') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); })(); feat(app): add markdown preview with mermaid diagram support by Kiruno-lz · Pull Request #23688 · anomalyco/opencode · GitHub
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feat(app): add markdown preview with mermaid diagram support - #23688

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Kiruno-lz wants to merge 6 commits into
anomalyco:devfrom
Kiruno-lz:feat/markdown-preview
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feat(app): add markdown preview with mermaid diagram support#23688
Kiruno-lz wants to merge 6 commits into
anomalyco:devfrom
Kiruno-lz:feat/markdown-preview

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@Kiruno-lz

@Kiruno-lzKiruno-lz commented Apr 21, 2026

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Issue for this PR

#13704
#16782
#22079

Closes#14187

Type of change

  • Bug fix
  • New feature
  • Refactor / code improvement
  • [] Documentation

What does this PR do?

  • Adds mermaid (v11.4.1) as a dependency
  • When viewing markdown files in preview mode, ```mermaid code blocks are automatically rendered as SVG diagrams
  • Maintains backward compatibility with the existing Preview/Source toggle

How did you verify your code works?

local test

Screenshots / recordings

imageimage

Checklist

  • I have tested my changes locally
  • I have not included unrelated changes in this PR

Thanks to

@kimi-chen
@southpolesteve
@alankyshum

alankyshumand others added 4 commits April 16, 2026 21:33
@alankyshum@kimi-chen@Paperclip-Paperclip
feat(app): add markdown preview/source toggle for file tabs
e74fb95
Add a Preview/Source toggle for Markdown files in the session file viewer.
Detects .md/.markdown files and defaults to rendered preview mode.
Auto-switches to Source view when navigating to a comment.
Excludes binary files from the toggle.
Includes i18n translations for all 17 supported locales.
Based on work by @kimi-chen in anomalyco#13704.
Co-authored-by: kimi-chen <kimi-chen@users.noreply.github.com>
Co-Authored-By: Paperclip <noreply@paperclip.ing>
@alankyshum
fix(app): use correct theme CSS classes for markdown toolbar
3cf0eec
- bg-surface → bg-surface-base (fixes transparent toolbar background)
- bg-surface-active → bg-surface-base-active (fixes toggle button state)
- text-text → text-text-base (fixes button text color)
- border-border → border-border-base (fixes toolbar border)
- Add binary content guard on preview Match condition
Fixes rendering issue reported by KnutZuidema where file contents
showed behind the toolbar due to transparent background.
Refs: BLD-1
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@alankyshum
fix(app): use opaque background for markdown toolbar to prevent conte…
3c83bc7
…nt bleed-through
The toolbar used bg-surface-base which resolves to rgba(0,0,0,0.031) — nearly
transparent. When scrolling, file contents were visible behind the sticky
toolbar. Switch to bg-background-base (#f8f8f8/#101010) which is fully opaque,
matching the pattern used by other sticky headers in the app.
@Kiruno-lz
feat(app): add mermaid diagram support in markdown preview
0cf62b5
Adds client-side rendering of mermaid diagrams in the markdown file viewer.
When viewing .md/.markdown files in preview mode, mermaid code blocks are
automatically rendered as SVG diagrams.
Closesanomalyco#14187
@github-actions

github-actionsBot commented Apr 21, 2026

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The following comment was made by an LLM, it may be inaccurate:

I found a potential duplicate:

Related PR:

Why it might be related:
This PR appears to be addressing the same feature - adding Mermaid diagram visualization in markdown. It could be a previous attempt, an alternative implementation, or a related feature that should be checked for overlap with PR #23688.

I recommend checking if #21497 is already merged, closed, or if it's a duplicate that should be consolidated with the current PR.

Kiruno-lz
Kiruno-lz commented Apr 21, 2026
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have reviewed all changes
Except for bun.lock, the other codes are solid.
@adamdotdevin

@ochsec

ochsec commented May 6, 2026

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Can you please merge this? Big quality of life improvement.

@Kiruno-lz

Kiruno-lz commented May 7, 2026

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Can you please merge this? Big quality of life improvement.

exactly,
and seems this feature even supported at open code-cli. Can't believe it..😢

This was referenced May 8, 2026
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@rasperepodvipodvertrasperepodvipodvert mentioned this pull request May 19, 2026
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@Rafik-Belkadi-Reccap

Rafik-Belkadi-Reccap commented May 20, 2026

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any update on this? would be really helpful to merge

@chenjiangui

chenjiangui commented Jun 18, 2026

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急需这个pr

@github-actionsgithub-actionsBot mentioned this pull request Jun 18, 2026
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@MYHZ79

MYHZ79 commented Jul 3, 2026

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hi
is there any update for this feature?

@github-actionsgithub-actionsBot mentioned this pull request Jul 21, 2026
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@github-actionsgithub-actionsBot mentioned this pull request Jul 31, 2026
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[FEATURE]: Add markdown preview toggle in file viewer sidebar

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@Kiruno-lz@ochsec@Rafik-Belkadi-Reccap@chenjiangui@MYHZ79@alankyshum