Created
October 30, 2014 20:55
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| function OnClientFileSelected(sender, args) { | |
| var fileInput = sender; | |
| //get the file from the input field | |
| var file = args.get_fileInputField().files[0]; | |
| var imageType = /image.*/; | |
| //stop the image from uploading to the temp storage on the server | |
| if (file.type === 'image/jpeg') { | |
| sender.pauseUpload(); | |
| $('.ruUploadProgress').addClass('ruUploadSuccess'); | |
| $('.ruFileProgressWrap').css('display', 'none'); | |
| } | |
| if (file.type.match(imageType)) { | |
| var reader = new FileReader(); | |
| reader.onload = function (e) { | |
| var img = new Image(); | |
| img.src = reader.result; | |
| img.onload = function () { | |
| var MAX_HEIGHT = 800; | |
| var MAX_WIDTH = 600; | |
| var width = img.width; | |
| var height = img.height; | |
| if (width > height) { | |
| if (width > MAX_WIDTH) { | |
| height *= MAX_WIDTH / width; | |
| width = MAX_WIDTH; | |
| } | |
| } else { | |
| if (height > MAX_HEIGHT) { | |
| width *= MAX_HEIGHT / height; | |
| height = MAX_HEIGHT; | |
| } | |
| } | |
| var canvas = document.createElement('canvas'); | |
| canvas.width = width; | |
| canvas.height = height; | |
| var ctx = canvas.getContext("2d"); | |
| ctx.drawImage(img, 0, 0, width, height); | |
| var mpImg = new MegaPixImage(img); | |
| getImageOrientation(file, function (imgOrientation) { | |
| mpImg.render(canvas, { width: width, height: height, orientation: imgOrientation }); | |
| var dataurl = canvas.toDataURL("image/jpeg"); | |
| $('#MainContent_hiddenFile').val(dataurl); | |
| }); | |
| } | |
| } | |
| reader.readAsDataURL(file); | |
| } | |
| } | |
| function getImageOrientation(file, callBack) { | |
| EXIF.getData(file, function () { | |
| return callBack(EXIF.getAllTags(file).Orientation); | |
| }); | |
| } |
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