about summary refs log tree commit diff
path: root/src/view/com/lightbox/ImageViewing/utils.ts
diff options
context:
space:
mode:
Diffstat (limited to 'src/view/com/lightbox/ImageViewing/utils.ts')
-rw-r--r--src/view/com/lightbox/ImageViewing/utils.ts139
1 files changed, 0 insertions, 139 deletions
diff --git a/src/view/com/lightbox/ImageViewing/utils.ts b/src/view/com/lightbox/ImageViewing/utils.ts
deleted file mode 100644
index d56eea4f4..000000000
--- a/src/view/com/lightbox/ImageViewing/utils.ts
+++ /dev/null
@@ -1,139 +0,0 @@
-/**
- * Copyright (c) JOB TODAY S.A. and its affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- */
-
-import {Animated, NativeTouchEvent} from 'react-native'
-import {Dimensions, Position} from './@types'
-
-type CacheStorageItem = {key: string; value: any}
-
-export const createCache = (cacheSize: number) => ({
-  _storage: [] as CacheStorageItem[],
-  get(key: string): any {
-    const {value} =
-      this._storage.find(({key: storageKey}) => storageKey === key) || {}
-
-    return value
-  },
-  set(key: string, value: any) {
-    if (this._storage.length >= cacheSize) {
-      this._storage.shift()
-    }
-
-    this._storage.push({key, value})
-  },
-})
-
-export const splitArrayIntoBatches = (arr: any[], batchSize: number): any[] =>
-  arr.reduce((result, item) => {
-    const batch = result.pop() || []
-
-    if (batch.length < batchSize) {
-      batch.push(item)
-      result.push(batch)
-    } else {
-      result.push(batch, [item])
-    }
-
-    return result
-  }, [])
-
-export const getImageTransform = (
-  image: Dimensions | null,
-  screen: Dimensions,
-) => {
-  if (!image?.width || !image?.height) {
-    return [] as const
-  }
-
-  const wScale = screen.width / image.width
-  const hScale = screen.height / image.height
-  const scale = Math.min(wScale, hScale)
-  const {x, y} = getImageTranslate(image, screen)
-
-  return [{x, y}, scale] as const
-}
-
-export const getImageStyles = (
-  image: Dimensions | null,
-  translate: Animated.ValueXY,
-  scale?: Animated.Value,
-) => {
-  if (!image?.width || !image?.height) {
-    return {width: 0, height: 0}
-  }
-
-  const transform = translate.getTranslateTransform()
-
-  if (scale) {
-    // @ts-ignore TODO - is scale incorrect? might need to remove -prf
-    transform.push({scale}, {perspective: new Animated.Value(1000)})
-  }
-
-  return {
-    width: image.width,
-    height: image.height,
-    transform,
-  }
-}
-
-export const getImageTranslate = (
-  image: Dimensions,
-  screen: Dimensions,
-): Position => {
-  const getTranslateForAxis = (axis: 'x' | 'y'): number => {
-    const imageSize = axis === 'x' ? image.width : image.height
-    const screenSize = axis === 'x' ? screen.width : screen.height
-
-    return (screenSize - imageSize) / 2
-  }
-
-  return {
-    x: getTranslateForAxis('x'),
-    y: getTranslateForAxis('y'),
-  }
-}
-
-export const getImageDimensionsByTranslate = (
-  translate: Position,
-  screen: Dimensions,
-): Dimensions => ({
-  width: screen.width - translate.x * 2,
-  height: screen.height - translate.y * 2,
-})
-
-export const getImageTranslateForScale = (
-  currentTranslate: Position,
-  targetScale: number,
-  screen: Dimensions,
-): Position => {
-  const {width, height} = getImageDimensionsByTranslate(
-    currentTranslate,
-    screen,
-  )
-
-  const targetImageDimensions = {
-    width: width * targetScale,
-    height: height * targetScale,
-  }
-
-  return getImageTranslate(targetImageDimensions, screen)
-}
-
-export const getDistanceBetweenTouches = (
-  touches: NativeTouchEvent[],
-): number => {
-  const [a, b] = touches
-
-  if (a == null || b == null) {
-    return 0
-  }
-
-  return Math.sqrt(
-    Math.pow(a.pageX - b.pageX, 2) + Math.pow(a.pageY - b.pageY, 2),
-  )
-}