fix question

package-lock.json

@@ -30,6 +30,7 @@
         "react-dom": "^18.3.1",
         "react-i18next": "^13.5.0",
         "react-icons": "^4.12.0",
+        "react-intersection-observer": "^9.13.1",
         "react-katex": "^3.0.1",
         "react-latex": "^2.0.0",
         "react-latex-next": "^3.0.0",
@@ -8928,6 +8929,20 @@
         "react": "*"
       }
     },
+    "node_modules/react-intersection-observer": {
+      "version": "9.13.1",
+      "resolved": "https://registry.npmjs.org/react-intersection-observer/-/react-intersection-observer-9.13.1.tgz",
+      "integrity": "sha512-tSzDaTy0qwNPLJHg8XZhlyHTgGW6drFKTtvjdL+p6um12rcnp8Z5XstE+QNBJ7c64n5o0Lj4ilUleA41bmDoMw==",
+      "peerDependencies": {
+        "react": "^15.0.0 || ^16.0.0 || ^17.0.0 || ^18.0.0 || ^19.0.0",
+        "react-dom": "^15.0.0 || ^16.0.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      },
+      "peerDependenciesMeta": {
+        "react-dom": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/react-is": {
       "version": "16.13.1",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-16.13.1.tgz",
@@ -17330,6 +17345,12 @@
       "integrity": "sha512-IBaDuHiShdZqmfc/TwHu6+d6k2ltNCf3AszxNmjJc1KUfXdEeRJOKyNvLmAHaarhzGmTSVygNdyu8/opXv2gaw==",
       "requires": {}
     },
+    "react-intersection-observer": {
+      "version": "9.13.1",
+      "resolved": "https://registry.npmjs.org/react-intersection-observer/-/react-intersection-observer-9.13.1.tgz",
+      "integrity": "sha512-tSzDaTy0qwNPLJHg8XZhlyHTgGW6drFKTtvjdL+p6um12rcnp8Z5XstE+QNBJ7c64n5o0Lj4ilUleA41bmDoMw==",
+      "requires": {}
+    },
     "react-is": {
       "version": "16.13.1",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-16.13.1.tgz",

package.json

@@ -25,6 +25,7 @@
     "react-dom": "^18.3.1",
     "react-i18next": "^13.5.0",
     "react-icons": "^4.12.0",
+    "react-intersection-observer": "^9.13.1",
     "react-katex": "^3.0.1",
     "react-latex": "^2.0.0",
     "react-latex-next": "^3.0.0",

src/Components/LatextInput/LaTeXInput.tsx

@@ -22,12 +22,6 @@ const LaTeXInput = ({name,label,...props}:ILaTeXInput) => {
   const { ShowLatexOption } = useObjectToEdit();
   const [showPreview, setShowPreview] = useState(false) ;
     const value  = getFieldProps(name)?.value
-  const handleChangeInput =
-  (
-    e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement>,
-  ) => {
-    setFieldValue(name,e.target.value);
-  };
   
   const Preview =  parseTextAndLatex(value ?? "") ; 
   
@@ -54,6 +48,12 @@ const LaTeXInput = ({name,label,...props}:ILaTeXInput) => {
     setLatex(item)
     setIsEditModalOpen(true)
   }
+
+  const [curCentValue, setCurrentValue] = useState(value)
+  const handleChangeInput = (e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement>) => {
+    setFieldValue(name, e.target.value);
+    setCurrentValue(e.target.value)
+  };
   return (
     <div className='LaTeXInput'>
 
@@ -69,7 +69,7 @@ const LaTeXInput = ({name,label,...props}:ILaTeXInput) => {
     autoSize={{ minRows: 6, maxRows: 10 }} 
     style={{height:"400px"}}
     onChange={handleChangeInput}
-    value={value}
+    value={curCentValue}
     {...props}
     
   />

src/Components/LatextInput/LaTeXInputMemo.tsx

@@ -21,13 +21,7 @@ const LaTeXInputMemo: React.FC<any> =  React.memo(({ field ,form, label, ...prop
   const { setFieldValue } = form;
 
   const { ShowLatexOption } = useObjectToEdit();
-  const [showPreview, setShowPreview] = useState(false);    
+  const [showPreview, setShowPreview] = useState(false);      
-
-  const handleChangeInput = (e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement>) => {
-    setFieldValue(name, e.target.value);
-  };
-  console.log(name,"name");
-  
   const Preview = parseTextAndLatex(value ?? "");
 
   const onPreviewChange: CheckboxProps['onChange'] = (e) => {
@@ -50,6 +44,15 @@ const LaTeXInputMemo: React.FC<any> =  React.memo(({ field ,form, label, ...prop
     setIsEditModalOpen(true);
   };
 
+  const [curCentValue, setCurrentValue] = useState(value)
+  const handleChangeInput = (e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement>) => {
+    setCurrentValue(e.target.value)
+  };
+  const onBlur = ()=>{
+    
+    setFieldValue(name, curCentValue);
+  }
+
   return (
     <div className='LaTeXInput'>
       <label htmlFor={name} className="text">
@@ -64,7 +67,8 @@ const LaTeXInputMemo: React.FC<any> =  React.memo(({ field ,form, label, ...prop
           autoSize={{ minRows: 6, maxRows: 10 }} 
           style={{ height: "400px" }}
           onChange={handleChangeInput}
-          value={value}
+          value={curCentValue}
+          onBlur={onBlur}
           {...props}
         />
         

src/Pages/Admin/question/Model/Malty/components/Question.tsx

@@ -0,0 +1,67 @@
+import React, { useCallback } from "react";
+import { Choice } from "../../../../../../types/Item";
+import QuestionFIeld from "../QuestionFIeld/QuestionFIeld";
+import Choices from "../ChoiceField/Choices";
+import { FaCirclePlus } from "react-icons/fa6";
+import ValidationField from "../../../../../../Components/ValidationField/ValidationField";
+import MaltySelectTag from "../Tags/MaltySelectTag";
+import { toast } from "react-toastify";
+
+export  const Question: React.FC<any> = React.memo(({ index, data }) => {
+  const { values, setFieldValue, ShowHint, t } = data;
+
+  const handleAddChoice = useCallback((
+    parent_index: number,
+    fromKeyCombination: boolean = false,
+  ) => {
+    setFieldValue(`Questions.[${parent_index}].answers`, [
+      ...(values?.Questions?.[parent_index]?.answers as Choice[]),
+      {
+        answer: null,
+        content_image: null,
+        content: null,
+        isCorrect: 0,
+      },
+    ]);
+
+    if (fromKeyCombination) {
+      toast.success(t("header.new_choice_have_been_added"));
+    }
+  }, [setFieldValue, values, t]);
+  
+  return (
+    <div >
+      <div className="exercise_form QuestionFIeld">
+        <QuestionFIeld setFieldValue={setFieldValue} values={values} key={index} index={index} />
+      </div>
+
+      <Choices setFieldValue={setFieldValue} values={values} parent_index={index} />
+
+      {values?.Questions?.[index]?.answers?.length < 5 && (
+        <p className="add_new_button">
+          <FaCirclePlus
+            onClick={() => handleAddChoice(index)}
+            size={23}
+          />{" "}
+          {t("header.add_new_choice")}
+        </p>
+      )}
+
+      <div className="exercise_form_width">
+        {ShowHint && (
+          <ValidationField
+            className=" "
+            placeholder="_"
+            name={`Questions.${index}.hint`}
+            label="hint_question"
+            type="TextArea"
+            style={{ width: "100%", height: 60, resize: "none" }}
+            autoSize={{ minRows: 2, maxRows: 10 }}
+            showCount={false}
+          />
+        )}
+        <MaltySelectTag parent_index={index} />
+      </div>
+    </div>
+  );
+});

src/Pages/Admin/question/Model/Malty/components/Questions copy 2.tsx

@@ -1,115 +0,0 @@
-import React, { useCallback, useMemo } from 'react';
-import { FixedSizeList as List, areEqual } from 'react-window';
-import { Choice } from '../../../../../../types/Item';
-import QuestionFIeld from '../QuestionFIeld/QuestionFIeld';
-import Choices from '../ChoiceField/Choices';
-import { FaCirclePlus } from 'react-icons/fa6';
-import ValidationField from '../../../../../../Components/ValidationField/ValidationField';
-import MaltySelectTag from '../Tags/MaltySelectTag';
-import { useTranslation } from 'react-i18next';
-import { useObjectToEdit } from '../../../../../../zustand/ObjectToEditState';
-import { toast } from 'react-toastify';
-
-interface QuestionsProps {
-  setFieldValue: (field: string, value: any) => void;
-  values: {
-    Questions: Choice[];
-  };
-}
-
-const Row: React.FC<any> = React.memo(({ index, data }) => {
-  const { values, setFieldValue } = data;
-  const { ShowHint } = useObjectToEdit();
-  const [t] = useTranslation();   
-  
-  const handleAddChoice = useCallback((
-    parent_index: number,
-    fromKeyCombination: boolean = false,
-  ) => {
-    setFieldValue(`Questions.[${parent_index}].answers`, [
-      ...(values?.Questions?.[parent_index]?.answers as Choice[]),
-      {
-        answer: null,
-        content_image: null,
-        content: null,
-        isCorrect: 0,
-      },
-    ]);
-
-    if (fromKeyCombination) {
-      toast.success(t("header.new_choice_have_been_added"));
-    }
-  }, [setFieldValue, values, t]);
-  
-  return (
-    <div key={index}>
-      <div className="exercise_form QuestionFIeld">
-        <QuestionFIeld setFieldValue={setFieldValue} values={values} key={index} index={index} />
-      </div>
-
-      <Choices setFieldValue={setFieldValue} values={values} parent_index={index} />
-
-      {values?.Questions?.[index]?.answers?.length < 5 && (
-        <p className="add_new_button">
-          <FaCirclePlus
-            onClick={() => handleAddChoice(index)}
-            size={23}
-          />{" "}
-          {t("header.add_new_choice")}
-        </p>
-      )}
-
-      <div className="exercise_form_width">
-        {ShowHint && (
-          <ValidationField
-            className=" "
-            placeholder="_"
-            name={`Questions.${index}.hint`}
-            label="hint_question"
-            type="TextArea"
-            style={{ width: "100%", height: 60, resize: "none" }}
-            autoSize={{ minRows: 2, maxRows: 10 }}
-            showCount={false}
-          />
-        )}
-        <MaltySelectTag parent_index={index} />
-      </div>
-    </div>
-  );
-}, areEqual);
-
-const Questions: React.FC<QuestionsProps> = React.memo(({ setFieldValue, values }) => {
-  const questions = values.Questions || [];
-  
-  const itemData = useMemo(() => ({ values, setFieldValue }), [values, setFieldValue]);
-    const itemSize = 1100;
-  const listHeight = useMemo(() => {
-    return Math.min(1300, questions.length * itemSize); // Adjust 400 to your desired max height
-  }, [questions.length]);
-
-  return (
-   <>
-    <List
-      height={listHeight}
-      itemCount={questions.length}
-      itemSize={itemSize}
-      width="100%"
-      itemData={itemData}
-      direction='rtl'
-    >
-      {Row}
-    </List>
-
-{/* {(values?.Questions || [])?.map(
-                (item: Choice, parent_index: number) => {
-                    return (
-                        <Row key={parent_index} index={parent_index} data={{values, setFieldValue}} />
-                );
-            }
-        )} */}
-
-   </>
-  );
-}, (prevProps, nextProps) => prevProps.values.Questions === nextProps.values.Questions);
-
-export default Questions;

src/Pages/Admin/question/Model/Malty/components/Questions copy.tsx

@@ -1,85 +0,0 @@
-import React from 'react'
-import QuestionFIeld from '../QuestionFIeld/QuestionFIeld';
-import { Choice } from '../../../../../../types/Item';
-import Choices from '../ChoiceField/Choices';
-import { FaCirclePlus } from 'react-icons/fa6';
-import ValidationField from '../../../../../../Components/ValidationField/ValidationField';
-import MaltySelectTag from '../Tags/MaltySelectTag';
-import { useObjectToEdit } from '../../../../../../zustand/ObjectToEditState';
-import { toast } from 'react-toastify';
-import { useTranslation } from 'react-i18next';
-
-// Memoized Questions Component
-const Questions = React.memo(({setFieldValue,values}:any) => {
-    const { ShowHint } = useObjectToEdit();
-    const [t] = useTranslation();   
-    
-    const handleAddChoice = (
-        parent_index: number,
-        fromKeyCombination: boolean = false,
-    ) => {
-        setFieldValue(`Questions.[${parent_index}].answers`, [
-            ...((values as any)?.Questions?.[parent_index]
-                ?.answers as Choice[]),
-            {
-                answer: null,
-                content_image: null,
-                content: null,
-                isCorrect: 0,
-            },
-        ]);
-
-        if (fromKeyCombination) {
-            toast.success(t("header.new_choice_have_been_added"));
-        }
-    };
-
-    return (
-        <>
-            {(values?.Questions || [])?.map(
-                (item: Choice, parent_index: number) => {
-                    return (
-                        <div key={parent_index}>
-                            <div className="exercise_form QuestionFIeld">
-                                <QuestionFIeld setFieldValue={setFieldValue} values={values}  key={parent_index} index={parent_index} />
-                            </div>
-
-                            <Choices setFieldValue={setFieldValue} values={values}  parent_index={parent_index} />
-
-                            {values?.Questions?.[parent_index]?.answers?.length < 5 && (
-                                <p className="add_new_button">
-                                    <FaCirclePlus
-                                        onClick={() => handleAddChoice(parent_index)}
-                                        size={23}
-                                    />{" "}
-                                    {t("header.add_new_choice")}
-                                </p>
-                            )}
-
-                            <div className="exercise_form_width">
-                                {ShowHint && (
-                                    <ValidationField
-                                        className=" "
-                                        placeholder="_"
-                                        name={`Questions.${parent_index}.hint`}
-                                        label="hint_question"
-                                        type="TextArea"
-                                        style={{ width: "100%", height: 60, resize: "none" }}
-                                        autoSize={{ minRows: 2, maxRows: 10 }}
-                                        showCount={false}
-                                    />
-                                )}
-                                <MaltySelectTag parent_index={parent_index} />
-                            </div>
-                        </div>
-                    );
-                }
-            )}
-        </>
-    );
-}, (prevProps, nextProps) => {
-        
-    return prevProps.values.Questions === nextProps.values.Questions;
-});
-
-export default Questions;

src/Pages/Admin/question/Model/Malty/components/Questions.tsx

@@ -1,14 +1,8 @@
 import React, { useCallback, useMemo, useRef, useEffect } from 'react';
 import { VariableSizeList as List } from 'react-window';
-import { Choice } from '../../../../../../types/Item';
-import QuestionFIeld from '../QuestionFIeld/QuestionFIeld';
-import Choices from '../ChoiceField/Choices';
-import { FaCirclePlus } from 'react-icons/fa6';
-import ValidationField from '../../../../../../Components/ValidationField/ValidationField';
-import MaltySelectTag from '../Tags/MaltySelectTag';
 import { useTranslation } from 'react-i18next';
 import { useObjectToEdit } from '../../../../../../zustand/ObjectToEditState';
-import { toast } from 'react-toastify';
+import { Question } from './Question';
 
 interface QuestionsProps {
   setFieldValue: (field: string, value: any) => void;
@@ -17,67 +11,8 @@ interface QuestionsProps {
   };
 }
 
-const Row: React.FC<any> = React.memo(({ index, style, data }) => {
-  const { values, setFieldValue, ShowHint, t } = data;
-
-  const handleAddChoice = useCallback((
-    parent_index: number,
-    fromKeyCombination: boolean = false,
-  ) => {
-    setFieldValue(`Questions.[${parent_index}].answers`, [
-      ...(values?.Questions?.[parent_index]?.answers as Choice[]),
-      {
-        answer: null,
-        content_image: null,
-        content: null,
-        isCorrect: 0,
-      },
-    ]);
-
-    if (fromKeyCombination) {
-      toast.success(t("header.new_choice_have_been_added"));
-    }
-  }, [setFieldValue, values, t]);
-  
-  return (
-    <div style={style}>
-      <div className="exercise_form QuestionFIeld">
-        <QuestionFIeld setFieldValue={setFieldValue} values={values} key={index} index={index} />
-      </div>
-
-      <Choices setFieldValue={setFieldValue} values={values} parent_index={index} />
-
-      {values?.Questions?.[index]?.answers?.length < 5 && (
-        <p className="add_new_button">
-          <FaCirclePlus
-            onClick={() => handleAddChoice(index)}
-            size={23}
-          />{" "}
-          {t("header.add_new_choice")}
-        </p>
-      )}
-
-      <div className="exercise_form_width">
-        {ShowHint && (
-          <ValidationField
-            className=" "
-            placeholder="_"
-            name={`Questions.${index}.hint`}
-            label="hint_question"
-            type="TextArea"
-            style={{ width: "100%", height: 60, resize: "none" }}
-            autoSize={{ minRows: 2, maxRows: 10 }}
-            showCount={false}
-          />
-        )}
-        <MaltySelectTag parent_index={index} />
-      </div>
-    </div>
-  );
-});
-
 const Questions: React.FC<QuestionsProps> = React.memo(({ setFieldValue, values }) => {
-  const questions = values.Questions || [];
+  const questions = values?.Questions || [];
   const { ShowHint } = useObjectToEdit();
   const [t] = useTranslation();
   const listRef = useRef<List>(null);
@@ -90,7 +25,8 @@ const Questions: React.FC<QuestionsProps> = React.memo(({ setFieldValue, values
     if (question.answers?.length < 5) height += 40; // "Add new choice" button
     if (ShowHint) height += 80; // Hint field
     height += 50; // MaltySelectTag
-
+    console.log(height);
+    
     return height;
   }, [questions, ShowHint]);
 
@@ -108,19 +44,27 @@ const Questions: React.FC<QuestionsProps> = React.memo(({ setFieldValue, values
   }, [questions, ShowHint]);
 
   return (
-    <List
+ <>
+    {/* <List
       ref={listRef}
-      height={window.innerHeight - 20} // Adjust based on your layout
+      height={window.innerHeight - 450} // Adjust based on your layout
-      itemCount={questions.length}
+      itemCount={questions?.length}
       itemSize={getItemSize}
       width="100%"
       itemData={itemData}
       direction='rtl'
       className='ListQuestions'
-    >
+    > 
-      {Row}
+      
-    </List>
+      {Question}
+    </List> */}
+    {questions?.map((item:any,index:number)=>{
+      return (
+          <Question key={index} index={index} data={{ values, setFieldValue, ShowHint, t }} />
+      )
+    })}
+ </>
   );
-}, (prevProps, nextProps) => prevProps.values.Questions === nextProps.values.Questions);
+}, (prevProps, nextProps) => prevProps?.values?.Questions === nextProps?.values?.Questions);
 
 export default Questions;

src/Pages/Home/Dummy.tsx

@@ -1,11 +1,29 @@
+import { Formik,Form, Field } from "formik";
 import React from "react";
 import { useTranslation } from "react-i18next";
+import LaTeXInputMemo from "./LaTeXInputMemo";
 const Dummy = () => {
   const [t] = useTranslation();
   return (
     <div className="DummyHomePage">
       
+      <Formik initialValues={{}} onSubmit={()=>{}}>
+        <Form>
+          {Array.from({length:1000}).map((item:any,index)=>{
+            return (
+              <div key={index}>
 
+      <Field 
+      name={`content${index}`} 
+      component={LaTeXInputMemo} 
+      label={t("input.answer_content")} 
+    />
+ 
+              </div>
+            )
+          })}
+        </Form>
+      </Formik>
 
     </div>
   );

src/Pages/Home/LaTeXInputMemo.tsx

@@ -0,0 +1,63 @@
+import TextArea from 'antd/es/input/TextArea';
+import React, { useState } from 'react';
+import { useTranslation } from 'react-i18next';
+
+const LaTeXInputMemo: React.FC<any> =  React.memo(({ field ,form, label, ...props }) => {
+  const { name  ,value} = field;
+  
+  const { setFieldValue } = form;
+  const [curCentValue, setCurrentValue] = useState(value)
+  const handleChangeInput = (e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement>) => {
+    setFieldValue(name, e.target.value);
+    setCurrentValue(e.target.value)
+  };
+  console.log(name,"name");
+
+  const [t] = useTranslation();
+  
+
+
+  return (
+    <div className='LaTeXInput'>
+      <label htmlFor={name} className="text">
+        {t(label || name)}
+      </label>
+
+      <div className='LaTeXInputArea'>
+        <TextArea
+          size="large"
+          showCount
+          maxLength={1000}
+          autoSize={{ minRows: 6, maxRows: 10 }} 
+          style={{ height: "400px" }}
+          onChange={handleChangeInput}
+          value={curCentValue}
+          {...props}
+        />
+        
+     
+      </div>
+    </div>
+  );
+}, (
+  prevProps: any,
+  nextProps: any
+): boolean => {
+  const prevError = prevProps.form.errors[prevProps.field.name];
+  const nextError = nextProps.form.errors[nextProps.field.name];
+
+  const prevTouched = prevProps.form.touched[prevProps.field.name];
+  const nextTouched = nextProps.form.touched[nextProps.field.name];
+
+  const prevValue = prevProps.field.value;
+  const nextValue = nextProps.field.value;
+
+  return (
+    prevValue === nextValue 
+    &&
+    prevError === nextError &&
+    prevTouched === nextTouched
+  )
+});
+
+export default LaTeXInputMemo;

src/Styles/Pages/exercise.scss

@@ -357,5 +357,6 @@
 
 
 .ListQuestions{
-  @include Scrollbar()
+  @include Scrollbar();
+
 }