works except for upload progress

2020-10-16 17:43:12 -07:00
parent 738d84045d
commit 796f16a003
10 changed files with 81 additions and 196 deletions
@@ -119,87 +119,6 @@ export function imageScaled(file, maxWidth, maxHeight, maxSize, forceSquare, onS
  img.src = URL.createObjectURL(file);
 }

-// Convert uploaded image into a base64-encoded string possibly scaling
-// linear dimensions or constraining to a square.
-export function imageFileScaledToBase64(file, width, height, forceSquare, onSuccess, onError) {
-  const img = new Image();
-  img.crossOrigin = 'Anonymous';
-  img.onerror = function(err) {
-    onError("Image format unrecognized");
-  }
-  img.onload = function() {
-    var dim = fitImageSize(this.width, this.height, width, height, forceSquare);
-    if (!dim) {
-      onError("Invalid image");
-      return;
-    }
-    var canvas = document.createElement('canvas');
-    canvas.width = dim.dstWidth;
-    canvas.height = dim.dstHeight;
-    var ctx = canvas.getContext('2d');
-    ctx.imageSmoothingEnabled = true;
-    ctx.drawImage(this, dim.xoffset, dim.yoffset, dim.srcWidth, dim.srcHeight,
-      0, 0, dim.dstWidth, dim.dstHeight);
-
-    var mime = (this.width != dim.dstWidth ||
-      this.height != dim.dstHeight ||
-      SUPPORTED_IMAGE_FORMATS.indexOf(file.type) < 0) ? 'image/jpeg' : file.type;
-    var imageBits = canvas.toDataURL(mime);
-    var parts = imageBits.split(',');
-    // Get actual image type: 'data:image/png;base64,'
-    mime = getMimeType(parts[0]);
-    if (!mime) {
-      onError("Unsupported image format");
-      return;
-    }
-    // Ensure the image is not too large
-    let quality = 0.78;
-    if (base64DecodedLen(imageBits.length) > MAX_INBAND_ATTACHMENT_SIZE) {
-      mime = 'image/jpeg';
-    }
-    if (mime == 'image/jpeg') {
-      // Reduce size of the jpeg by reducing image quality
-      while (base64DecodedLen(imageBits.length) > MAX_INBAND_ATTACHMENT_SIZE && quality > 0.45) {
-        imageBits = canvas.toDataURL(mime, quality);
-        quality *= 0.84;
-      }
-    }
-    if (base64DecodedLen(imageBits.length) > MAX_INBAND_ATTACHMENT_SIZE) {
-      onError("The image size " + bytesToHumanSize(base64DecodedLen(imageBits.length)) +
-        " exceeds the "  + bytesToHumanSize(MAX_INBAND_ATTACHMENT_SIZE) + " limit.", "err");
-      return;
-    }
-    canvas = null;
-    onSuccess(imageBits.split(',')[1], mime, dim.dstWidth, dim.dstHeight, fileNameForMime(file.name, mime));
-  };
-  img.src = URL.createObjectURL(file);
-}
-
-// Convert uploaded image file to base64-encoded string without scaling/converting the image
-export function imageFileToBase64(file, onSuccess, onError) {
-  var reader = new FileReader();
-  reader.addEventListener('load', function() {
-    var parts = reader.result.split(',');
-    var mime = getMimeType(parts[0]);
-    if (!mime) {
-      onError("Failed to process image file");
-      return;
-    }
-
-    // Get image size.
-    var img = new Image();
-    img.crossOrigin = 'Anonymous';
-    img.onload = function() {
-      onSuccess(parts[1], mime, this.width, this.height, fileNameForMime(file.name, mime));
-    }
-    img.onerror = function(err) {
-      onError("Image format not recognized");
-    }
-    img.src = URL.createObjectURL(file);
-  }, false);
-  reader.readAsDataURL(file);
-}
-
 // Convert File to base64 string.
 export function fileToBase64(file, onSuccess) {
  const reader = new FileReader();