39 lines
1.5 KiB
Text
39 lines
1.5 KiB
Text
# build_more.ludic - <let name="{value}"/> names a value for the siblings after it, and
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# <provide name="{value}"> gives it to everything inside, components included (React's context)
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function bd_let(ui_st: mut UiState, k: UiTpl, e: UiEnv) -> UiEnv {
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let le = env_new(ui_st, e)
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for i in 0 .. len(k.keys) { env_bind(le, k.keys[i], ui_eval(ui_st, k.vals[i], e)) }
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return le
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}
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function bd_provide(ui_st: mut UiState, k: UiTpl, e: UiEnv, key: string, out: []UiNode) -> void {
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let cx = env_new(ui_st, e.ctx)
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for i in 0 .. len(k.keys) { env_bind(cx, k.keys[i], ui_eval(ui_st, k.vals[i], e)) }
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let pe = env_new(ui_st, e)
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pe.ctx = cx
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bd_kids(ui_st, k.kids, pe, key, out)
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}
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# a fragment's (or a template's) content: its elements, or its words as a text of their own
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function bd_group(ui_st: mut UiState, k: UiTpl, e: UiEnv, key: string, out: []UiNode) -> void {
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if k.text == null {
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bd_kids(ui_st, k.kids, e, key, out)
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return
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}
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let t = nd_take(ui_st)
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t.kind = UI_TEXT
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t.key = key
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t.text = ui_tr(ui_st, ui_eval_text(ui_st, k.text, e))
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t.env = e
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ui_kept(out, t)
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}
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# text inside text - <p>Hi <b>there</b></p>, <h3><slot/></h3> - reads as one line of it
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function el_inline(ui_st: mut UiState, n: UiNode) -> void {
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if n.kind != UI_TEXT or len(n.children) == 0 { return }
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var s = n.text
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for i in 0 .. len(n.children) {
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let c = n.children[i]
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el_inline(ui_st, c)
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if len(s) == 0 { s = c.text } else if len(c.text) > 0 { s = mm_join(ui_st, s, " ", c.text) }
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}
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n.text = s
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List.clear(n.children)
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}
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