src/ovtk_audiencekit/plugins/builtins/Scene/Plugin.py

@@ -14,6 +14,7 @@ from ovtk_audiencekit.utils import format_exception
 class Scene:
     name: str
     group: str
+    oneshot: bool
     enter: Callable
     exit: Callable
     entry_context: dict = field(default_factory=dict)
@@ -35,16 +36,16 @@ class ScenePlugin(PluginBase):
         self.blueprint.add_url_rule('/<name>/<cmd>', 'api-sceneset', self.ui_setscene)
         self.blueprint.add_url_rule('/monitor', 'monitor', self.ui_monitor_ws, is_websocket=True)
 
-    async def run(self, name, _children=None, _ctx={}, active=None, group=None, immediate=True, **kwargs):
+    async def run(self, name, _children=None, _ctx={}, active=None, group=None, immediate=True, oneshot=False, **kwargs):
         if _children is None and active is None:
             raise UsageError('Either define a new scene or set `--active` to true / false')
 
         if _children:
-            await self.define(name, group, _children, default_active=active, ctx=_ctx)
+            await self.define(name, group, _children, default_active=active, oneshot=oneshot, ctx=_ctx)
         else:
             await self.switch(name, active, is_immediate=immediate, ctx=_ctx)
 
-    async def define(self, name, group, children, default_active=False, ctx={}):
+    async def define(self, name, group, children, default_active=False, oneshot=False, ctx={}):
         if self.scenes.get(name) is not None:
             raise UsageError(f'Scene with name "{name}" already exists!')
 
@@ -63,7 +64,7 @@ class ScenePlugin(PluginBase):
         async def exit(ctx):
             await self.execute_kdl(exit_nodes, _ctx=ctx)
 
-        scene = Scene(name, group, enter, exit)
+        scene = Scene(name, group, oneshot, enter, exit)
         self.scenes[name] = scene
 
         if default_active:
@@ -74,7 +75,9 @@ class ScenePlugin(PluginBase):
         if scene is None:
             raise UsageError(f'No defined scene with name "{name}"')
 
-        if active:
+        if scene.oneshot:
+            await self._execute(scene, 'enter', is_immediate, ctx)
+        elif active:
             if current := self.active.get(scene.group):
                 if current == scene:
                     return

src/ovtk_audiencekit/plugins/builtins/Scene/templates/index.html

@@ -24,8 +24,10 @@
             })
           })
           const toggle = async (group_name, scene_name) => {
-            if (inflight.value.includes(scene_name)) return
-            inflight.value.push(scene_name)
+            if (!groups.value[group_name][scene_name].oneshot) {
+              if (inflight.value.includes(scene_name)) return
+              inflight.value.push(scene_name)
+            }
             const next_state = !groups.value[group_name][scene_name]
             await fetch(`${scene_name}/${next_state ? 'activate' : 'deactivate'}`, { method: 'GET' })
           }