mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/MultimediaViewer
synced 2024-11-17 12:53:24 +00:00
311 lines
9.9 KiB
JavaScript
311 lines
9.9 KiB
JavaScript
/*
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* This file is part of the MediaWiki extension MultimediaViewer.
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*
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* MultimediaViewer is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* MultimediaViewer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with MultimediaViewer. If not, see <http://www.gnu.org/licenses/>.
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*/
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( function ( mw ) {
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var IP;
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/**
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* Represents information about a single image
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* @class mw.mmv.model.Image
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* @constructor
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* @param {mw.Title} title
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* @param {string} name Image name (e.g. title of the artwork) or human-readable file if there is no better title
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* @param {number} size Filesize in bytes of the original image
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* @param {number} width Width of the original image
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* @param {number} height Height of the original image
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* @param {string} mimeType
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* @param {string} url URL to the image itself (original version)
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* @param {string} descriptionUrl URL to the image description page
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* @param {string} repo The repository this image belongs to
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* @param {string} lastUploader The last person to upload a version of this image.
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* @param {string} uploadDateTime The time and date the last upload occurred
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* @param {string} anonymizedUploadDateTime Anonymized and EL-friendly version of uploadDateTime
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* @param {string} creationDateTime The time and date the original upload occurred
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* @param {string} description
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* @param {string} source
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* @param {string} author
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* @param {number} authorCount
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* @param {mw.mmv.model.License} license
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* @param {string} permission
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* @param {number} latitude
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* @param {number} longitude
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*/
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function Image(
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title,
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name,
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size,
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width,
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height,
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mimeType,
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url,
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descriptionUrl,
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repo,
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lastUploader,
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uploadDateTime,
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anonymizedUploadDateTime,
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creationDateTime,
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description,
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source,
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author,
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authorCount,
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license,
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permission,
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latitude,
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longitude
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) {
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/** @property {mw.Title} title The title of the image file */
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this.title = title;
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/** @property {string} name Image name (e.g. title of the artwork) or human-readable file if there is no better title */
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this.name = name;
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/** @property {number} size The filesize, in bytes, of the original image */
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this.size = size;
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/** @property {number} width The width, in pixels, of the original image */
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this.width = width;
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/** @property {number} height The height, in pixels, of the original image */
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this.height = height;
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/** @property {string} mimeType The MIME type of the original image */
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this.mimeType = mimeType;
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/** @property {string} url The URL to the original image */
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this.url = url;
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/** @property {string} descriptionUrl The URL to the description page for the image */
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this.descriptionUrl = descriptionUrl;
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/** @property {string} repo The name of the repository where this image is stored */
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this.repo = repo;
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/** @property {string} lastUploader The person who uploaded the last version of the file */
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this.lastUploader = lastUploader;
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/** @property {string} uploadDateTime The date and time of the last upload */
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this.uploadDateTime = uploadDateTime;
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/** @property {string} anonymizedUploadDateTime The anonymized date and time of the last upload */
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this.anonymizedUploadDateTime = anonymizedUploadDateTime;
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/** @property {string} creationDateTime The date and time that the image was created */
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this.creationDateTime = creationDateTime;
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/** @property {string} description The description from the file page - unsafe HTML sometimes goes here */
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this.description = description;
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/** @property {string} source The source for the image (could be an organization, e.g.) - unsafe HTML sometimes goes here */
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this.source = source;
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/** @property {string} author The author of the image - unsafe HTML sometimes goes here */
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this.author = author;
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/** @property {number} authorCount The number of different authors of the image. This is guessed by the
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* number of templates with author fields, so might be less than the number of actual authors. */
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this.authorCount = authorCount;
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/** @property {mw.mmv.model.License} license The license under which the image is distributed */
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this.license = license;
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/** @property {string} additional license conditions by the author (note that this is usually a big ugly HTML blob) */
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this.permission = permission;
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/** @property {number} latitude The latitude of the place where the image was created */
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this.latitude = latitude;
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/** @property {number} longitude The longitude of the place where the image was created */
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this.longitude = longitude;
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/**
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* @property {Object} thumbUrls
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* An object indexed by image widths
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* with URLs to appropriately sized thumbnails
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*/
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this.thumbUrls = {};
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}
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IP = Image.prototype;
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/**
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* Constructs a new Image object out of an object containing
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* imageinfo data from an API response.
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* @static
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* @param {mw.Title} title
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* @param {Object} imageInfo
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* @returns {mw.mmv.model.Image}
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*/
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Image.newFromImageInfo = function ( title, imageInfo ) {
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var name, uploadDateTime, anonymizedUploadDateTime, creationDateTime, imageData,
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description, source, author, authorCount, license, permission,
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latitude, longitude,
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innerInfo = imageInfo.imageinfo[0],
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extmeta = innerInfo.extmetadata;
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if ( extmeta ) {
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creationDateTime = this.parseExtmeta( extmeta.DateTimeOriginal, 'plaintext' );
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uploadDateTime = this.parseExtmeta( extmeta.DateTime, 'plaintext' ).toString();
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// Convert to "timestamp" format commonly used in EventLogging
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anonymizedUploadDateTime = uploadDateTime.replace( /[^\d]/g, '' );
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// Anonymise the timestamp to avoid making the file identifiable
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// We only need to know the day
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anonymizedUploadDateTime = anonymizedUploadDateTime.substr( 0, anonymizedUploadDateTime.length - 6 ) + '000000';
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name = this.parseExtmeta( extmeta.ObjectName, 'plaintext' );
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description = this.parseExtmeta( extmeta.ImageDescription, 'string' );
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source = this.parseExtmeta( extmeta.Credit, 'string' );
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author = this.parseExtmeta( extmeta.Artist, 'string' );
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authorCount = this.parseExtmeta( extmeta.AuthorCount, 'integer' );
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license = this.newLicenseFromImageInfo( extmeta );
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permission = this.parseExtmeta( extmeta.Permission, 'string' );
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latitude = this.parseExtmeta( extmeta.GPSLatitude, 'float' );
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longitude = this.parseExtmeta( extmeta.GPSLongitude, 'float' );
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}
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if ( !name ) {
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name = title.getNameText();
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}
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imageData = new Image(
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title,
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name,
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innerInfo.size,
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innerInfo.width,
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innerInfo.height,
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innerInfo.mime,
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innerInfo.url,
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innerInfo.descriptionurl,
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imageInfo.imagerepository,
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innerInfo.user,
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uploadDateTime,
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anonymizedUploadDateTime,
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creationDateTime,
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description,
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source,
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author,
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authorCount,
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license,
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permission,
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latitude,
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longitude
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);
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if ( innerInfo.thumburl ) {
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imageData.addThumbUrl(
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innerInfo.thumbwidth,
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innerInfo.thumburl
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);
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}
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return imageData;
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};
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/**
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* Constructs a new License object out of an object containing
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* imageinfo data from an API response.
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* @static
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* @param {Object} extmeta the extmeta array of the imageinfo data
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* @returns {mw.mmv.model.License|undefined}
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*/
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Image.newLicenseFromImageInfo = function ( extmeta ) {
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var license;
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if ( extmeta.LicenseShortName ) {
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license = new mw.mmv.model.License(
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this.parseExtmeta( extmeta.LicenseShortName, 'string' ),
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this.parseExtmeta( extmeta.License, 'string' ),
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this.parseExtmeta( extmeta.UsageTerms, 'string' ),
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this.parseExtmeta( extmeta.LicenseUrl, 'string' ),
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this.parseExtmeta( extmeta.AttributionRequired, 'boolean' ),
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this.parseExtmeta( extmeta.NonFree, 'boolean' )
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);
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}
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return license;
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};
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/**
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* Reads and parses a value from the imageinfo API extmetadata field.
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* @param {Array} data
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* @param {string} type one of 'plaintext', 'string', 'float', 'boolean', 'list'
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* @return {string|number|boolean|Array} value or undefined if it is missing
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*/
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Image.parseExtmeta = function ( data, type ) {
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var value = data && data.value;
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if ( value === null || value === undefined ) {
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return undefined;
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} else if ( type === 'plaintext' ) {
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return value.toString().replace( /<.*?>/g, '' );
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} else if ( type === 'string' ) {
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return value.toString();
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} else if ( type === 'integer' ) {
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return parseInt( value, 10 );
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} else if ( type === 'float' ) {
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return parseFloat( value );
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} else if ( type === 'boolean' ) {
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value = value.toString().toLowerCase().replace( /^\s+|\s+$/g, '' );
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if ( value in { '1': null, 'yes': null, 'true': null } ) {
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return true;
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} else if ( value in { '0': null, 'no': null, 'false': null } ) {
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return false;
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} else {
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return undefined;
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}
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} else if ( type === 'list' ) {
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return value === '' ? [] : value.split( '|' );
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} else {
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throw 'mw.mmv.model.Image.parseExtmeta: unknown type';
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}
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};
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/**
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* Add a thumb URL
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* @param {number} width
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* @param {string} url
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*/
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IP.addThumbUrl = function ( width, url ) {
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this.thumbUrls[width] = url;
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};
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/**
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* Get a thumb URL if we have it.
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* @param {number} width
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* @returns {string|undefined}
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*/
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IP.getThumbUrl = function ( width ) {
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return this.thumbUrls[width];
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};
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/**
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* Check whether the image has geolocation data.
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* @returns {boolean}
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*/
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IP.hasCoords = function () {
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return this.hasOwnProperty( 'latitude' ) && this.hasOwnProperty( 'longitude' ) &&
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this.latitude !== undefined && this.latitude !== null &&
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this.longitude !== undefined && this.longitude !== null;
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};
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mw.mmv.model.Image = Image;
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}( mediaWiki ) );
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