Redmine/public/javascripts/attachments.js

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JavaScript
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/* Redmine - project management software
Copyright (C) 2006-2013 Jean-Philippe Lang */
function addFile(inputEl, file, eagerUpload) {
if ($('#attachments_fields').children().length < 10) {
var attachmentId = addFile.nextAttachmentId++;
var fileSpan = $('<span>', { id: 'attachments_' + attachmentId });
fileSpan.append(
$('<input>', { type: 'text', 'class': 'filename readonly', name: 'attachments[' + attachmentId + '][filename]', readonly: 'readonly'} ).val(file.name),
$('<input>', { type: 'text', 'class': 'description', name: 'attachments[' + attachmentId + '][description]', maxlength: 255, placeholder: $(inputEl).data('description-placeholder') } ).toggle(!eagerUpload),
$('<a>&nbsp</a>').attr({ href: "#", 'class': 'remove-upload' }).click(removeFile).toggle(!eagerUpload)
).appendTo('#attachments_fields');
if(eagerUpload) {
ajaxUpload(file, attachmentId, fileSpan, inputEl);
}
return attachmentId;
}
return null;
}
addFile.nextAttachmentId = 1;
function ajaxUpload(file, attachmentId, fileSpan, inputEl) {
function onLoadstart(e) {
fileSpan.removeClass('ajax-waiting');
fileSpan.addClass('ajax-loading');
$('input:submit', $(this).parents('form')).attr('disabled', 'disabled');
}
function onProgress(e) {
if(e.lengthComputable) {
this.progressbar( 'value', e.loaded * 100 / e.total );
}
}
function actualUpload(file, attachmentId, fileSpan, inputEl) {
ajaxUpload.uploading++;
uploadBlob(file, $(inputEl).data('upload-path'), attachmentId, {
loadstartEventHandler: onLoadstart.bind(progressSpan),
progressEventHandler: onProgress.bind(progressSpan)
})
.done(function(result) {
progressSpan.progressbar( 'value', 100 ).remove();
fileSpan.find('input.description, a').css('display', 'inline-block');
})
.fail(function(result) {
progressSpan.text(result.statusText);
}).always(function() {
ajaxUpload.uploading--;
fileSpan.removeClass('ajax-loading');
var form = fileSpan.parents('form');
if (form.queue('upload').length == 0 && ajaxUpload.uploading == 0) {
$('input:submit', form).removeAttr('disabled');
}
form.dequeue('upload');
});
}
var progressSpan = $('<div>').insertAfter(fileSpan.find('input.filename'));
progressSpan.progressbar();
fileSpan.addClass('ajax-waiting');
var maxSyncUpload = $(inputEl).data('max-concurrent-uploads');
if(maxSyncUpload == null || maxSyncUpload <= 0 || ajaxUpload.uploading < maxSyncUpload)
actualUpload(file, attachmentId, fileSpan, inputEl);
else
$(inputEl).parents('form').queue('upload', actualUpload.bind(this, file, attachmentId, fileSpan, inputEl));
}
ajaxUpload.uploading = 0;
function removeFile() {
$(this).parent('span').remove();
return false;
}
function uploadBlob(blob, uploadUrl, attachmentId, options) {
var actualOptions = $.extend({
loadstartEventHandler: $.noop,
progressEventHandler: $.noop
}, options);
uploadUrl = uploadUrl + '?attachment_id=' + attachmentId;
if (blob instanceof window.File) {
uploadUrl += '&filename=' + encodeURIComponent(blob.name);
}
return $.ajax(uploadUrl, {
type: 'POST',
contentType: 'application/octet-stream',
beforeSend: function(jqXhr) {
jqXhr.setRequestHeader('Accept', 'application/js');
},
xhr: function() {
var xhr = $.ajaxSettings.xhr();
xhr.upload.onloadstart = actualOptions.loadstartEventHandler;
xhr.upload.onprogress = actualOptions.progressEventHandler;
return xhr;
},
data: blob,
cache: false,
processData: false
});
}
function addInputFiles(inputEl) {
var clearedFileInput = $(inputEl).clone().val('');
if (inputEl.files) {
// upload files using ajax
uploadAndAttachFiles(inputEl.files, inputEl);
$(inputEl).remove();
} else {
// browser not supporting the file API, upload on form submission
var attachmentId;
var aFilename = inputEl.value.split(/\/|\\/);
attachmentId = addFile(inputEl, { name: aFilename[ aFilename.length - 1 ] }, false);
if (attachmentId) {
$(inputEl).attr({ name: 'attachments[' + attachmentId + '][file]', style: 'display:none;' }).appendTo('#attachments_' + attachmentId);
}
}
clearedFileInput.insertAfter('#attachments_fields');
}
function uploadAndAttachFiles(files, inputEl) {
var maxFileSize = $(inputEl).data('max-file-size');
var maxFileSizeExceeded = $(inputEl).data('max-file-size-message');
var sizeExceeded = false;
$.each(files, function() {
if (this.size && maxFileSize != null && this.size > parseInt(maxFileSize)) {sizeExceeded=true;}
});
if (sizeExceeded) {
window.alert(maxFileSizeExceeded);
} else {
$.each(files, function() {addFile(inputEl, this, true);});
}
}
function handleFileDropEvent(e) {
$(this).removeClass('fileover');
blockEventPropagation(e);
if ($.inArray('Files', e.dataTransfer.types) > -1) {
uploadAndAttachFiles(e.dataTransfer.files, $('input:file.file_selector'));
}
}
function dragOverHandler(e) {
$(this).addClass('fileover');
blockEventPropagation(e);
}
function dragOutHandler(e) {
$(this).removeClass('fileover');
blockEventPropagation(e);
}
function setupFileDrop() {
if (window.File && window.FileList && window.ProgressEvent && window.FormData) {
$.event.fixHooks.drop = { props: [ 'dataTransfer' ] };
$('form div.box').has('input:file').each(function() {
$(this).on({
dragover: dragOverHandler,
dragleave: dragOutHandler,
drop: handleFileDropEvent
});
});
}
}
$(document).ready(setupFileDrop);