manifesto.js
Version:
IIIF Presentation API utility library for client and server
215 lines • 8.74 kB
JavaScript
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
var internal_1 = require("./internal");
var Canvas = /** @class */ (function (_super) {
__extends(Canvas, _super);
function Canvas(jsonld, options) {
return _super.call(this, jsonld, options) || this;
}
// http://iiif.io/api/image/2.1/#canonical-uri-syntax
Canvas.prototype.getCanonicalImageUri = function (w) {
var id = null;
var region = "full";
var rotation = 0;
var quality = "default";
var width = w;
var size;
// if an info.json has been loaded
if (this.externalResource &&
this.externalResource.data &&
this.externalResource.data["@id"]) {
id = this.externalResource.data["@id"];
if (!width) {
width = this.externalResource.data.width;
}
if (this.externalResource.data["@context"]) {
if (this.externalResource.data["@context"].indexOf("/1.0/context.json") >
-1 ||
this.externalResource.data["@context"].indexOf("/1.1/context.json") >
-1 ||
this.externalResource.data["@context"].indexOf("/1/context.json") > -1) {
quality = "native";
}
}
}
else {
// info.json hasn't been loaded yet
var images = this.getImages();
if (images && images.length) {
var firstImage = images[0];
var resource = firstImage.getResource();
var services = resource.getServices();
if (!width) {
width = resource.getWidth();
}
if (services.length) {
var service = services[0];
id = service.id;
quality = internal_1.Utils.getImageQuality(service.getProfile());
}
else if (width === resource.getWidth()) {
// if the passed width is the same as the resource width
// i.e. not looking for a thumbnail
// return the full size image.
// used for download options when loading static images.
return resource.id;
}
}
// todo: should this be moved to getThumbUri?
if (!id) {
var thumbnail = this.getProperty("thumbnail");
if (thumbnail) {
if (typeof thumbnail === "string") {
return thumbnail;
}
else {
if (thumbnail["@id"]) {
return thumbnail["@id"];
}
else if (thumbnail.length) {
return thumbnail[0].id;
}
}
}
}
}
size = width + ",";
// trim off trailing '/'
if (id && id.endsWith("/")) {
id = id.substr(0, id.length - 1);
}
var uri = [id, region, size, rotation, quality + ".jpg"].join("/");
return uri;
};
Canvas.prototype.getMaxDimensions = function () {
var maxDimensions = null;
var profile;
if (this.externalResource &&
this.externalResource.data &&
this.externalResource.data.profile) {
profile = this.externalResource.data.profile;
if (Array.isArray(profile)) {
profile = profile.filter(function (p) { return p["maxWidth" || "maxwidth"]; })[0];
if (profile) {
maxDimensions = new internal_1.Size(profile.maxWidth, profile.maxHeight ? profile.maxHeight : profile.maxWidth);
}
}
}
return maxDimensions;
};
// Presentation API 3.0
Canvas.prototype.getContent = function () {
var content = [];
var items = this.__jsonld.items || this.__jsonld.content;
if (!items)
return content;
// should be contained in an AnnotationPage
var annotationPage = null;
if (items.length) {
annotationPage = new internal_1.AnnotationPage(items[0], this.options);
}
if (!annotationPage) {
return content;
}
var annotations = annotationPage.getItems();
for (var i = 0; i < annotations.length; i++) {
var a = annotations[i];
var annotation = new internal_1.Annotation(a, this.options);
content.push(annotation);
}
return content;
};
Canvas.prototype.getDuration = function () {
return this.getProperty("duration");
};
Canvas.prototype.getImages = function () {
var images = [];
if (!this.__jsonld.images)
return images;
for (var i = 0; i < this.__jsonld.images.length; i++) {
var a = this.__jsonld.images[i];
var annotation = new internal_1.Annotation(a, this.options);
images.push(annotation);
}
return images;
};
Canvas.prototype.getIndex = function () {
return this.getProperty("index");
};
Canvas.prototype.getOtherContent = function () {
var _this = this;
var otherContent = Array.isArray(this.getProperty("otherContent"))
? this.getProperty("otherContent")
: [this.getProperty("otherContent")];
var canonicalComparison = function (typeA, typeB) {
if (typeof typeA !== "string" || typeof typeB !== "string") {
return false;
}
return typeA.toLowerCase() === typeA.toLowerCase();
};
var otherPromises = otherContent
.filter(function (otherContent) {
return otherContent &&
canonicalComparison(otherContent["@type"], "sc:AnnotationList");
})
.map(function (annotationList, i) {
return new internal_1.AnnotationList(annotationList["label"] || "Annotation list " + i, annotationList, _this.options);
})
.map(function (annotationList) { return annotationList.load(); });
return Promise.all(otherPromises);
};
// Prefer thumbnail service to image service if supplied and if
// the thumbnail service can provide a satisfactory size +/- x pixels.
// this is used to get thumb URIs *before* the info.json has been requested
// and populate thumbnails in a viewer.
// the publisher may also provide pre-computed fixed-size thumbs for better performance.
//getThumbUri(width: number): string {
//
// var uri;
// var images: IAnnotation[] = this.getImages();
//
// if (images && images.length) {
// var firstImage = images[0];
// var resource: IResource = firstImage.getResource();
// var services: IService[] = resource.getServices();
//
// for (let i = 0; i < services.length; i++) {
// var service: IService = services[i];
// var id = service.id;
//
// if (!_endsWith(id, '/')) {
// id += '/';
// }
//
// uri = id + 'full/' + width + ',/0/' + Utils.getImageQuality(service.getProfile()) + '.jpg';
// }
// }
//
// return uri;
//}
//getType(): CanvasType {
// return new CanvasType(this.getProperty('@type').toLowerCase());
//}
Canvas.prototype.getWidth = function () {
return this.getProperty("width");
};
Canvas.prototype.getHeight = function () {
return this.getProperty("height");
};
return Canvas;
}(internal_1.Resource));
exports.Canvas = Canvas;
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