/* globals fileUploadHandler, Handlebars, fileUpload */
/* exported fileUpload */
function readAsDataURL(file, callback) {
const reader = new FileReader();
reader.onload = ev => callback(ev.target.result, file);
return reader.readAsDataURL(file);
}
function getUploadPreview(file, callback) {
// If greater then 10MB don't try and show a preview
if (file.file.size > (10 * 1000000)) {
return callback(file, null);
} else if (file.file.type == null) {
callback(file, null);
} else if ((file.file.type.indexOf('audio') > -1) || (file.file.type.indexOf('video') > -1) || (file.file.type.indexOf('image') > -1)) {
file.type = file.file.type.split('/')[0];
return readAsDataURL(file.file, content => callback(file, content));
} else {
return callback(file, null);
}
}
function formatBytes(bytes, decimals) {
if (bytes === 0) {
return '0 Bytes';
}
const k = 1000;
const dm = (decimals + 1) || 3;
const sizes = [
'Bytes',
'KB',
'MB',
'GB',
'TB',
'PB'
];
const i = Math.floor(Math.log(bytes) / Math.log(k));
return `${ parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) } ${ sizes[i] }`;
}
fileUpload = function(filesToUpload) {
const roomId = Session.get('openedRoom');
const files = [].concat(filesToUpload);
function consume() {
const file = files.pop();
if ((file == null)) {
swal.close();
return;
}
if (!RocketChat.fileUploadIsValidContentType(file.file.type)) {
swal({
title: t('FileUpload_MediaType_NotAccepted'),
text: file.file.type || `*.${ s.strRightBack(file.file.name, '.') }`,
type: 'error',
timer: 3000
});
return;
}
if (file.file.size === 0) {
swal({
title: t('FileUpload_File_Empty'),
type: 'error',
timer: 1000
});
return;
}
return getUploadPreview(file, function(file, preview) {
let text = '';
if (file.type === 'audio') {
text = `\
`;
} else if (file.type === 'video') {
text = `\
`;
} else if (file.type === 'image') {
text = `\
`;
} else {
const fileSize = formatBytes(file.file.size);
text = `\
${ Handlebars._escape(file.name) } - ${ fileSize }
`;
}
return swal({
title: t('Upload_file_question'),
text,
showCancelButton: true,
closeOnConfirm: false,
closeOnCancel: false,
confirmButtonText: t('Send'),
cancelButtonText: t('Cancel'),
html: true
}, function(isConfirm) {
consume();
if (isConfirm !== true) {
return;
}
const record = {
name: document.getElementById('file-name').value || file.name || file.file.name,
size: file.file.size,
type: file.file.type,
rid: roomId,
description: document.getElementById('file-description').value
};
const upload = fileUploadHandler('Uploads', record, file.file);
let uploading = Session.get('uploading') || [];
uploading.push({
id: upload.id,
name: upload.getFileName(),
percentage: 0
});
Session.set('uploading', uploading);
upload.onProgress = function(progress) {
uploading = Session.get('uploading');
const item = _.findWhere(uploading, {id: upload.id});
if (item != null) {
item.percentage = Math.round(progress * 100) || 0;
return Session.set('uploading', uploading);
}
};
upload.start(function(error, file, storage) {
if (error) {
let uploading = Session.get('uploading');
if (!Array.isArray(uploading)) {
uploading = [];
}
const item = _.findWhere(uploading, { id: this.id });
if (_.isObject(item)) {
item.error = error.error;
item.percentage = 0;
} else {
uploading.push({
error: error.error,
percentage: 0
});
}
Session.set('uploading', uploading);
return;
}
if (file) {
Meteor.call('sendFileMessage', roomId, storage, file, () => {
Meteor.setTimeout(() => {
const uploading = Session.get('uploading');
if (uploading !== null) {
const item = _.findWhere(uploading, {
id: upload.id
});
return Session.set('uploading', _.without(uploading, item));
}
}, 2000);
});
}
});
Tracker.autorun(function(c) {
const cancel = Session.get(`uploading-cancel-${ upload.id }`);
if (cancel) {
let item;
upload.stop();
c.stop();
uploading = Session.get('uploading');
if (uploading != null) {
item = _.findWhere(uploading, {id: upload.id});
if (item != null) {
item.percentage = 0;
}
Session.set('uploading', uploading);
}
return Meteor.setTimeout(function() {
uploading = Session.get('uploading');
if (uploading != null) {
item = _.findWhere(uploading, {id: upload.id});
return Session.set('uploading', _.without(uploading, item));
}
}
, 1000);
}
});
});
});
}
consume();
};