onBeforeUpload Gate

Return false from onBeforeUpload to skip uploading a specific task.

(function() {
 var logEl = document.getElementById('log');
 function log(m) { var d = document.createElement('div'); d.className='pkg-log-entry'; d.textContent=m; logEl.appendChild(d); logEl.scrollTop=logEl.scrollHeight; }
 new MultipleUpload('#demo', {
 uploadUrl: '/api/upload',
 multiple: true,
 onBeforeUpload: function(task) {
 if (task.fileSize > 2 * 1024 * 1024) {
 log('BLOCKED: ' + task.fileName + ' is over 2MB, skipping upload');
 return false;
 }
 log('Uploading: ' + task.fileName);
 }
 });
})();