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PVRChannelGroups.cpp
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PVRChannelGroups.cpp
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/*
* Copyright (C) 2012 Team XBMC
* http://www.xbmc.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with XBMC; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#include "PVRChannelGroups.h"
#include "FileItem.h"
#include "settings/GUISettings.h"
#include "guilib/GUIWindowManager.h"
#include "utils/log.h"
#include "URL.h"
#include "filesystem/File.h"
#include "PVRChannelGroupInternal.h"
#include "pvr/PVRDatabase.h"
#include "pvr/PVRManager.h"
#include "pvr/addons/PVRClients.h"
using namespace PVR;
CPVRChannelGroups::CPVRChannelGroups(bool bRadio) :
m_bRadio(bRadio)
{
}
CPVRChannelGroups::~CPVRChannelGroups(void)
{
Clear();
}
void CPVRChannelGroups::Clear(void)
{
CSingleLock lock(m_critSection);
m_groups.clear();
}
bool CPVRChannelGroups::GetGroupsFromClients(void)
{
if (! g_guiSettings.GetBool("pvrmanager.syncchannelgroups"))
return true;
return g_PVRClients->GetChannelGroups(this) == PVR_ERROR_NO_ERROR;
}
bool CPVRChannelGroups::Update(const CPVRChannelGroup &group, bool bSaveInDb)
{
if (group.GroupName().IsEmpty() && group.GroupID() <= 0)
return true;
CPVRChannelGroupPtr updateGroup;
{
CSingleLock lock(m_critSection);
// try to find the group by id
if (group.GroupID() > 0)
updateGroup = GetById(group.GroupID());
// try to find the group by name if we didn't find it yet
if (!updateGroup)
updateGroup = GetByName(group.GroupName());
if (!updateGroup)
{
// create a new group if none was found
updateGroup = CPVRChannelGroupPtr(new CPVRChannelGroup(m_bRadio, group.GroupID(), group.GroupName()));
updateGroup->SetGroupType(group.GroupType());
m_groups.push_back(updateGroup);
}
else
{
// update existing group
updateGroup->SetGroupID(group.GroupID());
updateGroup->SetGroupName(group.GroupName());
updateGroup->SetGroupType(group.GroupType());
}
}
// persist changes
if (bSaveInDb && updateGroup)
return updateGroup->Persist();
return true;
}
CFileItemPtr CPVRChannelGroups::GetByPath(const CStdString &strPath) const
{
// get the filename from curl
CURL url(strPath);
CStdString strFileName = url.GetFileName();
URIUtils::RemoveSlashAtEnd(strFileName);
CStdString strCheckPath;
for (std::vector<CPVRChannelGroupPtr>::const_iterator it = m_groups.begin(); it != m_groups.end(); it++)
{
// check if the path matches
strCheckPath.Format("channels/%s/%s/", (*it)->IsRadio() ? "radio" : "tv", (*it)->GroupName().c_str());
if (strFileName.Left(strCheckPath.length()) == strCheckPath)
{
strFileName.erase(0, strCheckPath.length());
return (*it)->GetByIndex(atoi(strFileName.c_str()));
}
}
// no match
CFileItemPtr retVal(new CFileItem);
return retVal;
}
CPVRChannelGroupPtr CPVRChannelGroups::GetById(int iGroupId) const
{
CSingleLock lock(m_critSection);
for (std::vector<CPVRChannelGroupPtr>::const_iterator it = m_groups.begin(); it != m_groups.end(); it++)
{
if ((*it)->GroupID() == iGroupId)
return *it;
}
CPVRChannelGroupPtr empty;
return empty;
}
CPVRChannelGroupPtr CPVRChannelGroups::GetByName(const CStdString &strName) const
{
CSingleLock lock(m_critSection);
for (std::vector<CPVRChannelGroupPtr>::const_iterator it = m_groups.begin(); it != m_groups.end(); it++)
{
if ((*it)->GroupName().Equals(strName))
return *it;
}
CPVRChannelGroupPtr empty;
return empty;
}
void CPVRChannelGroups::RemoveFromAllGroups(const CPVRChannel &channel)
{
CSingleLock lock(m_critSection);
for (std::vector<CPVRChannelGroupPtr>::const_iterator it = m_groups.begin(); it != m_groups.end(); it++)
{
// only delete the channel from non-system groups
if (!(*it)->IsInternalGroup())
(*it)->RemoveFromGroup(channel);
}
}
bool CPVRChannelGroups::Update(bool bChannelsOnly /* = false */)
{
bool bUpdateAllGroups = !bChannelsOnly && g_guiSettings.GetBool("pvrmanager.syncchannelgroups");
bool bReturn(true);
// sync groups
if (bUpdateAllGroups)
GetGroupsFromClients();
// sync channels in groups
{
CSingleLock lock(m_critSection);
for (std::vector<CPVRChannelGroupPtr>::iterator it = m_groups.begin(); it != m_groups.end(); it++)
{
if (bUpdateAllGroups || (*it)->IsInternalGroup())
bReturn = (*it)->Update() && bReturn;
}
}
// persist changes
return PersistAll() && bReturn;
}
bool CPVRChannelGroups::UpdateGroupsEntries(const CPVRChannelGroups &groups)
{
CSingleLock lock(m_critSection);
// go through groups list and check for deleted groups
for (int iGroupPtr = m_groups.size() - 1; iGroupPtr > 0; iGroupPtr--)
{
CPVRChannelGroup existingGroup(*m_groups.at(iGroupPtr));
CPVRChannelGroupPtr group = groups.GetByName(existingGroup.GroupName());
// user defined group wasn't found
if (existingGroup.GroupType() == PVR_GROUP_TYPE_DEFAULT && !group)
{
CLog::Log(LOGDEBUG, "PVR - %s - user defined group %s with id '%u' does not exist on the client anymore; deleting it", __FUNCTION__, existingGroup.GroupName().c_str(), existingGroup.GroupID());
DeleteGroup(*m_groups.at(iGroupPtr));
}
}
// go through the groups list and check for new groups
for (std::vector<CPVRChannelGroupPtr>::const_iterator it = groups.m_groups.begin(); it != m_groups.end(); it++)
{
// check if this group is present in this container
CPVRChannelGroupPtr existingGroup = GetByName((*it)->GroupName());
// add it if not
if (!existingGroup)
m_groups.push_back(CPVRChannelGroupPtr(new CPVRChannelGroup(m_bRadio, -1, (*it)->GroupName())));
}
return true;
}
bool CPVRChannelGroups::LoadUserDefinedChannelGroups(void)
{
CPVRDatabase *database = GetPVRDatabase();
if (!database)
return false;
bool bSyncWithBackends = g_guiSettings.GetBool("pvrmanager.syncchannelgroups");
CSingleLock lock(m_critSection);
// load the other groups from the database
int iSize = m_groups.size();
database->Get(*this);
CLog::Log(LOGDEBUG, "PVR - %s - %d user defined %s channel groups fetched from the database", __FUNCTION__, (int) (m_groups.size() - iSize), m_bRadio ? "radio" : "TV");
// load groups from the backends if the option is enabled
iSize = m_groups.size();
if (bSyncWithBackends)
{
GetGroupsFromClients();
CLog::Log(LOGDEBUG, "PVR - %s - %d new user defined %s channel groups fetched from clients", __FUNCTION__, (int) (m_groups.size() - iSize), m_bRadio ? "radio" : "TV");
}
else
CLog::Log(LOGDEBUG, "PVR - %s - 'synchannelgroups' is disabled; skipping groups from clients", __FUNCTION__);
// load group members
for (std::vector<CPVRChannelGroupPtr>::iterator it = m_groups.begin(); it != m_groups.end(); it++)
(*it)->Load();
// persist changes if we fetched groups from the backends
return bSyncWithBackends ? PersistAll() : true;
}
bool CPVRChannelGroups::Load(void)
{
CSingleLock lock(m_critSection);
// remove previous contents
Clear();
CLog::Log(LOGDEBUG, "PVR - %s - loading all %s channel groups", __FUNCTION__, m_bRadio ? "radio" : "TV");
// create and load the internal channel group
CPVRChannelGroupPtr internalChannels = CPVRChannelGroupPtr(new CPVRChannelGroupInternal(m_bRadio));
m_groups.push_back(internalChannels);
internalChannels->Load();
// load the other groups from the database
LoadUserDefinedChannelGroups();
// set the internal group as selected at startup
SetSelectedGroup(internalChannels);
CLog::Log(LOGDEBUG, "PVR - %s - %d %s channel groups loaded", __FUNCTION__, (int) m_groups.size(), m_bRadio ? "radio" : "TV");
// need at least 1 group
return m_groups.size() > 0;
}
bool CPVRChannelGroups::PersistAll(void)
{
bool bReturn(true);
CLog::Log(LOGDEBUG, "PVR - %s - persisting all changes in channel groups", __FUNCTION__);
CSingleLock lock(m_critSection);
for (std::vector<CPVRChannelGroupPtr>::iterator it = m_groups.begin(); it != m_groups.end(); it++)
bReturn &= (*it)->Persist();
return bReturn;
}
CPVRChannelGroupPtr CPVRChannelGroups::GetGroupAll(void) const
{
CSingleLock lock(m_critSection);
if (m_groups.size() > 0)
return m_groups.at(0);
CPVRChannelGroupPtr empty;
return empty;
}
int CPVRChannelGroups::GetGroupList(CFileItemList* results) const
{
int iReturn(0);
CSingleLock lock(m_critSection);
CStdString strPath;
for (std::vector<CPVRChannelGroupPtr>::const_iterator it = m_groups.begin(); it != m_groups.end(); it++)
{
strPath.Format("channels/%s/%i", m_bRadio ? "radio" : "tv", (*it)->GroupID());
CFileItemPtr group(new CFileItem(strPath, true));
group->m_strTitle = (*it)->GroupName();
results->Add(group);
++iReturn;
}
return iReturn;
}
CPVRChannelGroupPtr CPVRChannelGroups::GetPreviousGroup(const CPVRChannelGroup &group) const
{
bool bReturnNext(false);
{
CSingleLock lock(m_critSection);
for (std::vector<CPVRChannelGroupPtr>::const_reverse_iterator it = m_groups.rbegin(); it != m_groups.rend(); it++)
{
// return this entry
if (bReturnNext)
return *it;
// return the next entry
if ((*it)->GroupID() == group.GroupID())
bReturnNext = true;
}
}
// no match
return GetGroupAll();
}
CPVRChannelGroupPtr CPVRChannelGroups::GetNextGroup(const CPVRChannelGroup &group) const
{
bool bReturnNext(false);
{
CSingleLock lock(m_critSection);
for (std::vector<CPVRChannelGroupPtr>::const_iterator it = m_groups.begin(); it != m_groups.end(); it++)
{
// return this entry
if (bReturnNext)
return *it;
// return the next entry
if ((*it)->GroupID() == group.GroupID())
bReturnNext = true;
}
}
// no match
return GetGroupAll();
}
CPVRChannelGroupPtr CPVRChannelGroups::GetSelectedGroup(void) const
{
CSingleLock lock(m_critSection);
return m_selectedGroup;
}
void CPVRChannelGroups::SetSelectedGroup(CPVRChannelGroupPtr group)
{
// update the selected group
{
CSingleLock lock(m_critSection);
m_selectedGroup = group;
}
// update the channel number cache
group->Renumber();
}
bool CPVRChannelGroups::AddGroup(const CStdString &strName)
{
bool bPersist(false);
CPVRChannelGroupPtr group;
{
CSingleLock lock(m_critSection);
// check if there's no group with the same name yet
group = GetByName(strName);
if (!group)
{
// create a new group
group = CPVRChannelGroupPtr(new CPVRChannelGroup(m_bRadio, -1, strName));
m_groups.push_back(group);
bPersist = true;
}
}
// persist in the db if a new group was added
return bPersist ? group->Persist() : true;
}
bool CPVRChannelGroups::DeleteGroup(const CPVRChannelGroup &group)
{
// don't delete internal groups
if (group.IsInternalGroup())
{
CLog::Log(LOGERROR, "PVR - %s - cannot delete internal group '%s'", __FUNCTION__, group.GroupName().c_str());
return false;
}
// delete the group in this container
CSingleLock lock(m_critSection);
for (std::vector<CPVRChannelGroupPtr>::iterator it = m_groups.begin(); it != m_groups.end(); it++)
{
if ((*it)->GroupID() == group.GroupID())
{
// update the selected group in the gui if it's deleted
CPVRChannelGroupPtr selectedGroup = GetSelectedGroup();
if (selectedGroup && *selectedGroup == group)
g_PVRManager.SetPlayingGroup(GetGroupAll());
m_groups.erase(it);
break;
}
}
// delete the group from the database
CPVRDatabase *database = GetPVRDatabase();
return database ? database->Delete(group) : false;
}
void CPVRChannelGroups::FillGroupsGUI(int iWindowId, int iControlId) const
{
int iListGroupPtr(0);
int iSelectedGroupPtr(0);
CPVRChannelGroupPtr selectedGroup = g_PVRManager.GetPlayingGroup(false);
std::vector<CGUIMessage> messages;
// fetch all groups
{
CSingleLock lock(m_critSection);
for (std::vector<CPVRChannelGroupPtr>::const_iterator it = m_groups.begin(); it != m_groups.end(); it++)
{
// skip empty groups
if ((*it)->Size() == 0)
continue;
if ((*it)->GroupID() == selectedGroup->GroupID())
iSelectedGroupPtr = iListGroupPtr;
CGUIMessage msg(GUI_MSG_LABEL_ADD, iWindowId, iControlId, iListGroupPtr++);
msg.SetLabel((*it)->GroupName());
messages.push_back(msg);
}
}
// send updates
for (std::vector<CGUIMessage>::iterator it = messages.begin(); it != messages.end(); it++)
g_windowManager.SendMessage(*it);
// selected group
CGUIMessage msgSel(GUI_MSG_ITEM_SELECT, iWindowId, iControlId, iSelectedGroupPtr);
g_windowManager.SendMessage(msgSel);
}