feat(iframe): 添加通过URL参数filePath自动加载文件功能
新增demo页面展示iframe加载功能 添加测试数据文件public/test.ocd
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<!doctype html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Canvas Editor Iframe Demo</title>
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<style>
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body { font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial; margin: 0; padding: 16px; }
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.panel { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
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.panel input[type="text"] { width: 420px; padding: 6px 8px; font-size: 12px; }
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.panel button { padding: 6px 12px; font-size: 12px; cursor: pointer; }
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iframe { width: 100%; height: 80vh; border: 1px solid #e2e6ed; }
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small { color: #6b7280; }
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</style>
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</head>
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<body>
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<h3>父页面(同源)加载子页面 index.html(支持 ?filePath=URL)</h3>
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<div class="panel">
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<input id="urlInput" type="text" placeholder="输入同源文件URL或留空使用示例…" />
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<input id="fileInput" type="file" accept=".json,.txt,.ocd" />
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<button id="loadBtn">在 iframe 中打开</button>
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<small>支持传入 JSON(完整编辑器数据)或纯文本(作为正文)。文件将以 blob: URL 形式传递,保证同源。</small>
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</div>
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<iframe id="editorFrame" src="./index.html" referrerpolicy="no-referrer"></iframe>
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<script>
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const editorFrame = document.getElementById('editorFrame')
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const loadBtn = document.getElementById('loadBtn')
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const urlInput = document.getElementById('urlInput')
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const fileInput = document.getElementById('fileInput')
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function setFrameSrc(fileUrl) {
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const src = `./index.html?filePath=${encodeURIComponent(fileUrl)}`
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editorFrame.src = src
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console.log('[demo] 设置 iframe src:', src)
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}
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loadBtn.onclick = async () => {
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const typedUrl = urlInput.value.trim()
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if (typedUrl) {
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// 直接使用同源URL
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try {
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// 试探一次,确保地址有效(可选)
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await fetch(new URL(typedUrl, window.location.href))
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setFrameSrc(typedUrl)
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return
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} catch (e) {
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alert('无法访问该URL,请确认同源且可访问')
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return
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}
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}
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const file = fileInput.files && fileInput.files[0]
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if (file) {
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// 将本地选择的文件转为 blob: URL(同源),传给子页
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const blobUrl = URL.createObjectURL(file)
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setFrameSrc(blobUrl)
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return
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}
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// 示例:使用内置示例JSON字符串构造 Blob
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const example = {
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main: [{ value: 'Hello from iframe demo' }]
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}
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const blob = new Blob([JSON.stringify(example)], { type: 'application/json' })
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const blobUrl = URL.createObjectURL(blob)
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setFrameSrc(blobUrl)
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}
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</script>
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</body>
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</html>
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