重构pipeline的UI架构,支持后续pipeline的动态拓展

web/pipelines/demo.py

@@ -0,0 +1,69 @@
+# Copyright (C) 2025 AIDC-AI
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#     http://www.apache.org/licenses/LICENSE-2.0
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+Demo Pipeline UI
+
+Implements a custom layout for the Demo Pipeline.
+"""
+
+import streamlit as st
+from typing import Any
+from web.i18n import tr
+
+from web.pipelines.base import PipelineUI, register_pipeline_ui
+
+
+class DemoPipelineUI(PipelineUI):
+    """
+    Demo UI to verify the full-page plugin system.
+    Uses a completely different layout (2 columns).
+    """
+    name = "demo"
+    icon = "✨"
+    
+    @property
+    def display_name(self):
+        return tr("pipeline.demo.name")
+        
+    @property
+    def description(self):
+        return tr("pipeline.demo.description")
+    
+    def render(self, pixelle_video: Any):
+        st.markdown("### ✨ Demo Pipeline Custom Layout")
+        st.info("This pipeline uses a custom 2-column layout, demonstrating full UI control.")
+        
+        col1, col2 = st.columns([2, 1])
+        
+        with col1:
+            with st.container(border=True):
+                st.subheader("1. Input")
+                topic = st.text_input("Enter Topic", placeholder="e.g. AI News")
+                mood = st.selectbox("Mood", ["Happy", "Serious", "Funny"])
+                
+                st.markdown("---")
+                st.subheader("2. Settings")
+                # Simplified settings for demo
+                n_scenes = st.slider("Scenes", 3, 10, 5)
+        
+        with col2:
+            with st.container(border=True):
+                st.subheader("3. Generate")
+                if st.button("🚀 Generate Demo Video", type="primary", use_container_width=True):
+                    # Mock generation logic or call backend
+                    st.success(f"Generating video for '{topic}' ({mood}) with {n_scenes} scenes...")
+                    st.balloons()
+
+
+# Register self
+register_pipeline_ui(DemoPipelineUI)