{"id":12309,"date":"2026-08-28T18:14:29","date_gmt":"2026-08-28T10:14:29","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=12309"},"modified":"2026-08-28T18:14:29","modified_gmt":"2026-08-28T10:14:29","slug":"html-in-canvas","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2026\/08\/html-in-canvas\/","title":{"rendered":"\u8d85\u7ea7Web\u7279\u6027HTML-in-Canvas\u521d\u4f53\u9a8c"},"content":{"rendered":"

by zhangxinxu<\/a> from https:\/\/www.zhangxinxu.com\/wordpress\/?p=12309<\/a>
\n\u672c\u6587\u53ef\u5168\u6587\u8f6c\u8f7d\uff0c\u4f46\u9700\u8981\u4fdd\u7559\u539f\u4f5c\u8005\u3001\u51fa\u5904\u4ee5\u53ca\u6587\u4e2d\u94fe\u63a5\uff0cAI\u6293\u53d6\u4fdd\u7559\u539f\u6587\u5730\u5740\uff0c\u4efb\u4f55\u7f51\u7ad9\u5747\u53ef\u6458\u8981\u805a\u5408\uff0c\u5546\u7528\u8bf7\u8054\u7cfb\u6388\u6743\u3002<\/p>\n

\u4e00\u3001\u7b49\u4e0d\u53ca\u4e86<\/h3>\n

Chrome 150+\u4e4b\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7\u5f00\u542f#canvas-draw-element<\/code>\u7279\u6027\u4f53\u9a8cHTML-in-Canvas\u7684\u795e\u5947\u6548\u679c\u3002<\/p>\n

Chrome\u5730\u5740\u680f\u8f93\u5165\u4e0b\u9762\u4ee3\u7801\u53ef\u5f00\u542f\uff1a<\/p>\n

chrome:\/\/flags\/#canvas-draw-element<\/pre>\n
\"HTML-in-Canvas\u5f00\u542f\u793a\u610f\"<\/p>\n
\u901a\u5e38Web\u65b0\u7279\u6027\u90fd\u90fd\u8981\u7b49\u6d4f\u89c8\u5668\u6b63\u5f0f\u652f\u6301\u624d\u4ecb\u7ecd\u3002<\/p>\n
\u4f46\u662f\u8fd9\u6b21\u7684\u8fd9\u4e2a\u7279\u6027\uff0c\u5b9e\u5728\u662f\u7b49\u4e0d\u53ca\u4e86\u3002<\/p>\n
\u5728\u8fc7\u53bb\uff0cCanvas\u91cc\u9762\u5b9e\u73b0\u5143\u7d20\u52a8\u6548\u662f\u9ebb\u70e6\u7684\uff0c\u5570\u55e6\u7684\uff0c\u5f80\u5f80\u9700\u8981\u501f\u52a9\u7b2c\u4e09\u65b9\u7684\u7ec4\u4ef6\u3002<\/p>\n
\u800cCSS\u5b9e\u73b0\u52a8\u753b\u52a8\u6548\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n
\u73b0\u5728\uff0c\u6709\u4e86HTML-in-Canvas\uff0c\u6240\u6709\u7684Web\u52a8\u6548\uff0c\u5305\u62ecSVG\u52a8\u6548\uff0c\u90fd\u53ef\u4ee5\u65e0\u7f1d\u63a5\u5165\u5230Canvas\u4e2d\uff0cCanvas\u7684\u5e94\u7528\u80fd\u529b\u76f4\u63a5\u98d9\u5347\u3002<\/p>\n
\u6bd4\u65b9\u8bf4HTML\u539f\u751f\u7684<dialog><\/code>\u5f39\u6846\u4f7f\u7528\u975e\u5e38\u65b9\u4fbf\uff0c\u4e8e\u662f\uff0c\u8fc7\u53bb\uff0cWebGL\/Canvas \u6e38\u620f\u4e2d\u7684\u5f39\u7a97\u548c\u63d0\u793a\u9762\u677f\u5c31\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528HTML <dialog><\/code>\u5143\u7d20\uff0c\u800c\u65e0\u9700\u50cf\u4ee5\u524d\u4e00\u6837\u91cd\u5199\u4e00\u5957\u6e38\u620f UI \u4ea4\u4e92\uff1a<\/p>\n
    \n
  1. \u6e38\u620f\u5916\u60ac\u6d6e DOM\uff1a\u5f39\u7a97\u8ddf\u968f\u6e38\u620f\u89c6\u53e3\u7f29\u653e\u5f88\u9ebb\u70e6\uff1b\u6e38\u620f\u753b\u5e03\u62d6\u52a8\u7f29\u653e\u65f6 DOM \u540c\u6b65\u6210\u672c\u9ad8\u3002<\/li>\n
  2. \u624b\u5199\u7ed8\u56fe API \u7ed8\u5236 UI\uff1a\u6210\u672c\u6781\u9ad8\uff0c\u4e0d\u80fd\u590d\u7528\u73b0\u6709\u7ec4\u4ef6\u5e93\u3002<\/li>\n<\/ol>\n
    \u53c8\u6bd4\u5982HTML\u8f6c\u56fe\u7247\u8fd9\u4e2a\u529f\u80fd\u3002<\/p>\n
    \u4e4b\u524d\u6211\u4eec\u5927\u591a\u4f7f\u7528 html2canvas \u8fd9\u4e2a\u9879\u76ee\uff0c\u7b80\u5355\u70b9\u7684\u4f1a\u501f\u52a9SVG <forginObject><\/code>\u5143\u7d20\u5b9e\u73b0\uff08\u8be6\u89c1\u201cSVG foreignObject\u7b80\u4ecb\u4e0e\u622a\u56fe\u7b49\u5e94\u7528<\/a>\u201d\u6b64\u6587\uff09\u3002<\/p>\n
    \u4f46\u662fhtml2canvas\u8fd8\u6709\u4e0d\u652f\u6301CSS\u9525\u5f62\u6e10\u53d8\uff0c\u4e00\u4e9bCSS\u6df7\u5408\u6a21\u5f0f\u6548\u679c\u4e0d\u652f\u6301\u7684\u95ee\u9898\u3002<\/p>\n
    \u73b0\u5728\u53c8\u4e86HTML-in-Canvas\uff0c\u7b49\u4e8e\u539f\u751f\u6709\u4e86HTML\u8f6c\u56fe\u7247\u7684\u80fd\u529b\uff0c\u65e2\u5168\u9762\uff0c\u53c8\u9ad8\u6027\u80fd\uff0chtml2canvas\u76f4\u63a5\u53ef\u4ee5\u8bf4\u62dc\u62dc\u4e86\u3002<\/p>\n
    \u4e8c\u3001\u4f7f\u7528\u975e\u5e38\u7b80\u5355<\/h3>\n
    \u5c06HTML\u7ed8\u5236\u5728Canvas\u4e0a\u7684\u4ee3\u7801\u975e\u5e38\u7b80\u5355\uff0c\u51e0\u884c\u4ee3\u7801\u7684\u4e8b\u60c5\u3002<\/p>\n
    \u6700\u6838\u5fc3\u7684\u4e00\u884c\u4ee3\u7801\u5c31\u662f\uff1a<\/p>\n
    canvas.getContext('2d').drawElementImage(htmlElement, 0, 0);<\/pre>\n
    \u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n
    Chrome\u5f00\u53d1\u8005\u793e\u533a\u63d0\u4f9b\u4e86\u5f88\u591aHTML-in-Canvas\u7684\u6848\u4f8b\uff1ahttps:\/\/chrome.dev\/html-in-canvas\/<\/a><\/p>\n
    \"HTML-in-Canvas\u6848\u4f8b\"<\/p>\n
    \u53ef\u4ee5\u770b\u5230\uff0c\u65e0\u8bba\u662fVideo\u89c6\u9891\u3001Form\u8868\u5355\u8fd8\u662fiframe\u5185\u5d4c\u6846\u67b6\uff0c\u90fd\u53ef\u4ee5\u7ed8\u5236\u5728Canvas\u753b\u5e03\u4e0a\u3002<\/p>\n
    \u800c\u4e14\u76ee\u524d\u4e3b\u6d41\u7684\u524d\u7aef3D\u5f00\u53d1\u6846\u67b6\uff0c\u5982There.js\u3001Pixi.js\u90fd\u5df2\u7ecf\u52a0\u5165\u4e86\u5bf9HTML-in-Canvas\u7684\u652f\u6301\u3002<\/p>\n
    \u6240\u8c13\u5b9e\u8df5\u51fa\u771f\u77e5\uff0c\u770b\u522b\u4eba\u5199\u7684Demo\uff0c\u4e0d\u5982\u81ea\u5df1\u5199\u4e2aDemo\u3002<\/p>\n
    \u8111\u7b4b\u4e00\u8f6c\uff0c\u4e0d\u59a8\u8bd5\u8bd5\u770b\u80fd\u4e0d\u80fd\u628aLuLu UI\u7684\u8868\u5355\u9a8c\u8bc1\u76f4\u63a5\u642c\u5230Canvas\u753b\u5e03\u4e0a\u3002<\/p>\n
    \u6848\u4f8b<\/h4>\n
    \u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1aHTML in Canvas \u7ed8\u5236LuLu UI\u8868\u5355\u7ec4\u4ef6\u6f14\u793a\u9875\u9762<\/a><\/p>\n
    \u53ef\u4ee5\u770b\u5230\uff0c\u8868\u5355\u4e0d\u4ec5\u6e32\u67d3\u4e86\uff0c\u7279\u4e48\u7684\u81ea\u5b9a\u4e49\u7684JS\u9a8c\u8bc1UI\u5c45\u7136\u4e5f\u4e00\u8d77\u5e26\u5230Canvas\u91cc\u9762\u53bb\u4e86\u3002<\/p>\n
    \u771f\u662f\u725b\u4e86\u4e2a\u5927\u53d1\u4e86\uff01<\/p>\n
    \"\u8868\u5355\u6548\u679c\u4e0e\u9a8c\u8bc1\u63d0\u793a\"<\/p>\n
    \u76f8\u5173\u7684\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n
    <canvas id=\"canvas\" style=\"width: 100%;\" layoutsubtree>\r\n<form id=\"validateForm\" is-validate>\r\n    ...\u7565...\r\n<\/form>\r\n<\/canvas>\r\n<script>\r\n    const pixelRatio = window.devicePixelRatio || 1;\r\n    const canvas = document.getElementById('canvas');\r\n    const validateForm = document.getElementById('validateForm');\r\n    canvas.style.width = validateForm.offsetWidth + 'px';\r\n    canvas.style.height = validateForm.offsetHeight + 'px';\r\n    canvas.width = canvas.clientWidth * pixelRatio;\r\n    canvas.height = canvas.clientHeight * pixelRatio;\r\n\r\n    const ctx = canvas.getContext('2d');\r\n\r\n    canvas.onpaint = () => {\r\n        ctx.reset();\r\n        ctx.drawElementImage(validateForm, 0, 0);\r\n    };\r\n<\/script><\/pre>\n
    JS\u4e3b\u8981\u505a\u4e24\u4ef6\u4e8b\u60c5\uff0c\u5176\u4e00\uff0c\u8bbe\u7f6e\u5408\u9002\u7684\u5c3a\u5bf8\uff1b\u5176\u4e8c\uff0c\u6e32\u67d3\u3002<\/p>\n
    \u7136\u540e\u5c31\u6ca1\u6709\u7136\u540e\u4e86\uff0c\u5c31\u8fd9\u4e48Easy\uff01<\/p>\n
    \"Nice\u8868\u60c5\u5305\"<\/p>\n
    \u8865\u5145\u8bf4\u660e<\/h4>\n
    – <canvas><\/code>\u5143\u7d20\u4e0a\u8bbe\u7f6e\u7684layoutsubtree<\/code>\u5c5e\u6027\u662f\u5fc5\u987b\u7684\uff0c\u8fd9\u4e2a\u5343\u4e07\u4e0d\u80fd\u5220\u9664\uff0c\u5426\u5219\u662f\u6ca1\u6709\u5b9e\u65f6\u6e32\u67d3\u6548\u679c\u7684\u3002<\/p>\n
    – \u6211\u770b\u5230\u4e0d\u5c11\u6848\u4f8b\uff0c\u5305\u62ec\u5b98\u65b9\u6848\u4f8b\uff0c\u90fd\u5728\u8868\u5355\u5143\u7d20\u4e0a\u8bbe\u7f6e\u4e86drawable<\/code>\u5c5e\u6027\uff0c\u4f46\u662f\u6839\u636e\u81ea\u5df1\u7684\u5b9e\u8df5\uff0c\u6b64\u5c5e\u6027\u4e0d\u8bbe\u7f6e\u4f3c\u4e4e\u4e0d\u5f71\u54cd\u6548\u679c\u3002\u4f46\u662f\u6682\u65f6\u53c8\u6ca1\u6709\u6539\u5c5e\u6027\u76f8\u5173\u7684\u8d44\u6599\uff0c\u6240\u4ee5\uff0c\u5176\u6700\u7ec8\u4f5c\u7528\uff0c\u6682\u65f6\u6211\u4e5f\u4e0d\u6e05\u695a\u3002<\/p>\n
    \u4e09\u3001\u597d\u4e86\uff0c\u6682\u65f6\u5c31\u5148\u8bf4\u8fd9\u4e48\u591a<\/h3>\n
    AI\u7f16\u7a0b\u65f6\u4ee3\uff0c\u6280\u672f\u7ec6\u8282\u6ca1\u5fc5\u8981\u6df1\u7a76\uff0c\u52a0\u4e0a\u672c\u8eab\u76ee\u524d\u517c\u5bb9\u6027\u8fd8\u4e0d\u592a\u597d\uff0c\u6211\u89c9\u5f97\u4e86\u89e3\u8fd9\u4e48\u591a\u5c31\u597d\u4e86\u3002<\/p>\n
    \u9759\u5f85\u6d4f\u89c8\u5668\u5927\u89c4\u6a21\u652f\u6301\u5427\uff01<\/p>\n
    \u6700\u540e\uff0c\u60f3\u95ee\u4e0b\u5927\u5bb6\uff0c\u76ee\u524d\u8fd8\u6709\u54ea\u4e9b\u524d\u7aef\u5468\u520a\u8fd8\u5728\u66f4\u65b0\u7684\u5417\u2753<\/p>\n
    \u53d1\u73b0AI\u7f16\u7801\u6765\u4e86\u4e4b\u540e\uff0c\u5f88\u591a\u90fd\u505c\u66f4\u4e86\uff0c\u96be\u9053\u524d\u7aef\u8fd9\u4e2a\u884c\u4e1a\u8fd9\u662f\u81ea\u6b64\u4e0d\u518d\u4e0a\u8fdb\u4e86\u5417\uff1f \u200b\u200b\u200b<\/p>\n
    \ud83e\udd14<\/span><\/p>\n
    \u672c\u6587\u4e3a\u539f\u521b\u6587\u7ae0\uff0c\u4f1a\u7ecf\u5e38\u66f4\u65b0\u77e5\u8bc6\u70b9\u4ee5\u53ca\u4fee\u6b63\u4e00\u4e9b\u9519\u8bef\uff0c\u56e0\u6b64\u8f6c\u8f7d\u8bf7\u4fdd\u7559\u539f\u51fa\u5904\uff0c\u65b9\u4fbf\u6eaf\u6e90\uff0c\u907f\u514d\u9648\u65e7\u9519\u8bef\u77e5\u8bc6\u7684\u8bef\u5bfc\uff0c\u540c\u65f6\u6709\u66f4\u597d\u7684\u9605\u8bfb\u4f53\u9a8c\u3002
    \n\u672c\u6587\u5730\u5740\uff1a    https:\/\/www.zhangxinxu.com\/wordpress\/?p=12309<\/a><\/p>\n
    \uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"
    \"HTML-in-Canvas\u5c01\u9762\u56fe\"<\/p>\n
    HTML-in-Canvas\u8fd9\u4e2a\u7279\u6027\u592a\u7279\u4e48\u5f3a\u4e86\uff0c\u6211\u4ece\u672a\u60f3\u8fc7Canvas\u8fd8\u6709\u8fd9\u6837\u7684\u80fd\u529b\uff0c\u73b0\u5728Chrome\u6d4f\u89c8\u5668\u5c45\u7136\u5b9e\u73b0\u4e86\uff0c\u8d76\u5feb\u8fdb\u6765\u4e00\u770b\u7a76\u7adf\u5427\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[53,2156,2157,1064,9,2154,1629,2099,2155],"_links":{"self":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/12309"}],"collection":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/comments?post=12309"}],"version-history":[{"count":5,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/12309\/revisions"}],"predecessor-version":[{"id":12378,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/posts\/12309\/revisions\/12378"}],"wp:attachment":[{"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/media?parent=12309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/categories?post=12309"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zhangxinxu.com\/wordpress\/wp-json\/wp\/v2\/tags?post=12309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}