Add shortcut to restart PrEditor if running in standalone mode

preditor/__init__.py

@@ -113,7 +113,7 @@ def configure(name, parent_callback=None, excepthook=True, logging=True, streams
         preditor.debug.BlurExcepthook.install()
 
 
-def launch(run_workbox=False, app_id=None, name=None):
+def launch(run_workbox=False, app_id=None, name=None, standalone=False):
     """Launches the preditor gui creating the QApplication instance if not
     already created.
 
@@ -125,6 +125,9 @@ def launch(run_workbox=False, app_id=None, name=None):
         app_id (str, optional): Set the QApplication's applicationName to this
             value. This is normally only used when launching a standalone
             instance of the PrEditor gui.
+        standalone (bool, optional): Launch PrEditor in standalone mode. This
+            enables extra options that only make sense when it is running as
+            its own app, not inside of another app.
 
     Returns:
         preditor.gui.loggerwindow.LoggerWindow: The instance of the PrEditor
@@ -147,7 +150,9 @@ def launch(run_workbox=False, app_id=None, name=None):
 
     # Check if we can actually run the PrEditor gui and setup Qt if required
     app = App(name=app_id)
-    widget = LoggerWindow.instance(run_workbox=run_workbox, name=name)
+    widget = LoggerWindow.instance(
+        run_workbox=run_workbox, name=name, standalone=standalone
+    )
 
     # Show the PrEditor instance and make sure it regains focus and visibility
     widget.show()

preditor/cli.py

@@ -66,7 +66,7 @@ def launch(name, run_workbox):
     parameter_source = click.get_current_context().get_parameter_source('name')
     app_id = get_app_id(name, parameter_source == ParameterSource.DEFAULT)
 
-    preditor.launch(run_workbox=run_workbox, app_id=app_id, name=name)
+    preditor.launch(run_workbox=run_workbox, app_id=app_id, name=name, standalone=True)
 
 
 # shortcut

preditor/gui/loggerwindow.py

@@ -55,7 +55,7 @@ class LoggerWindow(Window):
     _instance = None
     styleSheetChanged = Signal(str)
 
-    def __init__(self, parent, name=None, run_workbox=False):
+    def __init__(self, parent, name=None, run_workbox=False, standalone=False):
         super(LoggerWindow, self).__init__(parent=parent)
         self.name = name if name else DEFAULT_CORE_NAME
         self.aboutToClearPathsEnabled = False
@@ -109,6 +109,7 @@ def __init__(self, parent, name=None, run_workbox=False):
         self._stds = None
         self.uiLogToFileClearACT.setVisible(False)
 
+        self.uiRestartACT.triggered.connect(self.restartLogger)
         self.uiCloseLoggerACT.triggered.connect(self.closeLogger)
 
         self.uiRunAllACT.triggered.connect(self.execAll)
@@ -219,6 +220,7 @@ def __init__(self, parent, name=None, run_workbox=False):
             QIcon(resourcePath('img/content-save.png'))
         )
         self.uiAboutPreditorACT.setIcon(QIcon(resourcePath('img/information.png')))
+        self.uiRestartACT.setIcon(QIcon(resourcePath('img/restart.svg')))
         self.uiCloseLoggerACT.setIcon(QIcon(resourcePath('img/close-thick.png')))
 
         # Make action shortcuts available anywhere in the Logger
@@ -268,6 +270,10 @@ def __init__(self, parent, name=None, run_workbox=False):
 
         self.setup_run_workbox()
 
+        if not standalone:
+            # This action only is valid when running in standalone mode
+            self.uiRestartACT.setVisible(False)
+
         # Run the current workbox after the LoggerWindow is shown.
         if run_workbox:
             # By using two singleShot timers, we can show and draw the LoggerWindow,
@@ -675,6 +681,22 @@ def save_prefs(self, pref):
         with open(filename, 'w') as fp:
             json.dump(pref, fp, indent=4)
 
+    def restartLogger(self):
+        """Closes this PrEditor instance and starts a new process with the same
+        cli arguments.
+
+        Note: This only works if PrEditor is running in standalone mode. It doesn't
+        quit the QApplication or other host process. It simply closes this instance
+        of PrEditor, saving its preferences, which should allow Qt to exit if no
+        other windows are open.
+        """
+        self.close()
+
+        # Get the current command and launch it as a new process.
+        cmd = sys.argv[0]
+        args = sys.argv[1:]
+        QtCore.QProcess.startDetached(cmd, args)
+
     def restorePrefs(self):
         pref = self.load_prefs()
 
@@ -1065,7 +1087,9 @@ def gotoTabByIndex(self, index):
         group_tab.setCurrentIndex(index)
 
     @staticmethod
-    def instance(parent=None, name=None, run_workbox=False, create=True):
+    def instance(
+        parent=None, name=None, run_workbox=False, create=True, standalone=False
+    ):
         """Returns the existing instance of the PrEditor gui creating it on first call.
 
         Args:
@@ -1074,6 +1098,9 @@ def instance(parent=None, name=None, run_workbox=False, create=True):
             run_workbox (bool, optional): If the instance hasn't been created yet, this
                 will execute the active workbox's code once fully initialized.
             create (bool, optional): Returns None if the instance has not been created.
+            standalone (bool, optional): Launch PrEditor in standalone mode. This
+                enables extra options that only make sense when it is running as
+                its own app, not inside of another app.
 
         Returns:
             Returns a fully initialized instance of the PrEditor gui. If called more
@@ -1086,7 +1113,9 @@ def instance(parent=None, name=None, run_workbox=False, create=True):
                 return None
 
             # create the logger instance
-            inst = LoggerWindow(parent, name=name, run_workbox=run_workbox)
+            inst = LoggerWindow(
+                parent, name=name, run_workbox=run_workbox, standalone=standalone
+            )
 
             # RV has a Unique window structure. It makes more sense to not parent a
             # singleton window than to parent it to a specific top level window.

preditor/gui/ui/loggerwindow.ui

@@ -110,6 +110,7 @@
     <addaction name="uiCloseWorkboxACT"/>
     <addaction name="separator"/>
     <addaction name="uiSaveConsoleSettingsACT"/>
+    <addaction name="uiRestartACT"/>
     <addaction name="uiCloseLoggerACT"/>
    </widget>
    <widget class="QMenu" name="uiHelpMENU">
@@ -930,6 +931,17 @@ at the indicated line in the specified text editor.
     <string>Backup</string>
    </property>
   </action>
+  <action name="uiRestartACT">
+   <property name="text">
+    <string>Restart PrEditor</string>
+   </property>
+   <property name="toolTip">
+    <string>Closes PrEditor and launches a new process with the same cli arguments.</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+Alt+Shift+R</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>