b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
75 lines
2 KiB
JavaScript
75 lines
2 KiB
JavaScript
'use strict';
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(function(exports) {
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var URI = ['', 'http://www.', 'https://www.', 'http://', 'https://', 'tel:',
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'mailto:', 'ftp://anonymous:anonymous@', 'ftp://ftp.', 'ftps://', 'sftp://',
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'smb://', 'nfs://', 'ftp://', 'dav://', 'news:', 'telnet://', 'imap:',
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'rtsp://', 'urn:', 'pop:', 'sip:', 'sips:', 'tftp:', 'btspp://',
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'btl2cap://', 'btgoep://', 'tcpobex://', 'irdaobex://', 'file://',
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'urn:epc:id:', 'urn:epc:tag:', 'urn:epc:pat:', 'urn:epc:raw:', 'urn:epc:',
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'urn:nfc:'];
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function NDEFHelper() { }
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NDEFHelper.prototype = {
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/**
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* Create MozNDEFRecord whose content is the uri.
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*/
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createURI: function nh_createURI(uri) {
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var id = 0;
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// start with 1 since index 0 is ''.
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for (var i = 1; i < URI.length; i++) {
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if (uri.startsWith(URI[i])) {
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id = i;
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}
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}
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uri = String.fromCharCode(id) + uri.substring(URI[id].length);
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var enc = new TextEncoder('utf-8');
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return new MozNDEFRecord({tnf: 'well-known',
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type: enc.encode('U'),
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payload: enc.encode(uri)});
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},
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parseURI: function nh_parseURI(ndef) {
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if (!ndef || ndef.tnf != 'well-known' || ndef.type[0] != 0x55) {
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return null;
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}
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var payload = ndef.payload;
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var prefix = URI[payload[0]];
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if (!prefix) {
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return null;
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}
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var dec = new TextDecoder('utf-8');
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return prefix + dec.decode(payload.subarray(1));
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},
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/**
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* Utils to dump Uint8Array.
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*/
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dumpUint8Array: function nh_dumpUint8Array(array) {
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if (!array) {
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return 'null';
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}
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var str = '[';
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var i;
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var arrayLen = array ? array.length : 0;
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for (i = 0; i < arrayLen; i++) {
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str += '0x' + array[i].toString(16);
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if (i != array.length - 1) {
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str += ', ';
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}
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}
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return str + ']';
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}
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};
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exports.NDEFHelper = NDEFHelper;
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})(window);
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