修复快速点击下一页按钮点击频率过快时页面跳转到未知名页面

app/difficulty.py

@@ -6,14 +6,10 @@
 # Purpose: compute difficulty level of a English text
 
 import pickle
-import time
+import math
-
+from wordfreqCMD import remove_punctuation, freq, sort_in_descending_order, sort_in_ascending_order
 import snowballstemmer
 
-from wordfreqCMD import remove_punctuation, freq, sort_in_descending_order, sort_in_ascending_order
-
-# 定义一个全局的res_d， 记录数据库单词评级之后的单词及其等级
-res_d = {}
 
 def load_record(pickle_fname):
     f = open(pickle_fname, 'rb')
@@ -28,7 +24,6 @@ def convert_test_type_to_difficulty_level(d):
     :param d: 存储了单词库pickle文件中的单词的字典
     :return:
     """
-    time_start = time.time()
     result = {}
     L = list(d.keys())  # in d, we have test types (e.g., CET4,CET6,BBC) for each word
 
@@ -43,10 +38,7 @@ def convert_test_type_to_difficulty_level(d):
             result[k] = 7
         elif 'BBC' in d[k]:
             result[k] = 8
-    time_end = time.time()
+
-    print('convert_test_type_to_difficulty_level totally cost', time_end - time_start)
-    global res_d
-    res_d = result
     return result  # {'apple': 4, ...}
 
 
@@ -56,12 +48,8 @@ def get_difficulty_level_for_user(d1, d2):
     d1 用户不会的词
     在d2的后面添加单词，没有新建一个新的字典
     """
-    time_start = time.time()
     # TODO: convert_test_type_to_difficulty_level() should not be called every time.  Each word's difficulty level should be pre-computed.
-    if res_d == {}:
+    d2 = convert_test_type_to_difficulty_level(d2)  # 根据d2的标记评级{'apple': 4, 'abandon': 4, ...}
-        d2 = convert_test_type_to_difficulty_level(d2)  # 根据d2的标记评级{'apple': 4, 'abandon': 4, ...}
-    else:
-        d2 = res_d
     stemmer = snowballstemmer.stemmer('english')
 
     for k in d1:  # 用户的词
@@ -73,8 +61,6 @@ def get_difficulty_level_for_user(d1, d2):
                 d2[k] = d2[stem]  # 按照词根进行评级
             else:
                 d2[k] = 3  # 如果k的词根都不在，那么就当认为是3级
-    time_end = time.time()
-    print('get_difficulty_level_for_user totally cost', time_end - time_start)
     return d2
 
 

app/static/js/fillword.js

@@ -29,8 +29,3 @@ function onReadClick() {
 function onChooseClick() {
     isChoose = !isChoose;
 }
-
-// 如果网页刷新，停止播放声音
-if (performance.getEntriesByType("navigation")[0].type == "reload") {
-    Reader.stopRead();
-}

app/static/js/highlight.js

@@ -22,38 +22,62 @@ function getWord() {
 
 function highLight() {
     if (!isHighlight) return;
-    let articleContent = document.getElementById("article").innerHTML; // innerHTML保留HTML标签来保持部分格式，且适配不同的浏览器
+    let articleContent = document.getElementById("article").innerText; //将原来的.innerText改为.innerHtml，使用innerText会把原文章中所包含的<br>标签去除，导致处理后的文章内容失去了原来的格式
     let pickedWords = document.getElementById("selected-words");  // words picked to the text area
     let dictionaryWords = document.getElementById("selected-words2"); // words appearing in the user's new words list
-    let allWords = dictionaryWords === null ? pickedWords.value + " " : pickedWords.value + " " + dictionaryWords.value;
+    let allWords = "";  //初始化allWords的值，避免进入判断后编译器认为allWords未初始化的问题
-    const list = allWords.split(" "); // 将所有的生词放入一个list中
+    if(dictionaryWords != null){//增加一个判断，检查生词本里面是否为空，如果为空，allWords只添加选中的单词
-    let totalSet = new Set();
+        allWords = pickedWords.value + " " + dictionaryWords.value;
+    }
+    else{
+        allWords = pickedWords.value + " ";
+    }
+    const list = allWords.split(" ");//将所有的生词放入一个list中，用于后续处理
     for (let i = 0; i < list.length; ++i) {
-        list[i] = list[i].replace(/(^\W*)|(\W*$)/g, ""); // 消除单词两边的非单词字符
+        list[i] = list[i].replace(/(^\s*)|(\s*$)/g, ""); //消除单词两边的空字符
-        if (list[i] != "" && !totalSet.has(list[i])) {
+        list[i] = list[i].replace('|', "");
-            // 返回所有匹配单词的集合, 正则表达式RegExp()中, "\b"匹配一个单词的边界, g 表示全局匹配, i 表示对大小写不敏感。
+        list[i] = list[i].replace('?', "");
-            let matches = new Set(articleContent.match(new RegExp("\\b" + list[i] + "\\b", "gi")));
+        if (list[i] !== "" && "<mark>".indexOf(list[i]) === -1 && "</mark>".indexOf(list[i]) === -1) {
-            if (matches.has("mark")) {
+           //将文章中所有出现该单词word的地方改为："<mark>" + word + "<mark>"。 正则表达式RegExp()中，"\\b"代表单词边界匹配。
-                // 优先处理单词为 "mark" 的情况
+
-                totalSet = new Set(["mark", ...totalSet]);
+            //修改代码
+            let articleContent_fb = articleContent;  //文章副本
+            while(articleContent_fb.toLowerCase().indexOf(list[i].toLowerCase()) !== -1 && list[i]!=""){
+                //找到副本中和list[i]匹配的第一个单词(第一种匹配情况),并赋值给list[i]。
+                const index = articleContent_fb.toLowerCase().indexOf(list[i].toLowerCase());
+                list[i] = articleContent_fb.substring(index, index + list[i].length);
+
+                articleContent_fb = articleContent_fb.substring(index + list[i].length);    // 使用副本中list[i]之后的子串替换掉副本
+                articleContent = articleContent.replace(new RegExp("\\b"+list[i]+"\\b","g"),"<mark>" + list[i] + "</mark>");
             }
-            totalSet = new Set([...totalSet, ...matches]);
         }
-    } 
-    // 删除所有的mark标签,防止标签发生嵌套
-    articleContent = articleContent.replace(/<(mark)[^>]*>/gi, "");
-    articleContent = articleContent.replace(/<(\/mark)[^>]*>/gi, "");
-    // 将文章中所有出现该单词word的地方改为："<mark>" + word + "<mark>"。
-    for (let word of totalSet) {
-        articleContent = articleContent.replace(new RegExp("\\b" + word + "\\b", "g"), "<mark>" + word + "</mark>");
     }
     document.getElementById("article").innerHTML = articleContent;
 }
 
 function cancelHighlighting() {
-    let articleContent = document.getElementById("article").innerHTML;
+    let articleContent = document.getElementById("article").innerText;//将原来的.innerText改为.innerHtml，原因同上
-    articleContent = articleContent.replace(/<(mark)[^>]*>/gi, "");
+    let pickedWords = document.getElementById("selected-words");
-    articleContent = articleContent.replace(/<(\/mark)[^>]*>/gi, "");
+    const dictionaryWords = document.getElementById("selected-words2");    
+    const list = pickedWords.value.split(" ");    
+    if (pickedWords != null) {
+        for (let i = 0; i < list.length; ++i) {
+            list[i] = list[i].replace(/(^\s*)|(\s*$)/g, "");
+            if (list[i] !== "") { //原来判断的代码中，替换的内容为“list[i]”这个字符串，这明显是错误的，我们需要替换的是list[i]里的内容
+                articleContent = articleContent.replace(new RegExp("<mark>"+list[i]+"</mark>", "g"), list[i]);
+            }
+        }
+    }
+    if (dictionaryWords != null) {
+        let list2 = pickedWords.value.split(" ");
+        for (let i = 0; i < list2.length; ++i) {
+            list2 = dictionaryWords.value.split(" ");
+            list2[i] = list2[i].replace(/(^\s*)|(\s*$)/g, "");
+            if (list2[i] !== "") { //原来代码中，替换的内容为“list[i]”这个字符串，这明显是错误的，我们需要替换的是list[i]里的内容
+                articleContent = articleContent.replace(new RegExp("<mark>"+list2[i]+"</mark>", "g"), list2[i]);
+            }
+        }
+    }
     document.getElementById("article").innerHTML = articleContent;
 }
 
@@ -75,4 +99,4 @@ function toggleHighlighting() {
     }
 }
 
-showBtnHandler();
+showBtnHandler();

app/static/js/read.js

@@ -9,7 +9,7 @@ var Reader = (function() {
         msg.rate = rate;
         msg.lang = "en-US";
         msg.onboundary = ev => {
-            if (ev.name === "word") {
+            if (ev.name == "word") {
                 current_position = ev.charIndex;
             }
         }
@@ -32,4 +32,4 @@ var Reader = (function() {
         read: read,
         stopRead: stopRead
     };
-}) ();
+})();

app/static/js/word_operation.js

@@ -5,14 +5,15 @@ function familiar(theWord) {
     $.ajax({
         type:"GET",
         url:"/" + username + "/" + word + "/familiar",
-        success:function(response) {
+        success:function(response){
             let new_freq = freq - 1;
             const allow_move = document.getElementById("move_dynamiclly").checked;
             if (allow_move) {
+
                 if (new_freq <= 0) {
                     removeWord(theWord);
                 } else {
-                    renderWord({word: theWord, freq: new_freq});
+                    renderWord({ word: theWord, freq: new_freq });
                 }
             } else {
                 if(new_freq <1) {
@@ -32,11 +33,11 @@ function unfamiliar(theWord) {
     $.ajax({
         type:"GET",
         url:"/" + username + "/" + word + "/unfamiliar",
-        success:function(response) {
+        success:function(response){
             let new_freq = parseInt(freq) + 1;
             const allow_move = document.getElementById("move_dynamiclly").checked;
             if (allow_move) {
-                renderWord({word: theWord, freq: new_freq});
+                renderWord({ word: theWord, freq: new_freq });
             } else {
                 $("#freq_" + theWord).text(new_freq);
             }
@@ -50,7 +51,7 @@ function delete_word(theWord) {
     $.ajax({
         type:"GET",
         url:"/" + username + "/" + word + "/del",
-        success:function(response) {
+        success:function(response){
             const allow_move = document.getElementById("move_dynamiclly").checked;
             if (allow_move) {
                 removeWord(theWord);
@@ -113,7 +114,7 @@ function removeWord(word) {
     // 根据词频信息删除元素
     word = word.replace('&amp;', '&');
     const element_to_remove = document.getElementById(`p_${word}`);
-    if (element_to_remove !== null) {
+    if (element_to_remove != null) {
         element_to_remove.remove();
     }
 }
@@ -128,7 +129,7 @@ function renderWord(word) {
     for (const current of container.children) {
         const cur_word = parseWord(current);
         // 找到第一个词频比它小的元素，插入到这个元素前面
-        if (compareWord(cur_word, word) === -1) {
+        if (compareWord(cur_word, word) == -1) {
             container.insertBefore(new_element, current);
             inserted = true;
             break;
@@ -164,11 +165,17 @@ function elementFromString(string) {
  *  当first大于second时返回1
  */
 function compareWord(first, second) {
-    if (first.freq !== second.freq) {
+    if (first.freq < second.freq) {
-        return first.freq < second.freq ? -1 : 1;
+        return -1;
     }
-    if (first.word !== second.word) {
+    if (first.freq > second.freq) {
-        return first.word < second.word ? -1 : 1;
+        return 1;
+    }
+    if (first.word < second.word) {
+        return -1;
+    }
+    if (first.word > second.word) {
+        return 1;
     }
     return 0;
-}
+}

app/templates/userpage_get.html

@@ -5,6 +5,8 @@
     <meta name="viewport"
           content="width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=3.0, user-scalable=yes"/>
     <meta name="format-detection" content="telephone=no"/>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.1/dist/css/bootstrap.min.css" rel="stylesheet">
+    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.1/dist/js/bootstrap.bundle.min.js"></script>
 
     {{ yml['header'] | safe }}
     {% if yml['css']['item'] %}
@@ -26,22 +28,39 @@
         }
 
         @keyframes shakes {
-            10%, 90% { transform: translate3d(-1px, 0, 0); }
+            10%, 90% {
-            20%, 50% { transform: translate3d(+2px, 0, 0); }
+                transform: translate3d(-1px, 0, 0);
-            30%, 70% { transform: translate3d(-4px, 0, 0); }
+            }
-            40%, 60% { transform: translate3d(+4px, 0, 0); }
+            20%, 50% {
-            50% { transform: translate3d(-4px, 0, 0); }
+                transform: translate3d(+2px, 0, 0);
+            }
+            30%, 70% {
+                transform: translate3d(-4px, 0, 0);
+            }
+            40%, 60% {
+                transform: translate3d(+4px, 0, 0);
+            }
+            50% {
+                transform: translate3d(-4px, 0, 0);
+            }
         }
 
-        .lead{
+        .lead {
-            font-size: 17px;
+            font-size: 22px;
-            font-family: Arial, Helvetica, sans-serif;
+            font-family: Helvetica, sans-serif;
+            white-space: pre-wrap;
         }
 
-        .display-5{
+        .arrow {
-            font-size: 30px;
+            padding: 0;
+            font-size: 20px;
+            line-height: 21px;
+            display: inline-block;
         }
 
+        .arrow:hover {
+            cursor: pointer;
+        }
 
     </style>
 </head>
@@ -50,57 +69,70 @@
     <p><b>English Pal for <font id="username" color="red">{{ username }}</font></b>
 
         {% if username ==  admin_name %}
-        <a class="btn btn-secondary" href="/admin" role="button" onclick="stopRead()">管理</a>
+            <a class="btn btn-secondary" href="/admin" role="button" onclick="stopRead()">管理</a>
         {% endif %}
         <a id="quit" class="btn btn-secondary" href="/logout" role="button" onclick="stopRead()">退出</a>
         <a class="btn btn-secondary" href="/reset" role="button" onclick="stopRead()">重设密码</a>
 
     </p>
-{#    {% for message in flashed_messages %}#} {# 根据user_service.userpage,取消了参数flashed_messages，因此注释了这段代码 #}
+    {% for message in get_flashed_messages() %}
-{#        <div class="alert alert-warning" role="alert">Congratulations! {{ message }}</div>#}
+        <div class="alert alert-warning alert-dismissible fade show" role="alert">
-{#    {% endfor %}#}
+            {{ message }}
+            <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
+        </div>
+    {% endfor %}
 
-        <button class="btn btn-success" id="load_next_article" onclick="load_next_article();Reader.stopRead()"> 下一篇 Next Article </button>
+    <button class="arrow" id="load_next_article" onclick="load_next_article();Reader.stopRead()"
-        <button class="btn btn-success" id="load_pre_article" onclick="load_pre_article();Reader.stopRead()" > 上一篇 Previous Article </button>
+            title="下一篇 Next Article">⇨
+    </button>
+    <button class="arrow" id="load_pre_article" onclick="load_pre_article();Reader.stopRead()" style="display: none"
+            title="上一篇 Previous Article">⇦
+    </button>
 
     <p><b>阅读文章并回答问题</b></p>
     <div id="text-content">
         <div id="found">
-            <div class="alert alert-success" role="alert">According to your word list, your level is <span class="badge bg-success" id="user-level">{{ today_article["user_level"] }}</span>  and we have chosen an article with a difficulty level of <span class="badge bg-success" id="text_level">{{ today_article["text_level"] }}</span> for you.</div>
+            <div class="alert alert-success" role="alert">According to your word list, your level is <span
-                <p class="text-muted" id="date">Article added on: {{ today_article["date"] }}</p><br/>
+                    class="text-decoration-underline" id="user_level">{{ today_article["user_level"] }}</span> and we
-            <div class="p-3 mb-2 bg-light text-dark" style="margin: 0 0.5%;"><br/>
+                have chosen an article with a difficulty level of <span class="text-decoration-underline"
-            <p class="display-5" id="article_title">{{ today_article["article_title"] }}</p><br/>
+                                                                        id="text_level">{{ today_article["text_level"] }}</span>
-            <p class="lead"><font id="article">{{ today_article["article_body"] }}</font></p><br/>
+                for you.
-            <div>
-                <h6>source: </h6>
-                <p><small class="text-muted" id="source">{{ today_article['source'] }}</small></p><br/>
             </div>
-            
+            <p class="text-muted" id="date">Article added on: {{ today_article["date"] }}</p><br/>
-            <p><b id="question">{{ today_article['question'] }}</b></p><br/>
+            <div class="p-3 mb-2 bg-light text-dark" style="margin: 0 0.5%;"><br/>
+                <p class="display-6" id="article_title">{{ today_article["article_title"] }}</p><br/>
+                <p class="lead"><font id="article">{{ today_article["article_body"] }}</font></p><br/>
+                <div>
+                    <p><small class="text-muted" id="source">{{ today_article['source'] }}</small></p><br/>
+                </div>
+
+                <p><b id="question">{{ today_article['question'] }}</b></p><br/>
                 <script type="text/javascript">
                     function toggle_visibility(id) { {# https://css-tricks.com/snippets/javascript/showhide-element/#}
                         const e = document.getElementById(id);
-                        if(e.style.display === 'block')
+                        if (e.style.display === 'block')
                             e.style.display = 'none';
                         else
                             e.style.display = 'block';
                     }
                 </script>
                 <button onclick="toggle_visibility('answer');">ANSWER</button>
-                <div id="answer" style="display:none;">{{ today_article['answer'] }}</div><br/>
+                <div id="answer" style="display:none;">{{ today_article['answer'] }}</div>
+                <br/>
             </div>
         </div>
         <div class="alert alert-success" role="alert" id="not_found" style="display:none;">
-            <p class="text-muted"><span class="badge bg-success">Notes:</span><br>No article is currently available for you. You can try again a few times or mark new words in the passage to improve your level.</p>
+            <p class="text-muted"><span class="badge bg-success">Notes:</span><br>No article is currently available for
+                you. You can try again a few times or mark new words in the passage to improve your level.</p>
         </div>
         <div class="alert alert-success" role="alert" id="read_all" style="display:none;">
             <p class="text-muted"><span class="badge bg-success">Notes:</span><br>You've read all the articles.</p>
         </div>
     </div>
 
-    <input type="checkbox" onclick="toggleHighlighting()" checked/>生词高亮
+    <input type="checkbox" id="highlightCheckbox" onclick="toggleHighlighting()"/>生词高亮
-    <input type="checkbox" onclick="onReadClick()" checked/>大声朗读
+    <input type="checkbox" id="readCheckbox" onclick="onReadClick()"/>大声朗读
-    <input type="checkbox" onclick="onChooseClick()" checked/>划词入库
+    <input type="checkbox" id="chooseCheckbox" onclick="onChooseClick()"/>划词入库
     <div class="range">
         <div class="field">
             <div class="sliderValue">
@@ -112,8 +144,8 @@
     <p><b>收集生词吧</b> （可以在正文中划词，也可以复制黏贴）</p>
     <form method="post" action="/{{ username }}/userpage">
         <textarea name="content" id="selected-words" rows="10" cols="120"></textarea><br/>
-        <input type="submit" value="把生词加入我的生词库" onclick="Reader.stopRead()"/>
+        <button class="btn btn-primary btn-lg" type="submit" onclick="Reader.stopRead()">把生词加入我的生词库</button>
-        <input type="reset" value="清除"/>
+        <button class="btn btn-primary btn-lg" type="reset" onclick="clearSelectedWords()">清除</button>
     </form>
     {% if session.get['thisWord'] %}
         <script type="text/javascript">
@@ -128,7 +160,7 @@
 
     {% if d_len > 0 %}
         <p>
-            <b>我的生词簿</b> 
+            <b>我的生词簿</b>
             <label for="move_dynamiclly">
                 <input type="checkbox" name="move_dynamiclly" id="move_dynamiclly" checked>
                 允许动态调整顺序
@@ -141,9 +173,10 @@
                 {% set freq = x[1] %}
                 {% if session.get('thisWord') == x[0] and session.get('time') == 1 %}
                 {% endif %}
-                <p id='p_{{ word }}' class="new-word" >
+                <p id='p_{{ word }}' class="new-word">
-                    <a id="word_{{ word }}"  class="btn btn-light" href='http://youdao.com/w/eng/{{ word }}/#keyfrom=dict2.index'
+                    <a id="word_{{ word }}" class="btn btn-light"
-                    role="button">{{ word }}</a>
+                       href='http://youdao.com/w/eng/{{ word }}/#keyfrom=dict2.index'
+                       role="button">{{ word }}</a>
                     ( <a id="freq_{{ word }}" title="{{ word }}">{{ freq }}</a> )
                     <a class="btn btn-success" onclick="familiar('{{ word }}')" role="button">熟悉</a>
                     <a class="btn btn-warning" onclick="unfamiliar('{{ word }}')" role="button">不熟悉</a>
@@ -162,60 +195,127 @@
     {% endfor %}
 {% endif %}
 <script type="text/javascript">
-    function load_next_article(){
+    window.onload = function () { // 页面加载时执行
+        const settings = {
+            // initialize settings from localStorage
+            highlightChecked: localStorage.getItem('highlightChecked') !== 'false', // localStorage stores strings, default to true. same below
+            readChecked: localStorage.getItem('readChecked') !== 'false',
+            chooseChecked: localStorage.getItem('chooseChecked') !== 'false',
+            rangeValue: localStorage.getItem('rangeValue') || '1',
+            selectedWords: localStorage.getItem('selectedWords') || ''
+        };
+
+        const elements = {
+            highlightCheckbox: document.querySelector('#highlightCheckbox'),
+            readCheckbox: document.querySelector('#readCheckbox'),
+            chooseCheckbox: document.querySelector('#chooseCheckbox'),
+            rangeComponent: document.querySelector('#rangeComponent'),
+            rangeValueDisplay: document.querySelector('#rangeValue'),
+            selectedWordsInput: document.querySelector('#selected-words')
+        };
+        // 应用设置到页面元素
+        elements.highlightCheckbox.checked = settings.highlightChecked;
+        elements.readCheckbox.checked = settings.readChecked;
+        elements.chooseCheckbox.checked = settings.chooseChecked;
+        elements.rangeComponent.value = settings.rangeValue;
+        elements.rangeValueDisplay.textContent = `${settings.rangeValue}x`;
+        elements.selectedWordsInput.value = settings.selectedWords;
+
+        // 刷新页面或进入页面时判断，若不是首篇文章，则上一篇按钮可见
+        if (sessionStorage.getItem('pre_page_button') !== 'display' && sessionStorage.getItem('pre_page_button')) {
+            $('#load_pre_article').show();
+        }
+
+        // 事件监听器
+        elements.selectedWordsInput.addEventListener('input', () => {
+            localStorage.setItem('selectedWords', elements.selectedWordsInput.value);
+        });
+
+        elements.rangeComponent.addEventListener('input', () => {
+            const rangeValue = elements.rangeComponent.value;
+            elements.rangeValueDisplay.textContent = `${rangeValue}x`;
+            localStorage.setItem('rangeValue', rangeValue);
+        });
+    };
+
+    function clearSelectedWords() {
+        localStorage.removeItem('selectedWords');
+        document.querySelector('#selected-words').value = '';
+    }
+
+
+    function load_next_article() {
+        $("#load_next_article").prop("disabled", true)
         $.ajax({
             url: '/get_next_article/{{username}}',
             dataType: 'json',
-            success: function(data) {
+            success: function (data) {
                 // 更新页面内容
-                if(data['today_article']){
+                if (data['today_article']) {
                     update(data['today_article']);
                     check_pre(data['visited_articles']);
                     check_next(data['result_of_generate_article']);
                 }
+            }, complete: function (xhr, status) {
+                $("#load_next_article").prop("disabled", false)
             }
         });
     }
-    function load_pre_article(){
+
+    function load_pre_article() {
         $.ajax({
             url: '/get_pre_article/{{username}}',
             dataType: 'json',
-            success: function(data) {
+            success: function (data) {
                 // 更新页面内容
-                if(data['today_article']){
+                if (data['today_article']) {
                     update(data['today_article']);
                     check_pre(data['visited_articles']);
                 }
             }
         });
     }
-    function update(today_article){
+
-        $('#user-level').html(today_article['user_level']);
+    function update(today_article) {
+        $('#user_level').html(today_article['user_level']);
         $('#text_level').html(today_article["text_level"]);
-        $('#date').html('Article added on: '+today_article["date"]);
+        $('#date').html('Article added on: ' + today_article["date"]);
         $('#article_title').html(today_article["article_title"]);
         $('#article').html(today_article["article_body"]);
         $('#source').html(today_article['source']);
         $('#question').html(today_article["question"]);
         $('#answer').html(today_article["answer"]);
+        document.querySelector('#text_level').classList.add('mark'); // highlight text difficult level for 2 seconds
+        setTimeout(() => {
+            document.querySelector('#text_level').classList.remove('mark');
+        }, 2000);
+        document.querySelector('#user_level').classList.add('mark'); // do the same thing for user difficulty level
+        setTimeout(() => {
+            document.querySelector('#user_level').classList.remove('mark');
+        }, 2000);
     }
-<!-- 检查是否存在上一篇或下一篇，不存在则对应按钮隐藏-->
+
-    function check_pre(visited_articles){
+    <!-- 检查是否存在上一篇或下一篇，不存在则对应按钮隐藏-->
-        if((visited_articles=='')||(visited_articles['index']<=0)){
+    function check_pre(visited_articles) {
+        if ((visited_articles == '') || (visited_articles['index'] <= 0)) {
             $('#load_pre_article').hide();
-        }else{
+            sessionStorage.setItem('pre_page_button', 'display')
+        } else {
             $('#load_pre_article').show();
+            sessionStorage.setItem('pre_page_button', 'show')
         }
     }
-    function check_next(result_of_generate_article){
+
-        if(result_of_generate_article == "found"){
+    function check_next(result_of_generate_article) {
-            $('#found').show();$('#not_found').hide();
+        if (result_of_generate_article == "found") {
+            $('#found').show();
+            $('#not_found').hide();
             $('#read_all').hide();
-        }else if(result_of_generate_article == "not found"){
+        } else if (result_of_generate_article == "not found") {
             $('#found').hide();
             $('#not_found').show();
             $('#read_all').hide();
-        }else{
+        } else {
             $('#found').hide();
             $('#not_found').hide();
             $('#read_all').show();

app/test/test_next_article.py

@@ -0,0 +1,85 @@
+''' Contributed by Lin Junhong et al. 2023-06.'''
+
+from selenium import webdriver
+from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
+
+from selenium.webdriver.support.ui import WebDriverWait
+from selenium.webdriver.support import expected_conditions as EC
+from selenium.common.exceptions import UnexpectedAlertPresentException, NoAlertPresentException
+import random, time
+import string
+
+# 初始化webdriver
+# driver = webdriver.Remote('http://localhost:4444/wd/hub', DesiredCapabilities.CHROME)
+# driver.implicitly_wait(10)
+driver = webdriver.Chrome("C:\\Users\\12993\AppData\Local\Programs\Python\Python38\\chromedriver.exe")
+
+
+def test_next_article():
+    try:
+        driver.get("http://118.25.96.118:90")
+        assert 'English Pal -' in driver.page_source
+        # login
+        elem = driver.find_element_by_link_text('登录')
+        elem.click()
+
+        uname = 'abcdefg'
+        password = 'abcdefg'
+        elem = driver.find_element_by_id('username')
+        elem.send_keys(uname)
+
+        elem = driver.find_element_by_id('password')
+        elem.send_keys(password)
+        elem = driver.find_element_by_xpath('/html/body/div/button')  # 找到登录按钮
+        elem.click()
+
+        time.sleep(0.5)
+        assert 'EnglishPal Study Room for ' + uname in driver.title
+        for i in range(50):
+            time.sleep(0.1)
+            # 找到固定按钮
+            elem = driver.find_element_by_xpath('//*[@id="load_next_article"]')
+            elem.click()
+    except Exception as e:
+        print(e)
+
+
+def test_local_next_article():
+    try:
+        driver.get("http://127.0.0.1:5000")
+        assert 'English Pal -' in driver.page_source
+        # login
+        elem = driver.find_element_by_link_text('注册')
+        elem.click()
+
+        uname = 'abcdefg'
+        password = 'abcdefg'
+        elem = driver.find_element_by_id('username')
+        elem.send_keys(uname)
+
+        elem = driver.find_element_by_id('password')
+        elem.send_keys(password)
+
+        elem = driver.find_element_by_id('password2')
+        elem.send_keys(password)
+
+        time.sleep(0.5)
+
+        elem = driver.find_element_by_class_name('btn')  # 找到提交按钮
+        elem.click()
+        time.sleep(0.5)
+        try:
+            WebDriverWait(driver, 1).until(EC.alert_is_present())
+            driver.switch_to.alert.accept()
+        except (UnexpectedAlertPresentException, NoAlertPresentException):
+            pass
+
+        time.sleep(0.5)
+        assert 'EnglishPal Study Room for ' + uname in driver.title
+        for i in range(50):
+            time.sleep(0.1)
+            # 找到固定按钮
+            elem = driver.find_element_by_xpath('//*[@id="load_next_article"]')
+            elem.click()
+    except Exception as e:
+        print(e)

requirements.txt

@@ -1,5 +1,8 @@
-Flask==1.1.2
+Flask==2.0.3
 selenium==3.141.0
 PyYAML~=6.0
 pony==0.7.16
 snowballstemmer==2.2.0
+Werkzeug==2.2.2
+
+pytest~=8.1.1