--- a/busui/js/jquery.ui.position.js +++ b/busui/js/jquery.ui.position.js @@ -1,1 +1,252 @@ - +/* + * jQuery UI Position @VERSION + * + * Copyright 2011, 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/, + verticalPositions = /top|center|bottom/, + center = "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 ), + targetElem = target[0], + collision = ( options.collision || "flip" ).split( " " ), + offset = options.offset ? options.offset.split( " " ) : [ 0, 0 ], + targetWidth, + targetHeight, + basePosition; + + if ( targetElem.nodeType === 9 ) { + targetWidth = target.width(); + targetHeight = target.height(); + basePosition = { top: 0, left: 0 }; + } else if ( $.isWindow( targetElem ) ) { + targetWidth = target.width(); + targetHeight = target.height(); + basePosition = { top: target.scrollTop(), left: target.scrollLeft() }; + } else if ( targetElem.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( [center] ) : + verticalPositions.test( pos[0] ) ? + [ center ].concat( pos ) : + [ center, center ]; + } + pos[ 0 ] = horizontalPositions.test( pos[0] ) ? pos[ 0 ] : center; + pos[ 1 ] = verticalPositions.test( pos[1] ) ? pos[ 1 ] : center; + 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] === center ) { + basePosition.left += targetWidth / 2; + } + + if ( options.at[1] === "bottom" ) { + basePosition.top += targetHeight; + } else if ( options.at[1] === center ) { + 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(), + marginLeft = parseInt( $.curCSS( this, "marginLeft", true ) ) || 0, + marginTop = parseInt( $.curCSS( this, "marginTop", true ) ) || 0, + collisionWidth = elemWidth + marginLeft + + ( parseInt( $.curCSS( this, "marginRight", true ) ) || 0 ), + collisionHeight = elemHeight + marginTop + + ( parseInt( $.curCSS( this, "marginBottom", true ) ) || 0 ), + position = $.extend( {}, basePosition ), + collisionPosition; + + if ( options.my[0] === "right" ) { + position.left -= elemWidth; + } else if ( options.my[0] === center ) { + position.left -= elemWidth / 2; + } + + if ( options.my[1] === "bottom" ) { + position.top -= elemHeight; + } else if ( options.my[1] === center ) { + position.top -= elemHeight / 2; + } + + // prevent fractions (see #5280) + position.left = Math.round( position.left ); + position.top = Math.round( position.top ); + + collisionPosition = { + left: position.left - marginLeft, + top: position.top - marginTop + }; + + $.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, + collisionPosition: collisionPosition, + collisionWidth: collisionWidth, + collisionHeight: collisionHeight, + 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 = data.collisionPosition.left + data.collisionWidth - win.width() - win.scrollLeft(); + position.left = over > 0 ? position.left - over : Math.max( position.left - data.collisionPosition.left, position.left ); + }, + top: function( position, data ) { + var win = $( window ), + over = data.collisionPosition.top + data.collisionHeight - win.height() - win.scrollTop(); + position.top = over > 0 ? position.top - over : Math.max( position.top - data.collisionPosition.top, position.top ); + } + }, + + flip: { + left: function( position, data ) { + if ( data.at[0] === center ) { + return; + } + var win = $( window ), + over = data.collisionPosition.left + data.collisionWidth - win.width() - win.scrollLeft(), + myOffset = data.my[ 0 ] === "left" ? + -data.elemWidth : + data.my[ 0 ] === "right" ? + data.elemWidth : + 0, + atOffset = data.at[ 0 ] === "left" ? + data.targetWidth : + -data.targetWidth, + offset = -2 * data.offset[ 0 ]; + position.left += data.collisionPosition.left < 0 ? + myOffset + atOffset + offset : + over > 0 ? + myOffset + atOffset + offset : + 0; + }, + top: function( position, data ) { + if ( data.at[1] === center ) { + return; + } + var win = $( window ), + over = data.collisionPosition.top + data.collisionHeight - win.height() - win.scrollTop(), + myOffset = data.my[ 1 ] === "top" ? + -data.elemHeight : + data.my[ 1 ] === "bottom" ? + data.elemHeight : + 0, + atOffset = data.at[ 1 ] === "top" ? + data.targetHeight : + -data.targetHeight, + offset = -2 * data.offset[ 1 ]; + position.top += data.collisionPosition.top < 0 ? + myOffset + atOffset + offset : + over > 0 ? + myOffset + atOffset + offset : + 0; + } + } +}; + +// offset setter from jQuery 1.4 +if ( !$.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 )); +