eeschema.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2004 Jean-Pierre Charras, [email protected]
 * Copyright (C) 2008 Wayne Stambaugh <[email protected]>
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
#include <algorithm>
 
#include <api/api_handler_sch.h>
#include <api/api_server.h>
#include <api/api_utils.h>
#include <api/headless_sch_context.h>
#include <core/json_serializers.h>
#include <pgm_base.h>
#include <kiface_base.h>
#include <background_jobs_monitor.h>
#include <cli_progress_reporter.h>
#include <confirm.h>
#include <gestfich.h>
#include <eda_dde.h>
#include "eeschema_jobs_handler.h"
#include "eeschema_helpers.h"
#include <diff_merge/diff_doc_kind.h>
#include <reporter.h>
#include "git/kigit_sch_merge.h"
#include "git/kigit_sym_lib_merge.h"
#include <git/kigit_driver_registry.h>
#include <eeschema_settings.h>
#include <sch_edit_frame.h>
#include <libraries/symbol_library_adapter.h>
#include <symbol_edit_frame.h>
#include <symbol_viewer_frame.h>
#include <symbol_chooser_frame.h>
#include <dialogs/panel_grid_settings.h>
#include <dialogs/panel_simulator_preferences.h>
#include <dialogs/panel_design_block_lib_table.h>
#include <dialogs/panel_sym_lib_table.h>
#include <kiway.h>
#include <project_sch.h>
#include <richio.h>
#include <settings/settings_manager.h>
#include <symbol_editor_settings.h>
#include <sexpr/sexpr.h>
#include <sexpr/sexpr_parser.h>
#include <string_utils.h>
#include <trace_helpers.h>
#include <thread_pool.h>
#include <kiface_ids.h>
#include <widgets/kistatusbar.h>
#include <netlist_exporters/netlist_exporter_kicad.h>
#include <wx/ffile.h>
#include <wx/tokenzr.h>
#include <wildcards_and_files_ext.h>
 
#include <schematic.h>
#include <connection_graph.h>
#include <panel_template_fieldnames.h>
#include <panel_eeschema_color_settings.h>
#include <panel_sch_data_sources.h>
#include <panel_sym_color_settings.h>
#include <panel_eeschema_editing_options.h>
#include <panel_eeschema_annotation_options.h>
#include <panel_sym_editing_options.h>
#include <dialogs/panel_base_display_options.h>
#include <panel_eeschema_display_options.h>
#include <panel_sym_display_options.h>
#include <sim/simulator_frame.h>
 
#include <dialogs/panel_toolbar_customization.h>
#include <toolbars_sch_editor.h>
#include <toolbars_symbol_editor.h>
 
#include <sch_io/sch_io.h>
#include <sch_io/sch_io_mgr.h>
 
#include <wx/crt.h>
 
// The main sheet of the project
SCH_SHEET*  g_RootSheet = nullptr;
 
 
namespace SCH {
 
// Non-job kiface exports for diff/merge (returned by IfaceOrAddress). Defined
// after the kiface instance so they can route into its jobs handler.
static int eeschemaMergeExport( int aKind, const wxString& aAncestor, const wxString& aOurs,
                                const wxString& aTheirs, const wxString& aOutput, bool aInteractive,
                                bool aSingleFile, REPORTER* aReporter );
static int eeschemaOpenDiffDialogExport( int aKind, const wxString& aFileA, const wxString& aFileB,
                                         const wxString& aLabelA, const wxString& aLabelB,
                                         wxWindow* aParent, REPORTER* aReporter );
 
 
 
// TODO: This should move out of this file
static std::unique_ptr<SCHEMATIC> readSchematicFromFile( const std::string& aFilename )
{
    SCH_IO* pi = SCH_IO_MGR::FindPlugin( SCH_IO_MGR::SCH_KICAD );
    std::unique_ptr<SCHEMATIC> schematic = std::make_unique<SCHEMATIC>( nullptr );
 
    SETTINGS_MANAGER& manager = Pgm().GetSettingsManager();
 
    wxFileName pro( aFilename );
    pro.SetExt( FILEEXT::ProjectFileExtension );
    pro.MakeAbsolute();
    wxString projectPath = pro.GetFullPath();
 
    PROJECT* project = manager.GetProject( projectPath );
 
    if( !project )
    {
        manager.LoadProject( projectPath, true );
        project = manager.GetProject( projectPath );
    }
 
    schematic->Reset();
    schematic->SetProject( project );
    SCH_SHEET* rootSheet = pi->LoadSchematicFile( aFilename, schematic.get() );
 
    if( !rootSheet )
        return nullptr;
 
    std::vector<SCH_SHEET*> topLevelSheets = schematic->GetTopLevelSheets();
    bool rootIsTopLevel = std::find( topLevelSheets.begin(), topLevelSheets.end(), rootSheet )
                          != topLevelSheets.end();
    bool rootIsVirtualRoot = rootSheet == &schematic->Root() || rootSheet->IsVirtualRootSheet();
 
    if( !rootIsTopLevel && !rootIsVirtualRoot )
        schematic->SetTopLevelSheets( { rootSheet } );
 
    SCH_SCREENS screens( schematic->Root() );
 
    for( SCH_SCREEN* screen = screens.GetFirst(); screen; screen = screens.GetNext() )
        screen->UpdateLocalLibSymbolLinks();
 
    SCH_SHEET_LIST sheets = schematic->Hierarchy();
 
    // Restore all of the loaded symbol instances from the root sheet screen.
    sheets.UpdateSymbolInstanceData( schematic->RootScreen()->GetSymbolInstances() );
 
    if( schematic->RootScreen()->GetFileFormatVersionAtLoad() < 20230221 )
    {
        for( SCH_SCREEN* screen = screens.GetFirst(); screen; screen = screens.GetNext() )
            screen->FixLegacyPowerSymbolMismatches();
    }
 
    for( SCH_SCREEN* screen = screens.GetFirst(); screen; screen = screens.GetNext() )
        screen->MigrateSimModels();
 
    sheets.AnnotatePowerSymbols();
 
    // NOTE: This is required for multi-unit symbols to be correct
    for( SCH_SHEET_PATH& sheet : sheets )
        sheet.UpdateAllScreenReferences();
 
    // TODO: this must handle SchematicCleanup somehow.  The original version didn't because
    // it knew that QA test cases were saved in a clean state.
 
    // TODO: does this need to handle PruneOrphanedSymbolInstances() and
    // PruneOrphanedSheetInstances()?
 
    schematic->ConnectionGraph()->Recalculate( sheets, true );
 
    return schematic;
}
 
 
// TODO: This should move out of this file
bool generateSchematicNetlist( const wxString& aFilename, std::string& aNetlist )
{
    std::unique_ptr<SCHEMATIC> schematic = readSchematicFromFile( aFilename.ToStdString() );
    NETLIST_EXPORTER_KICAD exporter( schematic.get() );
    STRING_FORMATTER formatter;
 
    exporter.Format( &formatter, GNL_ALL | GNL_OPT_KICAD );
    aNetlist = formatter.GetString();
 
    return true;
}
 
 
static struct IFACE : public KIFACE_BASE, public UNITS_PROVIDER
{
    // Of course all are virtual overloads, implementations of the KIFACE.
 
    IFACE( const char* aName, KIWAY::FACE_T aType ) :
            KIFACE_BASE( aName, aType ),
            UNITS_PROVIDER( schIUScale, EDA_UNITS::MM ),
            m_libraryPreloadInProgress( false )
    {}
 
    bool OnKifaceStart( PGM_BASE* aProgram, int aCtlBits, KIWAY* aKiway ) override;
 
    void Reset() override;
 
    void OnKifaceEnd() override;
 
    wxWindow* CreateKiWindow( wxWindow* aParent, int aClassId, KIWAY* aKiway, int aCtlBits = 0 ) override
    {
        switch( aClassId )
        {
        case FRAME_SCH:
        {
            SCH_EDIT_FRAME* frame = new SCH_EDIT_FRAME( aKiway, aParent );
 
            EESCHEMA_HELPERS::SetSchEditFrame( frame );
 
            if( Kiface().IsSingle() )
            {
                // only run this under single_top, not under a project manager.
                frame->CreateServer( KICAD_SCH_PORT_SERVICE_NUMBER );
            }
 
            return frame;
        }
 
        case FRAME_SCH_SYMBOL_EDITOR:
            return new SYMBOL_EDIT_FRAME( aKiway, aParent );
 
        case FRAME_SIMULATOR:
        {
            try
            {
                SIMULATOR_FRAME* frame = new SIMULATOR_FRAME( aKiway, aParent );
                return frame;
            }
            catch( const SIMULATOR_INIT_ERR& )
            {
                // catch the init err exception as we don't want it to bubble up
                // its going to be some ngspice install issue but we don't want to log that
                return nullptr;
            }
        }
 
        case FRAME_SCH_VIEWER:
            return new SYMBOL_VIEWER_FRAME( aKiway, aParent );
 
        case FRAME_SYMBOL_CHOOSER:
        {
            bool cancelled = false;
            SYMBOL_CHOOSER_FRAME* chooser = new SYMBOL_CHOOSER_FRAME( aKiway, aParent, cancelled );
 
            if( cancelled )
            {
                chooser->Destroy();
                return nullptr;
            }
 
            return chooser;
        }
 
        case DIALOG_SCH_LIBRARY_TABLE:
            InvokeSchEditSymbolLibTable( aKiway, aParent );
            // Dialog has completed; nothing to return.
            return nullptr;
 
        case DIALOG_DESIGN_BLOCK_LIBRARY_TABLE:
            InvokeEditDesignBlockLibTable( aKiway, aParent );
            // Dialog has completed; nothing to return.
            return nullptr;
 
        case PANEL_SYM_DISP_OPTIONS:
            return new PANEL_SYM_DISPLAY_OPTIONS( aParent, GetAppSettings<SYMBOL_EDITOR_SETTINGS>( "symbol_editor" ) );
 
        case PANEL_SYM_EDIT_GRIDS:
        {
            APP_SETTINGS_BASE* cfg = GetAppSettings<SYMBOL_EDITOR_SETTINGS>( "symbol_editor" );
            EDA_BASE_FRAME*    frame = aKiway->Player( FRAME_SCH_SYMBOL_EDITOR, false );
 
            if( !frame )
                frame = aKiway->Player( FRAME_SCH_VIEWER, false );
 
            if( !frame )
                frame = aKiway->Player( FRAME_SCH, false );
 
            if( frame )
                SetUserUnits( frame->GetUserUnits() );
 
            return new PANEL_GRID_SETTINGS( aParent, this, frame, cfg, FRAME_SCH_SYMBOL_EDITOR );
        }
 
        case PANEL_SYM_EDIT_OPTIONS:
        {
            EDA_BASE_FRAME* frame = aKiway->Player( FRAME_SCH_SYMBOL_EDITOR, false );
 
            if( !frame )
                frame = aKiway->Player( FRAME_SCH_VIEWER, false );
 
            if( !frame )
                frame = aKiway->Player( FRAME_SCH, false );
 
            if( frame )
                SetUserUnits( frame->GetUserUnits() );
 
            return new PANEL_SYM_EDITING_OPTIONS( aParent, this, frame );
        }
 
        case PANEL_SYM_TOOLBARS:
        {
            APP_SETTINGS_BASE* cfg = GetAppSettings<SYMBOL_EDITOR_SETTINGS>( "symbol_editor" );
            TOOLBAR_SETTINGS*  tb  = GetToolbarSettings<SYMBOL_EDIT_TOOLBAR_SETTINGS>( "symbol_editor-toolbars" );
 
            std::vector<TOOL_ACTION*>            actions;
            std::vector<ACTION_TOOLBAR_CONTROL*> controls;
 
            for( TOOL_ACTION* action : ACTION_MANAGER::GetActionList() )
                actions.push_back( action );
 
            for( ACTION_TOOLBAR_CONTROL* control : ACTION_TOOLBAR::GetCustomControlList( FRAME_SCH_SYMBOL_EDITOR ) )
                controls.push_back( control );
 
            return new PANEL_TOOLBAR_CUSTOMIZATION( aParent, cfg, tb, FRAME_SCH_SYMBOL_EDITOR, actions, controls );
        }
 
        case PANEL_SYM_COLORS:
            return new PANEL_SYM_COLOR_SETTINGS( aParent );
 
        case PANEL_SCH_DISP_OPTIONS:
            return new PANEL_EESCHEMA_DISPLAY_OPTIONS( aParent, GetAppSettings<EESCHEMA_SETTINGS>( "eeschema" ) );
 
        case PANEL_SCH_GRIDS:
        {
            EESCHEMA_SETTINGS* cfg = GetAppSettings<EESCHEMA_SETTINGS>( "eeschema" );
            EDA_BASE_FRAME*    frame = aKiway->Player( FRAME_SCH, false );
 
            if( !frame )
                frame = aKiway->Player( FRAME_SCH_SYMBOL_EDITOR, false );
 
            if( !frame )
                frame = aKiway->Player( FRAME_SCH_VIEWER, false );
 
            if( frame )
                SetUserUnits( frame->GetUserUnits() );
 
            return new PANEL_GRID_SETTINGS( aParent, this, frame, cfg, FRAME_SCH );
        }
 
        case PANEL_SCH_EDIT_OPTIONS:
        {
            EDA_BASE_FRAME* frame = aKiway->Player( FRAME_SCH, false );
 
            if( !frame )
                frame = aKiway->Player( FRAME_SCH_SYMBOL_EDITOR, false );
 
            if( !frame )
                frame = aKiway->Player( FRAME_SCH_VIEWER, false );
 
            if( frame )
                SetUserUnits( frame->GetUserUnits() );
 
            return new PANEL_EESCHEMA_EDITING_OPTIONS( aParent, this, frame );
        }
 
        case PANEL_SCH_TOOLBARS:
        {
            APP_SETTINGS_BASE* cfg = GetAppSettings<EESCHEMA_SETTINGS>( "eeschema" );
            TOOLBAR_SETTINGS*  tb  = GetToolbarSettings<SCH_EDIT_TOOLBAR_SETTINGS>( "eeschema-toolbars" );
 
            std::vector<TOOL_ACTION*>            actions;
            std::vector<ACTION_TOOLBAR_CONTROL*> controls;
 
            for( TOOL_ACTION* action : ACTION_MANAGER::GetActionList() )
                actions.push_back( action );
 
            for( ACTION_TOOLBAR_CONTROL* control : ACTION_TOOLBAR::GetCustomControlList( FRAME_SCH ) )
                controls.push_back( control );
 
            return new PANEL_TOOLBAR_CUSTOMIZATION( aParent, cfg, tb, FRAME_SCH, actions, controls );
        }
 
        case PANEL_SCH_COLORS:
            return new PANEL_EESCHEMA_COLOR_SETTINGS( aParent );
 
        case PANEL_SCH_FIELD_NAME_TEMPLATES:
            return new PANEL_TEMPLATE_FIELDNAMES( aParent, nullptr );
 
        case PANEL_SCH_DATA_SOURCES:
        {
            EDA_BASE_FRAME* frame = aKiway->Player( FRAME_SCH, false );
 
            if( !frame )
                frame = aKiway->Player( FRAME_SCH_SYMBOL_EDITOR, false );
 
            if( !frame )
                frame = aKiway->Player( FRAME_SCH_VIEWER, false );
 
            return new class PANEL_SCH_DATA_SOURCES( aParent, frame );
        }
 
        case PANEL_SCH_SIMULATOR:
            return new PANEL_SIMULATOR_PREFERENCES( aParent );
 
        default:
            return nullptr;
        }
    }

    void* IfaceOrAddress( int aDataId ) override
    {
        switch( aDataId )
        {
            case KIFACE_NETLIST_SCHEMATIC:
                return (void*) generateSchematicNetlist;
 
            case KIFACE_MERGE_DOCUMENT:
                return reinterpret_cast<void*>( &eeschemaMergeExport );
 
            case KIFACE_OPEN_DIFF_DIALOG:
                return reinterpret_cast<void*>( &eeschemaOpenDiffDialogExport );
        }
 
        return nullptr;
    }

    EESCHEMA_JOBS_HANDLER* JobHandler() const { return m_jobHandler.get(); }

    void SaveFileAs( const wxString& aProjectBasePath, const wxString& aProjectName,
                     const wxString& aNewProjectBasePath, const wxString& aNewProjectName,
                     const wxString& aSrcFilePath, wxString& aErrors ) override;
 
 
    int HandleJob( JOB* aJob, REPORTER* aReporter, PROGRESS_REPORTER* aProgressReporter ) override;
 
    bool HandleJobConfig( JOB* aJob, wxWindow* aParent ) override;
 
    bool HandleApiOpenDocument( const wxString& aPath,
                                KICAD_API_SERVER* aServer,
                                wxString* aError ) override;
 
    bool HandleApiCloseDocument( const wxString& aSchFileName,
                                 KICAD_API_SERVER* aServer,
                                 wxString* aError ) override;
 
    void PreloadLibraries( KIWAY* aKiway ) override;
    void CancelPreload( bool aBlock = true ) override;
    void ProjectChanged() override;
 
private:
    std::unique_ptr<EESCHEMA_JOBS_HANDLER> m_jobHandler;
    std::shared_ptr<BACKGROUND_JOB>        m_libraryPreloadBackgroundJob;
    std::future<void>                      m_libraryPreloadReturn;
    std::atomic_bool                       m_libraryPreloadInProgress;
    std::atomic_bool                       m_libraryPreloadAbort;
 
    void closeCurrentDocument( KICAD_API_SERVER* aServer );
 
    KIWAY*                                    m_kiway = nullptr;
    SCHEMATIC*                                m_openSchematic = nullptr;
    std::shared_ptr<HEADLESS_SCH_CONTEXT>     m_openContext;
    std::unique_ptr<API_HANDLER_SCH>          m_openHandler;
 
} kiface( "eeschema", KIWAY::FACE_SCH );
 
 
int eeschemaMergeExport( int aKind, const wxString& aAncestor, const wxString& aOurs,
                         const wxString& aTheirs, const wxString& aOutput, bool aInteractive,
                         bool aSingleFile, REPORTER* aReporter )
{
    return kiface.JobHandler()->RunMerge( static_cast<KICAD_DIFF::DOC_KIND>( aKind ), aAncestor,
                                          aOurs, aTheirs, aOutput, aInteractive, aSingleFile,
                                          aReporter );
}
 
 
int eeschemaOpenDiffDialogExport( int aKind, const wxString& aFileA, const wxString& aFileB,
                                  const wxString& aLabelA, const wxString& aLabelB,
                                  wxWindow* aParent, REPORTER* aReporter )
{
    return kiface.JobHandler()->OpenDiffDialog( static_cast<KICAD_DIFF::DOC_KIND>( aKind ), aFileA,
                                                aFileB, aLabelA, aLabelB, aParent, aReporter );
}
 
} // namespace
 
using namespace SCH;
 
 
KIFACE_BASE& Kiface() { return kiface; }
 
 
// KIFACE_GETTER's actual spelling is a substitution macro found in kiway.h.
// KIFACE_GETTER will not have name mangling due to declaration in kiway.h.
KIFACE_API KIFACE* KIFACE_GETTER(  int* aKIFACEversion, int aKiwayVersion, PGM_BASE* aProgram )
{
    return &kiface;
}
 
 
bool IFACE::OnKifaceStart( PGM_BASE* aProgram, int aCtlBits, KIWAY* aKiway )
{
    // This is process-level-initialization, not project-level-initialization of the DSO.
    // Do nothing in here pertinent to a project!
    InitSettings( new EESCHEMA_SETTINGS );
 
    // Register the symbol editor settings as well because they share a KiFACE and need to be
    // loaded prior to use to avoid threading deadlocks
    SYMBOL_EDITOR_SETTINGS* symSettings = new SYMBOL_EDITOR_SETTINGS();
    aProgram->GetSettingsManager().RegisterSettings( symSettings ); // manager takes ownership
 
    // We intentionally register KifaceSettings after SYMBOL_EDITOR_SETTINGS
    // In legacy configs, many settings were in a single editor config nd the migration routine
    // for the main editor file will try and call into the now separate settings stores
    // to move the settings into them
    aProgram->GetSettingsManager().RegisterSettings( KifaceSettings() );
 
    start_common( aCtlBits );
 
    m_kiway = aKiway;
 
    m_jobHandler = std::make_unique<EESCHEMA_JOBS_HANDLER>( aKiway );
 
    if( m_start_flags & KFCTL_CLI )
    {
        m_jobHandler->SetReporter( &CLI_REPORTER::GetInstance() );
        m_jobHandler->SetProgressReporter( &CLI_PROGRESS_REPORTER::GetInstance() );
    }
 
    // Register the schematic and symbol-library merge drivers with libgit2 so
    // `.gitattributes` entries `merge=kicad-sch` and `merge=kicad-sym-lib`
    // route through KiCad-aware merge logic.
    KIGIT::RegisterMergeDriver( "kicad-sch",     &KIGIT_SCH_MERGE::Apply );
    KIGIT::RegisterMergeDriver( "kicad-sym-lib", &KIGIT_SYM_LIB_MERGE::Apply );
 
    return true;
}
 
 
void IFACE::Reset()
{
}
 
 
void IFACE::PreloadLibraries( KIWAY* aKiway )
{
    constexpr static int interval = 150;
    constexpr static int timeLimit = 120000;
 
    wxCHECK( aKiway, /* void */ );
 
    // Use compare_exchange to atomically check and set the flag to prevent race conditions
    // when PreloadLibraries is called multiple times concurrently (e.g., from project manager
    // and schematic editor both scheduling via CallAfter)
    bool expected = false;
 
    if( !m_libraryPreloadInProgress.compare_exchange_strong( expected, true ) )
        return;
 
    Pgm().ClearLibraryLoadMessages();
 
    m_libraryPreloadBackgroundJob =
            Pgm().GetBackgroundJobMonitor().Create( _( "Loading Symbol Libraries" ) );
 
    auto preload =
        [this, aKiway]() -> void
        {
            std::shared_ptr<BACKGROUND_JOB_REPORTER> reporter =
                    m_libraryPreloadBackgroundJob->m_reporter;
 
            SYMBOL_LIBRARY_ADAPTER* adapter = PROJECT_SCH::SymbolLibAdapter( &aKiway->Prj() );
 
            int  elapsed = 0;
            bool aborted = false;
 
            reporter->Report( _( "Loading Symbol Libraries" ) );
            adapter->AsyncLoad();
 
            while( true )
            {
                if( m_libraryPreloadAbort.load() )
                {
                    m_libraryPreloadAbort.store( false );
                    aborted = true;
                    break;
                }
 
                std::this_thread::sleep_for( std::chrono::milliseconds( interval ) );
 
                if( std::optional<float> loadStatus = adapter->AsyncLoadProgress() )
                {
                    float progress = *loadStatus;
                    reporter->SetCurrentProgress( progress );
 
                    if( progress >= 1 )
                        break;
                }
                else
                {
                    reporter->SetCurrentProgress( 1 );
                    break;
                }
 
                elapsed += interval;
 
                if( elapsed > timeLimit )
                    break;
            }
 
            // AbortAsyncLoad() sets the adapter's worker abort flag and then blocks,
            // so workers exit at their next checkpoint. BlockUntilLoaded() alone just
            // waits for each future to complete naturally, which can hang indefinitely
            // if a worker is stuck on a stalled network or filesystem operation.
            if( aborted )
                adapter->AbortAsyncLoad();
            else
                adapter->BlockUntilLoaded();
 
            // If aborted, skip operations that use the adapter since the project may have changed
            // and the adapter's project reference could be stale. This prevents use-after-free
            // crashes when switching projects during library preload.
            if( !aborted )
            {
                // Collect library load errors for async reporting
                wxString errors = adapter->GetLibraryLoadErrors();
 
                wxLogTrace( traceLibraries, "eeschema PreloadLibraries: errors.IsEmpty()=%d, length=%zu",
                            errors.IsEmpty(), errors.length() );
 
                std::vector<LOAD_MESSAGE> messages = ExtractLibraryLoadErrors( errors, RPT_SEVERITY_ERROR );
 
                if( !messages.empty() )
                {
                    wxLogTrace( traceLibraries, "  -> collected %zu messages, calling AddLibraryLoadMessages",
                                messages.size() );
                    Pgm().AddLibraryLoadMessages( messages );
                }
                else
                {
                    wxLogTrace( traceLibraries, "  -> no errors from symbol libraries" );
                }
            }
            else
            {
                wxLogTrace( traceLibraries, "eeschema PreloadLibraries: aborted, skipping symbol processing" );
            }
 
            Pgm().GetBackgroundJobMonitor().Remove( m_libraryPreloadBackgroundJob );
            m_libraryPreloadBackgroundJob.reset();
            m_libraryPreloadInProgress.store( false );
 
            // Only send reload notifications if we weren't aborted
            if( !aborted )
            {
                std::string payload = "";
                aKiway->ExpressMail( FRAME_SCH, MAIL_RELOAD_LIB, payload, nullptr, true );
                aKiway->ExpressMail( FRAME_SCH_SYMBOL_EDITOR, MAIL_RELOAD_LIB, payload, nullptr, true );
                aKiway->ExpressMail( FRAME_SCH_VIEWER, MAIL_RELOAD_LIB, payload, nullptr, true );
            }
        };
 
    std::future<void> preloadFuture = std::async( std::launch::async, preload );
    m_libraryPreloadReturn = std::move( preloadFuture );
}
 
 
void IFACE::CancelPreload( bool aBlock )
{
    if( m_libraryPreloadInProgress.load() )
    {
        m_libraryPreloadAbort.store( true );
 
        if( aBlock )
            m_libraryPreloadReturn.wait();
    }
}
 
 
void IFACE::ProjectChanged()
{
    if( m_libraryPreloadInProgress.load() )
        m_libraryPreloadAbort.store( true );
}
 
 
void IFACE::OnKifaceEnd()
{
    end_common();
}
 
 
void IFACE::SaveFileAs( const wxString& aProjectBasePath, const wxString& aProjectName,
                        const wxString& aNewProjectBasePath, const wxString& aNewProjectName,
                        const wxString& aSrcFilePath, wxString& aErrors )
{
    wxFileName destFile( aSrcFilePath );
    wxString   destPath = destFile.GetPathWithSep();
    wxUniChar  pathSep = wxFileName::GetPathSeparator();
    wxString   ext = destFile.GetExt();
 
    if( destPath.StartsWith( aProjectBasePath + pathSep ) )
        destPath.Replace( aProjectBasePath, aNewProjectBasePath, false );
 
    destFile.SetPath( destPath );
 
    if( ext == FILEEXT::LegacySchematicFileExtension
        || ext == FILEEXT::LegacySchematicFileExtension + FILEEXT::BackupFileSuffix
        || ext == FILEEXT::KiCadSchematicFileExtension
        || ext == FILEEXT::KiCadSchematicFileExtension + FILEEXT::BackupFileSuffix )
    {
        if( destFile.GetName() == aProjectName )
        {
            destFile.SetName( aNewProjectName  );
        }
        else if( destFile.GetName() == aNewProjectName )
        {
            wxString msg;
 
            if( !aErrors.empty() )
                aErrors += wxS( "\n" );
 
            msg.Printf( _( "Cannot copy file '%s' as it will be overwritten by the new root "
                           "sheet file." ), destFile.GetFullPath() );
            aErrors += msg;
            return;
        }
 
        CopySexprFile( aSrcFilePath, destFile.GetFullPath(),
                [&]( const std::string& token, wxString& value ) -> bool
                {
                    if( token == "project" && value == aProjectName )
                    {
                        value = aNewProjectName;
                        return true;
                    }
 
                    return false;
                },
                aErrors );
    }
    else if( ext == FILEEXT::SchematicSymbolFileExtension )
    {
        // Symbols are not project-specific.  Keep their source names.
        KiCopyFile( aSrcFilePath, destFile.GetFullPath(), aErrors );
    }
    else if( ext == FILEEXT::LegacySymbolLibFileExtension
             || ext == FILEEXT::LegacySymbolDocumentFileExtension
             || ext == FILEEXT::KiCadSymbolLibFileExtension )
    {
        if( destFile.GetName() == aProjectName + wxS( "-cache" ) )
            destFile.SetName( aNewProjectName + wxS( "-cache" ) );
 
        if( destFile.GetName() == aProjectName + wxS( "-rescue" ) )
            destFile.SetName( aNewProjectName + wxS( "-rescue" ) );
 
        KiCopyFile( aSrcFilePath, destFile.GetFullPath(), aErrors );
    }
    else if( ext == FILEEXT::NetlistFileExtension )
    {
        if( destFile.GetName() == aProjectName )
            destFile.SetName( aNewProjectName );
 
        CopySexprFile( aSrcFilePath, destFile.GetFullPath(),
                [&]( const std::string& token, wxString& value ) -> bool
                {
                    if( token == "source" )
                    {
                        for( const wxString& extension : { wxString( wxT( ".sch" ) ), wxString( wxT( ".kicad_sch" ) ) } )
                        {
                            if( value == aProjectName + extension )
                            {
                                value = aNewProjectName + extension;
                                return true;
                            }
                            else if( value == aProjectBasePath + "/" + aProjectName + extension )
                            {
                                value = aNewProjectBasePath + "/" + aNewProjectName + extension;
                                return true;
                            }
                            else if( value.StartsWith( aProjectBasePath ) )
                            {
                                value.Replace( aProjectBasePath, aNewProjectBasePath, false );
                                return true;
                            }
                        }
                    }
 
                    return false;
                },
                aErrors );
    }
    else if( destFile.GetName() == FILEEXT::SymbolLibraryTableFileName )
    {
        wxFileName    libTableFn( aSrcFilePath );
        LIBRARY_TABLE libTable( libTableFn, LIBRARY_TABLE_SCOPE::PROJECT );
        libTable.SetPath( destFile.GetFullPath() );
        libTable.SetType( LIBRARY_TABLE_TYPE::SYMBOL );
 
        for( LIBRARY_TABLE_ROW& row : libTable.Rows() )
        {
            wxString uri = row.URI();
 
            uri.Replace( wxS( "/" ) + aProjectName + wxS( "-cache.lib" ),
                         wxS( "/" ) + aNewProjectName + wxS( "-cache.lib" ) );
            uri.Replace( wxS( "/" ) + aProjectName + wxS( "-rescue.lib" ),
                         wxS( "/" ) + aNewProjectName +  wxS( "-rescue.lib" ) );
            uri.Replace( wxS( "/" ) + aProjectName + wxS( ".lib" ),
                         wxS( "/" ) + aNewProjectName + wxS( ".lib" ) );
 
            row.SetURI( uri );
        }
 
        libTable.Save().map_error(
                [&]( const LIBRARY_ERROR& aError )
                {
                        wxString msg;
 
                        if( !aErrors.empty() )
                            aErrors += wxT( "\n" );
 
                        msg.Printf( _( "Cannot copy file '%s'." ), destFile.GetFullPath() );
                        aErrors += msg;
                } );
    }
    else
    {
        wxFAIL_MSG( wxS( "Unexpected filetype for Eeschema::SaveFileAs()" ) );
    }
}
 
 
int IFACE::HandleJob( JOB* aJob, REPORTER* aReporter, PROGRESS_REPORTER* aProgressReporter )
{
    return m_jobHandler->RunJob( aJob, aReporter, aProgressReporter );
}
 
 
bool IFACE::HandleJobConfig( JOB* aJob, wxWindow* aParent )
{
    return m_jobHandler->HandleJobConfig( aJob, aParent );
}
 
 
// TODO(JE) some of the below methods can probably be factored out and shared between sch/pcb
void IFACE::closeCurrentDocument( KICAD_API_SERVER* aServer )
{
    if( m_openHandler )
    {
        if( aServer )
            aServer->DeregisterHandler( m_openHandler.get() );
 
        m_openHandler.reset();
    }
 
    m_openContext.reset();
 
    delete m_openSchematic;
    m_openSchematic = nullptr;
 
    // The jobs handler caches the last-loaded schematic. Clear it so the next job
    // uses the schematic from the newly opened document rather than a stale copy.
    m_jobHandler->ClearCachedSchematic();
}
 
 
bool IFACE::HandleApiOpenDocument( const wxString& aPath, KICAD_API_SERVER* aServer,
                                   wxString* aError )
{
    wxCHECK( aServer, false );
 
    if( aPath.IsEmpty() )
    {
        if( aError )
            *aError = wxS( "No path specified to open" );
 
        return false;
    }
 
    wxFileName projectPath( aPath );
 
    if( projectPath.GetExt() == FILEEXT::KiCadSchematicFileExtension )
        projectPath.SetExt( FILEEXT::ProjectFileExtension );
    else if( projectPath.GetExt() != FILEEXT::ProjectFileExtension )
        projectPath.SetExt( FILEEXT::ProjectFileExtension );
 
    projectPath.MakeAbsolute();
 
    // Close any existing document before loading a new project. LoadProject with
    // aSetActive=true destroys the old PROJECT, which would leave the old schematic
    // and context holding dangling project pointers.
    closeCurrentDocument( aServer );
 
    SETTINGS_MANAGER& settingsManager = Pgm().GetSettingsManager();
 
    if( !settingsManager.LoadProject( projectPath.GetFullPath(), true ) )
    {
        wxLogTrace( traceApi, "Warning: no project file found for %s", aPath );
    }
 
    PROJECT* project = settingsManager.GetProject( projectPath.GetFullPath() );
 
    if( !project )
    {
        if( aError )
            *aError = wxString::Format( wxS( "Error loading project for %s" ), aPath );
 
        return false;
    }
 
    wxFileName schPath( projectPath );
    schPath.SetExt( FILEEXT::KiCadSchematicFileExtension );
 
    if( !schPath.FileExists() )
    {
        if( aError )
            *aError = wxString::Format( wxS( "File not found: %s" ), schPath.GetFullPath() );
 
        return false;
    }
 
    SCHEMATIC* schematic = nullptr;
 
    try
    {
        schematic = EESCHEMA_HELPERS::LoadSchematic( schPath.GetFullPath(), false, false, project );
 
        if( !schematic )
        {
            if( aError )
                *aError = wxS( "Failed to load schematic" );
 
            return false;
        }
    }
    catch( ... )
    {
        if( aError )
            *aError = wxS( "Failed to load schematic" );
 
        return false;
    }
 
    m_openSchematic = schematic;
 
    m_openContext = std::make_shared<HEADLESS_SCH_CONTEXT>( m_openSchematic, project, m_kiway );
    m_openHandler = std::make_unique<API_HANDLER_SCH>( m_openContext );
    aServer->RegisterHandler( m_openHandler.get() );
 
    return true;
}
 
 
bool IFACE::HandleApiCloseDocument( const wxString& aSchFileName, KICAD_API_SERVER* aServer,
                                    wxString* aError )
{
    wxCHECK( aServer, false );
 
    if( !m_openContext )
    {
        if( aError )
            *aError = wxS( "No document is currently open" );
 
        return false;
    }
 
    if( !aSchFileName.IsEmpty() )
    {
        wxFileName currentSch( m_openContext->GetCurrentFileName() );
 
        if( currentSch.GetFullName() != aSchFileName )
        {
            if( aError )
                *aError = wxS( "Requested document does not match the open document" );
 
            return false;
        }
    }
 
    closeCurrentDocument( aServer );
    return true;
}