Aegisub/src/main.cpp

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// Copyright (c) 2005, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Aegisub Project http://www.aegisub.org/
/// @file main.cpp
/// @brief Main entry point, as well as crash handling
/// @ingroup main
///
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#include "main.h"
#include "command/command.h"
#include "include/aegisub/hotkey.h"
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#include "ass_file.h"
#include "auto4_base.h"
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#include "auto4_lua_factory.h"
#include "compat.h"
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#include "crash_writer.h"
#include "dialog_version_check.h"
#include "export_fixstyle.h"
#include "export_framerate.h"
#include "frame_main.h"
#include "include/aegisub/context.h"
#include "libresrc/libresrc.h"
#include "options.h"
#include "subs_controller.h"
#include "subtitle_format.h"
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#include "subtitles_provider_libass.h"
#include "video_context.h"
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#include "version.h"
#include "utils.h"
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#include <libaegisub/dispatch.h>
#include <libaegisub/fs.h>
#include <libaegisub/hotkey.h>
#include <libaegisub/io.h>
#include <libaegisub/log.h>
#include <libaegisub/make_unique.h>
#include <libaegisub/path.h>
#include <libaegisub/util.h>
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#include <boost/format.hpp>
#include <boost/interprocess/streams/bufferstream.hpp>
#include <boost/locale.hpp>
#include <locale>
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#include <wx/clipbrd.h>
#include <wx/msgdlg.h>
#include <wx/stackwalk.h>
#include <wx/utils.h>
namespace config {
agi::Options *opt = nullptr;
agi::MRUManager *mru = nullptr;
agi::Path *path = nullptr;
}
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IMPLEMENT_APP(AegisubApp)
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static const char *LastStartupState = nullptr;
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#ifdef WITH_STARTUPLOG
#define StartupLog(a) MessageBox(0, L ## a, L"Aegisub startup log", 0)
#else
#define StartupLog(a) LastStartupState = a
#endif
void AegisubApp::OnAssertFailure(const wxChar *file, int line, const wxChar *func, const wxChar *cond, const wxChar *msg) {
LOG_A("wx/assert") << file << ":" << line << ":" << func << "() " << cond << ": " << msg;
wxApp::OnAssertFailure(file, line, func, cond, msg);
}
AegisubApp::AegisubApp() {
// http://trac.wxwidgets.org/ticket/14302
wxSetEnv("UBUNTU_MENUPROXY", "0");
}
wxDEFINE_EVENT(EVT_CALL_THUNK, wxThreadEvent);
/// Message displayed when an exception has occurred.
static wxString exception_message = "Oops, Aegisub has crashed!\n\nAn attempt has been made to save a copy of your file to:\n\n%s\n\nAegisub will now close.";
/// @brief Gets called when application starts.
/// @return bool
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bool AegisubApp::OnInit() {
// App name (yeah, this is a little weird to get rid of an odd warning)
#if defined(__WXMSW__) || defined(__WXMAC__)
SetAppName("Aegisub");
#else
SetAppName("aegisub");
#endif
// The logger isn't created on demand on background threads, so force it to
// be created now
(void)wxLog::GetActiveTarget();
{
// Try to get the UTF-8 version of the current locale
auto locale = boost::locale::generator().generate("");
// Check if we actually got a UTF-8 locale
using codecvt = std::codecvt<wchar_t, char, std::mbstate_t>;
int result = std::codecvt_base::error;
if (std::has_facet<codecvt>(locale)) {
wchar_t test[] = L"\xFFFE";
char buff[8];
auto mb = std::mbstate_t();
const wchar_t* from_next;
char* to_next;
result = std::use_facet<codecvt>(locale).out(mb,
test, std::end(test), from_next,
buff, std::end(buff), to_next);
}
// If we didn't get a UTF-8 locale, force it to a known one
if (result != std::codecvt_base::ok)
locale = boost::locale::generator().generate("en_US.UTF-8");
std::locale::global(locale);
}
boost::filesystem::path::imbue(std::locale());
// Pointless `this` capture required due to http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51494
agi::dispatch::Init([this](agi::dispatch::Thunk f) {
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auto evt = new wxThreadEvent(EVT_CALL_THUNK);
evt->SetPayload(f);
wxTheApp->QueueEvent(evt);
});
wxTheApp->Bind(EVT_CALL_THUNK, [](wxThreadEvent &evt) {
evt.GetPayload<std::function<void()>>()();
});
config::path = new agi::Path;
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crash_writer::Initialize(config::path->Decode("?user"));
agi::log::log = new agi::log::LogSink;
#ifdef _DEBUG
agi::log::log->Subscribe(agi::make_unique<agi::log::EmitSTDOUT>());
#endif
// Set config file
StartupLog("Load local configuration");
#ifdef __WXMSW__
// Try loading configuration from the install dir if one exists there
try {
auto conf_local(config::path->Decode("?data/config.json"));
std::unique_ptr<std::istream> localConfig(agi::io::Open(conf_local));
config::opt = new agi::Options(conf_local, GET_DEFAULT_CONFIG(default_config));
// Local config, make ?user mean ?data so all user settings are placed in install dir
config::path->SetToken("?user", config::path->Decode("?data"));
config::path->SetToken("?local", config::path->Decode("?data"));
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crash_writer::Initialize(config::path->Decode("?user"));
} catch (agi::fs::FileSystemError const&) {
// File doesn't exist or we can't read it
// Might be worth displaying an error in the second case
}
#endif
StartupLog("Create log writer");
auto path_log = config::path->Decode("?user/log/");
agi::fs::CreateDirectory(path_log);
agi::log::log->Subscribe(agi::make_unique<agi::log::JsonEmitter>(path_log));
CleanCache(path_log, "*.json", 10, 100);
StartupLog("Load user configuration");
try {
if (!config::opt)
config::opt = new agi::Options(config::path->Decode("?user/config.json"), GET_DEFAULT_CONFIG(default_config));
boost::interprocess::ibufferstream stream((const char *)default_config, sizeof(default_config));
config::opt->ConfigNext(stream);
} catch (agi::Exception& e) {
LOG_E("config/init") << "Caught exception: " << e.GetName() << " -> " << e.GetMessage();
}
try {
config::opt->ConfigUser();
}
catch (agi::Exception const& err) {
wxMessageBox("Configuration file is invalid. Error reported:\n" + to_wx(err.GetMessage()), "Error");
}
// Init commands.
cmd::init_builtin_commands();
// Init hotkeys
hotkey::init();
StartupLog("Load MRU");
config::mru = new agi::MRUManager(config::path->Decode("?user/mru.json"), GET_DEFAULT_CONFIG(default_mru), config::opt);
agi::util::SetThreadName("AegiMain");
StartupLog("Inside OnInit");
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try {
// Initialize randomizer
StartupLog("Initialize random generator");
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srand(time(nullptr));
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// locale for loading options
StartupLog("Set initial locale");
setlocale(LC_NUMERIC, "C");
setlocale(LC_CTYPE, "C");
// Crash handling
#if (!defined(_DEBUG) || defined(WITH_EXCEPTIONS)) && (wxUSE_ON_FATAL_EXCEPTION+0)
StartupLog("Install exception handler");
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wxHandleFatalExceptions(true);
#endif
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StartupLog("Store options back");
OPT_SET("Version/Last Version")->SetInt(GetSVNRevision());
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StartupLog("Initialize final locale");
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// Set locale
wxString lang = to_wx(OPT_GET("App/Language")->GetString());
if (!lang) {
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lang = locale.PickLanguage();
OPT_SET("App/Language")->SetString(from_wx(lang));
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}
locale.Init(lang);
#ifdef __APPLE__
// When run from an app bundle, LC_CTYPE defaults to "C", which breaks on
// anything involving unicode and in some cases number formatting.
// The right thing to do here would be to query CoreFoundation for the user's
// locale and add .UTF-8 to that, but :effort:
setlocale(LC_CTYPE, "en_US.UTF-8");
#endif
exception_message = _("Oops, Aegisub has crashed!\n\nAn attempt has been made to save a copy of your file to:\n\n%s\n\nAegisub will now close.");
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// Load plugins
Automation4::ScriptFactory::Register(agi::make_unique<Automation4::LuaScriptFactory>());
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libass::CacheFonts();
// Load Automation scripts
StartupLog("Load global Automation scripts");
global_scripts = new Automation4::AutoloadScriptManager(OPT_GET("Path/Automation/Autoload")->GetString());
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// Load export filters
StartupLog("Register export filters");
AssExportFilterChain::Register(agi::make_unique<AssFixStylesFilter>());
AssExportFilterChain::Register(agi::make_unique<AssTransformFramerateFilter>());
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StartupLog("Install PNG handler");
wxImage::AddHandler(new wxPNGHandler);
// Open main frame
StartupLog("Create main window");
frame = new FrameMain;
SetTopWindow(frame);
// Version checker
StartupLog("Possibly perform automatic updates check");
if (OPT_GET("App/First Start")->GetBool()) {
OPT_SET("App/First Start")->SetBool(false);
#ifdef WITH_UPDATE_CHECKER
int result = wxMessageBox(_("Do you want Aegisub to check for updates whenever it starts? You can still do it manually via the Help menu."),_("Check for updates?"), wxYES_NO | wxCENTER);
OPT_SET("App/Auto/Check For Updates")->SetBool(result == wxYES);
try {
config::opt->Flush();
}
catch (agi::fs::FileSystemError const& e) {
wxMessageBox(to_wx(e.GetMessage()), "Error saving config file", wxOK | wxICON_ERROR | wxCENTER);
}
#endif
}
#ifdef WITH_UPDATE_CHECKER
PerformVersionCheck(false);
#endif
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// Get parameter subs
StartupLog("Parse command line");
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wxArrayString subs;
for (int i = 1; i < argc; ++i)
subs.push_back(argv[i]);
if (!subs.empty())
frame->LoadList(subs);
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}
catch (const char *err) {
wxMessageBox(err,"Fatal error while initializing");
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return false;
}
catch (wxString const& err) {
wxMessageBox(err, "Fatal error while initializing");
return false;
}
catch (agi::Exception const& e) {
wxMessageBox(to_wx(e.GetMessage()),"Fatal error while initializing");
return false;
}
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#ifndef _DEBUG
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catch (...) {
wxMessageBox("Unhandled exception","Fatal error while initializing");
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return false;
}
#endif
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StartupLog("Clean old autosave files");
CleanCache(config::path->Decode(OPT_GET("Path/Auto/Save")->GetString()), "*.AUTOSAVE.ass", 100, 1000);
StartupLog("Initialization complete");
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return true;
}
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int AegisubApp::OnExit() {
if (frame)
delete frame;
if (wxTheClipboard->Open()) {
wxTheClipboard->Flush();
wxTheClipboard->Close();
}
delete config::opt;
delete config::mru;
hotkey::clear();
cmd::clear();
delete global_scripts;
AssExportFilterChain::Clear();
// Keep this last!
delete agi::log::log;
crash_writer::Cleanup();
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return wxApp::OnExit();
}
static void UnhandledExeception(bool stackWalk, agi::Context *c) {
#if (!defined(_DEBUG) || defined(WITH_EXCEPTIONS)) && (wxUSE_ON_FATAL_EXCEPTION+0)
if (c->ass && c->subsController) {
auto path = config::path->Decode("?user/recovered");
agi::fs::CreateDirectory(path);
auto filename = c->subsController->Filename().stem();
filename.replace_extension(str(boost::format("%s.ass") % agi::util::strftime("%Y-%m-%d-%H-%M-%S")));
path /= filename;
c->subsController->Save(path);
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if (stackWalk)
crash_writer::Write();
// Inform user of crash.
wxMessageBox(wxString::Format(exception_message, path.wstring()), _("Program error"), wxOK | wxICON_ERROR | wxCENTER, nullptr);
}
else if (LastStartupState) {
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if (stackWalk)
crash_writer::Write();
wxMessageBox(wxString::Format("Aegisub has crashed while starting up!\n\nThe last startup step attempted was: %s.", LastStartupState), _("Program error"), wxOK | wxICON_ERROR | wxCENTER);
}
#endif
}
void AegisubApp::OnUnhandledException() {
UnhandledExeception(false, frame ? frame->context.get() : nullptr);
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}
void AegisubApp::OnFatalException() {
UnhandledExeception(true, frame ? frame->context.get() : nullptr);
}
#define SHOW_EXCEPTION(str) \
wxMessageBox(wxString::Format(_("An unexpected error has occurred. Please save your work and restart Aegisub.\n\nError Message: %s"), str), \
"Exception in event handler", wxOK | wxICON_ERROR | wxCENTER | wxSTAY_ON_TOP)
void AegisubApp::HandleEvent(wxEvtHandler *handler, wxEventFunction func, wxEvent& event) const {
try {
wxApp::HandleEvent(handler, func, event);
}
catch (...) {
const_cast<AegisubApp *>(this)->OnExceptionInMainLoop();
}
}
bool AegisubApp::OnExceptionInMainLoop() {
try {
throw;
}
catch (const agi::Exception &e) {
SHOW_EXCEPTION(to_wx(e.GetChainedMessage()));
}
catch (const std::exception &e) {
SHOW_EXCEPTION(to_wx(e.what()));
}
catch (const char *e) {
SHOW_EXCEPTION(to_wx(e));
}
catch (const wxString &e) {
SHOW_EXCEPTION(e);
}
catch (...) {
SHOW_EXCEPTION("Unknown error");
}
return true;
}
#undef SHOW_EXCEPTION
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int AegisubApp::OnRun() {
std::string error;
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try {
if (m_exitOnFrameDelete == Later) m_exitOnFrameDelete = Yes;
return MainLoop();
}
catch (const wxString &err) { error = from_wx(err); }
catch (const char *err) { error = err; }
catch (const std::exception &e) { error = std::string("std::exception: ") + e.what(); }
catch (const agi::Exception &e) { error = "agi::exception: " + e.GetChainedMessage(); }
catch (...) { error = "Program terminated in error."; }
// Report errors
if (!error.empty()) {
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crash_writer::Write(error);
OnUnhandledException();
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}
ExitMainLoop();
return 1;
}
void AegisubApp::MacOpenFile(const wxString &filename) {
if (frame && !filename.empty())
frame->context->subsController->Load(agi::fs::path(filename));
}