mediawiki-extensions-Multim.../resources/mmv.ui.reuse.shareembed/mmv.ui.reuse.embed.js

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/*
* 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 <http://www.gnu.org/licenses/>.
*/
const { EmbedFileFormatter, Utils } = require( 'mmv.ui.ondemandshareddependencies' );
const Tab = require( './mmv.ui.reuse.tab.js' );
( function () {
/**
* UI component that provides the user html/wikitext snippets needed to share
* and/or embed a media asset.
*/
class Embed extends Tab {
/**
* @param {jQuery} $container
*/
constructor( $container ) {
super( $container );
/**
* Formatter converting image data into formats needed for output
*
* @property {EmbedFileFormatter}
*/
this.formatter = new EmbedFileFormatter();
/** @property {Utils} utils - */
this.utils = new Utils();
/**
* Indicates whether or not the default option has been reset for both size menus.
*
* @property {boolean}
*/
this.isSizeMenuDefaultReset = false;
this.$pane.addClass( 'mw-mmv-embed-pane' );
this.$pane.appendTo( this.$container );
this.createSnippetTextAreas( this.$pane );
this.createSnippetSelectionButtons( this.$pane );
this.createSizePulldownMenus( this.$pane );
/**
* Currently selected embed snippet.
*
* @property {mw.widgets.CopyTextLayout}
*/
this.currentMainEmbedText = mw.user.isAnon() ? this.embedTextHtml : this.embedTextWikitext;
/**
* Default item for the html size menu.
*
* @property {OO.ui.MenuOptionWidget}
*/
this.defaultHtmlItem = this.embedSizeSwitchHtml.getMenu().findSelectedItem();
/**
* Default item for the wikitext size menu.
*
* @property {OO.ui.MenuOptionWidget}
*/
this.defaultWikitextItem = this.embedSizeSwitchWikitext.getMenu().findSelectedItem();
/**
* Currently selected size menu.
*
* @property {OO.ui.MenuSelectWidget}
*/
this.currentSizeMenu = mw.user.isAnon() ? this.embedSizeSwitchHtml.getMenu() : this.embedSizeSwitchWikitext.getMenu();
/**
* Current default item.
*
* @property {OO.ui.MenuOptionWidget}
*/
this.currentDefaultItem = mw.user.isAnon() ? this.defaultHtmlItem : this.defaultWikitextItem;
}
/**
* Creates text areas for html and wikitext snippets.
*
* @param {jQuery} $container
*/
createSnippetTextAreas( $container ) {
this.embedTextHtml = new mw.widgets.CopyTextLayout( {
help: mw.message( 'multimediaviewer-embed-explanation' ).text(),
helpInline: true,
align: 'top',
multiline: true,
textInput: {
placeholder: mw.message( 'multimediaviewer-reuse-loading-placeholder' ).text(),
autosize: true,
maxRows: 5
},
button: {
title: mw.msg( 'multimediaviewer-reuse-copy-embed' )
}
} );
this.embedTextWikitext = new mw.widgets.CopyTextLayout( {
help: mw.message( 'multimediaviewer-embed-explanation' ).text(),
helpInline: true,
align: 'top',
multiline: true,
textInput: {
// The following classes are used here:
// * mw-editfont-monospace
// * mw-editfont-sans-serif
// * mw-editfont-serif
classes: [ `mw-editfont-${mw.user.options.get( 'editfont' )}` ],
placeholder: mw.message( 'multimediaviewer-reuse-loading-placeholder' ).text(),
autosize: true,
maxRows: 5
},
button: {
title: mw.msg( 'multimediaviewer-reuse-copy-embed' )
}
} );
$container.append(
this.embedTextHtml.$element,
this.embedTextWikitext.$element
);
}
/**
* Creates snippet selection buttons.
*
* @param {jQuery} $container
*/
createSnippetSelectionButtons( $container ) {
this.embedSwitch = new OO.ui.ButtonSelectWidget( {
classes: [ 'mw-mmv-embed-select' ]
} );
const wikitextButtonOption = new OO.ui.ButtonOptionWidget( {
data: 'wikitext',
label: mw.message( 'multimediaviewer-embed-wt' ).text()
} );
const htmlButtonOption = new OO.ui.ButtonOptionWidget( {
data: 'html',
label: mw.message( 'multimediaviewer-embed-html' ).text()
} );
this.embedSwitch.addItems( [
wikitextButtonOption,
htmlButtonOption
] );
$( '<p>' )
.append( this.embedSwitch.$element )
.appendTo( $container );
// Logged-out defaults to 'html', logged-in to 'wikitext'
this.embedSwitch.selectItem( mw.user.isAnon() ? htmlButtonOption : wikitextButtonOption );
}
/**
* Creates pulldown menus to select file sizes.
*
* @param {jQuery} $container
*/
createSizePulldownMenus( $container ) {
// Wikitext sizes pulldown menu
this.embedSizeSwitchWikitext = this.utils.createPulldownMenu(
[ 'default', 'small', 'medium', 'large' ],
[],
'default'
);
// Html sizes pulldown menu
this.embedSizeSwitchHtml = this.utils.createPulldownMenu(
[ 'small', 'medium', 'large', 'original' ],
[],
'original'
);
this.embedSizeSwitchHtmlLayout = new OO.ui.FieldLayout( this.embedSizeSwitchHtml, { align: 'top' } );
this.embedSizeSwitchWikitextLayout = new OO.ui.FieldLayout( this.embedSizeSwitchWikitext, { align: 'top' } );
$container.append(
this.embedSizeSwitchHtmlLayout.$element,
this.embedSizeSwitchWikitextLayout.$element
);
}
/**
* Registers listeners.
*/
attach() {
// Register handler for switching between wikitext/html snippets
this.embedSwitch.on( 'select', this.handleTypeSwitch.bind( this ) );
this.handleTypeSwitch( this.embedSwitch.findSelectedItem() );
// Register handlers for switching between file sizes
this.embedSizeSwitchHtml.getMenu().on( 'choose', this.handleSizeSwitch.bind( this ) );
this.embedSizeSwitchWikitext.getMenu().on( 'choose', this.handleSizeSwitch.bind( this ) );
}
/**
* Clears listeners.
*/
unattach() {
super.unattach();
this.embedSwitch.off( 'select' );
this.embedSizeSwitchHtml.getMenu().off( 'choose' );
this.embedSizeSwitchWikitext.getMenu().off( 'choose' );
}
/**
* Handles size menu change events.
*
* @param {OO.ui.MenuOptionWidget} item
*/
handleSizeSwitch( item ) {
const value = item.getData();
this.changeSize( value.width, value.height );
}
/**
* Handles snippet type switch.
*
* @param {OO.ui.MenuOptionWidget} item
*/
handleTypeSwitch( item ) {
const value = item.getData();
if ( value === 'html' ) {
this.currentMainEmbedText = this.embedTextHtml;
this.embedSizeSwitchWikitext.getMenu().toggle( false );
this.currentSizeMenu = this.embedSizeSwitchHtml.getMenu();
this.currentDefaultItem = this.defaultHtmlItem;
} else if ( value === 'wikitext' ) {
this.currentMainEmbedText = this.embedTextWikitext;
this.embedSizeSwitchHtml.getMenu().toggle( false );
this.currentSizeMenu = this.embedSizeSwitchWikitext.getMenu();
this.currentDefaultItem = this.defaultWikitextItem;
}
this.embedTextHtml.toggle( value === 'html' );
this.embedSizeSwitchHtmlLayout.toggle( value === 'html' );
this.embedTextWikitext.toggle( value === 'wikitext' );
this.embedSizeSwitchWikitextLayout.toggle( value === 'wikitext' );
// Reset current selection to default when switching the first time
if ( !this.isSizeMenuDefaultReset ) {
this.resetCurrentSizeMenuToDefault();
this.isSizeMenuDefaultReset = true;
}
this.select();
}
/**
* Reset current menu selection to default item.
*/
resetCurrentSizeMenuToDefault() {
this.currentSizeMenu.chooseItem( this.currentDefaultItem );
// Force select logic to update the selected item bar, otherwise we end up
// with the wrong label. This is implementation dependent and maybe it should
// be done via a to flag to OO.ui.SelectWidget.prototype.chooseItem()?
this.currentSizeMenu.emit( 'select', this.currentDefaultItem );
}
/**
* Changes the size, takes different actions based on which sort of
* embed is currently chosen.
*
* @param {number} width New width to set
* @param {number} height New height to set
*/
changeSize( width, height ) {
const currentItem = this.embedSwitch.findSelectedItem();
if ( currentItem === null ) {
return;
}
switch ( currentItem.getData() ) {
case 'html':
this.updateEmbedHtml( {}, width, height );
break;
case 'wikitext':
this.updateEmbedWikitext( width );
break;
}
this.select();
}
/**
* Sets the HTML embed text.
*
* Assumes that the set() method has already been called to update this.embedFileInfo
*
* @param {Thumbnail} thumbnail (can be just an empty object)
* @param {number} width New width to set
* @param {number} height New height to set
*/
updateEmbedHtml( thumbnail, width, height ) {
if ( !this.embedFileInfo ) {
return;
}
let src = thumbnail.url || this.embedFileInfo.imageInfo.url;
// If the image dimension requested are "large", use the current image url
if ( width > Embed.LARGE_IMAGE_WIDTH_THRESHOLD || height > Embed.LARGE_IMAGE_HEIGHT_THRESHOLD ) {
src = this.embedFileInfo.imageInfo.url;
}
this.embedTextHtml.textInput.setValue(
this.formatter.getThumbnailHtml( this.embedFileInfo, src, width, height )
);
}
/**
* Updates the wikitext embed text with a new value for width.
*
* Assumes that the set method has already been called.
*
* @param {number} width
*/
updateEmbedWikitext( width ) {
if ( !this.embedFileInfo ) {
return;
}
this.embedTextWikitext.textInput.setValue(
this.formatter.getThumbnailWikitextFromEmbedFileInfo( this.embedFileInfo, width )
);
}
/**
* Shows the pane.
*/
show() {
super.show();
// Force update size on multiline inputs, as they may have be
// calculated while not visible.
this.currentMainEmbedText.textInput.valCache = null;
this.currentMainEmbedText.textInput.adjustSize();
this.select();
}
/**
* Gets size options for html and wikitext snippets.
*
* @param {number} width
* @param {number} height
* @return {Object}
* @return {Object} return.html Collection of possible image sizes for html snippets
* @return {Object} return.wikitext Collection of possible image sizes for wikitext snippets
*/
getSizeOptions( width, height ) {
const sizes = {};
sizes.html = this.utils.getPossibleImageSizesForHtml( width, height );
sizes.wikitext = this.getPossibleImageSizesForWikitext( width, height );
return sizes;
}
/**
* Sets the data on the element.
*
* @param {Image} image
* @param {Repo} repo
* @param {string} [caption]
* @param {string} [alt]
*/
set( image, repo, caption, alt ) {
const htmlSizeSwitch = this.embedSizeSwitchHtml.getMenu();
const htmlSizeOptions = htmlSizeSwitch.getItems();
const wikitextSizeSwitch = this.embedSizeSwitchWikitext.getMenu();
const wikitextSizeOptions = wikitextSizeSwitch.getItems();
const sizes = this.getSizeOptions( image.width, image.height );
this.embedFileInfo = { imageInfo: image, repoInfo: repo };
if ( caption ) {
this.embedFileInfo.caption = caption;
}
if ( alt ) {
this.embedFileInfo.alt = alt;
}
this.utils.updateMenuOptions( sizes.html, htmlSizeOptions );
this.utils.updateMenuOptions( sizes.wikitext, wikitextSizeOptions );
// Reset defaults
this.isSizeMenuDefaultReset = false;
this.resetCurrentSizeMenuToDefault();
this.utils.getThumbnailUrlPromise( this.LARGE_IMAGE_WIDTH_THRESHOLD )
.done( ( thumbnail ) => {
this.updateEmbedHtml( thumbnail );
this.select();
} );
}
/**
* @inheritdoc
*/
empty() {
this.embedTextHtml.textInput.setValue( '' );
this.embedTextWikitext.textInput.setValue( '' );
this.embedSizeSwitchHtml.getMenu().toggle( false );
this.embedSizeSwitchWikitext.getMenu().toggle( false );
}
/**
* Selects the text in the current textbox by triggering a focus event.
*/
select() {
this.currentMainEmbedText.selectText();
}
/**
* Calculates possible image sizes for wikitext snippets. It returns up to
* three possible snippet frame sizes (small, medium, large).
*
* @param {number} width
* @param {number} height
* @return {Object}
* @return {Object} return.small
* @return {Object} return.medium
* @return {Object} return.large
*/
getPossibleImageSizesForWikitext( width, height ) {
const buckets = {
small: 300,
medium: 400,
large: 500
};
const sizes = {};
const widthToHeight = height / width;
for ( const bucketName in buckets ) {
const bucketWidth = buckets[ bucketName ];
if ( width > bucketWidth ) {
sizes[ bucketName ] = {
width: bucketWidth,
height: Math.round( bucketWidth * widthToHeight )
};
}
}
sizes.default = { width: null, height: null };
return sizes;
}
}
/**
* @property {number} Width threshold at which an image is to be considered "large"
* @static
*/
Embed.LARGE_IMAGE_WIDTH_THRESHOLD = 1200;
/**
* @property {number} Height threshold at which an image is to be considered "large"
* @static
*/
Embed.LARGE_IMAGE_HEIGHT_THRESHOLD = 900;
module.exports = Embed;
}() );