Long live Qt for S60!

1 files changed, 252 insertions, 0 deletions

diff --git a/src/corelib/io/qfilesystemwatcher_symbian.cpp b/src/corelib/io/qfilesystemwatcher_symbian.cpp
new file mode 100644
index 0000000..883b70f
--- /dev/null
+++ b/src/corelib/io/qfilesystemwatcher_symbian.cpp
@@ -0,0 +1,252 @@
+/****************************************************************************
+**
+** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $TROLLTECH_DUAL_EMBEDDED_LICENSE$
+**
+****************************************************************************/
+
+#include "qfilesystemwatcher.h"
+#include "qfilesystemwatcher_symbian_p.h"
+#include "qfileinfo.h"
+#include "qdebug.h"
+#include "private/qcore_symbian_p.h"
+#include <QDir>
+
+#ifndef QT_NO_FILESYSTEMWATCHER
+
+
+QT_BEGIN_NAMESPACE
+
+CNotifyChangeEvent* CNotifyChangeEvent::New(RFs &fs, const TDesC& file,
+        QSymbianFileSystemWatcherEngine* e)
+{
+    CNotifyChangeEvent* self = new CNotifyChangeEvent(fs, file, e);
+    return self;
+}
+
+CNotifyChangeEvent::CNotifyChangeEvent(RFs &fs, const TDesC& file,
+    QSymbianFileSystemWatcherEngine* e, TInt aPriority) :
+        CActive(aPriority),
+        fsSession(fs),
+        watchedPath(file),
+        engine(e)
+{
+    fsSession.NotifyChange(ENotifyAll, iStatus, file);
+    CActiveScheduler::Add(this);
+    SetActive();
+}
+
+CNotifyChangeEvent::~CNotifyChangeEvent()
+{
+    Cancel();
+}
+
+void CNotifyChangeEvent::RunL()
+{
+    if (iStatus.Int() == KErrNone){
+        fsSession.NotifyChange(ENotifyAll, iStatus, watchedPath);
+        SetActive();
+        engine->emitPathChanged(this);
+    } else {
+        qWarning("CNotifyChangeEvent::RunL() - Failed to order change notifications: %d", iStatus.Int());
+    }
+}
+
+void CNotifyChangeEvent::DoCancel()
+{
+    fsSession.NotifyChangeCancel();
+}
+
+QSymbianFileSystemWatcherEngine::QSymbianFileSystemWatcherEngine() :
+    watcherStarted(false)
+{
+    moveToThread(this);
+}
+
+QSymbianFileSystemWatcherEngine::~QSymbianFileSystemWatcherEngine()
+{
+    stop();
+}
+
+QStringList QSymbianFileSystemWatcherEngine::addPaths(const QStringList &paths,
+        QStringList *files, QStringList *directories)
+{
+    QMutexLocker locker(&mutex);
+    QStringList p = paths;
+
+    if (!startWatcher()) {
+        qWarning("Could not start QSymbianFileSystemWatcherEngine thread");
+
+        return p;
+    }
+
+    QMutableListIterator<QString> it(p);
+    while (it.hasNext()) {
+        QString path = it.next();
+        QFileInfo fi(path);
+        if (!fi.exists())
+            continue;
+
+        bool isDir = fi.isDir();
+        if (isDir) {
+            if (directories->contains(path))
+                continue;
+        } else {
+            if (files->contains(path))
+                continue;
+        }
+
+        // Use absolute filepath as relative paths seem to have some issues.
+        QString filePath = fi.absoluteFilePath();
+        if(isDir && filePath.at(filePath.size()-1) != QChar('/')) {
+            filePath += QChar('/');
+        }
+
+        currentEvent = NULL;
+        QMetaObject::invokeMethod(this,
+                "addNativeListener",
+                Qt::QueuedConnection,
+                Q_ARG(QString, filePath));
+
+        syncCondition.wait(&mutex);
+
+        if (currentEvent) {
+            currentEvent->isDir = isDir;
+
+            activeObjectToPath.insert(currentEvent, path);
+            it.remove();
+
+            if (isDir)
+                 directories->append(path);
+             else
+                 files->append(path);
+        }
+    }
+
+    return p;
+}
+
+QStringList QSymbianFileSystemWatcherEngine::removePaths(const QStringList &paths,
+        QStringList *files, QStringList *directories)
+{
+    QMutexLocker locker(&mutex);
+
+    QStringList p = paths;
+    QMutableListIterator<QString> it(p);
+    while (it.hasNext()) {
+        QString path = it.next();
+
+        currentEvent = activeObjectToPath.key(path);
+        if (!currentEvent)
+            continue;
+        activeObjectToPath.remove(currentEvent);
+
+        QMetaObject::invokeMethod(this,
+                "removeNativeListener",
+                Qt::QueuedConnection);
+
+        syncCondition.wait(&mutex);
+
+        it.remove();
+
+        files->removeAll(path);
+        directories->removeAll(path);
+    }
+
+    if (activeObjectToPath.size() == 0)
+        stop();
+
+    return p;
+}
+
+void QSymbianFileSystemWatcherEngine::emitPathChanged(CNotifyChangeEvent *e)
+{
+    QMutexLocker locker(&mutex);
+
+    QString path = activeObjectToPath.value(e);
+    QFileInfo fi(path);
+
+    if (e->isDir) {
+        emit directoryChanged(path, !fi.exists());
+    } else {
+        emit fileChanged(path, !fi.exists());
+    }
+}
+
+void QSymbianFileSystemWatcherEngine::stop()
+{
+    QMetaObject::invokeMethod(this, "quit");
+    wait();
+}
+
+// This method must be called inside mutex
+bool QSymbianFileSystemWatcherEngine::startWatcher()
+{
+    bool retval = true;
+
+    if (!watcherStarted) {
+#if defined(Q_OS_SYMBIAN)
+        setStackSize(0x5000);
+#endif
+        start();
+        syncCondition.wait(&mutex);
+
+        if (errorCode != KErrNone) {
+            retval = false;
+        } else {
+            watcherStarted = true;
+        }
+    }
+    return retval;
+}
+
+
+void QSymbianFileSystemWatcherEngine::run()
+{
+    // Initialize file session
+
+    errorCode = fsSession.Connect();
+
+    mutex.lock();
+    syncCondition.wakeOne();
+    mutex.unlock();
+
+    if (errorCode == KErrNone) {
+        exec();
+
+        foreach(CNotifyChangeEvent* e, activeObjectToPath.keys()) {
+            e->Cancel();
+            delete e;
+        }
+
+        activeObjectToPath.clear();
+        fsSession.Close();
+        watcherStarted = false;
+    }
+}
+
+void QSymbianFileSystemWatcherEngine::addNativeListener(const QString &directoryPath)
+{
+    QMutexLocker locker(&mutex);
+    HBufC* buffer = qt_QString2HBufCNewL(QDir::toNativeSeparators(directoryPath));
+    currentEvent = CNotifyChangeEvent::New(fsSession, *buffer, this);
+    delete buffer;
+    syncCondition.wakeOne();
+}
+
+void QSymbianFileSystemWatcherEngine::removeNativeListener()
+{
+    QMutexLocker locker(&mutex);
+    currentEvent->Cancel();
+    delete currentEvent;
+    currentEvent = NULL;
+    syncCondition.wakeOne();
+}
+
+
+QT_END_NAMESPACE
+#endif // QT_NO_FILESYSTEMWATCHER