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https://github.com/moparisthebest/mailiverse
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142 lines
4.5 KiB
JavaScript
142 lines
4.5 KiB
JavaScript
/*
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Copyright (c) 2003-2012, CKSource - Frederico Knabben. All rights reserved.
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For licensing, see LICENSE.html or http://ckeditor.com/license
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*/
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/**
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* @file AutoGrow plugin
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*/
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(function(){
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// Actual content height, figured out by appending check the last element's document position.
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function contentHeight( scrollable )
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{
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var overflowY = scrollable.getStyle( 'overflow-y' );
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var doc = scrollable.getDocument();
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// Create a temporary marker element.
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var marker = CKEDITOR.dom.element.createFromHtml( '<span style="margin:0;padding:0;border:0;clear:both;width:1px;height:1px;display:block;">' + ( CKEDITOR.env.webkit ? ' ' : '' ) + '</span>', doc );
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doc[ CKEDITOR.env.ie? 'getBody' : 'getDocumentElement']().append( marker );
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var height = marker.getDocumentPosition( doc ).y + marker.$.offsetHeight;
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marker.remove();
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scrollable.setStyle( 'overflow-y', overflowY );
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return height;
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}
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var resizeEditor = function( editor )
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{
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if ( !editor.window )
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return;
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var doc = editor.document,
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iframe = new CKEDITOR.dom.element( doc.getWindow().$.frameElement ),
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body = doc.getBody(),
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htmlElement = doc.getDocumentElement(),
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currentHeight = editor.window.getViewPaneSize().height,
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// Quirks mode overflows body, standards overflows document element
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scrollable = doc.$.compatMode == 'BackCompat' ? body : htmlElement,
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newHeight = contentHeight( scrollable );
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// Additional space specified by user.
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newHeight += ( editor.config.autoGrow_bottomSpace || 0 );
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var min = editor.config.autoGrow_minHeight != undefined ? editor.config.autoGrow_minHeight : 200,
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max = editor.config.autoGrow_maxHeight || Infinity;
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newHeight = Math.max( newHeight, min );
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newHeight = Math.min( newHeight, max );
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if ( newHeight != currentHeight )
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{
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newHeight = editor.fire( 'autoGrow', { currentHeight : currentHeight, newHeight : newHeight } ).newHeight;
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editor.resize( editor.container.getStyle( 'width' ), newHeight, true );
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}
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if ( scrollable.$.scrollHeight > scrollable.$.clientHeight && newHeight < max )
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scrollable.setStyle( 'overflow-y', 'hidden' );
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else
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scrollable.removeStyle( 'overflow-y' );
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};
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CKEDITOR.plugins.add( 'autogrow',
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{
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init : function( editor )
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{
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editor.addCommand( 'autogrow', { exec : resizeEditor, modes : { wysiwyg:1 }, readOnly: 1, canUndo: false, editorFocus: false } );
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var eventsList = { contentDom:1, key:1, selectionChange:1, insertElement:1, mode:1 };
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editor.config.autoGrow_onStartup && ( eventsList[ 'instanceReady' ] = 1 );
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for ( var eventName in eventsList )
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{
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editor.on( eventName, function( evt )
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{
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var maximize = editor.getCommand( 'maximize' );
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// Some time is required for insertHtml, and it gives other events better performance as well.
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if ( evt.editor.mode == 'wysiwyg' &&
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// Disable autogrow when the editor is maximized .(#6339)
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( !maximize || maximize.state != CKEDITOR.TRISTATE_ON ) )
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{
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setTimeout( function()
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{
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resizeEditor( evt.editor );
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// Second pass to make correction upon
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// the first resize, e.g. scrollbar.
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resizeEditor( evt.editor );
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}, 100 );
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}
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});
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}
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}
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});
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})();
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/**
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* The minimum height that the editor can reach using the AutoGrow feature.
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* @name CKEDITOR.config.autoGrow_minHeight
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* @type Number
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* @default <code>200</code>
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* @since 3.4
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* @example
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* config.autoGrow_minHeight = 300;
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*/
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/**
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* The maximum height that the editor can reach using the AutoGrow feature. Zero means unlimited.
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* @name CKEDITOR.config.autoGrow_maxHeight
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* @type Number
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* @default <code>0</code>
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* @since 3.4
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* @example
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* config.autoGrow_maxHeight = 400;
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*/
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/**
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* Whether to have the auto grow happen on editor creation.
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* @name CKEDITOR.config.autoGrow_onStartup
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* @type Boolean
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* @default false
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* @since 3.6.2
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* @example
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* config.autoGrow_onStartup = true;
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*/
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/**
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* Fired when the AutoGrow plugin is about to change the size of the editor.
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* @name CKEDITOR.editor#autogrow
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* @event
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* @param {Number} data.currentHeight The current height of the editor (before resizing).
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* @param {Number} data.newHeight The new height of the editor (after resizing). It can be changed
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* to determine a different height value to be used instead.
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*/
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/**
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* Extra height in pixel to leave between the bottom boundary of content with document size when auto resizing.
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* @name CKEDITOR.config.autoGrow_bottomSpace
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* @type Number
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* @default 0
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* @since 3.6.2
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*/
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