added action to launch external player

gui/mainwindow.cpp

@@ -41,6 +41,7 @@
 #include <QMimeData>
 #include <QTextStream>
 #include <QFileSystemWatcher>
+#include <QDesktopServices>
 #ifdef TAGEDITOR_USE_WEBENGINE
 #include <QWebEngineView>
 #else
@@ -171,6 +172,7 @@ MainWindow::MainWindow(QWidget *parent) :
     connect(m_ui->actionSave_file_information, &QAction::triggered, this, &MainWindow::saveFileInformation);
     connect(m_ui->actionClose, &QAction::triggered, this, &MainWindow::closeFile);
     connect(m_ui->actionReload, &QAction::triggered, this, &MainWindow::reparseFile);
+    connect(m_ui->actionExternalPlayer, &QAction::triggered, this, &MainWindow::spawnExternalPlayer);
     //  menu: directory
     connect(m_ui->actionSelect_next_file, &QAction::triggered, this, &MainWindow::selectNextFile);
     connect(m_ui->actionSelect_next_file_and_save_current, &QAction::triggered, this, &MainWindow::saveAndShowNextFile);
@@ -510,6 +512,7 @@ void MainWindow::updateUiStatus()
     m_ui->actionSave_file_information->setEnabled(opened);
     m_ui->actionClose->setEnabled(opened);
     m_ui->actionReload->setEnabled(opened);
+    m_ui->actionExternalPlayer->setEnabled(opened);
     m_ui->buttonsWidget->setEnabled(opened);
     // clear and restore buttons
     m_ui->clearEntriesPushButton->setEnabled(hasTag);
@@ -660,6 +663,18 @@ void MainWindow::copyInfoWebViewSelection()
     QApplication::clipboard()->setText(m_infoWebView->selectedText());
 }
 
+/*!
+ * \brief Spawns an external player for the current file.
+ */
+void MainWindow::spawnExternalPlayer()
+{
+    if(!m_currentPath.isEmpty()) {
+        QDesktopServices::openUrl(QStringLiteral("file://") + m_currentPath);
+    } else {
+        m_ui->statusBar->showMessage(tr("No file opened."));
+    }
+}
+
 /*!
  * \brief Calls the specified \a function for each of the currently present tag edits.
  */
@@ -756,12 +771,18 @@ bool MainWindow::startParsing(const QString &path, bool forceRefresh)
  */
 bool MainWindow::reparseFile()
 {
-    if(m_fileInfo.isOpen() && !m_currentPath.isEmpty()) {
-        return startParsing(m_currentPath, true);
-    } else {
-        QMessageBox::warning(this, windowTitle(), tr("Currently is not file opened."));
+    if(!m_fileOperationMutex.try_lock()) {
+        m_ui->statusBar->showMessage(tr("Unable to reload the file because the current process hasn't finished yet."));
         return false;
     }
+    {
+        lock_guard<mutex> guard(m_fileOperationMutex, adopt_lock);
+        if(!m_fileInfo.isOpen() || m_currentPath.isEmpty()) {
+            QMessageBox::warning(this, windowTitle(), tr("Currently is not file opened."));
+            return false;
+        }
+    }
+    return startParsing(m_currentPath, true);
 }
 
 /*!

gui/mainwindow.h

@@ -101,6 +101,7 @@ private slots:
     void updateInfoWebView();
     void showInfoWebViewContextMenu(const QPoint &);
     void copyInfoWebViewSelection();
+    void spawnExternalPlayer();
 
 private:
     void updateTagEditsAndAttachmentEdits(bool updateUi = true, PreviousValueHandling previousValueHandling = PreviousValueHandling::Auto);

gui/mainwindow.ui

@@ -330,6 +330,7 @@ the file reverting all unsaved changings.</string>
     <addaction name="actionSave_file_information"/>
     <addaction name="separator"/>
     <addaction name="actionReload"/>
+    <addaction name="actionExternalPlayer"/>
     <addaction name="actionSave"/>
     <addaction name="actionDelete_all_tags"/>
     <addaction name="separator"/>
@@ -391,6 +392,9 @@ the file reverting all unsaved changings.</string>
    <property name="text">
     <string>&amp;Delete all tags</string>
    </property>
+   <property name="shortcut">
+    <string>Ctrl+D</string>
+   </property>
   </action>
   <action name="actionClose">
    <property name="enabled">
@@ -454,6 +458,9 @@ the file reverting all unsaved changings.</string>
    <property name="text">
     <string>&amp;Save file information as HTML document</string>
    </property>
+   <property name="shortcut">
+    <string>Ctrl+H</string>
+   </property>
   </action>
   <action name="actionSelect_next_file_and_save_current">
    <property name="icon">
@@ -465,7 +472,7 @@ the file reverting all unsaved changings.</string>
     <string>Select &amp;next file and save current</string>
    </property>
    <property name="shortcut">
-    <string>F5</string>
+    <string>F3</string>
    </property>
   </action>
   <action name="actionAbout">
@@ -538,10 +545,31 @@ the file reverting all unsaved changings.</string>
     <bool>false</bool>
    </property>
    <property name="icon">
-    <iconset theme="document-revert"/>
+    <iconset theme="document-revert">
+     <normaloff/>
+    </iconset>
    </property>
    <property name="text">
-    <string>Reload (reverts all changes!)</string>
+    <string>&amp;Reload (reverts all changes!)</string>
+   </property>
+   <property name="shortcut">
+    <string>F5</string>
+   </property>
+  </action>
+  <action name="actionExternalPlayer">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="icon">
+    <iconset theme="media-playback-start">
+     <normaloff/>
+    </iconset>
+   </property>
+   <property name="text">
+    <string>&amp;Play (external player)</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+E</string>
    </property>
   </action>
  </widget>