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https://github.com/DayuanJiang/next-ai-draw-io.git
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dayuan.jiang
366d9ee4ff
The canvas now fills the window and the chat floats on its right. draw.io is served from our own origin (public/drawio, downloaded at build time and checked against the release's SHA-256), so the app can drive the editor directly: - every AI change becomes a version card with a thumbnail; compare, restore or undo it, and Ctrl+Z on the canvas takes an AI change back in one step - shapes the AI just changed are highlighted on the canvas - selected shapes appear as a chip and are sent to the model - the app's own canvas toolbar, shape library and page tabs replace draw.io's chrome - new start screen, session rename and switcher, open .drawio files - settings split into Models & keys, Appearance, Advanced and About - phones switch between canvas and chat - dark mode keeps the diagram on a white sheet and no longer flashes With an external draw.io (NEXT_PUBLIC_DRAWIO_BASE_URL) the app falls back to draw.io's own toolbar and the features above that need same origin are off. The chat logic moved from the 1500-line chat panel into a chat engine plus small UI components; zustand holds canvas, versions, settings and UI state.
65 lines
2.2 KiB
TypeScript
65 lines
2.2 KiB
TypeScript
import type { UIMessage } from "ai"
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/** A run of plain text, or an attached file / URL whose text was inlined */
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export interface TextSection {
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type: "text" | "file" | "url"
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content: string
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filename?: string
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charCount?: number
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fileType?: "pdf" | "text" | "url"
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}
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// Matches the [PDF: ...], [File: ...] and [URL: ...] sections appended to the user's text
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export const APPENDED_FILE_SECTIONS_PATTERN =
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/\n\n\[(PDF|File|URL):\s*[^\]]+\]\n[\s\S]*$/
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export function splitTextIntoFileSections(text: string): TextSection[] {
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const sections: TextSection[] = []
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const filePattern =
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/\[(PDF|File|URL):\s*([^\]]+)\]\n([\s\S]*?)(?=\n\n\[(PDF|File|URL):|$)/g
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let lastIndex = 0
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let match: RegExpExecArray | null
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while ((match = filePattern.exec(text)) !== null) {
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const beforeText = text.slice(lastIndex, match.index).trim()
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if (beforeText) sections.push({ type: "text", content: beforeText })
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const sectionType = match[1].toLowerCase()
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const fileType =
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sectionType === "pdf"
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? "pdf"
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: sectionType === "url"
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? "url"
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: "text"
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const content = match[3].trim()
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sections.push({
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type: sectionType === "url" ? "url" : "file",
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content,
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filename: match[2].trim(),
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charCount: content.length,
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fileType,
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})
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lastIndex = match.index + match[0].length
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}
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const remainingText = text.slice(lastIndex).trim()
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if (remainingText) sections.push({ type: "text", content: remainingText })
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if (sections.length === 0) sections.push({ type: "text", content: text })
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return sections
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}
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export function getMessageTextContent(message: UIMessage): string {
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if (!message.parts) return ""
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return message.parts
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.filter((part) => part.type === "text")
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.map((part) => (part as { text: string }).text)
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.join("\n")
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}
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/** Only the user's typed text, without appended file content */
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export function getUserOriginalText(message: UIMessage): string {
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return getMessageTextContent(message)
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.replace(APPENDED_FILE_SECTIONS_PATTERN, "")
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.trim()
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}
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