chore: release v2.4
- Add theme system (Dark/Light palettes, ModernTheme, ThemeManager) - Add InputDialog, Spinner common view - Add DuplicatesCsvExportService - Refresh views, dialogs, and view models across tabs - Update localization strings (en/fr) - Tweak services (transfer, permissions, search, user access, ownership elevation, bulk operations) Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Dev
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using System.Diagnostics;
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using System.IO;
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using System.Net;
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using System.Text;
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namespace SharepointToolbox.Services.Export;
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/// <summary>
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/// Shared helpers for split report exports: filename partitioning, site label
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/// derivation, and bundling per-partition HTML into a single tabbed document.
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/// </summary>
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public static class ReportSplitHelper
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{
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/// <summary>
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/// Returns a file-safe variant of <paramref name="name"/>. Invalid filename
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/// characters are replaced with underscores; whitespace runs are collapsed.
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/// </summary>
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public static string SanitizeFileName(string name)
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{
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if (string.IsNullOrWhiteSpace(name)) return "part";
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var invalid = Path.GetInvalidFileNameChars();
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var sb = new StringBuilder(name.Length);
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foreach (var c in name)
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sb.Append(invalid.Contains(c) || c == ' ' ? '_' : c);
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var trimmed = sb.ToString().Trim('_');
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if (trimmed.Length > 80) trimmed = trimmed.Substring(0, 80);
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return trimmed.Length == 0 ? "part" : trimmed;
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}
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/// <summary>
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/// Given a user-selected <paramref name="basePath"/> (e.g. "C:\reports\duplicates.csv"),
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/// returns a partitioned path like "C:\reports\duplicates_{label}.csv".
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/// </summary>
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public static string BuildPartitionPath(string basePath, string partitionLabel)
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{
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var dir = Path.GetDirectoryName(basePath);
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var stem = Path.GetFileNameWithoutExtension(basePath);
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var ext = Path.GetExtension(basePath);
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var safe = SanitizeFileName(partitionLabel);
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var file = $"{stem}_{safe}{ext}";
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return string.IsNullOrEmpty(dir) ? file : Path.Combine(dir, file);
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}
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/// <summary>
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/// Extracts the site-collection root URL from an arbitrary SharePoint object URL.
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/// e.g. https://t.sharepoint.com/sites/hr/Shared%20Documents/foo.docx →
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/// https://t.sharepoint.com/sites/hr
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/// Falls back to scheme+host for root site collections.
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/// </summary>
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public static string DeriveSiteCollectionUrl(string objectUrl)
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{
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if (string.IsNullOrWhiteSpace(objectUrl)) return string.Empty;
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if (!Uri.TryCreate(objectUrl, UriKind.Absolute, out var uri))
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return objectUrl.TrimEnd('/');
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var baseUrl = $"{uri.Scheme}://{uri.Host}";
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var segments = uri.AbsolutePath.Trim('/').Split('/', StringSplitOptions.RemoveEmptyEntries);
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if (segments.Length >= 2 &&
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(segments[0].Equals("sites", StringComparison.OrdinalIgnoreCase) ||
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segments[0].Equals("teams", StringComparison.OrdinalIgnoreCase)))
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{
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return $"{baseUrl}/{segments[0]}/{segments[1]}";
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}
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return baseUrl;
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}
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/// <summary>
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/// Derives a short, human-friendly site label from a SharePoint site URL.
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/// Falls back to the raw URL (sanitized) when parsing fails.
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/// </summary>
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public static string DeriveSiteLabel(string siteUrl, string? siteTitle = null)
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{
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if (!string.IsNullOrWhiteSpace(siteTitle)) return siteTitle!;
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if (string.IsNullOrWhiteSpace(siteUrl)) return "site";
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try
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{
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var uri = new Uri(siteUrl);
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var segments = uri.AbsolutePath.Trim('/').Split('/', StringSplitOptions.RemoveEmptyEntries);
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if (segments.Length >= 2 &&
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(segments[0].Equals("sites", StringComparison.OrdinalIgnoreCase) ||
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segments[0].Equals("teams", StringComparison.OrdinalIgnoreCase)))
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{
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return segments[1];
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}
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return uri.Host;
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}
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catch (Exception ex) when (ex is UriFormatException or ArgumentException)
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{
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Debug.WriteLine($"[ReportSplitHelper] DeriveSiteLabel: malformed URL '{siteUrl}' ({ex.GetType().Name}: {ex.Message}) — falling back to raw value.");
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return siteUrl;
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}
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}
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/// <summary>
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/// Generic dispatcher for split-aware export: if
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/// <paramref name="splitMode"/> is not BySite, writes a single file via
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/// <paramref name="writer"/>; otherwise partitions via
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/// <paramref name="partitioner"/> and writes one file per partition,
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/// each at a filename derived from <paramref name="basePath"/> plus the
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/// partition label.
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/// </summary>
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public static async Task WritePartitionedAsync<T>(
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IReadOnlyList<T> items,
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string basePath,
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ReportSplitMode splitMode,
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Func<IReadOnlyList<T>, IEnumerable<(string Label, IReadOnlyList<T> Partition)>> partitioner,
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Func<IReadOnlyList<T>, string, CancellationToken, Task> writer,
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CancellationToken ct)
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{
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if (splitMode != ReportSplitMode.BySite)
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{
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await writer(items, basePath, ct);
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return;
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}
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foreach (var (label, partition) in partitioner(items))
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{
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ct.ThrowIfCancellationRequested();
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var path = BuildPartitionPath(basePath, label);
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await writer(partition, path, ct);
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}
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}
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/// <summary>
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/// Bundles per-partition HTML documents into one self-contained tabbed
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/// HTML. Each partition HTML is embedded in an <iframe srcdoc> so
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/// their inline styles and scripts remain isolated.
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/// </summary>
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public static string BuildTabbedHtml(
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IReadOnlyList<(string Label, string Html)> parts,
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string title)
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{
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var sb = new StringBuilder();
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sb.AppendLine("<!DOCTYPE html>");
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sb.AppendLine("<html lang=\"en\">");
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sb.AppendLine("<head>");
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sb.AppendLine("<meta charset=\"UTF-8\">");
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sb.AppendLine("<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">");
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sb.AppendLine($"<title>{WebUtility.HtmlEncode(title)}</title>");
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sb.AppendLine("""
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<style>
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html, body { margin: 0; padding: 0; height: 100%; font-family: 'Segoe UI', Arial, sans-serif; background: #1a1a2e; }
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.tabbar { display: flex; flex-wrap: wrap; gap: 4px; background: #1a1a2e; padding: 8px; position: sticky; top: 0; z-index: 10; }
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.tab { padding: 6px 12px; background: #2d2d4e; color: #fff; cursor: pointer; border-radius: 4px;
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font-size: 13px; user-select: none; white-space: nowrap; }
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.tab:hover { background: #3d3d6e; }
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.tab.active { background: #0078d4; }
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.frame-host { background: #f5f5f5; }
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iframe { width: 100%; height: calc(100vh - 52px); border: 0; display: none; background: #f5f5f5; }
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iframe.active { display: block; }
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</style>
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</head>
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<body>
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""");
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sb.Append("<div class=\"tabbar\">");
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for (int i = 0; i < parts.Count; i++)
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{
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var cls = i == 0 ? "tab active" : "tab";
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sb.Append($"<div class=\"{cls}\" onclick=\"showTab({i})\">{WebUtility.HtmlEncode(parts[i].Label)}</div>");
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}
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sb.AppendLine("</div>");
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for (int i = 0; i < parts.Count; i++)
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{
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var cls = i == 0 ? "active" : string.Empty;
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var escaped = EscapeForSrcdoc(parts[i].Html);
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sb.AppendLine($"<iframe class=\"{cls}\" srcdoc=\"{escaped}\"></iframe>");
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}
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sb.AppendLine("""
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<script>
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function showTab(i) {
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var frames = document.querySelectorAll('iframe');
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var tabs = document.querySelectorAll('.tab');
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for (var j = 0; j < frames.length; j++) {
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frames[j].classList.toggle('active', i === j);
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tabs[j].classList.toggle('active', i === j);
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}
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}
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</script>
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</body></html>
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""");
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return sb.ToString();
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}
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/// <summary>
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/// Escapes an HTML document so it can safely appear inside an
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/// <iframe srcdoc="..."> attribute. Only ampersands and double
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/// quotes must be encoded; angle brackets are kept literal because the
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/// parser treats srcdoc as CDATA-like content.
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/// </summary>
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private static string EscapeForSrcdoc(string html)
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{
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if (string.IsNullOrEmpty(html)) return string.Empty;
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return html
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.Replace("&", "&")
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.Replace("\"", """);
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}
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}
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