Updated emoji loading to be faster; added auto fill option

src/core/widgets/emoji_popover.py

@@ -1,11 +1,13 @@
 # Python imports
-from collections import defaultdict
 import json
+import asyncio
+from collections import defaultdict
 
 # Lib imports
 import gi
 gi.require_version('Gtk', '3.0')
 from gi.repository import Gtk
+from gi.repository import GLib
 
 # Application imports
 from .key import Key
@@ -19,7 +21,7 @@ class Emoji_Notebook(Gtk.Notebook):
     def __init__(self):
         super(Emoji_Notebook, self).__init__()
 
-        self.load_ui( self.get_data(EMOJI_FILE) )
+        self.load_ui()
 
         self.setup_styling()
         self.show_all()
@@ -29,26 +31,52 @@ class Emoji_Notebook(Gtk.Notebook):
         self.set_current_page(0)
         self.set_scrollable(True)
 
-    def get_data(self, file):
-        emoji_grouping = defaultdict(list)
-
-        with open(file, 'r') as f:
+    @daemon_threaded
+    def load_ui(self):
+        emoji_data = None
+        with open(EMOJI_FILE, 'r') as f:
             emoji_data = json.load(f)
-            for emoji in emoji_data:
-                category = emoji['category']
-                del emoji['category']
-                del emoji['unicode_version']
-                del emoji['ios_version']
-                emoji_grouping[category].append(emoji)
+
+        if not emoji_data:
+            print("No emoji data found in file...")
+            return
+
+        try:
+            loop = asyncio.get_running_loop()
+        except RuntimeError:
+            loop = None
+
+        if loop and loop.is_running():
+            loop = asyncio.get_event_loop()
+            loop.create_task( self._async_load_ui(emoji_data) )
+        else:
+            asyncio.run( self._async_load_ui(emoji_data) )
+
+    async def _async_load_ui(self, emoji_data):
+        emoji_grouping = await self._get_emoji_grouping(emoji_data)
+        GLib.idle_add(self._populate_ui, emoji_grouping)
+
+    async def _get_emoji_grouping(self, emoji_data):
+        emoji_grouping = defaultdict(list)
+        async def add_to_group(emoji):
+            category      = emoji['category']
+            key           = Key( emoji["emoji"], emoji["emoji"] )
+            key._is_emoji = True
+
+            emoji_grouping[category].append(key)
+
+        tasks = [ add_to_group(emoji) for emoji in emoji_data]
+        await asyncio.gather(*tasks)
 
         return emoji_grouping
 
-    def load_ui(self, emoji_grouping):
+    def _populate_ui(self, emoji_grouping):
         width  = 1
         height = 1
         for group in emoji_grouping:
             tab_widget   = Gtk.Label(label=group)
             scroll, grid = self.create_scroll_and_grid()
+
             self.append_page(scroll, tab_widget)
             self.set_tab_reorderable(scroll, False)
             self.set_tab_detachable(scroll, False)
@@ -56,16 +84,15 @@ class Emoji_Notebook(Gtk.Notebook):
             top  = 0
             left = 0
             for emoji in emoji_grouping[group]:
-                key = Key(emoji["emoji"], emoji["emoji"])
-                key._is_emoji = True
-                key.show()
-                grid.attach(key, left, top, width, height)
+                grid.attach(emoji, left, top, width, height)
 
                 left += 1
                 if left > 8:
                     left = 0
                     top += 1
 
+        self.show_all()
+        del emoji_grouping
 
     def create_scroll_and_grid(self):
         scroll = Gtk.ScrolledWindow()
@@ -114,4 +141,4 @@ class Emoji_Popover(Gtk.Popover):
         self.popup()
 
     def hide_emoji_view(self):
-        self.popdown()
+        self.popdown()