[1575] | 1 | /*
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| 2 | * FCKeditor - The text editor for Internet - http://www.fckeditor.net
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| 3 | * Copyright (C) 2003-2009 Frederico Caldeira Knabben
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| 4 | *
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| 5 | * == BEGIN LICENSE ==
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| 6 | *
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| 7 | * Licensed under the terms of any of the following licenses at your
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| 8 | * choice:
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| 9 | *
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| 10 | * - GNU General Public License Version 2 or later (the "GPL")
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| 11 | * http://www.gnu.org/licenses/gpl.html
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| 12 | *
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| 13 | * - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
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| 14 | * http://www.gnu.org/licenses/lgpl.html
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| 15 | *
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| 16 | * - Mozilla Public License Version 1.1 or later (the "MPL")
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| 17 | * http://www.mozilla.org/MPL/MPL-1.1.html
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| 18 | *
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| 19 | * == END LICENSE ==
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| 20 | *
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| 21 | * Plugin: automatically resizes the editor until a configurable maximun
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| 22 | * height (FCKConfig.AutoGrowMax), based on its contents.
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| 23 | */
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| 24 |
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| 25 | var FCKAutoGrow = {
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| 26 | MIN_HEIGHT : window.frameElement.offsetHeight,
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| 27 |
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| 28 | Check : function()
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| 29 | {
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| 30 | var delta = FCKAutoGrow.GetHeightDelta() ;
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| 31 | if ( delta != 0 )
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| 32 | {
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| 33 | var newHeight = window.frameElement.offsetHeight + delta ;
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| 34 |
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| 35 | newHeight = FCKAutoGrow.GetEffectiveHeight( newHeight ) ;
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| 36 |
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| 37 | if ( newHeight != window.frameElement.height )
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| 38 | {
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| 39 | window.frameElement.style.height = newHeight + "px" ;
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| 40 |
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| 41 | // Gecko browsers use an onresize handler to update the innermost
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| 42 | // IFRAME's height. If the document is modified before the onresize
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| 43 | // is triggered, the plugin will miscalculate the new height. Thus,
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| 44 | // forcibly trigger onresize. #1336
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| 45 | if ( typeof window.onresize == 'function' )
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| 46 | {
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| 47 | window.onresize() ;
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| 48 | }
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| 49 | }
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| 50 | }
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| 51 | },
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| 52 |
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| 53 | CheckEditorStatus : function( sender, status )
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| 54 | {
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| 55 | if ( status == FCK_STATUS_COMPLETE )
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| 56 | FCKAutoGrow.Check() ;
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| 57 | },
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| 58 |
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| 59 | GetEffectiveHeight : function( height )
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| 60 | {
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| 61 | if ( height < FCKAutoGrow.MIN_HEIGHT )
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| 62 | height = FCKAutoGrow.MIN_HEIGHT;
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| 63 | else
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| 64 | {
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| 65 | var max = FCKConfig.AutoGrowMax;
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| 66 | if ( max && max > 0 && height > max )
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| 67 | height = max;
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| 68 | }
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| 69 |
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| 70 | return height;
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| 71 | },
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| 72 |
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| 73 | GetHeightDelta : function()
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| 74 | {
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| 75 | var oInnerDoc = FCK.EditorDocument ;
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| 76 |
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| 77 | var iFrameHeight ;
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| 78 | var iInnerHeight ;
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| 79 |
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| 80 | if ( FCKBrowserInfo.IsIE )
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| 81 | {
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| 82 | iFrameHeight = FCK.EditorWindow.frameElement.offsetHeight ;
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| 83 | iInnerHeight = oInnerDoc.body.scrollHeight ;
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| 84 | }
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| 85 | else
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| 86 | {
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| 87 | iFrameHeight = FCK.EditorWindow.innerHeight ;
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| 88 | iInnerHeight = oInnerDoc.body.offsetHeight +
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| 89 | ( parseInt( FCKDomTools.GetCurrentElementStyle( oInnerDoc.body, 'margin-top' ), 10 ) || 0 ) +
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| 90 | ( parseInt( FCKDomTools.GetCurrentElementStyle( oInnerDoc.body, 'margin-bottom' ), 10 ) || 0 ) ;
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| 91 | }
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| 92 |
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| 93 | return iInnerHeight - iFrameHeight ;
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| 94 | },
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| 95 |
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| 96 | SetListeners : function()
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| 97 | {
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| 98 | if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG )
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| 99 | return ;
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| 100 |
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| 101 | FCK.EditorWindow.attachEvent( 'onscroll', FCKAutoGrow.Check ) ;
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| 102 | FCK.EditorDocument.attachEvent( 'onkeyup', FCKAutoGrow.Check ) ;
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| 103 | }
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| 104 | };
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| 105 |
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| 106 | FCK.AttachToOnSelectionChange( FCKAutoGrow.Check ) ;
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| 107 |
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| 108 | if ( FCKBrowserInfo.IsIE )
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| 109 | FCK.Events.AttachEvent( 'OnAfterSetHTML', FCKAutoGrow.SetListeners ) ;
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| 110 |
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| 111 | FCK.Events.AttachEvent( 'OnStatusChange', FCKAutoGrow.CheckEditorStatus ) ;
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