github.com/boki/go-xmp@v1.0.1/models/dc/types.go (about)

     1  // Copyright (c) 2017-2018 Alexander Eichhorn
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License"): you may
     4  // not use this file except in compliance with the License. You may obtain
     5  // a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
    11  // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
    12  // License for the specific language governing permissions and limitations
    13  // under the License.
    14  
    15  // Package dc implements Dublin Core metadata as defined in XMP Specification Part 1.
    16  package dc
    17  
    18  import (
    19  	"trimmer.io/go-xmp/xmp"
    20  )
    21  
    22  type DataType string
    23  
    24  const (
    25  	DataTypeCollection  DataType = "Collection"           // Collection
    26  	DataTypeDataset     DataType = "Dataset"              // Dataset
    27  	DataTypeEvent       DataType = "Event"                // Event
    28  	DataTypeImage       DataType = "Image"                // Image
    29  	DataTypeInteractive DataType = "Interactive Resource" // Interactive Resource
    30  	DataTypeMoving      DataType = "Moving"               // Moving Image
    31  	DataTypePhysical    DataType = "Physical Object"      // Physical Object
    32  	DataTypeService     DataType = "Service"              // Service
    33  	DataTypeSoftware    DataType = "Software"             // Software
    34  	DataTypeSound       DataType = "Sound"                // Sound
    35  	DataTypeStillImage  DataType = "Still Image"          // Still Image
    36  	DataTypeText        DataType = "Text"                 // Text
    37  )
    38  
    39  // Locale
    40  type LocaleArray []string
    41  
    42  func (x LocaleArray) Default() string {
    43  	if len(x) == 0 {
    44  		return ""
    45  	}
    46  	return x[0]
    47  }
    48  
    49  func (x LocaleArray) Typ() xmp.ArrayType {
    50  	return xmp.ArrayTypeUnordered
    51  }
    52  
    53  func (x LocaleArray) MarshalXMP(e *xmp.Encoder, node *xmp.Node, m xmp.Model) error {
    54  	return xmp.MarshalArray(e, node, x.Typ(), x)
    55  }
    56  
    57  func (x *LocaleArray) UnmarshalXMP(d *xmp.Decoder, node *xmp.Node, m xmp.Model) error {
    58  	if len(node.Nodes) == 0 && len(node.Value) > 0 {
    59  		*x = append(*x, node.Value)
    60  		return nil
    61  	}
    62  	return xmp.UnmarshalArray(d, node, x.Typ(), x)
    63  }