mediawiki-extensions-Visual.../modules/ve-mw/preinit/ve.init.mw.DiffPage.init.js

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/*!
* VisualEditor MediaWiki DiffPage init.
*
* @copyright 2011-2020 VisualEditor Team and others; see AUTHORS.txt
* @license The MIT License (MIT); see LICENSE.txt
*/
/* eslint-disable no-jquery/no-global-selector */
( function () {
var reviewModeButtonSelect, lastDiff,
$wikitextDiffContainer, $wikitextDiffHeader, $wikitextDiffBody,
$visualDiffContainer = $( '<div>' ),
$visualDiff = $( '<div>' ),
progress = new OO.ui.ProgressBarWidget( { classes: [ 've-init-mw-diffPage-loading' ] } ),
originalUri = new mw.Uri(),
initMode = originalUri.query.diffmode || mw.user.options.get( 'visualeditor-diffmode-historical' ) || 'source',
conf = mw.config.get( 'wgVisualEditorConfig' ),
pluginModules = conf.pluginModules.filter( mw.loader.getState );
if ( initMode !== 'visual' ) {
// Enforce a valid mode, to avoid visual glitches in button-selection.
initMode = 'source';
}
$visualDiffContainer.append(
progress.$element.addClass( 'oo-ui-element-hidden' ),
$visualDiff
);
function onReviewModeButtonSelectSelect( item ) {
var uri = new mw.Uri();
var oldPageName, newPageName;
if ( mw.config.get( 'wgCanonicalSpecialPageName' ) !== 'ComparePages' ) {
oldPageName = newPageName = mw.config.get( 'wgRelevantPageName' );
} else {
oldPageName = uri.query.page1;
newPageName = uri.query.page2;
}
var mode = item.getData();
var isVisual = mode === 'visual';
$visualDiffContainer.toggleClass( 'oo-ui-element-hidden', !isVisual );
$wikitextDiffBody.toggleClass( 'oo-ui-element-hidden', isVisual );
var $revSlider = $( '.mw-revslider-container' );
$revSlider.toggleClass( 've-init-mw-diffPage-revSlider-visual', isVisual );
if ( isVisual ) {
// Highlight the headers using the same styles as the diff, to better indicate
// the meaning of headers when not using two-column diff.
$wikitextDiffHeader.find( '#mw-diff-otitle1' ).attr( 'data-diff-action', 'remove' );
$wikitextDiffHeader.find( '#mw-diff-ntitle1' ).attr( 'data-diff-action', 'insert' );
} else {
$wikitextDiffHeader.find( '#mw-diff-otitle1' ).removeAttr( 'data-diff-action' );
$wikitextDiffHeader.find( '#mw-diff-ntitle1' ).removeAttr( 'data-diff-action' );
}
var oldId = mw.config.get( 'wgDiffOldId' );
var newId = mw.config.get( 'wgDiffNewId' );
if ( isVisual && !(
lastDiff && lastDiff.oldId === oldId && lastDiff.newId === newId &&
lastDiff.oldPageName === oldPageName && lastDiff.newPageName === newPageName
) ) {
$visualDiff.empty();
progress.$element.removeClass( 'oo-ui-element-hidden' );
// TODO: Load a smaller subset of VE for computing the visual diff
var modulePromise = mw.loader.using( [ 'ext.visualEditor.articleTarget' ].concat( pluginModules ) );
mw.libs.ve.diffLoader.getVisualDiffGeneratorPromise( oldId, newId, modulePromise, oldPageName, newPageName ).then( function ( visualDiffGenerator ) {
// This class is loaded via modulePromise above
// eslint-disable-next-line no-undef
var diffElement = new ve.ui.DiffElement( visualDiffGenerator(), { classes: [ 've-init-mw-diffPage-diff' ] } );
diffElement.$document.addClass( 'mw-parser-output content' );
mw.libs.ve.fixFragmentLinks( diffElement.$document[ 0 ], mw.Title.newFromText( newPageName ), 'mw-diffpage-visualdiff-' );
progress.$element.addClass( 'oo-ui-element-hidden' );
$visualDiff.append( diffElement.$element );
lastDiff = {
oldId: oldId,
newId: newId,
oldPageName: oldPageName,
newPageName: newPageName
};
diffElement.positionDescriptions();
}, function ( code, data ) {
mw.notify( new mw.Api().getErrorMessage( data ), { type: 'error' } );
reviewModeButtonSelect.selectItemByData( 'source' );
} );
}
if ( history.replaceState ) {
uri.query.diffmode = mode;
history.replaceState( history.state, document.title, uri );
}
}
function onReviewModeButtonSelectChoose( item ) {
var mode = item.getData();
if ( mode !== mw.user.options.get( 'visualeditor-diffmode-historical' ) ) {
mw.user.options.set( 'visualeditor-diffmode-historical', mode );
// Same as ve.init.target.getLocalApi()
new mw.Api().saveOption( 'visualeditor-diffmode-historical', mode );
}
}
mw.hook( 'wikipage.diff' ).add( function () {
$wikitextDiffContainer = $( 'table.diff[data-mw="interface"]' );
$wikitextDiffHeader = $wikitextDiffContainer.find( 'tr.diff-title' )
.add( $wikitextDiffContainer.find( 'td.diff-multi, td.diff-notice' ).parent() );
$wikitextDiffBody = $wikitextDiffContainer.find( 'tr' ).not( $wikitextDiffHeader );
$wikitextDiffContainer.after( $visualDiffContainer );
// The PHP widget was a ButtonGroupWidget, so replace with a
// ButtonSelectWidget instead of infusing.
reviewModeButtonSelect = new OO.ui.ButtonSelectWidget( {
items: [
new OO.ui.ButtonOptionWidget( { data: 'visual', icon: 'eye', label: mw.msg( 'visualeditor-savedialog-review-visual' ) } ),
new OO.ui.ButtonOptionWidget( { data: 'source', icon: 'wikiText', label: mw.msg( 'visualeditor-savedialog-review-wikitext' ) } )
]
} );
// Choose is only emitted when the user interacts with the widget, whereas
// select is emitted even when the mode is set programmatically (e.g. on load)
reviewModeButtonSelect.on( 'select', onReviewModeButtonSelectSelect );
reviewModeButtonSelect.on( 'choose', onReviewModeButtonSelectChoose );
$( '.ve-init-mw-diffPage-diffMode' ).empty().append( reviewModeButtonSelect.$element );
reviewModeButtonSelect.selectItemByData( initMode );
} );
}() );