|
| 1 | +// 读取本地 JSON 文件 |
| 2 | +fetch('/quotes/proverbs.json') |
| 3 | + .then(response => { |
| 4 | + if (!response.ok) { |
| 5 | + throw new Error('Network response was not ok'); |
| 6 | + } |
| 7 | + return response.json(); |
| 8 | + }) |
| 9 | + .then(data => { |
| 10 | + // 将 JSON 数据分配给一个常量 |
| 11 | + const quotes = data; |
| 12 | + |
| 13 | + // 在 JavaScript 中以常量方式使用 JSON 数据 |
| 14 | + // console.log("JSON Data:", quotes); |
| 15 | + |
| 16 | + let currentIndex = 0; |
| 17 | + let isAnimating = false; |
| 18 | + let interpretationVisible = false; |
| 19 | + |
| 20 | + const quoteCard = document.getElementById('quoteCard'); |
| 21 | + const interpretationContainer = document.getElementById('interpretationContainer'); |
| 22 | + const quoteInterpretation = document.getElementById('quoteInterpretation'); |
| 23 | + const svgContainer = document.getElementById('svgContainer'); |
| 24 | + const prevButton = document.getElementById('prevButton'); |
| 25 | + const nextButton = document.getElementById('nextButton'); |
| 26 | + const backToTopButton = document.getElementById('backToTop'); |
| 27 | + const canvas = document.getElementById('canvas'); |
| 28 | + const ctx = canvas.getContext('2d'); |
| 29 | + |
| 30 | + function createQuoteCard(quote, direction = 'next') { |
| 31 | + if (isAnimating) return; |
| 32 | + isAnimating = true; |
| 33 | + |
| 34 | + const quoteCard = document.getElementById('quoteCard'); |
| 35 | + const newQuoteCard = document.createElement('div'); |
| 36 | + newQuoteCard.className = 'quote-card'; |
| 37 | + newQuoteCard.innerHTML = ` |
| 38 | + <div class="quote-chinese">${quote.chinese}</div> |
| 39 | + <div class="quote-english">${quote.english}</div> |
| 40 | + ${quote.author ? `<div class="quote-author">— ${quote.author}</div>` : ''} |
| 41 | + ${quote.source ? `<div class="quote-source">出处 / Source: ${formatSource(quote.source)}</div>` : ''} |
| 42 | + `; |
| 43 | + |
| 44 | + // 设置新卡片的初始位置 |
| 45 | + newQuoteCard.classList.add(direction === 'next' ? 'slide-right' : 'slide-left'); |
| 46 | + |
| 47 | + // 添加新卡片到容器 |
| 48 | + const container = document.getElementById('quoteCardContainer'); |
| 49 | + container.appendChild(newQuoteCard); |
| 50 | + |
| 51 | + // 触发重排 |
| 52 | + void newQuoteCard.offsetWidth; |
| 53 | + |
| 54 | + // 开始动画 |
| 55 | + quoteCard.classList.add('fade-out'); |
| 56 | + quoteCard.classList.add(direction === 'next' ? 'slide-left' : 'slide-right'); |
| 57 | + newQuoteCard.classList.add('fade-in'); |
| 58 | + newQuoteCard.classList.remove('slide-right', 'slide-left'); |
| 59 | + |
| 60 | + // 动画结束后移除旧卡片 |
| 61 | + setTimeout(() => { |
| 62 | + if (container.contains(quoteCard)) { |
| 63 | + container.removeChild(quoteCard); |
| 64 | + } |
| 65 | + newQuoteCard.id = 'quoteCard'; |
| 66 | + isAnimating = false; |
| 67 | + }, 300); |
| 68 | + |
| 69 | + // 更新解释和SVG |
| 70 | + quoteInterpretation.innerHTML = ` |
| 71 | + <div class="interpretation-title">箴言新解 / Proverbs Insights:</div> |
| 72 | + <p class="interpretation-chinese">${quote.interpretation.zh || 'TODO'}</p> |
| 73 | + <p class="interpretation-english">${quote.interpretation.en || 'TODO'}</p> |
| 74 | + `; |
| 75 | + svgContainer.innerHTML = quote.svg || ''; |
| 76 | + } |
| 77 | + |
| 78 | + function formatSource(source) { |
| 79 | + // 匹配文本中括号内的URL |
| 80 | + const urlRegex = /(.*?)\((https?:\/\/[^\s)]+)\)/g; |
| 81 | + |
| 82 | + return source.replace(urlRegex, (match, text, url) => { |
| 83 | + return `<a href="${url}" target="_blank" rel="noopener noreferrer">${text}</a>`; |
| 84 | + }); |
| 85 | + } |
| 86 | + |
| 87 | + // function drawQuoteCard(quote) { |
| 88 | + // // 设置背景 |
| 89 | + // ctx.fillStyle = '#f8f4e5'; |
| 90 | + // ctx.fillRect(0, 0, canvas.width, canvas.height); |
| 91 | + |
| 92 | + // // 绘制背景图案 |
| 93 | + // drawBackgroundPattern(); |
| 94 | + |
| 95 | + // // 绘制半透明白色背景 |
| 96 | + // ctx.fillStyle = 'rgba(255, 255, 255, 0.7)'; |
| 97 | + // ctx.fillRect(20, 20, canvas.width - 40, canvas.height - 40); |
| 98 | + |
| 99 | + // // 设置字体和颜色 |
| 100 | + // ctx.fillStyle = '#2d3748'; |
| 101 | + |
| 102 | + // // 绘制中文引用 |
| 103 | + // ctx.font = '24px "Ma Shan Zheng"'; |
| 104 | + // let yPos = wrapText(ctx, quote.chinese, 40, 60, canvas.width - 80, 36); |
| 105 | + |
| 106 | + // // 绘制英文引用 |
| 107 | + // ctx.font = '18px "Noto Serif"'; |
| 108 | + // yPos = wrapText(ctx, quote.english, 40, yPos + 20, canvas.width - 80, 28); |
| 109 | + |
| 110 | + // // 绘制作者 |
| 111 | + // if (quote.author) { |
| 112 | + // ctx.font = 'italic 14px "Noto Serif"'; |
| 113 | + // ctx.textAlign = 'right'; |
| 114 | + // ctx.fillText(`— ${quote.author}`, canvas.width - 40, yPos + 30); |
| 115 | + // yPos += 30; |
| 116 | + // } |
| 117 | + |
| 118 | + // // 绘制出处 |
| 119 | + // if (quote.source) { |
| 120 | + // ctx.font = '14px "Noto Serif"'; |
| 121 | + // ctx.fillStyle = '#6b7280'; |
| 122 | + // ctx.textAlign = 'right'; |
| 123 | + // // 对于图片,我们总是显示完整的URL |
| 124 | + // const sourceText = `出处 / Source: ${quote.source}`; |
| 125 | + // ctx.fillText(sourceText, canvas.width - 40, yPos + 20); |
| 126 | + // } |
| 127 | + |
| 128 | + // // 绘制标题和分类 |
| 129 | + // ctx.font = '16px "Ma Shan Zheng"'; |
| 130 | + // ctx.fillStyle = '#2d3748'; // 使用与引用相同的颜色 |
| 131 | + // ctx.textAlign = 'left'; |
| 132 | + // ctx.fillText('Go 语言箴言新解', 40, canvas.height - 20); |
| 133 | + // ctx.textAlign = 'right'; |
| 134 | + // ctx.fillText(quote.category, canvas.width - 40, canvas.height - 20); |
| 135 | + |
| 136 | + // // 绘制新解 |
| 137 | + // yPos += 40; |
| 138 | + // ctx.font = '16px "Noto Serif"'; |
| 139 | + // ctx.fillStyle = '#4a5568'; |
| 140 | + // ctx.textAlign = 'left'; |
| 141 | + // yPos = wrapText(ctx, '箴言新解:', 40, yPos, canvas.width - 80, 24); |
| 142 | + // yPos = wrapText(ctx, quote.interpretation.zh || 'TODO', 40, yPos + 10, canvas.width - 80, 24); |
| 143 | + |
| 144 | + // // 绘制SVG(如果有) |
| 145 | + // if (quote.svg) { |
| 146 | + // yPos += 20; |
| 147 | + // drawSVG(ctx, quote.svg, 40, yPos); |
| 148 | + // } |
| 149 | + // } |
| 150 | + |
| 151 | + // function drawSVG(ctx, svgString, x, y) { |
| 152 | + // // 这个函数需要实现SVG到Canvas的转换 |
| 153 | + // // 由于复杂性,这里只是一个占位符 |
| 154 | + // ctx.font = '14px Arial'; |
| 155 | + // ctx.fillText('SVG图表位置', x, y + 50); |
| 156 | + // } |
| 157 | + |
| 158 | + // function drawBackgroundPattern() { |
| 159 | + // const patternCanvas = document.createElement('canvas'); |
| 160 | + // const patternContext = patternCanvas.getContext('2d'); |
| 161 | + // patternCanvas.width = 100; |
| 162 | + // patternCanvas.height = 100; |
| 163 | + |
| 164 | + // patternContext.fillStyle = '#e6dfcc'; |
| 165 | + // patternContext.globalAlpha = 0.4; |
| 166 | + |
| 167 | + // // 绘制简化版的背景图案 |
| 168 | + // patternContext.beginPath(); |
| 169 | + // patternContext.arc(11, 18, 7, 0, 2 * Math.PI); |
| 170 | + // patternContext.arc(59, 43, 7, 0, 2 * Math.PI); |
| 171 | + // patternContext.arc(34, 90, 3, 0, 2 * Math.PI); |
| 172 | + // patternContext.fill(); |
| 173 | + |
| 174 | + // const pattern = ctx.createPattern(patternCanvas, 'repeat'); |
| 175 | + // ctx.fillStyle = pattern; |
| 176 | + // ctx.fillRect(0, 0, canvas.width, canvas.height); |
| 177 | + // } |
| 178 | + |
| 179 | + // function wrapText(context, text, x, y, maxWidth, lineHeight) { |
| 180 | + // const words = text.split(''); |
| 181 | + // let line = ''; |
| 182 | + // let currentY = y; |
| 183 | + |
| 184 | + // for (let n = 0; n < words.length; n++) { |
| 185 | + // const testLine = line + words[n]; |
| 186 | + // const metrics = context.measureText(testLine); |
| 187 | + // const testWidth = metrics.width; |
| 188 | + // if (testWidth > maxWidth && n > 0) { |
| 189 | + // context.fillText(line, x, currentY); |
| 190 | + // line = words[n]; |
| 191 | + // currentY += lineHeight; |
| 192 | + // } else { |
| 193 | + // line = testLine; |
| 194 | + // } |
| 195 | + // } |
| 196 | + // context.fillText(line, x, currentY); |
| 197 | + // return currentY; // 返回最后一行的 Y 坐标 |
| 198 | + // } |
| 199 | + |
| 200 | + function prevQuote() { |
| 201 | + if (!isAnimating) { |
| 202 | + currentIndex = (currentIndex - 1 + quotes.length) % quotes.length; |
| 203 | + createQuoteCard(quotes[currentIndex], 'prev'); |
| 204 | + } |
| 205 | + } |
| 206 | + |
| 207 | + function nextQuote() { |
| 208 | + if (!isAnimating) { |
| 209 | + currentIndex = (currentIndex + 1) % quotes.length; |
| 210 | + createQuoteCard(quotes[currentIndex], 'next'); |
| 211 | + } |
| 212 | + } |
| 213 | + |
| 214 | + let touchStartX = 0; |
| 215 | + let touchEndX = 0; |
| 216 | + |
| 217 | + // 触摸事件 |
| 218 | + document.addEventListener('touchstart', function(e) { |
| 219 | + touchStartX = e.changedTouches[0].screenX; |
| 220 | + }, false); |
| 221 | + |
| 222 | + document.addEventListener('touchend', function(e) { |
| 223 | + touchEndX = e.changedTouches[0].screenX; |
| 224 | + handleSwipe(); |
| 225 | + }, false); |
| 226 | + |
| 227 | + // 添加按钮点击事件 |
| 228 | + prevButton.addEventListener('click', prevQuote); |
| 229 | + nextButton.addEventListener('click', nextQuote); |
| 230 | + |
| 231 | + // 处理手势滑动 |
| 232 | + document.addEventListener('touchstart', function(e) { |
| 233 | + touchStartX = e.changedTouches[0].screenX; |
| 234 | + }, false); |
| 235 | + |
| 236 | + document.addEventListener('touchend', function(e) { |
| 237 | + touchEndX = e.changedTouches[0].screenX; |
| 238 | + handleSwipe(); |
| 239 | + }, false); |
| 240 | + |
| 241 | + function handleSwipe() { |
| 242 | + if (isAnimating) return; |
| 243 | + const swipeThreshold = 50; // 最小滑动距离 |
| 244 | + if (touchEndX < touchStartX - swipeThreshold) { |
| 245 | + nextQuote(); // 左滑,下一个引用 |
| 246 | + } |
| 247 | + if (touchEndX > touchStartX + swipeThreshold) { |
| 248 | + prevQuote(); // 右滑,上一个引用 |
| 249 | + } |
| 250 | + } |
| 251 | + |
| 252 | + // 处理回到顶部按钮 |
| 253 | + window.addEventListener('scroll', function() { |
| 254 | + if (window.pageYOffset > 300) { |
| 255 | + backToTopButton.style.display = 'flex'; |
| 256 | + } else { |
| 257 | + backToTopButton.style.display = 'none'; |
| 258 | + } |
| 259 | + }); |
| 260 | + |
| 261 | + backToTopButton.addEventListener('click', function() { |
| 262 | + window.scrollTo({ top: 0, behavior: 'smooth' }); |
| 263 | + }); |
| 264 | + |
| 265 | + // 初始化第一个引用 |
| 266 | + createQuoteCard(quotes[0]); |
| 267 | + }) |
| 268 | + .catch(error => { |
| 269 | + console.error('There was a problem with the fetch operation:', error); |
| 270 | + }); |
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