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# makeover-webview |
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The webview renderer for |
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[`makeover-layout`](https://makenot.work/git/max/makeover-layout). Emits CSS. |
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## The renderer that needs no palette |
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`makeover-immediate` and `makeover-tui` both take a `Palette`, because egui and |
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a terminal need an actual colour before they can put anything on screen. A |
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webview does not. `var(--surface-raised)` *is* the late binding, and the browser |
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resolves it against whatever the theme layer last wrote onto `:root`. |
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So this crate emits text naming intents and never learns a colour, which is the |
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deferral rule with no adapter in the way. It is also why the webview was always |
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the wrong renderer to derive a vocabulary from: it can express anything, so it |
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never pushes back. |
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## Phase A: the stylesheet only |
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No markup, deliberately. GoingsOn has 145 `innerHTML` sites and Balanced |
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Breakfast 175 `createElement` sites, so moving markup is a migration while |
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adopting a generated stylesheet is a deletion. The apps keep every line of their |
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markup and gain the classes. |
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|
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```css |
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:root { |
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--bevel-raised: inset 1px 1px 0 var(--bevel-light), inset -1px -1px 0 var(--bevel-dark); |
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--bevel-inset: inset 1px 1px 0 var(--bevel-dark), inset -1px -1px 0 var(--bevel-light); |
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} |
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.raised { background: var(--surface-raised); box-shadow: var(--bevel-raised); } |
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.well { background: var(--surface-well, var(--surface-page)); box-shadow: var(--bevel-inset); } |
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.raised:active { box-shadow: var(--bevel-inset); } |
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``` |
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Those two custom properties are byte-identical to what both apps already |
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hand-write, which is asserted in the tests. Adoption removes duplicated lines |
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rather than changing a pixel. |
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`.raised:active` is the one thing this renderer gets for free: the cascade |
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carries a pressed state that an immediate-mode renderer resolves per call site, |
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eighteen of them in audiofiles. |
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## Substitution, three ways |
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`Fill::Well` has no colour on makeover before 2.3.0, and the three renderers |
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answer that differently. That is the evidence that taking `Fill::fallback` out of |
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the description was right: |
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- `makeover-immediate` substitutes the page in Rust. |
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- `makeover-tui` refuses to substitute and draws an edge, because a terminal |
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quantises the two together. |
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- here, CSS already has the mechanism. `var(--surface-well, var(--surface-page))` |
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falls back in the browser and nothing in Rust decides anything. |
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## Status |
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Unpublished, path dep on `makeover-layout`. No consumer yet; GoingsOn goes first |
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when phase A is adopted, since it holds the deletion test. |
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`cargo run --example dump` prints the stylesheet. |
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## Licence |
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MIT. |
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