RetroPad · Multi-Tap Numpad

Problem

Initial situation

Local use under limited browser/resource conditions requires explicit fallbacks and limited approvals.

Constraints

Boundary conditions

• No persistent text storage
• No guarantee for arbitrarily small screens; clipboard/audio depend on the browser

Solution

Solution

Small local text entry tool with multi-tap, undo and manual copy fallback.

Architecture

Architecture

• ES5 / local assets
• RAM-based text state
• Native input / manual copy dialog

Result

Result

Repair report: fixes for 24 findings, 53 passing tests and 101 passing layout states; not rerun here. Confirmed by the user on October 29: error-free execution tested and documented on an HTC with custom ROM / Android 4.1 under Firefox. No blanket Android 4 or iOS approval; exact device/ROM/Firefox versions not specified here.