feat(ui): Select, dropdown, popover styles & transitions (#11675)

1 files changed, 132 insertions, 0 deletions

diff --git a/packages/ui/src/components/cycle-label.tsx b/packages/ui/src/components/cycle-label.tsx
new file mode 100644
index 000000000..f1eaa88f3
--- /dev/null
+++ b/packages/ui/src/components/cycle-label.tsx
@@ -0,0 +1,132 @@
+import "./cycle-label.css"
+import { createEffect, createSignal, JSX, on } from "solid-js"
+
+export interface CycleLabelProps extends JSX.HTMLAttributes<HTMLSpanElement> {
+  value: string
+  onValueChange?: (value: string) => void
+  duration?: number | ((value: string) => number)
+  stagger?: number
+  opacity?: [number, number]
+  blur?: [number, number]
+  skewX?: number
+  onAnimationStart?: () => void
+  onAnimationEnd?: () => void
+}
+
+const segmenter =
+  typeof Intl !== "undefined" && Intl.Segmenter ? new Intl.Segmenter("en", { granularity: "grapheme" }) : null
+
+const getChars = (text: string): string[] =>
+  segmenter ? Array.from(segmenter.segment(text), (s) => s.segment) : text.split("")
+
+const wait = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms))
+
+export function CycleLabel(props: CycleLabelProps) {
+  const getDuration = (text: string) => {
+    const d = props.duration ?? Number(getComputedStyle(document.documentElement).getPropertyValue("--transition-duration")) ?? 200
+    return typeof d === "function" ? d(text) : d
+  }
+  const stagger = () => props?.stagger ?? 30
+  const opacity = () => props?.opacity ?? [0, 1]
+  const blur = () => props?.blur ?? [0, 0]
+  const skewX = () => props?.skewX ?? 10
+
+  let containerRef: HTMLSpanElement | undefined
+  let isAnimating = false
+  const [currentText, setCurrentText] = createSignal(props.value)
+
+  const setChars = (el: HTMLElement, text: string, state: "enter" | "exit" | "pre" = "enter") => {
+    el.innerHTML = ""
+    const chars = getChars(text)
+    chars.forEach((char, i) => {
+      const span = document.createElement("span")
+      span.textContent = char === " " ? "\u00A0" : char
+      span.className = `cycle-char ${state}`
+      span.style.setProperty("--i", String(i))
+      el.appendChild(span)
+    })
+  }
+
+  const animateToText = async (newText: string) => {
+    if (!containerRef || isAnimating) return
+    if (newText === currentText()) return
+
+    isAnimating = true
+    props.onAnimationStart?.()
+
+    const dur = getDuration(newText)
+    const stag = stagger()
+
+    containerRef.style.width = containerRef.offsetWidth + "px"
+
+    const oldChars = containerRef.querySelectorAll(".cycle-char")
+    oldChars.forEach((c) => c.classList.replace("enter", "exit"))
+
+    const clone = containerRef.cloneNode(false) as HTMLElement
+    Object.assign(clone.style, {
+      position: "absolute",
+      visibility: "hidden",
+      width: "auto",
+      transition: "none",
+    })
+    setChars(clone, newText)
+    document.body.appendChild(clone)
+    const nextWidth = clone.offsetWidth
+    clone.remove()
+
+    const exitTime = oldChars.length * stag + dur
+    await wait(exitTime * 0.3)
+
+    containerRef.style.width = nextWidth + "px"
+
+    const widthDur = 200
+    await wait(widthDur * 0.3)
+
+    setChars(containerRef, newText, "pre")
+    containerRef.offsetWidth
+
+    Array.from(containerRef.children).forEach((c) => (c.className = "cycle-char enter"))
+    setCurrentText(newText)
+    props.onValueChange?.(newText)
+
+    const enterTime = getChars(newText).length * stag + dur
+    await wait(enterTime)
+
+    containerRef.style.width = ""
+    isAnimating = false
+    props.onAnimationEnd?.()
+  }
+
+  createEffect(
+    on(
+      () => props.value,
+      (newValue) => {
+        if (newValue !== currentText()) {
+          animateToText(newValue)
+        }
+      },
+    ),
+  )
+
+  const initRef = (el: HTMLSpanElement) => {
+    containerRef = el
+    setChars(el, props.value)
+  }
+
+  return (
+    <span
+      ref={initRef}
+      class={`cycle-label ${props.class ?? ""}`}
+      style={{
+        "--c-duration": `${getDuration(currentText())}ms`,
+        "--c-stagger": `${stagger()}ms`,
+        "--c-opacity-start": opacity()[0],
+        "--c-opacity-end": opacity()[1],
+        "--c-blur-start": `${blur()[0]}px`,
+        "--c-blur-end": `${blur()[1]}px`,
+        "--c-skew": `${skewX()}deg`,
+        ...(typeof props.style === "object" ? props.style : {}),
+      }}
+    />
+  )
+}
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