( frameIndex: number, totalChars: number, options: Pick<AdvancedGradientOptions, "direction" | "holdFrames">, )
| 23 | } |
| 24 | |
| 25 | function getScannerState( |
| 26 | frameIndex: number, |
| 27 | totalChars: number, |
| 28 | options: Pick<AdvancedGradientOptions, "direction" | "holdFrames">, |
| 29 | ): ScannerState { |
| 30 | const { direction = "forward", holdFrames = {} } = options |
| 31 | |
| 32 | if (direction === "bidirectional") { |
| 33 | const forwardFrames = totalChars |
| 34 | const holdEndFrames = holdFrames.end ?? 0 |
| 35 | const backwardFrames = totalChars - 1 |
| 36 | |
| 37 | if (frameIndex < forwardFrames) { |
| 38 | // Moving forward |
| 39 | return { |
| 40 | activePosition: frameIndex, |
| 41 | isHolding: false, |
| 42 | holdProgress: 0, |
| 43 | holdTotal: 0, |
| 44 | movementProgress: frameIndex, |
| 45 | movementTotal: forwardFrames, |
| 46 | isMovingForward: true, |
| 47 | } |
| 48 | } else if (frameIndex < forwardFrames + holdEndFrames) { |
| 49 | // Holding at end |
| 50 | return { |
| 51 | activePosition: totalChars - 1, |
| 52 | isHolding: true, |
| 53 | holdProgress: frameIndex - forwardFrames, |
| 54 | holdTotal: holdEndFrames, |
| 55 | movementProgress: 0, |
| 56 | movementTotal: 0, |
| 57 | isMovingForward: true, |
| 58 | } |
| 59 | } else if (frameIndex < forwardFrames + holdEndFrames + backwardFrames) { |
| 60 | // Moving backward |
| 61 | const backwardIndex = frameIndex - forwardFrames - holdEndFrames |
| 62 | return { |
| 63 | activePosition: totalChars - 2 - backwardIndex, |
| 64 | isHolding: false, |
| 65 | holdProgress: 0, |
| 66 | holdTotal: 0, |
| 67 | movementProgress: backwardIndex, |
| 68 | movementTotal: backwardFrames, |
| 69 | isMovingForward: false, |
| 70 | } |
| 71 | } else { |
| 72 | // Holding at start |
| 73 | return { |
| 74 | activePosition: 0, |
| 75 | isHolding: true, |
| 76 | holdProgress: frameIndex - forwardFrames - holdEndFrames - backwardFrames, |
| 77 | holdTotal: holdFrames.start ?? 0, |
| 78 | movementProgress: 0, |
| 79 | movementTotal: 0, |
| 80 | isMovingForward: false, |
| 81 | } |
| 82 | } |
no outgoing calls
no test coverage detected