mediawiki-extensions-Cite/modules/ve-cite/ve.ce.MWReferencesListNode.js

343 lines
10 KiB
JavaScript

'use strict';
/*!
* VisualEditor ContentEditable MWReferencesListNode class.
*
* @copyright 2011-2018 VisualEditor Team's Cite sub-team and others; see AUTHORS.txt
* @license MIT
*/
/**
* ContentEditable MediaWiki references list node.
*
* @constructor
* @extends ve.ce.LeafNode
* @mixes ve.ce.FocusableNode
* @param {ve.dm.MWReferencesListNode} model Model to observe
* @param {Object} [config] Configuration options
*/
ve.ce.MWReferencesListNode = function VeCeMWReferencesListNode() {
// Parent constructor
ve.ce.MWReferencesListNode.super.apply( this, arguments );
// Mixin constructors
ve.ce.FocusableNode.call( this );
// Properties
this.internalList = null;
this.listNode = null;
this.modified = false;
// DOM changes
this.$element.addClass( 've-ce-mwReferencesListNode' );
this.$reflist = $( '<ol>' ).addClass( 'mw-references references' );
this.$originalRefList = null;
this.$refmsg = $( '<p>' )
.addClass( 've-ce-mwReferencesListNode-muted' );
// Events
this.getModel().connect( this, { attributeChange: 'onAttributeChange' } );
this.updateDebounced = ve.debounce( this.update.bind( this ) );
// Initialization
// Rendering the reference list can be slow, so do it in an idle callback
// (i.e. after the editor has finished loading). Previously we used the
// Parsoid DOM rendering for the first paint, and updated only when references
// were modified, but this means the reference list is out of sync with the
// model for features such as T54750.
mw.requestIdleCallback( this.update.bind( this ) );
};
/* Inheritance */
OO.inheritClass( ve.ce.MWReferencesListNode, ve.ce.LeafNode );
OO.mixinClass( ve.ce.MWReferencesListNode, ve.ce.FocusableNode );
/* Static Properties */
ve.ce.MWReferencesListNode.static.name = 'mwReferencesList';
ve.ce.MWReferencesListNode.static.tagName = 'div';
ve.ce.MWReferencesListNode.static.primaryCommandName = 'referencesList';
/* Static Methods */
/**
* @override
* @see ve.ce.LeafNode
*/
ve.ce.MWReferencesListNode.static.getDescription = function ( model ) {
return model.getAttribute( 'refGroup' );
};
/**
* @override
* @see ve.ce.FocusableNode
*/
ve.ce.MWReferencesListNode.prototype.getExtraHighlightClasses = function () {
return ve.ce.FocusableNode.prototype
.getExtraHighlightClasses.apply( this, arguments )
.concat( [ 've-ce-mwReferencesListNode-highlight' ] );
};
/* Methods */
/**
* Handle setup events.
*/
ve.ce.MWReferencesListNode.prototype.onSetup = function () {
this.internalList = this.getModel().getDocument().getInternalList();
this.listNode = this.internalList.getListNode();
this.internalList.connect( this, { update: 'onInternalListUpdate' } );
this.listNode.connect( this, { update: 'onListNodeUpdate' } );
// Parent method
ve.ce.MWReferencesListNode.super.prototype.onSetup.call( this );
};
/**
* Handle teardown events.
*/
ve.ce.MWReferencesListNode.prototype.onTeardown = function () {
// Parent method
ve.ce.MWReferencesListNode.super.prototype.onTeardown.call( this );
if ( !this.listNode ) {
return;
}
this.internalList.disconnect( this, { update: 'onInternalListUpdate' } );
this.listNode.disconnect( this, { update: 'onListNodeUpdate' } );
this.internalList = null;
this.listNode = null;
};
/**
* Handle the updating of the InternalList object.
*
* This will occur after a document transaction.
*
* @param {string[]} groupsChanged A list of groups which have changed in this transaction
*/
ve.ce.MWReferencesListNode.prototype.onInternalListUpdate = function ( groupsChanged ) {
// Only update if this group has been changed
if ( groupsChanged.indexOf( this.getModel().getAttribute( 'listGroup' ) ) !== -1 ) {
this.modified = true;
this.updateDebounced();
}
};
/**
* Rerender when the 'listGroup' attribute changes in the model.
*
* @param {string} key Attribute key
* @param {string} from Old value
* @param {string} to New value
*/
ve.ce.MWReferencesListNode.prototype.onAttributeChange = function ( key ) {
switch ( key ) {
case 'listGroup':
this.updateDebounced();
this.modified = true;
break;
case 'isResponsive':
this.updateClasses();
break;
}
};
/**
* Handle the updating of the InternalListNode.
*
* This will occur after changes to any InternalItemNode.
*/
ve.ce.MWReferencesListNode.prototype.onListNodeUpdate = function () {
// When the list node updates we're not sure which list group the item
// belonged to so we always update
// TODO: Only re-render the reference which has been edited
this.updateDebounced();
};
/**
* Update the references list.
*/
ve.ce.MWReferencesListNode.prototype.update = function () {
const model = this.getModel();
// Check the node hasn't been destroyed, as this method is debounced.
if ( !model ) {
return;
}
const internalList = model.getDocument().internalList;
const refGroup = model.getAttribute( 'refGroup' );
const listGroup = model.getAttribute( 'listGroup' );
const nodes = internalList.getNodeGroup( listGroup );
const hasModelReferences = !!( nodes && nodes.indexOrder.length );
let emptyText;
if ( refGroup !== '' ) {
emptyText = ve.msg( 'cite-ve-referenceslist-isempty', refGroup );
} else {
emptyText = ve.msg( 'cite-ve-referenceslist-isempty-default' );
}
// Use the Parsoid-provided DOM if:
//
// * There are no references in the model
// * There have been no changes to the references in the model (!this.modified)
//
// In practice this is for he.wiki where references are template-generated (T187495)
if (
!hasModelReferences &&
!this.modified &&
model.getElement().originalDomElementsHash
) {
// Create a copy when importing to the main document, as extensions may
// modify DOM nodes in the main doc.
this.$originalRefList = $( ve.copyDomElements( model.getStore().value(
model.getElement().originalDomElementsHash
), document ) );
if ( this.$originalRefList.find( 'li' ).length ) {
this.$element.append( this.$originalRefList );
} else {
this.$refmsg.text( emptyText );
this.$element.append( this.$refmsg );
}
return;
}
if ( this.$originalRefList ) {
this.$originalRefList.remove();
this.$originalRefList = null;
}
this.$reflist.detach().empty().attr( 'data-mw-group', refGroup || null );
this.$refmsg.detach();
if ( !hasModelReferences ) {
this.$refmsg.text( emptyText );
this.$element.append( this.$refmsg );
} else {
nodes.indexOrder.forEach( function ( index ) {
const firstNode = nodes.firstNodes[ index ];
const key = internalList.keys[ index ];
let keyedNodes = nodes.keyedNodes[ key ];
keyedNodes = keyedNodes.filter( function ( node ) {
// Exclude placeholders and references defined inside the references list node
return !node.getAttribute( 'placeholder' ) &&
!node.findParent( ve.dm.MWReferencesListNode );
} );
if ( !keyedNodes.length ) {
return;
}
const $li = $( '<li>' )
.append( this.renderBacklinks( keyedNodes, refGroup ), ' ' );
// Generate reference HTML from first item in key
const modelNode = internalList.getItemNode( firstNode.getAttribute( 'listIndex' ) );
if ( modelNode && modelNode.length ) {
const refPreview = new ve.ui.MWPreviewElement( modelNode, { useView: true } );
$li.append(
$( '<span>' )
.addClass( 'reference-text' )
.append( refPreview.$element )
);
} else {
$li.append(
$( '<span>' )
.addClass( 've-ce-mwReferencesListNode-muted' )
.text( ve.msg( 'cite-ve-referenceslist-missingref-in-list' ) )
).addClass( 've-ce-mwReferencesListNode-missingRef' );
}
if ( this.getRoot() ) {
const surface = this.getRoot().getSurface().getSurface();
$li.on( 'mousedown', function ( e ) {
if ( ve.isUnmodifiedLeftClick( e ) && modelNode && modelNode.length ) {
const items = ve.ui.contextItemFactory.getRelatedItems( [ firstNode ] )
.filter( ( item ) => item.name !== 'mobileActions' );
if ( items.length ) {
const contextItem = ve.ui.contextItemFactory.lookup( items[ 0 ].name );
if ( contextItem ) {
const command = surface.commandRegistry
.lookup( contextItem.static.commandName );
if ( command ) {
const fragmentArgs = {
fragment: surface.getModel()
.getLinearFragment( firstNode.getOuterRange(), true ),
selectFragmentOnClose: false
};
const newArgs = ve.copy( command.args );
if ( command.name === 'reference' ) {
newArgs[ 1 ] = fragmentArgs;
} else {
ve.extendObject( newArgs[ 0 ], fragmentArgs );
}
command.execute( surface, newArgs );
}
}
}
}
e.preventDefault();
} );
}
this.$reflist.append( $li );
}.bind( this ) );
this.updateClasses();
this.$element.append( this.$reflist );
}
};
/**
* Update ref list classes.
*
* Currently used to set responsive layout
*/
ve.ce.MWReferencesListNode.prototype.updateClasses = function () {
const isResponsive = this.getModel().getAttribute( 'isResponsive' );
this.$element
.toggleClass( 'mw-references-wrap', isResponsive )
.toggleClass( 'mw-references-columns', isResponsive && this.$reflist.children().length > 10 );
};
/**
* Build markers for backlinks
*
* @param {ve.dm.Node[]} keyedNodes A list of ref nodes linked to a reference list item
* @param {string} refGroup Reference group name
* @return {jQuery} Element containing backlinks
*/
ve.ce.MWReferencesListNode.prototype.renderBacklinks = function ( keyedNodes, refGroup ) {
if ( keyedNodes.length === 1 ) {
return $( '<a>' )
.attr( 'rel', 'mw:referencedBy' )
.attr( 'data-mw-group', refGroup || null )
.append( $( '<span>' ).addClass( 'mw-linkback-text' ).text( '↑ ' ) );
}
// named reference with multiple usages
const $refSpan = $( '<span>' ).attr( 'rel', 'mw:referencedBy' );
for ( let i = 0; i < keyedNodes.length; i++ ) {
$( '<a>' )
.attr( 'data-mw-group', refGroup || null )
.append( $( '<span>' ).addClass( 'mw-linkback-text' ).text( ( i + 1 ) + ' ' ) )
.appendTo( $refSpan );
}
return $refSpan;
};
/* Registration */
ve.ce.nodeFactory.register( ve.ce.MWReferencesListNode );