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fix: enhanced HTML decoding and code fence stripping in AIAssist preview

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This commit is contained in:
Gemini AI
2025-12-28 11:54:28 +04:00
Unverified
parent a2d381cfb7
commit d9c6baaa65
1 changed files with 41 additions and 6 deletions
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47
components/AIAssist.tsx
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@@ -41,7 +41,16 @@ const LiveCanvas = memo(({ data, type, isStreaming }: { data: string, type: stri
if (!iframeRef.current) return;
const isHtml = data.includes("<") && data.includes(">");
const shouldRender = isHtml || ["web", "app", "design", "html", "ui"].includes(type);
const isEncodedHtml = data.includes("&lt;") && data.includes("&gt;");
const shouldRender = isHtml || isEncodedHtml || ["web", "app", "design", "html", "ui"].includes(type);
const normalized = isEncodedHtml
? data
.replace(/&lt;/g, "<")
.replace(/&gt;/g, ">")
.replace(/&amp;/g, "&")
.replace(/&quot;/g, "\"")
.replace(/&#39;/g, "'")
: data;
if (shouldRender) {
const doc = `
<!DOCTYPE html>
@@ -79,7 +88,7 @@ const LiveCanvas = memo(({ data, type, isStreaming }: { data: string, type: stri
</style>
</head>
<body class="bg-[#0b1414] text-emerald-50">
${data}
${normalized}
</body>
</html>
`;
@@ -118,6 +127,16 @@ function parseStreamingContent(text: string) {
let agent = "general";
let preview: PreviewData | null = null;
let chatDisplay = text.trim();
const decodeHtml = (value: string) => value
.replace(/&lt;/g, "<")
.replace(/&gt;/g, ">")
.replace(/&amp;/g, "&")
.replace(/&quot;/g, "\"")
.replace(/&#39;/g, "'");
const stripFences = (value: string) => {
const fenced = value.match(/```(?:html|css|javascript|tsx|jsx|md|markdown)?\s*([\s\S]*?)```/i);
return fenced ? fenced[1].trim() : value.trim();
};
const jsonCandidate = text.trim();
if (jsonCandidate.startsWith("{") && jsonCandidate.endsWith("}")) {
@@ -173,6 +192,13 @@ function parseStreamingContent(text: string) {
}
}
if (preview) {
const isHtmlLike = ["web", "app", "design", "html", "ui"].includes(preview.type) || preview.language === "html";
if (isHtmlLike) {
preview.data = decodeHtml(stripFences(preview.data));
}
}
if (!chatDisplay && preview) {
chatDisplay = `Rendering live artifact...`;
}
@@ -204,7 +230,10 @@ export default function AIAssist() {
const scrollRef = useRef<HTMLDivElement>(null);
const canRenderPreview = previewData
? ["web", "app", "design", "html", "ui"].includes(previewData.type) || previewData.data.includes("<")
? ["web", "app", "design", "html", "ui"].includes(previewData.type)
|| previewData.data.includes("<")
|| previewData.language === "html"
|| (previewData.data.includes("&lt;") && previewData.data.includes("&gt;"))
: false;
// Auto-scroll logic
@@ -219,9 +248,9 @@ export default function AIAssist() {
useEffect(() => {
if (previewData?.data) {
setViewMode("preview");
setViewMode(canRenderPreview ? "preview" : "code");
}
}, [previewData?.data]);
}, [previewData?.data, canRenderPreview]);
// Load available models
useEffect(() => {
@@ -478,7 +507,13 @@ export default function AIAssist() {
size="sm"
className="mt-5 w-full bg-emerald-50 dark:bg-emerald-900/30 border border-emerald-200/60 dark:border-emerald-800 text-emerald-700 dark:text-emerald-200 font-black uppercase tracking-[0.1em] text-[10px] rounded-2xl h-11 hover:scale-[1.02] active:scale-[0.98] transition-all"
onClick={() => {
setPreviewData({ ...msg.preview!, isStreaming: false });
const nextPreview = { ...msg.preview!, isStreaming: false };
setPreviewData(nextPreview);
const nextCanRender = ["web", "app", "design", "html", "ui"].includes(nextPreview.type)
|| nextPreview.data.includes("<")
|| nextPreview.language === "html"
|| (nextPreview.data.includes("&lt;") && nextPreview.data.includes("&gt;"));
setViewMode(nextCanRender ? "preview" : "code");
setShowCanvas(true);
}}
>