我想使用Jquery-File-Upload实现客户端图片大小调整:
https://github.com/blueimp/jQuery-File-Upload/wiki/Client-side-Image-Resizing
我想在coffeescript中实现它,以便使用我从这个railscast中找到的一些文件上传代码:
http://railscasts.com/episodes/383-uploading-to-amazon-s3
我不确定如何将disableImageResize示例与coffeescript结合使用。这就是我所拥有的,它不起作用(我可以运行应用程序,但它似乎没有做任何调整大小):
jQuery ->
$('#new_image').fileupload
dataType: "script"
disableImageResize: /Android(?!.*Chrome)|Opera/
.test(window.navigator && navigator.userAgent),
imageMaxWidth: 667,
imageMaxHeight: 667
add: (e, data) ->
types = /(\.|\/)(gif|jpe?g|png)$/i
file = data.files[0]
if types.test(file.type) || types.test(file.name)
$('#images').append('<div class="placeholder"></div>');
$('.placeholder').hide();
data.context = $(tmpl("template-upload", file))
$('#imageUploadProgress').append(data.context)
data.submit()
else
alert("#{file.name} is not a gif, jpeg, or png image file")
progress: (e, data) ->
if data.context
progress = parseInt(data.loaded / data.total * 100, 10)
data.context.find('.bar').css('width', progress + '%')
if progress == 100
$('.placeholder').show();
# scroll to the bottom of the thumbGallery to show recently uploaded image
document.getElementById("images").scrollTop = document.getElementById("images").scrollHeight
有人可以告诉我我做错了什么吗?我发现了有关同一主题的其他StackOverflow问题,但两者都没有答案:
How to resize images client side using jquery file upload
Resizing image at client-side using JQuery file upload to amazon S3
答案 0 :(得分:1)
简单的方法是删除add回调。否则,您负责手动触发调整大小,我还没有找到该怎么做!