| 1 | # Copyright (C) 2025 AIDC-AI |
| 2 | # |
| 3 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | # you may not use this file except in compliance with the License. |
| 5 | # You may obtain a copy of the License at |
| 6 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 7 | # Unless required by applicable law or agreed to in writing, software |
| 8 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 9 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 10 | # See the License for the specific language governing permissions and |
| 11 | # limitations under the License. |
| 12 | |
| 13 | """ |
| 14 | Header components for web UI |
| 15 | """ |
| 16 | |
| 17 | import streamlit as st |
| 18 | |
| 19 | from web.i18n import tr, get_available_languages, set_language |
| 20 | from web.utils.streamlit_helpers import safe_rerun |
| 21 | |
| 22 | |
| 23 | def render_header(): |
| 24 | """Render page header with title and language selector""" |
| 25 | col1, col2 = st.columns([4, 1]) |
| 26 | with col1: |
| 27 | st.markdown(f"<h3>{tr('app.title')}</h3>", unsafe_allow_html=True) |
| 28 | with col2: |
| 29 | render_language_selector() |
| 30 | |
| 31 | |
| 32 | def render_language_selector(): |
| 33 | """Render language selector at the top""" |
| 34 | languages = get_available_languages() |
| 35 | lang_options = [f"{code} - {name}" for code, name in languages.items()] |
| 36 | |
| 37 | current_lang = st.session_state.get("language", "zh_CN") |
| 38 | current_index = list(languages.keys()).index(current_lang) if current_lang in languages else 0 |
| 39 | |
| 40 | selected = st.selectbox( |
| 41 | tr("language.select"), |
| 42 | options=lang_options, |
| 43 | index=current_index, |
| 44 | label_visibility="collapsed" |
| 45 | ) |
| 46 | |
| 47 | selected_code = selected.split(" - ")[0] |
| 48 | if selected_code != current_lang: |
| 49 | st.session_state.language = selected_code |
| 50 | set_language(selected_code) |
| 51 | safe_rerun() |
| 52 | |
| 53 |