add cancel swipe to JobListItem

src/components/JobListItem.tsx

@@ -1,30 +1,193 @@
+import { useCallback, useEffect, useRef, useState } from "react"
+import { XIcon } from "lucide-react"
+
 import { Progress } from "@/components/ui/progress"
 import { cn } from "@/lib/utils"
-import { formatTime } from "@/utils/datetime"
+import { formatElapsed, formatTime } from "@/utils/datetime"
+
+const SWIPE_THRESHOLD = 100
+const CANCEL_THRESHOLD = 150
 
 export interface JobListItemProps {
   title: string
-  runningTime: string
   progress: number
   startTime?: string
   eta?: string
   className?: string
+  onCancel?: () => void
 }
 
-export function JobListItem({ title, runningTime, progress, startTime, eta, className }: JobListItemProps) {
+export function JobListItem({ title, progress, startTime, eta, className, onCancel }: JobListItemProps) {
+  const [displayTime, setDisplayTime] = useState(() =>
+    startTime ? formatElapsed(startTime) : 0,
+  )
+
+  const intervalRef = useRef<ReturnType<typeof setInterval> | null>(null)
+
+  // Swipe state
+  const [offsetX, setOffsetX] = useState(0)
+  const [isSwiping, setIsSwiping] = useState(false)
+  const [isDismissing, setIsDismissing] = useState(false)
+  const startXRef = useRef(0)
+  const startYRef = useRef(0)
+  const currentOffsetRef = useRef(0)
+  const isTrackingRef = useRef(false)
+  const directionLockedRef = useRef<"horizontal" | "vertical" | null>(null)
+
+  useEffect(() => {
+    if (!startTime) return
+
+    intervalRef.current = setInterval(() => {
+      setDisplayTime(formatElapsed(startTime))
+    }, 1000)
+
+    return () => {
+      if (intervalRef.current) clearInterval(intervalRef.current)
+    }
+  }, [startTime])
+
+  const handleCancel = useCallback(() => {
+    if (onCancel) {
+      onCancel()
+    } else {
+      console.log(`Cancel job: ${title}`)
+    }
+  }, [onCancel, title])
+
+  const handlePointerDown = useCallback((e: React.PointerEvent) => {
+    // Only track primary pointer (left mouse / single touch)
+    if (e.button !== 0) return
+    startXRef.current = e.clientX
+    startYRef.current = e.clientY
+    isTrackingRef.current = true
+    directionLockedRef.current = null
+    currentOffsetRef.current = 0
+  }, [])
+
+  const handlePointerMove = useCallback((e: React.PointerEvent) => {
+    if (!isTrackingRef.current) return
+
+    const deltaX = e.clientX - startXRef.current
+    const deltaY = e.clientY - startYRef.current
+
+    // Determine direction lock on first significant movement
+    if (!directionLockedRef.current) {
+      const absDx = Math.abs(deltaX)
+      const absDy = Math.abs(deltaY)
+      if (absDx < 5 && absDy < 5) return // Dead zone
+
+      if (absDx > absDy) {
+        directionLockedRef.current = "horizontal"
+        setIsSwiping(true)
+        // Capture pointer to continue receiving events even outside element
+        ;(e.target as HTMLElement).setPointerCapture(e.pointerId)
+      } else {
+        directionLockedRef.current = "vertical"
+        isTrackingRef.current = false
+        return
+      }
+    }
+
+    if (directionLockedRef.current !== "horizontal") return
+
+    // Only allow swiping left (negative deltaX), with resistance for right swipe
+    const clampedOffset = deltaX > 0 ? deltaX * 0.2 : deltaX
+    currentOffsetRef.current = clampedOffset
+    setOffsetX(clampedOffset)
+  }, [])
+
+  const handlePointerUp = useCallback(() => {
+    if (!isTrackingRef.current && !isSwiping) return
+    isTrackingRef.current = false
+
+    const offset = currentOffsetRef.current
+
+    if (offset < -CANCEL_THRESHOLD) {
+      // Dismiss: animate off-screen then trigger cancel
+      setIsDismissing(true)
+      setOffsetX(-window.innerWidth)
+      setTimeout(() => {
+        handleCancel()
+        setIsDismissing(false)
+        setOffsetX(0)
+        setIsSwiping(false)
+      }, 300)
+    } else {
+      // Snap back
+      setOffsetX(0)
+      setTimeout(() => {
+        setIsSwiping(false)
+      }, 200)
+    }
+  }, [isSwiping, handleCancel])
+
+  const handlePointerCancel = useCallback(() => {
+    isTrackingRef.current = false
+    directionLockedRef.current = null
+    setOffsetX(0)
+    setIsSwiping(false)
+  }, [])
+
+  const swipeProgress = Math.min(Math.abs(offsetX) / SWIPE_THRESHOLD, 1)
+  const pastThreshold = Math.abs(offsetX) > SWIPE_THRESHOLD
+
   return (
-    <div className={cn("flex flex-col gap-2 rounded-lg border p-3", className)}>
-      <div className="flex items-center justify-between">
-        <span className="text-sm font-medium">{title}</span>
-        <span className="text-xs text-muted-foreground tabular-nums">{runningTime}</span>
+    <div
+      className={cn("relative overflow-hidden rounded-lg", className)}
+      style={{ touchAction: "pan-y" }}
+    >
+      {/* Background layer revealed on swipe */}
+      <div
+        className={cn(
+          "absolute inset-0 flex items-center justify-end rounded-lg px-4 transition-colors",
+          pastThreshold ? "bg-destructive" : "bg-destructive/60",
+        )}
+        style={{
+          opacity: swipeProgress,
+        }}
+      >
+        <XIcon
+          className={cn(
+            "size-5 text-white transition-transform",
+            pastThreshold && "scale-125",
+          )}
+        />
       </div>
-      <Progress value={progress} />
-      {(startTime || eta) && (
+
+      {/* Foreground card */}
+      <div
+        className={cn(
+          "relative flex flex-col gap-2 rounded-lg border bg-background p-3",
+          !isSwiping && !isDismissing && "transition-transform duration-200 ease-out",
+          isDismissing && "transition-transform duration-300 ease-in",
+        )}
+        style={{
+          transform: `translateX(${offsetX}px)`,
+        }}
+        onPointerDown={handlePointerDown}
+        onPointerMove={handlePointerMove}
+        onPointerUp={handlePointerUp}
+        onPointerCancel={handlePointerCancel}
+      >
         <div className="flex items-center justify-between">
-          <span className="text-xs text-muted-foreground tabular-nums">{startTime ? formatTime(startTime) : ""} started</span>
-          <span className="text-xs text-muted-foreground tabular-nums">{eta ? `ETA ${formatTime(eta)}` : ""}</span>
+          <span className="text-sm font-medium">{title}</span>
+          <button
+            type="button"
+            className="inline-flex items-center justify-center rounded-md p-1 text-muted-foreground hover:text-destructive focus:outline-none focus:ring-2 focus:ring-destructive focus:ring-offset-2 transition-colors"
+            aria-label={`Cancel job: ${title}`}
+            onClick={handleCancel}
+          >
+            <XIcon className="size-4" />
+          </button>
         </div>
-      )}
+        <Progress value={progress} />
+        {(startTime || eta) && (
+          <div className="flex items-center justify-between">
+            <span className="text-xs text-muted-foreground tabular-nums">{displayTime}</span>
+            <span className="text-xs text-muted-foreground tabular-nums">{eta ? `ETA ${formatTime(eta)}` : ""}</span>
+          </div>
+        )}
+      </div>
     </div>
   )
 }