mediawiki-extensions-MultimediaViewer/resources/mmv/ui/mmv.ui.stripeButtons.js

/*
 * This file is part of the MediaWiki extension MediaViewer.
 *
 * MediaViewer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * MediaViewer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with MediaViewer.  If not, see <http://www.gnu.org/licenses/>.
 */

const UiElement = require( './mmv.ui.js' );

/**
 * Class for buttons which are placed on the metadata stripe (the always visible part of the
 * metadata panel).
 */
class StripeButtons extends UiElement {
	/**
	 * @param {jQuery} $container the title block (.mw-mmv-title-contain) which wraps the buttons and all
	 *  other title elements
	 */
	constructor( $container ) {
		super( $container );

		this.$buttonContainer = $( '<div>' )
			.addClass( 'mw-mmv-stripe-button-container' )
			.appendTo( $container );

		/**
		 * This holds the actual buttons.
		 *
		 * @property {Object.<string, jQuery>}
		 */
		this.buttons = {};

		this.initDescriptionPageButton();
	}

	/**
	 * Creates a button linking to the file description page.
	 *
	 * @protected
	 */
	initDescriptionPageButton() {
		this.buttons.$descriptionPage = $( '<a>' )
			.addClass( 'mw-mmv-stripe-button empty mw-mmv-description-page-button cdx-button cdx-button--weight-primary cdx-button--action-progressive cdx-button--size-large cdx-button--fake-button cdx-button--fake-button--enabled' )
			// elements are right-floated so we use prepend instead of append to keep the order
			.prependTo( this.$buttonContainer );
	}

	/**
	 * Runs code for each button, similarly to $.each.
	 *
	 * @protected
	 * @param {function(jQuery, string)} callback a function that will be called with each button
	 */
	eachButton( callback ) {
		for ( const buttonName in this.buttons ) {
			callback( this.buttons[ buttonName ], buttonName );
		}
	}

	/**
	 * @inheritdoc
	 * @param {Image} imageInfo
	 * @param {Repo} repoInfo
	 */
	set( imageInfo, repoInfo ) {
		this.eachButton( ( $button ) => {
			$button.removeClass( 'empty' );
		} );

		this.setDescriptionPageButton( imageInfo, repoInfo );
	}

	/**
	 * Updates the button linking to the file page.
	 *
	 * @protected
	 * @param {Image} imageInfo
	 * @param {Repo} repoInfo
	 */
	setDescriptionPageButton( imageInfo, repoInfo ) {
		const $button = this.buttons.$descriptionPage;
		let isCommons = repoInfo.isCommons();
		let descriptionUrl = imageInfo.descriptionUrl;

		if ( repoInfo.isLocal === false && imageInfo.pageID ) {
			// The file has a local description page, override the description URL
			descriptionUrl = imageInfo.title.getUrl();
			isCommons = false;
		}

		$button.empty()
			.append( $( '<span>' ).addClass( 'cdx-button__icon' ) )
			.append( mw.message( 'multimediaviewer-repository-local' ).text() )
			.attr( 'href', descriptionUrl );

		$button.toggleClass( 'mw-mmv-repo-button-commons', isCommons );
	}

	/**
	 * @inheritdoc
	 */
	empty() {
		this.eachButton( ( $button ) => {
			$button.addClass( 'empty' );
		} );

		this.buttons.$descriptionPage.attr( { href: null, title: null, 'original-title': null } )
			.removeClass( 'mw-mmv-repo-button-commons' );
	}
}

module.exports = StripeButtons;