mirror of
https://github.com/Ark0N/Codeman.git
synced 2026-10-03 22:19:42 +02:00
Codeman maintainer
57899f879e
An iOS-style focus pull: the thing arrives out of focus and the blur fades off it as the opacity comes up. Opacity leads the blur (full opacity around 45%, blur still lifting), which is what separates it from a cross-fade. Ships on tabs (440ms), agent windows (560ms), the terminal pane (520ms) and connection lines (380ms), plus a `Soft focus` theme that sets all four. Default stays `legacy`, so an untouched install is unchanged. The terminal pane is the one surface that cannot blur itself the documented way, and `blur` takes a deliberate exception to the "never a filter on .terminal-container" rule. Every alternative was measured against a live xterm and does not work: a backdrop-filter veil on ::before blurs perfectly while STATIC, and Chrome silently drops the backdrop the moment ANY animation runs on that pseudo-element (the veil computes blur(15.3px) while the text behind it stays razor sharp); driving the radius from rAF buys the same full-screen blur per frame plus main-thread work. The cost the rule exists to avoid is inherent to blurring a terminal, so the style buys it knowingly: opt-in, off by default, one ~520ms run per session open, class straight back off, will-change still unset. Worst-case price, headless SwiftShader with no GPU: frame deltas 16.7ms -> 33.3ms for the run, against 16.7ms flat for `fade`. cols x rows measured unchanged at 178x38 before, during and after, so FitAddon never sees it. The line entrance animates `filter` too, where each line already carried its glow. Both kinds now hold it in --line-glow and both keyframes say `blur(N) var(--line-glow)`, so the function lists match and interpolate instead of the glow vanishing for the run and popping back (a lineage line's glow is a different colour, set per element). Its 100% frame omits `opacity` on purpose so the endpoint comes from the element's own resting value: 0.9 subagent, 0.72 lineage, 0.95 working. test/entrance-animations.test.ts is a new static guard over the whole feature, not just this style: the rule -> keyframes -> theme-option chain a style silently does nothing without, the terminal's paint-only property allowlist (the FitAddon rule), the --line-glow contract, and reduced-motion coverage. Mutation-checked both ways. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
