Initial revision

1 files changed, 644 insertions, 0 deletions

diff --git a/library/global.cpp b/library/global.cpp
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+/**********************************************************************
+** Copyright (C) 2000 Trolltech AS.  All rights reserved.
+**
+** This file is part of Qtopia Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+#include <qpe/qpedebug.h>
+#include <qpe/global.h>
+#include <qpe/qdawg.h>
+#include <qpe/qpeapplication.h>
+#include <qpe/resource.h>
+#include <qpe/storage.h>
+#include <qpe/applnk.h>
+#if defined(Q_WS_QWS) && !defined(QT_NO_COP)
+#include "qpe/qcopenvelope_qws.h"
+#endif
+
+#include <qfile.h>
+#include <qlabel.h>
+#include <qtimer.h>
+#include <qmap.h>
+#include <qdict.h>
+#include <qdir.h>
+#include <qmessagebox.h>
+#include <qregexp.h>
+
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <qwindowsystem_qws.h> // for qwsServer
+#include <qdatetime.h>
+
+//#include "quickexec_p.h"
+
+class Emitter : public QObject {
+    Q_OBJECT
+public:
+    Emitter( QWidget* receiver, const QString& document )
+    {
+	connect(this, SIGNAL(setDocument(const QString&)),
+	    receiver, SLOT(setDocument(const QString&)));
+	emit setDocument(document);
+	disconnect(this, SIGNAL(setDocument(const QString&)),
+	       receiver, SLOT(setDocument(const QString&)));
+    }
+
+signals:
+    void setDocument(const QString&);
+};
+
+
+class StartingAppList : public QObject {
+    Q_OBJECT
+public:
+    static void add( const QString& name );
+    static bool isStarting( const QString name );
+private slots:
+    void handleNewChannel( const QString &);
+private:
+    StartingAppList( QObject *parent=0, const char* name=0 ) ;
+
+    QDict<QTime> dict;
+    static StartingAppList *appl;
+};
+
+StartingAppList* StartingAppList::appl = 0;
+
+StartingAppList::StartingAppList( QObject *parent, const char* name )
+    :QObject( parent, name )
+{
+#if QT_VERSION >= 232 && !defined(QT_NO_COP)
+    connect( qwsServer, SIGNAL( newChannel(const QString&)),
+	     this, SLOT( handleNewChannel(const QString&)) );
+    dict.setAutoDelete( TRUE );
+#endif
+}
+
+void StartingAppList::add( const QString& name )
+{
+#if QT_VERSION >= 232  && !defined(QT_NO_COP)
+    if ( !appl )
+	appl = new StartingAppList;
+    QTime *t = new QTime;
+    t->start();
+    appl->dict.insert( "QPE/Application/" + name, t );
+#endif
+}
+
+bool StartingAppList::isStarting( const QString name )
+{
+#if QT_VERSION >= 232  && !defined(QT_NO_COP)
+    if ( appl ) {
+	QTime *t  = appl->dict.find( "QPE/Application/" + name );
+	if ( !t )
+	    return FALSE;
+	if ( t->elapsed() > 10000 ) {
+	    // timeout in case of crash or something
+	    appl->dict.remove( "QPE/Application/" + name );
+	    return FALSE;
+	}
+	return TRUE;
+    }
+#endif
+    return FALSE;
+}
+
+void StartingAppList::handleNewChannel( const QString & name )
+{
+#if QT_VERSION >= 232  && !defined(QT_NO_COP)
+    dict.remove( name );
+#endif
+}
+
+static bool docDirCreated = FALSE;
+static QDawg* fixed_dawg = 0;
+static QDict<QDawg> *named_dawg = 0;
+
+static QString qpeDir()
+{
+    QString dir = getenv("QPEDIR");
+    if ( dir.isEmpty() ) dir = "..";
+    return dir;
+}
+
+static QString dictDir()
+{
+    return qpeDir() + "/etc/dict";
+}
+
+/*!
+  \class Global global.h
+  \brief The Global class collects application-wide global functions.
+*/
+
+/*!
+  \internal
+*/
+Global::Global()
+{
+}
+
+/*!
+  Returns the unchangeable QDawg that contains general
+  words for the current locale.
+
+  \sa addedDawg()
+*/
+const QDawg& Global::fixedDawg()
+{
+    if ( !fixed_dawg ) {
+	if ( !docDirCreated )
+	    createDocDir();
+
+	fixed_dawg = new QDawg;
+	QString dawgfilename = dictDir() + "/dawg";
+	QString lang = getenv( "LANG" );
+	QString dawgfilename_lang = dawgfilename + "." + lang;
+	QString words_lang = dictDir() + "/words." + lang;
+	if ( QFile::exists(dawgfilename_lang) ||
+	     QFile::exists(words_lang) )
+	    dawgfilename = dawgfilename_lang;
+	QFile dawgfile(dawgfilename);
+
+	if ( !dawgfile.exists() ) {
+	    QString fn = dictDir() + "/words";
+	    if ( QFile::exists(words_lang) )
+		fn = words_lang;
+	    QFile in(fn);
+	    if ( in.open(IO_ReadOnly) ) {
+		fixed_dawg->createFromWords(&in);
+		dawgfile.open(IO_WriteOnly);
+		fixed_dawg->write(&dawgfile);
+		dawgfile.close();
+	    }
+	} else {
+	    fixed_dawg->readFile(dawgfilename);
+	}
+    }
+
+    return *fixed_dawg;
+}
+
+/*!
+  Returns the changeable QDawg that contains general
+  words for the current locale.
+
+  \sa fixedDawg()
+*/
+const QDawg& Global::addedDawg()
+{
+    return dawg("local");
+}
+
+/*!
+  Returns the QDawg with the given \a name.
+  This is an application-specific word list.
+
+  \a name should not contain "/".
+*/
+const QDawg& Global::dawg(const QString& name)
+{
+    createDocDir();
+    if ( !named_dawg )
+	named_dawg = new QDict<QDawg>;
+    QDawg* r = named_dawg->find(name);
+    if ( !r ) {
+	r = new QDawg;
+	named_dawg->insert(name,r);
+	QString dawgfilename = dictDir() + "/" + name + ".dawg";
+	QFile dawgfile(dawgfilename);
+	if ( dawgfile.open(IO_ReadOnly) )
+	    r->readFile(dawgfilename);
+    }
+    return *r;
+}
+
+/*!
+  Adds \a wordlist to the addedDawg().
+*/
+void Global::addWords(const QStringList& wordlist)
+{
+    addWords("local",wordlist);
+}
+
+/*!
+  Adds \a wordlist to the dawg() named \a dictname.
+*/
+void Global::addWords(const QString& dictname, const QStringList& wordlist)
+{
+    QDawg& d = (QDawg&)dawg(dictname);
+    QStringList all = d.allWords() + wordlist;
+    d.createFromWords(all);
+
+    QString dawgfilename = dictDir() + "/" + dictname + ".dawg";
+    QFile dawgfile(dawgfilename);
+    if ( dawgfile.open(IO_WriteOnly) ) {
+	d.write(&dawgfile);
+	dawgfile.close();
+    }
+
+    // #### Re-read the dawg here if we use mmap().
+
+    // #### Signal other processes to re-read.
+}
+
+
+/*!
+  Returns a full path for the application named \a appname, with the
+  given \a filename or QString::null if there was a problem creating
+  the directory tree for \a appname.  
+  If \a filename contains "/", it is the caller's responsibility to 
+  ensure those directories exist.
+*/
+QString Global::applicationFileName(const QString& appname, const QString& filename)
+{
+    QDir d;
+    QString r = getenv("HOME");
+    r += "/Applications/";
+    if ( !QFile::exists( r ) )
+	if ( d.mkdir(r) == false )
+	    return QString::null;
+    r += appname;
+    if ( !QFile::exists( r ) )
+	if ( d.mkdir(r) == false )
+	    return QString::null;
+    r += "/"; r += filename;
+    return r;
+}
+
+/*!
+  \internal
+*/
+void Global::createDocDir()
+{
+    if ( !docDirCreated ) {
+	docDirCreated = TRUE;
+	mkdir( QPEApplication::documentDir().latin1(), 0755 );
+    }
+}
+
+
+/*!
+  Displays a status \a message to the user. This generally appears
+  in the taskbar for some amount of time, then disappears.
+*/
+void Global::statusMessage(const QString& message)
+{
+#if defined(Q_WS_QWS) && !defined(QT_NO_COP)
+    QCopEnvelope e( "QPE/TaskBar", "message(QString)" );
+    e << message;
+#endif
+}
+
+/*!
+  \internal
+*/
+void Global::applyStyle()
+{
+#if defined(Q_WS_QWS) && !defined(QT_NO_COP)
+    QCopChannel::send( "QPE/System", "applyStyle()" );
+#else
+    ((QPEApplication *)qApp)->applyStyle(); // apply without needing QCop for floppy version
+#endif
+}
+
+/*!
+  \internal
+*/
+QWidget *Global::shutdown( bool )
+{
+#if defined(Q_WS_QWS) && !defined(QT_NO_COP)
+    QCopChannel::send( "QPE/System", "shutdown()" );
+#endif
+    return 0;
+}
+
+/*!
+  \internal
+*/
+QWidget *Global::restart( bool )
+{
+#if defined(Q_WS_QWS) && !defined(QT_NO_COP)
+    QCopChannel::send( "QPE/System", "restart()" );
+#endif
+    return 0;
+}
+
+/*!
+  Explicitly show the current input method.
+*/
+void Global::showInputMethod()
+{
+#if defined(Q_WS_QWS) && !defined(QT_NO_COP)
+    QCopChannel::send( "QPE/TaskBar", "showInputMethod()" );
+#endif
+}
+
+/*!
+  Explicitly hide the current input method.
+*/
+void Global::hideInputMethod()
+{
+#if defined(Q_WS_QWS) && !defined(QT_NO_COP)
+    QCopChannel::send( "QPE/TaskBar", "hideInputMethod()" );
+#endif
+}
+
+
+/*!
+  \internal
+*/
+bool Global::isBuiltinCommand( const QString &name )
+{
+    if(!builtin)
+	return FALSE; // yes, it can happen
+    for (int i = 0; builtin[i].file; i++) {
+	if ( builtin[i].file == name ) {
+	    return TRUE;
+	}
+    }
+    return FALSE;
+}
+
+Global::Command* Global::builtin=0;
+QGuardedPtr<QWidget> *Global::running=0;
+
+/*!
+  \class Global::Command
+  \brief The Global::Command class is internal.
+  \internal
+*/
+
+/*!
+  \internal
+*/
+void Global::setBuiltinCommands( Command* list )
+{
+    if ( running )
+	delete [] running;
+
+    builtin = list;
+    int count = 0;
+    if (!builtin)
+	return;
+    while ( builtin[count].file )
+	count++;
+
+    running = new QGuardedPtr<QWidget> [ count ];
+}
+
+/*!
+  \internal
+*/
+void Global::setDocument( QWidget* receiver, const QString& document )
+{
+    Emitter emitter(receiver,document);
+}
+
+/*!
+  \internal
+*/
+bool Global::terminateBuiltin( const QString& n )
+{
+    if (!builtin)
+	return FALSE;
+    for (int i = 0; builtin[i].file; i++) {
+	if ( builtin[i].file == n ) {
+	    delete running[i];
+	    return TRUE;
+	}
+    }
+    return FALSE;
+}
+
+/*!
+  \internal
+*/
+void Global::terminate( const AppLnk* app )
+{
+    //if ( terminateBuiltin(app->exec()) ) return; // maybe? haven't tried this
+
+    QCString channel = "QPE/Application/" + app->exec().utf8();
+    if ( QCopChannel::isRegistered(channel) ) {
+	QCopEnvelope e(channel, "quit()");
+    }
+}
+
+/*!
+  Low-level function to run command \a c. Not recommended.
+*/
+void Global::invoke(const QString &c) 
+{
+    // Convert the command line in to a list of arguments
+    QStringList list = QStringList::split(QRegExp("  *"),c);
+
+#if defined(Q_WS_QWS) && !defined(QT_NO_COP)
+    QString ap=list[0];
+    // see if the application is already running
+    // XXX should lock file /tmp/qcop-msg-ap 
+    if ( QCopChannel::isRegistered( ("QPE/Application/" + ap).latin1() ) ) {
+	QCopEnvelope e("QPE/System", "notBusy(QString)" );
+	e << ap;
+	return;
+    }
+    // XXX should unlock file /tmp/qcop-msg-ap 
+    //see if it is being started
+    if ( StartingAppList::isStarting( ap ) ) {
+	QCopEnvelope e("QPE/System", "notBusy(QString)" );
+	e << ap;
+	return;
+    }
+
+#endif
+
+#ifdef QT_NO_QWS_MULTIPROCESS
+    QMessageBox::warning( 0, "Error", "Could not find the application " + c, "Ok", 0, 0, 0, 1 );
+#else
+
+    QStrList slist;
+    unsigned int j;
+    for ( j = 0; j < list.count(); j++ )
+	slist.append( list[j].utf8() );
+
+    const char **args = new (const char *)[slist.count() + 1];
+    for ( j = 0; j < slist.count(); j++ )
+	args[j] = slist.at(j);
+    args[j] = NULL;
+
+#if defined(Q_WS_QWS) && !defined(QT_NO_COP)
+    // an attempt to show a wait...
+    // more logic should be used, but this will be fine for the moment...
+    QCopEnvelope ( "QPE/System", "busy()" );
+#endif
+
+#ifdef HAVE_QUICKEXEC
+    QString libexe = qpeDir()+"/binlib/lib"+args[0] + ".so";
+    qDebug("libfile = %s", libexe.latin1() );
+    if ( QFile::exists( libexe ) ) {
+	qDebug("calling quickexec %s", libexe.latin1() );
+	quickexecv( libexe.utf8().data(), (const char **)args );
+    } else 
+#endif
+    {
+	if ( !::vfork() ) {
+	    for ( int fd = 3; fd < 100; fd++ )
+		::close( fd );
+	    ::setpgid( ::getpid(), ::getppid() );
+	    // Try bindir first, so that foo/bar works too
+	    ::execv( qpeDir()+"/bin/"+args[0], (char * const *)args );
+	    ::execvp( args[0], (char * const *)args );
+	    exit( -1 );
+	}
+    }
+    StartingAppList::add( list[0] );
+#endif //QT_NO_QWS_MULTIPROCESS
+}
+
+/*!
+  Executes application identfied by \a c, passing \a document.
+
+  Note that you might be better off sending a QCop message to
+  the application's QPE/Application/<i>appname</i> channel.
+*/
+void Global::execute( const QString &c, const QString& document )
+{
+    if ( qApp->type() != QApplication::GuiServer ) {
+	// ask the server to do the work
+#if defined(Q_WS_QWS) && !defined(QT_NO_COP)
+	if ( document.isNull() ) {
+	    QCopEnvelope e( "QPE/System", "execute(QString)" );
+	    e << c;
+	} else {
+	    QCopEnvelope e( "QPE/System", "execute(QString,QString)" );
+	    e << c << document;
+	}
+#endif
+	return;
+    }
+
+    // Attempt to execute the app using a builtin class for the app first
+    // else try and find it in the bin directory
+    if (builtin) {
+	for (int i = 0; builtin[i].file; i++) {
+	    if ( builtin[i].file == c ) {
+		if ( running[i] ) {
+		    if ( !document.isNull() && builtin[i].documentary )
+			setDocument(running[i], document);
+		    running[i]->raise();
+		    running[i]->show();
+		    running[i]->setActiveWindow();
+		} else {
+		    running[i] = builtin[i].func( builtin[i].maximized );
+		}
+		QCopEnvelope e("QPE/System", "notBusy(QString)" );
+		e << c; // that was quick ;-)
+		return;
+	    }
+	}
+    }
+
+    //Global::invoke(c, document);
+
+    // Convert the command line in to a list of arguments
+    QStringList list = QStringList::split(QRegExp("  *"),c);
+
+#if defined(Q_WS_QWS) && !defined(QT_NO_COP)
+    QString ap=list[0];
+
+    qDebug("executing %s", ap.latin1() );
+    if ( ap == "suspend" ) {
+	QWSServer::sendKeyEvent( 0xffff, Qt::Key_F34, FALSE, TRUE, FALSE );	
+	return;
+    }
+
+    /* if need be, sending a qcop message will result in an invoke, see 
+       preceeding function */
+    { QCopEnvelope env( ("QPE/Application/" + ap).latin1(), "raise()" ); }
+    if ( !document.isEmpty() ) {
+	QCopEnvelope env( ("QPE/Application/" + ap).latin1(), "setDocument(QString)" );
+	env << document;
+    }
+#endif
+}
+
+/*!
+  Returns the string \a s with the characters backslash, ", and $
+  quoted by a preceeding backslash.
+*/
+QString Global::shellQuote(const QString& s)
+{
+    QString r="\"";
+    for (int i=0; i<(int)s.length(); i++) {
+	char c = s[i].latin1();
+	switch (c) {
+	    case '\\': case '"': case '$':
+		r+="\\";
+	}
+	r += s[i];
+    }
+    r += "\"";
+    return r;
+}
+
+/*!
+  Returns the string \a s with the characters backslash and "
+  quoted by a preceeding backslash.
+*/
+QString Global::stringQuote(const QString& s)
+{
+    QString r="\"";
+    for (int i=0; i<(int)s.length(); i++) {
+	char c = s[i].latin1();
+	switch (c) {
+	    case '\\': case '"':
+		r+="\\";
+	}
+	r += s[i];
+    }
+    r += "\"";
+    return r;
+}
+
+/*!
+  Finds all documents on the system's document directories which
+  match the filter \a mimefilter, and appends the resulting DocLnk
+  objects to \a folder.
+*/
+void Global::findDocuments(DocLnkSet* folder, const QString &mimefilter)
+{
+    QString homedocs = QString(getenv("HOME")) + "/Documents";
+    DocLnkSet d(homedocs,mimefilter);
+    folder->appendFrom(d);
+    StorageInfo storage;
+    const QList<FileSystem> &fs = storage.fileSystems();
+    QListIterator<FileSystem> it ( fs );
+    for ( ; it.current(); ++it ) {
+	if ( (*it)->isRemovable() ) {
+	    QString path = (*it)->path();
+	    DocLnkSet ide( path, mimefilter );
+	    folder->appendFrom(ide);
+	}
+    }
+}
+
+
+
+#include "global.moc"