Move message box function to util, show message on network error

mtg-collector/gui.py

@@ -16,6 +16,8 @@ class MainWindow(Gtk.Window):
         # Load local image Data
         util.reload_image_cache()
         util.load_mana_icons()
+        # Set reference to main window in util
+        util.window = self
 
         self.notebook = Gtk.Notebook()
         self.add(self.notebook)
@@ -33,7 +35,6 @@ class MainWindow(Gtk.Window):
         self.notebook.append_page(self.collectionView, Gtk.Label("Collection"))
         self.notebook.append_page(self.deckView, Gtk.Label("Decks"))
 
-
 win = MainWindow()
 win.connect('delete-event', Gtk.main_quit)
 GObject.threads_init()

mtg-collector/search.py

@@ -1,3 +1,5 @@
+from urllib.error import URLError
+
 import gi
 from gi.repository import Pango
 import util
@@ -13,7 +15,6 @@ class SearchView(Gtk.Grid):
     def __init__(self):
         Gtk.Grid.__init__(self)
         self.set_column_spacing(5)
-
         # Search Box
         self.searchbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=5,
                                  margin_end=5, margin_start=5, margin_top=5, margin_bottom=5)
@@ -117,7 +118,7 @@ class SearchView(Gtk.Grid):
 
     def do_show_no_results(self, searchterm):
         # Should move to main UI, so parent can be used
-        dialog = Gtk.MessageDialog(None, 0, Gtk.MessageType.INFO,
+        dialog = Gtk.MessageDialog(self.parent, 0, Gtk.MessageType.INFO,
                                    Gtk.ButtonsType.OK, "No Results")
         dialog.format_secondary_text("No cards with name \"" + searchterm + "\" were found")
         dialog.run()
@@ -147,19 +148,30 @@ class SearchView(Gtk.Grid):
     def load_cards(self):
         # Get search term
         term = self.searchEntry.get_text()
-        print("Search for \"" + term + "\" online.")
         # Lock down search controls
         GObject.idle_add(self.do_activate_controls, False, priorty=GObject.PRIORITY_DEFAULT)
         # Get filter rules
         colorlist = self.get_color_filter()
+
         # Load card info from internet
+        print("\nStart online search")
+        try:
             self.cards = Card.where(name=term)\
                 .where(colorIdentity=','.join(colorlist))\
                 .where(pageSize=50)\
                 .where(page=1).all()
+        except URLError as err:
+            print("Error connecting to the internet")
+            GObject.idle_add(util.show_message, "Connection Error", str(err.reason), priority=GObject.PRIORITY_DEFAULT)
+            GObject.idle_add(self.do_activate_controls, True, priorty=GObject.PRIORITY_DEFAULT)
+            return
 
+        print("Done. Found " + str(len(self.cards)) + " cards")
         if len(self.cards) == 0:
-            GObject.idle_add(self.do_show_no_results, term, priority=GObject.PRIORITY_DEFAULT)
+            messagetext = "No cards with name \"" + term + "\" found"
+            GObject.idle_add(util.show_message, "No Results", messagetext, priority=GObject.PRIORITY_DEFAULT)
+            # Reactivate search controls
+            GObject.idle_add(self.do_activate_controls, True, priority=GObject.PRIORITY_DEFAULT)
             return
 
         # Remove duplicate entries

mtg-collector/util.py

@@ -3,14 +3,21 @@ import gi
 import re
 import config
 gi.require_version('Gtk', '3.0')
-from gi.repository import GdkPixbuf
+from gi.repository import GdkPixbuf, Gtk
 from PIL import Image as PImage
 from urllib import request
 
 # Loacally stored images for faster loading times
 imagecache = []
 manaicons ={}
+window = None
 
+def show_message(title, message):
+    dialog = Gtk.MessageDialog(window, 0, Gtk.MessageType.INFO,
+                               Gtk.ButtonsType.OK, title)
+    dialog.format_secondary_text(message)
+    dialog.run()
+    dialog.destroy()
 
 def load_mana_icons():
     path = os.path.dirname(__file__) + "/resources/mana_icons/"
@@ -55,7 +62,6 @@ def load_card_image(card, sizex, sizey):
     for image in imagecache:
         filename = os.path.basename(image.filename)
         if filename == card.multiverse_id.__str__() + ".PNG":
-            print("Using local file for image: " + filename)
             return GdkPixbuf.Pixbuf.new_from_file_at_size(image.filename, sizex, sizey)
 
     # No file in local cache found