scratch – Blame information for rev 125
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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 125 | office | 1 | define([ |
| 2 | "../core", |
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| 3 | "../manipulation" // appendTo |
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| 4 | ], function( jQuery ) { |
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| 5 | |||
| 6 | var iframe, |
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| 7 | elemdisplay = {}; |
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| 8 | |||
| 9 | /** |
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| 10 | * Retrieve the actual display of a element |
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| 11 | * @param {String} name nodeName of the element |
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| 12 | * @param {Object} doc Document object |
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| 13 | */ |
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| 14 | // Called only from within defaultDisplay |
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| 15 | function actualDisplay( name, doc ) { |
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| 16 | var style, |
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| 17 | elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ), |
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| 18 | |||
| 19 | // getDefaultComputedStyle might be reliably used only on attached element |
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| 20 | display = window.getDefaultComputedStyle && ( style = window.getDefaultComputedStyle( elem[ 0 ] ) ) ? |
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| 21 | |||
| 22 | // Use of this method is a temporary fix (more like optimization) until something better comes along, |
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| 23 | // since it was removed from specification and supported only in FF |
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| 24 | style.display : jQuery.css( elem[ 0 ], "display" ); |
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| 25 | |||
| 26 | // We don't have any data stored on the element, |
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| 27 | // so use "detach" method as fast way to get rid of the element |
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| 28 | elem.detach(); |
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| 29 | |||
| 30 | return display; |
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| 31 | } |
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| 32 | |||
| 33 | /** |
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| 34 | * Try to determine the default display value of an element |
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| 35 | * @param {String} nodeName |
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| 36 | */ |
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| 37 | function defaultDisplay( nodeName ) { |
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| 38 | var doc = document, |
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| 39 | display = elemdisplay[ nodeName ]; |
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| 40 | |||
| 41 | if ( !display ) { |
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| 42 | display = actualDisplay( nodeName, doc ); |
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| 43 | |||
| 44 | // If the simple way fails, read from inside an iframe |
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| 45 | if ( display === "none" || !display ) { |
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| 46 | |||
| 47 | // Use the already-created iframe if possible |
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| 48 | iframe = (iframe || jQuery( "<iframe frameborder='0' width='0' height='0'/>" )).appendTo( doc.documentElement ); |
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| 49 | |||
| 50 | // Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse |
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| 51 | doc = iframe[ 0 ].contentDocument; |
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| 52 | |||
| 53 | // Support: IE |
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| 54 | doc.write(); |
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| 55 | doc.close(); |
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| 56 | |||
| 57 | display = actualDisplay( nodeName, doc ); |
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| 58 | iframe.detach(); |
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| 59 | } |
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| 60 | |||
| 61 | // Store the correct default display |
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| 62 | elemdisplay[ nodeName ] = display; |
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| 63 | } |
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| 64 | |||
| 65 | return display; |
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| 66 | } |
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| 67 | |||
| 68 | return defaultDisplay; |
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| 69 | |||
| 70 | }); |