181 lines
4.7 KiB
HTML
181 lines
4.7 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>智能文本区域</title>
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<style>
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.container {
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width: 400px;
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height: 300px;
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margin: 20px;
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border: 1px solid #ddd;
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border-radius: 8px;
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overflow: hidden;
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position: relative;
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}
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.input-box {
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width: 100%;
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height: 100%;
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padding: 10px;
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box-sizing: border-box;
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border: none;
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resize: none;
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outline: none;
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font-family: Arial, sans-serif;
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transition: padding 0.3s ease;
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}
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.input-box.has-files {
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padding-top: 50px;
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}
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.file-list {
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position: absolute;
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top: 0;
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left: 0;
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right: 0;
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padding: 8px 10px;
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background: rgba(255, 255, 255, 0.95);
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border-bottom: 1px solid #eee;
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display: none;
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flex-wrap: wrap;
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gap: 6px;
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max-height: 60px;
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overflow-y: auto;
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}
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.file-list.has-files {
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display: flex;
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}
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.file-item {
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display: flex;
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align-items: center;
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background: #f0f6ff;
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border: 1px solid #c2d9ff;
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border-radius: 15px;
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padding: 4px 12px;
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font-size: 13px;
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animation: slideIn 0.2s ease;
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}
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@keyframes slideIn {
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from { transform: translateY(-10px); opacity: 0; }
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to { transform: translateY(0); opacity: 1; }
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}
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.delete-btn {
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width: 16px;
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height: 16px;
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border: none;
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background: #ff6b6b;
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color: white;
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border-radius: 50%;
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margin-left: 8px;
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cursor: pointer;
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display: flex;
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align-items: center;
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justify-content: center;
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font-size: 12px;
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}
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.delete-btn:hover {
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background: #ff5252;
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}
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.buttons {
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position: absolute;
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bottom: 10px;
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right: 10px;
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display: flex;
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gap: 8px;
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}
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.action-btn {
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padding: 8px 16px;
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background: #4dabf7;
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color: white;
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border: none;
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border-radius: 20px;
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cursor: pointer;
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transition: all 0.2s;
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}
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.action-btn:hover {
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background: #339af0;
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transform: translateY(-1px);
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}
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</style>
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</head>
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<body>
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<div class="container">
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<textarea class="input-box" placeholder="开始输入..."></textarea>
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<div class="file-list" id="fileList"></div>
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<div class="buttons">
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<input type="file" id="fileInput" hidden multiple>
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<button class="action-btn" onclick="document.getElementById('fileInput').click()">📁 选择文件</button>
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<button class="action-btn" onclick="send()">✈️ 发送</button>
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</div>
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</div>
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<script>
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const inputBox = document.querySelector('.input-box');
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const fileInput = document.getElementById('fileInput');
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const fileList = document.getElementById('fileList');
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// 文件选择事件
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fileInput.addEventListener('change', function() {
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updateFileList();
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adjustInputPadding();
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});
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// 动态调整输入框间距
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function adjustInputPadding() {
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inputBox.classList.toggle('has-files', fileInput.files.length > 0);
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fileList.classList.toggle('has-files')
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}
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// 更新文件列表显示
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function updateFileList() {
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fileList.innerHTML = '';
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Array.from(fileInput.files).forEach((file, index) => {
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const item = document.createElement('div');
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item.className = 'file-item';
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item.innerHTML = `
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<span>${file.name}</span>
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<button class="delete-btn" onclick="removeFile(${index})">×</button>
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`;
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fileList.appendChild(item);
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});
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}
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// 删除单个文件
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function removeFile(index) {
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const dt = new DataTransfer();
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Array.from(fileInput.files).forEach((file, i) => {
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if (i !== index) dt.items.add(file);
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});
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fileInput.files = dt.files;
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updateFileList();
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adjustInputPadding();
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}
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// 发送功能
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function send() {
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const text = inputBox.value;
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const files = fileInput.files;
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console.log('文本内容:', text);
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console.log('发送文件:', Array.from(files));
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// 清空内容
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inputBox.value = '';
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fileInput.value = '';
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fileList.innerHTML = '';
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adjustInputPadding();
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}
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</script>
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</body>
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</html> |