add data.py for web module and sending data via ws connection

src/blenderbim/blenderbim/bim/handler.py

@@ -191,6 +191,8 @@ def refresh_ui_data():
         tool.Ifc.get().clear_cache()
 
     bpy.context.scene.DocProperties.should_draw_decorations = bpy.context.scene.DocProperties.should_draw_decorations
+    if bpy.context.scene.WebProperties.is_connected:
+        tool.Web.send_webui_data()
 
 
 @persistent

src/blenderbim/blenderbim/bim/module/web/data.py

@@ -0,0 +1,40 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import bpy
+import blenderbim.tool as tool
+
+
+def refresh():
+    WebData.is_loaded = False
+
+
+class WebData:
+    data = {}
+    is_loaded = False
+
+    @classmethod
+    def load(cls):
+        cls.data = {
+            "IFC_File": cls.ifc_file_name(),
+        }
+        cls.is_loaded = True
+
+    @classmethod
+    def ifc_file_name(cls):
+        return bpy.context.scene.BIMProperties.ifc_file

src/blenderbim/blenderbim/bim/module/web/ui.py

@@ -17,6 +17,7 @@
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
 
 from bpy.types import Panel
+from blenderbim.bim.module.web.data import WebData
 
 
 class BIM_PT_webui(Panel):
@@ -29,6 +30,10 @@ class BIM_PT_webui(Panel):
     bl_parent_id = "BIM_PT_tab_collaboration"
 
     def draw(self, context):
+
+        if not WebData.is_loaded:
+            WebData.load()
+
         layout = self.layout
 
         scene = context.scene

src/blenderbim/blenderbim/tool/web.py

@@ -17,9 +17,8 @@
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
 
 import bpy
-import json
+from blenderbim.bim.module.web.data import WebData
 import blenderbim.core.tool
-from typing import Union, Literal
 import socket
 import os
 import subprocess
@@ -27,8 +26,6 @@ import webbrowser
 import asyncio
 import socketio
 import threading
-import json
-
 
 sio = None
 ws_process = None
@@ -79,6 +76,7 @@ class Web(blenderbim.core.tool.Web):
         ws_url = f"ws://localhost:{port}/blender"
         ws_thread.run_coro(cls.sio_connect(ws_url))
         cls.set_is_connected(True)
+        cls.send_webui_data()
 
     @classmethod
     def disconnect_websocket_server(cls):
@@ -110,14 +108,11 @@ class Web(blenderbim.core.tool.Web):
     @classmethod
     def send_webui_data(cls):
         global ws_thread
-        data = cls.get_webui_data()
-        ws_thread.run_coro(cls.sio_send(data))
 
-    @classmethod
+        if not WebData.is_loaded:
-    def get_webui_data(cls):
+            WebData.load()
-        data = {}
+
-        data["ifc_file"] = bpy.context.scene.BIMProperties.ifc_file
+        ws_thread.run_coro(cls.sio_send(WebData.data))
-        return json.dumps(data)
 
     @classmethod
     def open_web_browser(cls, port):