mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/MultimediaViewer
synced 2024-11-24 00:03:56 +00:00
239 lines
7.4 KiB
JavaScript
239 lines
7.4 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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/**
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* A helper class for reuse logic.
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*/
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class Utils {
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/**
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* Creates header from given options.
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*
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* @param {string} text
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* @return {jQuery}
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*/
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static createHeader( text ) {
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const $header = $( '<div>' ).addClass( 'cdx-dialog__header' );
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$( '<p>' )
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.addClass( 'cdx-dialog__header__title' )
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.text( text )
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.appendTo( $header );
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return $header;
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}
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/**
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* Creates input element with copy button from given options.
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*
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* @param {string} title
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* @param {string} placeholder
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* @return {jQuery[]} [$input, $div]
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*/
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static createInputWithCopy( title, placeholder ) {
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const $input = $( '<input>' )
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.addClass( 'cdx-text-input__input' )
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.attr( 'placeholder', placeholder );
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const $copyButton = $( '<button>' )
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.addClass( 'cdx-button cdx-button--action-default cdx-button--weight-normal cdx-button--size-medium cdx-button--framed' )
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.addClass( 'mw-mmv-pt-0 mw-mmv-pb-0' ) // override padding provided by ".oo-ui-buttonElement-framed.oo-ui-labelElement > .oo-ui-buttonElement-button, button"
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.attr( 'title', title )
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.append( $( '<span>' ).addClass( 'cdx-button__icon cdx-button__icon--copy' ).attr( 'aria-hidden', 'true' ) )
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.append( mw.msg( 'multimediaviewer-copy-button' ) )
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.on( 'click', () => {
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// navigator.clipboard() is not supported in Safari 11.1, iOS Safari 11.3-11.4
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if ( navigator.clipboard && navigator.clipboard.writeText ) {
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navigator.clipboard.writeText( $input.val() );
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mw.notify( mw.msg( 'mw-widgets-copytextlayout-copy-success' ) );
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}
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} );
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const $div = $( '<div>' )
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.addClass( 'mw-mmv-flex mw-mmv-gap-50' )
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.append(
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$( '<div>' )
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.addClass( 'cdx-text-input mw-mmv-flex-grow-1' )
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.append( $input ),
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$copyButton
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);
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return [ $input, $div ];
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}
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/**
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* Creates select menu from given options.
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*
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* @param {string[]} options
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* @param {string} def
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* @return {jQuery}
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*/
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static createSelectMenu( options, def ) {
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const $select = $( '<select>' ).addClass( 'cdx-select mw-mmv-flex-grow-1' );
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options.forEach( ( size ) => $( '<option>' )
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.attr( 'value', size )
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.data( 'name', size )
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.text( Utils.getDimensionsMessageHtml( size ) )
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.appendTo( $select )
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);
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$select.val( def );
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return $select;
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}
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/**
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* Gets a promise for the large thumbnail URL. This is needed because thumbnail URLs cannot
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* be reliably guessed, even if we know the full size of the image - most of the time replacing
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* the size in another thumbnail URL works (as long as the new size is not larger than the full
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* size), but if the file name is very long and with the larger size the URL length would
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* exceed a certain threshold, a different schema is used instead.
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*
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* @param {number} width
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*
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* @fires MultimediaViewer#mmv-request-thumbnail
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* @return {jQuery.Promise.<string>}
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*/
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static getThumbnailUrlPromise( width ) {
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return $( document ).triggerHandler( 'mmv-request-thumbnail', width ) ||
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$.Deferred().reject();
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}
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/**
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* Updates the select options based on calculated sizes.
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*
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* @private
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* @param {Object} sizes
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* @param {jQuery} options
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*/
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static updateSelectOptions( sizes, options ) {
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for ( let i = 0; i < options.length; i++ ) {
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const $option = $( options[ i ] );
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const name = $option.data( 'name' );
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if ( sizes[ name ] ) {
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$option.prop( 'disabled', false );
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// These values are later used when the item is selected
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$option.data( 'width', sizes[ name ].width );
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$option.data( 'height', sizes[ name ].height );
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$option.text( Utils.getDimensionsMessageHtml( name, sizes[ name ].width, sizes[ name ].height ) );
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} else {
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$option.prop( 'disabled', true );
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$option.text( Utils.getDimensionsMessageHtml( name, undefined, undefined ) );
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}
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}
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}
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/**
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* @typedef {Object} Dimensions
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* @memberof Utils
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* @property {number} width
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* @property {number} height
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*/
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/**
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* @typedef {Object} ImageSizes
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* @memberof Utils
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* @property {Utils.Dimensions} small
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* @property {Utils.Dimensions} medium
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* @property {Utils.Dimensions} large
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* @property {Utils.Dimensions} [xl] Only present in HTML
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* @property {Utils.Dimensions} [original] Only present in HTML
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*/
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/**
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* Calculates possible image sizes for html snippets. It returns up to
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* three possible snippet frame sizes (small, medium, large) plus the
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* original image size.
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*
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* @param {number} width
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* @param {number} height
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* @return {Utils.ImageSizes}
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*/
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static getPossibleImageSizesForHtml( width, height ) {
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const buckets = {
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small: { width: 640, height: 480 },
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medium: { width: 1280, height: 720 }, // HD ready = 720p
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large: { width: 1920, height: 1080 }, // Full HD = 1080p
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xl: { width: 3840, height: 2160 } // 4K = 2160p
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};
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const sizes = {};
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const bucketNames = Object.keys( buckets );
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const widthToHeight = height / width;
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const heightToWidth = width / height;
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for ( let i = 0; i < bucketNames.length; i++ ) {
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const bucketName = bucketNames[ i ];
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const dimensions = buckets[ bucketName ];
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const bucketWidth = dimensions.width;
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const bucketHeight = dimensions.height;
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if ( width > bucketWidth ) {
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// Width fits in the current bucket
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const currentGuess = bucketWidth;
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if ( currentGuess * widthToHeight > bucketHeight ) {
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// Constrain in height, resize width accordingly
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sizes[ bucketName ] = {
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width: Math.round( bucketHeight * heightToWidth ),
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height: bucketHeight
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};
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} else {
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sizes[ bucketName ] = {
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width: currentGuess,
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height: Math.round( currentGuess * widthToHeight )
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};
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}
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} else if ( height > bucketHeight ) {
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// Height fits in the current bucket, resize width accordingly
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sizes[ bucketName ] = {
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width: Math.round( bucketHeight * heightToWidth ),
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height: bucketHeight
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};
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}
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}
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sizes.original = { width: width, height: height };
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return sizes;
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}
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/**
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* Generates an i18n message for a label, given a size label and image dimensions
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*
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* @param {string} sizeLabel
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* @param {number} width
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* @param {number} height
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* @return {string} i18n label html
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*/
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static getDimensionsMessageHtml( sizeLabel, width, height ) {
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const dimensions = !width || !height ? '' : mw.msg(
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'multimediaviewer-embed-dimensions-separated',
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mw.msg( 'multimediaviewer-embed-dimensions',
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width, height ) );
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// The following messages are used here:
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return mw.msg(
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// The following messages are used here:
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// * multimediaviewer-default-embed-dimensions
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// * multimediaviewer-original-embed-dimensions
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// * multimediaviewer-xl-embed-dimensions
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// * multimediaviewer-large-embed-dimensions
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// * multimediaviewer-medium-embed-dimensions
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// * multimediaviewer-small-embed-dimensions
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`multimediaviewer-${ sizeLabel }-embed-dimensions`,
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dimensions
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);
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}
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}
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module.exports = Utils;
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