source: sandbox/3.0/phpgwapi/js/ckeditor/_source/plugins/resize/plugin.js @ 2862

/*
Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/

CKEDITOR.plugins.add( 'resize',
{
        init : function( editor )
        {
                var config = editor.config;

                if ( config.resize_enabled )
                {
                        var container = null;
                        var origin, startSize;

                        function dragHandler( evt )
                        {
                                var dx = evt.data.$.screenX - origin.x;
                                var dy = evt.data.$.screenY - origin.y;
                                var internalWidth = startSize.width + dx * ( editor.lang.dir == 'rtl' ? -1 : 1 );
                                var internalHeight = startSize.height + dy;

                                editor.resize( Math.max( config.resize_minWidth, Math.min( internalWidth, config.resize_maxWidth ) ),
                                                Math.max( config.resize_minHeight, Math.min( internalHeight, config.resize_maxHeight ) ) );
                        }

                        function dragEndHandler ( evt )
                        {
                                CKEDITOR.document.removeListener( 'mousemove', dragHandler );
                                CKEDITOR.document.removeListener( 'mouseup', dragEndHandler );

                                if ( editor.document )
                                {
                                        editor.document.removeListener( 'mousemove', dragHandler );
                                        editor.document.removeListener( 'mouseup', dragEndHandler );
                                }
                        }

                        var mouseDownFn = CKEDITOR.tools.addFunction( function( $event )
                                {
                                        if ( !container )
                                                container = editor.getResizable();

                                        startSize = { width : container.$.offsetWidth || 0, height : container.$.offsetHeight || 0 };
                                        origin = { x : $event.screenX, y : $event.screenY };

                                        CKEDITOR.document.on( 'mousemove', dragHandler );
                                        CKEDITOR.document.on( 'mouseup', dragEndHandler );

                                        if ( editor.document )
                                        {
                                                editor.document.on( 'mousemove', dragHandler );
                                                editor.document.on( 'mouseup', dragEndHandler );
                                        }
                                });

                        editor.on( 'destroy', function() { CKEDITOR.tools.removeFunction( mouseDownFn ); } );

                        editor.on( 'themeSpace', function( event )
                                {
                                        if ( event.data.space == 'bottom' )
                                        {
                                                event.data.html += '<div class="cke_resizer"' +
                                                        ' title="' + CKEDITOR.tools.htmlEncode( editor.lang.resize ) + '"' +
                                                        ' onmousedown="CKEDITOR.tools.callFunction(' + mouseDownFn + ', event)"' +
                                                        '></div>';
                                        }
                                }, editor, null, 100 );
                }
        }
} );

/**
 * The minimum editor width, in pixels, when resizing it with the resize handle.
 * @type Number
 * @default 750
 * @example
 * config.resize_minWidth = 500;
 */
CKEDITOR.config.resize_minWidth = 750;

/**
 * The minimum editor height, in pixels, when resizing it with the resize handle.
 * @type Number
 * @default 250
 * @example
 * config.resize_minHeight = 600;
 */
CKEDITOR.config.resize_minHeight = 250;

/**
 * The maximum editor width, in pixels, when resizing it with the resize handle.
 * @type Number
 * @default 3000
 * @example
 * config.resize_maxWidth = 750;
 */
CKEDITOR.config.resize_maxWidth = 3000;

/**
 * The maximum editor height, in pixels, when resizing it with the resize handle.
 * @type Number
 * @default 3000
 * @example
 * config.resize_maxHeight = 600;
 */
CKEDITOR.config.resize_maxHeight = 3000;

/**
 * Whether to enable the resizing feature. If disabed the resize handler will not be visible.
 * @type Boolean
 * @default true
 * @example
 * config.resize_enabled = false;
 */
CKEDITOR.config.resize_enabled = true;