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qt-creator/src/app/main.cpp
Friedemann Kleint 719c87e599 Remove setting of Qt::AA_DontCreateNativeWidgetSiblings . 
Change qtbase 72a7882cec07a9ad187c9e1772fb08f59a4b9519
avoids unnecessary creation of native siblings in Qt 5.

Task-number: QTBUG-34138
Change-Id: Ie6b847f57a40d56028c771628f31acb182179066
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
2013-10-23 08:10:19 +02:00

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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "../tools/qtcreatorcrashhandler/crashhandlersetup.h"
#include <app/app_version.h>
#include <extensionsystem/iplugin.h>
#include <extensionsystem/pluginerroroverview.h>
#include <extensionsystem/pluginmanager.h>
#include <extensionsystem/pluginspec.h>
#include <qtsingleapplication.h>
#include <utils/hostosinfo.h>
#include <QDebug>
#include <QDir>
#include <QFileInfo>
#include <QLibraryInfo>
#include <QSettings>
#include <QTextStream>
#include <QThreadPool>
#include <QTimer>
#include <QTranslator>
#include <QUrl>
#include <QVariant>
#include <QNetworkProxyFactory>
#include <QApplication>
#include <QDesktopServices>
#include <QMessageBox>
#ifdef ENABLE_QT_BREAKPAD
#include <qtsystemexceptionhandler.h>
#endif
using namespace ExtensionSystem;
enum { OptionIndent = 4, DescriptionIndent = 34 };
const char appNameC[] = "Qt Creator";
const char corePluginNameC[] = "Core";
const char fixedOptionsC[] =
" [OPTION]... [FILE]...\n"
"Options:\n"
" -help Display this help\n"
" -version Display program version\n"
" -client Attempt to connect to already running first instance\n"
" -settingspath <path> Override the default path where user settings are stored\n"
" -pid <pid> Attempt to connect to instance given by pid\n"
" -block Block until editor is closed\n"
" -pluginpath <path> Add a custom search path for plugins\n";
const char HELP_OPTION1[] = "-h";
const char HELP_OPTION2[] = "-help";
const char HELP_OPTION3[] = "/h";
const char HELP_OPTION4[] = "--help";
const char VERSION_OPTION[] = "-version";
const char CLIENT_OPTION[] = "-client";
const char SETTINGS_OPTION[] = "-settingspath";
const char TEST_OPTION[] = "-test";
const char PID_OPTION[] = "-pid";
const char BLOCK_OPTION[] = "-block";
const char PLUGINPATH_OPTION[] = "-pluginpath";
typedef QList<PluginSpec *> PluginSpecSet;
// Helpers for displaying messages. Note that there is no console on Windows.
#ifdef Q_OS_WIN
// Format as <pre> HTML
static inline void toHtml(QString &t)
{
t.replace(QLatin1Char('&'), QLatin1String("&amp;"));
t.replace(QLatin1Char('<'), QLatin1String("&lt;"));
t.replace(QLatin1Char('>'), QLatin1String("&gt;"));
t.insert(0, QLatin1String("<html><pre>"));
t.append(QLatin1String("</pre></html>"));
}
static void displayHelpText(QString t) // No console on Windows.
{
toHtml(t);
QMessageBox::information(0, QLatin1String(appNameC), t);
}
static void displayError(const QString &t) // No console on Windows.
{
QMessageBox::critical(0, QLatin1String(appNameC), t);
}
#else
static void displayHelpText(const QString &t)
{
qWarning("%s", qPrintable(t));
}
static void displayError(const QString &t)
{
qCritical("%s", qPrintable(t));
}
#endif
static void printVersion(const PluginSpec *coreplugin)
{
QString version;
QTextStream str(&version);
str << '\n' << appNameC << ' ' << coreplugin->version()<< " based on Qt " << qVersion() << "\n\n";
PluginManager::formatPluginVersions(str);
str << '\n' << coreplugin->copyright() << '\n';
displayHelpText(version);
}
static void printHelp(const QString &a0)
{
QString help;
QTextStream str(&help);
str << "Usage: " << a0 << fixedOptionsC;
PluginManager::formatOptions(str, OptionIndent, DescriptionIndent);
PluginManager::formatPluginOptions(str, OptionIndent, DescriptionIndent);
displayHelpText(help);
}
static inline QString msgCoreLoadFailure(const QString &why)
{
return QCoreApplication::translate("Application", "Failed to load core: %1").arg(why);
}
static inline int askMsgSendFailed()
{
return QMessageBox::question(0, QApplication::translate("Application","Could not send message"),
QCoreApplication::translate("Application", "Unable to send command line arguments to the already running instance. "
"It appears to be not responding. Do you want to start a new instance of Creator?"),
QMessageBox::Yes | QMessageBox::No | QMessageBox::Retry,
QMessageBox::Retry);
}
// taken from utils/fileutils.cpp. We can not use utils here since that depends app_version.h.
static bool copyRecursively(const QString &srcFilePath,
const QString &tgtFilePath)
{
QFileInfo srcFileInfo(srcFilePath);
if (srcFileInfo.isDir()) {
QDir targetDir(tgtFilePath);
targetDir.cdUp();
if (!targetDir.mkdir(QFileInfo(tgtFilePath).fileName()))
return false;
QDir sourceDir(srcFilePath);
QStringList fileNames = sourceDir.entryList(QDir::Files | QDir::Dirs | QDir::NoDotAndDotDot | QDir::Hidden | QDir::System);
foreach (const QString &fileName, fileNames) {
const QString newSrcFilePath
= srcFilePath + QLatin1Char('/') + fileName;
const QString newTgtFilePath
= tgtFilePath + QLatin1Char('/') + fileName;
if (!copyRecursively(newSrcFilePath, newTgtFilePath))
return false;
}
} else {
if (!QFile::copy(srcFilePath, tgtFilePath))
return false;
}
return true;
}
static inline QStringList getPluginPaths()
{
QStringList rc;
// Figure out root: Up one from 'bin'
QDir rootDir = QApplication::applicationDirPath();
rootDir.cdUp();
const QString rootDirPath = rootDir.canonicalPath();
#if !defined(Q_OS_MAC)
// 1) "plugins" (Win/Linux)
QString pluginPath = rootDirPath;
pluginPath += QLatin1Char('/');
pluginPath += QLatin1String(IDE_LIBRARY_BASENAME);
pluginPath += QLatin1String("/qtcreator/plugins");
rc.push_back(pluginPath);
#else
// 2) "PlugIns" (OS X)
QString pluginPath = rootDirPath;
pluginPath += QLatin1String("/PlugIns");
rc.push_back(pluginPath);
#endif
// 3) <localappdata>/plugins/<ideversion>
// where <localappdata> is e.g.
// "%LOCALAPPDATA%\QtProject\qtcreator" on Windows Vista and later
// "$XDG_DATA_HOME/data/QtProject/qtcreator" or "~/.local/share/data/QtProject/qtcreator" on Linux
// "~/Library/Application Support/QtProject/Qt Creator" on Mac
pluginPath = QDesktopServices::storageLocation(QDesktopServices::DataLocation);
pluginPath += QLatin1Char('/')
+ QLatin1String(Core::Constants::IDE_SETTINGSVARIANT_STR)
+ QLatin1Char('/');
#if !defined(Q_OS_MAC)
pluginPath += QLatin1String("qtcreator");
#else
pluginPath += QLatin1String("Qt Creator");
#endif
pluginPath += QLatin1String("/plugins/");
pluginPath += QLatin1String(Core::Constants::IDE_VERSION_LONG);
rc.push_back(pluginPath);
return rc;
}
static QSettings *createUserSettings()
{
return new QSettings(QSettings::IniFormat, QSettings::UserScope,
QLatin1String(Core::Constants::IDE_SETTINGSVARIANT_STR),
QLatin1String("QtCreator"));
}
static inline QSettings *userSettings()
{
QSettings *settings = createUserSettings();
const QString fromVariant = QLatin1String(Core::Constants::IDE_COPY_SETTINGS_FROM_VARIANT_STR);
if (fromVariant.isEmpty())
return settings;
// Copy old settings to new ones:
QFileInfo pathFi = QFileInfo(settings->fileName());
if (pathFi.exists()) // already copied.
return settings;
QDir destDir = pathFi.absolutePath();
if (!destDir.exists())
destDir.mkpath(pathFi.absolutePath());
QDir srcDir = destDir;
srcDir.cdUp();
if (!srcDir.cd(fromVariant))
return settings;
if (srcDir == destDir) // Nothing to copy and no settings yet
return settings;
QStringList entries = srcDir.entryList();
foreach (const QString &file, entries) {
const QString lowerFile = file.toLower();
if (lowerFile.startsWith(QLatin1String("profiles.xml"))
|| lowerFile.startsWith(QLatin1String("toolchains.xml"))
|| lowerFile.startsWith(QLatin1String("qtversion.xml"))
|| lowerFile.startsWith(QLatin1String("devices.xml"))
|| lowerFile.startsWith(QLatin1String("debuggers.xml"))
|| lowerFile.startsWith(QLatin1String("qtcreator.")))
QFile::copy(srcDir.absoluteFilePath(file), destDir.absoluteFilePath(file));
if (file == QLatin1String("qtcreator"))
copyRecursively(srcDir.absoluteFilePath(file), destDir.absoluteFilePath(file));
}
// Make sure to use the copied settings:
delete settings;
return createUserSettings();
}
#ifdef Q_OS_MAC
# define SHARE_PATH "/../Resources"
#else
# define SHARE_PATH "/../share/qtcreator"
#endif
int main(int argc, char **argv)
{
#ifdef Q_OS_MAC
// increase the number of file that can be opened in Qt Creator.
struct rlimit rl;
getrlimit(RLIMIT_NOFILE, &rl);
rl.rlim_cur = qMin((rlim_t)OPEN_MAX, rl.rlim_max);
setrlimit(RLIMIT_NOFILE, &rl);
#endif
#if defined(Q_OS_UNIX) && !defined(Q_OS_MAC)
// QML is unusable with the xlib backend
QApplication::setGraphicsSystem(QLatin1String("raster"));
#endif
SharedTools::QtSingleApplication app((QLatin1String(appNameC)), argc, argv);
const int threadCount = QThreadPool::globalInstance()->maxThreadCount();
QThreadPool::globalInstance()->setMaxThreadCount(qMax(4, 2 * threadCount));
setupCrashHandler(); // Display a backtrace once a serious signal is delivered.
#ifdef ENABLE_QT_BREAKPAD
QtSystemExceptionHandler systemExceptionHandler;
#endif
#if QT_VERSION >= 0x050100
app.setAttribute(Qt::AA_UseHighDpiPixmaps);
#endif
// Manually determine -settingspath command line option
// We can't use the regular way of the plugin manager, because that needs to parse pluginspecs
// but the settings path can influence which plugins are enabled
QString settingsPath;
QStringList customPluginPaths;
QStringList arguments = app.arguments(); // adapted arguments list is passed to plugin manager later
QMutableStringListIterator it(arguments);
bool testOptionProvided = false;
while (it.hasNext()) {
const QString &arg = it.next();
if (arg == QLatin1String(SETTINGS_OPTION)) {
it.remove();
if (it.hasNext()) {
settingsPath = QDir::fromNativeSeparators(it.next());
it.remove();
}
} else if (arg == QLatin1String(PLUGINPATH_OPTION)) {
it.remove();
if (it.hasNext()) {
customPluginPaths << QDir::fromNativeSeparators(it.next());
it.remove();
}
} else if (arg == QLatin1String(TEST_OPTION)) {
testOptionProvided = true;
}
}
if (settingsPath.isEmpty() && testOptionProvided) {
settingsPath = QDir::tempPath() + QString::fromLatin1("/qtc-%1-test-settings")
.arg(QLatin1String(Core::Constants::IDE_VERSION_LONG));
settingsPath = QDir::cleanPath(settingsPath);
}
if (!settingsPath.isEmpty())
QSettings::setPath(QSettings::IniFormat, QSettings::UserScope, settingsPath);
// Must be done before any QSettings class is created
QSettings::setPath(QSettings::IniFormat, QSettings::SystemScope,
QCoreApplication::applicationDirPath() + QLatin1String(SHARE_PATH));
QSettings::setDefaultFormat(QSettings::IniFormat);
// plugin manager takes control of this settings object
QSettings *settings = userSettings();
QSettings *globalSettings = new QSettings(QSettings::IniFormat, QSettings::SystemScope,
QLatin1String(Core::Constants::IDE_SETTINGSVARIANT_STR),
QLatin1String("QtCreator"));
PluginManager pluginManager;
PluginManager::setFileExtension(QLatin1String("pluginspec"));
PluginManager::setGlobalSettings(globalSettings);
PluginManager::setSettings(settings);
QTranslator translator;
QTranslator qtTranslator;
QStringList uiLanguages;
// uiLanguages crashes on Windows with 4.8.0 release builds
#if (QT_VERSION >= 0x040801) || (QT_VERSION >= 0x040800 && !defined(Q_OS_WIN))
uiLanguages = QLocale::system().uiLanguages();
#else
uiLanguages << QLocale::system().name();
#endif
QString overrideLanguage = settings->value(QLatin1String("General/OverrideLanguage")).toString();
if (!overrideLanguage.isEmpty())
uiLanguages.prepend(overrideLanguage);
const QString &creatorTrPath = QCoreApplication::applicationDirPath()
+ QLatin1String(SHARE_PATH "/translations");
foreach (QString locale, uiLanguages) {
#if (QT_VERSION >= 0x050000)
locale = QLocale(locale).name();
#else
locale.replace(QLatin1Char('-'), QLatin1Char('_')); // work around QTBUG-25973
#endif
if (translator.load(QLatin1String("qtcreator_") + locale, creatorTrPath)) {
const QString &qtTrPath = QLibraryInfo::location(QLibraryInfo::TranslationsPath);
const QString &qtTrFile = QLatin1String("qt_") + locale;
// Binary installer puts Qt tr files into creatorTrPath
if (qtTranslator.load(qtTrFile, qtTrPath) || qtTranslator.load(qtTrFile, creatorTrPath)) {
app.installTranslator(&translator);
app.installTranslator(&qtTranslator);
app.setProperty("qtc_locale", locale);
break;
}
translator.load(QString()); // unload()
} else if (locale == QLatin1String("C") /* overrideLanguage == "English" */) {
// use built-in
break;
} else if (locale.startsWith(QLatin1String("en")) /* "English" is built-in */) {
// use built-in
break;
}
}
// Make sure we honor the system's proxy settings
#if defined(Q_OS_UNIX)
QUrl proxyUrl(QString::fromLatin1(qgetenv("http_proxy")));
if (proxyUrl.isValid()) {
QNetworkProxy proxy(QNetworkProxy::HttpProxy, proxyUrl.host(),
proxyUrl.port(), proxyUrl.userName(), proxyUrl.password());
QNetworkProxy::setApplicationProxy(proxy);
# if defined(Q_OS_MAC) // unix and mac
} else {
QNetworkProxyFactory::setUseSystemConfiguration(true);
# endif
}
#else // windows
QNetworkProxyFactory::setUseSystemConfiguration(true);
#endif
// Load
const QStringList pluginPaths = getPluginPaths() + customPluginPaths;
PluginManager::setPluginPaths(pluginPaths);
QMap<QString, QString> foundAppOptions;
if (arguments.size() > 1) {
QMap<QString, bool> appOptions;
appOptions.insert(QLatin1String(HELP_OPTION1), false);
appOptions.insert(QLatin1String(HELP_OPTION2), false);
appOptions.insert(QLatin1String(HELP_OPTION3), false);
appOptions.insert(QLatin1String(HELP_OPTION4), false);
appOptions.insert(QLatin1String(VERSION_OPTION), false);
appOptions.insert(QLatin1String(CLIENT_OPTION), false);
appOptions.insert(QLatin1String(PID_OPTION), true);
appOptions.insert(QLatin1String(BLOCK_OPTION), false);
QString errorMessage;
if (!PluginManager::parseOptions(arguments, appOptions, &foundAppOptions, &errorMessage)) {
displayError(errorMessage);
printHelp(QFileInfo(app.applicationFilePath()).baseName());
return -1;
}
}
const PluginSpecSet plugins = PluginManager::plugins();
PluginSpec *coreplugin = 0;
foreach (PluginSpec *spec, plugins) {
if (spec->name() == QLatin1String(corePluginNameC)) {
coreplugin = spec;
break;
}
}
if (!coreplugin) {
QString nativePaths = QDir::toNativeSeparators(pluginPaths.join(QLatin1String(",")));
const QString reason = QCoreApplication::translate("Application", "Could not find 'Core.pluginspec' in %1").arg(nativePaths);
displayError(msgCoreLoadFailure(reason));
return 1;
}
if (coreplugin->hasError()) {
displayError(msgCoreLoadFailure(coreplugin->errorString()));
return 1;
}
if (foundAppOptions.contains(QLatin1String(VERSION_OPTION))) {
printVersion(coreplugin);
return 0;
}
if (foundAppOptions.contains(QLatin1String(HELP_OPTION1))
|| foundAppOptions.contains(QLatin1String(HELP_OPTION2))
|| foundAppOptions.contains(QLatin1String(HELP_OPTION3))
|| foundAppOptions.contains(QLatin1String(HELP_OPTION4))) {
printHelp(QFileInfo(app.applicationFilePath()).baseName());
return 0;
}
qint64 pid = -1;
if (foundAppOptions.contains(QLatin1String(PID_OPTION))) {
QString pidString = foundAppOptions.value(QLatin1String(PID_OPTION));
bool pidOk;
qint64 tmpPid = pidString.toInt(&pidOk);
if (pidOk)
pid = tmpPid;
}
bool isBlock = foundAppOptions.contains(QLatin1String(BLOCK_OPTION));
if (app.isRunning() && (pid != -1 || isBlock
|| foundAppOptions.contains(QLatin1String(CLIENT_OPTION)))) {
app.setBlock(isBlock);
if (app.sendMessage(PluginManager::serializedArguments(), 5000 /*timeout*/, pid))
return 0;
// Message could not be send, maybe it was in the process of quitting
if (app.isRunning(pid)) {
// Nah app is still running, ask the user
int button = askMsgSendFailed();
while (button == QMessageBox::Retry) {
if (app.sendMessage(PluginManager::serializedArguments(), 5000 /*timeout*/, pid))
return 0;
if (!app.isRunning(pid)) // App quit while we were trying so start a new creator
button = QMessageBox::Yes;
else
button = askMsgSendFailed();
}
if (button == QMessageBox::No)
return -1;
}
}
PluginManager::loadPlugins();
if (coreplugin->hasError()) {
displayError(msgCoreLoadFailure(coreplugin->errorString()));
return 1;
}
if (PluginManager::hasError()) {
PluginErrorOverview errorOverview;
errorOverview.exec();
}
// Set up remote arguments.
QObject::connect(&app, SIGNAL(messageReceived(QString,QObject*)),
&pluginManager, SLOT(remoteArguments(QString,QObject*)));
QObject::connect(&app, SIGNAL(fileOpenRequest(QString)), coreplugin->plugin(),
SLOT(fileOpenRequest(QString)));
// quit when last window (relevant window, see WA_QuitOnClose) is closed
// this should actually be the default, but doesn't work in Qt 5
// QTBUG-31569
QObject::connect(&app, SIGNAL(lastWindowClosed()), &app, SLOT(quit()));
// shutdown plugin manager on the exit
QObject::connect(&app, SIGNAL(aboutToQuit()), &pluginManager, SLOT(shutdown()));
const int r = app.exec();
cleanupCrashHandler();
return r;
}
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