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