bizzleandClaude Opus 4.8
4036ad5839
Brings the share build up to date with the main project: QTI .zip export and optional direct Canvas API push, plus the Canvas settings card. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
50 lines
2.1 KiB
JavaScript
50 lines
2.1 KiB
JavaScript
// lib/canvas/export.js — assemble a Canvas QTI .zip from an assignment and download it.
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// Client-side only (like lib/exporter.js): no data leaves the browser.
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import { mapAssignmentToCanvas } from "./map";
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import { renderAssessmentXml } from "./qti";
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import { renderManifest, renderAssessmentMeta } from "./manifest";
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import { storeZip } from "./zip";
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// A QTI identifier must be a valid NCName-ish token (starts with a letter, no spaces).
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function slugIdent(seed) {
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const clean = String(seed || "").replace(/[^a-zA-Z0-9]/g, "");
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return "g" + (clean || "quiz");
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}
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function safeName(title) {
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const base = String(title || "quiz")
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.replace(/[^\w\- ]+/g, "").trim().replace(/\s+/g, "-").slice(0, 60) || "quiz";
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return `${base}-canvas.zip`;
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}
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// Build the package in memory. Returns { bytes: Uint8Array, ir, files } — pure, testable.
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export function buildCanvasPackage(assignment, opts = {}) {
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const ir = mapAssignmentToCanvas(assignment, opts);
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const assessmentIdent = slugIdent(assignment?.id || assignment?.title);
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const manifestIdent = "m" + assessmentIdent;
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const files = [
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{ name: "imsmanifest.xml", data: renderManifest(assessmentIdent, manifestIdent) },
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{ name: `${assessmentIdent}/${assessmentIdent}.xml`, data: renderAssessmentXml(ir, assessmentIdent) },
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{ name: `${assessmentIdent}/assessment_meta.xml`, data: renderAssessmentMeta(ir, assessmentIdent) },
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];
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return { bytes: storeZip(files), ir, files };
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}
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function download(filename, blob) {
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const a = document.createElement("a");
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a.href = URL.createObjectURL(blob);
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a.download = filename;
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document.body.appendChild(a);
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a.click();
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setTimeout(() => { URL.revokeObjectURL(a.href); a.remove(); }, 800);
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}
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// Build and trigger the browser download. Returns the IR (so callers can show a summary).
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export function exportCanvasZip(assignment, opts = {}) {
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const { bytes, ir } = buildCanvasPackage(assignment, opts);
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// Copy into a fresh ArrayBuffer so Blob gets a clean, correctly-sized buffer.
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const blob = new Blob([bytes.slice()], { type: "application/zip" });
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download(safeName(assignment?.title), blob);
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return ir;
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}
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