| 33 | } |
| 34 | |
| 35 | export function wrapNode ( node, destinationIsFixed, overrideClone, appendToBody ) { |
| 36 | const isSvg = node.namespaceURI === svgns; |
| 37 | |
| 38 | const { left, right, top, bottom } = node.getBoundingClientRect(); |
| 39 | const style = window.getComputedStyle( node ); |
| 40 | const clone = cloneNode( node, 0, overrideClone); |
| 41 | |
| 42 | const wrapper = { |
| 43 | node, clone, isSvg, |
| 44 | cx: ( left + right ) / 2, |
| 45 | cy: ( top + bottom ) / 2, |
| 46 | width: right - left, |
| 47 | height: bottom - top, |
| 48 | transform: null, |
| 49 | borderRadius: null |
| 50 | }; |
| 51 | |
| 52 | if ( isSvg ) { |
| 53 | const ctm = node.getScreenCTM(); |
| 54 | wrapper.transform = 'matrix(' + [ ctm.a, ctm.b, ctm.c, ctm.d, ctm.e, ctm.f ].join( ',' ) + ')'; |
| 55 | wrapper.borderRadius = [ 0, 0, 0, 0 ]; |
| 56 | |
| 57 | svg.appendChild( clone ); |
| 58 | } else { |
| 59 | |
| 60 | if ( destinationIsFixed ){ |
| 61 | // position relative to the viewport |
| 62 | clone.style.position = 'fixed'; |
| 63 | clone.style.top = ( top - parseInt( style.marginTop, 10 )) + 'px'; |
| 64 | clone.style.left = ( left - parseInt( style.marginLeft, 10 )) + 'px'; |
| 65 | } |
| 66 | else { |
| 67 | const offsetParent = node.offsetParent; |
| 68 | |
| 69 | if (offsetParent === null || offsetParent === document.body || appendToBody){ // parent is fixed, or I want to append the node to the body |
| 70 | // position relative to the document |
| 71 | const docElem = document.documentElement; |
| 72 | clone.style.position = 'absolute'; |
| 73 | clone.style.top = (top + window.pageYOffset - docElem.clientTop - parseInt( style.marginTop, 10 )) + 'px'; |
| 74 | clone.style.left = (left + window.pageXOffset - docElem.clientLeft - parseInt( style.marginLeft, 10 )) + 'px'; |
| 75 | } |
| 76 | else { |
| 77 | //position relative to the parent |
| 78 | const offsetParentStyle = window.getComputedStyle( offsetParent ); |
| 79 | const offsetParentBcr = offsetParent.getBoundingClientRect(); |
| 80 | |
| 81 | clone.style.position = 'absolute'; |
| 82 | clone.style.top = ( top - parseInt( style.marginTop, 10 ) - ( offsetParentBcr.top - parseInt( offsetParentStyle.marginTop, 10 ) ) ) + 'px'; |
| 83 | clone.style.left = ( left - parseInt( style.marginLeft, 10 ) - ( offsetParentBcr.left - parseInt( offsetParentStyle.marginLeft, 10 ) ) ) + 'px'; |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | wrapper.transform = ''; // TODO...? |
| 88 | wrapper.borderRadius = [ |
| 89 | parseFloat( style.borderTopLeftRadius ), |
| 90 | parseFloat( style.borderTopRightRadius ), |
| 91 | parseFloat( style.borderBottomRightRadius ), |
| 92 | parseFloat( style.borderBottomLeftRadius ) |