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/**
* Add search suggestions to the search form.
*/
( function ( mw, $ ) {
$( document ).ready( function ( $ ) {
var map, resultRenderCache, searchboxesSelectors,
// Region where the suggestions box will appear directly below
// (using the same width). Can be a container element or the input
// itself, depending on what suits best in the environment.
// For Vector the suggestion box should align with the simpleSearch
// container's borders, in other skins it should align with the input
// element (not the search form, as that would leave the buttons
// vertically between the input and the suggestions).
$searchRegion = $( '#simpleSearch, #searchInput' ).first(),
$searchInput = $( '#searchInput' );
// Compatibility map
map = {
browsers: {
// Left-to-right languages
ltr: {
// SimpleSearch is broken in Opera < 9.6
opera: [['>=', 9.6]],
docomo: false,
blackberry: false,
ipod: false,
iphone: false
},
// Right-to-left languages
rtl: {
opera: [['>=', 9.6]],
docomo: false,
blackberry: false,
ipod: false,
iphone: false
}
}
};
if ( !$.client.test( map ) ) {
return;
}
// Compute form data for search suggestions functionality.
function computeResultRenderCache( context ) {
var $form, formAction, baseHref, linkParams;
// Compute common parameters for links' hrefs
$form = context.config.$region.closest( 'form' );
formAction = $form.attr( 'action' );
baseHref = formAction + ( formAction.match(/\?/) ? '&' : '?' );
linkParams = {};
$.each( $form.serializeArray(), function ( idx, obj ) {
linkParams[ obj.name ] = obj.value;
} );
return {
textParam: context.data.$textbox.attr( 'name' ),
linkParams: linkParams,
baseHref: baseHref
};
}
// The function used to render the suggestions.
function renderFunction( text, context ) {
if ( !resultRenderCache ) {
resultRenderCache = computeResultRenderCache( context );
}
// linkParams object is modified and reused
resultRenderCache.linkParams[ resultRenderCache.textParam ] = text;
// this is the container <div>, jQueryfied
this
.append(
// the <span> is needed for $.autoEllipsis to work
$( '<span>' )
.css( 'whiteSpace', 'nowrap' )
.text( text )
)
.wrap(
$( '<a>' )
.attr( 'href', resultRenderCache.baseHref + $.param( resultRenderCache.linkParams ) )
.addClass( 'mw-searchSuggest-link' )
);
}
function specialRenderFunction( query, context ) {
var $el = this;
if ( !resultRenderCache ) {
resultRenderCache = computeResultRenderCache( context );
}
// linkParams object is modified and reused
resultRenderCache.linkParams[ resultRenderCache.textParam ] = query;
if ( $el.children().length === 0 ) {
$el
.append(
$( '<div>' )
.addClass( 'special-label' )
.text( mw.msg( 'searchsuggest-containing' ) ),
$( '<div>' )
.addClass( 'special-query' )
.text( query )
.autoEllipsis()
)
.show();
} else {
$el.find( '.special-query' )
.text( query )
.autoEllipsis();
}
if ( $el.parent().hasClass( 'mw-searchSuggest-link' ) ) {
$el.parent().attr( 'href', resultRenderCache.baseHref + $.param( resultRenderCache.linkParams ) + '&fulltext=1' );
} else {
$el.wrap(
$( '<a>' )
.attr( 'href', resultRenderCache.baseHref + $.param( resultRenderCache.linkParams ) + '&fulltext=1' )
.addClass( 'mw-searchSuggest-link' )
);
}
}
// General suggestions functionality for all search boxes
searchboxesSelectors = [
// Primary searchbox on every page in standard skins
'#searchInput',
// Secondary searchbox in legacy skins (LegacyTemplate::searchForm uses id "searchInput + unique id")
'#searchInput2',
// Special:Search
'#powerSearchText',
'#searchText',
// Generic selector for skins with multiple searchboxes (used by CologneBlue)
'.mw-searchInput'
];
$( searchboxesSelectors.join(', ') )
.suggestions( {
fetch: function ( query ) {
var $el, jqXhr;
if ( query.length !== 0 ) {
$el = $(this);
jqXhr = $.ajax( {
url: mw.util.wikiScript( 'api' ),
data: {
format: 'json',
action: 'opensearch',
search: query,
namespace: 0,
suggest: ''
},
dataType: 'json',
success: function ( data ) {
if ( $.isArray( data ) && data.length ) {
$el.suggestions( 'suggestions', data[1] );
}
}
});
$el.data( 'request', jqXhr );
}
},
cancel: function () {
var jqXhr = $(this).data( 'request' );
// If the delay setting has caused the fetch to have not even happened
// yet, the jqXHR object will have never been set.
if ( jqXhr && $.isFunction( jqXhr.abort ) ) {
jqXhr.abort();
$(this).removeData( 'request' );
}
},
result: {
render: renderFunction,
select: function ( $input ) {
$input.closest( 'form' ).submit();
}
},
delay: 120,
highlightInput: true
} )
.bind( 'paste cut drop', function () {
// make sure paste and cut events from the mouse and drag&drop events
// trigger the keypress handler and cause the suggestions to update
$( this ).trigger( 'keypress' );
} );
// Ensure that the thing is actually present!
if ( $searchRegion.length === 0 ) {
// Don't try to set anything up if simpleSearch is disabled sitewide.
// The loader code loads us if the option is present, even if we're
// not actually enabled (anymore).
return;
}
// Placeholder text for search box
$searchInput
.attr( 'placeholder', mw.msg( 'searchsuggest-search' ) )
.placeholder();
// Special suggestions functionality for skin-provided search box
$searchInput.suggestions( {
result: {
render: renderFunction,
select: function ( $input ) {
$input.closest( 'form' ).submit();
}
},
special: {
render: specialRenderFunction,
select: function ( $input ) {
$input.closest( 'form' ).append(
$( '<input type="hidden" name="fulltext" value="1"/>' )
);
$input.closest( 'form' ).submit();
}
},
$region: $searchRegion
} );
// In most skins (at least Monobook and Vector), the font-size is messed up in <body>.
// (they use 2 elements to get a sane font-height). So, instead of making exceptions for
// each skin or adding more stylesheets, just copy it from the active element so auto-fit.
$searchInput
.data( 'suggestions-context' )
.data.$container
.css( 'fontSize', $searchInput.css( 'fontSize' ) );
} );
}( mediaWiki, jQuery ) );