feat: add screenshot export to Ruby tab#323
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takaokouji merged 5 commits intodevelopfrom Mar 16, 2026
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Add a camera button above the zoom controls in the Ruby tab that captures the Monaco editor content (including line numbers and furigana annotations) as a PNG image. Uses html-to-image library to capture the editor DOM, temporarily expanding the editor to full content height for long programs. Closes #322 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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🚀 Preview deployed: https://smalruby.jp/smalruby3-editor/feature/ruby-tab-screenshot/ |
Temporarily disable scrollBeyondLastLine before capturing to get tight content height without extra whitespace below the last line. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The screenshot button was added as the first child of zoomControlsWrapper, shifting zoom button indices by 1 in integration test xpath selectors. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Replace fragile button index selectors with data-testid attributes for stable test targeting regardless of button order changes. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add skipFonts option to html-to-image to avoid SecurityError when reading cssRules from Monaco Editor's cross-origin CDN stylesheet. The editor fonts render correctly without web font embedding. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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…tab-screenshot feat: add screenshot export to Ruby tab
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Summary
Ruby タブの Monaco エディタの内容（行番号・ふりがな含む）を PNG 画像として保存する機能を追加。
html-to-imageライブラリで Monaco エディタの DOM をキャプチャImplementation Steps
Definition of Done
Test Plan
Closes #322