114 lines
3.6 KiB
JavaScript
114 lines
3.6 KiB
JavaScript
/**
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* Vector-specific scripts
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*/
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jQuery( function ( $ ) {
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/**
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* Collapsible tabs
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*/
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var $cactions = $( '#p-cactions' ),
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$tabContainer = $( '#p-views ul' ),
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rAF = window.requestAnimationFrame || setTimeout,
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// Avoid forced style calculation during page load
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initialCactionsWidth = function () {
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var width = $cactions.width();
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initialCactionsWidth = function () {
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return width;
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};
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return width;
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};
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rAF( initialCactionsWidth );
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/**
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* Focus search input at the very end
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*/
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$( '#searchInput' ).attr( 'tabindex', $( document ).lastTabIndex() + 1 );
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/**
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* Dropdown menu accessibility
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*/
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$( 'div.vectorMenu' ).each( function () {
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var $el = $( this );
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$el.find( '> h3 > a' ).parent()
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.attr( 'tabindex', '0' )
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// For accessibility, show the menu when the h3 is clicked (bug 24298/46486)
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.on( 'click keypress', function ( e ) {
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if ( e.type === 'click' || e.which === 13 ) {
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$el.toggleClass( 'menuForceShow' );
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e.preventDefault();
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}
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} )
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// When the heading has focus, also set a class that will change the arrow icon
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.focus( function () {
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$el.find( '> a' ).addClass( 'vectorMenuFocus' );
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} )
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.blur( function () {
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$el.find( '> a' ).removeClass( 'vectorMenuFocus' );
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} )
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.find( '> a:first' )
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// As the h3 can already be focused there's no need for the link to be focusable
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.attr( 'tabindex', '-1' );
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} );
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// Bind callback functions to animate our drop down menu in and out
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// and then call the collapsibleTabs function on the menu
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$tabContainer
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.bind( 'beforeTabCollapse', function () {
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// If the dropdown was hidden, show it
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if ( $cactions.hasClass( 'emptyPortlet' ) ) {
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$cactions
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.removeClass( 'emptyPortlet' )
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.find( 'h3' )
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.css( 'width', '1px' ).animate( { width: initialCactionsWidth() }, 'normal' );
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}
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} )
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.bind( 'beforeTabExpand', function () {
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// If we're removing the last child node right now, hide the dropdown
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if ( $cactions.find( 'li' ).length === 1 ) {
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$cactions.find( 'h3' ).animate( { width: '1px' }, 'normal', function () {
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$( this ).attr( 'style', '' )
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.parent().addClass( 'emptyPortlet' );
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} );
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}
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} )
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.collapsibleTabs( {
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expandCondition: function ( eleWidth ) {
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// (This looks a bit awkward because we're doing expensive queries as late as possible.)
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var distance = $.collapsibleTabs.calculateTabDistance();
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// If there are at least eleWidth + 1 pixels of free space, expand.
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// We add 1 because .width() will truncate fractional values but .offset() will not.
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if ( distance >= eleWidth + 1 ) {
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return true;
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} else {
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// Maybe we can still expand? Account for the width of the "Actions" dropdown if the
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// expansion would hide it.
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if ( $cactions.find( 'li' ).length === 1 ) {
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return distance >= eleWidth + 1 - initialCactionsWidth();
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} else {
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return false;
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}
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}
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},
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collapseCondition: function () {
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// (This looks a bit awkward because we're doing expensive queries as late as possible.)
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// TODO The dropdown itself should probably "fold" to just the down-arrow (hiding the text)
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// if it can't fit on the line?
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// If there's an overlap, collapse.
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if ( $.collapsibleTabs.calculateTabDistance() < 0 ) {
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// But only if the width of the tab to collapse is smaller than the width of the dropdown
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// we would have to insert. An example language where this happens is Lithuanian (lt).
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if ( $cactions.hasClass( 'emptyPortlet' ) ) {
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return $tabContainer.children( 'li.collapsible:last' ).width() > initialCactionsWidth();
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} else {
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return true;
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}
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} else {
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return false;
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}
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}
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} );
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} );
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