homescreenapp/hsapplication/src/hshomescreen.cpp
changeset 35 f9ce957a272c
child 36 cdae8c6c3876
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/homescreenapp/hsapplication/src/hshomescreen.cpp	Fri Mar 19 09:27:44 2010 +0200
@@ -0,0 +1,196 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Homescreen application main class.
+*
+*/
+
+#include <QStateMachine>
+#include <QDir>
+
+#include <qservicemanager.h>
+#include <qservicefilter.h>
+#include <qserviceinterfacedescriptor.h>
+
+#include <HbInstance>
+
+#include "hshomescreen.h"
+#include "hstest_global.h"
+
+QTM_USE_NAMESPACE
+
+/*!
+    \class HsHomeScreen
+    \ingroup group_hsapplication
+    \brief Homescreen application main class.
+    Loads a runtime from a runtime provider plugin. Manages
+    the state machine execution.
+*/
+
+/*!
+    Constructor.
+    \a parent Parent object.
+*/
+HsHomeScreen::HsHomeScreen(QObject *parent)
+  : QObject(parent),
+    mRuntime(0)
+{
+    HSTEST_FUNC_ENTRY("HS::HsHomeScreen::HsHomeScreen");
+
+    registerServicePlugins();
+
+    QServiceManager manager;
+    QServiceFilter filter("com.nokia.homescreen.runtime.HsRuntime");
+    QList<QServiceInterfaceDescriptor> interfaces = manager.findInterfaces(filter);
+    QObject *interface = manager.loadInterface(interfaces.first().interfaceName());
+    mRuntime = qobject_cast<QStateMachine*>(interface);
+    if (mRuntime) {
+        mRuntime->setParent(this);
+        connect(mRuntime, SIGNAL(started()), SLOT(onRuntimeStarted()));
+        connect(mRuntime, SIGNAL(stopped()), SLOT(onRuntimeStopped()));
+        hbInstance->allMainWindows().at(0)->installEventFilter(this);
+    } else {
+        emit exit();
+    }
+    HSTEST_FUNC_EXIT("HS::HsHomeScreen::HsHomeScreen");
+}
+
+/*!
+    Destructor.
+*/
+HsHomeScreen::~HsHomeScreen()
+{
+}
+
+/*!
+    \fn void HsHomeScreen::exit()
+    Emitted when the home screen application needs to exit.
+*/
+
+/*!
+    Starts the runtime.
+*/
+void HsHomeScreen::start()
+{
+    HSTEST_FUNC_ENTRY("HS::HsHomeScreen::start");
+    if (mRuntime) {
+        mRuntime->start();
+    } else {
+        HSTEST_FUNC_EXIT("HS::HsHomeScreen::start, mRuntime not created, exit application");
+        emit exit();
+    }
+    HSTEST_FUNC_EXIT("HS::HsHomeScreen::start");
+}
+
+/*!
+    Stops the runtime.
+*/
+void HsHomeScreen::stop()
+{
+	if (mRuntime && mRuntime->isRunning()) {
+		QMetaObject::invokeMethod(mRuntime, "event_exit");
+	}
+}
+
+/*!
+    \copydoc QObject::eventFilter(QObject *watched, QEvent *event)
+*/
+bool HsHomeScreen::eventFilter(QObject *watched, QEvent *event)
+{
+    Q_UNUSED(watched);
+    if (event->type() == QEvent::Close) {
+        return true;
+    }
+    return false;
+}
+
+/*!
+    Called after the runtime has started.
+*/
+void HsHomeScreen::onRuntimeStarted()
+{
+}
+
+/*!
+    Called after the runtime has stopped.
+*/
+void HsHomeScreen::onRuntimeStopped()
+{
+    emit exit();
+}
+
+/*!
+    Registers service plugins pre-installed on the device.
+*/
+void HsHomeScreen::registerServicePlugins()
+{
+    HSTEST_FUNC_ENTRY("HS::HsHomeScreen::registerServicePlugins()");
+    QStringList pluginPaths;
+
+    pluginPaths << "hsresources/plugins";
+#ifdef Q_OS_SYMBIAN
+    pluginPaths << "private/20022F35/import/widgetregistry";
+#else
+    pluginPaths << "hsresources/import/widgetregistry";
+#endif
+
+    QFileInfoList drives = QDir::drives();
+    foreach(const QString pluginPath, pluginPaths) {
+#ifdef Q_OS_SYMBIAN
+        //Check plugin dirs from root of different drives
+        foreach(QFileInfo drive, drives) {
+            QString driveLetter = drive.absolutePath();
+            QString path = driveLetter + pluginPath;
+            if(QDir(path).exists()) {
+                registerServicePlugins(path);
+            }
+        }
+#endif
+        //Check plugin path relative to current dir
+        if(QDir(pluginPath).exists()) {
+            registerServicePlugins(pluginPath);
+        }
+    }
+    HSTEST_FUNC_EXIT("HS::HsHomeScreen::registerServicePlugins()");
+}
+
+/*!
+    Recursively registers service plugins starting from given /a root
+    directory. All directories containing plugins are added to
+    application's library paths at the same time.
+*/
+void HsHomeScreen::registerServicePlugins(const QString &root)
+{
+    HSTEST_FUNC_ENTRY("HS::HsHomeScreen::registerServicePlugins(const QString &)");
+    QDir dir = QDir(root);
+    QFileInfoList fileInfos = dir.entryInfoList(QDir::AllDirs | QDir::NoDotAndDotDot);
+
+    foreach (QFileInfo fileInfo, fileInfos) {
+        registerServicePlugins(fileInfo.absoluteFilePath());
+    }
+
+    fileInfos = dir.entryInfoList(QStringList("*.xml"));
+
+    if (!fileInfos.isEmpty()) {
+        //Plugin dll and xml are in the same directory
+        QApplication::addLibraryPath(root);
+        qDebug() << QString("HS::HsHomeScreen::registerServicePlugins - Directory added to application's library paths: ")
+                 << root;
+        QServiceManager manager;
+        foreach(QFileInfo fileInfo, fileInfos) {
+            manager.addService(fileInfo.absoluteFilePath());
+            qDebug() << QString("HS::HsHomeScreen::registerServicePlugins - Plugin registered: ") + fileInfo.fileName();
+        }
+    }
+    HSTEST_FUNC_EXIT("HS::HsHomeScreen::registerServicePlugins(const QString &)");
+}