mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/MultimediaViewer
synced 2024-11-30 19:04:19 +00:00
339 lines
9.7 KiB
JavaScript
339 lines
9.7 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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const { EmbedFileFormatter, Utils } = require( 'mmv.ui.ondemandshareddependencies' );
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const { UiElement } = require( 'mmv' );
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( function () {
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/**
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* UI component that provides the user html/wikitext snippets needed to share
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* and/or embed a media asset.
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*/
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class Embed extends UiElement {
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/**
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* @param {jQuery} $container
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*/
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constructor( $container ) {
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super( $container );
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/**
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* Formatter converting image data into formats needed for output
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*
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* @property {EmbedFileFormatter}
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*/
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this.formatter = new EmbedFileFormatter();
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Utils.createHeader( mw.message( 'multimediaviewer-embed-tab' ).text() )
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.appendTo( $container );
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const $body = $( '<div>' )
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.addClass( 'cdx-dialog__body mw-mmv-pt-0 mw-mmv-pb-150' )
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.appendTo( $container );
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this.createSnippetSelectionButtons( $body );
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this.createSizePulldownMenus( $body );
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this.createSnippetTextAreas( $body );
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}
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/**
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* Creates text areas for html and wikitext snippets.
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*
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* @param {jQuery} $container
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*/
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createSnippetTextAreas( $container ) {
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[ this.$embedTextHtml, this.$embedTextHtmlDiv ] = Utils.createInputWithCopy(
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mw.message( 'multimediaviewer-reuse-copy-embed' ).text(),
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mw.message( 'multimediaviewer-reuse-loading-placeholder' ).text()
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);
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this.$embedTextHtml.attr( 'title', mw.message( 'multimediaviewer-embed-explanation' ).text() );
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[ this.$embedTextWikitext, this.$embedTextWikitextDiv ] = Utils.createInputWithCopy(
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mw.message( 'multimediaviewer-reuse-copy-embed' ).text(),
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mw.message( 'multimediaviewer-reuse-loading-placeholder' ).text()
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);
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this.$embedTextWikitext.attr( 'title', mw.message( 'multimediaviewer-embed-explanation' ).text() );
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$container.append(
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this.$embedTextHtmlDiv,
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this.$embedTextWikitextDiv
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);
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}
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/**
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* Creates snippet selection buttons.
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*
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* @param {jQuery} $container
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*/
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createSnippetSelectionButtons( $container ) {
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const $embedSwitch = $( '<div>' ).addClass( 'cdx-tabs mw-mmv-mb-75' ).appendTo( $container );
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const $embedSwitchHeader = $( '<div>' ).addClass( 'cdx-tabs__header' ).appendTo( $embedSwitch );
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this.$embedSwitchList = $( '<div>' ).addClass( 'cdx-tabs__list' ).attr( 'role', 'tablist' ).appendTo( $embedSwitchHeader );
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[ 'wikitext', 'html' ].forEach( ( name ) => $( '<button>' )
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.addClass( 'cdx-tabs__list__item' )
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.attr( 'role', 'tab' )
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.data( 'name', name )
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.text( mw.message( name === 'wikitext' ? 'multimediaviewer-embed-wt' : 'multimediaviewer-embed-html' ).text() )
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.on( 'click', () => this.handleTypeSwitch( name ) )
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.appendTo( this.$embedSwitchList )
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);
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}
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/**
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* Creates pulldown menus to select file sizes.
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*
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* @param {jQuery} $container
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*/
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createSizePulldownMenus( $container ) {
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// Wikitext sizes pulldown menu
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this.$embedSizeSwitchWikitext = Utils.createSelectMenu(
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[ 'default', 'small', 'medium', 'large' ],
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'default'
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);
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// Html sizes pulldown menu
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this.$embedSizeSwitchHtml = Utils.createSelectMenu(
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[ 'small', 'medium', 'large', 'original' ],
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'original'
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);
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$( '<div>' ).addClass( 'mw-mmv-flex mw-mmv-mb-75' ).append(
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this.$embedSizeSwitchHtml,
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this.$embedSizeSwitchWikitext
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).appendTo( $container );
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}
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/**
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* Registers listeners.
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*/
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attach() {
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// Logged-out defaults to 'html', logged-in to 'wikitext'
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this.handleTypeSwitch( mw.user.isAnon() ? 'html' : 'wikitext' );
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// Register handlers for switching between file sizes
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this.$embedSizeSwitchHtml.on( 'change', () => this.handleSizeSwitch() );
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this.$embedSizeSwitchWikitext.on( 'change', () => this.handleSizeSwitch() );
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}
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/**
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* Clears listeners.
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*/
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unattach() {
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super.unattach();
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this.$embedSizeSwitchHtml.off( 'change' );
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this.$embedSizeSwitchWikitext.off( 'change' );
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}
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/**
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* Handles size menu change events.
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*/
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handleSizeSwitch() {
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// eslint-disable-next-line no-jquery/no-sizzle
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const $html = this.$embedSizeSwitchHtml.find( ':selected' );
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if ( $html.length ) {
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this.updateEmbedHtml( {}, $html.data( 'width' ), $html.data( 'height' ) );
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}
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// eslint-disable-next-line no-jquery/no-sizzle
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const $wikitext = this.$embedSizeSwitchWikitext.find( ':selected' );
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if ( $wikitext.length ) {
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this.updateEmbedWikitext( $wikitext.data( 'width' ) );
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}
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}
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/**
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* Handles snippet type switch.
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*
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* @param {string} value 'html' or 'wikitext'
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*/
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handleTypeSwitch( value ) {
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this.$embedSwitchList.children().each( ( _i, element ) => {
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const $element = $( element );
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$element.attr( 'aria-selected', $element.data( 'name' ) === value );
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} );
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this.$embedTextHtmlDiv.toggle( value === 'html' );
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this.$embedSizeSwitchHtml.toggle( value === 'html' );
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this.$embedTextWikitextDiv.toggle( value === 'wikitext' );
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this.$embedSizeSwitchWikitext.toggle( value === 'wikitext' );
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}
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/**
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* Reset current menu selection to default item.
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*/
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resetCurrentSizeMenuToDefault() {
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this.$embedSizeSwitchWikitext.val( 'default' );
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this.$embedSizeSwitchHtml.val( 'original' );
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this.handleSizeSwitch();
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}
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/**
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* Sets the HTML embed text.
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*
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* Assumes that the set() method has already been called to update this.embedFileInfo
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*
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* @param {Thumbnail} thumbnail (can be just an empty object)
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* @param {number} width New width to set
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* @param {number} height New height to set
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*/
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updateEmbedHtml( thumbnail, width, height ) {
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if ( !this.embedFileInfo ) {
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return;
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}
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let src = thumbnail.url || this.embedFileInfo.imageInfo.url;
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// If the image dimension requested are "large", use the current image url
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if ( width > Embed.LARGE_IMAGE_WIDTH_THRESHOLD || height > Embed.LARGE_IMAGE_HEIGHT_THRESHOLD ) {
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src = this.embedFileInfo.imageInfo.url;
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}
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this.$embedTextHtml.val(
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this.formatter.getThumbnailHtml( this.embedFileInfo, src, width, height )
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);
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}
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/**
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* Updates the wikitext embed text with a new value for width.
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*
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* Assumes that the set method has already been called.
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*
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* @param {number} width
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*/
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updateEmbedWikitext( width ) {
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if ( !this.embedFileInfo ) {
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return;
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}
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this.$embedTextWikitext.val(
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this.formatter.getThumbnailWikitextFromEmbedFileInfo( this.embedFileInfo, width )
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);
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}
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/**
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* Gets size options for html and wikitext snippets.
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*
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* @param {number} width
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* @param {number} height
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* @return {Object}
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* @return {Object} return.html Collection of possible image sizes for html snippets
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* @return {Object} return.wikitext Collection of possible image sizes for wikitext snippets
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*/
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getSizeOptions( width, height ) {
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const sizes = {};
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sizes.html = Utils.getPossibleImageSizesForHtml( width, height );
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sizes.wikitext = this.getPossibleImageSizesForWikitext( width, height );
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return sizes;
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}
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/**
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* Sets the data on the element.
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*
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* @param {Image} image
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* @param {Repo} repo
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* @param {string} [caption]
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* @param {string} [alt]
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*/
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set( image, repo, caption, alt ) {
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const sizes = this.getSizeOptions( image.width, image.height );
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this.embedFileInfo = { imageInfo: image, repoInfo: repo };
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if ( caption ) {
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this.embedFileInfo.caption = caption;
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}
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if ( alt ) {
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this.embedFileInfo.alt = alt;
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}
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Utils.updateSelectOptions( sizes.html, this.$embedSizeSwitchHtml.children() );
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Utils.updateSelectOptions( sizes.wikitext, this.$embedSizeSwitchWikitext.children() );
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// Reset defaults
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this.resetCurrentSizeMenuToDefault();
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Utils.getThumbnailUrlPromise( this.LARGE_IMAGE_WIDTH_THRESHOLD )
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.done( ( thumbnail ) => {
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this.updateEmbedHtml( thumbnail );
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} );
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}
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/**
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* @inheritdoc
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*/
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empty() {
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this.$embedTextHtml.val( '' );
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this.$embedTextWikitext.val( '' );
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this.$embedSizeSwitchHtml.toggle( false );
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this.$embedSizeSwitchWikitext.toggle( false );
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}
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/**
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* Calculates possible image sizes for wikitext snippets. It returns up to
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* three possible snippet frame sizes (small, medium, large).
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*
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* @param {number} width
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* @param {number} height
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* @return {Object}
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* @return {Object} return.small
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* @return {Object} return.medium
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* @return {Object} return.large
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*/
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getPossibleImageSizesForWikitext( width, height ) {
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const buckets = {
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small: 300,
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medium: 400,
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large: 500
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};
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const sizes = {};
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const widthToHeight = height / width;
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for ( const bucketName in buckets ) {
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const bucketWidth = buckets[ bucketName ];
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if ( width > bucketWidth ) {
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sizes[ bucketName ] = {
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width: bucketWidth,
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height: Math.round( bucketWidth * widthToHeight )
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};
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}
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}
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sizes.default = { width: null, height: null };
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return sizes;
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}
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}
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/**
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* @property {number} Width threshold at which an image is to be considered "large"
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* @static
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*/
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Embed.LARGE_IMAGE_WIDTH_THRESHOLD = 1200;
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/**
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* @property {number} Height threshold at which an image is to be considered "large"
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* @static
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*/
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Embed.LARGE_IMAGE_HEIGHT_THRESHOLD = 900;
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module.exports = Embed;
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}() );
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