Polish the QtWidgets/Player example.

Point the file dialog to the Movies folder.
Add command proper command line handling.
Change the logic to use QUrl everywhere.

Change-Id: I1e54e600187153f52a55e3a381a24e4f2eeda3ab
Reviewed-by: Yoann Lopes <yoann.lopes@theqtcompany.com>

examples/multimediawidgets/player/main.cpp

@@ -41,13 +41,33 @@
 #include "player.h"
 
 #include <QApplication>
+#include <QCommandLineParser>
+#include <QCommandLineOption>
+#include <QDir>
 
 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);
 
+    QCoreApplication::setApplicationName("Player Example");
+    QCoreApplication::setOrganizationName("QtProject");
+    QCoreApplication::setApplicationVersion(QT_VERSION_STR);
+    QCommandLineParser parser;
+    parser.setApplicationDescription("Qt MultiMedia Player Example");
+    parser.addHelpOption();
+    parser.addVersionOption();
+    parser.addPositionalArgument("url", "The URL to open.");
+    parser.process(app);
+
     Player player;
 
+    if (!parser.positionalArguments().isEmpty() && player.isPlayerAvailable()) {
+        QList<QUrl> urls;
+        foreach (const QString &a, parser.positionalArguments())
+            urls.append(QUrl::fromUserInput(a, QDir::currentPath(), QUrl::AssumeLocalFile));
+        player.addToPlaylist(urls);
+    }
+
 #if defined(Q_WS_SIMULATOR)
     player.setAttribute(Qt::WA_LockLandscapeOrientation);
     player.showMaximized();

examples/multimediawidgets/player/player.cpp

@@ -167,7 +167,7 @@ Player::Player(QWidget *parent)
 
     setLayout(layout);
 
-    if (!player->isAvailable()) {
+    if (!isPlayerAvailable()) {
         QMessageBox::warning(this, tr("Service not available"),
                              tr("The QMediaPlayer object does not have a valid service.\n"\
                                 "Please check the media service plugins are installed."));
@@ -182,38 +182,47 @@ Player::Player(QWidget *parent)
     }
 
     metaDataChanged();
-
-    QStringList arguments = qApp->arguments();
-    arguments.removeAt(0);
-    addToPlaylist(arguments);
 }
 
 Player::~Player()
 {
 }
 
-void Player::open()
+bool Player::isPlayerAvailable() const
 {
-    QStringList fileNames = QFileDialog::getOpenFileNames(this, tr("Open Files"));
-    addToPlaylist(fileNames);
+    return player->isAvailable();
 }
 
-void Player::addToPlaylist(const QStringList& fileNames)
+void Player::open()
 {
-    foreach (QString const &argument, fileNames) {
-        QFileInfo fileInfo(argument);
-        if (fileInfo.exists()) {
-            QUrl url = QUrl::fromLocalFile(fileInfo.absoluteFilePath());
-            if (fileInfo.suffix().toLower() == QLatin1String("m3u")) {
+    QFileDialog fileDialog(this);
+    fileDialog.setAcceptMode(QFileDialog::AcceptOpen);
+    fileDialog.setWindowTitle(tr("Open Files"));
+    QStringList supportedMimeTypes = player->supportedMimeTypes();
+    if (!supportedMimeTypes.isEmpty()) {
+        supportedMimeTypes.append("audio/x-m3u"); // MP3 playlists
+        fileDialog.setMimeTypeFilters(supportedMimeTypes);
+    }
+    fileDialog.setDirectory(QStandardPaths::standardLocations(QStandardPaths::MoviesLocation).value(0, QDir::homePath()));
+    if (fileDialog.exec() == QDialog::Accepted)
+        addToPlaylist(fileDialog.selectedUrls());
+}
+
+static bool isPlaylist(const QUrl &url) // Check for ".m3u" playlists.
+{
+    if (!url.isLocalFile())
+        return false;
+    const QFileInfo fileInfo(url.toLocalFile());
+    return fileInfo.exists() && !fileInfo.suffix().compare(QLatin1String("m3u"), Qt::CaseInsensitive);
+}
+
+void Player::addToPlaylist(const QList<QUrl> urls)
+{
+    foreach (const QUrl &url, urls) {
+        if (isPlaylist(url))
             playlist->load(url);
-            } else
+        else
             playlist->addMedia(url);
-        } else {
-            QUrl url(argument);
-            if (url.isValid()) {
-                playlist->addMedia(url);
-            }
-        }
     }
 }
 

examples/multimediawidgets/player/player.h

@@ -69,6 +69,10 @@ public:
     Player(QWidget *parent = 0);
     ~Player();
 
+    bool isPlayerAvailable() const;
+
+    void addToPlaylist(const QList<QUrl> urls);
+
 signals:
     void fullScreenChanged(bool fullScreen);
 
@@ -93,7 +97,6 @@ private slots:
 #ifndef PLAYER_NO_COLOROPTIONS
     void showColorDialog();
 #endif
-    void addToPlaylist(const QStringList &fileNames);
 
 private:
     void setTrackInfo(const QString &info);