source: trunk/filemanager/tp/ckeditor/_source/plugins/pastetext/plugin.js @ 2000

/*
Copyright (c) 2003-2009, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/

/**
 * @file Paste as plain text plugin
 */

(function()
{
        // The pastetext command definition.
        var pasteTextCmd =
        {
                exec : function( editor )
                {
                        // We use getClipboardData just to test if the clipboard access has
                        // been granted by the user.
                        if ( CKEDITOR.getClipboardData() === false || !window.clipboardData )
                        {
                                editor.openDialog( 'pastetext' );
                                return;
                        }

                        editor.insertText( window.clipboardData.getData( 'Text' ) );
                }
        };

        // Register the plugin.
        CKEDITOR.plugins.add( 'pastetext',
        {
                init : function( editor )
                {
                        var commandName = 'pastetext',
                                command = editor.addCommand( commandName, pasteTextCmd );

                        editor.ui.addButton( 'PasteText',
                                {
                                        label : editor.lang.pasteText.button,
                                        command : commandName
                                });

                        CKEDITOR.dialog.add( commandName, CKEDITOR.getUrl( this.path + 'dialogs/pastetext.js' ) );

                        if ( editor.config.forcePasteAsPlainText )
                        {
                                editor.on( 'beforePaste', function( event )
                                        {
                                                if ( editor.mode == "wysiwyg" )
                                                {
                                                        setTimeout( function() { command.exec(); }, 0 );
                                                        event.cancel();
                                                }
                                        },
                                        null, null, 20 );
                        }
                },
                requires : [ 'clipboard' ]
        });

        var clipboardDiv;

        CKEDITOR.getClipboardData = function()
        {
                if ( !CKEDITOR.env.ie )
                        return false;

                var doc = CKEDITOR.document,
                        body = doc.getBody();

                if ( !clipboardDiv )
                {
                        clipboardDiv = doc.createElement( 'div',
                                {
                                        attributes :
                                                {
                                                        id: 'cke_hiddenDiv'
                                                },
                                        styles :
                                                {
                                                        position : 'absolute',
                                                        visibility : 'hidden',
                                                        overflow : 'hidden',
                                                        width : '1px',
                                                        height : '1px'
                                                }
                                });

                        clipboardDiv.setHtml( '' );

                        clipboardDiv.appendTo( body );
                }

                // The "enabled" flag is used to check whether the paste operation has
                // been completed (the onpaste event has been fired).
                var     enabled = false;
                var setEnabled = function()
                {
                        enabled = true;
                };

                body.on( 'paste', setEnabled );

                // Create a text range and move it inside the div.
                var textRange = body.$.createTextRange();
                textRange.moveToElementText( clipboardDiv.$ );

                // The execCommand in will fire the "onpaste", only if the
                // security settings are enabled.
                textRange.execCommand( 'Paste' );

                // Get the DIV html and reset it.
                var html = clipboardDiv.getHtml();
                clipboardDiv.setHtml( '' );

                body.removeListener( 'paste', setEnabled );

                // Return the HTML or false if not enabled.
                return enabled && html;
        };
})();

CKEDITOR.editor.prototype.insertText = function( text )
{
        text = CKEDITOR.tools.htmlEncode( text );

        // TODO: Replace the following with fill line break processing (see V2).
        text = text.replace( /(?:\r\n)|\n|\r/g, '<br>' );

        this.insertHtml( text );
};

/**
 * Whether to force all pasting operations to insert on plain text into the
 * editor, loosing any formatting information possibly available in the source
 * text.
 * @type Boolean
 * @default false
 * @example
 * config.forcePasteAsPlainText = true;
 */
CKEDITOR.config.forcePasteAsPlainText = false;