mirror of
https://github.com/jquery/jquery-ui.git
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605 lines
16 KiB
JavaScript
605 lines
16 KiB
JavaScript
/*
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* jQuery UI Accordion @VERSION
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*
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* Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
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* Dual licensed under the MIT or GPL Version 2 licenses.
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* http://jquery.org/license
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*
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* http://docs.jquery.com/UI/Accordion
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*
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* Depends:
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* jquery.ui.core.js
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* jquery.ui.widget.js
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*/
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(function( $, undefined ) {
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$.widget( "ui.accordion", {
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options: {
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active: 0,
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animated: "slide",
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autoHeight: true,
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clearStyle: false,
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collapsible: false,
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event: "click",
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fillSpace: false,
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header: "> li > :first-child,> :not(li):even",
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icons: {
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header: "ui-icon-triangle-1-e",
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headerSelected: "ui-icon-triangle-1-s"
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},
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navigation: false,
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navigationFilter: function() {
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return this.href.toLowerCase() === location.href.toLowerCase();
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}
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},
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_create: function() {
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var self = this,
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options = self.options;
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self.running = 0;
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self.element
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.addClass( "ui-accordion ui-widget ui-helper-reset" )
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// in lack of child-selectors in CSS
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// we need to mark top-LIs in a UL-accordion for some IE-fix
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.children( "li" )
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.addClass( "ui-accordion-li-fix" );
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self.headers = self.element.find( options.header )
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.addClass( "ui-accordion-header ui-helper-reset ui-state-default ui-corner-all" )
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.bind( "mouseenter.accordion", function() {
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if ( options.disabled ) {
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return;
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}
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$( this ).addClass( "ui-state-hover" );
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})
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.bind( "mouseleave.accordion", function() {
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if ( options.disabled ) {
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return;
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}
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$( this ).removeClass( "ui-state-hover" );
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})
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.bind( "focus.accordion", function() {
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if ( options.disabled ) {
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return;
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}
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$( this ).addClass( "ui-state-focus" );
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})
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.bind( "blur.accordion", function() {
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if ( options.disabled ) {
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return;
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}
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$( this ).removeClass( "ui-state-focus" );
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});
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self.headers.next()
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.addClass( "ui-accordion-content ui-helper-reset ui-widget-content ui-corner-bottom" );
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if ( options.navigation ) {
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var current = self.element.find( "a" ).filter( options.navigationFilter ).eq( 0 );
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if ( current.length ) {
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var header = current.closest( ".ui-accordion-header" );
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if ( header.length ) {
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// anchor within header
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self.active = header;
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} else {
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// anchor within content
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self.active = current.closest( ".ui-accordion-content" ).prev();
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}
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}
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}
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self.active = self._findActive( self.active || options.active )
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.addClass( "ui-state-default ui-state-active" )
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.toggleClass( "ui-corner-all" )
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.toggleClass( "ui-corner-top" );
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self.active.next().addClass( "ui-accordion-content-active" );
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self._createIcons();
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self.resize();
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// ARIA
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self.element.attr( "role", "tablist" );
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self.headers
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.attr( "role", "tab" )
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.bind( "keydown.accordion", function( event ) {
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return self._keydown( event );
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})
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.next()
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.attr( "role", "tabpanel" );
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self.headers
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.not( self.active || "" )
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.attr({
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"aria-expanded": "false",
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tabIndex: -1
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})
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.next()
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.hide();
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// make sure at least one header is in the tab order
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if ( !self.active.length ) {
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self.headers.eq( 0 ).attr( "tabIndex", 0 );
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} else {
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self.active
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.attr({
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"aria-expanded": "true",
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tabIndex: 0
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});
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}
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// only need links in tab order for Safari
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if ( !$.browser.safari ) {
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self.headers.find( "a" ).attr( "tabIndex", -1 );
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}
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if ( options.event ) {
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self.headers.bind( options.event.split(" ").join(".accordion ") + ".accordion", function(event) {
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self._clickHandler.call( self, event, this );
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event.preventDefault();
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});
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}
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},
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_createIcons: function() {
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var options = this.options;
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if ( options.icons ) {
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$( "<span></span>" )
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.addClass( "ui-icon " + options.icons.header )
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.prependTo( this.headers );
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this.active.children( ".ui-icon" )
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.toggleClass(options.icons.header)
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.toggleClass(options.icons.headerSelected);
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this.element.addClass( "ui-accordion-icons" );
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}
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},
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_destroyIcons: function() {
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this.headers.children( ".ui-icon" ).remove();
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this.element.removeClass( "ui-accordion-icons" );
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},
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destroy: function() {
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var options = this.options;
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this.element
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.removeClass( "ui-accordion ui-widget ui-helper-reset" )
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.removeAttr( "role" );
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this.headers
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.unbind( ".accordion" )
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.removeClass( "ui-accordion-header ui-accordion-disabled ui-helper-reset ui-state-default ui-corner-all ui-state-active ui-state-disabled ui-corner-top" )
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.removeAttr( "role" )
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.removeAttr( "aria-expanded" )
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.removeAttr( "tabIndex" );
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this.headers.find( "a" ).removeAttr( "tabIndex" );
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this._destroyIcons();
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var contents = this.headers.next()
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.css( "display", "" )
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.removeAttr( "role" )
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.removeClass( "ui-helper-reset ui-widget-content ui-corner-bottom ui-accordion-content ui-accordion-content-active ui-accordion-disabled ui-state-disabled" );
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if ( options.autoHeight || options.fillHeight ) {
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contents.css( "height", "" );
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}
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return $.Widget.prototype.destroy.call( this );
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},
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_setOption: function( key, value ) {
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$.Widget.prototype._setOption.apply( this, arguments );
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if ( key == "active" ) {
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this.activate( value );
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}
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if ( key == "icons" ) {
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this._destroyIcons();
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if ( value ) {
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this._createIcons();
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}
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}
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// #5332 - opacity doesn't cascade to positioned elements in IE
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// so we need to add the disabled class to the headers and panels
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if ( key == "disabled" ) {
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this.headers.add(this.headers.next())
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[ value ? "addClass" : "removeClass" ](
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"ui-accordion-disabled ui-state-disabled" );
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}
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},
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_keydown: function( event ) {
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if ( this.options.disabled || event.altKey || event.ctrlKey ) {
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return;
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}
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var keyCode = $.ui.keyCode,
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length = this.headers.length,
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currentIndex = this.headers.index( event.target ),
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toFocus = false;
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switch ( event.keyCode ) {
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case keyCode.RIGHT:
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case keyCode.DOWN:
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toFocus = this.headers[ ( currentIndex + 1 ) % length ];
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break;
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case keyCode.LEFT:
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case keyCode.UP:
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toFocus = this.headers[ ( currentIndex - 1 + length ) % length ];
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break;
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case keyCode.SPACE:
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case keyCode.ENTER:
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this._clickHandler( { target: event.target }, event.target );
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event.preventDefault();
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}
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if ( toFocus ) {
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$( event.target ).attr( "tabIndex", -1 );
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$( toFocus ).attr( "tabIndex", 0 );
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toFocus.focus();
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return false;
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}
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return true;
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},
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resize: function() {
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var options = this.options,
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maxHeight;
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if ( options.fillSpace ) {
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if ( $.browser.msie ) {
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var defOverflow = this.element.parent().css( "overflow" );
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this.element.parent().css( "overflow", "hidden");
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}
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maxHeight = this.element.parent().height();
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if ($.browser.msie) {
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this.element.parent().css( "overflow", defOverflow );
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}
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this.headers.each(function() {
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maxHeight -= $( this ).outerHeight( true );
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});
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this.headers.next()
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.each(function() {
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$( this ).height( Math.max( 0, maxHeight -
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$( this ).innerHeight() + $( this ).height() ) );
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})
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.css( "overflow", "auto" );
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} else if ( options.autoHeight ) {
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maxHeight = 0;
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this.headers.next()
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.each(function() {
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maxHeight = Math.max( maxHeight, $( this ).height( "" ).height() );
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})
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.height( maxHeight );
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}
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return this;
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},
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activate: function( index ) {
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// TODO this gets called on init, changing the option without an explicit call for that
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this.options.active = index;
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// call clickHandler with custom event
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var active = this._findActive( index )[ 0 ];
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this._clickHandler( { target: active }, active );
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return this;
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},
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_findActive: function( selector ) {
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return selector
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? typeof selector === "number"
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? this.headers.filter( ":eq(" + selector + ")" )
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: this.headers.not( this.headers.not( selector ) )
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: selector === false
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? $( [] )
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: this.headers.filter( ":eq(0)" );
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},
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// TODO isn't event.target enough? why the separate target argument?
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_clickHandler: function( event, target ) {
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var options = this.options;
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if ( options.disabled ) {
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return;
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}
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// called only when using activate(false) to close all parts programmatically
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if ( !event.target ) {
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if ( !options.collapsible ) {
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return;
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}
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this.active
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.removeClass( "ui-state-active ui-corner-top" )
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.addClass( "ui-state-default ui-corner-all" )
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.children( ".ui-icon" )
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.removeClass( options.icons.headerSelected )
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.addClass( options.icons.header );
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this.active.next().addClass( "ui-accordion-content-active" );
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var toHide = this.active.next(),
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data = {
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options: options,
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newHeader: $( [] ),
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oldHeader: options.active,
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newContent: $( [] ),
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oldContent: toHide
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},
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toShow = ( this.active = $( [] ) );
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this._toggle( toShow, toHide, data );
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return;
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}
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// get the click target
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var clicked = $( event.currentTarget || target ),
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clickedIsActive = clicked[0] === this.active[0];
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// TODO the option is changed, is that correct?
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// TODO if it is correct, shouldn't that happen after determining that the click is valid?
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options.active = options.collapsible && clickedIsActive ?
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false :
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this.headers.index( clicked );
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// if animations are still active, or the active header is the target, ignore click
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if ( this.running || ( !options.collapsible && clickedIsActive ) ) {
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return;
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}
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// find elements to show and hide
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var active = this.active,
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toShow = clicked.next(),
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toHide = this.active.next(),
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data = {
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options: options,
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newHeader: clickedIsActive && options.collapsible ? $([]) : clicked,
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oldHeader: this.active,
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newContent: clickedIsActive && options.collapsible ? $([]) : toShow,
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oldContent: toHide
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},
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down = this.headers.index( this.active[0] ) > this.headers.index( clicked[0] );
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// when the call to ._toggle() comes after the class changes
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// it causes a very odd bug in IE 8 (see #6720)
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this.active = clickedIsActive ? $([]) : clicked;
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this._toggle( toShow, toHide, data, clickedIsActive, down );
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// switch classes
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active
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.removeClass( "ui-state-active ui-corner-top" )
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.addClass( "ui-state-default ui-corner-all" )
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.children( ".ui-icon" )
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.removeClass( options.icons.headerSelected )
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.addClass( options.icons.header );
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if ( !clickedIsActive ) {
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clicked
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.removeClass( "ui-state-default ui-corner-all" )
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.addClass( "ui-state-active ui-corner-top" )
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.children( ".ui-icon" )
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.removeClass( options.icons.header )
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.addClass( options.icons.headerSelected );
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clicked
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.next()
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.addClass( "ui-accordion-content-active" );
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}
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return;
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},
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_toggle: function( toShow, toHide, data, clickedIsActive, down ) {
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var self = this,
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options = self.options;
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self.toShow = toShow;
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self.toHide = toHide;
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self.data = data;
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var complete = function() {
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if ( !self ) {
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return;
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}
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return self._completed.apply( self, arguments );
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};
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// trigger changestart event
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self._trigger( "changestart", null, self.data );
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// count elements to animate
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self.running = toHide.size() === 0 ? toShow.size() : toHide.size();
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if ( options.animated ) {
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var animOptions = {};
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if ( options.collapsible && clickedIsActive ) {
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animOptions = {
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toShow: $( [] ),
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toHide: toHide,
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complete: complete,
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down: down,
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autoHeight: options.autoHeight || options.fillSpace
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};
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} else {
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animOptions = {
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toShow: toShow,
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toHide: toHide,
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complete: complete,
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down: down,
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autoHeight: options.autoHeight || options.fillSpace
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};
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}
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if ( !options.proxied ) {
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options.proxied = options.animated;
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}
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if ( !options.proxiedDuration ) {
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options.proxiedDuration = options.duration;
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}
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options.animated = $.isFunction( options.proxied ) ?
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options.proxied( animOptions ) :
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options.proxied;
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options.duration = $.isFunction( options.proxiedDuration ) ?
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options.proxiedDuration( animOptions ) :
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options.proxiedDuration;
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var animations = $.ui.accordion.animations,
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duration = options.duration,
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easing = options.animated;
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if ( easing && !animations[ easing ] && !$.easing[ easing ] ) {
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easing = "slide";
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}
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if ( !animations[ easing ] ) {
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animations[ easing ] = function( options ) {
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this.slide( options, {
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easing: easing,
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duration: duration || 700
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});
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};
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}
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animations[ easing ]( animOptions );
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} else {
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if ( options.collapsible && clickedIsActive ) {
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toShow.toggle();
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} else {
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toHide.hide();
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toShow.show();
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}
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complete( true );
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}
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// TODO assert that the blur and focus triggers are really necessary, remove otherwise
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toHide.prev()
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.attr({
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"aria-expanded": "false",
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tabIndex: -1
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})
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.blur();
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toShow.prev()
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.attr({
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"aria-expanded": "true",
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tabIndex: 0
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})
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.focus();
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},
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_completed: function( cancel ) {
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this.running = cancel ? 0 : --this.running;
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if ( this.running ) {
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return;
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}
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if ( this.options.clearStyle ) {
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this.toShow.add( this.toHide ).css({
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height: "",
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overflow: ""
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});
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}
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// other classes are removed before the animation; this one needs to stay until completed
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this.toHide.removeClass( "ui-accordion-content-active" );
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// Work around for rendering bug in IE (#5421)
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this.toHide.parent()[0].className = this.toHide.parent()[0].className;
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this._trigger( "change", null, this.data );
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}
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});
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$.extend( $.ui.accordion, {
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version: "@VERSION",
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animations: {
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slide: function( options, additions ) {
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options = $.extend({
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easing: "swing",
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duration: 300
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}, options, additions );
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if ( !options.toHide.size() ) {
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options.toShow.animate({
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height: "show",
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paddingTop: "show",
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paddingBottom: "show"
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}, options );
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return;
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}
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if ( !options.toShow.size() ) {
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options.toHide.animate({
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height: "hide",
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paddingTop: "hide",
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paddingBottom: "hide"
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}, options );
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return;
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}
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var overflow = options.toShow.css( "overflow" ),
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percentDone = 0,
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showProps = {},
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hideProps = {},
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fxAttrs = [ "height", "paddingTop", "paddingBottom" ],
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originalWidth;
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// fix width before calculating height of hidden element
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var s = options.toShow;
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originalWidth = s[0].style.width;
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s.width( parseInt( s.parent().width(), 10 )
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- parseInt( s.css( "paddingLeft" ), 10 )
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- parseInt( s.css( "paddingRight" ), 10 )
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- ( parseInt( s.css( "borderLeftWidth" ), 10 ) || 0 )
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- ( parseInt( s.css( "borderRightWidth" ), 10) || 0 ) );
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$.each( fxAttrs, function( i, prop ) {
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hideProps[ prop ] = "hide";
|
|
|
|
var parts = ( "" + $.css( options.toShow[0], prop ) ).match( /^([\d+-.]+)(.*)$/ );
|
|
showProps[ prop ] = {
|
|
value: parts[ 1 ],
|
|
unit: parts[ 2 ] || "px"
|
|
};
|
|
});
|
|
options.toShow.css({ height: 0, overflow: "hidden" }).show();
|
|
options.toHide
|
|
.filter( ":hidden" )
|
|
.each( options.complete )
|
|
.end()
|
|
.filter( ":visible" )
|
|
.animate( hideProps, {
|
|
step: function( now, settings ) {
|
|
// only calculate the percent when animating height
|
|
// IE gets very inconsistent results when animating elements
|
|
// with small values, which is common for padding
|
|
if ( settings.prop == "height" ) {
|
|
percentDone = ( settings.end - settings.start === 0 ) ? 0 :
|
|
( settings.now - settings.start ) / ( settings.end - settings.start );
|
|
}
|
|
|
|
options.toShow[ 0 ].style[ settings.prop ] =
|
|
( percentDone * showProps[ settings.prop ].value )
|
|
+ showProps[ settings.prop ].unit;
|
|
},
|
|
duration: options.duration,
|
|
easing: options.easing,
|
|
complete: function() {
|
|
if ( !options.autoHeight ) {
|
|
options.toShow.css( "height", "" );
|
|
}
|
|
options.toShow.css({
|
|
width: originalWidth,
|
|
overflow: overflow
|
|
});
|
|
options.complete();
|
|
}
|
|
});
|
|
},
|
|
bounceslide: function( options ) {
|
|
this.slide( options, {
|
|
easing: options.down ? "easeOutBounce" : "swing",
|
|
duration: options.down ? 1000 : 200
|
|
});
|
|
}
|
|
}
|
|
});
|
|
|
|
})( jQuery );
|