Code Mala Tang

Nov 7, 2025 · Frontend Development

Smooth Canvas Drag & Zoom on Mobile Using Fabric.js and CSS Transform

To enable fluid dragging and zooming of a Fabric.js seat‑layout canvas on mobile, the author replaces costly canvas viewport transforms with CSS transform translate/scale, adds mouse and touch handlers, debounces scaling, disables object caching, caps offsets, and throttles events, achieving smooth performance across browsers.