Update service items on service load

openlp/core/lib/eventreceiver.py

@@ -75,7 +75,7 @@ class EventReceiver(QtCore.QObject):
         Broadcasts that an item has been made live/previewed
 
     ``slidecontroller_{live|preview}_change``
-        Informs the slidecontroller that a slide change has occurred and to 
+        Informs the slidecontroller that a slide change has occurred and to
         update itself
 
     ``slidecontroller_{live|preview}_changed``
@@ -83,7 +83,7 @@ class EventReceiver(QtCore.QObject):
 
     ``slidecontroller_{live|preview}_text_request``
         Request the text for the current item in the controller
-        Returns a slidecontroller_{live|preview}_text_response with an 
+        Returns a slidecontroller_{live|preview}_text_response with an
         array of dictionaries with the tag and verse text
 
     ``slidecontroller_{live|preview}_blank``
@@ -106,23 +106,23 @@ class EventReceiver(QtCore.QObject):
 
     ``servicemanager_set_item``
         Go live on a specific item, by index
-        
+
     ``servicemanager_list_request``
         Request the service list. Responds with servicemanager_list_response
         containing a array of dictionaries
 
     ``maindisplay_blank``
-        Blank the maindisplay window 
+        Blank the maindisplay window
 
     ``maindisplay_hide``
-        Hide the maindisplay window 
+        Hide the maindisplay window
 
     ``maindisplay_show``
-        Return the maindisplay window 
+        Return the maindisplay window
 
     ``maindisplay_active``
         The maindisplay has been made active
-    
+
     ``maindisplay_status_text``
         Changes the bottom status bar text on the maindisplay window
 
@@ -193,9 +193,17 @@ class EventReceiver(QtCore.QObject):
     ``{plugin}_add_service_item``
         Ask the plugin to push the selected items to the service item
 
+    ``{plugin}_service_load``
+        Ask the plugin to process an individual service item after it has been
+        loaded
+
+    ``service_item_update``
+        Passes back to the service manager the service item after it has been
+        processed by the plugin
+
     ``alerts_text``
         Displays an alert message
-    
+
     ``bibles_nobook``
         Attempt to find book resulted in no match
 

openlp/core/lib/mediamanageritem.py

@@ -32,7 +32,8 @@ import os
 from PyQt4 import QtCore, QtGui
 
 from openlp.core.lib import context_menu_action, context_menu_separator, \
-    SettingsManager, OpenLPToolbar, ServiceItem, build_icon, translate
+    SettingsManager, OpenLPToolbar, ServiceItem, build_icon, translate, \
+    Receiver
 
 log = logging.getLogger(__name__)
 
@@ -119,6 +120,9 @@ class MediaManagerItem(QtGui.QWidget):
         self.requiredIcons()
         self.setupUi()
         self.retranslateUi()
+        QtCore.QObject.connect(Receiver.get_receiver(),
+            QtCore.SIGNAL(u'%s_service_load' % self.parent.name.lower()),
+            self.serviceLoad)
 
     def requiredIcons(self):
         """
@@ -540,3 +544,11 @@ class MediaManagerItem(QtGui.QWidget):
             return service_item
         else:
             return None
+
+    def serviceLoad(self, message):
+        """
+        Method to add processing when a service has been loaded and
+        individual service items need to be processed by the plugins
+        """
+        pass
+

openlp/core/lib/serviceitem.py

@@ -58,6 +58,9 @@ class ItemCapabilities(object):
     AllowsLoop = 5
     AllowsAdditions = 6
     NoLineBreaks = 7
+    OnLoadUpdate = 8
+    AddIfNewItem = 9
+
 
 class ServiceItem(object):
     """
@@ -98,6 +101,7 @@ class ServiceItem(object):
         self.main = None
         self.footer = None
         self.bg_image_bytes = None
+        self._new_item()
 
     def _new_item(self):
         """

openlp/core/ui/servicemanager.py

@@ -223,6 +223,8 @@ class ServiceManager(QtGui.QWidget):
             QtCore.SIGNAL(u'config_updated'), self.regenerateServiceItems)
         QtCore.QObject.connect(Receiver.get_receiver(),
             QtCore.SIGNAL(u'theme_update_global'), self.themeChange)
+        QtCore.QObject.connect(Receiver.get_receiver(),
+            QtCore.SIGNAL(u'service_item_update'), self.serviceItemUpdate)
         # Last little bits of setting up
         self.service_theme = unicode(QtCore.QSettings().value(
             self.parent.serviceSettingsSection + u'/service theme',
@@ -711,6 +713,9 @@ class ServiceManager(QtGui.QWidget):
                         serviceitem.set_from_service(item, self.servicePath)
                         self.validateItem(serviceitem)
                         self.addServiceItem(serviceitem)
+                        if serviceitem.is_capable(ItemCapabilities.OnLoadUpdate):
+                            Receiver.send_message(u'%s_service_load' %
+                                serviceitem.name.lower(), serviceitem)
                     try:
                         if os.path.isfile(p_file):
                             os.remove(p_file)
@@ -801,6 +806,14 @@ class ServiceManager(QtGui.QWidget):
             # does not impact the saved song so True may also be valid
             self.parent.serviceChanged(False, self.serviceName)
 
+    def serviceItemUpdate(self, message):
+        """
+        Triggered from plugins to update service items.
+        """
+        print message
+        for item in self.serviceItems:
+            print item[u'service_item'].title, item[u'service_item']._uuid
+
     def addServiceItem(self, item, rebuild=False, expand=True, replace=False):
         """
         Add a Service item to the list
@@ -817,7 +830,7 @@ class ServiceManager(QtGui.QWidget):
             self.repaintServiceList(sitem + 1, 0)
             self.parent.LiveController.replaceServiceManagerItem(item)
         else:
-            #nothing selected for dnd
+            # nothing selected for dnd
             if self.droppos == 0:
                 if isinstance(item, list):
                     for inditem in item:
@@ -834,7 +847,7 @@ class ServiceManager(QtGui.QWidget):
                     u'order': self.droppos,
                     u'expanded':expand})
                 self.repaintServiceList(self.droppos, 0)
-            #if rebuilding list make sure live is fixed.
+            # if rebuilding list make sure live is fixed.
             if rebuild:
                 self.parent.LiveController.replaceServiceManagerItem(item)
         self.droppos = 0
@@ -914,7 +927,7 @@ class ServiceManager(QtGui.QWidget):
             else:
                 pos = parentitem.data(0, QtCore.Qt.UserRole).toInt()[0]
                 count = item.data(0, QtCore.Qt.UserRole).toInt()[0]
-        #adjust for zero based arrays
+        # adjust for zero based arrays
         pos = pos - 1
         return pos, count
 
@@ -940,7 +953,7 @@ class ServiceManager(QtGui.QWidget):
         if link.hasText():
             plugin = event.mimeData().text()
             item = self.serviceManagerList.itemAt(event.pos())
-            #ServiceManager started the drag and drop
+            # ServiceManager started the drag and drop
             if plugin == u'ServiceManager':
                 startpos, startCount = self.findServiceItem()
                 if item is None:
@@ -952,22 +965,22 @@ class ServiceManager(QtGui.QWidget):
                 self.serviceItems.insert(endpos, serviceItem)
                 self.repaintServiceList(endpos, startCount)
             else:
-                #we are not over anything so drop
+                # we are not over anything so drop
                 replace = False
                 if item is None:
                     self.droppos = len(self.serviceItems)
                 else:
-                    #we are over somthing so lets investigate
+                    # we are over somthing so lets investigate
                     pos = self._getParentItemData(item) - 1
                     serviceItem = self.serviceItems[pos]
                     if (plugin == serviceItem[u'service_item'].name and
                         serviceItem[u'service_item'].is_capable(
                         ItemCapabilities.AllowsAdditions)):
                         action = self.dndMenu.exec_(QtGui.QCursor.pos())
-                        #New action required
+                        # New action required
                         if action == self.newAction:
                             self.droppos = self._getParentItemData(item)
-                        #Append to existing action
+                        # Append to existing action
                         if action == self.addToAction:
                             self.droppos = self._getParentItemData(item)
                             item.setSelected(True)

openlp/plugins/songs/lib/mediaitem.py

@@ -324,6 +324,8 @@ class SongMediaItem(MediaManagerItem):
         service_item.add_capability(ItemCapabilities.AllowsEdit)
         service_item.add_capability(ItemCapabilities.AllowsPreview)
         service_item.add_capability(ItemCapabilities.AllowsLoop)
+        service_item.add_capability(ItemCapabilities.OnLoadUpdate)
+        service_item.add_capability(ItemCapabilities.AddIfNewItem)
         song = self.parent.manager.get_object(Song, item_id)
         service_item.theme = song.theme_name
         service_item.editId = item_id
@@ -371,3 +373,10 @@ class SongMediaItem(MediaManagerItem):
             song.title, author_audit, song.copyright, unicode(song.ccli_number)
         ]
         return True
+
+    def serviceLoad(self, item):
+        """
+        Triggered by a song being loaded by the service item
+        """
+        Receiver.send_message(u'service_item_update', u'0:0')
+