Fix taking screenshots while using powerpoint or impress.

Fix traceback when expanding and collapsing songs.
In _process_item, postpone check for _reset_blank, since the service_item can change type while being execute (Pdf->Image). For the same reason always use the serviceitem that might have been converted.
Fix crash when sending Pdf live.
Pep8 fixes

bzr-revno: 2607
Fixes: https://launchpad.net/bugs/1532169, https://launchpad.net/bugs/1532938

openlp/core/ui/servicemanager.py

@@ -1131,6 +1131,8 @@ class ServiceManager(OpenLPMixin, RegistryMixin, QtWidgets.QWidget, Ui_ServiceMa
         :param item: The service item to be checked
         """
         pos = item.data(0, QtCore.Qt.UserRole)
+        # Only set root items as collapsed, and since we only have 2 levels we find them by checking for children
+        if item.childCount():
             self.service_items[pos - 1]['expanded'] = False
 
     def on_expand_all(self, field=None):
@@ -1149,6 +1151,8 @@ class ServiceManager(OpenLPMixin, RegistryMixin, QtWidgets.QWidget, Ui_ServiceMa
         :param item: The service item to be checked
         """
         pos = item.data(0, QtCore.Qt.UserRole)
+        # Only set root items as expanded, and since we only have 2 levels we find them by checking for children
+        if item.childCount():
             self.service_items[pos - 1]['expanded'] = True
 
     def on_service_top(self, field=None):

openlp/core/ui/slidecontroller.py

@@ -828,13 +828,13 @@ class SlideController(DisplayController, RegistryProperties):
         self.selected_row = 0
         # take a copy not a link to the servicemanager copy.
         self.service_item = copy.copy(service_item)
+        if self.service_item.is_command():
+            Registry().execute(
+                '%s_start' % service_item.name.lower(), [self.service_item, self.is_live, self.hide_mode(), slide_no])
         # Reset blanking if needed
         if old_item and self.is_live and (old_item.is_capable(ItemCapabilities.ProvidesOwnDisplay) or
                                           self.service_item.is_capable(ItemCapabilities.ProvidesOwnDisplay)):
             self._reset_blank(self.service_item.is_capable(ItemCapabilities.ProvidesOwnDisplay))
-        if service_item.is_command():
-            Registry().execute(
-                '%s_start' % service_item.name.lower(), [self.service_item, self.is_live, self.hide_mode(), slide_no])
         self.info_label.setText(self.service_item.title)
         self.slide_list = {}
         if self.is_live:
@@ -886,28 +886,28 @@ class SlideController(DisplayController, RegistryProperties):
                     self.service_item.bg_image_bytes = \
                         self.image_manager.get_image_bytes(frame['path'], ImageSource.ImagePlugin)
         self.preview_widget.replace_service_item(self.service_item, width, slide_no)
-        self.enable_tool_bar(service_item)
+        self.enable_tool_bar(self.service_item)
         # Pass to display for viewing.
         # Postpone image build, we need to do this later to avoid the theme
         # flashing on the screen
         if not self.service_item.is_image():
             self.display.build_html(self.service_item)
-        if service_item.is_media():
+        if self.service_item.is_media():
-            self.on_media_start(service_item)
+            self.on_media_start(self.service_item)
         self.slide_selected(True)
-        if service_item.from_service:
+        if self.service_item.from_service:
             self.preview_widget.setFocus()
         if old_item:
             # Close the old item after the new one is opened
             # This avoids the service theme/desktop flashing on screen
             # However opening a new item of the same type will automatically
             # close the previous, so make sure we don't close the new one.
-            if old_item.is_command() and not service_item.is_command() or \
+            if old_item.is_command() and not self.service_item.is_command() or \
-                    old_item.is_command() and not old_item.is_media() and service_item.is_media():
+                    old_item.is_command() and not old_item.is_media() and self.service_item.is_media():
                 Registry().execute('%s_stop' % old_item.name.lower(), [old_item, self.is_live])
-            if old_item.is_media() and not service_item.is_media():
+            if old_item.is_media() and not self.service_item.is_media():
                 self.on_media_close()
-        Registry().execute('slidecontroller_%s_started' % self.type_prefix, [service_item])
+        Registry().execute('slidecontroller_%s_started' % self.type_prefix, [self.service_item])
 
     def on_slide_selected_index(self, message):
         """
@@ -1138,8 +1138,9 @@ class SlideController(DisplayController, RegistryProperties):
         Creates an image of the current screen and updates the preview frame.
         """
         win_id = QtWidgets.QApplication.desktop().winId()
+        screen = QtWidgets.QApplication.primaryScreen()
         rect = self.screens.current['size']
-        win_image = QtGui.QScreen.grabWindow(win_id, rect.x(), rect.y(), rect.width(), rect.height())
+        win_image = screen.grabWindow(win_id, rect.x(), rect.y(), rect.width(), rect.height())
         win_image.setDevicePixelRatio(self.slide_preview.devicePixelRatio())
         self.slide_preview.setPixmap(win_image)
         self.slide_image = win_image

openlp/plugins/presentations/lib/messagelistener.py

@@ -349,6 +349,7 @@ class MessageListener(object):
             # When presenting PDF/XPS/OXPS, we are using the image presentation code,
             # so handler & processor is set to None, and we skip adding the handler.
             self.handler = None
+        else:
             if self.handler == self.media_item.automatic:
                 self.handler = self.media_item.find_controller_by_type(file)
                 if not self.handler:

tests/functional/openlp_core_lib/test_htmlbuilder.py

@@ -368,4 +368,3 @@ class Htmbuilder(TestCase, TestMixin):
         # WHEN: Retrieving the webkit version
         # THEN: Webkit versions should match
         self.assertEquals(webkit_version(), webkit_ver, "The returned webkit version doesn't match the installed one")
-

tests/functional/openlp_core_ui/test_mainwindow.py

@@ -189,5 +189,3 @@ class TestMainWindow(TestCase, TestMixin):
             # THEN: The media manager dock is made visible
             self.assertEqual(0, mocked_media_manager_dock.setVisible.call_count)
             mocked_widget.on_focus.assert_called_with()
-
-

tests/functional/openlp_plugins/presentations/test_messagelistener.py

@@ -104,3 +104,23 @@ class TestMessageListener(TestCase, TestMixin):
 
         # THEN: The controllers will be setup.
         self.assertTrue(len(controllers), 'We have loaded a controller')
+
+    @patch('openlp.plugins.presentations.lib.mediaitem.MessageListener._setup')
+    def start_pdf_presentation_test(self, media_mock):
+        """
+        Test the startup of pdf presentation succeed.
+        """
+        # GIVEN: A sservice item with a pdf
+        mock_item = MagicMock()
+        mock_item.processor = 'Pdf'
+        mock_item.get_frame_path.return_value = "test.pdf"
+        self.media_item.generate_slide_data = MagicMock()
+        ml = MessageListener(self.media_item)
+        ml.media_item = self.media_item
+        ml.preview_handler = MagicMock()
+
+        # WHEN: request the presentation to start
+        ml.startup([mock_item, False, False, False])
+
+        # THEN: The handler should be set to None
+        self.assertIsNone(ml.handler, 'The handler should be None')

tests/resources/projector/data.py

@@ -59,4 +59,3 @@ TEST3_DATA = dict(ip='333.333.333.333',
                   name='___TEST_THREE___',
                   location='location three',
                   notes='notes three')
-