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24c5617230
* feat(dev-mode): Leptos code for a layer tree (#223) inspect.code takes language: leptos, and the Inspect panel lists it: the HTML markup inside a #[component] fn's view!, with the stylesheet after it as for React. Text is Rust string literals (line breaks as <br/>) so the macro parses it; px or rem like the other web languages. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * feat(dev-mode): Leptos components take their properties, instances are calls (#223) Leptos joins React in component code: a component or set is a #[component] fn with #[prop] defaults (variant enums with as_str, bool, String, ViewFn for instance swaps, Option<ViewFn> for slots), layers bound to booleans show through .then, variants differ by data-* CSS rules, and instances (also inside layer trees) are calls passing the values they change. Names are snake_case, Rust keywords get a trailing _. Code Connect takes leptos too (use <path>::<Name>; view! markup). Markup now takes the language instead of jsx/leptos flags; React and Leptos share the stylesheet pass. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: Justin John <babyjjbabyjj549@gmail.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> Co-authored-by: bflatastic <bombayapirat@gmail.com>
1122 lines
49 KiB
Rust
1122 lines
49 KiB
Rust
//! Code for a layer, as shown by the Inspect panel and returned by `inspect.code`: CSS for the
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//! layer itself, HTML or React for its subtree, and SwiftUI or Jetpack Compose (stacks for auto
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//! layout, absolute offsets otherwise). Components become components whose properties are
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//! parameters and instances become calls passing their values (see [`crate::component_codegen`]);
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//! variables bound to a layer become CSS custom properties. The output is a starting point, not a
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//! pixel-exact translation.
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use figcraft_color::{Color, PaintKind};
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use figcraft_doc::*;
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use serde_json::json;
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use crate::cmd::CommandSpec;
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use crate::component_codegen::{Component, Param};
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use crate::params::*;
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use crate::{bad, spec};
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pub fn specs() -> Vec<CommandSpec> {
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vec![spec!(
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"inspect.code",
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"Code for layer",
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"{id?, language?: css|html|react|leptos|swiftui|compose (default css; html, react and leptos are the whole layer tree; components take their properties as parameters, instances pass their values; a component connected to code (codeConnect.set) gives its import and snippet instead), unit?: px|rem (CSS, HTML, React and Leptos; default px), rootFontSize? (rem: pixels per rem, default 16)} → {code, language, connected}",
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false,
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|s, p| {
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let cmd = "inspect.code";
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let id = targets(s, p).first().copied().ok_or_else(|| bad(cmd, "select a layer"))?;
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let lang = match string(p, "language") {
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Some(l) => CodeLang::from_id(&l).ok_or_else(|| bad(cmd, "language: css|html|react|leptos|swiftui|compose"))?,
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None => CodeLang::Css,
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};
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let rem = match string(p, "unit").map(|u| u.to_ascii_lowercase()).as_deref() {
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None | Some("px") => None,
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Some("rem") => Some(num_or(p, "rootFontSize", 16.0)).filter(|r| r.is_finite() && *r > 0.0 && *r <= 1000.0),
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Some(_) => return Err(bad(cmd, "unit: px|rem")),
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};
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if string(p, "unit").is_some_and(|u| u.eq_ignore_ascii_case("rem")) && rem.is_none() {
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return Err(bad(cmd, "rootFontSize: a positive number of pixels (up to 1000)"));
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}
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let doc = s.doc()?;
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if !doc.contains(id) {
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return Err(bad(cmd, "no such layer"));
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}
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let connected = crate::code_connect::link(doc, id, lang).is_some();
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let code = code_for(doc, id, lang);
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let code = match rem {
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Some(root) if lang.is_web() => px_to_rem(&code, root),
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_ => code,
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};
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Ok(json!({"code": code, "language": lang.id(), "connected": connected}))
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}
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)]
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}
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/// Languages the Inspect panel offers.
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#[derive(Clone, Copy, Debug, PartialEq, Eq, Default)]
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pub enum CodeLang {
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#[default]
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Css,
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/// The whole layer tree as nested HTML elements with a stylesheet.
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Html,
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/// A React function component (TSX) with its stylesheet.
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React,
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/// A Leptos component (`view!` markup) with its stylesheet.
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Leptos,
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SwiftUi,
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Compose,
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}
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impl CodeLang {
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pub const ALL: [CodeLang; 6] = [CodeLang::Css, CodeLang::Html, CodeLang::React, CodeLang::Leptos, CodeLang::SwiftUi, CodeLang::Compose];
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pub fn id(self) -> &'static str {
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match self {
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CodeLang::Css => "css",
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CodeLang::Html => "html",
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CodeLang::React => "react",
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CodeLang::Leptos => "leptos",
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CodeLang::SwiftUi => "swiftui",
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CodeLang::Compose => "compose",
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}
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}
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pub fn label(self) -> &'static str {
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match self {
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CodeLang::Css => "CSS",
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CodeLang::Html => "HTML + CSS",
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CodeLang::React => "React",
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CodeLang::Leptos => "Leptos",
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CodeLang::SwiftUi => "SwiftUI",
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CodeLang::Compose => "Compose",
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}
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}
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/// Languages whose lengths are CSS pixels (they can be shown in rem).
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pub fn is_web(self) -> bool {
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matches!(self, CodeLang::Css | CodeLang::Html | CodeLang::React | CodeLang::Leptos)
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}
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pub fn from_id(s: &str) -> Option<CodeLang> {
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if s.eq_ignore_ascii_case("tsx") || s.eq_ignore_ascii_case("jsx") {
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return Some(CodeLang::React);
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}
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CodeLang::ALL.into_iter().find(|l| l.id().eq_ignore_ascii_case(s) || l.label().eq_ignore_ascii_case(s))
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}
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}
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/// Layers deeper than this (or past this many children) are summarised.
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const MAX_DEPTH: usize = 12;
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const MAX_CHILDREN: usize = 200;
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/// `v` without trailing zeros (2 decimals).
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pub(crate) fn num(v: f64) -> String {
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if !v.is_finite() {
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return "0".into();
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}
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let r = (v * 100.0).round() / 100.0;
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if (r - r.round()).abs() < 1e-9 { format!("{}", r.round() as i64) } else { format!("{r}") }
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}
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/// `code` with every pixel length (`12px`) in rem of `root` pixels (`0.75rem`); names that end
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/// in "px" are left alone.
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pub fn px_to_rem(code: &str, root: f64) -> String {
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let ident = |c: char| c.is_alphanumeric() || c == '_';
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let mut out = String::with_capacity(code.len());
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let mut rest = code;
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while let Some(i) = rest.find("px") {
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let (head, tail) = (rest.get(..i).unwrap_or(""), rest.get(i + 2..).unwrap_or(""));
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// The number right before "px".
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let start = head.char_indices().rev().take_while(|(_, c)| c.is_ascii_digit() || *c == '.' || *c == '-').last().map_or(head.len(), |(j, _)| j);
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let (before, number) = (head.get(..start).unwrap_or(""), head.get(start..).unwrap_or(""));
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let free = !before.chars().next_back().is_some_and(ident) && !tail.chars().next().is_some_and(|c| ident(c) || c == '-');
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match number.parse::<f64>() {
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Ok(v) if free && v.is_finite() => {
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out.push_str(before);
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out.push_str(&format!("{}rem", num(v / root)));
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}
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_ => {
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out.push_str(head);
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out.push_str("px");
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}
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}
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rest = tail;
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}
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out.push_str(rest);
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out
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}
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pub fn code_for(doc: &Document, id: NodeId, lang: CodeLang) -> String {
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match lang {
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CodeLang::Css => css(doc, id),
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CodeLang::Html => html(doc, id),
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CodeLang::React | CodeLang::Leptos | CodeLang::SwiftUi | CodeLang::Compose => crate::component_codegen::code(doc, id, lang),
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}
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}
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/// What a tree walk generates for: the document, the layer the code is for (instances under it
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/// become calls), and the component whose properties are parameters.
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pub(crate) struct Ctx<'a> {
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pub doc: &'a Document,
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pub root: NodeId,
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pub comp: Option<&'a Component>,
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/// Indentation the walk starts at (the depth cap counts from it).
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pub base: usize,
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}
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impl<'a> Ctx<'a> {
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pub fn new(doc: &'a Document, root: NodeId) -> Self {
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Ctx { doc, root, comp: None, base: 0 }
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}
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/// The component parameter controlling `field` ("visible", "characters", "mainComponent",
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/// "slot") of `n`.
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pub fn param(&self, n: &Node, field: &str) -> Option<&'a Param> {
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let name = n.prop_refs.get(field)?;
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self.comp?.params.iter().find(|p| &p.prop == name)
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}
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/// Visible children in paint order (bottom first), capped; in component code, hidden layers a
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/// boolean parameter shows are included.
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pub fn kids(&self, n: &Node) -> Vec<NodeId> {
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n.children
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.iter()
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.copied()
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.filter(|c| self.doc.node(*c).is_some_and(|k| k.visible || self.param(k, "visible").is_some()))
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.take(MAX_CHILDREN)
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.collect()
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}
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fn too_deep(&self, depth: usize) -> bool {
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depth > self.base + MAX_DEPTH
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}
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/// A call for an instance below the root (`None` for other layers, or a missing main).
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fn call(&self, n: &Node, lang: CodeLang, depth: usize) -> Option<String> {
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if n.id == self.root || !matches!(n.kind, NodeKind::Instance { .. }) {
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return None;
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}
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crate::component_codegen::usage(self.doc, n.id, lang, depth)
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}
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}
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fn first_fill(n: &Node) -> Option<Color> {
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n.fills.iter().filter(|p| p.visible).find_map(|p| match &p.kind {
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PaintKind::Solid { color } => Some(color.with_alpha(color.a * p.opacity)),
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PaintKind::Gradient(g) => g.sorted_stops().first().map(|s| s.color),
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PaintKind::Image(_) | PaintKind::Pattern(_) => None,
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})
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}
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fn stroke_color(n: &Node) -> Option<Color> {
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if !n.has_visible_stroke() {
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return None;
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}
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n.strokes.iter().filter(|p| p.visible).find_map(|p| p.solid_color().map(|c| c.with_alpha(c.a * p.opacity)))
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}
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fn drop_shadow(n: &Node) -> Option<&Shadow> {
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n.effects.iter().filter(|e| e.visible).find_map(|e| match &e.kind {
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EffectKind::DropShadow(s) => Some(s),
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_ => None,
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})
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}
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fn radius(n: &Node) -> f64 {
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n.corners.uniform().unwrap_or_else(|| n.corners.radii.iter().copied().fold(0.0, f64::max))
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}
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/// Text content as a string literal (escaped for Swift; Kotlin also escapes `$`).
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pub(crate) fn literal(s: &str, kotlin: bool) -> String {
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let mut out = String::from("\"");
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for c in s.chars().take(10_000) {
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match c {
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'"' => out.push_str("\\\""),
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'\\' => out.push_str("\\\\"),
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'\n' | '\u{2028}' => out.push_str("\\n"),
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'\r' => {}
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'\t' => out.push_str("\\t"),
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'$' if kotlin => out.push_str("\\$"),
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c if c.is_control() => {}
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c => out.push(c),
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}
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}
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out.push('"');
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out
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}
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pub(crate) fn indent(depth: usize) -> String {
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" ".repeat(depth)
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}
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// ------------------------------------------------------------------ CSS
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/// The CSS custom properties generated code uses: name → fallback value, in first-use order.
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#[derive(Default)]
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pub(crate) struct Tokens(pub Vec<(String, String)>);
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impl Tokens {
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/// `var(--name, value)`, remembering the variable.
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fn var(&mut self, variable: &Variable, value: String) -> String {
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let name = css_var_of(variable);
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let out = format!("var({name}, {value})");
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if !self.0.iter().any(|(n, _)| *n == name) {
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self.0.push((name, value));
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}
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out
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}
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/// A `:root` rule declaring the variables (empty without any).
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pub fn root_rule(&self) -> String {
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if self.0.is_empty() {
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return String::new();
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}
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let decls: String = self.0.iter().map(|(n, v)| format!(" {n}: {v};\n")).collect();
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format!(":root {{\n{decls}}}\n")
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}
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}
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/// A variable's CSS custom property name: "Colors/Brand 500" → `--colors-brand-500`.
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pub fn css_var_name(variable: &str) -> String {
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let mut out = String::from("--");
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for c in variable.chars().flat_map(char::to_lowercase).take(80) {
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if c.is_alphanumeric() || c == '_' {
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out.push(c);
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} else if !out.ends_with('-') {
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out.push('-');
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}
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}
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let trimmed = out.trim_end_matches('-');
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if trimmed.len() <= 2 { "--variable".into() } else { trimmed.to_string() }
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}
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/// A variable's CSS custom property: its Web code syntax (`var(--x)` or `--x`) when it has one,
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/// else made from its name.
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pub fn css_var_of(v: &Variable) -> String {
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let Some(web) = v.code_syntax.get("WEB").map(|w| w.trim()) else { return css_var_name(&v.name) };
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let inner = web.strip_prefix("var(").map_or(web, |r| r.split([',', ')']).next().unwrap_or("").trim());
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let valid = inner.len() > 2 && inner.starts_with("--") && inner.chars().all(|c| c.is_alphanumeric() || c == '-' || c == '_');
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if valid { inner.chars().take(80).collect() } else { css_var_name(inner) }
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}
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/// `value`, or a reference to the variable bound to the first of `fields` that has one.
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fn tok(doc: &Document, n: &Node, fields: &[&str], value: String, t: &mut Tokens) -> String {
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match fields.iter().find_map(|f| crate::devinspect::bound_variable(doc, n, f)) {
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Some(v) => t.var(v, value),
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None => value,
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}
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}
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fn css(doc: &Document, id: NodeId) -> String {
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let Some(n) = doc.node(id) else { return String::new() };
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let mut t = Tokens::default();
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let decls = css_decls(doc, n, &mut t, (false, false));
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format!("/* {} */\n{decls}", n.name.replace("*/", "* /"))
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}
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/// The CSS declarations for `n`'s own look and size, one per line; `hug` leaves out the width
|
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/// and/or height (they follow the content). Bound variables become `var(--name, value)`.
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pub(crate) fn css_decls(doc: &Document, n: &Node, t: &mut Tokens, hug: (bool, bool)) -> String {
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let px = |v: f64| format!("{}px", num(v));
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let mut out = String::new();
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let mut put = |key: &str, value: String| out.push_str(&format!("{key}: {value};\n"));
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if !hug.0 {
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put("width", tok(doc, n, &["width"], px(n.width), t));
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}
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if !hug.1 {
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put("height", tok(doc, n, &["height"], px(n.height), t));
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}
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if let Some(l) = &n.layout {
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put("display", "flex".into());
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put("flex-direction", if l.mode == LayoutMode::Vertical { "column" } else { "row" }.into());
|
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if l.wrap {
|
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put("flex-wrap", "wrap".into());
|
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}
|
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put("gap", tok(doc, n, &["gap"], px(l.gap), t));
|
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let [pt, pr, pb, pl] = l.padding;
|
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let sides = [
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tok(doc, n, &["paddingTop", "paddingVertical", "padding"], px(pt), t),
|
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tok(doc, n, &["paddingRight", "paddingHorizontal", "padding"], px(pr), t),
|
||
tok(doc, n, &["paddingBottom", "paddingVertical", "padding"], px(pb), t),
|
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tok(doc, n, &["paddingLeft", "paddingHorizontal", "padding"], px(pl), t),
|
||
];
|
||
put("padding", sides.join(" "));
|
||
let justify = match l.main_align {
|
||
MainAlign::Min => "flex-start",
|
||
MainAlign::Center => "center",
|
||
MainAlign::Max => "flex-end",
|
||
MainAlign::SpaceBetween => "space-between",
|
||
MainAlign::SpaceAround => "space-around",
|
||
MainAlign::SpaceEvenly => "space-evenly",
|
||
};
|
||
put("justify-content", justify.into());
|
||
let align = match l.cross_align {
|
||
CrossAlign::Min => "flex-start",
|
||
CrossAlign::Center => "center",
|
||
CrossAlign::Max => "flex-end",
|
||
CrossAlign::Baseline => "baseline",
|
||
};
|
||
put("align-items", align.into());
|
||
if l.wrap {
|
||
// The lines: spread, or packed where the items align (baseline: at the start).
|
||
let spread = l.content_align == ContentAlign::SpaceBetween;
|
||
put(
|
||
"align-content",
|
||
if spread {
|
||
"space-between"
|
||
} else if align == "baseline" {
|
||
"flex-start"
|
||
} else {
|
||
align
|
||
}
|
||
.into(),
|
||
);
|
||
}
|
||
}
|
||
if matches!(n.kind, NodeKind::Ellipse { .. }) {
|
||
put("border-radius", "50%".into());
|
||
} else if let Some(r) = n.corners.uniform().filter(|r| *r > 0.0) {
|
||
put("border-radius", tok(doc, n, &["cornerRadius"], px(r), t));
|
||
} else if n.corners.radii.iter().any(|r| *r > 0.0) {
|
||
let fields = ["topLeftRadius", "topRightRadius", "bottomRightRadius", "bottomLeftRadius"];
|
||
let corners: Vec<String> = n.corners.radii.iter().zip(fields).map(|(r, f)| tok(doc, n, &[f, "cornerRadius"], px(*r), t)).collect();
|
||
put("border-radius", corners.join(" "));
|
||
}
|
||
if n.opacity < 1.0 {
|
||
put("opacity", tok(doc, n, &["opacity"], num(f64::from(n.opacity)), t));
|
||
}
|
||
if !matches!(n.blend, figcraft_color::BlendMode::Normal | figcraft_color::BlendMode::PassThrough) {
|
||
put("mix-blend-mode", n.blend.css().into());
|
||
}
|
||
// Rotation turns counter-clockwise about the top-left corner (the position given); CSS
|
||
// rotate turns clockwise.
|
||
let rot = figcraft_geom::rotation_degrees(n.transform);
|
||
if rot.abs() > 0.01 && rot.is_finite() {
|
||
put("transform", format!("rotate({}deg)", num(-rot)));
|
||
put("transform-origin", "top left".into());
|
||
}
|
||
for (i, p) in n.fills.iter().enumerate().filter(|(_, p)| p.visible) {
|
||
match &p.kind {
|
||
PaintKind::Solid { color } => {
|
||
let key = if matches!(n.kind, NodeKind::Text(_)) { "color" } else { "background" };
|
||
let c = color.with_alpha(color.a * p.opacity).to_css();
|
||
// A variable binds the first paint's colour.
|
||
put(key, if i == 0 { tok(doc, n, &["fill"], c, t) } else { c });
|
||
}
|
||
PaintKind::Gradient(g) => put("background", css_gradient(g, n.width, n.height)),
|
||
PaintKind::Image(_) => put("background", "url(image.png) center / cover".into()),
|
||
PaintKind::Pattern(_) => put("background", "url(pattern.png) repeat".into()),
|
||
}
|
||
}
|
||
if let Some(c) = stroke_color(n) {
|
||
let weight = tok(doc, n, &["strokeWeight"], px(n.stroke.weight), t);
|
||
put("border", format!("{weight} solid {}", tok(doc, n, &["stroke"], c.to_css(), t)));
|
||
}
|
||
let shadows: Vec<String> = n
|
||
.effects
|
||
.iter()
|
||
.filter(|e| e.visible)
|
||
.filter_map(|e| match &e.kind {
|
||
EffectKind::DropShadow(s) => {
|
||
Some(format!("{}px {}px {}px {}px {}", num(s.offset.0), num(s.offset.1), num(s.radius), num(s.spread), s.color.to_css()))
|
||
}
|
||
EffectKind::InnerShadow(s) => {
|
||
Some(format!("inset {}px {}px {}px {}px {}", num(s.offset.0), num(s.offset.1), num(s.radius), num(s.spread), s.color.to_css()))
|
||
}
|
||
_ => None,
|
||
})
|
||
.collect();
|
||
if !shadows.is_empty() {
|
||
put("box-shadow", shadows.join(", "));
|
||
}
|
||
for e in n.effects.iter().filter(|e| e.visible) {
|
||
match e.kind {
|
||
// CSS blurs are uniform: a progressive blur has no CSS equivalent and is left out.
|
||
EffectKind::LayerBlur(ref b) if !b.is_progressive() => put("filter", format!("blur({}px)", num(b.radius / 2.0))),
|
||
EffectKind::BackgroundBlur(ref b) if !b.is_progressive() => put("backdrop-filter", format!("blur({}px)", num(b.radius / 2.0))),
|
||
// CSS has no refraction: the frost is the nearest.
|
||
EffectKind::Glass(ref g) => put("backdrop-filter", format!("blur({}px)", num(g.sanitized().frost / 2.0))),
|
||
_ => {}
|
||
}
|
||
}
|
||
if let NodeKind::Text(tx) = &n.kind {
|
||
let s = &tx.style;
|
||
put("font-family", tok(doc, n, &["fontFamily"], format!("\"{}\"", s.font_family.replace('"', "'")), t));
|
||
put("font-size", tok(doc, n, &["fontSize"], px(s.font_size), t));
|
||
put("font-weight", s.weight().to_string());
|
||
if s.italic() {
|
||
put("font-style", "italic".into());
|
||
}
|
||
match s.line_height {
|
||
LineHeight::Pixels(v) => put("line-height", tok(doc, n, &["lineHeight"], px(v), t)),
|
||
LineHeight::Percent(p) => put("line-height", format!("{}%", num(p))),
|
||
LineHeight::Auto => {}
|
||
}
|
||
match s.letter_spacing {
|
||
LetterSpacing::Pixels(v) if v != 0.0 => put("letter-spacing", tok(doc, n, &["letterSpacing"], px(v), t)),
|
||
LetterSpacing::Percent(p) if p != 0.0 => put("letter-spacing", format!("{}em", num(p / 100.0))),
|
||
_ => {}
|
||
}
|
||
match tx.align_h {
|
||
TextAlignH::Left => {}
|
||
TextAlignH::Center => put("text-align", "center".into()),
|
||
TextAlignH::Right => put("text-align", "right".into()),
|
||
TextAlignH::Justified => put("text-align", "justify".into()),
|
||
}
|
||
match s.case {
|
||
TextCase::Original => {}
|
||
TextCase::Upper => put("text-transform", "uppercase".into()),
|
||
TextCase::Lower => put("text-transform", "lowercase".into()),
|
||
TextCase::Title => put("text-transform", "capitalize".into()),
|
||
TextCase::SmallCaps => put("font-variant", "small-caps".into()),
|
||
}
|
||
match s.decoration {
|
||
TextDecoration::None => {}
|
||
TextDecoration::Underline => put("text-decoration", "underline".into()),
|
||
TextDecoration::Strikethrough => put("text-decoration", "line-through".into()),
|
||
}
|
||
if s.decoration != TextDecoration::None {
|
||
let l = s.look();
|
||
let len = |m: LineHeight| match m {
|
||
LineHeight::Auto => None,
|
||
LineHeight::Pixels(v) => Some(px(v)),
|
||
LineHeight::Percent(p) => Some(format!("{}%", num(p))),
|
||
};
|
||
match l.style {
|
||
figcraft_doc::DecorationStyle::Solid => {}
|
||
figcraft_doc::DecorationStyle::Dotted => put("text-decoration-style", "dotted".into()),
|
||
figcraft_doc::DecorationStyle::Wavy => put("text-decoration-style", "wavy".into()),
|
||
}
|
||
if let Some(v) = len(l.thickness) {
|
||
put("text-decoration-thickness", v);
|
||
}
|
||
if let Some(c) = l.color {
|
||
put("text-decoration-color", c.to_css());
|
||
}
|
||
if s.decoration == TextDecoration::Underline {
|
||
if let Some(v) = len(l.offset) {
|
||
put("text-underline-offset", v);
|
||
}
|
||
// Browsers skip ink by default; the canvas only when asked.
|
||
if !l.skip_ink {
|
||
put("text-decoration-skip-ink", "none".into());
|
||
}
|
||
}
|
||
}
|
||
if tx.leading_trim == figcraft_doc::LeadingTrim::CapHeight {
|
||
put("text-box", "trim-both cap alphabetic".into());
|
||
}
|
||
}
|
||
out
|
||
}
|
||
|
||
/// A gradient fill on a `w`×`h` box as a CSS background: linear along its handles' direction
|
||
/// (CSS angles: 0deg up, 90deg right), radial with its handles' radii, angular as a conic
|
||
/// gradient from its start direction.
|
||
fn css_gradient(g: &figcraft_color::Gradient, w: f64, h: f64) -> String {
|
||
let stops = g.sorted_stops().iter().map(|s| format!("{} {}%", s.color.to_css(), (s.position * 100.0).round())).collect::<Vec<_>>().join(", ");
|
||
let (dx, dy) = ((g.to.0 - g.from.0) * w, (g.to.1 - g.from.1) * h);
|
||
let angle = if dx == 0.0 && dy == 0.0 { 180.0 } else { dx.atan2(-dy).to_degrees().rem_euclid(360.0) };
|
||
let pct = |v: f64| format!("{}%", num(v * 100.0));
|
||
let at = format!("at {} {}", pct(g.from.0), pct(g.from.1));
|
||
match g.kind {
|
||
figcraft_color::GradientKind::Linear => format!("linear-gradient({}deg, {stops})", num(angle)),
|
||
figcraft_color::GradientKind::Radial | figcraft_color::GradientKind::Diamond => {
|
||
let (rx, ry) = (((g.width.0 - g.from.0) * w).hypot((g.width.1 - g.from.1) * h), dx.hypot(dy));
|
||
let rel = |r: f64, side: f64| if side > 0.0 { pct(r / side) } else { "50%".into() };
|
||
format!("radial-gradient({} {} {at}, {stops})", rel(rx, w), rel(ry, h))
|
||
}
|
||
figcraft_color::GradientKind::Angular => format!("conic-gradient(from {}deg {at}, {stops})", num(angle)),
|
||
}
|
||
}
|
||
|
||
// ------------------------------------------------------------------ HTML and React markup
|
||
|
||
/// A CSS class name from a layer name ("Card / Title" → "card-title"), unique in `used`.
|
||
pub(crate) fn class_name(name: &str, used: &mut Vec<String>) -> String {
|
||
let mut base = String::new();
|
||
for c in name.chars().flat_map(char::to_lowercase) {
|
||
if c.is_ascii_alphanumeric() {
|
||
base.push(c);
|
||
} else if !base.ends_with('-') && !base.is_empty() {
|
||
base.push('-');
|
||
}
|
||
}
|
||
let base = base.trim_end_matches('-').chars().take(40).collect::<String>();
|
||
let base = if base.is_empty() || base.starts_with(|c: char| c.is_ascii_digit()) { format!("layer-{base}") } else { base };
|
||
let name = (1..).map(|k| if k == 1 { base.clone() } else { format!("{base}-{k}") }).find(|n| !used.contains(n)).unwrap_or(base);
|
||
used.push(name.clone());
|
||
name
|
||
}
|
||
|
||
fn html_escape(s: &str) -> String {
|
||
s.replace('&', "&").replace('<', "<").replace('>', ">").replace('\n', "<br>")
|
||
}
|
||
|
||
/// Text as JSX children: HTML escapes, braces as expressions, line breaks as `<br />`.
|
||
fn jsx_text(s: &str) -> String {
|
||
let mut out = String::new();
|
||
for c in s.chars().take(10_000) {
|
||
match c {
|
||
'&' => out.push_str("&"),
|
||
'<' => out.push_str("<"),
|
||
'>' => out.push_str(">"),
|
||
'{' => out.push_str("{\"{\"}"),
|
||
'}' => out.push_str("{\"}\"}"),
|
||
'\n' => out.push_str("<br />"),
|
||
'\r' => {}
|
||
c => out.push(c),
|
||
}
|
||
}
|
||
out
|
||
}
|
||
|
||
/// The whole tree under `id` as nested HTML with a stylesheet: auto layout frames become
|
||
/// flexboxes, other children are placed absolutely in their parent, text becomes paragraphs.
|
||
fn html(doc: &Document, id: NodeId) -> String {
|
||
let ctx = Ctx::new(doc, id);
|
||
let mut out = Markup::new(&ctx, CodeLang::Html);
|
||
out.node(id, None, 0, "");
|
||
format!("{}\n<style>\n{}{}</style>\n", out.markup, out.tokens.root_rule(), out.styles)
|
||
}
|
||
|
||
/// Markup being built for a layer tree: HTML (`class`), React JSX (`className`) or Leptos `view!`
|
||
/// markup (text as Rust string literals); the last two with component parameters and instances
|
||
/// as calls. With its stylesheet.
|
||
pub(crate) struct Markup<'c, 'a> {
|
||
ctx: &'c Ctx<'a>,
|
||
/// Html, React or Leptos.
|
||
lang: CodeLang,
|
||
used: Vec<String>,
|
||
pub markup: String,
|
||
pub styles: String,
|
||
pub tokens: Tokens,
|
||
/// The root's class (default: from its name) and extra JSX attributes.
|
||
pub root_class: Option<String>,
|
||
pub root_attrs: String,
|
||
/// Each layer's path in the tree (names with sibling counts), class and declarations, so
|
||
/// variants can be compared layer by layer.
|
||
pub rules: Vec<(String, String, String)>,
|
||
}
|
||
|
||
impl<'c, 'a> Markup<'c, 'a> {
|
||
pub fn new(ctx: &'c Ctx<'a>, lang: CodeLang) -> Self {
|
||
Markup {
|
||
ctx,
|
||
lang,
|
||
used: Vec::new(),
|
||
markup: String::new(),
|
||
styles: String::new(),
|
||
tokens: Tokens::default(),
|
||
root_class: None,
|
||
root_attrs: String::new(),
|
||
rules: Vec::new(),
|
||
}
|
||
}
|
||
|
||
/// JSX indents by two spaces, HTML and Leptos by four.
|
||
fn pad(&self, depth: usize) -> String {
|
||
if self.lang == CodeLang::React { " ".repeat(depth) } else { indent(depth) }
|
||
}
|
||
|
||
/// Component code (React or Leptos): parameters and instances as calls.
|
||
fn code(&self) -> bool {
|
||
self.lang != CodeLang::Html
|
||
}
|
||
|
||
/// A parameter's name in the generated code.
|
||
fn ident(&self, p: &Param) -> String {
|
||
if self.lang == CodeLang::Leptos { crate::component_codegen::rust_ident(&p.ident) } else { p.ident.clone() }
|
||
}
|
||
|
||
/// A layer, shown only while its boolean parameter is on (component code).
|
||
pub fn node(&mut self, id: NodeId, parent: Option<&Node>, depth: usize, path: &str) {
|
||
let Some(n) = self.ctx.doc.node(id) else { return };
|
||
if self.code()
|
||
&& id != self.ctx.root
|
||
&& let Some(p) = self.ctx.param(n, "visible")
|
||
{
|
||
let (pad, p) = (self.pad(depth), self.ident(p));
|
||
let (open, close) =
|
||
if self.lang == CodeLang::Leptos { (format!("{{{p}.then(|| view! {{"), "})}") } else { (format!("{{{p} && ("), ")}") };
|
||
self.markup.push_str(&format!("{pad}{open}\n"));
|
||
self.element(n, parent, depth + 1, path);
|
||
self.markup.push_str(&format!("{pad}{close}\n"));
|
||
return;
|
||
}
|
||
self.element(n, parent, depth, path);
|
||
}
|
||
|
||
fn rule(&mut self, path: &str, class: &str, decls: String) {
|
||
self.styles.push_str(&format!(".{class} {{\n"));
|
||
for line in decls.lines() {
|
||
self.styles.push_str(&format!(" {line}\n"));
|
||
}
|
||
self.styles.push_str("}\n");
|
||
self.rules.push((path.to_string(), class.to_string(), decls));
|
||
}
|
||
|
||
fn element(&mut self, n: &Node, parent: Option<&Node>, depth: usize, path: &str) {
|
||
let doc = self.ctx.doc;
|
||
let root = n.id == self.ctx.root;
|
||
let class = match self.root_class.take().filter(|_| root) {
|
||
Some(c) => {
|
||
self.used.push(c.clone());
|
||
c
|
||
}
|
||
None => class_name(&n.name, &mut self.used),
|
||
};
|
||
let pad = self.pad(depth);
|
||
let attr = if self.lang == CodeLang::React { "className" } else { "class" };
|
||
// How it sits in its parent: in the flex flow, or placed at its position.
|
||
let mut decls = String::new();
|
||
let in_flow = parent.is_some_and(|p| p.layout.is_some()) && !n.child_layout.absolute;
|
||
if root {
|
||
decls.push_str("position: relative;\n");
|
||
} else if in_flow {
|
||
let vertical = parent.and_then(|p| p.layout.as_ref()).is_some_and(|l| l.mode == LayoutMode::Vertical);
|
||
let (main, cross) =
|
||
if vertical { (n.child_layout.sizing_v, n.child_layout.sizing_h) } else { (n.child_layout.sizing_h, n.child_layout.sizing_v) };
|
||
if main == Sizing::Fill {
|
||
decls.push_str("flex: 1 1 0;\n");
|
||
}
|
||
if cross == Sizing::Fill {
|
||
decls.push_str("align-self: stretch;\n");
|
||
}
|
||
} else {
|
||
let c = n.transform.as_coeffs();
|
||
decls.push_str(&format!("position: absolute;\nleft: {}px;\ntop: {}px;\n", num(c[4]), num(c[5])));
|
||
let rot = figcraft_geom::rotation_degrees(n.transform);
|
||
if rot.abs() > 0.01 {
|
||
decls.push_str(&format!("transform: rotate({}deg);\ntransform-origin: 0 0;\n", num(-rot)));
|
||
}
|
||
}
|
||
// Nested instances are calls (component code), in a wrapper that places them when needed.
|
||
if self.code() && !root && matches!(n.kind, NodeKind::Instance { .. }) {
|
||
let at = depth + usize::from(!decls.is_empty());
|
||
let run = if self.lang == CodeLang::Leptos { ".run()" } else { "" };
|
||
let inner = match self.ctx.param(n, "mainComponent") {
|
||
Some(p) => Some(format!("{}{{{}{run}}}\n", self.pad(at), self.ident(p))),
|
||
None => self.ctx.call(n, self.lang, at),
|
||
};
|
||
if let Some(inner) = inner {
|
||
if decls.is_empty() {
|
||
self.markup.push_str(&inner);
|
||
} else {
|
||
self.markup.push_str(&format!("{pad}<div {attr}=\"{class}\">\n{inner}{pad}</div>\n"));
|
||
self.rule(path, &class, decls);
|
||
}
|
||
return;
|
||
}
|
||
}
|
||
let hugs = n.layout.is_some() || matches!(n.kind, NodeKind::Text(_));
|
||
let hug = (hugs && n.child_layout.sizing_h == Sizing::Hug, hugs && n.child_layout.sizing_v == Sizing::Hug);
|
||
let mut own = css_decls(doc, n, &mut self.tokens, hug);
|
||
if n.layout.is_none() && !n.children.is_empty() && !root && in_flow {
|
||
own.push_str("position: relative;\n");
|
||
}
|
||
decls.push_str(&own);
|
||
self.rule(path, &class, decls);
|
||
let attrs = if root { self.root_attrs.clone() } else { String::new() };
|
||
let open = |tag: &str| format!("{pad}<{tag} {attr}=\"{class}\"{attrs}>");
|
||
match &n.kind {
|
||
NodeKind::Text(t) => {
|
||
let body = match (self.ctx.param(n, "characters").filter(|_| self.code()), self.lang) {
|
||
(Some(p), CodeLang::Leptos) => format!("{{{}.clone()}}", self.ident(p)),
|
||
(Some(p), _) => format!("{{{}}}", p.ident),
|
||
(None, CodeLang::React) => jsx_text(&t.characters),
|
||
// `view!` takes text as string literals and void elements self-closed.
|
||
(None, CodeLang::Leptos) => {
|
||
t.characters.chars().take(10_000).collect::<String>().lines().map(|l| format!("{l:?}")).collect::<Vec<_>>().join("<br/>")
|
||
}
|
||
(None, _) => html_escape(&t.characters),
|
||
};
|
||
self.markup.push_str(&format!("{}{body}</p>\n", open("p")));
|
||
}
|
||
_ => {
|
||
let kids = self.ctx.kids(n);
|
||
let slot = self.ctx.param(n, "slot").filter(|_| self.code());
|
||
let leptos = self.lang == CodeLang::Leptos;
|
||
let open = open("div");
|
||
if let Some(p) = slot.filter(|_| kids.is_empty()) {
|
||
let content = if leptos { format!("{}.as_ref().map(|c| c.run())", self.ident(p)) } else { p.ident.clone() };
|
||
self.markup.push_str(&format!("{open}{{{content}}}</div>\n"));
|
||
} else if kids.is_empty() || self.ctx.too_deep(depth) {
|
||
self.markup.push_str(&format!("{open}</div>\n"));
|
||
} else {
|
||
self.markup.push_str(&format!("{open}\n"));
|
||
// A slot shows the instance's content, or else the main's.
|
||
let (p1, p2) = (self.pad(depth + 1), self.pad(depth + 2));
|
||
let inner = match slot {
|
||
Some(p) if leptos => {
|
||
self.markup.push_str(&format!("{p1}{{match &{} {{ Some(c) => c.run(), None => view! {{\n", self.ident(p)));
|
||
depth + 2
|
||
}
|
||
Some(p) => {
|
||
self.markup.push_str(&format!("{p1}{{{} ?? (\n{p2}<>\n", p.ident));
|
||
depth + 3
|
||
}
|
||
None => depth + 1,
|
||
};
|
||
let mut seen: Vec<&str> = Vec::new();
|
||
// Bottom layer first: later elements paint on top, like the layer order.
|
||
for k in kids {
|
||
let Some(kn) = doc.node(k) else { continue };
|
||
let count = seen.iter().filter(|s| **s == kn.name).count();
|
||
seen.push(&kn.name);
|
||
self.node(k, Some(n), inner, &format!("{path}/{}#{count}", kn.name));
|
||
}
|
||
match slot {
|
||
Some(_) if leptos => self.markup.push_str(&format!("{p1}}}.into_any() }}}}\n")),
|
||
Some(_) => self.markup.push_str(&format!("{p2}</>\n{p1})}}\n")),
|
||
None => {}
|
||
}
|
||
self.markup.push_str(&format!("{pad}</div>\n"));
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// ------------------------------------------------------------------ SwiftUI
|
||
|
||
fn swift_color(c: Color) -> String {
|
||
format!("Color(red: {}, green: {}, blue: {}, opacity: {})", num(f64::from(c.r)), num(f64::from(c.g)), num(f64::from(c.b)), num(f64::from(c.a)))
|
||
}
|
||
|
||
fn swift_weight(w: u16) -> &'static str {
|
||
match w {
|
||
0..=150 => ".thin",
|
||
151..=250 => ".ultraLight",
|
||
251..=350 => ".light",
|
||
351..=450 => ".regular",
|
||
451..=550 => ".medium",
|
||
551..=650 => ".semibold",
|
||
651..=750 => ".bold",
|
||
751..=850 => ".heavy",
|
||
_ => ".black",
|
||
}
|
||
}
|
||
|
||
/// SwiftUI for a layer and its subtree at `depth`; `extra` modifiers go last (a free child's
|
||
/// offset). A layer a boolean parameter shows sits in an `if`.
|
||
pub(crate) fn swift(ctx: &Ctx, id: NodeId, depth: usize, out: &mut String, extra: &[String]) {
|
||
let Some(n) = ctx.doc.node(id) else { return };
|
||
if id != ctx.root
|
||
&& let Some(p) = ctx.param(n, "visible")
|
||
{
|
||
let pad = indent(depth);
|
||
out.push_str(&format!("{pad}if {} {{\n", p.ident));
|
||
swift_layer(ctx, n, depth + 1, out, extra);
|
||
out.push_str(&format!("{pad}}}\n"));
|
||
return;
|
||
}
|
||
swift_layer(ctx, n, depth, out, extra);
|
||
}
|
||
|
||
fn swift_layer(ctx: &Ctx, n: &Node, depth: usize, out: &mut String, extra: &[String]) {
|
||
let doc = ctx.doc;
|
||
let pad = indent(depth);
|
||
if ctx.too_deep(depth) {
|
||
out.push_str(&format!("{pad}// {} …\n", n.name));
|
||
return;
|
||
}
|
||
// Nested instances are calls; an instance swap parameter is a view.
|
||
let call = match ctx.param(n, "mainComponent").filter(|_| n.id != ctx.root) {
|
||
Some(p) => Some(format!("{pad}{}\n", p.ident)),
|
||
None => ctx.call(n, CodeLang::SwiftUi, depth),
|
||
};
|
||
if let Some(call) = call {
|
||
out.push_str(&call);
|
||
for m in extra {
|
||
out.push_str(&format!("{pad} {m}\n"));
|
||
}
|
||
return;
|
||
}
|
||
let mut mods: Vec<String> = Vec::new();
|
||
match &n.kind {
|
||
NodeKind::Text(t) => {
|
||
let text = ctx.param(n, "characters").map_or_else(|| literal(&t.characters, false), |p| p.ident.clone());
|
||
out.push_str(&format!("{pad}Text({text})\n"));
|
||
mods.push(format!(
|
||
".font(.custom({}, size: {}).weight({}))",
|
||
literal(&t.style.font_family, false),
|
||
num(t.style.font_size),
|
||
swift_weight(t.style.weight())
|
||
));
|
||
if let Some(c) = first_fill(n) {
|
||
mods.push(format!(".foregroundColor({})", swift_color(c)));
|
||
}
|
||
}
|
||
NodeKind::Ellipse { .. } => {
|
||
out.push_str(&format!("{pad}Ellipse()\n"));
|
||
if let Some(c) = first_fill(n) {
|
||
mods.push(format!(".fill({})", swift_color(c)));
|
||
}
|
||
mods.push(format!(".frame(width: {}, height: {})", num(n.width), num(n.height)));
|
||
}
|
||
NodeKind::Rectangle => {
|
||
out.push_str(&format!("{pad}RoundedRectangle(cornerRadius: {})\n", num(radius(n))));
|
||
if let Some(c) = first_fill(n) {
|
||
mods.push(format!(".fill({})", swift_color(c)));
|
||
}
|
||
mods.push(format!(".frame(width: {}, height: {})", num(n.width), num(n.height)));
|
||
}
|
||
k if k.is_frame_like() || matches!(k, NodeKind::Group) => {
|
||
let children = ctx.kids(n);
|
||
let open = match n.layout.as_ref().map(|l| (l.mode, l)) {
|
||
Some((LayoutMode::Vertical, l)) => format!("VStack(alignment: .leading, spacing: {}) {{", num(l.gap)),
|
||
Some((_, l)) => format!("HStack(alignment: .center, spacing: {}) {{", num(l.gap)),
|
||
None => "ZStack(alignment: .topLeading) {".to_string(),
|
||
};
|
||
out.push_str(&format!("{pad}{open}\n"));
|
||
// A slot shows the instance's content, or else the main's.
|
||
let slot = ctx.param(n, "slot");
|
||
let inner = match slot {
|
||
Some(p) => {
|
||
out.push_str(&format!("{pad} if let {0} {{\n{pad} {0}\n{pad} }} else {{\n", p.ident));
|
||
depth + 2
|
||
}
|
||
None => depth + 1,
|
||
};
|
||
for c in &children {
|
||
// Free children sit at their offset inside a ZStack.
|
||
let offset: Vec<String> = match doc.node(*c).filter(|_| n.layout.is_none()) {
|
||
Some(cn) => {
|
||
let [_, _, _, _, x, y] = cn.transform.as_coeffs();
|
||
vec![format!(".offset(x: {}, y: {})", num(x), num(y))]
|
||
}
|
||
None => Vec::new(),
|
||
};
|
||
swift(ctx, *c, inner, out, &offset);
|
||
}
|
||
if slot.is_some() {
|
||
out.push_str(&format!("{pad} }}\n"));
|
||
}
|
||
out.push_str(&format!("{pad}}}\n"));
|
||
if let Some(l) = &n.layout {
|
||
let [t, r, b, lft] = l.padding;
|
||
if [t, r, b, lft].iter().any(|v| *v > 0.0) {
|
||
mods.push(format!(".padding(EdgeInsets(top: {}, leading: {}, bottom: {}, trailing: {}))", num(t), num(lft), num(b), num(r)));
|
||
}
|
||
}
|
||
mods.push(format!(".frame(width: {}, height: {}, alignment: .topLeading)", num(n.width), num(n.height)));
|
||
if let Some(c) = first_fill(n) {
|
||
mods.push(format!(".background({})", swift_color(c)));
|
||
}
|
||
if radius(n) > 0.0 {
|
||
mods.push(format!(".clipShape(RoundedRectangle(cornerRadius: {}))", num(radius(n))));
|
||
}
|
||
}
|
||
_ => {
|
||
out.push_str(&format!("{pad}// {}: export as an image asset\n{pad}Image({})\n", n.kind.label(), literal(&n.name, false)));
|
||
mods.push(".resizable()".into());
|
||
mods.push(format!(".frame(width: {}, height: {})", num(n.width), num(n.height)));
|
||
}
|
||
}
|
||
if let Some(c) = stroke_color(n) {
|
||
mods.push(format!(
|
||
".overlay(RoundedRectangle(cornerRadius: {}).stroke({}, lineWidth: {}))",
|
||
num(radius(n)),
|
||
swift_color(c),
|
||
num(n.stroke.weight)
|
||
));
|
||
}
|
||
if let Some(s) = drop_shadow(n) {
|
||
mods.push(format!(
|
||
".shadow(color: {}, radius: {}, x: {}, y: {})",
|
||
swift_color(s.color),
|
||
num(s.radius / 2.0),
|
||
num(s.offset.0),
|
||
num(s.offset.1)
|
||
));
|
||
}
|
||
if n.opacity < 1.0 {
|
||
mods.push(format!(".opacity({})", num(f64::from(n.opacity))));
|
||
}
|
||
mods.extend(extra.iter().cloned());
|
||
for m in mods {
|
||
out.push_str(&format!("{pad} {m}\n"));
|
||
}
|
||
}
|
||
|
||
// ------------------------------------------------------------------ Jetpack Compose
|
||
|
||
fn kotlin_color(c: Color) -> String {
|
||
let [r, g, b, a] = c.to_rgba8();
|
||
format!("Color(0x{a:02X}{r:02X}{g:02X}{b:02X})")
|
||
}
|
||
|
||
/// The Modifier chain for a layer (size, shadow, background, border, alpha, padding).
|
||
fn modifier(n: &Node, shape: &str, padding: bool) -> String {
|
||
let mut m = format!("Modifier.size({}.dp, {}.dp)", num(n.width), num(n.height));
|
||
if let Some(s) = drop_shadow(n) {
|
||
m.push_str(&format!(".shadow({}.dp, {shape})", num(s.radius / 2.0)));
|
||
}
|
||
if let Some(c) = first_fill(n) {
|
||
m.push_str(&format!(".background({}, {shape})", kotlin_color(c)));
|
||
}
|
||
if let Some(c) = stroke_color(n) {
|
||
m.push_str(&format!(".border({}.dp, {}, {shape})", num(n.stroke.weight), kotlin_color(c)));
|
||
}
|
||
if n.opacity < 1.0 {
|
||
m.push_str(&format!(".alpha({}f)", num(f64::from(n.opacity))));
|
||
}
|
||
if padding && let Some(l) = &n.layout {
|
||
let [t, r, b, lft] = l.padding;
|
||
if [t, r, b, lft].iter().any(|v| *v > 0.0) {
|
||
m.push_str(&format!(".padding(start = {}.dp, top = {}.dp, end = {}.dp, bottom = {}.dp)", num(lft), num(t), num(r), num(b)));
|
||
}
|
||
}
|
||
m
|
||
}
|
||
|
||
/// Jetpack Compose for a layer and its subtree at `depth`. A layer a boolean parameter shows sits
|
||
/// in an `if`.
|
||
pub(crate) fn compose(ctx: &Ctx, id: NodeId, depth: usize, out: &mut String) {
|
||
let Some(n) = ctx.doc.node(id) else { return };
|
||
if id != ctx.root
|
||
&& let Some(p) = ctx.param(n, "visible")
|
||
{
|
||
let pad = indent(depth);
|
||
out.push_str(&format!("{pad}if ({}) {{\n", p.ident));
|
||
compose_layer(ctx, n, depth + 1, out);
|
||
out.push_str(&format!("{pad}}}\n"));
|
||
return;
|
||
}
|
||
compose_layer(ctx, n, depth, out);
|
||
}
|
||
|
||
fn compose_layer(ctx: &Ctx, n: &Node, depth: usize, out: &mut String) {
|
||
let doc = ctx.doc;
|
||
let pad = indent(depth);
|
||
if ctx.too_deep(depth) {
|
||
out.push_str(&format!("{pad}// {} …\n", n.name));
|
||
return;
|
||
}
|
||
// Nested instances are calls; an instance swap parameter is a composable.
|
||
let call = match ctx.param(n, "mainComponent").filter(|_| n.id != ctx.root) {
|
||
Some(p) => Some(format!("{pad}{}()\n", p.ident)),
|
||
None => ctx.call(n, CodeLang::Compose, depth),
|
||
};
|
||
if let Some(call) = call {
|
||
out.push_str(&call);
|
||
return;
|
||
}
|
||
let shape = if radius(n) > 0.0 { format!("RoundedCornerShape({}.dp)", num(radius(n))) } else { "RectangleShape".to_string() };
|
||
match &n.kind {
|
||
NodeKind::Text(t) => {
|
||
let color = first_fill(n).map(kotlin_color).unwrap_or_else(|| "Color.Unspecified".into());
|
||
let text = ctx.param(n, "characters").map_or_else(|| literal(&t.characters, true), |p| p.ident.clone());
|
||
out.push_str(&format!(
|
||
"{pad}Text(\n{pad} text = {text},\n{pad} fontSize = {}.sp,\n{pad} fontWeight = FontWeight.W{},\n{pad} color = {color},\n{pad})\n",
|
||
num(t.style.font_size),
|
||
(t.style.weight().clamp(100, 900) / 100) * 100
|
||
));
|
||
}
|
||
NodeKind::Ellipse { .. } => out.push_str(&format!("{pad}Box(modifier = {})\n", modifier(n, "CircleShape", false))),
|
||
NodeKind::Rectangle => out.push_str(&format!("{pad}Box(modifier = {})\n", modifier(n, &shape, false))),
|
||
k if k.is_frame_like() || matches!(k, NodeKind::Group) => {
|
||
let children = ctx.kids(n);
|
||
let open = match n.layout.as_ref().map(|l| (l.mode, l)) {
|
||
Some((LayoutMode::Vertical, l)) => format!(
|
||
"Column(\n{pad} modifier = {},\n{pad} verticalArrangement = Arrangement.spacedBy({}.dp),\n{pad}) {{",
|
||
modifier(n, &shape, true),
|
||
num(l.gap)
|
||
),
|
||
Some((_, l)) => format!(
|
||
"Row(\n{pad} modifier = {},\n{pad} horizontalArrangement = Arrangement.spacedBy({}.dp),\n{pad} verticalAlignment = Alignment.CenterVertically,\n{pad}) {{",
|
||
modifier(n, &shape, true),
|
||
num(l.gap)
|
||
),
|
||
None => format!("Box(modifier = {}) {{", modifier(n, &shape, false)),
|
||
};
|
||
out.push_str(&format!("{pad}{open}\n"));
|
||
// A slot shows the instance's content, or else the main's.
|
||
let slot = ctx.param(n, "slot");
|
||
let base = match slot {
|
||
Some(p) => {
|
||
out.push_str(&format!("{pad} if ({0} != null) {{\n{pad} {0}()\n{pad} }} else {{\n", p.ident));
|
||
depth + 1
|
||
}
|
||
None => depth,
|
||
};
|
||
for c in &children {
|
||
if n.layout.is_none()
|
||
&& let Some(cn) = doc.node(*c)
|
||
{
|
||
let [_, _, _, _, x, y] = cn.transform.as_coeffs();
|
||
out.push_str(&format!("{}Box(modifier = Modifier.offset({}.dp, {}.dp)) {{\n", indent(base + 1), num(x), num(y)));
|
||
compose(ctx, *c, base + 2, out);
|
||
out.push_str(&format!("{}}}\n", indent(base + 1)));
|
||
} else {
|
||
compose(ctx, *c, base + 1, out);
|
||
}
|
||
}
|
||
if slot.is_some() {
|
||
out.push_str(&format!("{pad} }}\n"));
|
||
}
|
||
out.push_str(&format!("{pad}}}\n"));
|
||
}
|
||
_ => out.push_str(&format!(
|
||
"{pad}// {}: export as an image asset\n{pad}Image(painter = painterResource(R.drawable.asset), contentDescription = {}, modifier = Modifier.size({}.dp, {}.dp))\n",
|
||
n.kind.label(),
|
||
literal(&n.name, true),
|
||
num(n.width),
|
||
num(n.height)
|
||
)),
|
||
}
|
||
}
|
||
|
||
#[cfg(test)]
|
||
mod tests {
|
||
use super::*;
|
||
use crate::Session;
|
||
use crate::params::id_of;
|
||
use serde_json::json;
|
||
|
||
fn card(s: &mut Session) -> NodeId {
|
||
let f = id_of(&s.execute("frame.create", &json!({"x": 0, "y": 0, "width": 200, "height": 100, "name": "Card"})).unwrap()["id"]).unwrap();
|
||
s.execute("node.set", &json!({"id": f, "props": {"fills": ["#FFFFFF"], "cornerRadius": 12}})).unwrap();
|
||
s.execute("text.create", &json!({"text": "Say \"hi\" $5\nnow", "x": 0, "y": 0, "parent": f})).unwrap();
|
||
s.execute("shape.ellipse", &json!({"x": 0, "y": 0, "width": 24, "height": 24, "parent": f})).unwrap();
|
||
s.execute("layout.add", &json!({"ids": [f]})).unwrap();
|
||
f
|
||
}
|
||
|
||
#[test]
|
||
fn swiftui_and_compose_for_an_auto_layout_card() {
|
||
let mut s = Session::new();
|
||
let f = card(&mut s);
|
||
let doc = s.doc().unwrap();
|
||
let sw = code_for(doc, f, CodeLang::SwiftUi);
|
||
assert!(sw.contains("Stack(alignment:"), "{sw}");
|
||
assert!(sw.contains("Text(\"Say \\\"hi\\\" $5\\nnow\")"), "escaped: {sw}");
|
||
assert!(sw.contains("Ellipse()"));
|
||
assert!(sw.contains(".clipShape(RoundedRectangle(cornerRadius: 12))"));
|
||
let kt = code_for(doc, f, CodeLang::Compose);
|
||
assert!(kt.contains("Arrangement.spacedBy("), "{kt}");
|
||
assert!(kt.contains("\\$5"), "Kotlin escapes $: {kt}");
|
||
assert!(kt.contains("CircleShape"));
|
||
assert!(kt.contains("RoundedCornerShape(12.dp)"));
|
||
let css = code_for(doc, f, CodeLang::Css);
|
||
assert!(css.contains("display: flex;") && css.contains("border-radius: 12px;"));
|
||
// Through the command.
|
||
let v = s.execute("inspect.code", &json!({"id": f, "language": "compose"})).unwrap();
|
||
assert_eq!(v["code"].as_str().unwrap(), kt);
|
||
assert!(s.execute("inspect.code", &json!({"id": f, "language": "cobol"})).is_err());
|
||
}
|
||
|
||
#[test]
|
||
fn free_children_get_offsets_and_deep_trees_are_capped() {
|
||
let mut s = Session::new();
|
||
let mut parent = id_of(&s.execute("frame.create", &json!({"x": 0, "y": 0, "width": 50, "height": 50})).unwrap()["id"]).unwrap();
|
||
let root = parent;
|
||
s.execute("shape.rectangle", &json!({"x": 7, "y": 9, "width": 5, "height": 5, "parent": root})).unwrap();
|
||
for _ in 0..20 {
|
||
parent = id_of(&s.execute("frame.create", &json!({"x": 1, "y": 1, "width": 40, "height": 40, "parent": parent})).unwrap()["id"]).unwrap();
|
||
}
|
||
let doc = s.doc().unwrap();
|
||
let sw = code_for(doc, root, CodeLang::SwiftUi);
|
||
assert!(sw.contains(".offset(x: 7, y: 9)"), "{sw}");
|
||
assert!(sw.contains("…"), "depth capped");
|
||
let kt = code_for(doc, root, CodeLang::Compose);
|
||
assert!(kt.contains("Modifier.offset(7.dp, 9.dp)"));
|
||
assert!(code_for(doc, NodeId(999_999), CodeLang::Css).is_empty());
|
||
}
|
||
}
|