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/*!
* VisualEditor UserInterface MWReferenceSearchWidget class.
*
* @copyright 2011-2018 VisualEditor Team's Cite sub-team and others; see AUTHORS.txt
* @license MIT
*/
/**
* Creates an ve.ui.MWReferenceSearchWidget object.
*
* @class
* @extends OO.ui.SearchWidget
*
* @constructor
* @param {Object} [config] Configuration options
*/
ve.ui.MWReferenceSearchWidget = function VeUiMWReferenceSearchWidget( config ) {
// Configuration initialization
config = ve.extendObject( {
placeholder: ve.msg( 'cite-ve-reference-input-placeholder' )
}, config );
// Parent constructor
ve.ui.MWReferenceSearchWidget.super.call( this, config );
// Properties
this.index = [];
this.indexEmpty = true;
this.built = false;
// Initialization
this.$element.addClass( 've-ui-mwReferenceSearchWidget' );
};
/* Inheritance */
OO.inheritClass( ve.ui.MWReferenceSearchWidget, OO.ui.SearchWidget );
/* Methods */
/**
* Handle query change events.
*
* @method
* @param {string} value New value
*/
ve.ui.MWReferenceSearchWidget.prototype.onQueryChange = function () {
// Parent method
ve.ui.MWReferenceSearchWidget.super.prototype.onQueryChange.call( this );
// Populate
this.addResults();
};
/**
* Set the internal list and check if it contains any references
*
* @param {ve.dm.InternalList} internalList Internal list
*/
ve.ui.MWReferenceSearchWidget.prototype.setInternalList = function ( internalList ) {
var i, iLen, groupNames, groupName, groups = internalList.getNodeGroups();
if ( this.results.findSelectedItem() ) {
this.results.findSelectedItem().setSelected( false );
}
this.internalList = internalList;
this.internalList.connect( this, { update: 'onInternalListUpdate' } );
this.internalList.getListNode().connect( this, { update: 'onListNodeUpdate' } );
groupNames = Object.keys( groups );
for ( i = 0, iLen = groupNames.length; i < iLen; i++ ) {
groupName = groupNames[ i ];
if ( groupName.lastIndexOf( 'mwReference/' ) !== 0 ) {
continue;
}
if ( groups[ groupName ].indexOrder.length ) {
this.indexEmpty = false;
return;
}
}
this.indexEmpty = true;
};
/**
* Handle the updating of the InternalList object.
*
* This will occur after a document transaction.
*
* @method
* @param {string[]} groupsChanged A list of groups which have changed in this transaction
*/
ve.ui.MWReferenceSearchWidget.prototype.onInternalListUpdate = function ( groupsChanged ) {
var i, len;
for ( i = 0, len = groupsChanged.length; i < len; i++ ) {
if ( groupsChanged[ i ].indexOf( 'mwReference/' ) === 0 ) {
this.built = false;
break;
}
}
};
/**
* Handle the updating of the InternalListNode.
*
* This will occur after changes to any InternalItemNode.
*
* @method
*/
ve.ui.MWReferenceSearchWidget.prototype.onListNodeUpdate = function () {
this.built = false;
};
/**
* Build a searchable index of references.
*
* @method
*/
ve.ui.MWReferenceSearchWidget.prototype.buildIndex = function () {
var n, i, iLen, j, jLen, refModel, group, groupName, groupNames, view, text, firstNodes, indexOrder,
refGroup, refNode, matches, name, citation,
groups = this.internalList.getNodeGroups();
if ( this.built ) {
return;
}
function extractAttrs() {
text += ' ' + this.getAttribute( 'href' );
}
this.index = [];
groupNames = Object.keys( groups ).sort();
for ( i = 0, iLen = groupNames.length; i < iLen; i++ ) {
groupName = groupNames[ i ];
if ( groupName.lastIndexOf( 'mwReference/' ) !== 0 ) {
continue;
}
group = groups[ groupName ];
firstNodes = group.firstNodes;
indexOrder = group.indexOrder;
n = 0;
for ( j = 0, jLen = indexOrder.length; j < jLen; j++ ) {
refNode = firstNodes[ indexOrder[ j ] ];
// Exclude placeholder references
if ( refNode.getAttribute( 'placeholder' ) ) {
continue;
}
// Only increment counter for real references
n++;
refModel = ve.dm.MWReferenceModel.static.newFromReferenceNode( refNode );
view = new ve.ui.MWPreviewElement(
this.internalList.getItemNode( refModel.getListIndex() )
);
refGroup = refModel.getGroup();
citation = ( refGroup && refGroup.length ? refGroup + ' ' : '' ) + n;
matches = refModel.getListKey().match( /^literal\/(.*)$/ );
name = matches && matches[ 1 ] || '';
// Hide previously auto-generated reference names
if ( name.match( /^:[0-9]+$/ ) ) {
name = '';
}
// TODO: At some point we need to make sure this text is updated in
// case the view node is still rendering. This shouldn't happen because
// all references are supposed to be in the store and therefore are
// immediately rendered, but we shouldn't trust that on principle to
// account for edge cases.
// Make visible text, citation and reference name searchable
text = [ view.$element.text().toLowerCase(), citation, name ].join( ' ' );
// Make URLs searchable
view.$element.find( 'a[href]' ).each( extractAttrs );
this.index.push( {
$element: view.$element,
text: text,
reference: refModel,
citation: citation,
name: name
} );
}
}
// Re-populate
this.onQueryChange();
this.built = true;
};
/**
* Check whether buildIndex will create an empty index based on the current internalList.
*
* @return {boolean} Index is empty
*/
ve.ui.MWReferenceSearchWidget.prototype.isIndexEmpty = function () {
return this.indexEmpty;
};
/**
* Handle media query response events.
*
* @method
*/
ve.ui.MWReferenceSearchWidget.prototype.addResults = function () {
var i, len, item, $citation, $name,
query = this.query.getValue().trim().toLowerCase(),
items = [];
for ( i = 0, len = this.index.length; i < len; i++ ) {
item = this.index[ i ];
if ( item.text.indexOf( query ) >= 0 ) {
$citation = $( '<div>' )
.addClass( 've-ui-mwReferenceSearchWidget-citation' )
.text( '[' + item.citation + ']' );
$name = $( '<div>' )
.addClass( 've-ui-mwReferenceSearchWidget-name' )
.text( item.name );
items.push(
new ve.ui.MWReferenceResultWidget( {
data: item.reference,
label: $citation.add( $name ).add( item.$element )
} )
);
}
}
this.results.addItems( items );
};
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