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jquery-accessible-tabs_old_version.js
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jquery-accessible-tabs_old_version.js
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$(document).ready(function(){
/*
* jQuery Accessible tab panel system, using ARIA
* Website: http:https://a11y.nicolas-hoffmann.net/tabs/
* License MIT: https://github.com/nico3333fr/jquery-accessible-tabs-aria/blob/master/LICENSE
*/
// Store current URL hash.
var hash = window.location.hash.replace( "#", "" );
/* Tabs ------------------------------------------------------------------------------------------------------------ */
$( ".tabs__list" ).attr( "role", "tablist" ) // ul
.children( ".tabs__item" ).attr( "role", "presentation" ) // li
.find( ".tabs__link").attr( "role", "tab" ) // a
.each( function () {
// controls/tabindex attributes
var $this = $( this ),
controls = $this.attr( "href" ),
hx = $this.parents(".tabs__list").attr( "data-hx" ),
existing_hx = $this.parents(".tabs__list").attr( "data-existing-hx" ),
text = $this.html();
if ( typeof hx !== "undefined" && hx !== "undefined" && hx !== "" ) {
$(controls).prepend('<' + hx + ' class="invisible" tabindex="0">' + text + '</' + hx + '>');
}
if ( typeof existing_hx !== "undefined" && existing_hx !== "undefined" && existing_hx !== "" ) {
$(controls).find(existing_hx + ':first-child').attr('tabindex',0);
}
if ( typeof controls !== "undefined" && controls !== "" && controls !== "#" ) {
controls = controls.replace( "#", "" );
$this.attr({
"aria-controls": controls,
"tabindex": -1,
"aria-selected": "false"
});
}
else {
// PEBCAK
$this.remove();
}
$this.removeAttr("href");
} );
/* Tabs content ---------------------------------------------------------------------------------------------------- */
$( ".tabs__tabcontent" ).attr({
"role": "tabpanel", // contents
"aria-hidden": "true" // all hidden
//"tabindex": 0
})
.each( function() {
// label by link
var $this = $( this );
$this.attr( "aria-labelledby", "label_" + $this.attr( "id" ) );
} );
// search if hash is ON tabs
if ( hash !== "" ) {
// display
$( "#" + hash + ".tabs__tabcontent" ).removeAttr( "aria-hidden" );
// selection menu
$( "#label_" + hash + ".tabs__link" ).attr({
"aria-selected": "true",
"tabindex": 0
});
}
// search if hash is IN tabs
if ( hash !== "" && $( "#" + hash + ".tabs__tabcontent" ).length === 0 ) {
$( ".tabs__tabcontent" ).each( function() {
var $this = $(this),
$tab_id = $this.attr("id");
if ( $this.find( "#" + hash ).length ) {
// display
$this.removeAttr( "aria-hidden" );
// selection menu
$( "#label_" + $tab_id + ".tabs__link" ).attr({
"aria-selected": "true",
"tabindex": 0
});
}
});
}
// if no selected => select first
$( ".tabs" ).each( function(index) {
var $this = $(this);
if ( $this.find( '.tabs__link[aria-selected="true"]' ).length === 0 ) {
$this.find( ".tabs__link:first" ).attr({
"aria-selected": "true",
"tabindex": 0
});
$this.find( ".tabs__tabcontent:first" ).removeAttr( "aria-hidden" );
}
} );
/* Events ---------------------------------------------------------------------------------------------------------- */
/* click on a tab link */
$( "body" ).on( "click", ".tabs__link", function( event ) {
var $this = $( this ),
$parent = $this.parents( ".tabs" ),
hx = $parent.attr( "data-hx" );
// aria selected false on all links
$parent.find( ".tabs__link" ).attr({
"tabindex": -1,
"aria-selected": "false"
});
// add aria selected on $this
$this.attr({
"aria-selected": "true",
"tabindex": 0
});
// add aria-hidden on all tabs
$parent.find( ".tabs__tabcontent" ).attr( "aria-hidden", "true" );
// remove aria-hidden on tab linked
$( "#" + $this.attr( "aria-controls" ) ).removeAttr( "aria-hidden" );
event.preventDefault();
} )
/* Key down in tabs */
.on( "keydown", ".tabs", function( event ) {
var $parent = $(this),
$activated,
$focus_on_tab_only = false;
// some event should be activated only if the focus is on tabs (not on tabpanel)
if ( $( document.activeElement ).is( $parent.find('.tabs__link') ) ){
$focus_on_tab_only = true;
}
// catch keyboard event only if focus is on tab
if ($focus_on_tab_only && !event.ctrlKey) {
// strike up or left in the tab
if ( event.keyCode == 37 || event.keyCode == 38 ) {
// find previous tab
$activated = $parent.find( '.tabs__link[aria-selected="true"]' ).parent();
// if we are on first => activate last
if ( $activated.is( ".tabs__item:first-child" ) ) {
$parent.find( ".tabs__item:last-child a" ).click().focus();
}
// else activate previous
else {
$activated.prev().children( ".tabs__link" ).click().focus();
}
event.preventDefault();
}
// strike down or right in the tab
else if ( event.keyCode == 40 || event.keyCode == 39 ) {
// find next tab
$activated = $parent.find( '.tabs__link[aria-selected="true"]' ).parent();
// if we are on last => activate first
if ( $activated.is( ".tabs__item:last-child" ) ) {
$parent.find( ".tabs__item:first-child a" ).click().focus();
}
// else activate next
else {
$activated.next().children( ".tabs__link" ).click().focus();
}
event.preventDefault();
}
else if ( event.keyCode == 36 ) {
// activate first tab
$parent.find( ".tabs__item:first-child a" ).click().focus();
event.preventDefault();
}
else if ( event.keyCode == 35 ) {
// activate last tab
$parent.find( ".tabs__item:last-child a" ).click().focus();
event.preventDefault();
}
}
} )
.on( "keydown", ".tabs__tabcontent", function( event ) {
var $this = $(this),
$tab_to_focus,
$parent;
// CTRL up/Left
if ( (event.keyCode == 37 || event.keyCode == 38) && event.ctrlKey ) {
$tab_to_focus = $this.attr('aria-labelledby');
$("#" + $tab_to_focus).focus();
event.preventDefault();
}
// CTRL PageUp
if ( event.keyCode == 33 && event.ctrlKey ) {
$tab_focused = $this.attr('aria-labelledby');
$("#" + $tab_focused).focus();
$parent = $("#" + $tab_focused).parent();
// if we are on first => activate last
if ( $parent.is( ".tabs__item:first-child" ) ) {
$parent.parent().find( ".tabs__item:last-child a" ).click().focus();
}
// else activate prev
else {
$parent.prev().children( ".tabs__link" ).click().focus();
}
event.preventDefault();
}
// CTRL PageDown
if ( event.keyCode == 34 && event.ctrlKey ) {
$tab_focused = $this.attr('aria-labelledby');
$("#" + $tab_focused).focus();
$parent = $("#" + $tab_focused).parent();
// if we are on last => activate first
if ( $parent.is( ".tabs__item:last-child" ) ) {
$parent.parent().find( ".tabs__item:first-child a" ).click().focus();
}
// else activate next
else {
$parent.next().children( ".tabs__link" ).click().focus();
}
event.preventDefault();
}
} );
});