Slight protocol optimization

Author: FeodorFitsner

sdk/python/flet/protocol.py

@@ -8,13 +8,18 @@ def default(self, obj):
         if isinstance(obj, Message):
             return obj.__dict__
         elif isinstance(obj, Command):
-            return {
-                "i": obj.indent,
-                "n": obj.name,
-                "v": obj.values,
-                "a": obj.attrs,
-                "c": obj.commands,
-            }
+            d = {}
+            if obj.indent > 0:
+                d["i"] = obj.indent
+            if obj.name != None:
+                d["n"] = obj.name
+            if obj.values and len(obj.values) > 0:
+                d["v"] = obj.values
+            if obj.attrs and len(obj.attrs) > 0:
+                d["a"] = obj.attrs
+            if obj.commands and len(obj.commands) > 0:
+                d["c"] = obj.commands
+            return d
         elif isinstance(obj, object):
             return obj.__dict__
         return json.JSONEncoder.default(self, obj)

sdk/python/playground/counter.py

@@ -56,10 +56,10 @@ def on_click(e):
 
 
 flet.app(
-    name="test1",
+    name="test2",
     port=8550,
     target=main,
     view=flet.WEB_BROWSER,
     # assets_dir="assets"
-    assets_dir="C:\\Projects\\flet-dev\\flet\\client\\build\\web",
+    # assets_dir="C:\\Projects\\flet-dev\\flet\\client\\build\\web",
 )

sdk/python/playground/dialog-test.py

@@ -1,13 +1,9 @@
 import logging
-from ctypes import alignment
-from datetime import datetime
 from time import sleep
-from tkinter import Button
 
 import flet
-from flet import Page, TextButton, alignment, border, border_radius, colors, padding
+from flet import Page, TextButton
 from flet.alert_dialog import AlertDialog
-from flet.container import Container
 from flet.elevated_button import ElevatedButton
 from flet.text import Text
 

sdk/python/playground/textfield-test.py

@@ -36,17 +36,17 @@ def main(page: Page):
     page.theme_mode = "light"
     page.padding = padding.all(20)
 
-    prgb = ProgressBar(visible=False)
+    page.splash = ProgressBar(visible=False)
 
     def chat_submit(e):
         print(f"Submit FieldText: {e.control.value}")
         e.control.value = ""
         form.disabled = True
-        prgb.visible = True
+        page.splash.visible = True
         page.update()
         sleep(2)
         form.disabled = False
-        prgb.visible = False
+        page.splash.visible = False
         page.update()
 
     chat_input = TextField(
@@ -59,7 +59,6 @@ def chat_submit(e):
 
     form = Column(
         [
-            prgb,
             Text("Outlined TextField", style="headlineMedium"),
             TextField(),
             Text(