Bumped copyright dates for 2013

[barry.git] / desktop / src / Mode_Sync.cc

///
/// \file       Mode_Sync.cc
///             Mode derived class for syncing
///

/*
    Copyright (C) 2009-2013, Net Direct Inc. (http://www.netdirect.ca/)

    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 of the License, 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 in the COPYING file at the
    root directory of this project for more details.
*/

#include "Mode_Sync.h"
#include "BaseFrame.h"
#include "GroupCfgDlg.h"
#include "SyncStatusDlg.h"
#include "barrydesktop.h"
#include "windowids.h"
#include <string>

using namespace std;

BEGIN_EVENT_TABLE(SyncMode, wxEvtHandler)
        EVT_BUTTON      (SyncMode_SyncNowButton, SyncMode::OnSyncNow)
        EVT_BUTTON      (SyncMode_ConfigureButton, SyncMode::OnConfigure)
        EVT_BUTTON      (SyncMode_RunAppButton, SyncMode::OnRunApp)
        EVT_BUTTON      (SyncMode_1WayResetButton, SyncMode::On1WayReset)
        EVT_LIST_ITEM_SELECTED(SyncMode_DeviceList, SyncMode::OnListSelChange)
        EVT_LIST_ITEM_DESELECTED(SyncMode_DeviceList, SyncMode::OnListSelChange)
        EVT_LIST_ITEM_ACTIVATED(SyncMode_DeviceList, SyncMode::OnConfigureDevice)
END_EVENT_TABLE()

//////////////////////////////////////////////////////////////////////////////
// SyncMode

SyncMode::SyncMode(wxWindow *parent)
        : m_parent(parent)
{
        wxBusyCursor wait;

        wxSize client_size = parent->GetClientSize();

        // create our list of devices
        m_device_set.reset( new DeviceSet(wxGetApp().GetGlobalConfig(),
                                        wxGetApp().GetOpenSync(),
                                        wxGetApp().GetResults()) );
        barryverbose(*m_device_set);

        // eliminate all duplicate device entries
        DeviceSet::subset_type subset;
        do {
                subset = m_device_set->FindDuplicates();
                if( subset.size() ) {
                        // build list of choices
                        wxArrayString choices;
                        DeviceSet::subset_type::iterator i = subset.begin();
                        for( ; i != subset.end(); ++i ) {
                                string desc = (*i)->GetIdentifyingString();
                                choices.Add( wxString(desc.c_str(), wxConvUTF8) );
                        }

                        // let the user choose
                        // FIXME - the width of the choice dialog is
                        // determined by the length of the string...
                        // which is less than ideal
                        int choice = wxGetSingleChoiceIndex(_W("Multiple configurations have been found with the same PIN.  Please select\nthe configuration that Barry Desktop should work with."),
                                _T("Duplicate PIN"),
                                choices, parent);

                        // remove everything except keep
                        if( choice != -1 ) {
                                subset.erase(subset.begin() + choice);
                        }

                        m_device_set->KillDuplicates(subset);

                        barryverbose(*m_device_set);
                }
        } while( subset.size() );

        //
        // create the window controls we need
        //

        m_topsizer.reset( new wxBoxSizer(wxVERTICAL) );

        // make space for the main header, which is not part of our
        // work area
        m_topsizer->AddSpacer(MAIN_HEADER_OFFSET);

        // add status area
        //
        // Select the device(s) you want to sync and press Sync Now
        // Press Configure... to configure the currently selected device
        // Press Run App to start the application that the device syncs with
        // Press 1-Way Reset to recover from a broken sync, copying all
        //        device data to application, or vice versa.
        //
        m_topsizer->AddSpacer(5);

        m_sync_now_button.reset( new wxButton(parent,
                                SyncMode_SyncNowButton, _T("Sync Now")));
        wxSize sync_button_size = m_sync_now_button->GetClientSize();
        int wrapwidth = client_size.GetWidth() - 20 - sync_button_size.GetWidth();

        wxBoxSizer *infosizer = new wxBoxSizer(wxHORIZONTAL);
        wxBoxSizer *linesizer = new wxBoxSizer(wxVERTICAL);

        // info lines
#define MAKE_INFO_LABEL(a, b) \
        m_label[a].reset( new wxStaticText(parent, -1, b, \
                wxPoint(15, 100)) ); \
        m_label[a]->Wrap(wrapwidth); \
        linesizer->Add(m_label[a].get(), 0, wxEXPAND, 0); \
        linesizer->AddSpacer(4);
        MAKE_INFO_LABEL(0, _W("Select the device(s) you want to sync and press Sync Now."));
        MAKE_INFO_LABEL(1, _W("Use Configure to configure the currently selected device."));
        MAKE_INFO_LABEL(2, _W("Use Run App to start the application that the device syncs with."));
        MAKE_INFO_LABEL(3, _W("Use 1-Way Reset to recover from a broken sync, copying all device data to application, or vice versa."));

        infosizer->Add( linesizer, 1, wxALIGN_LEFT, 0 );
        infosizer->Add( m_sync_now_button.get(), 0, wxALIGN_RIGHT, 0 );
        m_topsizer->Add( infosizer,
                                0, wxEXPAND | wxLEFT | wxBOTTOM | wxRIGHT, 10 );

        // status, final spacing
        m_topsizer->AddSpacer(10);

        // add device list
        wxStaticBoxSizer *box = new wxStaticBoxSizer(wxHORIZONTAL, parent,
                _W("Device List"));
        m_device_list.reset (new wxListCtrl(parent, SyncMode_DeviceList,
                                wxDefaultPosition, wxDefaultSize,
                                wxLC_REPORT /*| wxLC_VRULES*/) );
        box->Add( m_device_list.get(), 1, wxEXPAND | wxALL, 4 );
        m_topsizer->Add(box, 1, wxEXPAND | wxLEFT | wxRIGHT | wxBOTTOM, 10 );

        // add bottom buttons - these go in the bottom FOOTER area
        // so their heights must be fixed to MAIN_HEADER_OFFSET
        // minus a border of 5px top and bottom
        wxSize footer(-1, MAIN_HEADER_OFFSET - 5 - 5);
        wxBoxSizer *buttons = new wxBoxSizer(wxHORIZONTAL);
        m_run_app_button.reset( new wxButton(parent,
                                SyncMode_RunAppButton, _W("Run App"),
                                wxDefaultPosition, footer));
        m_configure_button.reset( new wxButton(parent,
                                SyncMode_ConfigureButton, _W("Configure..."),
                                wxDefaultPosition, footer) );
        m_1way_reset_button.reset( new wxButton(parent,
                                SyncMode_1WayResetButton, _W("1 Way Reset..."),
                                wxDefaultPosition, footer) );
        buttons->Add(m_run_app_button.get(), 0, wxRIGHT, 5 );
        buttons->Add(m_configure_button.get(), 0, wxRIGHT, 5 );
        buttons->Add(m_1way_reset_button.get(), 0, wxRIGHT, 5 );
        m_topsizer->Add(buttons, 0, wxALL | wxALIGN_RIGHT, 5 );

        // recalc size of children
        m_topsizer->SetDimension(0, 0,
                client_size.GetWidth(), client_size.GetHeight());

        // insert list columns based on the new list size
        wxSize list_size = m_device_list->GetSize();
        int timestamp_width = GetMaxTimestampWidth(m_device_list.get());
        // FIXME - for some reason, even with the width calculated,
        // when displayed in the listctrl, there's not enough space...
        // possibly because there's space between columns... I don't
        // know how to calculate the column inter-space size, so add
        // a constant here :-(
        timestamp_width += 8;
        int usable_width = list_size.GetWidth() - timestamp_width;
        m_device_list->InsertColumn(0, _W("PIN"),
                wxLIST_FORMAT_LEFT, usable_width * 0.16);
        m_device_list->InsertColumn(1, _W("Name"),
                wxLIST_FORMAT_LEFT, usable_width * 0.33);
        m_device_list->InsertColumn(2, _W("Connected"),
                wxLIST_FORMAT_CENTRE, usable_width * 0.16);
        m_device_list->InsertColumn(3, _W("Application"),
                wxLIST_FORMAT_CENTRE, usable_width * 0.18);
        m_device_list->InsertColumn(4, _W("Engine"),
                wxLIST_FORMAT_CENTRE, usable_width * 0.17);
        m_device_list->InsertColumn(5, _W("Last Sync"),
                wxLIST_FORMAT_CENTRE, timestamp_width);

        FillDeviceList();

        // attempt to re-select the devices as we last saw them
        ReselectDevices(m_device_set->String2Subset(wxGetApp().GetGlobalConfig().GetKey("SelectedDevices")));
        UpdateButtons();

        // connect ourselves to the parent's event handling chain
        // do this last, so that we are guaranteed our destructor
        // will run, in case of exceptions
        m_parent->PushEventHandler(this);
}

SyncMode::~SyncMode()
{
        m_parent->PopEventHandler();

        // save selected devices for later
        wxGetApp().GetGlobalConfig().SetKey("SelectedDevices",
                DeviceSet::Subset2String(GetSelectedDevices()));
}

std::string SyncMode::Timestamp(time_t last_sync)
{
        string ret;
        struct tm local;
        if( localtime_r(&last_sync, &local) != NULL ) {
                char timestamp[20];
                strftime(timestamp, sizeof(timestamp), "%b %d, %H:%M", &local);
                ret = timestamp;
        }
        return ret;
}

int SyncMode::GetMaxTimestampWidth(wxWindow *win)
{
        int max_width = 0;
        DeviceSet::const_iterator i = m_device_set->begin();
        for( ; i != m_device_set->end(); ++i ) {
                int this_width = 0;
                int this_height = 0;
                if( i->GetExtras() ) {
                        time_t last_sync = i->GetExtras()->m_last_sync_time;
                        if( last_sync ) {
                                win->GetTextExtent(wxString(Timestamp(last_sync).c_str(), wxConvUTF8), &this_width, &this_height);
                        }
                }

                max_width = max(max_width, this_width);
        }

        return max_width;
}

void SyncMode::FillDeviceList()
{
        // start fresh
        m_device_list->DeleteAllItems();

        DeviceSet::const_iterator i = m_device_set->begin();
        for( int index = 0; i != m_device_set->end(); ++i, index++ ) {
                // PIN number
                wxString text(i->GetPin().Str().c_str(), wxConvUTF8);
                long item = m_device_list->InsertItem(index, text);

                // Device name
                text = wxString(i->GetDeviceName().c_str(), wxConvUTF8);
                m_device_list->SetItem(item, 1, text);

                // Connected?
                text = i->IsConnected() ? _W("Yes") : _W("No");
                m_device_list->SetItem(item, 2, text);

                // Configured?
                if( i->IsConfigured() ) {
                        text = wxString(i->GetAppNames().c_str(), wxConvUTF8);
                }
                else {
                        text = _W("(No config)");
                }
                m_device_list->SetItem(item, 3, text);

                // Engine
                if( i->GetEngine() )
                        text = wxString(i->GetEngine()->GetVersion(), wxConvUTF8);
                else
                        text = _T("");
                m_device_list->SetItem(item, 4, text);

                // Last Sync
                if( i->GetExtras() ) {
                        time_t last_sync = i->GetExtras()->m_last_sync_time;
                        if( last_sync ) {
                                wxString ts(Timestamp(last_sync).c_str(), wxConvUTF8);
                                m_device_list->SetItem(item, 5, ts);
                        }
                }
        }

        UpdateButtons();
}

void SyncMode::UpdateButtons()
{
        int selected_count = m_device_list->GetSelectedItemCount();

        // update the SyncNow button (only on if anything is selected)
        m_sync_now_button->Enable(selected_count > 0);
        m_configure_button->Enable(selected_count == 1);
        m_run_app_button->Enable(selected_count == 1);
        m_1way_reset_button->Enable(selected_count == 1);

        // if only one item is selected, enable RunApp button
        bool enable_run_app = false;
        if( selected_count == 1 ) {
                // good, only one is selected, find out which one
                long item = -1;
                item = m_device_list->GetNextItem(item, wxLIST_NEXT_ALL,
                        wxLIST_STATE_SELECTED);

                if( item != -1 ) {
                        DeviceEntry &entry = (*m_device_set)[item];
                        if( entry.GetAppNames().size() ) {
                                // has application configured!
                                enable_run_app = true;
                        }
                }
        }
        m_run_app_button->Enable(enable_run_app);
}

DeviceSet::subset_type SyncMode::GetSelectedDevices()
{
        DeviceSet::subset_type subset;

        long item = -1;
        do {
                item = m_device_list->GetNextItem(item, wxLIST_NEXT_ALL,
                        wxLIST_STATE_SELECTED);

                if( item != -1 ) {
                        subset.push_back(m_device_set->begin() + item);
                }
        } while( item != -1 );

        return subset;
}

void SyncMode::ReselectDevices(const DeviceSet::subset_type &set)
{
        for( long item = m_device_list->GetNextItem(-1); item != -1;
                item = m_device_list->GetNextItem(item) )
        {
                bool selected = DeviceSet::FindPin(set, (*m_device_set)[item].GetPin()) != set.end();

                m_device_list->SetItemState(item,
                        selected ? wxLIST_STATE_SELECTED : 0,
                        wxLIST_STATE_SELECTED);
        }
}

void SyncMode::ConfigureDevice(int device_index)
{
        DeviceEntry &entry = (*m_device_set)[device_index];
        ConfigureDevice(entry);
}

void SyncMode::ConfigureDevice(DeviceEntry &entry)
{
        // make sure it's not already running
        if( m_cui.get() && m_cui->IsAppRunning() ) {
                wxMessageBox(_W("An application is currently running."),
                        _W("Run App Error"), wxOK | wxICON_ERROR, m_parent);
                return;
        }

        GroupCfgDlg dlg(m_parent, entry, wxGetApp().GetOpenSync());
        if( dlg.ShowModal() == wxID_OK &&
            dlg.GetEngine() &&
            dlg.GetGroup().get() &&
            dlg.GetExtras().get() )
        {
                bool skip_rewrite = false;
                bool delete_old = false;

                // does old group exist?
                if( entry.GetEngine() &&
                    entry.GetConfigGroup() &&
                    entry.GetConfigGroup()->GroupExists(*entry.GetEngine()) )
                {
                        // yes, is the new group equal?
                        string v1 = entry.GetEngine()->GetVersion();
                        string v2 = dlg.GetEngine()->GetVersion();
                        skip_rewrite = (v1 == v2 &&
                              dlg.GetGroup()->Compare(*entry.GetConfigGroup()));

                        if( skip_rewrite )  {
                                // config is the same, don't bother saving again
                                barryverbose(_C("Config is the same, skipping save"));
                        }
                        else {
                                // clean up after ourselves... if the new
                                // config uses a different engine, delete
                                // the config on the old engine
                                if( entry.GetEngine() != dlg.GetEngine() ) {
                                        delete_old = true;
                                }
                        }
                }

                if( !skip_rewrite ) try {

                        OpenSync::API *eng = dlg.GetEngine();
                        DeviceEntry::group_ptr grp = dlg.GetGroup();

                        // make sure that the save will be successful
                        if( grp->GroupExists(*eng) ) {
                                if( !grp->GroupMatchesExistingConfig(*eng) ) {
                                        if( WarnAbout1WayReset() ) {
                                                eng->DeleteGroup(grp->GetGroupName());
                                                grp->DisconnectMembers();
                                        }
                                        else {
                                                // skip save
                                                return;
                                        }
                                }
                                else {
                                        // group we want to save has the
                                        // same set of plugins and member IDs
                                        // as the one already there...
                                        // so do not disconnect members
                                }
                        }
                        else {
                                // we are saving a brand new group, so make
                                // sure that all members are new
                                grp->DisconnectMembers();
                        }

                        // save the new one
                        grp->Save(*dlg.GetEngine());

                        // clean up the old engine's group, so we don't leave
                        // garbage behind... do this after a successful
                        // save, so that we don't delete existing knowledge
                        // before we've crossed over
                        if( delete_old ) {
                                barryverbose("Engine change detected in config: deleting old config '" << entry.GetConfigGroup()->GetGroupName() << "' from engine " << entry.GetEngine()->GetVersion() << " in order to save it to engine " << dlg.GetEngine()->GetVersion());
                                entry.GetEngine()->DeleteGroup(entry.GetConfigGroup()->GetGroupName());
                        }

                }
                catch( OpenSync::Config::SaveError &se ) {
                        barryverbose("Exception during save: " << se.what());
                        wxString msg = _W("Unable to save configuration for this device.\nError: ");
                        msg += wxString(se.what(), wxConvUTF8);
                        wxMessageBox(msg, _W("OpenSync Save Error"),
                                wxOK | wxICON_ERROR, m_parent);
                        return;
                }

                // save the extras... this is cheap, so no need to check
                // skip_rewrite
                dlg.GetExtras()->Save(wxGetApp().GetGlobalConfig(),
                                        dlg.GetGroup()->GetGroupName());

                // update the device set
                entry.SetConfigGroup(dlg.GetGroup(), dlg.GetEngine(),
                        dlg.GetExtras());
                entry.SetDeviceName(dlg.GetDeviceName());

                // update!
                RefillList();
        }
}

void SyncMode::CheckConfigured(DeviceSet::subset_type &subset)
{
        for( DeviceSet::subset_type::iterator i = subset.begin();
             i != subset.end();
             ++i )
        {
                DeviceEntry &device = *(*i);
                if( !device.IsConnected() )
                        continue;
                if( device.IsConfigured() )
                        continue;

                wxString msg = wxString::Format(
                        // TRANSLATORS: first %s is the PIN number, and
                        // the second (in parentheses) is the device name.
                        _W("Selected device %s (%s) is not yet configured.  Configure now?"),
                        wxString(device.GetPin().Str().c_str(), wxConvUTF8).c_str(),
                        wxString(device.GetDeviceName().c_str(), wxConvUTF8).c_str());

                int response = wxMessageBox(msg,
                        _W("Configure Now?"), wxYES_NO, m_parent);
                if( response == wxYES ) {
                        ConfigureDevice(device);
                }
        }
}

void SyncMode::RefillList()
{
        DeviceSet::subset_type subset = GetSelectedDevices();
        FillDeviceList();
        ReselectDevices(subset);
}

int SyncMode::GetSelectedDevice()
{
        if( m_device_list->GetSelectedItemCount() != 1 ) {
                wxMessageBox(_W("Please select one device from the list."),
                        _W("Device List"), wxOK | wxICON_ERROR, m_parent);
                return -1;
        }

        // find selected device
        long item = -1;
        item = m_device_list->GetNextItem(item, wxLIST_NEXT_ALL,
                wxLIST_STATE_SELECTED);
        return item;
}

//
// Returns an index into the config group for the given device index
// that represents the authoritative side of the sync.  This means
// that during the 1-Way Reset, the plugin at this index must NOT
// be zapped!  All the others must be zapped.
//
// Returns -1 if the user cancels, or if not enough data to decide.
//
int SyncMode::GetAuthoritativeSide(int device_index)
{
        // grab the device entry and group config
        DeviceEntry &entry = (*m_device_set)[device_index];
        OpenSync::Config::Group *group = entry.GetConfigGroup();
        if( !group )
                return -1;

        // build message
        wxString intro(_W(
                "Which device / application should be considered\n"
                "authoritative?\n"
                "\n"
                "All data in non-authoritative devices / applications\n"
                "will be deleted in order to setup a straight copy on\n"
                "the next sync."));

        // build list of devices / applications
        wxArrayString list;
        OpenSync::Config::Group::iterator gi = group->begin();
        for( ; gi != group->end(); ++gi ) {
                // the Barry plugin is special
                if( dynamic_cast<OpenSync::Config::Barry*>( (*gi).get() ) ) {
                        // this is a Barry plugin, so display the
                        // device name, not the plugin name
                        string device_name = entry.GetPin().Str();
                        if( entry.GetDeviceName().size() )
                                device_name += " (" + entry.GetDeviceName() + ")";

                        list.Add( wxString(device_name.c_str(), wxConvUTF8) );
                }
                else {
                        // add the application name
                        list.Add( wxString((*gi)->GetAppName().c_str(),
                                                wxConvUTF8) );
                }
        }

        // ask the user
        int choice = wxGetSingleChoiceIndex(intro,
                _W("Select Authoritative Device / Application"),
                list, m_parent);
        return choice;
}

bool SyncMode::ZapConflicts(int device_index, int authoritative_side)
{
        // grab the device entry and group config
        DeviceEntry &entry = (*m_device_set)[device_index];
        OpenSync::Config::Group *group = entry.GetConfigGroup();
        if( !group )
                return false;

        // cycle through list of sync plugins, zapping each
        // non-authoritative one
        OpenSync::Config::Group::iterator gi = group->begin();
        for( int i = 0; gi != group->end(); ++gi, ++i ) {

                // skip the authoritative plugin!
                if( i == authoritative_side )
                        continue;

                OpenSync::Config::Plugin &plugin = *(*gi);

                // create a configUI object, for zapping
                ConfigUI::ptr ui = ConfigUI::CreateConfigUI(plugin.GetAppName());
                if( !ui.get() ) {
                        // no possibility for zapping here... so just
                        // assume that it doesn't need it for now...
                        // worst that can happen, should be it slow-syncs
                        // all the time
                        continue;
                }

                bool success = ui->ZapData(m_parent, *gi, entry.GetEngine());
                if( !success ) {
                        // if the user cancels one, cancel all the rest
                        return false;
                }
        }

        // if we reach this, we succeeded
        return true;
}

void SyncMode::RewriteConfig(int device_index)
{
        // grab the device entry and group config
        DeviceEntry &entry = (*m_device_set)[device_index];
        OpenSync::Config::Group *group = entry.GetConfigGroup();
        OpenSync::API *engine = entry.GetEngine();
        if( !group || !engine )
                return;

        string group_name = group->GetGroupName();

        try {
                // delete the existing group name
                engine->DeleteGroup(group_name);

                // disconnect the plugins from the group, to
                // make them "new" again
                group->DisconnectMembers();

                // save
                group->Save(*engine);

                // success!
                barryverbose(group_name << " group config rewritten");
                return;
        }
        catch( std::runtime_error &re ) {
                ostringstream oss;
                oss << _C("Unable to rewrite config!  Start over manually. "
                        "Error: ") << re.what();
                wxString msg(oss.str().c_str(), wxConvUTF8);

                wxMessageBox(msg, _W("Error Rewriting Config"),
                        wxOK | wxICON_ERROR, m_parent);
        }

        // if we get here, the group is in an undefined state,
        // so delete it to make sure nothing odd is left behind
        try {
                engine->DeleteGroup(group_name);
        }
        catch( std::runtime_error &re ) {
                barryverbose("Error while deleting undefined group '" << group_name << "': " << re.what());
        }
}

bool SyncMode::WarnAbout1WayReset()
{
        int answer = wxMessageBox( _W("The sync config you are about to save "
                "is sufficiently different from the existing one that "
                "a 1-Way Reset will be required.  You will need to "
                "perform the reset at your earliest convenience, before "
                "your next sync.\n\n"
                "Continue anyway?"),
                _W("1-Way Reset Warning"),
                wxYES_NO | wxICON_QUESTION, m_parent);
        return answer == wxYES;
}

void SyncMode::OnSyncNow(wxCommandEvent &event)
{
        DeviceSet::subset_type subset = GetSelectedDevices();
        if( subset.size() == 0 )
                return; // nothing to do

        // make sure an app is not running
        if( m_cui.get() && m_cui->IsAppRunning() ) {
                wxMessageBox(_W("An application is currently running."),
                        _W("Sync Error"), wxOK | wxICON_ERROR, m_parent);
                return;
        }

        // check that all selections are configured
        CheckConfigured(subset);

        // do the sync
        SyncStatusDlg dlg(m_parent, subset);
        dlg.ShowModal();

        // update the timestamps
        RefillList();
}

void SyncMode::OnConfigure(wxCommandEvent &event)
{
        int item = GetSelectedDevice();
        if( item != -1 )
                ConfigureDevice(item);
}

void SyncMode::OnRunApp(wxCommandEvent &event)
{
        // make sure it's not already running
        if( m_cui.get() && m_cui->IsAppRunning() ) {
                wxMessageBox(_W("An application is already running."),
                        _W("Run App Error"), wxOK | wxICON_ERROR, m_parent);
                return;
        }

        // find selected device
        int item = GetSelectedDevice();
        if( item == -1 )
                return;

        // retrieve device's group config
        DeviceEntry &entry = (*m_device_set)[item];
        OpenSync::Config::Plugin *plugin = 0;
        if( entry.GetConfigGroup() )
                plugin = entry.GetConfigGroup()->GetNonBarryPlugin();
        if( !plugin )
                return;

        // run the app
        m_cui = ConfigUI::CreateConfigUI(plugin->GetAppName());
        if( m_cui.get() )
                m_cui->RunApp(m_parent);
}

void SyncMode::On1WayReset(wxCommandEvent &event)
{
        int item = GetSelectedDevice();
        if( item == -1 )
                return;

        // let user pick the authoritative side of the sync
        int side = GetAuthoritativeSide(item);
        if( side == -1 )
                return;

        // zap the data of all remaining sync elements
        if( !ZapConflicts(item, side) )
                return;

        // rewrite the config
        RewriteConfig(item);

        // reload the deviceset
        RefillList();

        // tell the user all's well
        wxMessageBox(_W("1-Way Reset is complete, and ready to sync."),
                _W("Reset Complete"), wxOK | wxICON_INFORMATION, m_parent);
}

void SyncMode::OnListSelChange(wxListEvent &event)
{
        UpdateButtons();
}

void SyncMode::OnConfigureDevice(wxListEvent &event)
{
        ConfigureDevice(event.GetIndex());
}