Redmine

          drop: handleFileDropEvent,

          paste: copyImageFromClipboard

function copyImageFromClipboard(e) {

  if (!$(e.target).hasClass('wiki-edit')) { return; }

  var clipboardData = e.clipboardData || e.originalEvent.clipboardData

  if (!clipboardData) { return; }

  var items = clipboardData.items

  for (var i = 0 ; i < items.length ; i++) {

    var item = items[i];

    if (item.type.indexOf("image") != -1) {

      var blob = item.getAsFile();

      var date = new Date();

      var filename = 'clipboard-' + date.getTime() + '.' + blob.name.split('.').pop();

      var file = new File([blob], filename, {type: blob.type});

      var inputEl = $('input:file.filedrop').first()

      handleFileDropEvent.target = e.target;

      addFile(inputEl, file, true);

    }

  }

}