feat(demo): shareable URL state — ?source=<url>&q=<preset>&f=<format>#8
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klappy wants to merge 1 commit into
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feat(demo): shareable URL state — ?source=<url>&q=<preset>&f=<format>#8klappy wants to merge 1 commit into
klappy wants to merge 1 commit into
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The demo page now reads its state from the URL query string and writes it back when controls change. Anyone (Aquifer, an LLM, a person) can deep-link to a specific view of a specific source image: /?source=https://aquifer.klappy.dev/api/images/abc123 /?source=https://example.com/photo.jpg&q=high&f=avif The page URL itself becomes the shareable state. A Share-link button copies the current URL to the clipboard with a toast confirmation, using the modern Clipboard API with execCommand fallback and prompt as a last resort. Round-trip works correctly with source URLs that contain their own query strings (Unsplash ?w=2000, signed URLs, etc.) because URLSearchParams handles the nested encoding cleanly. Implementation: - readUrlState() parses source/q/f from window.location.search - writeUrlState() rebuilds the query string from current control state and uses history.replaceState (not pushState) so the back button still works as expected - applyUrlState() runs on load: if the source matches a dropdown option exactly, it'\''s selected; otherwise it goes in the custom URL field. Quality and format are restored if present. - writeUrlState() runs after every control change and once after initial load (so defaults like q=medium don'\''t pollute the URL) - Share-link button copies current URL with clipboard API + fallbacks The placeholder on the custom URL field now mentions the ?source= shortcut so users discover the feature. No proxy changes. Tests still 29/29.
Deploying with
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| Status | Name | Latest Commit | Preview URL | Updated (UTC) |
|---|---|---|---|---|
| ✅ Deployment successful! View logs |
transcode-mcp | 95431f6 | Commit Preview URL Branch Preview URL |
May 27 2026, 09:54 PM |
This was referenced May 27, 2026
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Why
The demo page is genuinely useful when someone — a person, Aquifer, an LLM, an integration partner — can deep-link to it with their own image. Right now you have to load the page and paste a URL. With this change, the page reads its source from
?source=<url>and any external system can produce shareable links like:The page URL itself becomes the shareable state. Round-trips work even when the source URL has its own query string (Unsplash
?w=2000, signed URLs, etc.).How It Works
?source=,?q=,?f=from the page URL and populate the controls. If the source matches one of the dropdown options exactly, it gets selected; otherwise it goes in the custom URL field. The page then loads the grid with that source.history.replaceState(notpushState, so the back button still works normally — no per-change history pollution).execCommandthen towindow.promptfor environments where clipboard access is blocked. Shows a toast confirmation either way.q=mediumandf=autodon't get written to the URL because they're the defaults — keeps shared links short and human-readable.Aquifer integration
This enables the use case you mentioned: Aquifer or any system pointing at a UBSImages-style image catalog can construct a transcode-mcp link by URL-encoding the source URL into
?source=. The Cloudflare worker's URL parser (fixed in PR #7 for embedded query strings) handles the resulting nested encoding correctly.Branch base
This PR branches off
feat/click-to-zoom-modal(PR #7) because it depends on the demo page changes there. After PR #7 merges, GitHub will auto-update this PR's base to main.Tests
No new tests — this is pure frontend state plumbing. Round-trip verification done via Node script:
Existing 29/29 tests still pass. Typecheck clean.
Note
Low Risk
Frontend-only demo HTML/JS with no server, auth, or data-path changes.
Overview
Adds shareable URL state to the demo page so
?source=,?q=, and?f=deep-link to the same source, quality, and format as the controls. On load, query params populate the dropdown or custom URL field; on control changes,history.replaceStatekeeps the address bar in sync (defaultmedium/autoare omitted from the URL).A Share link secondary button syncs state, copies the current page URL via the Clipboard API with
execCommand/promptfallbacks, and shows a toast for confirmation. Styling addsbtn-secondaryand toast visibility transitions; the custom URL placeholder notes the?source=option.Reviewed by Cursor Bugbot for commit 95431f6. Bugbot is set up for automated code reviews on this repo. Configure here.