resources/lib/jquery.ui/jquery.ui.tooltip.js
/*!
* jQuery UI Tooltip 1.9.2
* http://jqueryui.com
*
* Copyright 2012 jQuery Foundation and other contributors
* Released under the MIT license.
* http://jquery.org/license
*
* http://api.jqueryui.com/tooltip/
*
* Depends:
* jquery.ui.core.js
* jquery.ui.widget.js
* jquery.ui.position.js
*/
(function( $ ) {
var increments = 0;
function addDescribedBy( elem, id ) {
var describedby = (elem.attr( "aria-describedby" ) || "").split( /\s+/ );
describedby.push( id );
elem
.data( "ui-tooltip-id", id )
.attr( "aria-describedby", describedby.join( " " ).trim() );
}
function removeDescribedBy( elem ) {
var id = elem.data( "ui-tooltip-id" ),
describedby = (elem.attr( "aria-describedby" ) || "").split( /\s+/ ),
index = $.inArray( id, describedby );
if ( index !== -1 ) {
describedby.splice( index, 1 );
}
elem.removeData( "ui-tooltip-id" );
describedby = describedby.join( " " ).trim();
if ( describedby ) {
elem.attr( "aria-describedby", describedby );
} else {
elem.removeAttr( "aria-describedby" );
}
}
$.widget( "ui.tooltip", {
version: "1.9.2",
options: {
content: function() {
return $( this ).attr( "title" );
},
hide: true,
// Disabled elements have inconsistent behavior across browsers (#8661)
items: "[title]:not([disabled])",
position: {
my: "left top+15",
at: "left bottom",
collision: "flipfit flip"
},
show: true,
tooltipClass: null,
track: false,
// callbacks
close: null,
open: null
},
_create: function() {
this._on({
mouseover: "open",
focusin: "open"
});
// IDs of generated tooltips, needed for destroy
this.tooltips = {};
// IDs of parent tooltips where we removed the title attribute
this.parents = {};
if ( this.options.disabled ) {
this._disable();
}
},
_setOption: function( key, value ) {
var that = this;
if ( key === "disabled" ) {
this[ value ? "_disable" : "_enable" ]();
this.options[ key ] = value;
// disable element style changes
return;
}
this._super( key, value );
if ( key === "content" ) {
$.each( this.tooltips, function( id, element ) {
that._updateContent( element );
});
}
},
_disable: function() {
var that = this;
// close open tooltips
$.each( this.tooltips, function( id, element ) {
var event = $.Event( "blur" );
event.target = event.currentTarget = element[0];
that.close( event, true );
});
// remove title attributes to prevent native tooltips
this.element.find( this.options.items ).addBack().each(function() {
var element = $( this );
if ( element.is( "[title]" ) ) {
element
.data( "ui-tooltip-title", element.attr( "title" ) )
.attr( "title", "" );
}
});
},
_enable: function() {
// restore title attributes
this.element.find( this.options.items ).addBack().each(function() {
var element = $( this );
if ( element.data( "ui-tooltip-title" ) ) {
element.attr( "title", element.data( "ui-tooltip-title" ) );
}
});
},
open: function( event ) {
var that = this,
target = $( event ? event.target : this.element )
// we need closest here due to mouseover bubbling,
// but always pointing at the same event target
.closest( this.options.items );
// No element to show a tooltip for or the tooltip is already open
if ( !target.length || target.data( "ui-tooltip-id" ) ) {
return;
}
if ( target.attr( "title" ) ) {
target.data( "ui-tooltip-title", target.attr( "title" ) );
}
target.data( "ui-tooltip-open", true );
// kill parent tooltips, custom or native, for hover
if ( event && event.type === "mouseover" ) {
target.parents().each(function() {
var parent = $( this ),
blurEvent;
if ( parent.data( "ui-tooltip-open" ) ) {
blurEvent = $.Event( "blur" );
blurEvent.target = blurEvent.currentTarget = this;
that.close( blurEvent, true );
}
if ( parent.attr( "title" ) ) {
parent.uniqueId();
that.parents[ this.id ] = {
element: this,
title: parent.attr( "title" )
};
parent.attr( "title", "" );
}
});
}
this._updateContent( target, event );
},
_updateContent: function( target, event ) {
var content,
contentOption = this.options.content,
that = this,
eventType = event ? event.type : null;
if ( typeof contentOption === "string" ) {
return this._open( event, target, contentOption );
}
content = contentOption.call( target[0], function( response ) {
// ignore async response if tooltip was closed already
if ( !target.data( "ui-tooltip-open" ) ) {
return;
}
// IE may instantly serve a cached response for ajax requests
// delay this call to _open so the other call to _open runs first
that._delay(function() {
// jQuery creates a special event for focusin when it doesn't
// exist natively. To improve performance, the native event
// object is reused and the type is changed. Therefore, we can't
// rely on the type being correct after the event finished
// bubbling, so we set it back to the previous value. (#8740)
if ( event ) {
event.type = eventType;
}
this._open( event, target, response );
});
});
if ( content ) {
this._open( event, target, content );
}
},
_open: function( event, target, content ) {
var tooltip, events, delayedShow,
positionOption = $.extend( {}, this.options.position );
if ( !content ) {
return;
}
// Content can be updated multiple times. If the tooltip already
// exists, then just update the content and bail.
tooltip = this._find( target );
if ( tooltip.length ) {
tooltip.find( ".ui-tooltip-content" ).html( content );
return;
}
// if we have a title, clear it to prevent the native tooltip
// we have to check first to avoid defining a title if none exists
// (we don't want to cause an element to start matching [title])
//
// We use removeAttr only for key events, to allow IE to export the correct
// accessible attributes. For mouse events, set to empty string to avoid
// native tooltip showing up (happens only when removing inside mouseover).
if ( target.is( "[title]" ) ) {
if ( event && event.type === "mouseover" ) {
target.attr( "title", "" );
} else {
target.removeAttr( "title" );
}
}
tooltip = this._tooltip( target );
addDescribedBy( target, tooltip.attr( "id" ) );
tooltip.find( ".ui-tooltip-content" ).html( content );
function position( event ) {
positionOption.of = event;
if ( tooltip.is( ":hidden" ) ) {
return;
}
tooltip.position( positionOption );
}
if ( this.options.track && event && /^mouse/.test( event.type ) ) {
this._on( this.document, {
mousemove: position
});
// trigger once to override element-relative positioning
position( event );
} else {
tooltip.position( $.extend({
of: target
}, this.options.position ) );
}
tooltip.hide();
this._show( tooltip, this.options.show );
// Handle tracking tooltips that are shown with a delay (#8644). As soon
// as the tooltip is visible, position the tooltip using the most recent
// event.
if ( this.options.show && this.options.show.delay ) {
delayedShow = setInterval(function() {
if ( tooltip.is( ":visible" ) ) {
position( positionOption.of );
clearInterval( delayedShow );
}
}, $.fx.interval );
}
this._trigger( "open", event, { tooltip: tooltip } );
events = {
keyup: function( event ) {
if ( event.keyCode === $.ui.keyCode.ESCAPE ) {
var fakeEvent = $.Event(event);
fakeEvent.currentTarget = target[0];
this.close( fakeEvent, true );
}
},
remove: function() {
this._removeTooltip( tooltip );
}
};
if ( !event || event.type === "mouseover" ) {
events.mouseleave = "close";
}
if ( !event || event.type === "focusin" ) {
events.focusout = "close";
}
this._on( true, target, events );
},
close: function( event ) {
var that = this,
target = $( event ? event.currentTarget : this.element ),
tooltip = this._find( target );
// disabling closes the tooltip, so we need to track when we're closing
// to avoid an infinite loop in case the tooltip becomes disabled on close
if ( this.closing ) {
return;
}
// only set title if we had one before (see comment in _open())
if ( target.data( "ui-tooltip-title" ) ) {
target.attr( "title", target.data( "ui-tooltip-title" ) );
}
removeDescribedBy( target );
tooltip.stop( true );
this._hide( tooltip, this.options.hide, function() {
that._removeTooltip( $( this ) );
});
target.removeData( "ui-tooltip-open" );
this._off( target, "mouseleave focusout keyup" );
// Remove 'remove' binding only on delegated targets
if ( target[0] !== this.element[0] ) {
this._off( target, "remove" );
}
this._off( this.document, "mousemove" );
if ( event && event.type === "mouseleave" ) {
$.each( this.parents, function( id, parent ) {
$( parent.element ).attr( "title", parent.title );
delete that.parents[ id ];
});
}
this.closing = true;
this._trigger( "close", event, { tooltip: tooltip } );
this.closing = false;
},
_tooltip: function( element ) {
var id = "ui-tooltip-" + increments++,
tooltip = $( "<div>" )
.attr({
id: id,
role: "tooltip"
})
.addClass( "ui-tooltip ui-widget ui-corner-all ui-widget-content " +
( this.options.tooltipClass || "" ) );
$( "<div>" )
.addClass( "ui-tooltip-content" )
.appendTo( tooltip );
tooltip.appendTo( this.document[0].body );
if ( $.fn.bgiframe ) {
tooltip.bgiframe();
}
this.tooltips[ id ] = element;
return tooltip;
},
_find: function( target ) {
var id = target.data( "ui-tooltip-id" );
return id ? $( "#" + id ) : $();
},
_removeTooltip: function( tooltip ) {
tooltip.remove();
delete this.tooltips[ tooltip.attr( "id" ) ];
},
_destroy: function() {
var that = this;
// close open tooltips
$.each( this.tooltips, function( id, element ) {
// Delegate to close method to handle common cleanup
var event = $.Event( "blur" );
event.target = event.currentTarget = element[0];
that.close( event, true );
// Remove immediately; destroying an open tooltip doesn't use the
// hide animation
$( "#" + id ).remove();
// Restore the title
if ( element.data( "ui-tooltip-title" ) ) {
element.attr( "title", element.data( "ui-tooltip-title" ) );
element.removeData( "ui-tooltip-title" );
}
});
}
});
}( jQuery ) );