Continue Blender Web parity task handoff

tools/web/.tmp-driver-button-ui-experiment.py

@@ -0,0 +1,65 @@
+import json
+import pathlib
+import sys
+
+import bpy
+
+
+FIXTURE = pathlib.Path(sys.argv[sys.argv.index("--") + 1]).resolve()
+REPORT = pathlib.Path(sys.argv[sys.argv.index("--") + 2]).resolve()
+OUTPUT = pathlib.Path(sys.argv[sys.argv.index("--") + 3]).resolve()
+
+
+class DriverButtonPanel(bpy.types.Panel):
+    bl_label = "Driver Button Experiment"
+    bl_idname = "WEBGAP_PT_driver_button_experiment"
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "object"
+    bl_order = -1000
+
+    def draw(self, context):
+        self.layout.prop(context.object, '["drive_target"]', text="drive_target")
+
+
+bpy.utils.register_class(DriverButtonPanel)
+
+
+def driver_report(obj):
+    if obj is None or obj.animation_data is None:
+        return []
+    return [
+        {
+            "path": curve.data_path,
+            "index": curve.array_index,
+            "expression": curve.driver.expression if curve.driver else "",
+        }
+        for curve in obj.animation_data.drivers
+    ]
+
+
+def poll_driver():
+    current = driver_report(obj)
+    if current:
+        REPORT.write_text(json.dumps({"drivers": current}, indent=2) + "\n", encoding="utf-8")
+        bpy.ops.wm.save_as_mainfile(filepath=str(OUTPUT), check_existing=False, compress=True)
+        return None
+    return 0.25
+
+
+bpy.ops.wm.open_mainfile(filepath=str(FIXTURE), load_ui=False)
+obj = bpy.data.objects.get("WebGapAnimDriverButtonAddObject")
+
+
+def setup_ui():
+    window = bpy.context.window
+    if window is None:
+        return 0.25
+    screen = window.screen
+    area = next(candidate for candidate in screen.areas if candidate.type == "PROPERTIES")
+    area.spaces.active.context = "OBJECT"
+    bpy.app.timers.register(poll_driver, first_interval=0.5)
+    return None
+
+
+bpy.app.timers.register(setup_ui, first_interval=0.5)