blueimp-load-image/js/load-image-iptc-map.js

JavaScript Load Image is a library to load images provided as File or Blob objects or via URL. It returns an optionally scaled, cropped or rotated HTML img or canvas element. It also provides methods to parse image metadata to extract IPTC and Exif tags a

/*
 * JavaScript Load Image IPTC Map
 * https://github.com/blueimp/JavaScript-Load-Image
 *
 * Copyright 2013, Sebastian Tschan
 * Copyright 2018, Dave Bevan
 *
 * IPTC tags mapping based on
 * https://iptc.org/standards/photo-metadata
 * https://exiftool.org/TagNames/IPTC.html
 *
 * Licensed under the MIT license:
 * https://opensource.org/licenses/MIT
 */

/* global define, module, require */

;(function (factory) {
  'use strict'
  if (typeof define === 'function' && define.amd) {
    // Register as an anonymous AMD module:
    define(['./load-image', './load-image-iptc'], factory)
  } else if (typeof module === 'object' && module.exports) {
    factory(require('./load-image'), require('./load-image-iptc'))
  } else {
    // Browser globals:
    factory(window.loadImage)
  }
})(function (loadImage) {
  'use strict'

  var IptcMapProto = loadImage.IptcMap.prototype

  IptcMapProto.tags = {
    0: 'ApplicationRecordVersion',
    3: 'ObjectTypeReference',
    4: 'ObjectAttributeReference',
    5: 'ObjectName',
    7: 'EditStatus',
    8: 'EditorialUpdate',
    10: 'Urgency',
    12: 'SubjectReference',
    15: 'Category',
    20: 'SupplementalCategories',
    22: 'FixtureIdentifier',
    25: 'Keywords',
    26: 'ContentLocationCode',
    27: 'ContentLocationName',
    30: 'ReleaseDate',
    35: 'ReleaseTime',
    37: 'ExpirationDate',
    38: 'ExpirationTime',
    40: 'SpecialInstructions',
    42: 'ActionAdvised',
    45: 'ReferenceService',
    47: 'ReferenceDate',
    50: 'ReferenceNumber',
    55: 'DateCreated',
    60: 'TimeCreated',
    62: 'DigitalCreationDate',
    63: 'DigitalCreationTime',
    65: 'OriginatingProgram',
    70: 'ProgramVersion',
    75: 'ObjectCycle',
    80: 'Byline',
    85: 'BylineTitle',
    90: 'City',
    92: 'Sublocation',
    95: 'State',
    100: 'CountryCode',
    101: 'Country',
    103: 'OriginalTransmissionReference',
    105: 'Headline',
    110: 'Credit',
    115: 'Source',
    116: 'CopyrightNotice',
    118: 'Contact',
    120: 'Caption',
    121: 'LocalCaption',
    122: 'Writer',
    125: 'RasterizedCaption',
    130: 'ImageType',
    131: 'ImageOrientation',
    135: 'LanguageIdentifier',
    150: 'AudioType',
    151: 'AudioSamplingRate',
    152: 'AudioSamplingResolution',
    153: 'AudioDuration',
    154: 'AudioOutcue',
    184: 'JobID',
    185: 'MasterDocumentID',
    186: 'ShortDocumentID',
    187: 'UniqueDocumentID',
    188: 'OwnerID',
    200: 'ObjectPreviewFileFormat',
    201: 'ObjectPreviewFileVersion',
    202: 'ObjectPreviewData',
    221: 'Prefs',
    225: 'ClassifyState',
    228: 'SimilarityIndex',
    230: 'DocumentNotes',
    231: 'DocumentHistory',
    232: 'ExifCameraInfo',
    255: 'CatalogSets'
  }

  IptcMapProto.stringValues = {
    10: {
      0: '0 (reserved)',
      1: '1 (most urgent)',
      2: '2',
      3: '3',
      4: '4',
      5: '5 (normal urgency)',
      6: '6',
      7: '7',
      8: '8 (least urgent)',
      9: '9 (user-defined priority)'
    },
    75: {
      a: 'Morning',
      b: 'Both Morning and Evening',
      p: 'Evening'
    },
    131: {
      L: 'Landscape',
      P: 'Portrait',
      S: 'Square'
    }
  }

  IptcMapProto.getText = function (id) {
    var value = this.get(id)
    var tagCode = this.map[id]
    var stringValue = this.stringValues[tagCode]
    if (stringValue) return stringValue[value]
    return String(value)
  }

  IptcMapProto.getAll = function () {
    var map = {}
    var prop
    var name
    for (prop in this) {
      if (Object.prototype.hasOwnProperty.call(this, prop)) {
        name = this.tags[prop]
        if (name) map[name] = this.getText(name)
      }
    }
    return map
  }

  IptcMapProto.getName = function (tagCode) {
    return this.tags[tagCode]
  }

  // Extend the map of tag names to tag codes:
  ;(function () {
    var tags = IptcMapProto.tags
    var map = IptcMapProto.map || {}
    var prop
    // Map the tag names to tags:
    for (prop in tags) {
      if (Object.prototype.hasOwnProperty.call(tags, prop)) {
        map[tags[prop]] = Number(prop)
      }
    }
  })()
})