added filedialog interface, fixed plugin paths

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@38 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 297 insertions, 0 deletions

diff --git a/src/filedialog.cpp b/src/filedialog.cpp
new file mode 100644
index 000000000..744f4726b
--- /dev/null
+++ b/src/filedialog.cpp
@@ -0,0 +1,297 @@
+#include "filedialog.h"
+
+#include <QSettings>
+
+
+#include <QApplication>
+#include <QPluginLoader>
+
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+
+#include "playlistmodel.h"
+
+FileDialog* FileDialog::_instance = 0;
+
+QMap<QString,FileDialogFactory*> FileDialog::factories = QMap<QString,FileDialogFactory*>();
+
+FileDialog::FileDialog() : QObject(), m_initialized(false)
+{
+}
+
+
+bool FileDialog::isModal()
+{
+    return instance()->modal();
+}
+
+void FileDialog::init(QObject* o)
+{
+    if(!m_initialized && !instance()->modal())
+    {
+        PlayListModel* model = NULL;
+        if( ( model = qobject_cast<PlayListModel*>(o)) )
+        {
+            connect(this,SIGNAL(filesAdded(const QStringList&)),model,SLOT(addFileList(const QStringList&)));
+            m_initialized = true;
+        }
+    }
+}
+
+
+
+QString FileDialog::getExistingDirectory( QWidget * parent, const QString & caption, const QString & dir,bool def)
+{
+    QString s;
+    if(def)
+        s = defaultInstance()->existingDirectory(parent,caption,dir);
+    else
+        s = instance()->existingDirectory(parent,caption,dir);
+    delete _instance;
+    _instance = 0;
+    return s;
+}
+
+QString FileDialog::getOpenFileName(QWidget * parent,
+                const QString & caption,
+                const QString & dir,
+                const QString & filter,
+                QString * selectedFilter,bool def)
+{
+    QString s;
+    if(def)
+        s = defaultInstance()->openFileName(parent,caption,dir,filter,selectedFilter);
+    else
+        s = instance()->openFileName(parent,caption,dir,filter,selectedFilter);
+    delete _instance;
+    _instance = 0;
+    return s;
+}
+
+QStringList FileDialog::getOpenFileNames(QWidget * parent, const QString & caption , const QString & dir ,
+                const QString & filter, QString * selectedFilter,bool def)
+{
+    QStringList sl;
+    if(def)
+        sl = defaultInstance()->openFileNames(parent,caption ,dir ,filter, selectedFilter);
+    else
+         sl =  instance()->openFileNames(parent,caption,dir,filter,selectedFilter);
+    delete _instance;
+    _instance = 0;
+    return sl;
+}
+
+QString FileDialog::getSaveFileName ( QWidget * parent, const QString & caption,
+        const QString & dir, const QString & filter, QString * selectedFilter,bool def)
+{
+    QString s;
+    if(def)
+        s = defaultInstance()->saveFileName(parent,caption,dir,filter,selectedFilter);
+    else
+         s =  instance()->saveFileName(parent,caption,dir,filter,selectedFilter);
+    delete _instance;
+    _instance = 0;
+    return s;
+}
+
+
+QString FileDialog::existingDirectory(QWidget *, const QString &, const QString &)
+{
+	return QString();
+}
+
+QString FileDialog::openFileName(QWidget *, const QString &, const QString &, const QString &, QString *)
+{
+	return QString();
+}
+
+QStringList FileDialog::openFileNames(QWidget *, const QString &, const QString &, const QString &, QString *)
+{
+	return QStringList();
+}
+
+QString FileDialog::saveFileName(QWidget *, const QString &, const QString &, const QString &, QString *)
+{
+	return QString();
+}
+
+
+void FileDialog::registerBuiltinFactories()
+{
+    registerFactory(new QtFileDialogFactory());
+    //registerFactory(new QmmpFileDialogFactory());
+}
+
+void FileDialog::registerExternalFactories()
+{
+    QDir pluginsDir (QDir::homePath()+"/.qmmp/plugins/FileDialogs");
+
+    foreach (QString fileName, pluginsDir.entryList(QDir::Files))
+    {
+        //qWarning("file dialog path: %s",qPrintable(fileName));
+        QPluginLoader loader(pluginsDir.absoluteFilePath(fileName));
+        QObject *plugin = loader.instance();
+        if (loader.isLoaded())
+            qDebug("FileDialog: plugin loaded - %s", qPrintable(fileName));
+        else
+            qDebug("FileDialog: %s",qPrintable(loader.errorString()));
+
+        FileDialogFactory *fct = 0;
+        if (plugin)
+            fct = qobject_cast<FileDialogFactory *>(plugin);
+
+        if (fct)
+            if (!registerFactory(fct))
+                qDebug("Warning: Plugin with name %s is already registered...",
+                       qPrintable(fct->name()));
+    }
+}
+
+bool FileDialog::registerFactory(FileDialogFactory *f)
+{
+    QString name = f->name();
+    if (!factories.contains(name))
+    {
+        factories.insert(name,f);
+        return true;
+    }
+    return false;
+}
+
+QString FileDialog::m_current_factory = QString();
+
+FileDialog* FileDialog::instance()
+{
+    //qWarning("INSTANCE");
+    if(_instance && _instance->modal())
+    {
+        delete _instance;
+        _instance = 0;
+    }
+
+    if(factories.isEmpty())
+    {
+        registerBuiltinFactories();
+        registerExternalFactories();
+    }
+
+    QSettings settings ( QDir::homePath() +"/.qmmp/qmmprc", QSettings::IniFormat );
+    QString f_dialogName =
+        settings.value("FileDialog",QtFileDialogFactory::QtFileDialogFactoryName).toString();
+
+    QStringList names = factories.keys();
+
+    if(m_current_factory != f_dialogName || !_instance)
+    {
+        if(_instance)
+            delete _instance;
+
+        qWarning("%s\t%s",qPrintable(m_current_factory),qPrintable(f_dialogName));
+        foreach(QString name,names)
+        {
+                if(name == f_dialogName)
+                {
+                    _instance = factories[name]->create();
+                    m_current_factory = f_dialogName;
+                }
+        }
+
+        if(!_instance)
+            _instance = factories[QtFileDialogFactory::QtFileDialogFactoryName]->create();
+    }
+    else if(!_instance->modal())
+            //return _instance;
+            _instance->raise();
+
+    return _instance;
+
+}
+
+FileDialog* FileDialog::defaultInstance()
+{
+    if(_instance)
+    {
+        delete _instance;
+        _instance = 0;
+    }
+
+    if(factories.isEmpty())
+    {
+        registerBuiltinFactories();
+        registerExternalFactories();
+    }
+
+    _instance = factories[QtFileDialogFactory::QtFileDialogFactoryName]->create();
+
+    return _instance;
+}
+
+QStringList FileDialog::registeredFactories()
+{
+    if(factories.isEmpty())
+    {
+        registerBuiltinFactories();
+        registerExternalFactories();
+    }
+    return factories.keys();
+}
+
+
+void FileDialog::popup(QObject* o,const QString& d,Mode m,const QStringList& f)
+{
+	instance()->init(o);
+	instance()->raise(d,m,f);
+}
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+
+
+QtFileDialog::~QtFileDialog()
+{
+    qWarning("QtFileDialog::~QtFileDialog()");
+}
+
+QString QtFileDialog::existingDirectory(QWidget * parent, const QString & caption, const QString & dir)
+{
+    return QFileDialog::getExistingDirectory(parent,caption,dir,QFileDialog::DontResolveSymlinks | QFileDialog::ShowDirsOnly);
+}
+
+QString QtFileDialog::openFileName(QWidget * parent,const QString & caption,const QString & dir,const QString & filter,
+                QString * selectedFilter)
+{
+    return QFileDialog::getOpenFileName(parent,caption,dir,filter,selectedFilter);
+}
+
+QStringList QtFileDialog::openFileNames(QWidget * parent, const QString & caption , const QString & dir ,
+                const QString & filter, QString * selectedFilter)
+{
+    return QFileDialog::getOpenFileNames(parent,caption,dir,filter,selectedFilter);
+}
+
+ QString QtFileDialog::saveFileName ( QWidget * parent, const QString & caption,
+        const QString & dir, const QString & filter, QString * selectedFilter)
+{
+        return QFileDialog::getSaveFileName(parent,caption,dir,filter,selectedFilter);
+}
+
+
+
+
+
+
+FileDialog* QtFileDialogFactory::create()
+{
+    return new QtFileDialog();
+}
+
+QString QtFileDialogFactory::name()
+{
+        return QtFileDialogFactoryName;
+}
+
+QString QtFileDialogFactory::QtFileDialogFactoryName = "Qt File Dialog";
+
+