###
 * coffeescript-ui - Coffeescript User Interface System (CUI)
 * Copyright (c) 2013 - 2016 Programmfabrik GmbH
 * MIT Licence
 * https://github.com/programmfabrik/coffeescript-ui, http://www.coffeescript-ui.org
###

class CUI.FileReader extends CUI.FileUpload
	initOpts: ->
		super()
		@removeOpt("url")

	readOpts: ->
		CUI.Element::readOpts.call(@)

	getUploadFileClass: ->
		CUI.FileReaderFile

	uploadFile: (file) ->
		file.upload(file)

	@save: (filename, data, type = "text/csv") ->
		blob = new Blob([data], type: type)
		if (window.navigator.msSaveOrOpenBlob)
			window.navigator.msSaveBlob(blob, filename)
		else
			elem = window.document.createElement('a')
			elem.href = window.URL.createObjectURL(blob)
			elem.download = filename
			document.body.appendChild(elem);
			elem.click();
			document.body.removeChild(elem);
			window.URL.revokeObjectURL(blob)