The compiler turns a component declaration into: - a record of its props and state; - a constructor, a props setter, a model and a call; - a class, registered with ludic.ui at start. Its template and styles are read from beside it and compiled in, with @import inlined, and a missing template fails the build. In the runtime: - each mounted instance keeps its own props and state, and `set` in a template writes the state; - styles are scoped to the component; - class, style and id on a component's tag land on its root, styled by the parent's sheet too; - ui_reload re-reads a component's files from disk and keeps instances. The package's own module is now ludic_ui, so a program may call a directory of its own ui. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
45 lines
1.5 KiB
Text
45 lines
1.5 KiB
Text
# build_class.ludic - a Ludic component's instance built: the parent's attributes are its props (id,
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# class and style go on its root element instead, styled by the parent's sheet as well as its own),
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# its model is its props, state and fields, and its template reads nothing else
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function bd_class(k: UiTpl, e: UiEnv, key: string, out: []UiNode) -> void {
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let cls = k.cls
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uc_load(cls)
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let it = in_get(key, cls)
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let props = Value.object()
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for i in 0 .. len(k.keys) {
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let a = k.keys[i]
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if a != "class" and a != "style" and a != "id" { Value.put(props, a, ui_eval(k.vals[i], e)) }
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}
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cls.props(it.ptr, props)
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let ce = env_new(null)
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ce.model = cls.model(it.ptr)
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ce.inst = it
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ce.ctx = e.ctx
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ce.slot = k
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ce.slot_env = e
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ce.on_names = k.on_keys
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ce.on_acts = k.on_acts
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ce.on_envs = new []UiEnv
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for i in 0 .. len(k.on_keys) { push(ce.on_envs, e) }
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lc_note(key, k.on_keys, k.on_acts, e)
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let at = len(out)
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let root = new []UiTpl
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push(root, cls.root)
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bd_kids(root, ce, key, out)
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if len(out) > at { bd_pass_down(out[at], k, e) }
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}
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# <Card class="wide" style="margin: 4px" id="c"> puts those on the card's own root element
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function bd_pass_down(n: UiNode, k: UiTpl, e: UiEnv) -> void {
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let c = tpl_attr(k, "class")
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if c != null {
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let parts = lss_split(ui_eval_text(c, e), 32)
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for i in 0 .. len(parts) {
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if len(parts[i]) > 0 { push(n.classes, parts[i]) }
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}
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}
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let id = tpl_attr(k, "id")
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if id != null { n.id = ui_eval_text(id, e) }
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if k.style != null { n.style2 = k.style }
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n.sheet2 = k.sheet
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n.env2 = e
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}
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