fontconverter/filereader.js
function setupClipboard(element, opts) {

        if (!FileReaderJS.enabled) {
            return;
        }
        var instanceOptions = extend(extend({}, FileReaderJS.opts), opts);

        element.addEventListener("paste", onpaste, false);

        function onpaste(e) {
            var files = [];
            var clipboardData = e.clipboardData || {};
            var items = clipboardData.items || [];

            for (var i = 0; i < items.length; i++) {
                var file = items[i].getAsFile();

                if (file) {

                    // Create a fake file name for images from clipboard, since this data doesn't get sent
                    var matches = new RegExp("/\(.*\)").exec(file.type);
                    if (!file.name && matches) {
                        var extension = matches[1];
                        file.name = "clipboard" + i + "." + extension;
                    }

                    files.push(file);
                }
            }

            if (files.length) {
                processFileList(e, files, instanceOptions);
                e.preventDefault();
                e.stopPropagation();
            }
        }
    }
function setupClipboard(element, opts) {

        if (!FileReaderJS.enabled) {
            return;
        }
        var instanceOptions = extend(extend({}, FileReaderJS.opts), opts);

        element.addEventListener("paste", onpaste, false);

        function onpaste(e) {
            var files = [];
            var clipboardData = e.clipboardData || {};
            var items = clipboardData.items || [];

            for (var i = 0; i < items.length; i++) {
                var file = items[i].getAsFile();

                if (file) {

                    // Create a fake file name for images from clipboard, since this data doesn't get sent
                    var matches = new RegExp("/\(.*\)").exec(file.type);
                    if (!file.name && matches) {
                        var extension = matches[1];
                        file.name = "clipboard" + i + "." + extension;
                    }

                    files.push(file);
                }
            }

            if (files.length) {
                processFileList(e, files, instanceOptions);
                e.preventDefault();
                e.stopPropagation();
            }
        }
    }
setupClipboard: bind to clipboard events (intended for document.body)