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Prepare IIIFInfo for JSON-LD context extensions

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IIIF Image API 3 allows context extensions that should be added to the
info.json's @context property. Therefore, '@context' might be an array
instead of a string.
This commit is contained in:
Lutz Helm
2019-04-16 08:48:17 +02:00
committed by Lutz Helm
parent f68b8d8df9
commit d332b6a0f4
1 changed files with 20 additions and 15 deletions
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35
src/ol/format/IIIFInfo.js
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@@ -242,22 +242,27 @@ class IIIFInfo {
if (this.imageInfo === undefined) {
return;
}
const context = this.imageInfo['@context'] || undefined;
switch (context) {
case 'http://library.stanford.edu/iiif/image-api/1.1/context.json':
case 'http://iiif.io/api/image/1/context.json':
return Versions.VERSION1;
case 'http://iiif.io/api/image/2/context.json':
return Versions.VERSION2;
case 'http://iiif.io/api/image/3/context.json':
return Versions.VERSION3;
case undefined:
// Image API 1.0 has no '@context'
if (this.getComplianceLevelEntryFromProfile(Versions.VERSION1) && this.imageInfo.identifier) {
let context = this.imageInfo['@context'] || 'ol-no-context';
if (typeof context == 'string') {
context = [context];
}
for (let i = 0; i < context.length; i++) {
switch (context[i]) {
case 'http://library.stanford.edu/iiif/image-api/1.1/context.json':
case 'http://iiif.io/api/image/1/context.json':
return Versions.VERSION1;
}
break;
default:
case 'http://iiif.io/api/image/2/context.json':
return Versions.VERSION2;
case 'http://iiif.io/api/image/3/context.json':
return Versions.VERSION3;
case 'ol-no-context':
// Image API 1.0 has no '@context'
if (this.getComplianceLevelEntryFromProfile(Versions.VERSION1) && this.imageInfo.identifier) {
return Versions.VERSION1;
}
break;
default:
}
}
assert(false, 61);
}