jquery-ui/ui/widgets/accordion.js
Jörn Zaefferer cb69f0025f All: Fix manifest issues for categories and CSS dependencies
Collapses "UI Core" and "Core" into just "Core".

Fixes bad paths for CSS dependencies. Regressed when moving widgets
into the widgets subfolder.
2015-10-23 09:09:51 -04:00

604 lines
15 KiB
JavaScript

/*!
* jQuery UI Accordion @VERSION
* http://jqueryui.com
*
* Copyright jQuery Foundation and other contributors
* Released under the MIT license.
* http://jquery.org/license
*/
//>>label: Accordion
//>>group: Widgets
//>>description: Displays collapsible content panels for presenting information in a limited amount of space.
//>>docs: http://api.jqueryui.com/accordion/
//>>demos: http://jqueryui.com/accordion/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/accordion.css
//>>css.theme: ../../themes/base/theme.css
( function( factory ) {
if ( typeof define === "function" && define.amd ) {
// AMD. Register as an anonymous module.
define( [
"jquery",
"../version",
"../keycode",
"../unique-id",
"../widget"
], factory );
} else {
// Browser globals
factory( jQuery );
}
}( function( $ ) {
return $.widget( "ui.accordion", {
version: "@VERSION",
options: {
active: 0,
animate: {},
classes: {
"ui-accordion-header": "ui-corner-top",
"ui-accordion-header-collapsed": "ui-corner-all",
"ui-accordion-content": "ui-corner-bottom"
},
collapsible: false,
event: "click",
header: "> li > :first-child, > :not(li):even",
heightStyle: "auto",
icons: {
activeHeader: "ui-icon-triangle-1-s",
header: "ui-icon-triangle-1-e"
},
// Callbacks
activate: null,
beforeActivate: null
},
hideProps: {
borderTopWidth: "hide",
borderBottomWidth: "hide",
paddingTop: "hide",
paddingBottom: "hide",
height: "hide"
},
showProps: {
borderTopWidth: "show",
borderBottomWidth: "show",
paddingTop: "show",
paddingBottom: "show",
height: "show"
},
_create: function() {
var options = this.options;
this.prevShow = this.prevHide = $();
this._addClass( "ui-accordion", "ui-widget ui-helper-reset" );
this.element.attr( "role", "tablist" );
// Don't allow collapsible: false and active: false / null
if ( !options.collapsible && ( options.active === false || options.active == null ) ) {
options.active = 0;
}
this._processPanels();
// handle negative values
if ( options.active < 0 ) {
options.active += this.headers.length;
}
this._refresh();
},
_getCreateEventData: function() {
return {
header: this.active,
panel: !this.active.length ? $() : this.active.next()
};
},
_createIcons: function() {
var icon, children,
icons = this.options.icons;
if ( icons ) {
icon = $( "<span>" );
this._addClass( icon, "ui-accordion-header-icon", "ui-icon " + icons.header );
icon.prependTo( this.headers );
children = this.active.children( ".ui-accordion-header-icon" );
this._removeClass( children, icons.header )
._addClass( children, null, icons.activeHeader )
._addClass( this.headers, "ui-accordion-icons" );
}
},
_destroyIcons: function() {
this._removeClass( this.headers, "ui-accordion-icons" );
this.headers.children( ".ui-accordion-header-icon" ).remove();
},
_destroy: function() {
var contents;
// Clean up main element
this.element.removeAttr( "role" );
// Clean up headers
this.headers
.removeAttr( "role aria-expanded aria-selected aria-controls tabIndex" )
.removeUniqueId();
this._destroyIcons();
// Clean up content panels
contents = this.headers.next()
.css( "display", "" )
.removeAttr( "role aria-hidden aria-labelledby" )
.removeUniqueId();
if ( this.options.heightStyle !== "content" ) {
contents.css( "height", "" );
}
},
_setOption: function( key, value ) {
if ( key === "active" ) {
// _activate() will handle invalid values and update this.options
this._activate( value );
return;
}
if ( key === "event" ) {
if ( this.options.event ) {
this._off( this.headers, this.options.event );
}
this._setupEvents( value );
}
this._super( key, value );
// Setting collapsible: false while collapsed; open first panel
if ( key === "collapsible" && !value && this.options.active === false ) {
this._activate( 0 );
}
if ( key === "icons" ) {
this._destroyIcons();
if ( value ) {
this._createIcons();
}
}
},
_setOptionDisabled: function( value ) {
this._super( value );
this.element.attr( "aria-disabled", value );
// Support: IE8 Only
// #5332 / #6059 - opacity doesn't cascade to positioned elements in IE
// so we need to add the disabled class to the headers and panels
this._toggleClass( null, "ui-state-disabled", !!value );
this._toggleClass( this.headers.add( this.headers.next() ), null, "ui-state-disabled",
!!value );
},
_keydown: function( event ) {
if ( event.altKey || event.ctrlKey ) {
return;
}
var keyCode = $.ui.keyCode,
length = this.headers.length,
currentIndex = this.headers.index( event.target ),
toFocus = false;
switch ( event.keyCode ) {
case keyCode.RIGHT:
case keyCode.DOWN:
toFocus = this.headers[ ( currentIndex + 1 ) % length ];
break;
case keyCode.LEFT:
case keyCode.UP:
toFocus = this.headers[ ( currentIndex - 1 + length ) % length ];
break;
case keyCode.SPACE:
case keyCode.ENTER:
this._eventHandler( event );
break;
case keyCode.HOME:
toFocus = this.headers[ 0 ];
break;
case keyCode.END:
toFocus = this.headers[ length - 1 ];
break;
}
if ( toFocus ) {
$( event.target ).attr( "tabIndex", -1 );
$( toFocus ).attr( "tabIndex", 0 );
$( toFocus ).trigger( "focus" );
event.preventDefault();
}
},
_panelKeyDown: function( event ) {
if ( event.keyCode === $.ui.keyCode.UP && event.ctrlKey ) {
$( event.currentTarget ).prev().trigger( "focus" );
}
},
refresh: function() {
var options = this.options;
this._processPanels();
// Was collapsed or no panel
if ( ( options.active === false && options.collapsible === true ) || !this.headers.length ) {
options.active = false;
this.active = $();
// active false only when collapsible is true
} else if ( options.active === false ) {
this._activate( 0 );
// was active, but active panel is gone
} else if ( this.active.length && !$.contains( this.element[ 0 ], this.active[ 0 ] ) ) {
// all remaining panel are disabled
if ( this.headers.length === this.headers.find( ".ui-state-disabled" ).length ) {
options.active = false;
this.active = $();
// activate previous panel
} else {
this._activate( Math.max( 0, options.active - 1 ) );
}
// was active, active panel still exists
} else {
// make sure active index is correct
options.active = this.headers.index( this.active );
}
this._destroyIcons();
this._refresh();
},
_processPanels: function() {
var prevHeaders = this.headers,
prevPanels = this.panels;
this.headers = this.element.find( this.options.header );
this._addClass( this.headers, "ui-accordion-header ui-accordion-header-collapsed",
"ui-state-default" );
this.panels = this.headers.next().filter( ":not(.ui-accordion-content-active)" ).hide();
this._addClass( this.panels, "ui-accordion-content", "ui-helper-reset ui-widget-content" );
// Avoid memory leaks (#10056)
if ( prevPanels ) {
this._off( prevHeaders.not( this.headers ) );
this._off( prevPanels.not( this.panels ) );
}
},
_refresh: function() {
var maxHeight,
options = this.options,
heightStyle = options.heightStyle,
parent = this.element.parent();
this.active = this._findActive( options.active );
this._addClass( this.active, "ui-accordion-header-active", "ui-state-active" )
._removeClass( this.active, "ui-accordion-header-collapsed" );
this._addClass( this.active.next(), "ui-accordion-content-active" );
this.active.next().show();
this.headers
.attr( "role", "tab" )
.each( function() {
var header = $( this ),
headerId = header.uniqueId().attr( "id" ),
panel = header.next(),
panelId = panel.uniqueId().attr( "id" );
header.attr( "aria-controls", panelId );
panel.attr( "aria-labelledby", headerId );
} )
.next()
.attr( "role", "tabpanel" );
this.headers
.not( this.active )
.attr( {
"aria-selected": "false",
"aria-expanded": "false",
tabIndex: -1
} )
.next()
.attr( {
"aria-hidden": "true"
} )
.hide();
// Make sure at least one header is in the tab order
if ( !this.active.length ) {
this.headers.eq( 0 ).attr( "tabIndex", 0 );
} else {
this.active.attr( {
"aria-selected": "true",
"aria-expanded": "true",
tabIndex: 0
} )
.next()
.attr( {
"aria-hidden": "false"
} );
}
this._createIcons();
this._setupEvents( options.event );
if ( heightStyle === "fill" ) {
maxHeight = parent.height();
this.element.siblings( ":visible" ).each( function() {
var elem = $( this ),
position = elem.css( "position" );
if ( position === "absolute" || position === "fixed" ) {
return;
}
maxHeight -= elem.outerHeight( true );
} );
this.headers.each( function() {
maxHeight -= $( this ).outerHeight( true );
} );
this.headers.next()
.each( function() {
$( this ).height( Math.max( 0, maxHeight -
$( this ).innerHeight() + $( this ).height() ) );
} )
.css( "overflow", "auto" );
} else if ( heightStyle === "auto" ) {
maxHeight = 0;
this.headers.next()
.each( function() {
maxHeight = Math.max( maxHeight, $( this ).css( "height", "" ).height() );
} )
.height( maxHeight );
}
},
_activate: function( index ) {
var active = this._findActive( index )[ 0 ];
// Trying to activate the already active panel
if ( active === this.active[ 0 ] ) {
return;
}
// Trying to collapse, simulate a click on the currently active header
active = active || this.active[ 0 ];
this._eventHandler( {
target: active,
currentTarget: active,
preventDefault: $.noop
} );
},
_findActive: function( selector ) {
return typeof selector === "number" ? this.headers.eq( selector ) : $();
},
_setupEvents: function( event ) {
var events = {
keydown: "_keydown"
};
if ( event ) {
$.each( event.split( " " ), function( index, eventName ) {
events[ eventName ] = "_eventHandler";
} );
}
this._off( this.headers.add( this.headers.next() ) );
this._on( this.headers, events );
this._on( this.headers.next(), { keydown: "_panelKeyDown" } );
this._hoverable( this.headers );
this._focusable( this.headers );
},
_eventHandler: function( event ) {
var activeChildren, clickedChildren,
options = this.options,
active = this.active,
clicked = $( event.currentTarget ),
clickedIsActive = clicked[ 0 ] === active[ 0 ],
collapsing = clickedIsActive && options.collapsible,
toShow = collapsing ? $() : clicked.next(),
toHide = active.next(),
eventData = {
oldHeader: active,
oldPanel: toHide,
newHeader: collapsing ? $() : clicked,
newPanel: toShow
};
event.preventDefault();
if (
// click on active header, but not collapsible
( clickedIsActive && !options.collapsible ) ||
// allow canceling activation
( this._trigger( "beforeActivate", event, eventData ) === false ) ) {
return;
}
options.active = collapsing ? false : this.headers.index( clicked );
// When the call to ._toggle() comes after the class changes
// it causes a very odd bug in IE 8 (see #6720)
this.active = clickedIsActive ? $() : clicked;
this._toggle( eventData );
// Switch classes
// corner classes on the previously active header stay after the animation
this._removeClass( active, "ui-accordion-header-active", "ui-state-active" );
if ( options.icons ) {
activeChildren = active.children( ".ui-accordion-header-icon" );
this._removeClass( activeChildren, null, options.icons.activeHeader )
._addClass( activeChildren, null, options.icons.header );
}
if ( !clickedIsActive ) {
this._removeClass( clicked, "ui-accordion-header-collapsed" )
._addClass( clicked, "ui-accordion-header-active", "ui-state-active" );
if ( options.icons ) {
clickedChildren = clicked.children( ".ui-accordion-header-icon" );
this._removeClass( clickedChildren, null, options.icons.header )
._addClass( clickedChildren, null, options.icons.activeHeader );
}
this._addClass( clicked.next(), "ui-accordion-content-active" );
}
},
_toggle: function( data ) {
var toShow = data.newPanel,
toHide = this.prevShow.length ? this.prevShow : data.oldPanel;
// Handle activating a panel during the animation for another activation
this.prevShow.add( this.prevHide ).stop( true, true );
this.prevShow = toShow;
this.prevHide = toHide;
if ( this.options.animate ) {
this._animate( toShow, toHide, data );
} else {
toHide.hide();
toShow.show();
this._toggleComplete( data );
}
toHide.attr( {
"aria-hidden": "true"
} );
toHide.prev().attr( {
"aria-selected": "false",
"aria-expanded": "false"
} );
// if we're switching panels, remove the old header from the tab order
// if we're opening from collapsed state, remove the previous header from the tab order
// if we're collapsing, then keep the collapsing header in the tab order
if ( toShow.length && toHide.length ) {
toHide.prev().attr( {
"tabIndex": -1,
"aria-expanded": "false"
} );
} else if ( toShow.length ) {
this.headers.filter( function() {
return parseInt( $( this ).attr( "tabIndex" ), 10 ) === 0;
} )
.attr( "tabIndex", -1 );
}
toShow
.attr( "aria-hidden", "false" )
.prev()
.attr( {
"aria-selected": "true",
"aria-expanded": "true",
tabIndex: 0
} );
},
_animate: function( toShow, toHide, data ) {
var total, easing, duration,
that = this,
adjust = 0,
boxSizing = toShow.css( "box-sizing" ),
down = toShow.length &&
( !toHide.length || ( toShow.index() < toHide.index() ) ),
animate = this.options.animate || {},
options = down && animate.down || animate,
complete = function() {
that._toggleComplete( data );
};
if ( typeof options === "number" ) {
duration = options;
}
if ( typeof options === "string" ) {
easing = options;
}
// fall back from options to animation in case of partial down settings
easing = easing || options.easing || animate.easing;
duration = duration || options.duration || animate.duration;
if ( !toHide.length ) {
return toShow.animate( this.showProps, duration, easing, complete );
}
if ( !toShow.length ) {
return toHide.animate( this.hideProps, duration, easing, complete );
}
total = toShow.show().outerHeight();
toHide.animate( this.hideProps, {
duration: duration,
easing: easing,
step: function( now, fx ) {
fx.now = Math.round( now );
}
} );
toShow
.hide()
.animate( this.showProps, {
duration: duration,
easing: easing,
complete: complete,
step: function( now, fx ) {
fx.now = Math.round( now );
if ( fx.prop !== "height" ) {
if ( boxSizing === "content-box" ) {
adjust += fx.now;
}
} else if ( that.options.heightStyle !== "content" ) {
fx.now = Math.round( total - toHide.outerHeight() - adjust );
adjust = 0;
}
}
} );
},
_toggleComplete: function( data ) {
var toHide = data.oldPanel,
prev = toHide.prev();
this._removeClass( toHide, "ui-accordion-content-active" );
this._removeClass( prev, "ui-accordion-header-active" )
._addClass( prev, "ui-accordion-header-collapsed" );
// Work around for rendering bug in IE (#5421)
if ( toHide.length ) {
toHide.parent()[ 0 ].className = toHide.parent()[ 0 ].className;
}
this._trigger( "activate", null, data );
}
} );
} ) );