1 files changed, 493 insertions, 130 deletions

diff --git a/indra/newview/llsidetray.cpp b/indra/newview/llsidetray.cpp
index 85b6e0dec4..631b244785 100644
--- a/indra/newview/llsidetray.cpp
+++ b/indra/newview/llsidetray.cpp
@@ -32,6 +32,8 @@
 #include "llappviewer.h"
 #include "llbottomtray.h"
 #include "llfloaterreg.h"
+#include "llfirstuse.h"
+#include "llhints.h"
 #include "llsidetray.h"
 #include "llviewerwindow.h"
 #include "llaccordionctrl.h"
@@ -49,6 +51,10 @@
 #include "llwindow.h"//for SetCursor
 #include "lltransientfloatermgr.h"
 
+#include "llsidepanelappearance.h"
+
+#include "llsidetraylistener.h"
+
 //#include "llscrollcontainer.h"
 
 using namespace std;
@@ -57,6 +63,8 @@ using namespace LLNotificationsUI;
 static LLRootViewRegistry::Register<LLSideTray>	t1("side_tray");
 static LLDefaultChildRegistry::Register<LLSideTrayTab>	t2("sidetray_tab");
 
+static const S32 BOTTOM_BAR_PAD = 5;
+
 static const std::string COLLAPSED_NAME = "<<";
 static const std::string EXPANDED_NAME  = ">>";
 
@@ -65,6 +73,8 @@ static const std::string TAB_PANEL_CAPTION_TITLE_BOX = "sidetray_tab_title";
 
 LLSideTray* LLSideTray::sInstance = 0;
 
+static LLSideTrayListener sSideTrayListener(LLSideTray::getInstance);
+
 // static
 LLSideTray* LLSideTray::getInstance()
 {
@@ -90,6 +100,7 @@ bool	LLSideTray::instanceCreated	()
 
 class LLSideTrayTab: public LLPanel
 {
+	LOG_CLASS(LLSideTrayTab);
 	friend class LLUICtrlFactory;
 	friend class LLSideTray;
 public:
@@ -112,6 +123,10 @@ public:
 protected:
 	LLSideTrayTab(const Params& params);
 	
+	void			dock(LLFloater* floater_tab);
+	void			undock(LLFloater* floater_tab);
+
+	LLSideTray*		getSideTray();
 	
 public:
 	virtual ~LLSideTrayTab();
@@ -128,8 +143,12 @@ public:
 	const std::string& getTabTitle() const { return mTabTitle;}
 	
 	void			onOpen		(const LLSD& key);
+	
+	void			toggleTabDocked(bool toggle_floater = true);
+	void			setDocked(bool dock);
+	bool			isDocked() const;
 
-	void			toggleTabDocked();
+	BOOL			handleScrollWheel(S32 x, S32 y, S32 clicks);
 
 	LLPanel *getPanel();
 private:
@@ -149,8 +168,6 @@ LLSideTrayTab::LLSideTrayTab(const Params& p)
 	mDescription(p.description),
 	mMainPanel(NULL)
 {
-	// Necessary for focus movement among child controls
-	setFocusRoot(TRUE);
 }
 
 LLSideTrayTab::~LLSideTrayTab()
@@ -176,7 +193,8 @@ BOOL LLSideTrayTab::postBuild()
 	
 	title_panel->getChild<LLTextBox>(TAB_PANEL_CAPTION_TITLE_BOX)->setValue(mTabTitle);
 
-	getChild<LLButton>("dock")->setCommitCallback(boost::bind(&LLSideTrayTab::toggleTabDocked, this));
+	getChild<LLButton>("undock")->setCommitCallback(boost::bind(&LLSideTrayTab::setDocked, this, false));
+	getChild<LLButton>("dock")->setCommitCallback(boost::bind(&LLSideTrayTab::setDocked, this, true));
 
 	return true;
 }
@@ -210,64 +228,207 @@ void	LLSideTrayTab::onOpen		(const LLSD& key)
 		panel->onOpen(key);
 }
 
-void LLSideTrayTab::toggleTabDocked()
+// Attempts to get the existing side tray instance.
+// Needed to avoid recursive calls of LLSideTray::getInstance().
+LLSideTray* LLSideTrayTab::getSideTray()
+{
+	// First, check if the side tray is our parent (i.e. we're attached).
+	LLSideTray* side_tray = dynamic_cast<LLSideTray*>(getParent());
+	if (!side_tray)
+	{
+		// Detached? Ok, check if the instance exists at all/
+		if (LLSideTray::instanceCreated())
+		{
+			side_tray = LLSideTray::getInstance();
+		}
+		else
+		{
+			llerrs << "No safe way to get the side tray instance" << llendl;
+		}
+	}
+
+	return side_tray;
+}
+
+void LLSideTrayTab::toggleTabDocked(bool toggle_floater /* = true */)
 {
-	LLFloater* floater_tab = LLFloaterReg::getInstance("side_bar_tab", LLSD().with("name", mTabTitle));
+	// *FIX: Calling this method twice per frame would crash the viewer.
+
+	std::string tab_name = getName();
+
+	LLFloater* floater_tab = LLFloaterReg::getInstance("side_bar_tab", tab_name);
 	if (!floater_tab) return;
 
-	LLFloaterReg::toggleInstance("side_bar_tab", LLSD().with("name", mTabTitle));
+	bool docking = !isDocked();
 
-	LLSideTray* side_tray = LLSideTray::getInstance();
+	// Hide the "Tear Off" button when a tab gets undocked
+	// and show "Dock" button instead.
+	getChild<LLButton>("undock")->setVisible(docking);
+	getChild<LLButton>("dock")->setVisible(!docking);
 
-	if (LLFloater::isShown(floater_tab))
+	if (docking)
 	{
-		// Remove the tab from Side Tray's tabs list.
-		// We have to do it despite removing the tab from Side Tray's child view tree
-		// by addChild(). Otherwise the tab could be accessed by the pointer in LLSideTray::mTabs.
-		if (!side_tray->removeTab(this))
-		{
-			llwarns << "Failed to remove tab " << getName() << " from side tray" << llendl;
-			return;
-		}
+		dock(floater_tab);
+	}
+	else
+	{
+		undock(floater_tab);
+	}
+
+	// Open/close the floater *after* we reparent the tab panel,
+	// so that it doesn't receive redundant visibility change notifications.
+	if (toggle_floater)
+	{
+		LLFloaterReg::toggleInstance("side_bar_tab", tab_name);
+	}
+}
+
+// Same as toggleTabDocked() apart from making sure that we do exactly what we want.
+void LLSideTrayTab::setDocked(bool dock)
+{
+	if (isDocked() == dock)
+	{
+		llwarns << "Tab " << getName() << " is already " << (dock ? "docked" : "undocked") << llendl;
+		return;
+	}
 
-		setVisible(true); // *HACK: restore visibility after being hidden by LLSideTray::selectTabByName().
-		floater_tab->addChild(this);
-		floater_tab->setTitle(mTabTitle);
+	toggleTabDocked();
+}
 
-		LLRect rect = side_tray->getLocalRect();
-		floater_tab->reshape(rect.getWidth(), rect.getHeight());
+bool LLSideTrayTab::isDocked() const
+{
+	return dynamic_cast<LLSideTray*>(getParent()) != NULL;
+}
 
-		rect.mTop -= floater_tab->getHeaderHeight();
-		setRect(rect);
-		reshape(rect.getWidth(), rect.getHeight());
+BOOL LLSideTrayTab::handleScrollWheel(S32 x, S32 y, S32 clicks)
+{
+	// Let children handle the event
+	LLUICtrl::handleScrollWheel(x, y, clicks);
 
-		// Set FOLLOWS_ALL flag for the tab to follow floater dimensions upon resizing.
-		setFollowsAll();
+	// and then eat it to prevent in-world scrolling (STORM-351).
+	return TRUE;
+}
 
-		if (!side_tray->getCollapsed())
-		{
-			side_tray->collapseSideBar();
-		}
+void LLSideTrayTab::dock(LLFloater* floater_tab)
+{
+	LLSideTray* side_tray = getSideTray();
+	if (!side_tray) return;
+
+	// Before docking the tab, reset its (and its children's) transparency to default (STORM-688).
+	floater_tab->updateTransparency(TT_DEFAULT);
+
+	if (!side_tray->addTab(this))
+	{
+		llwarns << "Failed to add tab " << getName() << " to side tray" << llendl;
+		return;
+	}
+
+	setRect(side_tray->getLocalRect());
+	reshape(getRect().getWidth(), getRect().getHeight());
+
+	// Select the re-docked tab.
+	side_tray->selectTabByName(getName());
+
+	if (side_tray->getCollapsed())
+	{
+		side_tray->expandSideBar(false);
+	}
+}
+
+static void on_minimize(LLSidepanelAppearance* panel, LLSD minimized)
+{
+	if (!panel) return;
+	bool visible = !minimized.asBoolean();
+	LLSD visibility;
+	visibility["visible"] = visible;
+	// Do not reset accordion state on minimize (STORM-375)
+	visibility["reset_accordion"] = false;
+	panel->updateToVisibility(visibility);
+}
+
+void LLSideTrayTab::undock(LLFloater* floater_tab)
+{
+	LLSideTray* side_tray = getSideTray();
+	if (!side_tray) return;
+
+	// Remember whether the tab have been active before detaching
+	// because removeTab() will change active tab.
+	bool was_active = side_tray->getActiveTab() == this;
+
+	// Remove the tab from Side Tray's tabs list.
+	// We have to do it despite removing the tab from Side Tray's child view tree
+	// by addChild(). Otherwise the tab could be accessed by the pointer in LLSideTray::mTabs.
+	if (!side_tray->removeTab(this))
+	{
+		llwarns << "Failed to remove tab " << getName() << " from side tray" << llendl;
+		return;
+	}
+
+	// If we're undocking while side tray is collapsed we need to explicitly show the panel.
+	if (!getVisible())
+	{
+		setVisible(true);
+	}
+
+	floater_tab->addChild(this);
+	floater_tab->setTitle(mTabTitle);
+	floater_tab->setName(getName());
+
+	// Resize handles get obscured by added panel so move them to front.
+	floater_tab->moveResizeHandlesToFront();
+
+	// Reshape the floater if needed.
+	LLRect floater_rect;
+	if (floater_tab->hasSavedRect())
+	{
+		// We've got saved rect for the floater, hence no need to reshape it.
+		floater_rect = floater_tab->getLocalRect();
 	}
 	else
 	{
-		if (!side_tray->addTab(this))
-		{
-			llwarns << "Failed to add tab " << getName() << " to side tray" << llendl;
-			return;
-		}
+		// Detaching for the first time. Reshape the floater.
+		floater_rect = side_tray->getLocalRect();
 
-		setRect(side_tray->getLocalRect());
-		reshape(getRect().getWidth(), getRect().getHeight());
+		// Reduce detached floater height by small BOTTOM_BAR_PAD not to make it flush with the bottom bar.
+		floater_rect.mBottom += LLBottomTray::getInstance()->getRect().getHeight() + BOTTOM_BAR_PAD;
+		floater_rect.makeValid();
+		floater_tab->reshape(floater_rect.getWidth(), floater_rect.getHeight());
+	}
 
-		// Select the re-docked tab.
-		side_tray->selectTabByName(getName());
+	// Reshape the panel.
+	{
+		LLRect panel_rect = floater_tab->getLocalRect();
+		panel_rect.mTop -= floater_tab->getHeaderHeight();
+		panel_rect.makeValid();
+		setRect(panel_rect);
+		reshape(panel_rect.getWidth(), panel_rect.getHeight());
+	}
 
-		if (side_tray->getCollapsed())
+	// Set FOLLOWS_ALL flag for the tab to follow floater dimensions upon resizing.
+	setFollowsAll();
+
+	// Camera view may need to be changed for appearance panel(STORM-301) on minimize of floater,
+	// so setting callback here. 
+	if (getName() == "sidebar_appearance")
+	{
+		LLSidepanelAppearance* panel_appearance = dynamic_cast<LLSidepanelAppearance*>(getPanel());
+		if(panel_appearance)
 		{
-			side_tray->expandSideBar();
+			floater_tab->setMinimizeCallback(boost::bind(&on_minimize, panel_appearance, _2));
 		}
 	}
+
+	if (!side_tray->getCollapsed())
+	{
+		side_tray->collapseSideBar();
+	}
+
+	if (!was_active)
+	{
+		// When a tab other then current active tab is detached from Side Tray
+		// onOpen() should be called as tab visibility is changed.
+		onOpen(LLSD());
+	}
 }
 
 LLPanel*	LLSideTrayTab::getPanel()
@@ -285,6 +446,11 @@ LLSideTrayTab*  LLSideTrayTab::createInstance	()
 	return tab;
 }
 
+// Now that we know the definition of LLSideTrayTab, we can implement
+// tab_cast.
+template <>
+LLPanel* tab_cast<LLPanel*>(LLSideTrayTab* tab) { return tab; }
+
 //////////////////////////////////////////////////////////////////////////////
 // LLSideTrayButton
 // Side Tray tab button with "tear off" handling.
@@ -332,12 +498,11 @@ public:
 			LLSideTrayTab* tab = side_tray->getTab(getName());
 			if (!tab) return FALSE;
 
-			tab->toggleTabDocked();
+			tab->setDocked(false);
 
-			LLFloater* floater_tab = LLFloaterReg::getInstance("side_bar_tab", LLSD().with("name", tab->getTabTitle()));
+			LLFloater* floater_tab = LLFloaterReg::getInstance("side_bar_tab", tab->getName());
 			if (!floater_tab) return FALSE;
 
-
 			LLRect original_rect = floater_tab->getRect();
 			S32 header_snap_y = floater_tab->getHeaderHeight() / 2;
 			S32 snap_x = screen_x - original_rect.mLeft - original_rect.getWidth() / 2;
@@ -378,8 +543,8 @@ private:
 
 LLSideTray::Params::Params()
 :	collapsed("collapsed",false),
-	tab_btn_image_normal("tab_btn_image",LLUI::getUIImage("sidebar_tab_left.tga")),
-	tab_btn_image_selected("tab_btn_image_selected",LLUI::getUIImage("button_enabled_selected_32x128.tga")),
+	tab_btn_image_normal("tab_btn_image",LLUI::getUIImage("taskpanel/TaskPanel_Tab_Off.png")),
+	tab_btn_image_selected("tab_btn_image_selected",LLUI::getUIImage("taskpanel/TaskPanel_Tab_Selected.png")),
 	default_button_width("tab_btn_width",32),
 	default_button_height("tab_btn_height",32),
 	default_button_margin("tab_btn_margin",0)
@@ -399,6 +564,8 @@ LLSideTray::LLSideTray(const Params& params)
 	// register handler function to process data from the xml. 
 	// panel_name should be specified via "parameter" attribute.
 	commit.add("SideTray.ShowPanel", boost::bind(&LLSideTray::showPanel, this, _2, LLUUID::null));
+	commit.add("SideTray.Toggle", boost::bind(&LLSideTray::onToggleCollapse, this));
+	commit.add("SideTray.Collapse", boost::bind(&LLSideTray::collapseSideBar, this));
 	LLTransientFloaterMgr::getInstance()->addControlView(this);
 	LLView* side_bar_tabs  = gViewerWindow->getRootView()->getChildView("side_bar_tabs");
 	if (side_bar_tabs != NULL)
@@ -441,9 +608,10 @@ BOOL LLSideTray::postBuild()
 	{
 		if ((*it).channel)
 		{
-			getCollapseSignal().connect(boost::bind(&LLScreenChannelBase::resetPositionAndSize, (*it).channel, _2));
+			setVisibleWidthChangeCallback(boost::bind(&LLScreenChannelBase::resetPositionAndSize, (*it).channel));
 		}
 	}
+
 	return true;
 }
 
@@ -451,16 +619,20 @@ void LLSideTray::handleLoginComplete()
 {
 	//reset tab to "home" tab if it was changesd during login process
 	selectTabByName("sidebar_home");
+
+	detachTabs();
 }
 
 LLSideTrayTab* LLSideTray::getTab(const std::string& name)
 {
-	return getChild<LLSideTrayTab>(name,false);
+	return findChild<LLSideTrayTab>(name,false);
 }
 
 bool LLSideTray::isTabAttached(const std::string& name)
 {
 	LLSideTrayTab* tab = getTab(name);
+	if (!tab) return false;
+
 	return std::find(mTabs.begin(), mTabs.end(), tab) != mTabs.end();
 }
 
@@ -481,10 +653,60 @@ void LLSideTray::toggleTabButton(LLSideTrayTab* tab)
 		LLButton* btn = it->second;
 		bool new_state = !btn->getToggleState();
 		btn->setToggleState(new_state); 
-		btn->setImageOverlay( new_state ? tab->mImageSelected : tab->mImage );
+		// Only highlight the tab if side tray is expanded (STORM-157).
+		btn->setImageOverlay( new_state && !getCollapsed() ? tab->mImageSelected : tab->mImage );
 	}
 }
 
+LLPanel* LLSideTray::openChildPanel(LLSideTrayTab* tab, const std::string& panel_name, const LLSD& params)
+{
+	LLView* view = tab->findChildView(panel_name, true);
+	if (!view) return NULL;
+
+	std::string tab_name = tab->getName();
+
+	bool tab_attached = isTabAttached(tab_name);
+
+	if (tab_attached && LLUI::sSettingGroups["config"]->getBOOL("OpenSidePanelsInFloaters"))
+	{
+		tab->setDocked(false);
+		tab_attached = false;
+	}
+
+	// Select tab and expand Side Tray only when a tab is attached.
+	if (tab_attached)
+	{
+		selectTabByName(tab_name);
+		if (mCollapsed)
+			expandSideBar();
+	}
+	else
+	{
+		LLFloater* floater_tab = LLFloaterReg::getInstance("side_bar_tab", tab_name);
+		if (!floater_tab) return NULL;
+
+		floater_tab->openFloater(tab_name);
+	}
+
+	LLSideTrayPanelContainer* container = dynamic_cast<LLSideTrayPanelContainer*>(view->getParent());
+	if (container)
+	{
+		LLSD new_params = params;
+		new_params[LLSideTrayPanelContainer::PARAM_SUB_PANEL_NAME] = panel_name;
+		container->onOpen(new_params);
+
+		return container->getCurrentPanel();
+	}
+
+	LLPanel* panel = dynamic_cast<LLPanel*>(view);
+	if (panel)
+	{
+		panel->onOpen(params);
+	}
+
+	return panel;
+}
+
 bool LLSideTray::selectTabByIndex(size_t index)
 {
 	if(index>=mTabs.size())
@@ -494,9 +716,11 @@ bool LLSideTray::selectTabByIndex(size_t index)
 	return selectTabByName(sidebar_tab->getName());
 }
 
-bool LLSideTray::selectTabByName	(const std::string& name)
+bool LLSideTray::selectTabByName(const std::string& name, bool keep_prev_visible)
 {
+	LLSideTrayTab* tab_to_keep_visible = NULL;
 	LLSideTrayTab* new_tab = getTab(name);
+	if (!new_tab) return false;
 
 	// Bail out if already selected.
 	if (new_tab == mActiveTab)
@@ -505,7 +729,9 @@ bool LLSideTray::selectTabByName	(const std::string& name)
 	//deselect old tab
 	if (mActiveTab)
 	{
-		toggleTabButton(mActiveTab);
+		// Keep previously active tab visible if requested.
+		if (keep_prev_visible) tab_to_keep_visible = mActiveTab;
+	toggleTabButton(mActiveTab);
 	}
 
 	//select new tab
@@ -513,9 +739,9 @@ bool LLSideTray::selectTabByName	(const std::string& name)
 
 	if (mActiveTab)
 	{
-		toggleTabButton(mActiveTab);
-		LLSD key;//empty
-		mActiveTab->onOpen(key);
+	toggleTabButton(mActiveTab);
+	LLSD key;//empty
+	mActiveTab->onOpen(key);
 	}
 
 	//arrange();
@@ -525,9 +751,17 @@ bool LLSideTray::selectTabByName	(const std::string& name)
 	for ( child_it = mTabs.begin(); child_it != mTabs.end(); ++child_it)
 	{
 		LLSideTrayTab* sidebar_tab = *child_it;
+
+		bool vis = sidebar_tab == mActiveTab;
+
+		// Force keeping the tab visible if requested.
+		vis |= sidebar_tab == tab_to_keep_visible;
+
 		// When the last tab gets detached, for a short moment the "Toggle Sidebar" pseudo-tab
 		// is shown. So, to avoid the flicker we make sure it never gets visible.
-		sidebar_tab->setVisible(sidebar_tab == mActiveTab && (*child_it)->getName() != "sidebar_openclose");
+		vis &= (*child_it)->getName() != "sidebar_openclose";
+
+		sidebar_tab->setVisible(vis);
 	}
 	return true;
 }
@@ -614,15 +848,25 @@ bool LLSideTray::removeTab(LLSideTrayTab* tab)
 	// Deselect the tab.
 	if (mActiveTab == tab)
 	{
-		child_vector_iter_t next_tab_it =
-				(tab_it < (mTabs.end() - 1)) ? tab_it + 1 : mTabs.begin();
-		selectTabByName((*next_tab_it)->getName());
+		// Select the next tab (or first one, if we're removing the last tab),
+		// skipping the fake open/close tab (STORM-155).
+		child_vector_iter_t next_tab_it = tab_it;
+		do
+		{
+			next_tab_it = (next_tab_it < (mTabs.end() - 1)) ? next_tab_it + 1 : mTabs.begin();
+		}
+		while ((*next_tab_it)->getName() == "sidebar_openclose");
+
+		selectTabByName((*next_tab_it)->getName(), true); // Don't hide the tab being removed.
 	}
 
 	// Remove the tab.
 	removeChild(tab);
 	mTabs.erase(tab_it);
 
+	// Add the tab to detached tabs list.
+	mDetachedTabs.push_back(tab);
+
 	// Remove the button from the buttons panel so that it isn't drawn anymore.
 	mButtonsPanel->removeChild(btn);
 
@@ -684,6 +928,13 @@ bool LLSideTray::addTab(LLSideTrayTab* tab)
 	// Arrange tabs after inserting a new one.
 	arrange();
 
+	// Remove the tab from the list of detached tabs.
+	child_vector_iter_t tab_it = std::find(mDetachedTabs.begin(), mDetachedTabs.end(), tab);
+	if (tab_it != mDetachedTabs.end())
+	{
+		mDetachedTabs.erase(tab_it);
+	}
+
 	return true;
 }
 
@@ -702,6 +953,7 @@ void	LLSideTray::createButtons	()
 		{
 			mCollapseButton = createButton(name,sidebar_tab->mImage,sidebar_tab->getTabTitle(),
 				boost::bind(&LLSideTray::onToggleCollapse, this));
+			LLHints::registerHintTarget("side_panel_btn", mCollapseButton->getHandle());
 		}
 		else
 		{
@@ -710,6 +962,7 @@ void	LLSideTray::createButtons	()
 			mTabButtons[name] = button;
 		}
 	}
+	LLHints::registerHintTarget("inventory_btn", mTabButtons["sidebar_inventory"]->getHandle());
 }
 
 void		LLSideTray::processTriState ()
@@ -733,8 +986,10 @@ void		LLSideTray::processTriState ()
 
 void		LLSideTray::onTabButtonClick(string name)
 {
-	LLSideTrayTab* side_bar = getTab(name);
-	if(side_bar == mActiveTab)
+	LLSideTrayTab* tab = getTab(name);
+	if (!tab) return;
+
+	if(tab == mActiveTab)
 	{
 		processTriState ();
 		return;
@@ -746,6 +1001,7 @@ void		LLSideTray::onTabButtonClick(string name)
 
 void		LLSideTray::onToggleCollapse()
 {
+	LLFirstUse::notUsingSidePanel(false);
 	if(mCollapsed)
 	{
 		expandSideBar();
@@ -760,21 +1016,9 @@ void LLSideTray::reflectCollapseChange()
 {
 	updateSidetrayVisibility();
 
-	if(mCollapsed)
-	{
-		gFloaterView->setSnapOffsetRight(0);
-		setFocus(FALSE);
-	}
-	else
-	{
-		gFloaterView->setSnapOffsetRight(getRect().getWidth());
-		setFocus(TRUE);
-	}
+	setFocus(!mCollapsed);
 
 	gFloaterView->refresh();
-	
-	LLSD new_value = mCollapsed;
-	mCollapseSignal(this,new_value);
 }
 
 void LLSideTray::arrange()
@@ -824,7 +1068,30 @@ void LLSideTray::arrange()
 	}
 
 	// The tab buttons should be shown only if there is at least one non-detached tab.
-	mButtonsPanel->setVisible(hasTabs());
+	// Also hide them in mouse-look mode.
+	mButtonsPanel->setVisible(hasTabs() && !gAgentCamera.cameraMouselook());
+}
+
+// Detach those tabs that were detached when the viewer exited last time.
+void LLSideTray::detachTabs()
+{
+	// copy mTabs because LLSideTray::toggleTabDocked() modifies it.
+	child_vector_t tabs = mTabs;
+
+	for (child_vector_const_iter_t it = tabs.begin(); it != tabs.end(); ++it)
+	{
+		LLSideTrayTab* tab = *it;
+
+		std::string floater_ctrl_name = LLFloater::getControlName("side_bar_tab", LLSD(tab->getName()));
+		std::string vis_ctrl_name = LLFloaterReg::getVisibilityControlName(floater_ctrl_name);
+		if (!LLFloater::getControlGroup()->controlExists(vis_ctrl_name)) continue;
+
+		bool is_visible = LLFloater::getControlGroup()->getBOOL(vis_ctrl_name);
+		if (!is_visible) continue;
+
+		llassert(isTabAttached(tab->getName()));
+		tab->setDocked(false);
+	}
 }
 
 void LLSideTray::collapseSideBar()
@@ -857,7 +1124,7 @@ void LLSideTray::collapseSideBar()
 	setFocus( FALSE );
 }
 
-void LLSideTray::expandSideBar()
+void LLSideTray::expandSideBar(bool open_active)
 {
 	mCollapsed = false;
 	LLSideTrayTab* openclose_tab = getTab("sidebar_openclose");
@@ -865,8 +1132,11 @@ void LLSideTray::expandSideBar()
 	{
 		mCollapseButton->setImageOverlay( openclose_tab->mImageSelected );
 	}
-	LLSD key;//empty
-	mActiveTab->onOpen(key);
+
+	if (open_active)
+	{
+		mActiveTab->onOpen(LLSD());
+	}
 
 	reflectCollapseChange();
 
@@ -910,6 +1180,38 @@ void LLSideTray::reshape(S32 width, S32 height, BOOL called_from_parent)
 	arrange();
 }
 
+// This is just LLView::findChildView specialized to restrict the search to LLPanels.
+// Optimization for EXT-4068 to avoid searching down to the individual item level
+// when inventories are large.
+LLPanel *findChildPanel(LLPanel *panel, const std::string& name, bool recurse)
+{
+	for (LLView::child_list_const_iter_t child_it = panel->beginChild();
+		 child_it != panel->endChild(); ++child_it)
+	{
+		LLPanel *child_panel = dynamic_cast<LLPanel*>(*child_it);
+		if (!child_panel)
+			continue;
+		if (child_panel->getName() == name)
+			return child_panel;
+	}
+	if (recurse)
+	{
+		for (LLView::child_list_const_iter_t child_it = panel->beginChild();
+			 child_it != panel->endChild(); ++child_it)
+		{
+			LLPanel *child_panel = dynamic_cast<LLPanel*>(*child_it);
+			if (!child_panel)
+				continue;
+			LLPanel *found_panel = findChildPanel(child_panel,name,recurse);
+			if (found_panel)
+			{
+				return found_panel;
+			}
+		}
+	}
+	return NULL;
+}
+
 /**
  * Activate tab with "panel_name" panel
  * if no such tab - return false, otherwise true.
@@ -919,37 +1221,68 @@ void LLSideTray::reshape(S32 width, S32 height, BOOL called_from_parent)
  */
 LLPanel*	LLSideTray::showPanel		(const std::string& panel_name, const LLSD& params)
 {
-	//arrange tabs
+	LLPanel* new_panel = NULL;
+
+	// Look up the tab in the list of detached tabs.
 	child_vector_const_iter_t child_it;
+	for ( child_it = mDetachedTabs.begin(); child_it != mDetachedTabs.end(); ++child_it)
+	{
+		new_panel = openChildPanel(*child_it, panel_name, params);
+		if (new_panel) break;
+	}
+
+	// Look up the tab in the list of attached tabs.
 	for ( child_it = mTabs.begin(); child_it != mTabs.end(); ++child_it)
 	{
-		LLView* view = (*child_it)->findChildView(panel_name,true);
-		if(view)
-		{
-			selectTabByName	((*child_it)->getName());
-			if(mCollapsed)
-				expandSideBar();
+		new_panel = openChildPanel(*child_it, panel_name, params);
+		if (new_panel) break;
+	}
 
-			LLSideTrayPanelContainer* container = dynamic_cast<LLSideTrayPanelContainer*>(view->getParent());
-			if(container)
-			{
-				LLSD new_params = params;
-				new_params[LLSideTrayPanelContainer::PARAM_SUB_PANEL_NAME] = panel_name;
-				container->onOpen(new_params);
+	return new_panel;
+}
 
-				return container->getCurrentPanel();
-			}
+bool LLSideTray::hidePanel(const std::string& panel_name)
+{
+	bool panelHidden = false;
+	
+	LLPanel* panelp = getPanel(panel_name);
 
-			LLPanel* panel = dynamic_cast<LLPanel*>(view);
-			if(panel)
+	if (panelp)
+	{
+		LLView* parentp = panelp->getParent();
+		
+		// Collapse the side bar if the panel or the panel's parent is an attached tab
+		if (isTabAttached(panel_name) || (parentp && isTabAttached(parentp->getName())))
+		{
+			collapseSideBar();
+			panelHidden = true;
+		}
+		else
+		{
+			panelHidden = LLFloaterReg::hideInstance("side_bar_tab", panel_name);
+			
+			if (!panelHidden)
 			{
-				panel->onOpen(params);
+				// Look up the panel in the list of detached tabs.
+				for (child_vector_const_iter_t child_it = mDetachedTabs.begin(); child_it != mDetachedTabs.end(); ++child_it)
+				{
+					LLPanel *detached_panel = dynamic_cast<LLPanel*>(*child_it);
+					
+					if (detached_panel)
+					{
+						// Hide this detached panel if it is a parent of our panel
+						if (findChildPanel(detached_panel, panel_name, true) != NULL)
+						{
+							panelHidden = LLFloaterReg::hideInstance("side_bar_tab", detached_panel->getName());
+							break;
+						}
+					}
+				}
 			}
-
-			return panel;
 		}
 	}
-	return NULL;
+	
+	return panelHidden;
 }
 
 void LLSideTray::togglePanel(LLPanel* &sub_panel, const std::string& panel_name, const LLSD& params)
@@ -957,7 +1290,9 @@ void LLSideTray::togglePanel(LLPanel* &sub_panel, const std::string& panel_name,
 	if(!sub_panel)
 		return;
 
-	if (sub_panel->isInVisibleChain())
+	// If a panel is visible and attached to Side Tray (has LLSideTray among its ancestors)
+	// it should be toggled off by collapsing Side Tray.
+	if (sub_panel->isInVisibleChain() && sub_panel->hasAncestor(this))
 	{
 		LLSideTray::getInstance()->collapseSideBar();
 	}
@@ -967,40 +1302,19 @@ void LLSideTray::togglePanel(LLPanel* &sub_panel, const std::string& panel_name,
 	}
 }
 
-// This is just LLView::findChildView specialized to restrict the search to LLPanels.
-// Optimization for EXT-4068 to avoid searching down to the individual item level
-// when inventories are large.
-LLPanel *findChildPanel(LLPanel *panel, const std::string& name, bool recurse)
+LLPanel* LLSideTray::getPanel(const std::string& panel_name)
 {
-	for (LLView::child_list_const_iter_t child_it = panel->beginChild();
-		 child_it != panel->endChild(); ++child_it)
+	// Look up the panel in the list of detached tabs.
+	for ( child_vector_const_iter_t child_it = mDetachedTabs.begin(); child_it != mDetachedTabs.end(); ++child_it)
 	{
-		LLPanel *child_panel = dynamic_cast<LLPanel*>(*child_it);
-		if (!child_panel)
-			continue;
-		if (child_panel->getName() == name)
-			return child_panel;
-	}
-	if (recurse)
-	{
-		for (LLView::child_list_const_iter_t child_it = panel->beginChild();
-			 child_it != panel->endChild(); ++child_it)
+		LLPanel *panel = findChildPanel(*child_it,panel_name,true);
+		if(panel)
 		{
-			LLPanel *child_panel = dynamic_cast<LLPanel*>(*child_it);
-			if (!child_panel)
-				continue;
-			LLPanel *found_panel = findChildPanel(child_panel,name,recurse);
-			if (found_panel)
-			{
-				return found_panel;
-			}
+			return panel;
 		}
 	}
-	return NULL;
-}
 
-LLPanel* LLSideTray::getPanel(const std::string& panel_name)
-{
+	// Look up the panel in the list of attached tabs.
 	for ( child_vector_const_iter_t child_it = mTabs.begin(); child_it != mTabs.end(); ++child_it)
 	{
 		LLPanel *panel = findChildPanel(*child_it,panel_name,true);
@@ -1028,12 +1342,61 @@ bool		LLSideTray::isPanelActive(const std::string& panel_name)
 	return (panel->getName() == panel_name);
 }
 
+void LLSideTray::setTabDocked(const std::string& tab_name, bool dock, bool toggle_floater /* = true*/)
+{
+	// Lookup tab by name.
+	LLSideTrayTab* tab = getTab(tab_name);
+	if (!tab)
+	{	// not a docked tab, look through detached tabs
+		for(child_vector_iter_t tab_it = mDetachedTabs.begin(), tab_end_it = mDetachedTabs.end();
+			tab_it != tab_end_it;
+			++tab_it)
+		{
+			if ((*tab_it)->getName() == tab_name)
+			{
+				tab = *tab_it;
+				break;
+			}
+		}
+
+	}
+
+	llassert(tab != NULL);
+
+	// Toggle its dock state.
+	if (tab && tab->isDocked() != dock)
+	{
+		tab->toggleTabDocked(toggle_floater);
+	}
+}
+
+
 void	LLSideTray::updateSidetrayVisibility()
 {
 	// set visibility of parent container based on collapsed state
-	if (getParent())
+	LLView* parent = getParent();
+	if (parent)
 	{
-		getParent()->setVisible(!mCollapsed && !gAgentCamera.cameraMouselook());
+		bool old_visibility = parent->getVisible();
+		bool new_visibility = !mCollapsed && !gAgentCamera.cameraMouselook();
+
+		if (old_visibility != new_visibility)
+		{
+			parent->setVisible(new_visibility);
+
+			// Signal change of visible width.
+			llinfos << "Visible: " << new_visibility << llendl;
+			mVisibleWidthChangeSignal(this, new_visibility);
+		}
 	}
 }
 
+S32 LLSideTray::getVisibleWidth()
+{
+	return (isInVisibleChain() && !mCollapsed) ? getRect().getWidth() : 0;
+}
+
+void LLSideTray::setVisibleWidthChangeCallback(const commit_signal_t::slot_type& cb)
+{
+	mVisibleWidthChangeSignal.connect(cb);
+}