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/**
* @file llinventoryitemslist.cpp
* @brief A list of inventory items represented by LLFlatListView.
*
* Class LLInventoryItemsList implements a flat list of inventory items.
*
* $LicenseInfo:firstyear=2010&license=viewerlgpl$
* 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 "llviewerprecompiledheaders.h"
#include "llinventoryitemslist.h"
// llcommon
#include "llcommonutils.h"
#include "lltrans.h"
#include "llcallbacklist.h"
#include "llinventorylistitem.h"
#include "llinventorymodel.h"
#include "llviewerinventory.h"
LLInventoryItemsList::Params::Params()
{}
LLInventoryItemsList::LLInventoryItemsList(const LLInventoryItemsList::Params& p)
: LLFlatListViewEx(p)
, mNeedsRefresh(false)
, mForceRefresh(false)
{
// TODO: mCommitOnSelectionChange is set to "false" in LLFlatListView
// but reset to true in all derived classes. This settings might need to
// be added to LLFlatListView::Params() and/or set to "true" by default.
setCommitOnSelectionChange(true);
setNoFilteredItemsMsg(LLTrans::getString("InventoryNoMatchingItems"));
gIdleCallbacks.addFunction(idle, this);
}
// virtual
LLInventoryItemsList::~LLInventoryItemsList()
{
gIdleCallbacks.deleteFunction(idle, this);
}
void LLInventoryItemsList::refreshList(const LLInventoryModel::item_array_t item_array)
{
getIDs().clear();
LLInventoryModel::item_array_t::const_iterator it = item_array.begin();
for( ; item_array.end() != it; ++it)
{
getIDs().push_back((*it)->getUUID());
}
mNeedsRefresh = true;
}
boost::signals2::connection LLInventoryItemsList::setRefreshCompleteCallback(const commit_signal_t::slot_type& cb)
{
return mRefreshCompleteSignal.connect(cb);
}
bool LLInventoryItemsList::selectItemByValue(const LLSD& value, bool select)
{
if (!LLFlatListView::selectItemByValue(value, select) && !value.isUndefined())
{
mSelectTheseIDs.push_back(value);
return false;
}
return true;
}
void LLInventoryItemsList::updateSelection()
{
if(mSelectTheseIDs.empty()) return;
std::vector<LLSD> cur;
getValues(cur);
for(std::vector<LLSD>::const_iterator cur_id_it = cur.begin(); cur_id_it != cur.end() && !mSelectTheseIDs.empty(); ++cur_id_it)
{
uuid_vec_t::iterator select_ids_it = std::find(mSelectTheseIDs.begin(), mSelectTheseIDs.end(), *cur_id_it);
if(select_ids_it != mSelectTheseIDs.end())
{
selectItemByUUID(*select_ids_it);
mSelectTheseIDs.erase(select_ids_it);
}
}
scrollToShowFirstSelectedItem();
mSelectTheseIDs.clear();
}
void LLInventoryItemsList::doIdle()
{
if (!mNeedsRefresh) return;
if (isInVisibleChain() || mForceRefresh)
{
refresh();
mRefreshCompleteSignal(this, LLSD());
}
}
//static
void LLInventoryItemsList::idle(void* user_data)
{
LLInventoryItemsList* self = static_cast<LLInventoryItemsList*>(user_data);
if ( self )
{ // Do the real idle
self->doIdle();
}
}
LLTrace::BlockTimerStatHandle FTM_INVENTORY_ITEMS_REFRESH("Inventory List Refresh");
void LLInventoryItemsList::refresh()
{
LL_RECORD_BLOCK_TIME(FTM_INVENTORY_ITEMS_REFRESH);
static const unsigned ADD_LIMIT = 20;
uuid_vec_t added_items;
uuid_vec_t removed_items;
computeDifference(getIDs(), added_items, removed_items);
bool add_limit_exceeded = false;
unsigned int nadded = 0;
uuid_vec_t::const_iterator it = added_items.begin();
for( ; added_items.end() != it; ++it)
{
if(nadded >= ADD_LIMIT)
{
add_limit_exceeded = true;
break;
}
LLViewerInventoryItem* item = gInventory.getItem(*it);
// Do not rearrange items on each adding, let's do that on filter call
llassert(item);
if (item)
{
addNewItem(item, false);
++nadded;
}
}
it = removed_items.begin();
for( ; removed_items.end() != it; ++it)
{
// don't filter items right away
removeItemByUUID(*it, false);
}
// Filter, rearrange and notify parent about shape changes
filterItems();
bool needs_refresh = add_limit_exceeded;
setNeedsRefresh(needs_refresh);
setForceRefresh(needs_refresh);
// After list building completed, select items that had been requested to select before list was build
if(!needs_refresh)
{
updateSelection();
}
}
void LLInventoryItemsList::computeDifference(
const uuid_vec_t& vnew,
uuid_vec_t& vadded,
uuid_vec_t& vremoved)
{
uuid_vec_t vcur;
{
std::vector<LLSD> vcur_values;
getValues(vcur_values);
for (size_t i=0; i<vcur_values.size(); i++)
vcur.push_back(vcur_values[i].asUUID());
}
LLCommonUtils::computeDifference(vnew, vcur, vadded, vremoved);
}
void LLInventoryItemsList::addNewItem(LLViewerInventoryItem* item, bool rearrange /*= true*/)
{
if (!item)
{
LL_WARNS() << "No inventory item. Couldn't create flat list item." << LL_ENDL;
llassert(item != NULL);
}
LLPanelInventoryListItemBase *list_item = LLPanelInventoryListItemBase::create(item);
if (!list_item)
return;
bool is_item_added = addItem(list_item, item->getUUID(), ADD_BOTTOM, rearrange);
if (!is_item_added)
{
LL_WARNS() << "Couldn't add flat list item." << LL_ENDL;
llassert(is_item_added);
}
}
// EOF
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