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Diffstat (limited to 'bower_components/jquery/src/offset.js')
| -rw-r--r-- | bower_components/jquery/src/offset.js | 204 | 
1 files changed, 204 insertions, 0 deletions
| diff --git a/bower_components/jquery/src/offset.js b/bower_components/jquery/src/offset.js new file mode 100644 index 0000000..dc7bb95 --- /dev/null +++ b/bower_components/jquery/src/offset.js @@ -0,0 +1,204 @@ +define([ +	"./core", +	"./var/strundefined", +	"./core/access", +	"./css/var/rnumnonpx", +	"./css/curCSS", +	"./css/addGetHookIf", +	"./css/support", + +	"./core/init", +	"./css", +	"./selector" // contains +], function( jQuery, strundefined, access, rnumnonpx, curCSS, addGetHookIf, support ) { + +var docElem = window.document.documentElement; + +/** + * Gets a window from an element + */ +function getWindow( elem ) { +	return jQuery.isWindow( elem ) ? elem : elem.nodeType === 9 && elem.defaultView; +} + +jQuery.offset = { +	setOffset: function( elem, options, i ) { +		var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition, +			position = jQuery.css( elem, "position" ), +			curElem = jQuery( elem ), +			props = {}; + +		// Set position first, in-case top/left are set even on static elem +		if ( position === "static" ) { +			elem.style.position = "relative"; +		} + +		curOffset = curElem.offset(); +		curCSSTop = jQuery.css( elem, "top" ); +		curCSSLeft = jQuery.css( elem, "left" ); +		calculatePosition = ( position === "absolute" || position === "fixed" ) && +			( curCSSTop + curCSSLeft ).indexOf("auto") > -1; + +		// Need to be able to calculate position if either top or left is auto and position is either absolute or fixed +		if ( calculatePosition ) { +			curPosition = curElem.position(); +			curTop = curPosition.top; +			curLeft = curPosition.left; + +		} else { +			curTop = parseFloat( curCSSTop ) || 0; +			curLeft = parseFloat( curCSSLeft ) || 0; +		} + +		if ( jQuery.isFunction( options ) ) { +			options = options.call( elem, i, curOffset ); +		} + +		if ( options.top != null ) { +			props.top = ( options.top - curOffset.top ) + curTop; +		} +		if ( options.left != null ) { +			props.left = ( options.left - curOffset.left ) + curLeft; +		} + +		if ( "using" in options ) { +			options.using.call( elem, props ); + +		} else { +			curElem.css( props ); +		} +	} +}; + +jQuery.fn.extend({ +	offset: function( options ) { +		if ( arguments.length ) { +			return options === undefined ? +				this : +				this.each(function( i ) { +					jQuery.offset.setOffset( this, options, i ); +				}); +		} + +		var docElem, win, +			elem = this[ 0 ], +			box = { top: 0, left: 0 }, +			doc = elem && elem.ownerDocument; + +		if ( !doc ) { +			return; +		} + +		docElem = doc.documentElement; + +		// Make sure it's not a disconnected DOM node +		if ( !jQuery.contains( docElem, elem ) ) { +			return box; +		} + +		// If we don't have gBCR, just use 0,0 rather than error +		// BlackBerry 5, iOS 3 (original iPhone) +		if ( typeof elem.getBoundingClientRect !== strundefined ) { +			box = elem.getBoundingClientRect(); +		} +		win = getWindow( doc ); +		return { +			top: box.top + win.pageYOffset - docElem.clientTop, +			left: box.left + win.pageXOffset - docElem.clientLeft +		}; +	}, + +	position: function() { +		if ( !this[ 0 ] ) { +			return; +		} + +		var offsetParent, offset, +			elem = this[ 0 ], +			parentOffset = { top: 0, left: 0 }; + +		// Fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is its only offset parent +		if ( jQuery.css( elem, "position" ) === "fixed" ) { +			// We assume that getBoundingClientRect is available when computed position is fixed +			offset = elem.getBoundingClientRect(); + +		} else { +			// Get *real* offsetParent +			offsetParent = this.offsetParent(); + +			// Get correct offsets +			offset = this.offset(); +			if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) { +				parentOffset = offsetParent.offset(); +			} + +			// Add offsetParent borders +			parentOffset.top += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true ); +			parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true ); +		} + +		// Subtract parent offsets and element margins +		return { +			top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ), +			left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true ) +		}; +	}, + +	offsetParent: function() { +		return this.map(function() { +			var offsetParent = this.offsetParent || docElem; + +			while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) && jQuery.css( offsetParent, "position" ) === "static" ) ) { +				offsetParent = offsetParent.offsetParent; +			} + +			return offsetParent || docElem; +		}); +	} +}); + +// Create scrollLeft and scrollTop methods +jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) { +	var top = "pageYOffset" === prop; + +	jQuery.fn[ method ] = function( val ) { +		return access( this, function( elem, method, val ) { +			var win = getWindow( elem ); + +			if ( val === undefined ) { +				return win ? win[ prop ] : elem[ method ]; +			} + +			if ( win ) { +				win.scrollTo( +					!top ? val : window.pageXOffset, +					top ? val : window.pageYOffset +				); + +			} else { +				elem[ method ] = val; +			} +		}, method, val, arguments.length, null ); +	}; +}); + +// Add the top/left cssHooks using jQuery.fn.position +// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084 +// getComputedStyle returns percent when specified for top/left/bottom/right +// rather than make the css module depend on the offset module, we just check for it here +jQuery.each( [ "top", "left" ], function( i, prop ) { +	jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition, +		function( elem, computed ) { +			if ( computed ) { +				computed = curCSS( elem, prop ); +				// if curCSS returns percentage, fallback to offset +				return rnumnonpx.test( computed ) ? +					jQuery( elem ).position()[ prop ] + "px" : +					computed; +			} +		} +	); +}); + +return jQuery; +}); | 
