Small style cleanups

Add guards for Presentations / Images / Media which are removed from files system after loading
Fix 694079 on Linux by adding css into build
Add guard to delay exiting as shutting down in middle of a service is not a good idea

bzr-revno: 1171
Fixes: https://launchpad.net/bugs/694079

MANIFEST.in

@@ -3,6 +3,7 @@ recursive-include openlp *.sqlite
 recursive-include openlp *.csv
 recursive-include openlp *.html
 recursive-include openlp *.js
+recursive-include openlp *.css
 recursive-include openlp *.qm
 recursive-include documentation *
 recursive-include resources/forms *

openlp/core/lib/mediamanageritem.py

@@ -381,7 +381,7 @@ class MediaManagerItem(QtGui.QWidget):
         if os.path.exists(thumb):
             filedate = os.stat(file).st_mtime
             thumbdate = os.stat(thumb).st_mtime
-            #if file updated rebuild icon
+            # if file updated rebuild icon
             if filedate > thumbdate:
                 self.iconFromFile(file, thumb)
         else:

openlp/core/ui/mainwindow.py

@@ -825,8 +825,18 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
             else:
                 event.ignore()
         else:
+            ret = QtGui.QMessageBox.question(self,
+                translate('OpenLP.MainWindow', 'Close OpenLP'),
+                translate('OpenLP.MainWindow', 'Are you sure you want to Exit?'),
+                QtGui.QMessageBox.StandardButtons(
+                    QtGui.QMessageBox.Yes |
+                    QtGui.QMessageBox.No),
+                QtGui.QMessageBox.Yes)
+            if ret == QtGui.QMessageBox.Yes:
                 self.cleanUp()
                 event.accept()
+            else:
+                event.ignore()
 
     def cleanUp(self):
         """

openlp/plugins/images/lib/mediaitem.py

@@ -132,7 +132,7 @@ class ImageMediaItem(MediaManagerItem):
                         os.remove(os.path.join(self.servicePath,
                             unicode(text.text())))
                     except OSError:
-                        #if not present do not worry
+                        # if not present do not worry
                         pass
                 self.listView.takeItem(row)
             SettingsManager.set_list(self.settingsSection,
@@ -172,9 +172,18 @@ class ImageMediaItem(MediaManagerItem):
             for item in items:
                 bitem = self.listView.item(item.row())
                 filename = unicode(bitem.data(QtCore.Qt.UserRole).toString())
+                if os.path.exists(filename):
                     (path, name) = os.path.split(filename)
                     service_item.add_from_image(filename, name)
                     return True
+                else:
+                    # File is no longer present
+                    QtGui.QMessageBox.critical(
+                        self, translate('ImagePlugin.MediaItem',
+                        'Missing Image'),
+                        unicode(translate('ImagePlugin.MediaItem',
+                        'The Image %s no longer exists.')) % filename)
+                    return False
         else:
             return False
 

openlp/plugins/media/lib/mediaitem.py

@@ -89,7 +89,7 @@ class MediaMediaItem(MediaManagerItem):
             self.ImageWidget.sizePolicy().hasHeightForWidth())
         self.ImageWidget.setSizePolicy(sizePolicy)
         self.ImageWidget.setObjectName(u'ImageWidget')
-        #Replace backgrounds do not work at present so remove functionality.
+        # Replace backgrounds do not work at present so remove functionality.
         self.blankButton = self.toolbar.addToolbarButton(
             translate('MediaPlugin.MediaItem', 'Replace Background'),
             u':/slides/slide_blank.png',
@@ -122,6 +122,7 @@ class MediaMediaItem(MediaManagerItem):
             if item is None:
                 return False
         filename = unicode(item.data(QtCore.Qt.UserRole).toString())
+        if os.path.exists(filename):
             service_item.title = unicode(
                 translate('MediaPlugin.MediaItem', 'Media'))
             service_item.add_capability(ItemCapabilities.RequiresMedia)
@@ -131,6 +132,14 @@ class MediaMediaItem(MediaManagerItem):
             (path, name) = os.path.split(filename)
             service_item.add_from_command(path, name, frame)
             return True
+        else:
+            # File is no longer present
+            QtGui.QMessageBox.critical(
+                self, translate('MediaPlugin.MediaItem',
+                'Missing Media File'),
+                unicode(translate('MediaPlugin.MediaItem',
+                'The file %s no longer exists.')) % filename)
+            return False
 
     def initialise(self):
         self.listView.setSelectionMode(

openlp/plugins/presentations/lib/impresscontroller.py

@@ -255,8 +255,9 @@ class ImpressDocument(PresentationDocument):
             self.document = desktop.loadComponentFromURL(url, u'_blank',
                 0, properties)
         except:
-            log.exception(u'Failed to load presentation')
+            log.exception(u'Failed to load presentation %s' % url)
             return False
+
         self.presentation = self.document.getPresentation()
         self.presentation.Display = \
             self.controller.plugin.renderManager.screens.current_display + 1

openlp/plugins/presentations/lib/mediaitem.py

@@ -153,7 +153,7 @@ class PresentationMediaItem(MediaManagerItem):
         """
         self.DisplayTypeComboBox.clear()
         for item in self.controllers:
-            #load the drop down selection
+            # load the drop down selection
             if self.controllers[item].enabled():
                 self.DisplayTypeComboBox.addItem(item)
         if self.DisplayTypeComboBox.count() > 1:
@@ -254,8 +254,10 @@ class PresentationMediaItem(MediaManagerItem):
             for item in items:
                 bitem = self.listView.item(item.row())
                 filename = unicode(bitem.data(QtCore.Qt.UserRole).toString())
+                if os.path.exists(filename):
                     if shortname == self.Automatic:
-                    service_item.shortname = self.findControllerByType(filename)
+                        service_item.shortname = \
+                            self.findControllerByType(filename)
                         if not service_item.shortname:
                             return False
                     controller = self.controllers[service_item.shortname]
@@ -271,6 +273,14 @@ class PresentationMediaItem(MediaManagerItem):
                         img = doc.get_thumbnail_path(i, True)
                     doc.close_presentation()
                     return True
+                else:
+                    # File is no longer present
+                    QtGui.QMessageBox.critical(
+                        self, translate('PresentationPlugin.MediaItem',
+                        'Missing Presentation'),
+                        unicode(translate('PresentationPlugin.MediaItem',
+                        'The Presentation %s no longer exists.')) % filename)
+                    return False
         else:
             return False
 
@@ -280,7 +290,7 @@ class PresentationMediaItem(MediaManagerItem):
         file type. This is used if "Automatic" is set as the preferred
         controller. Find the first (alphabetic) enabled controller which
         "supports" the extension. If none found, then look for a controller
-        which "alsosupports" it instead.
+        which "also supports" it instead.
         """
         filetype = filename.split(u'.')[1]
         if not filetype: