C++ LLInventoryModel类代码示例

// static
void LLLocalInventory::climb(LLInventoryCategory* cat,
                             LLInventoryModel::cat_array_t& cats,
                             LLInventoryModel::item_array_t& items)
{
    LLInventoryModel* model = &gInventory;

    // Add this category
    cats.push_back(LLPointer<LLViewerInventoryCategory>((LLViewerInventoryCategory*)cat));

    LLInventoryModel::cat_array_t *direct_cats;
    LLInventoryModel::item_array_t *direct_items;
    model->getDirectDescendentsOf(cat->getUUID(), direct_cats, direct_items);

    // Add items
    LLInventoryModel::item_array_t::iterator item_iter = direct_items->begin();
    LLInventoryModel::item_array_t::iterator item_end = direct_items->end();
    for( ; item_iter != item_end; ++item_iter)
    {
        items.push_back(*item_iter);
    }

    // Do subcategories
    LLInventoryModel::cat_array_t::iterator cat_iter = direct_cats->begin();
    LLInventoryModel::cat_array_t::iterator cat_end = direct_cats->end();
    for( ; cat_iter != cat_end; ++cat_iter)
    {
        climb(*cat_iter, cats, items);
    }
}

	bool handleEvent(LLPointer<LLEvent> event, const LLSD& userdata)
	{
		LLInventoryModel* model = mPtr->getPanel()->getModel();
		if(!model) return false;
		model->empty();
		model->startBackgroundFetch();
		return true;
	}

	bool callback_empty_lost_and_found(const LLSD& notification, const LLSD& response)
	{
		S32 option = LLNotification::getSelectedOption(notification, response);
		if (option == 0) // YES
		{
			LLInventoryModel* model = mPtr->getModel();
			LLUUID lost_and_found_id = model->findCategoryUUIDForType(LLAssetType::AT_LOST_AND_FOUND);
			model->purgeDescendentsOf(lost_and_found_id);
			model->notifyObservers();
		}
		return false;
	}

	bool callback_empty_trash(const LLSD& notification, const LLSD& response)
	{
		S32 option = LLNotification::getSelectedOption(notification, response);
		if (option == 0) // YES
		{
			LLInventoryModel* model = mPtr->getModel();
			LLUUID trash_id = model->findCategoryUUIDForType(LLFolderType::FT_TRASH);
			model->purgeDescendentsOf(trash_id);
			model->notifyObservers();
		}
		return false;
	}

//static
void LLLocalInventory::saveInvCache(std::string filename, LLFolderView* folder)
{
	LLInventoryModel* model = &gInventory;
	std::set<LLUUID> selected_items;
	folder->getSelectionList(selected_items);
	if(selected_items.size() < 1)
	{
		// No items selected?  Wtfboom
		return;
	}
	LLInventoryModel::cat_array_t cats;
	LLInventoryModel::item_array_t items;
	// Make complete lists of child categories and items
	std::set<LLUUID>::iterator sel_iter = selected_items.begin();
	std::set<LLUUID>::iterator sel_end = selected_items.end();
	for( ; sel_iter != sel_end; ++sel_iter)
	{
		LLInventoryCategory* cat = model->getCategory(*sel_iter);
		if(cat)
		{
			climb(cat, cats, items);
		}
	}
	// And what about items inside a folder that wasn't selected?
	// I guess I will just add selected items, so long as they aren't already added
	for(sel_iter = selected_items.begin(); sel_iter != sel_end; ++sel_iter)
	{
		LLInventoryItem* item = model->getItem(*sel_iter);
		if(item)
		{
			if(std::find(items.begin(), items.end(), item) == items.end())
			{
				items.push_back(LLPointer<LLViewerInventoryItem>((LLViewerInventoryItem*)item));
				LLInventoryCategory* parent = model->getCategory(item->getParentUUID());
				if(std::find(cats.begin(), cats.end(), parent) == cats.end())
				{
					cats.push_back(LLPointer<LLViewerInventoryCategory>((LLViewerInventoryCategory*)parent));
				}
			}
		}
	}
	LLInventoryModel::saveToFile(filename, cats, items);
}

void LLInventoryPanel::modelChanged(U32 mask)
{
	LLFastTimer t2(LLFastTimer::FTM_REFRESH);

	bool handled = false;
	if(mask & LLInventoryObserver::LABEL)
	{
		handled = true;
		// label change - empty out the display name for each object
		// in this change set.
		const std::set<LLUUID>& changed_items = gInventory.getChangedIDs();
		std::set<LLUUID>::const_iterator id_it = changed_items.begin();
		std::set<LLUUID>::const_iterator id_end = changed_items.end();
		LLFolderViewItem* view = NULL;
		LLInvFVBridge* bridge = NULL;
		for (;id_it != id_end; ++id_it)
		{
			view = mFolders->getItemByID(*id_it);
			if(view)
			{
				// request refresh on this item (also flags for filtering)
				bridge = (LLInvFVBridge*)view->getListener();
				if(bridge)
				{	// Clear the display name first, so it gets properly re-built during refresh()
					bridge->clearDisplayName();
				}
				view->refresh();
			}
		}
	}
	if((mask & (LLInventoryObserver::STRUCTURE
				| LLInventoryObserver::ADD
				| LLInventoryObserver::REMOVE)) != 0)
	{
		handled = true;
		// Record which folders are open by uuid.
		LLInventoryModel* model = getModel();
		if (model)
		{
			const std::set<LLUUID>& changed_items = gInventory.getChangedIDs();

			std::set<LLUUID>::const_iterator id_it = changed_items.begin();
			std::set<LLUUID>::const_iterator id_end = changed_items.end();
			for (;id_it != id_end; ++id_it)
			{
				// sync view with model
				LLInventoryObject* model_item = model->getObject(*id_it);
				LLFolderViewItem* view_item = mFolders->getItemByID(*id_it);

				if (model_item)
				{
					if (!view_item)
					{
						// this object was just created, need to build a view for it
						if ((mask & LLInventoryObserver::ADD) != LLInventoryObserver::ADD)
						{
							llwarns << *id_it << " is in model but not in view, but ADD flag not set" << llendl;
						}
						buildNewViews(*id_it);
						
						// select any newly created object
						// that has the auto rename at top of folder
						// root set
						if(mFolders->getRoot()->needsAutoRename())
						{
							setSelection(*id_it, FALSE);
						}
					}
					else
					{
						// this object was probably moved, check its parent
						if ((mask & LLInventoryObserver::STRUCTURE) != LLInventoryObserver::STRUCTURE)
						{
							llwarns << *id_it << " is in model and in view, but STRUCTURE flag not set" << llendl;
						}

						LLFolderViewFolder* new_parent = (LLFolderViewFolder*)mFolders->getItemByID(model_item->getParentUUID());
						if (view_item->getParentFolder() != new_parent)
						{
							view_item->getParentFolder()->extractItem(view_item);
							view_item->addToFolder(new_parent, mFolders);
						}
					}
				}
				else
				{
					if (view_item)
					{
						if ((mask & LLInventoryObserver::REMOVE) != LLInventoryObserver::REMOVE)
						{
							llwarns << *id_it << " is not in model but in view, but REMOVE flag not set" << llendl;
						}
						// item in view but not model, need to delete view
						view_item->destroyView();
					}
					else
					{
						llwarns << *id_it << "Item does not exist in either view or model, but notification triggered" << llendl;
					}
				}
//.........这里部分代码省略.........

	bool handleEvent(LLPointer<LLEvent> event, const LLSD& userdata)
	{
		LLInventoryPanel *panel = mPtr;
		LLInventoryModel* model = panel->getModel();
		if(!model) return true;
		std::set<LLUUID> selected_items = panel->getRootFolder()->getSelectionList();

		std::string name;
		static int session_num = 1;

		std::vector<LLUUID> members;
		EInstantMessage type = IM_SESSION_CONFERENCE_START;

// [RLVa:KB] - Checked: 2013-05-08 (RLVa-1.4.9)
		bool fRlvCanStartIM = true;
// [/RLVa:KB]

		for (std::set<LLUUID>::const_iterator iter = selected_items.begin(); iter != selected_items.end(); iter++)
		{

			LLUUID item = *iter;
			LLFolderViewItem* folder_item = panel->getRootFolder()->getItemByID(item);
			
			if(folder_item) 
			{
				LLFolderViewEventListener* fve_listener = folder_item->getListener();
				if (fve_listener && (fve_listener->getInventoryType() == LLInventoryType::IT_CATEGORY))
				{

					LLFolderBridge* bridge = (LLFolderBridge*)folder_item->getListener();
					if(!bridge) return true;
					LLViewerInventoryCategory* cat = bridge->getCategory();
					if(!cat) return true;
					name = cat->getName();
					LLUniqueBuddyCollector is_buddy;
					LLInventoryModel::cat_array_t cat_array;
					LLInventoryModel::item_array_t item_array;
					model->collectDescendentsIf(bridge->getUUID(),
												cat_array,
												item_array,
												LLInventoryModel::EXCLUDE_TRASH,
												is_buddy);
					S32 count = item_array.size();
					if(count > 0)
					{
						// create the session
						gIMMgr->setFloaterOpen(TRUE);

						LLAvatarTracker& at = LLAvatarTracker::instance();
						LLUUID id;
						for(S32 i = 0; i < count; ++i)
						{
							id = item_array.at(i)->getCreatorUUID();
							if(at.isBuddyOnline(id))
							{
// [RLVa:KB] - Checked: 2013-05-08 (RLVa-1.4.9)
								fRlvCanStartIM &= RlvActions::canStartIM(id);
// [RLVa:KB]
								members.push_back(id);
							}
						}
					}
				}
				else
				{
					LLFolderViewItem* folder_item = panel->getRootFolder()->getItemByID(item);
					if(!folder_item) return true;
					LLInvFVBridge* listenerp = (LLInvFVBridge*)folder_item->getListener();

					if (listenerp->getInventoryType() == LLInventoryType::IT_CALLINGCARD)
					{
						LLInventoryItem* inv_item = gInventory.getItem(listenerp->getUUID());

						if (inv_item)
						{
							LLAvatarTracker& at = LLAvatarTracker::instance();
							LLUUID id = inv_item->getCreatorUUID();

							if(at.isBuddyOnline(id))
							{
// [RLVa:KB] - Checked: 2013-05-08 (RLVa-1.4.9)
								fRlvCanStartIM &= RlvActions::canStartIM(id);
// [RLVa:KB]
								members.push_back(id);
							}
						}
					} //if IT_CALLINGCARD
				} //if !IT_CATEGORY
			}
		} //for selected_items	

		// the session_id is randomly generated UUID which will be replaced later
		// with a server side generated number

// [RLVa:KB] - Checked: 2013-05-08 (RLVa-1.4.9)
		if (!fRlvCanStartIM)
		{
			make_ui_sound("UISndIvalidOp");
			RlvUtil::notifyBlocked(RLV_STRING_BLOCKED_STARTCONF);
			return true;
//.........这里部分代码省略.........

inline LLCOFDragAndDropObserver::~LLCOFDragAndDropObserver()
{
	if (mModel != NULL && mModel->containsObserver(this))
	{
		mModel->removeObserver(this);
	}
}