feat(website): fullscreen zoom viewer for architecture diagrams - #243
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JohannesRudolph wants to merge 1 commit into
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feat(website): fullscreen zoom viewer for architecture diagrams#243JohannesRudolph wants to merge 1 commit into
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Architecture diagrams are wide and detailed, and browser zoom does not help: the page reflows and the diagram stays fitted to its column. Every image in a reference architecture's markdown body now gets a fullscreen viewer with wheel/pinch zoom anchored at the cursor, drag-to-pan, keyboard shortcuts and a link to the raw SVG. Zoom changes the diagram's layout size rather than applying a scale() transform, so the browser re-renders the vector instead of blowing up a bitmap rasterized at fit size — text stays sharp when zoomed in. Mermaid-rendered diagrams go through the same path. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Problem
Users can't zoom into architecture diagrams on reference architecture pages. Browser zoom doesn't help — the page just reflows and the diagram stays fitted to its (fairly narrow) content column. Zooming an
<img>of an SVG via browser zoom also rasterizes it, so labels go blurry.What this does
Every image in a reference architecture's markdown body is wrapped in a figure with a small Fullscreen affordance. Clicking it opens a new shared
mst-diagram-viewerdialog that fills the viewport:+/-/0— 25%–1600%Escto close, live zoom-% readoutZoom resizes the diagram's layout box instead of applying
transform: scale(). A transform would rasterize the SVG once at fit size and blow that bitmap up — exactly the blurry result browser zoom already gives. Resizing makes the browser re-render the vector, so text stays sharp at 500%.Mermaid-rendered diagrams (still supported by the detail page, though reference architectures now commit DOT/SVG) go through the same path and hand the live
<svg>to the viewer.The affordance is always visible rather than hover-only, so it also exists on touch devices.
Verification
Driven in Chrome against the dev server on the STACKIT Landing Zone page:
0reset the view,Escclosed the viewer and left the page diagram intact<svg>, resizes on zoomng buildpasses.ng lintreports the same 27 pre-existing errors with and without this change.Review notes
Left as draft — worth a look at the viewer chrome (toolbar/hint bar styling) before merging, and it's only wired into the reference architecture detail page, the one place that currently renders markdown bodies.
🤖 Generated with Claude Code