_item = (*itor);
+		if (menu_item->getVisible())
+		{
+			return FALSE;
+		}
+		std::string name = menu_item->getName();
+		if (menu_item->getName() == nooptions_str)
+		{
+			nooptions_item = menu_item;
+		}
+	}
+	if (nooptions_item)
+	{
+		nooptions_item->setVisible(TRUE);
+		nooptions_item->setEnabled(FALSE);
+		return TRUE;
+	}
+	return FALSE;
+}
+
+BOOL LLFolderView::handleHover( S32 x, S32 y, MASK mask )
+{
+	return LLView::handleHover( x, y, mask );
+}
+
+BOOL LLFolderView::handleDragAndDrop(S32 x, S32 y, MASK mask, BOOL drop,
+									 EDragAndDropType cargo_type,
+									 void* cargo_data, 
+									 EAcceptance* accept,
+									 std::string& tooltip_msg)
+{
+	mDragAndDropThisFrame = TRUE;
+	// have children handle it first
+	BOOL handled = LLView::handleDragAndDrop(x, y, mask, drop, cargo_type, cargo_data,
+											 accept, tooltip_msg);
+
+	// when drop is not handled by child, it should be handled
+	// by the folder which is the hierarchy root.
+	if (!handled)
+	{
+			handled = LLFolderViewFolder::handleDragAndDrop(x, y, mask, drop, cargo_type, cargo_data, accept, tooltip_msg);
+		}
+
+	return handled;
+}
+
+void LLFolderView::deleteAllChildren()
+{
+	closeRenamer();
+	if (mPopupMenuHandle.get()) mPopupMenuHandle.get()->die();
+	mPopupMenuHandle = LLHandle<LLView>();
+	mScrollContainer = NULL;
+	mRenameItem = NULL;
+	mRenamer = NULL;
+	mStatusTextBox = NULL;
+	
+	clearSelection();
+	LLView::deleteAllChildren();
+}
+
+void LLFolderView::scrollToShowSelection()
+{
+	if ( mSelectedItems.size() )
+	{
+		mNeedsScroll = TRUE;
+	}
+}
+
+// If the parent is scroll container, scroll it to make the selection
+// is maximally visible.
+void LLFolderView::scrollToShowItem(LLFolderViewItem* item, const LLRect& constraint_rect)
+{
+	if (!mScrollContainer) return;
+
+	// don't scroll to items when mouse is being used to scroll/drag and drop
+	if (gFocusMgr.childHasMouseCapture(mScrollContainer))
+	{
+		mNeedsScroll = FALSE;
+		return;
+	}
+
+	// if item exists and is in visible portion of parent folder...
+	if(item)
+	{
+		LLRect local_rect = item->getLocalRect();
+		S32 icon_height = mIcon.isNull() ? 0 : mIcon->getHeight(); 
+		S32 label_height = getLabelFontForStyle(mLabelStyle)->getLineHeight(); 
+		// when navigating with keyboard, only move top of opened folder on screen, otherwise show whole folder
+		S32 max_height_to_show = item->isOpen() && mScrollContainer->hasFocus() ? (llmax( icon_height, label_height ) + item->getIconPad()) : local_rect.getHeight();
+		
+		// get portion of item that we want to see...
+		LLRect item_local_rect = LLRect(item->getIndentation(), 
+										local_rect.getHeight(), 
+                                        //+40 is supposed to include few first characters
+										llmin(item->getLabelXPos() - item->getIndentation() + 40, local_rect.getWidth()), 
+										llmax(0, local_rect.getHeight() - max_height_to_show));
+
+		LLRect item_doc_rect;
+
+		item->localRectToOtherView(item_local_rect, &item_doc_rect, this); 
+
+		mScrollContainer->scrollToShowRect( item_doc_rect, constraint_rect );
+
+	}
+}
+
+LLRect LLFolderView::getVisibleRect()
+{
+	S32 visible_height = (mScrollContainer ? mScrollContainer->getRect().getHeight() : 0);
+	S32 visible_width  = (mScrollContainer ? mScrollContainer->getRect().getWidth()  : 0);
+	LLRect visible_rect;
+	visible_rect.setLeftTopAndSize(-getRect().mLeft, visible_height - getRect().mBottom, visible_width, visible_height);
+	return visible_rect;
+}
+
+BOOL LLFolderView::getShowSelectionContext()
+{
+	if (mShowSelectionContext)
+	{
+		return TRUE;
+	}
+	LLMenuGL* menu = (LLMenuGL*)mPopupMenuHandle.get();
+	if (menu && menu->getVisible())
+	{
+		return TRUE;
+	}
+	return FALSE;
+}
+
+void LLFolderView::setShowSingleSelection(BOOL show)
+{
+	if (show != mShowSingleSelection)
+	{
+		mMultiSelectionFadeTimer.reset();
+		mShowSingleSelection = show;
+	}
+}
+
+static LLFastTimer::DeclareTimer FTM_AUTO_SELECT("Open and Select");
+static LLFastTimer::DeclareTimer FTM_INVENTORY("Inventory");
+
+// Main idle routine
+void LLFolderView::update()
+{
+	// If this is associated with the user's inventory, don't do anything
+	// until that inventory is loaded up.
+	LLFastTimer t2(FTM_INVENTORY);
+
+	if (getFolderViewModel()->getFilter().isModified() && getFolderViewModel()->getFilter().isNotDefault())
+	{
+		mNeedsAutoSelect = TRUE;
+	}
+	// filter to determine visibility before arranging
+	filter(getFolderViewModel()->getFilter());
+	// Clear the modified setting on the filter only if the filter count is non-zero after running the filter process
+	// Note: if the filter count is zero, then the filter most likely halted before completing the entire set of items
+	if (getFolderViewModel()->getFilter().isModified() && (getFolderViewModel()->getFilter().getFilterCount() > 0))
+	{
+		getFolderViewModel()->getFilter().clearModified();
+	}
+
+	// automatically show matching items, and select first one if we had a selection
+	if (mNeedsAutoSelect)
+	{
+		LLFastTimer t3(FTM_AUTO_SELECT);
+		// select new item only if a filtered item not currently selected
+		LLFolderViewItem* selected_itemp = mSelectedItems.empty() ? NULL : mSelectedItems.back();
+		if (!mAutoSelectOverride && (!selected_itemp || !selected_itemp->getViewModelItem()->potentiallyVisible()))
+		{
+			// these are named variables to get around gcc not binding non-const references to rvalues
+			// and functor application is inherently non-const to allow for stateful functors
+			LLSelectFirstFilteredItem functor;
+			applyFunctorRecursively(functor);
+		}
+
+		// Open filtered folders for folder views with mAutoSelectOverride=TRUE.
+		// Used by LLPlacesFolderView.
+		if (getFolderViewModel()->getFilter().showAllResults())
+		{
+			// these are named variables to get around gcc not binding non-const references to rvalues
+			// and functor application is inherently non-const to allow for stateful functors
+			LLOpenFilteredFolders functor;
+			applyFunctorRecursively(functor);
+		}
+
+		scrollToShowSelection();
+	}
+
+	BOOL filter_finished = getViewModelItem()->passedFilter()
+						&& mViewModel->contentsReady();
+	if (filter_finished 
+		|| gFocusMgr.childHasKeyboardFocus(mParentPanel)
+		|| gFocusMgr.childHasMouseCapture(mParentPanel))
+	{
+		// finishing the filter process, giving focus to the folder view, or dragging the scrollbar all stop the auto select process
+		mNeedsAutoSelect = FALSE;
+	}
+
+  BOOL is_visible = isInVisibleChain();
+
+  //Puts folders/items in proper positions
+  if ( is_visible )
+  {
+    sanitizeSelection();
+    if( needsArrange() )
+    {
+      S32 height = 0;
+      S32 width = 0;
+      S32 total_height = arrange( &width, &height );
+      notifyParent(LLSD().with("action", "size_changes").with("height", total_height));
+    }
+  }
+
+	// during filtering process, try to pin selected item's location on screen
+	// this will happen when searching your inventory and when new items arrive
+	if (!filter_finished)
+	{
+		// calculate rectangle to pin item to at start of animated rearrange
+		if (!mPinningSelectedItem && !mSelectedItems.empty())
+		{
+			// lets pin it!
+			mPinningSelectedItem = TRUE;
+
+      //Computes visible area 
+			const LLRect visible_content_rect = (mScrollContainer ? mScrollContainer->getVisibleContentRect() : LLRect());
+			LLFolderViewItem* selected_item = mSelectedItems.back();
+
+      //Computes location of selected content, content outside visible area will be scrolled to using below code
+			LLRect item_rect;
+			selected_item->localRectToOtherView(selected_item->getLocalRect(), &item_rect, this);
+			
+      //Computes intersected region of the selected content and visible area
+      LLRect overlap_rect(item_rect);
+      overlap_rect.intersectWith(visible_content_rect);
+
+      //Don't scroll when the selected content exists within the visible area
+			if (overlap_rect.getHeight() >= selected_item->getItemHeight())
+			{
+				// then attempt to keep it in same place on screen
+				mScrollConstraintRect = item_rect;
+				mScrollConstraintRect.translate(-visible_content_rect.mLeft, -visible_content_rect.mBottom);
+			}
+      //Scroll because the selected content is outside the visible area
+			else
+			{
+				// otherwise we just want it onscreen somewhere
+				LLRect content_rect = (mScrollContainer ? mScrollContainer->getContentWindowRect() : LLRect());
+				mScrollConstraintRect.setOriginAndSize(0, 0, content_rect.getWidth(), content_rect.getHeight());
+			}
+		}
+	}
+	else
+	{
+		// stop pinning selected item after folders stop rearranging
+		if (!needsArrange())
+		{
+			mPinningSelectedItem = FALSE;
+		}
+	}
+
+	LLRect constraint_rect;
+	if (mPinningSelectedItem)
+	{
+		// use last known constraint rect for pinned item
+		constraint_rect = mScrollConstraintRect;
+	}
+	else
+	{
+		// during normal use (page up/page down, etc), just try to fit item on screen
+		LLRect content_rect = (mScrollContainer ? mScrollContainer->getContentWindowRect() : LLRect());
+		constraint_rect.setOriginAndSize(0, 0, content_rect.getWidth(), content_rect.getHeight());
+	}
+
+	if (mSelectedItems.size() && mNeedsScroll)
+	{
+		scrollToShowItem(mSelectedItems.back(), constraint_rect);
+		// continue scrolling until animated layout change is done
+		if (filter_finished
+			&& (!needsArrange() || !is_visible))
+		{
+			mNeedsScroll = FALSE;
+		}
+	}
+
+	if (mSignalSelectCallback)
+	{
+		//RN: we use keyboard focus as a proxy for user-explicit actions
+		BOOL take_keyboard_focus = (mSignalSelectCallback == SIGNAL_KEYBOARD_FOCUS);
+		mSelectSignal(mSelectedItems, take_keyboard_focus);
+	}
+	mSignalSelectCallback = FALSE;
+}
+
+void LLFolderView::dumpSelectionInformation()
+{
+	llinfos << "LLFolderView::dumpSelectionInformation()" << llendl;
+	llinfos << "****************************************" << llendl;
+	selected_items_t::iterator item_it;
+	for (item_it = mSelectedItems.begin(); item_it != mSelectedItems.end(); ++item_it)
+	{
+		llinfos << "  " << (*item_it)->getName() << llendl;
+	}
+	llinfos << "****************************************" << llendl;
+}
+
+void LLFolderView::updateRenamerPosition()
+{
+	if(mRenameItem)
+	{
+		// See also LLFolderViewItem::draw()
+		S32 x = mRenameItem->getLabelXPos();
+		S32 y = mRenameItem->getRect().getHeight() - mRenameItem->getItemHeight() - RENAME_HEIGHT_PAD;
+		mRenameItem->localPointToScreen( x, y, &x, &y );
+		screenPointToLocal( x, y, &x, &y );
+		mRenamer->setOrigin( x, y );
+
+		LLRect scroller_rect(0, 0, (S32)LLUI::getWindowSize().mV[VX], 0);
+		if (mScrollContainer)
+		{
+			scroller_rect = mScrollContainer->getContentWindowRect();
+		}
+
+		S32 width = llmax(llmin(mRenameItem->getRect().getWidth() - x, scroller_rect.getWidth() - x - getRect().mLeft), MINIMUM_RENAMER_WIDTH);
+		S32 height = mRenameItem->getItemHeight() - RENAME_HEIGHT_PAD;
+		mRenamer->reshape( width, height, TRUE );
+	}
+}
+
+// Update visibility and availability (i.e. enabled/disabled) of context menu items.
+void LLFolderView::updateMenuOptions(LLMenuGL* menu)
+{
+	const LLView::child_list_t *list = menu->getChildList();
+
+	LLView::child_list_t::const_iterator menu_itor;
+	for (menu_itor = list->begin(); menu_itor != list->end(); ++menu_itor)
+	{
+		(*menu_itor)->setVisible(FALSE);
+		(*menu_itor)->pushVisible(TRUE);
+		(*menu_itor)->setEnabled(TRUE);
+	}
+
+	// Successively filter out invalid options
+
+	U32 multi_select_flag = (mSelectedItems.size() > 1 ? ITEM_IN_MULTI_SELECTION : 0x0);
+	U32 flags = multi_select_flag | FIRST_SELECTED_ITEM;
+	for (selected_items_t::iterator item_itor = mSelectedItems.begin();
+			item_itor != mSelectedItems.end();
+			++item_itor)
+	{
+		LLFolderViewItem* selected_item = (*item_itor);
+		selected_item->buildContextMenu(*menu, flags);
+		flags = multi_select_flag;
+	}
+
+	addNoOptions(menu);
+}
+
+// Refresh the context menu (that is already shown).
+void LLFolderView::updateMenu()
+{
+	LLMenuGL* menu = (LLMenuGL*)mPopupMenuHandle.get();
+	if (menu && menu->getVisible())
+	{
+		updateMenuOptions(menu);
+		menu->needsArrange(); // update menu height if needed
+	}
+}
+
+bool LLFolderView::selectFirstItem()
+{
+	for (folders_t::iterator iter = mFolders.begin();
+		 iter != mFolders.end();++iter)
+	{
+		LLFolderViewFolder* folder = (*iter );
+		if (folder->getVisible())
+		{
+			LLFolderViewItem* itemp = folder->getNextFromChild(0,true);
+			if(itemp)
+				setSelection(itemp,FALSE,TRUE);
+			return true;	
+		}
+		
+	}
+	for(items_t::iterator iit = mItems.begin();
+		iit != mItems.end(); ++iit)
+	{
+		LLFolderViewItem* itemp = (*iit);
+		if (itemp->getVisible())
+		{
+			setSelection(itemp,FALSE,TRUE);
+			return true;	
+		}
+	}
+	return false;
+}
+bool LLFolderView::selectLastItem()
+{
+	for(items_t::reverse_iterator iit = mItems.rbegin();
+		iit != mItems.rend(); ++iit)
+	{
+		LLFolderViewItem* itemp = (*iit);
+		if (itemp->getVisible())
+		{
+			setSelection(itemp,FALSE,TRUE);
+			return true;	
+		}
+	}
+	for (folders_t::reverse_iterator iter = mFolders.rbegin();
+		 iter != mFolders.rend();++iter)
+	{
+		LLFolderViewFolder* folder = (*iter);
+		if (folder->getVisible())
+		{
+			LLFolderViewItem* itemp = folder->getPreviousFromChild(0,true);
+			if(itemp)
+				setSelection(itemp,FALSE,TRUE);
+			return true;	
+		}
+	}
+	return false;
+}
+
+
+S32	LLFolderView::notify(const LLSD& info) 
+{
+	if(info.has("action"))
+	{
+		std::string str_action = info["action"];
+		if(str_action == "select_first")
+		{
+			setFocus(true);
+			selectFirstItem();
+			scrollToShowSelection();
+			return 1;
+
+		}
+		else if(str_action == "select_last")
+		{
+			setFocus(true);
+			selectLastItem();
+			scrollToShowSelection();
+			return 1;
+		}
+	}
+	return 0;
+}
+
+
+///----------------------------------------------------------------------------
+/// Local function definitions
+///----------------------------------------------------------------------------
+
+void LLFolderView::onRenamerLost()
+{
+	if (mRenamer && mRenamer->getVisible())
+	{
+		mRenamer->setVisible(FALSE);
+
+		// will commit current name (which could be same as original name)
+		mRenamer->setFocus(FALSE);
+	}
+
+	if( mRenameItem )
+	{
+		setSelection( mRenameItem, TRUE );
+		mRenameItem = NULL;
+	}
+}
+
+LLFolderViewItem* LLFolderView::getNextUnselectedItem()
+{
+	LLFolderViewItem* last_item = *mSelectedItems.rbegin();
+	LLFolderViewItem* new_selection = last_item->getNextOpenNode(FALSE);
+	while(new_selection && new_selection->isSelected())
+	{
+		new_selection = new_selection->getNextOpenNode(FALSE);
+	}
+	if (!new_selection)
+	{
+		new_selection = last_item->getPreviousOpenNode(FALSE);
+		while (new_selection && (new_selection->isInSelection()))
+		{
+			new_selection = new_selection->getPreviousOpenNode(FALSE);
+		}
+	}
+	return new_selection;
+}
+
+S32 LLFolderView::getItemHeight()
+{
+	if(!hasVisibleChildren())
+{
+		//We need to display status textbox, let's reserve some place for it
+		return llmax(0, mStatusTextBox->getTextPixelHeight());
+}
+	return 0;
+}