Update worker.js
fix: resolve TypeError in HistoryManager by ensuring MathJax.typesetPromise is available - Fixed the uncaught TypeError caused by `MathJax.typesetPromise` not being a function. - Ensured MathJax is properly loaded before calling `typesetPromise`. - Updated the HistoryManager.displayHistory function to handle MathJax initialization correctly. Fixes issue at (索引):750:15 and (索引):923:22.
This commit is contained in:
programmerWsy
182
worker.js
182
worker.js
@@ -188,14 +188,15 @@ async function recognizeImage(token, imageId) {
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content: [
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{
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type: 'text',
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text: '请识别图片中的内容。对于数学公式和数学符号，请使用标准的LaTeX格式输出。' +
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'要求：\n' +
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'1. 所有数学公式和单个数学符号都要用LaTeX格式\n' +
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'2. 普通文本保持原样\n' +
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'3. 对于行内公式使用$单个符号$\n' +
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'4. 对于独立公式块使用$$公式$$\n' +
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'5. 严格保持原文的段落格式和换行\n' +
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'6. 当文本明显换行时，使用\\n进行换行处理'
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text: '请识别图片中的内容，并按以下要求输出：\n' +
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'1. 所有数学公式和数学符号都必须使用标准的LaTeX格式\n' +
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'2. 行内公式使用单个$符号包裹，如：$x^2$\n' +
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'3. 独立公式块使用两个$$符号包裹，如：$$\\sum_{i=1}^n i^2$$\n' +
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'4. 普通文本保持原样，不要使用LaTeX格式\n' +
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'5. 保持原文的段落格式和换行\n' +
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'6. 明显的换行使用\\n表示\n' +
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'7. 不要输出任何额外的解释或说明\n' +
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'8. 确保所有数学符号都被正确包裹在$或$$中'
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},
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{ type: 'image', image: imageId },
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],
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@@ -209,13 +210,17 @@ async function recognizeImage(token, imageId) {
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const data = await response.json();
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// 处理识别结果
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// 处理识别结果，增加额外的格式化步骤
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let result = data.choices[0]?.message?.content || '识别失败';
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result = result
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.replace(/\\（/g, '\\(')
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.replace(/\\）/g, '\\)')
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.replace(/\n{3,}/g, '\n\n')
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.replace(/([^\n])\n([^\n])/g, '$1\n$2')
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// 确保数学公式被正确包裹
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.replace(/\$\s+/g, '$')
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.replace(/\s+\$/g, '$')
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.replace(/\$\$/g, '$$')
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.trim();
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return new Response(JSON.stringify({
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@@ -240,7 +245,6 @@ function getHTML() {
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// 添加 MathJax 支持
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'<script src="https://polyfill.io/v3/polyfill.min.js?features=es6"></script>',
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'<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>',
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'<script>',
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'window.MathJax = {',
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' tex: {',
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@@ -248,10 +252,35 @@ function getHTML() {
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' displayMath: [["$$", "$$"]]',
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' },',
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' startup: {',
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' typeset: false',
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' pageReady: () => {',
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' return MathJax.startup.defaultPageReady().then(() => {',
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' // MathJax 加载完成后刷新历史记录',
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' if (currentToken) {',
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' historyManager.displayHistory(currentToken);',
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' }',
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' });',
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' }',
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' },',
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' options: {',
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' enableMenu: false',
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' }',
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'};',
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'</script>',
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'<script id="MathJax-script" async src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js"></script>',
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'<script>',
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'function waitForMathJax(callback, maxTries = 30) {',
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' let tries = 0;',
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' const checkMathJax = () => {',
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' tries++;',
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' if (window.MathJax && window.MathJax.typesetPromise) {',
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' callback();',
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' } else if (tries < maxTries) {',
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' setTimeout(checkMathJax, 100);',
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' }',
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' };',
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' checkMathJax();',
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'}',
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'</script>',
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'<style>',
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' * {',
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@@ -1053,8 +1082,14 @@ function getHTML() {
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' }',
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' var html = \'\';',
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' for (var i = 0; i < history.length; i++) {',
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' var record = history[i];',
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' history.forEach((record, i) => {',
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' // 确保 image 数据存在且格式正确',
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' const imageUrl = record.image && (',
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' record.image.startsWith(\'data:\') ? ',
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' record.image : ',
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' `data:image/png;base64,${record.image}`',
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' );',
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' const timestamp = new Date(record.timestamp);',
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' const timeStr = timestamp.toLocaleString(\'zh-CN\', {',
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' year: \'numeric\',',
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@@ -1063,30 +1098,44 @@ function getHTML() {
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' hour: \'2-digit\',',
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' minute: \'2-digit\'',
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' });',
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' html += \'<div class="history-item">\';',
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' html += \'<div class="history-image-container">\';',
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' html += \'<img src="\' + record.image + \'" class="history-image" alt="历史图片" onclick="showFullImage(this.src)">\';',
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' html += \'<div class="image-overlay">\';',
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' html += \'<button class="overlay-btn" onclick="showFullImage(\\\'\' + record.image + \'\\\')">查看大图</button>\';',
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' html += \'</div>\';',
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' html += \'</div>\';',
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' html += \'<div class="history-content">\';',
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' html += \'<div class="history-header">\';',
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' html += \'<span class="history-time">\' + timeStr + \'</span>\';',
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' html += \'<div class="history-actions">\';',
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' html += \'<button class="action-btn copy-btn" onclick="copyHistoryResult(\' + i + \')">复制结果</button>\';',
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' html += \'<button class="action-btn delete-btn" onclick="deleteHistoryItem(\' + i + \')">删除</button>\';',
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' html += \'</div>\';',
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' html += \'</div>\';',
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' html += \'<div class="history-text">\' + record.result + \'</div>\';',
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' html += \'</div>\';',
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' html += \'</div>\';',
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' }',
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' html += `',
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' <div class="history-item" data-index="${i}">',
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' <div class="history-image-container">',
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' <img src="${imageUrl}" ',
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' class="history-image" ',
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' alt="历史图片" ',
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' onerror="this.src=\'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=\'"',
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' onclick="event.stopPropagation(); showFullImage(\'${imageUrl}\')">',
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' <div class="image-overlay">',
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' <button class="overlay-btn" onclick="event.stopPropagation(); showFullImage(\'${imageUrl}\')">查看大图</button>',
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' </div>',
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' </div>',
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' <div class="history-content">',
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' <div class="history-header">',
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' <span class="history-time">${timeStr}</span>',
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' <div class="history-actions">',
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' <button class="action-btn copy-btn" onclick="event.stopPropagation(); copyHistoryResult(${i})">复制结果</button>',
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' <button class="action-btn delete-btn" onclick="event.stopPropagation(); deleteHistoryItem(${i})">删除</button>',
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' </div>',
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' </div>',
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' <div class="history-text">${record.result || \'无识别结果\'}</div>',
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' </div>',
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' </div>',
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' `;',
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' });',
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' historyList.innerHTML = html;',
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' // 渲染数学公式',
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' MathJax.typesetPromise([historyList]);',
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' // 使用 waitForMathJax 函数处理公式渲染',
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' waitForMathJax(() => {',
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' try {',
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' MathJax.typesetPromise([historyList])',
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' .catch(err => console.error("MathJax渲染错误:", err));',
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' } catch (err) {',
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' console.error("MathJax处理错误:", err);',
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' }',
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' });',
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' };',
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' // 初始化变量',
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@@ -1216,9 +1265,21 @@ function getHTML() {
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' }',
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' const result = recognizeData.result || \'识别失败\';',
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' resultDiv.innerHTML = result; // 使用innerHTML而不是textContent以支持公式渲染',
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' MathJax.typesetPromise([resultDiv]).then(() => {', // 渲染数学公式',
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' resultContainer.classList.add(\'show\');',
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' resultDiv.innerHTML = result;',
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' waitForMathJax(() => {',
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' try {',
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' MathJax.typesetPromise([resultDiv])',
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' .then(() => {',
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' resultContainer.classList.add(\'show\');',
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' })',
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' .catch(err => {',
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' console.error("MathJax渲染错误:", err);',
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' resultContainer.classList.add(\'show\');',
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' });',
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' } catch (err) {',
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' console.error("MathJax处理错误:", err);',
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' resultContainer.classList.add(\'show\');',
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' }',
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' });',
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' // 添加到历史记录',
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@@ -1290,13 +1351,27 @@ function getHTML() {
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' const modalImg = document.getElementById(\'modalImage\');',
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' function showFullImage(src) {',
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' modal.style.display = "block";',
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' modalImg.src = src;',
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' modalImg.style.opacity = "0";',
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' const modal = document.getElementById(\'imageModal\');',
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' const modalImg = document.getElementById(\'modalImage\');',
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' if (!src) {',
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' console.error(\'图片源为空\');',
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' return;',
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' }',
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' modal.style.display = \'block\';',
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' modalImg.src = src;',
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' // 添加加载错误处理',
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' modalImg.onerror = function() {',
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' alert(\'图片加载失败\');',
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' modal.style.display = \'none\';',
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' };',
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' modalImg.style.opacity = \'0\';',
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' setTimeout(() => {',
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' modalImg.style.transition = "opacity 0.3s ease";',
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' modalImg.style.opacity = "1";',
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' modalImg.style.transition = \'opacity 0.3s ease\';',
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' modalImg.style.opacity = \'1\';',
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' }, 50);',
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' }',
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@@ -1404,27 +1479,38 @@ function getHTML() {
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' // 复制历史记录结果',
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' async function copyHistoryResult(index) {',
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' const history = historyManager.loadHistory(currentToken);',
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' const result = history[index].result;',
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' const result = history[index]?.result;',
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' if (!result) {',
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' alert(\'无法复制：结果为空\');',
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' return;',
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' }',
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' try {',
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' await navigator.clipboard.writeText(result);',
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' const btn = event.target;',
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' btn.textContent = \'已复制\';',
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' btn.style.background = \'#27ae60\';',
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' btn.style.color = \'#fff\';',
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' btn.classList.add(\'copied\');',
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' setTimeout(() => {',
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' btn.textContent = \'复制结果\';',
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' btn.style.background = \'none\';',
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' btn.style.color = \'#3498db\';',
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' btn.classList.remove(\'copied\');',
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' }, 2000);',
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' } catch (err) {',
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' console.error(\'复制失败:\', err);',
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' alert(\'复制失败，请手动复制\');',
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' }',
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' }',
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' // 删除历史记录项',
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' function deleteHistoryItem(index) {',
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' const history = historyManager.loadHistory(currentToken);',
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' if (!history[index]) {',
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' alert(\'该记录不存在\');',
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' return;',
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' }',
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' if (confirm(\'确定要删除这条历史记录吗？\')) {',
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' const history = historyManager.loadHistory(currentToken);',
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' history.splice(index, 1);',
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' historyManager.saveHistory(currentToken, history);',
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' historyManager.displayHistory(currentToken);',
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