Better corpus choice.

app.css

@@ -18,3 +18,10 @@ p, div, input, label, h1, h2, h3, h4, h5, h6 {
     background-color: rgba(0, 0, 0, 0);
     border: 0px;
 }
+[data-baseweb="radio"] div [data-testid="stMarkdownContainer"] {
+    padding-right: 8px;
+}
+[data-testid="stPopoverButton"] div {
+    margin-left: 0px;
+    margin-right: 4px;
+}

app.py

@@ -6,20 +6,19 @@ st.markdown(
     f"<style>{open('app.css', 'r').read()}</style>",
     unsafe_allow_html=True)
 
-corpus = ""
-cols = st.columns([3, 3, 3])
-with cols[2]:
-    op = [""]
-    op.extend([f"مثال #{i}" for i in range(len(CORPUSES()))])
-    choice = st.selectbox(
-        label="",
-        options=op)
-    choice_idx = op.index(choice)
-    if choice_idx > 0: corpus = CORPUSES()[choice_idx-1]
-corpus = st.text_area(
-    label="قطعة القراءة",
-    placeholder="أدخل نصا",
-    value=corpus)
+if 'corpus' not in st.session_state:
+    st.session_state.corpus = ""
+cols = st.columns([10, 2])
+with cols[1]:
+    with st.popover("أمثلة", use_container_width=True):
+        options = [f"   مثال {i+1}" for i in range(len(CORPUSES()))]
+        example = st.radio("اختر مثالا", options)
+        st.session_state.corpus = CORPUSES()[options.index(example)]
+with cols[0]:
+    st.session_state.corpus = st.text_area(
+        label="قطعة القراءة",
+        placeholder="أدخل نصا",
+        value=st.session_state.corpus)
 
 @st.cache_resource
 def gen_qa(corpus, qbank_i):
@@ -48,16 +47,17 @@ def answers_toggle():
     st.session_state.answers_visible = not answers_visible()
 
 
-with ThreadPoolExecutor(max_workers=32) as executor:
-    futures = [
-        executor.submit(gen_qa, corpus, qbank_i)
-        for qbank_i in qs()
-    ]
-    results = [future.result() for future in as_completed(futures)]
-    print(results)
+with st.spinner('جاري تحهيز الأسئلة...'):
+    with ThreadPoolExecutor(max_workers=32) as executor:
+        futures = [
+            executor.submit(gen_qa, st.session_state.corpus, qbank_i)
+            for qbank_i in qs()
+        ]
+        results = [future.result() for future in as_completed(futures)]
+        print(results)
 
 for qi, qbank_i in enumerate(qs()):
-    question, answer = gen_qa(corpus, qbank_i)
+    question, answer = gen_qa(st.session_state.corpus, qbank_i)
     answer_is_multiline = answer is not None and '\n' in answer
     with st.container(border=True):
         cols = st.columns([1, 13, 1])
@@ -73,7 +73,6 @@ for qi, qbank_i in enumerate(qs()):
                 label=f"سؤال {qi+1}",
                 value=question,
                 key=f"qq_{qi}",
-                disabled=True,
             )
             if answers_visible():
                 component = st.text_area if answer_is_multiline else st.text_input