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diff --git a/indra/llui/llflatlistview.h b/indra/llui/llflatlistview.h
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--- a/indra/llui/llflatlistview.h
+++ b/indra/llui/llflatlistview.h
@@ -1,535 +1,535 @@
-/**
- * @file llflatlistview.h
- * @brief LLFlatListView base class and extension to support messages for several cases of an empty list.
- *
- * $LicenseInfo:firstyear=2009&license=viewerlgpl$
- * 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
- * $/LicenseInfo$
- */
-
-#ifndef LL_LLFLATLISTVIEW_H
-#define LL_LLFLATLISTVIEW_H
-
-#include "llpanel.h"
-#include "llscrollcontainer.h"
-#include "lltextbox.h"
-
-
-/**
- * LLFlatListView represents a flat list ui control that operates on items in a form of LLPanel's.
- * LLSD can be associated with each added item, it can keep data from an item in digested form.
- * Associated LLSD's can be of any type (singular, a map etc.).
- * Items (LLPanel's subclasses) can be of different height.
- * The list is LLPanel created in itself and grows in height while new items are added.
- *
- * The control can manage selection of its items when the flag "allow_select" is set. Also ability to select
- * multiple items (by using CTRL) is enabled through setting the flag "multi_select" - if selection is not allowed that flag
- * is ignored. The option "keep_one_selected" forces at least one item to be selected at any time (only for mouse events on items)
- * since any item of the list was selected.
- *
- * Examples of using this control are presented in Picks panel (My Profile and Profile View), where this control is used to
- * manage the list of pick items.
- *
- * ASSUMPTIONS AND STUFF
- * - NULL pointers and undefined LLSD's are not accepted by any method of this class unless specified otherwise
- * - Order of returned selected items are not guaranteed
- * - The control assumes that all items being added are unique.
- */
-class LLFlatListView : public LLScrollContainer, public LLEditMenuHandler
-{
- LOG_CLASS(LLFlatListView);
-public:
-
- /**
- * Abstract comparator for comparing flat list items in a form of LLPanel
- */
- class ItemComparator
- {
- public:
- ItemComparator() {};
- virtual ~ItemComparator() {};
-
- /** Returns true if item1 < item2, false otherwise */
- virtual bool compare(const LLPanel* item1, const LLPanel* item2) const = 0;
- };
-
- /**
- * Represents reverse comparator which acts as a decorator for a comparator that need to be reversed
- */
- class ItemReverseComparator : public ItemComparator
- {
- public:
- ItemReverseComparator(const ItemComparator& comparator) : mComparator(comparator) {};
- virtual ~ItemReverseComparator() {};
-
- virtual bool compare(const LLPanel* item1, const LLPanel* item2) const
- {
- return mComparator.compare(item2, item1);
- }
-
- private:
- const ItemComparator& mComparator;
- };
-
-
- struct Params : public LLInitParam::Block<Params, LLScrollContainer::Params>
- {
- /** turning on/off selection support */
- Optional<bool> allow_select;
-
- /** turning on/off multiple selection (works while clicking and holding CTRL)*/
- Optional<bool> multi_select;
-
- /** don't allow to deselect all selected items (for mouse events on items only) */
- Optional<bool> keep_one_selected;
-
- /** try to keep selection visible after reshape */
- Optional<bool> keep_selection_visible_on_reshape;
-
- /** padding between items */
- Optional<U32> item_pad;
-
- /** textbox with info message when list is empty*/
- Optional<LLTextBox::Params> no_items_text;
-
- Params();
- };
-
- // disable traversal when finding widget to hand focus off to
- /*virtual*/ bool canFocusChildren() const { return false; }
-
- /**
- * Connects callback to signal called when Return key is pressed.
- */
- boost::signals2::connection setReturnCallback( const commit_signal_t::slot_type& cb ) { return mOnReturnSignal.connect(cb); }
-
- /** Overridden LLPanel's reshape, height is ignored, the list sets its height to accommodate all items */
- virtual void reshape(S32 width, S32 height, bool called_from_parent = true);
-
- /** Returns full rect of child panel */
- const LLRect& getItemsRect() const;
-
- LLRect getRequiredRect() { return getItemsRect(); }
-
- /** Returns distance between items */
- const S32 getItemsPad() { return mItemPad; }
-
- /**
- * Adds and item and LLSD value associated with it to the list at specified position
- * @return true if the item was added, false otherwise
- */
- virtual bool addItem(LLPanel * item, const LLSD& value = LLUUID::null, EAddPosition pos = ADD_BOTTOM, bool rearrange = true);
-
- /**
- * Insert item_to_add along with associated value to the list right after the after_item.
- * @return true if the item was successfully added, false otherwise
- */
- virtual bool insertItemAfter(LLPanel* after_item, LLPanel* item_to_add, const LLSD& value = LLUUID::null);
-
- /**
- * Remove specified item
- * @return true if the item was removed, false otherwise
- */
- virtual bool removeItem(LLPanel* item, bool rearrange = true);
-
- /**
- * Remove an item specified by value
- * @return true if the item was removed, false otherwise
- */
- virtual bool removeItemByValue(const LLSD& value, bool rearrange = true);
-
- /**
- * Remove an item specified by uuid
- * @return true if the item was removed, false otherwise
- */
- virtual bool removeItemByUUID(const LLUUID& uuid, bool rearrange = true);
-
- /**
- * Get an item by value
- * @return the item as LLPanel if associated with value, NULL otherwise
- */
- virtual LLPanel* getItemByValue(const LLSD& value) const;
-
- template<class T>
- T* getTypedItemByValue(const LLSD& value) const
- {
- return dynamic_cast<T*>(getItemByValue(value));
- }
-
- /**
- * Select or deselect specified item based on select
- * @return true if succeed, false otherwise
- */
- virtual bool selectItem(LLPanel* item, bool select = true);
-
- /**
- * Select or deselect an item by associated value based on select
- * @return true if succeed, false otherwise
- */
- virtual bool selectItemByValue(const LLSD& value, bool select = true);
-
- /**
- * Select or deselect an item by associated uuid based on select
- * @return true if succeed, false otherwise
- */
- virtual bool selectItemByUUID(const LLUUID& uuid, bool select = true);
-
- /**
- * Get all panels stored in the list.
- */
- virtual void getItems(std::vector<LLPanel*>& items) const;
-
- /**
- * Get all items values.
- */
- virtual void getValues(std::vector<LLSD>& values) const;
-
- /**
- * Get LLSD associated with the first selected item
- */
- virtual LLSD getSelectedValue() const;
-
- /**
- * Get LLSD's associated with selected items.
- * @param selected_values std::vector being populated with LLSD associated with selected items
- */
- virtual void getSelectedValues(std::vector<LLSD>& selected_values) const;
-
-
- /**
- * Get LLUUID associated with selected item
- * @return LLUUID if such was associated with selected item
- */
- virtual LLUUID getSelectedUUID() const;
-
- /**
- * Get LLUUIDs associated with selected items
- * @param selected_uuids An std::vector being populated with LLUUIDs associated with selected items
- */
- virtual void getSelectedUUIDs(uuid_vec_t& selected_uuids) const;
-
- /** Get the top selected item */
- virtual LLPanel* getSelectedItem() const;
-
- /**
- * Get selected items
- * @param selected_items An std::vector being populated with pointers to selected items
- */
- virtual void getSelectedItems(std::vector<LLPanel*>& selected_items) const;
-
-
- /**
- * Resets selection of items.
- *
- * It calls onCommit callback if setCommitOnSelectionChange(bool b) was called with "true"
- * argument for current Flat List.
- * @param no_commit_on_deselection - if true onCommit callback will not be called
- */
- virtual void resetSelection(bool no_commit_on_deselection = false);
-
- /**
- * Sets comment text which will be shown in the list is it is empty.
- *
- * Textbox to hold passed text is created while this method is called at the first time.
- *
- * @param comment_text - string to be shown as a comment.
- */
- void setNoItemsCommentText( const std::string& comment_text);
-
- /** Turn on/off multiple selection support */
- void setAllowMultipleSelection(bool allow) { mMultipleSelection = allow; }
-
- /** Turn on/off selection support */
- void setAllowSelection(bool can_select) { mAllowSelection = can_select; }
-
- /** Sets flag whether onCommit should be fired if selection was changed */
- // FIXME: this should really be a separate signal, since "Commit" implies explicit user action, and selection changes can happen more indirectly.
- void setCommitOnSelectionChange(bool b) { mCommitOnSelectionChange = b; }
-
- /** Get number of selected items in the list */
- U32 numSelected() const {return mSelectedItemPairs.size(); }
-
- /** Get number of (visible) items in the list */
- U32 size(const bool only_visible_items = true) const;
-
- /** Removes all items from the list */
- virtual void clear();
-
- /**
- * Removes all items that can be detached from the list but doesn't destroy
- * them, caller responsible to manage items after they are detached.
- * Detachable item should accept "detach" action via notify() method,
- * where it disconnect all callbacks, does other valuable routines and
- * return 1.
- */
- void detachItems(std::vector<LLPanel*>& detached_items);
-
- /**
- * Set comparator to use for future sorts.
- *
- * This class does NOT manage lifetime of the comparator
- * but assumes that the comparator is always alive.
- */
- void setComparator(const ItemComparator* comp) { mItemComparator = comp; }
- void sort();
-
- bool updateValue(const LLSD& old_value, const LLSD& new_value);
-
- void scrollToShowFirstSelectedItem();
-
- void selectFirstItem ();
- void selectLastItem ();
-
- virtual S32 notify(const LLSD& info) ;
-
- virtual ~LLFlatListView();
-
-protected:
-
- /** Pairs LLpanel representing a single item LLPanel and LLSD associated with it */
- typedef std::pair<LLPanel*, LLSD> item_pair_t;
-
- typedef std::list<item_pair_t*> pairs_list_t;
- typedef pairs_list_t::iterator pairs_iterator_t;
- typedef pairs_list_t::const_iterator pairs_const_iterator_t;
-
- /** An adapter for a ItemComparator */
- struct ComparatorAdaptor
- {
- ComparatorAdaptor(const ItemComparator& comparator) : mComparator(comparator) {};
-
- bool operator()(const item_pair_t* item_pair1, const item_pair_t* item_pair2)
- {
- return mComparator.compare(item_pair1->first, item_pair2->first);
- }
-
- const ItemComparator& mComparator;
- };
-
-
- friend class LLUICtrlFactory;
- LLFlatListView(const LLFlatListView::Params& p);
-
- /** Manage selection on mouse events */
- void onItemMouseClick(item_pair_t* item_pair, MASK mask);
-
- void onItemRightMouseClick(item_pair_t* item_pair, MASK mask);
-
- /**
- * Updates position of items.
- * It does not take into account invisible items.
- */
- virtual void rearrangeItems();
-
- virtual item_pair_t* getItemPair(LLPanel* item) const;
-
- virtual item_pair_t* getItemPair(const LLSD& value) const;
-
- virtual bool selectItemPair(item_pair_t* item_pair, bool select);
-
- virtual bool selectNextItemPair(bool is_up_direction, bool reset_selection);
-
- virtual bool canSelectAll() const;
- virtual void selectAll();
-
- virtual bool isSelected(item_pair_t* item_pair) const;
-
- virtual bool removeItemPair(item_pair_t* item_pair, bool rearrange);
-
- bool addItemPairs(pairs_list_t panel_list, bool rearrange = true);
-
- /**
- * Notify parent about changed size of internal controls with "size_changes" action
- *
- * Size includes Items Rect width and either Items Rect height or comment text height.
- * Comment text height is included if comment text is set and visible.
- * List border size is also included into notified size.
- */
- void notifyParentItemsRectChanged();
-
- virtual bool handleKeyHere(KEY key, MASK mask);
-
- virtual bool postBuild();
-
- virtual void onFocusReceived();
-
- virtual void onFocusLost();
-
- virtual void draw();
-
- LLRect getLastSelectedItemRect();
-
- void ensureSelectedVisible();
-
- const pairs_list_t& getItemPairs() { return mItemPairs; }
-
-private:
-
- void setItemsNoScrollWidth(S32 new_width) {mItemsNoScrollWidth = new_width - 2 * mBorderThickness;}
-
- void setNoItemsCommentVisible(bool visible) const;
-
-protected:
-
- /** Comparator to use when sorting the list. */
- const ItemComparator* mItemComparator;
-
-
-private:
-
- LLPanel* mItemsPanel;
-
- S32 mItemsNoScrollWidth;
-
- S32 mBorderThickness;
-
- /** Items padding */
- S32 mItemPad;
-
- /** Selection support flag */
- bool mAllowSelection;
-
- /** Multiselection support flag, ignored if selection is not supported */
- bool mMultipleSelection;
-
- /**
- * Flag specified whether onCommit be called if selection is changed in the list.
- *
- * Can be ignored in the resetSelection() method.
- * @see resetSelection()
- */
- bool mCommitOnSelectionChange;
-
- bool mKeepOneItemSelected;
-
- bool mIsConsecutiveSelection;
-
- bool mKeepSelectionVisibleOnReshape;
-
- /** All pairs of the list */
- pairs_list_t mItemPairs;
-
- /** Selected pairs for faster access */
- pairs_list_t mSelectedItemPairs;
-
- /**
- * Rectangle contained previous size of items parent notified last time.
- * Is used to reduce amount of parentNotify() calls if size was not changed.
- */
- LLRect mPrevNotifyParentRect;
-
- LLTextBox* mNoItemsCommentTextbox;
-
- LLViewBorder* mSelectedItemsBorder;
-
- commit_signal_t mOnReturnSignal;
-};
-
-/**
- * Extends LLFlatListView functionality to show different messages when there are no items in the
- * list depend on whether they are filtered or not.
- *
- * Class provides one message per case of empty list.
- * It also provides protected updateNoItemsMessage() method to be called each time when derived list
- * is changed to update base mNoItemsCommentTextbox value.
- *
- * It is implemented to avoid duplication of this functionality in concrete implementations of the
- * lists. It is intended to be used as a base class for lists which should support two different
- * messages for empty state. Can be improved to support more than two messages via state-to-message map.
- */
-class LLFlatListViewEx : public LLFlatListView
-{
-public:
- LOG_CLASS(LLFlatListViewEx);
-
- struct Params : public LLInitParam::Block<Params, LLFlatListView::Params>
- {
- /**
- * Contains a message for empty list when it does not contain any items at all.
- */
- Optional<std::string> no_items_msg;
-
- /**
- * Contains a message for empty list when its items are removed by filtering.
- */
- Optional<std::string> no_filtered_items_msg;
- Params();
- };
-
- // *WORKAROUND: two methods to overload appropriate Params due to localization issue:
- // no_items_msg & no_filtered_items_msg attributes are not defined as translatable in VLT. See EXT-5931
- void setNoItemsMsg(const std::string& msg) { mNoItemsMsg = msg; }
- void setNoFilteredItemsMsg(const std::string& msg) { mNoFilteredItemsMsg = msg; }
-
- bool getForceShowingUnmatchedItems();
-
- void setForceShowingUnmatchedItems(bool show);
-
- /**
- * Sets up new filter string and filters the list.
- */
- void setFilterSubString(const std::string& filter_str, bool notify_parent);
- std::string getFilterSubString() { return mFilterSubString; }
-
- /**
- * Filters the list, rearranges and notifies parent about shape changes.
- * Derived classes may want to overload rearrangeItems() to exclude repeated separators after filtration.
- */
- void filterItems(bool re_sort, bool notify_parent);
-
- /**
- * Returns true if last call of filterItems() found at least one matching item
- */
- bool hasMatchedItems();
-
-protected:
- LLFlatListViewEx(const Params& p);
-
- /**
- * Applies a message for empty list depend on passed argument.
- *
- * @param filter_string - if is not empty, message for filtered items will be set, otherwise for
- * completely empty list. Value of filter string will be passed as search_term in SLURL.
- */
- void updateNoItemsMessage(const std::string& filter_string);
-
- /**
- * Applies visibility acording to action and LLFlatListView settings.
- *
- * @param item - item we are changing
- * @param item - action - parameters to determin visibility from
- */
- bool updateItemVisibility(LLPanel* item, const LLSD &action);
-
-private:
- std::string mNoFilteredItemsMsg;
- std::string mNoItemsMsg;
- std::string mFilterSubString;
- /**
- * Show list items that don't match current filter
- */
- bool mForceShowingUnmatchedItems;
- /**
- * True if last call of filterItems() found at least one matching item
- */
- bool mHasMatchedItems;
-};
-
-#endif
+/**
+ * @file llflatlistview.h
+ * @brief LLFlatListView base class and extension to support messages for several cases of an empty list.
+ *
+ * $LicenseInfo:firstyear=2009&license=viewerlgpl$
+ * 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
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLFLATLISTVIEW_H
+#define LL_LLFLATLISTVIEW_H
+
+#include "llpanel.h"
+#include "llscrollcontainer.h"
+#include "lltextbox.h"
+
+
+/**
+ * LLFlatListView represents a flat list ui control that operates on items in a form of LLPanel's.
+ * LLSD can be associated with each added item, it can keep data from an item in digested form.
+ * Associated LLSD's can be of any type (singular, a map etc.).
+ * Items (LLPanel's subclasses) can be of different height.
+ * The list is LLPanel created in itself and grows in height while new items are added.
+ *
+ * The control can manage selection of its items when the flag "allow_select" is set. Also ability to select
+ * multiple items (by using CTRL) is enabled through setting the flag "multi_select" - if selection is not allowed that flag
+ * is ignored. The option "keep_one_selected" forces at least one item to be selected at any time (only for mouse events on items)
+ * since any item of the list was selected.
+ *
+ * Examples of using this control are presented in Picks panel (My Profile and Profile View), where this control is used to
+ * manage the list of pick items.
+ *
+ * ASSUMPTIONS AND STUFF
+ * - NULL pointers and undefined LLSD's are not accepted by any method of this class unless specified otherwise
+ * - Order of returned selected items are not guaranteed
+ * - The control assumes that all items being added are unique.
+ */
+class LLFlatListView : public LLScrollContainer, public LLEditMenuHandler
+{
+ LOG_CLASS(LLFlatListView);
+public:
+
+ /**
+ * Abstract comparator for comparing flat list items in a form of LLPanel
+ */
+ class ItemComparator
+ {
+ public:
+ ItemComparator() {};
+ virtual ~ItemComparator() {};
+
+ /** Returns true if item1 < item2, false otherwise */
+ virtual bool compare(const LLPanel* item1, const LLPanel* item2) const = 0;
+ };
+
+ /**
+ * Represents reverse comparator which acts as a decorator for a comparator that need to be reversed
+ */
+ class ItemReverseComparator : public ItemComparator
+ {
+ public:
+ ItemReverseComparator(const ItemComparator& comparator) : mComparator(comparator) {};
+ virtual ~ItemReverseComparator() {};
+
+ virtual bool compare(const LLPanel* item1, const LLPanel* item2) const
+ {
+ return mComparator.compare(item2, item1);
+ }
+
+ private:
+ const ItemComparator& mComparator;
+ };
+
+
+ struct Params : public LLInitParam::Block<Params, LLScrollContainer::Params>
+ {
+ /** turning on/off selection support */
+ Optional<bool> allow_select;
+
+ /** turning on/off multiple selection (works while clicking and holding CTRL)*/
+ Optional<bool> multi_select;
+
+ /** don't allow to deselect all selected items (for mouse events on items only) */
+ Optional<bool> keep_one_selected;
+
+ /** try to keep selection visible after reshape */
+ Optional<bool> keep_selection_visible_on_reshape;
+
+ /** padding between items */
+ Optional<U32> item_pad;
+
+ /** textbox with info message when list is empty*/
+ Optional<LLTextBox::Params> no_items_text;
+
+ Params();
+ };
+
+ // disable traversal when finding widget to hand focus off to
+ /*virtual*/ bool canFocusChildren() const { return false; }
+
+ /**
+ * Connects callback to signal called when Return key is pressed.
+ */
+ boost::signals2::connection setReturnCallback( const commit_signal_t::slot_type& cb ) { return mOnReturnSignal.connect(cb); }
+
+ /** Overridden LLPanel's reshape, height is ignored, the list sets its height to accommodate all items */
+ virtual void reshape(S32 width, S32 height, bool called_from_parent = true);
+
+ /** Returns full rect of child panel */
+ const LLRect& getItemsRect() const;
+
+ LLRect getRequiredRect() { return getItemsRect(); }
+
+ /** Returns distance between items */
+ const S32 getItemsPad() { return mItemPad; }
+
+ /**
+ * Adds and item and LLSD value associated with it to the list at specified position
+ * @return true if the item was added, false otherwise
+ */
+ virtual bool addItem(LLPanel * item, const LLSD& value = LLUUID::null, EAddPosition pos = ADD_BOTTOM, bool rearrange = true);
+
+ /**
+ * Insert item_to_add along with associated value to the list right after the after_item.
+ * @return true if the item was successfully added, false otherwise
+ */
+ virtual bool insertItemAfter(LLPanel* after_item, LLPanel* item_to_add, const LLSD& value = LLUUID::null);
+
+ /**
+ * Remove specified item
+ * @return true if the item was removed, false otherwise
+ */
+ virtual bool removeItem(LLPanel* item, bool rearrange = true);
+
+ /**
+ * Remove an item specified by value
+ * @return true if the item was removed, false otherwise
+ */
+ virtual bool removeItemByValue(const LLSD& value, bool rearrange = true);
+
+ /**
+ * Remove an item specified by uuid
+ * @return true if the item was removed, false otherwise
+ */
+ virtual bool removeItemByUUID(const LLUUID& uuid, bool rearrange = true);
+
+ /**
+ * Get an item by value
+ * @return the item as LLPanel if associated with value, NULL otherwise
+ */
+ virtual LLPanel* getItemByValue(const LLSD& value) const;
+
+ template<class T>
+ T* getTypedItemByValue(const LLSD& value) const
+ {
+ return dynamic_cast<T*>(getItemByValue(value));
+ }
+
+ /**
+ * Select or deselect specified item based on select
+ * @return true if succeed, false otherwise
+ */
+ virtual bool selectItem(LLPanel* item, bool select = true);
+
+ /**
+ * Select or deselect an item by associated value based on select
+ * @return true if succeed, false otherwise
+ */
+ virtual bool selectItemByValue(const LLSD& value, bool select = true);
+
+ /**
+ * Select or deselect an item by associated uuid based on select
+ * @return true if succeed, false otherwise
+ */
+ virtual bool selectItemByUUID(const LLUUID& uuid, bool select = true);
+
+ /**
+ * Get all panels stored in the list.
+ */
+ virtual void getItems(std::vector<LLPanel*>& items) const;
+
+ /**
+ * Get all items values.
+ */
+ virtual void getValues(std::vector<LLSD>& values) const;
+
+ /**
+ * Get LLSD associated with the first selected item
+ */
+ virtual LLSD getSelectedValue() const;
+
+ /**
+ * Get LLSD's associated with selected items.
+ * @param selected_values std::vector being populated with LLSD associated with selected items
+ */
+ virtual void getSelectedValues(std::vector<LLSD>& selected_values) const;
+
+
+ /**
+ * Get LLUUID associated with selected item
+ * @return LLUUID if such was associated with selected item
+ */
+ virtual LLUUID getSelectedUUID() const;
+
+ /**
+ * Get LLUUIDs associated with selected items
+ * @param selected_uuids An std::vector being populated with LLUUIDs associated with selected items
+ */
+ virtual void getSelectedUUIDs(uuid_vec_t& selected_uuids) const;
+
+ /** Get the top selected item */
+ virtual LLPanel* getSelectedItem() const;
+
+ /**
+ * Get selected items
+ * @param selected_items An std::vector being populated with pointers to selected items
+ */
+ virtual void getSelectedItems(std::vector<LLPanel*>& selected_items) const;
+
+
+ /**
+ * Resets selection of items.
+ *
+ * It calls onCommit callback if setCommitOnSelectionChange(bool b) was called with "true"
+ * argument for current Flat List.
+ * @param no_commit_on_deselection - if true onCommit callback will not be called
+ */
+ virtual void resetSelection(bool no_commit_on_deselection = false);
+
+ /**
+ * Sets comment text which will be shown in the list is it is empty.
+ *
+ * Textbox to hold passed text is created while this method is called at the first time.
+ *
+ * @param comment_text - string to be shown as a comment.
+ */
+ void setNoItemsCommentText( const std::string& comment_text);
+
+ /** Turn on/off multiple selection support */
+ void setAllowMultipleSelection(bool allow) { mMultipleSelection = allow; }
+
+ /** Turn on/off selection support */
+ void setAllowSelection(bool can_select) { mAllowSelection = can_select; }
+
+ /** Sets flag whether onCommit should be fired if selection was changed */
+ // FIXME: this should really be a separate signal, since "Commit" implies explicit user action, and selection changes can happen more indirectly.
+ void setCommitOnSelectionChange(bool b) { mCommitOnSelectionChange = b; }
+
+ /** Get number of selected items in the list */
+ U32 numSelected() const {return mSelectedItemPairs.size(); }
+
+ /** Get number of (visible) items in the list */
+ U32 size(const bool only_visible_items = true) const;
+
+ /** Removes all items from the list */
+ virtual void clear();
+
+ /**
+ * Removes all items that can be detached from the list but doesn't destroy
+ * them, caller responsible to manage items after they are detached.
+ * Detachable item should accept "detach" action via notify() method,
+ * where it disconnect all callbacks, does other valuable routines and
+ * return 1.
+ */
+ void detachItems(std::vector<LLPanel*>& detached_items);
+
+ /**
+ * Set comparator to use for future sorts.
+ *
+ * This class does NOT manage lifetime of the comparator
+ * but assumes that the comparator is always alive.
+ */
+ void setComparator(const ItemComparator* comp) { mItemComparator = comp; }
+ void sort();
+
+ bool updateValue(const LLSD& old_value, const LLSD& new_value);
+
+ void scrollToShowFirstSelectedItem();
+
+ void selectFirstItem ();
+ void selectLastItem ();
+
+ virtual S32 notify(const LLSD& info) ;
+
+ virtual ~LLFlatListView();
+
+protected:
+
+ /** Pairs LLpanel representing a single item LLPanel and LLSD associated with it */
+ typedef std::pair<LLPanel*, LLSD> item_pair_t;
+
+ typedef std::list<item_pair_t*> pairs_list_t;
+ typedef pairs_list_t::iterator pairs_iterator_t;
+ typedef pairs_list_t::const_iterator pairs_const_iterator_t;
+
+ /** An adapter for a ItemComparator */
+ struct ComparatorAdaptor
+ {
+ ComparatorAdaptor(const ItemComparator& comparator) : mComparator(comparator) {};
+
+ bool operator()(const item_pair_t* item_pair1, const item_pair_t* item_pair2)
+ {
+ return mComparator.compare(item_pair1->first, item_pair2->first);
+ }
+
+ const ItemComparator& mComparator;
+ };
+
+
+ friend class LLUICtrlFactory;
+ LLFlatListView(const LLFlatListView::Params& p);
+
+ /** Manage selection on mouse events */
+ void onItemMouseClick(item_pair_t* item_pair, MASK mask);
+
+ void onItemRightMouseClick(item_pair_t* item_pair, MASK mask);
+
+ /**
+ * Updates position of items.
+ * It does not take into account invisible items.
+ */
+ virtual void rearrangeItems();
+
+ virtual item_pair_t* getItemPair(LLPanel* item) const;
+
+ virtual item_pair_t* getItemPair(const LLSD& value) const;
+
+ virtual bool selectItemPair(item_pair_t* item_pair, bool select);
+
+ virtual bool selectNextItemPair(bool is_up_direction, bool reset_selection);
+
+ virtual bool canSelectAll() const;
+ virtual void selectAll();
+
+ virtual bool isSelected(item_pair_t* item_pair) const;
+
+ virtual bool removeItemPair(item_pair_t* item_pair, bool rearrange);
+
+ bool addItemPairs(pairs_list_t panel_list, bool rearrange = true);
+
+ /**
+ * Notify parent about changed size of internal controls with "size_changes" action
+ *
+ * Size includes Items Rect width and either Items Rect height or comment text height.
+ * Comment text height is included if comment text is set and visible.
+ * List border size is also included into notified size.
+ */
+ void notifyParentItemsRectChanged();
+
+ virtual bool handleKeyHere(KEY key, MASK mask);
+
+ virtual bool postBuild();
+
+ virtual void onFocusReceived();
+
+ virtual void onFocusLost();
+
+ virtual void draw();
+
+ LLRect getLastSelectedItemRect();
+
+ void ensureSelectedVisible();
+
+ const pairs_list_t& getItemPairs() { return mItemPairs; }
+
+private:
+
+ void setItemsNoScrollWidth(S32 new_width) {mItemsNoScrollWidth = new_width - 2 * mBorderThickness;}
+
+ void setNoItemsCommentVisible(bool visible) const;
+
+protected:
+
+ /** Comparator to use when sorting the list. */
+ const ItemComparator* mItemComparator;
+
+
+private:
+
+ LLPanel* mItemsPanel;
+
+ S32 mItemsNoScrollWidth;
+
+ S32 mBorderThickness;
+
+ /** Items padding */
+ S32 mItemPad;
+
+ /** Selection support flag */
+ bool mAllowSelection;
+
+ /** Multiselection support flag, ignored if selection is not supported */
+ bool mMultipleSelection;
+
+ /**
+ * Flag specified whether onCommit be called if selection is changed in the list.
+ *
+ * Can be ignored in the resetSelection() method.
+ * @see resetSelection()
+ */
+ bool mCommitOnSelectionChange;
+
+ bool mKeepOneItemSelected;
+
+ bool mIsConsecutiveSelection;
+
+ bool mKeepSelectionVisibleOnReshape;
+
+ /** All pairs of the list */
+ pairs_list_t mItemPairs;
+
+ /** Selected pairs for faster access */
+ pairs_list_t mSelectedItemPairs;
+
+ /**
+ * Rectangle contained previous size of items parent notified last time.
+ * Is used to reduce amount of parentNotify() calls if size was not changed.
+ */
+ LLRect mPrevNotifyParentRect;
+
+ LLTextBox* mNoItemsCommentTextbox;
+
+ LLViewBorder* mSelectedItemsBorder;
+
+ commit_signal_t mOnReturnSignal;
+};
+
+/**
+ * Extends LLFlatListView functionality to show different messages when there are no items in the
+ * list depend on whether they are filtered or not.
+ *
+ * Class provides one message per case of empty list.
+ * It also provides protected updateNoItemsMessage() method to be called each time when derived list
+ * is changed to update base mNoItemsCommentTextbox value.
+ *
+ * It is implemented to avoid duplication of this functionality in concrete implementations of the
+ * lists. It is intended to be used as a base class for lists which should support two different
+ * messages for empty state. Can be improved to support more than two messages via state-to-message map.
+ */
+class LLFlatListViewEx : public LLFlatListView
+{
+public:
+ LOG_CLASS(LLFlatListViewEx);
+
+ struct Params : public LLInitParam::Block<Params, LLFlatListView::Params>
+ {
+ /**
+ * Contains a message for empty list when it does not contain any items at all.
+ */
+ Optional<std::string> no_items_msg;
+
+ /**
+ * Contains a message for empty list when its items are removed by filtering.
+ */
+ Optional<std::string> no_filtered_items_msg;
+ Params();
+ };
+
+ // *WORKAROUND: two methods to overload appropriate Params due to localization issue:
+ // no_items_msg & no_filtered_items_msg attributes are not defined as translatable in VLT. See EXT-5931
+ void setNoItemsMsg(const std::string& msg) { mNoItemsMsg = msg; }
+ void setNoFilteredItemsMsg(const std::string& msg) { mNoFilteredItemsMsg = msg; }
+
+ bool getForceShowingUnmatchedItems();
+
+ void setForceShowingUnmatchedItems(bool show);
+
+ /**
+ * Sets up new filter string and filters the list.
+ */
+ void setFilterSubString(const std::string& filter_str, bool notify_parent);
+ std::string getFilterSubString() { return mFilterSubString; }
+
+ /**
+ * Filters the list, rearranges and notifies parent about shape changes.
+ * Derived classes may want to overload rearrangeItems() to exclude repeated separators after filtration.
+ */
+ void filterItems(bool re_sort, bool notify_parent);
+
+ /**
+ * Returns true if last call of filterItems() found at least one matching item
+ */
+ bool hasMatchedItems();
+
+protected:
+ LLFlatListViewEx(const Params& p);
+
+ /**
+ * Applies a message for empty list depend on passed argument.
+ *
+ * @param filter_string - if is not empty, message for filtered items will be set, otherwise for
+ * completely empty list. Value of filter string will be passed as search_term in SLURL.
+ */
+ void updateNoItemsMessage(const std::string& filter_string);
+
+ /**
+ * Applies visibility acording to action and LLFlatListView settings.
+ *
+ * @param item - item we are changing
+ * @param item - action - parameters to determin visibility from
+ */
+ bool updateItemVisibility(LLPanel* item, const LLSD &action);
+
+private:
+ std::string mNoFilteredItemsMsg;
+ std::string mNoItemsMsg;
+ std::string mFilterSubString;
+ /**
+ * Show list items that don't match current filter
+ */
+ bool mForceShowingUnmatchedItems;
+ /**
+ * True if last call of filterItems() found at least one matching item
+ */
+ bool mHasMatchedItems;
+};
+
+#endif
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