Team:TU Delft/files/jquery.ui.position.js

From 2010.igem.org

/*

* jQuery UI Position 1.8.4
*
* Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*
* http://docs.jquery.com/UI/Position
*/

(function( $, undefined ) {

$.ui = $.ui || {};

var horizontalPositions = /left|center|right/, horizontalDefault = "center", verticalPositions = /top|center|bottom/, verticalDefault = "center", _position = $.fn.position, _offset = $.fn.offset;

$.fn.position = function( options ) { if ( !options || !options.of ) { return _position.apply( this, arguments ); }

// make a copy, we don't want to modify arguments options = $.extend( {}, options );

var target = $( options.of ), collision = ( options.collision || "flip" ).split( " " ), offset = options.offset ? options.offset.split( " " ) : [ 0, 0 ], targetWidth, targetHeight, basePosition;

if ( options.of.nodeType === 9 ) { targetWidth = target.width(); targetHeight = target.height(); basePosition = { top: 0, left: 0 }; } else if ( options.of.scrollTo && options.of.document ) { targetWidth = target.width(); targetHeight = target.height(); basePosition = { top: target.scrollTop(), left: target.scrollLeft() }; } else if ( options.of.preventDefault ) { // force left top to allow flipping options.at = "left top"; targetWidth = targetHeight = 0; basePosition = { top: options.of.pageY, left: options.of.pageX }; } else { targetWidth = target.outerWidth(); targetHeight = target.outerHeight(); basePosition = target.offset(); }

// force my and at to have valid horizontal and veritcal positions // if a value is missing or invalid, it will be converted to center $.each( [ "my", "at" ], function() { var pos = ( options[this] || "" ).split( " " ); if ( pos.length === 1) { pos = horizontalPositions.test( pos[0] ) ? pos.concat( [verticalDefault] ) : verticalPositions.test( pos[0] ) ? [ horizontalDefault ].concat( pos ) : [ horizontalDefault, verticalDefault ]; } pos[ 0 ] = horizontalPositions.test( pos[0] ) ? pos[ 0 ] : horizontalDefault; pos[ 1 ] = verticalPositions.test( pos[1] ) ? pos[ 1 ] : verticalDefault; options[ this ] = pos; });

// normalize collision option if ( collision.length === 1 ) { collision[ 1 ] = collision[ 0 ]; }

// normalize offset option offset[ 0 ] = parseInt( offset[0], 10 ) || 0; if ( offset.length === 1 ) { offset[ 1 ] = offset[ 0 ]; } offset[ 1 ] = parseInt( offset[1], 10 ) || 0;

if ( options.at[0] === "right" ) { basePosition.left += targetWidth; } else if (options.at[0] === horizontalDefault ) { basePosition.left += targetWidth / 2; }

if ( options.at[1] === "bottom" ) { basePosition.top += targetHeight; } else if ( options.at[1] === verticalDefault ) { basePosition.top += targetHeight / 2; }

basePosition.left += offset[ 0 ]; basePosition.top += offset[ 1 ];

return this.each(function() { var elem = $( this ), elemWidth = elem.outerWidth(), elemHeight = elem.outerHeight(), position = $.extend( {}, basePosition );

if ( options.my[0] === "right" ) { position.left -= elemWidth; } else if ( options.my[0] === horizontalDefault ) { position.left -= elemWidth / 2; }

if ( options.my[1] === "bottom" ) { position.top -= elemHeight; } else if ( options.my[1] === verticalDefault ) { position.top -= elemHeight / 2; }

// prevent fractions (see #5280) position.left = parseInt( position.left ); position.top = parseInt( position.top );

$.each( [ "left", "top" ], function( i, dir ) { if ( $.ui.position[ collision[i] ] ) { $.ui.position[ collision[i] ][ dir ]( position, { targetWidth: targetWidth, targetHeight: targetHeight, elemWidth: elemWidth, elemHeight: elemHeight, offset: offset, my: options.my, at: options.at }); } });

if ( $.fn.bgiframe ) { elem.bgiframe(); } elem.offset( $.extend( position, { using: options.using } ) ); }); };

$.ui.position = { fit: { left: function( position, data ) { var win = $( window ), over = position.left + data.elemWidth - win.width() - win.scrollLeft(); position.left = over > 0 ? position.left - over : Math.max( 0, position.left ); }, top: function( position, data ) { var win = $( window ), over = position.top + data.elemHeight - win.height() - win.scrollTop(); position.top = over > 0 ? position.top - over : Math.max( 0, position.top ); } },

flip: { left: function( position, data ) { if ( data.at[0] === "center" ) { return; } var win = $( window ), over = position.left + data.elemWidth - win.width() - win.scrollLeft(), myOffset = data.my[ 0 ] === "left" ? -data.elemWidth : data.my[ 0 ] === "right" ? data.elemWidth : 0, offset = -2 * data.offset[ 0 ]; position.left += position.left < 0 ? myOffset + data.targetWidth + offset : over > 0 ? myOffset - data.targetWidth + offset : 0; }, top: function( position, data ) { if ( data.at[1] === "center" ) { return; } var win = $( window ), over = position.top + data.elemHeight - win.height() - win.scrollTop(), myOffset = data.my[ 1 ] === "top" ? -data.elemHeight : data.my[ 1 ] === "bottom" ? data.elemHeight : 0, atOffset = data.at[ 1 ] === "top" ? data.targetHeight : -data.targetHeight, offset = -2 * data.offset[ 1 ]; position.top += position.top < 0 ? myOffset + data.targetHeight + offset : over > 0 ? myOffset + atOffset + offset : 0; } } };

// offset setter from jQuery 1.4 if ( !$.offset.setOffset ) { $.offset.setOffset = function( elem, options ) { // set position first, in-case top/left are set even on static elem if ( /static/.test( $.curCSS( elem, "position" ) ) ) { elem.style.position = "relative"; } var curElem = $( elem ), curOffset = curElem.offset(), curTop = parseInt( $.curCSS( elem, "top", true ), 10 ) || 0, curLeft = parseInt( $.curCSS( elem, "left", true ), 10) || 0, props = { top: (options.top - curOffset.top) + curTop, left: (options.left - curOffset.left) + curLeft };

if ( 'using' in options ) { options.using.call( elem, props ); } else { curElem.css( props ); } };

$.fn.offset = function( options ) { var elem = this[ 0 ]; if ( !elem || !elem.ownerDocument ) { return null; } if ( options ) { return this.each(function() { $.offset.setOffset( this, options ); }); } return _offset.call( this ); }; }

}( jQuery ));