| 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; |
| } |
| |
| // Support: BlackBerry 5, iOS 3 (original iPhone) |
| // If we don't have gBCR, just use 0,0 rather than error |
| 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" ) { |
| // Assume getBoundingClientRect is there 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 ); |
| }; |
| }); |
| |
| // Support: Safari<7+, Chrome<37+ |
| // Add the top/left cssHooks using jQuery.fn.position |
| // Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084 |
| // Blink bug: https://code.google.com/p/chromium/issues/detail?id=229280 |
| // getComputedStyle returns percent when specified for top/left/bottom/right; |
| // rather than make the css module depend on the offset module, 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; |
| }); |