project-manifold

Good, make a little slider for the size of font previews and also for image previews. Separate.

Add state variables for preview sizes:

Add sliders to section headers and use sizes in templates:

Now apply sizes to image cards and font previews:

Now add styles for the new elements:

Also need to remove hardcoded image card width and make it flexible:

• In font preview, chars that are not present in the font are rendered in different font. Breaks a little the style. Is it possible to ignore those chars instead?
• for images, thumbnail size works, but they start overlapping each other, not flowing one after the other.
• Make top header a little nicer. remove the blue tint, make it more gray or something.
• Remove move +10 +10 button from the Page view
• Rename Page to canvas, also update the route
• element list now overflows the container horizontally and create a horizontal scrollbar. Fix.

Let me check all the files I need to touch:

Now let me fix everything:

1. Font preview — hide chars not in font:

Using only basic Latin chars that virtually all fonts have. The em-dash and special chars were the problem.

2. Image grid overflow — add proper wrapping:

The grid uses minmax(120px, 1fr) but the image card width is now dynamic via inline style. The grid columns need to respect the slider:

Also remove the unused move function:

Also fix the list-area to prevent horizontal overflow:

Now build and deploy:

GitHub internal error — let me retry:

Dragging top right corner, when aspect ratio locked, does some weird resize

The problem is with ne (top-right) corner: dragging right increases dx (positive) but dragging up decreases dy (negative). The aspect ratio logic blindly syncs them, but for ne and sw the x and y directions are opposite. Let me look at BoxEdit's moveEditPoint for ne:

For ne: y: data.y + y, height: data.height - y, width: data.width + x. So positive dx = wider, negative dy = taller (y moves up, height increases). When aspect ratio is locked and dragging right (dx > 0), dy should be negative (to grow height upward). But current code sets dy = dx / aspect which gives positive dy — shrinking height instead.

Try to tackle as many open issues as possible

On it! 13 open issues — closed 3 that were already fixed (#20 NodeList gone, #2 test endpoint gone, #7 addShape already supports all types).

Working on the remaining 10 in 3 parallel PRs:
• Security + cleanup: upload size limit (#1), remove hardcoded rect content (#19)
• Performance + WS: O(n²) property resolution (#10), consolidate WS init (#12)
• Features: Group rendering (#4), line resize (#13), text editing UI (#14), rect selection (#21)

Will also look at #6 (WS collab) and #16 (tests) after these land.

Any progress?

Deployed :whitecheckmark: https://manifold.sandscape.cc

PR #51 merged, 7 issues closed. Let me also close the sub-agent PRs that are now stale, then deploy and update Marian.

Now deploy:

Seems like the dokku push is taking a while (building Docker). Let me reply to Marian while it deploys:

Now let me wait for the deploy to finish:

Deployed successfully.

Now let me update memory with the current state:

Ok, any issues left?

Make analysis about how we should make multi-user/multiplayer edits / realtime collaboration in our product. Would it be different if we aimed at 2-3 users max, 5-10 or 100+?
Put analysis report into md doc into the repo. Make sure to be thorough and try to use as much of existing previous art as possible

Let me first understand our current WebSocket infrastructure and state model, then research collaboration approaches.

Now let me research the major collaboration approaches:

No web search available. I know this domain well enough. Let me also check what npm packages are already in the project:

Good — we already have ws and socket.io as dependencies. Now let me write the analysis document:

No web search available ? what?

• pasted image should go at the top and at the mouse position (centered)
• foreign object content disappear (did we delete the content or is that just bug?)

Let me fix the paste-at-cursor issue now. I need to look at PasteManager and how images get added:

Now let me check how the Editor/Manifold tracks mouse position and handles image drops:

Drop already works with canvas position. The issue is paste (PasteManager) — it doesn't know the mouse position and defaults to (50, 50). Also, pasted images go to the bottom of the stack (array end renders on top actually — let me check):

Elements are reversed for rendering — so the last element in the array renders first (at the bottom visually). To make a pasted image appear "at the top" (visually on top), it needs to be first in the array, not last. Currently addShape pushes to the end, which means it renders at the bottom. Wait — SVG renders in document order, so later elements are on top. But we reverse... so elements[0] renders last (on top) and elements[last] renders first (on bottom).

So addShape pushing to the end → after reverse → renders first → visually on bottom. Marian wants it at the top. We need to either unshift or add to the beginning.

Let me fix both issues: (1) paste at mouse position, (2) pasted/dropped images at visual top (beginning of array).

First, make PasteManager aware of canvas mouse position. The simplest approach: track the last known mouse position on the SVG canvas and pass it to PasteManager. Let me look at how Manifold tracks mouse:

The simplest approach: expose the viewport's screenToCanvas from Manifold, and track last mouse position at the Editor level for PasteManager. Actually, even simpler — just track last mouse position on document and let PasteManager convert it. But PasteManager doesn't have access to the viewport transform.

Better approach: Move paste handling into Editor (which already has handleImageDrop) and pass a getCanvasCenter or lastCanvasPos function. Let me refactor PasteManager to accept an onPaste callback:

I need to:

1. Track mouse position in Manifold and expose it
2. Pass paste handler from Editor that uses canvas coordinates
3. Add elements to the beginning of the array (visual top)
Let me take a simpler approach — track last mouse position at window level and expose viewport transform from Manifold:

Simplest approach: make PasteManager accept an optional getCanvasPosition callback and expose a lastMousePosition from Manifold.

Actually, the cleanest approach: move paste image handling entirely to Editor/Manifold where we already have canvas coordinate access, and make PasteManager just a thin event forwarder.

Let me refactor:

Now I need Manifold to expose the last known mouse canvas position. Let me add that:

I need to track the last mouse canvas position and expose it. Let me add it to Manifold and pass it up:

Now add canvas position tracking in handleMouseMove: