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d4efd44fb0
git-svn-id: https://zxing.googlecode.com/svn/trunk@1202 59b500cc-1b3d-0410-9834-0bbf25fbcc57
96 lines
3.1 KiB
C#
Executable file
96 lines
3.1 KiB
C#
Executable file
/*
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* Copyright 2008 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using Result = com.google.zxing.Result;
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namespace com.google.zxing.client.result.optional
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{
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/// <summary> <p>Recognizes an NDEF message that encodes information according to the
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/// "Smart Poster Record Type Definition" specification.</p>
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///
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/// <p>This actually only supports some parts of the Smart Poster format: title,
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/// URI, and action records. Icon records are not supported because the size
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/// of these records are infeasibly large for barcodes. Size and type records
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/// are not supported. Multiple titles are not supported.</p>
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///
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/// </summary>
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/// <author> Sean Owen
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/// </author>
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/// <author>www.Redivivus.in (suraj.supekar@redivivus.in) - Ported from ZXING Java Source
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/// </author>
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sealed class NDEFSmartPosterResultParser:AbstractNDEFResultParser
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{
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public static NDEFSmartPosterParsedResult parse(Result result)
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{
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sbyte[] bytes = result.RawBytes;
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if (bytes == null)
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{
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return null;
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}
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NDEFRecord headerRecord = NDEFRecord.readRecord(bytes, 0);
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// Yes, header record starts and ends a message
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if (headerRecord == null || !headerRecord.MessageBegin || !headerRecord.MessageEnd)
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{
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return null;
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}
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if (!headerRecord.Type.Equals(NDEFRecord.SMART_POSTER_WELL_KNOWN_TYPE))
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{
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return null;
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}
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int offset = 0;
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int recordNumber = 0;
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NDEFRecord ndefRecord = null;
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sbyte[] payload = headerRecord.Payload;
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int action = NDEFSmartPosterParsedResult.ACTION_UNSPECIFIED;
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System.String title = null;
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System.String uri = null;
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while (offset < payload.Length && (ndefRecord = NDEFRecord.readRecord(payload, offset)) != null)
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{
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if (recordNumber == 0 && !ndefRecord.MessageBegin)
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{
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return null;
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}
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System.String type = ndefRecord.Type;
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if (NDEFRecord.TEXT_WELL_KNOWN_TYPE.Equals(type))
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{
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System.String[] languageText = NDEFTextResultParser.decodeTextPayload(ndefRecord.Payload);
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title = languageText[1];
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}
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else if (NDEFRecord.URI_WELL_KNOWN_TYPE.Equals(type))
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{
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uri = NDEFURIResultParser.decodeURIPayload(ndefRecord.Payload);
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}
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else if (NDEFRecord.ACTION_WELL_KNOWN_TYPE.Equals(type))
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{
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action = ndefRecord.Payload[0];
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}
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recordNumber++;
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offset += ndefRecord.TotalRecordLength;
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}
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if (recordNumber == 0 || (ndefRecord != null && !ndefRecord.MessageEnd))
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{
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return null;
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}
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return new NDEFSmartPosterParsedResult(action, uri, title);
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}
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}
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} |