From c43adc8a374aaa057a090e99161afba9bbc38286 Mon Sep 17 00:00:00 2001
From: Jules Laplace <julescarbon@gmail.com>
Date: Wed, 18 Nov 2020 14:57:04 +0100
Subject: preloading curtain images

---
 animism-align/frontend/app/utils/index.js | 79 -------------------------------
 1 file changed, 79 deletions(-)

(limited to 'animism-align/frontend/app/utils/index.js')

diff --git a/animism-align/frontend/app/utils/index.js b/animism-align/frontend/app/utils/index.js
index d6c1a16..ddbfb7e 100644
--- a/animism-align/frontend/app/utils/index.js
+++ b/animism-align/frontend/app/utils/index.js
@@ -114,85 +114,6 @@ export const sha256_tree = (sha256, branch_size=2, tree_depth=2) => {
   return tree
 }
 
-export const preloadImage = (url, anonymous=false) => (
-  new Promise((resolve, reject) => {
-    if (typeof url === 'object' && url instanceof Image) {
-      return resolve(url)
-    }
-    const image = new Image()
-    let loaded = false
-    image.onload = () => {
-      if (loaded) return
-      loaded = true
-      image.onload = null
-      image.onerror = null
-      resolve(image)
-    }
-    image.onerror = () => {
-      if (loaded) return
-      image.onload = null
-      image.onerror = null
-      resolve(image)
-    }
-    // console.log(img.src)
-    if (anonymous) {
-      image.crossOrigin = 'anonymous'
-    }
-    image.src = url
-    if (image.complete) {
-      image.onload()
-    }
-  })
-)
-
-export const cropImage = (url, crop, maxSide) => {
-  return new Promise((resolve, reject) => {
-    preloadImage(url, true)
-    .then(image => {
-      let { x, y, w, h } = crop
-      x = parseFloat(x)
-      y = parseFloat(y)
-      w = parseFloat(w)
-      h = parseFloat(h)
-      const canvas = document.createElement('canvas')
-      const ctx = canvas.getContext('2d')
-      const { naturalWidth, naturalHeight } = image
-      
-      let width, height
-      let cropWidth = naturalWidth * w
-      let cropHeight = naturalHeight * h
-
-      if (maxSide > 0) {
-        if (cropWidth > cropHeight) {
-          width = Math.min(maxSide, cropWidth)
-          height = cropHeight * width / cropWidth
-        } else {
-          height = Math.min(maxSide, cropHeight)
-          width = cropWidth * height / cropHeight
-        }
-      } else {
-        width = cropWidth
-        height = cropHeight
-      }
-
-      canvas.width = width
-      canvas.height = height
-
-      ctx.drawImage(
-        image,
-        Math.round(x * naturalWidth),
-        Math.round(y * naturalHeight),
-        Math.round(w * naturalWidth),
-        Math.round(h * naturalHeight),
-        0, 0, canvas.width, canvas.height
-      )
-      // console.log(x, y, w, h)
-      // console.log(naturalWidth, naturalHeight)
-      // console.log(width, height)
-      resolve(canvas)
-    })
-  })
-}
 export const urlSearchParamsToDict = search => {
   const params = new URLSearchParams(search)
   const dict = {}
-- 
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