NAME
    Wikiwyg - Turn any HTML div into a wysiwyg and wikitext edit area.

SYNOPSIS
        // This code enables a div to be a Wikiwyg area
        var myDiv = document.getElementById('some_id');
        var myConfig = {
            imagesLocation: '../../images/',
            javascriptLocation: '../../lib/',
            doubleClickToEdit: true
        }
        var myWikiwyg = new Wikiwyg.MySubclass();

        // Attempt to enable Wikiwyg for some div
        myWikiwyg.createWikiwygArea(myDiv, myConfig);
    
        // Change some link(s) to turn on the wikiwyg area
        if (myWikiwyg.enabled) {
            Wikiwyg.changeLinksMatching(
                'href', /action=edit/,
                function() {
                    myWikiwyg.editMode();
                    return false;
                }
            );
        }

        // You'll likely want to sublass Wikiwyg for your application.
        // Wikiwyg will work fine on its own but some behavior is undefined.
        proto = new Subclass('Wikiwyg.MySubclass', 'Wikiwyg');

        proto.modeClasses = [
            'Wikiwyg.Wysiwyg',
            'Wikiwyg.Wikitext.MySubclass',
            'Wikitext.Preview'
        ];

        proto.saveChanges = function() {
            // code to save edit changes to your system
        }

        // A subclass to customize Wikiwyg.Wikitext for your wiki variation
        proto = new Subclass('Wikiwyg.Wikitext.MySubclass', 'Wikiwyg.Wikitext');
        // etc...

DESCRIPTION
    Wikiwyg is a Javascript library that can be easily integrated into any
    wiki or blog software. It offers the user multiple ways to edit/view a
    piece of content:

        * Wysiwyg mode - Simple, HTML, Design Mode editing.
        * Wikitext mode - Standard, Wiki, Text Area editing.
        * Preview mode - Display mode without saving changes.

    Wikiwyg allows you to switch between modes, delegating some of the
    processing to the server when necessary.

FEATURES
        * Works in Internet Explorer and Mozilla browsers.
        * Can lay over any html div and be hooked into the existing edit
          buttons provided by the system.
        * Gracefully falls back to existing functionality if browser does
          not support Wikiwyg.
        * Subclassable to the environment it is being integrated into.
        * Configurable to tweak basic options.
        * Can edit multiple divs on the same page at the same time.
        * Instantaneous switch from view to edit.
        * Implemented as a clean OO library where each enabled div is a
          Wikiwyg object.
        * Toolbar does the right thing in both Wysiwyg and Wikitext modes.
        * Control key shortcuts apply styles without using the toolbar.
        * Adding new modes is as simple as adding new classes to the
          modeClasses property.

PROJECT GOALS
    Wikiwyg wants to be a wysiwyg and also traditional editor for
    preexisting wiki and weblog software packages. The initial targets are
    the Kwiki wiki project and Socialtext Workspace(tm).

    Wikiwyg should become the new TEXTAREA for applications that want more
    advanced input but don't want to rearchitect their infrastructure.

    Wikiwyg is simple to integrate into existing software. In many cases it
    should require no changes to the server side.

EXTENDING
    Wikiwyg uses CamelCase identifiers for public methods and attributes and
    lower_case_with_underscore identifiers for private methods and
    attributes.

    Nothing is really private in Javascript but the idea is that "private"
    identifiers are *Subject to Change*. If you need to override private
    stuff, please go right ahead; then consider notifying the author of your
    use case, so that things can be refactored to use public methods in a
    subsequent release.

    On the other hand you are highly encouraged to override public methods.
    That's why they are public :)

    For example, to change the layout of the toolbar buttons, you would
    define your own "setToolbarButtons" method (after loading the Wikiwyg
    library).

        Wikiwyg.Toolbar.prototype.setToolbarButtons = function() {
            this.add_toolbar_button('foo');
            ...
        }

    NOTE: Creating a flexible library for something like Wikiwyg is a
    challenge but it is entirely possible. Avoid the temptation to fork the
    code and instead learn to work with it and contribute back to the
    project. That way as Wikiwyg matures, so will your integration of it.

SUBCLASSING
    NOTE: Javascript doesn't have classes and subsclasses per se, but you
    can fake them and get encapsulation and inheritance benefits. So please
    check your purist hat at the front desk...

    Wikiwyg is intended to be subclassed. The nature of this beast is that
    it can only do so much for you. This is your system after all, and
    Wikiwyg doesn't know all the ins and outs of it. Wikiwyg provides
    methods for the things it wants to do conceptually and leaves it up to
    you to implement the ones that are specific to your system.

    Wikiwyg is actually comprised of several classes (even though they live
    in one module/file):

        * Wikiwyg -- the main driver class
        * Wikiwyg.Toolbar -- the class for creating/handling the toolbar
        * The Mode Classes:
        ** Wikiwyg.Wysiwyg -- the DesignMode wysiwyg editor
        ** Wikiwyg.Wikitext -- textarea editor with wiki syntax
        ** Wikiwyg.Preview -- an html preview of your changes

    To create a new subclass, Wikiwyg provides a special constructor called
    "Subclass". It takes two string arguments: the name of the new class,
    and optionally the name of the parent class. "Subclass" provides each
    object with two extra attributes: "classname" and "superfunc". Here is a
    typical usage in Wikiwyg:

        proto = new Subclass('Wikiwyg.Wikitext.Mine', 'Wikiwyg.Wikitext');
    
        proto.markupRules = {
            bold: ['bound_phrase', "'''", "'''"],
            italic: ['bound_phrase', "''", "''"]
        };
    
        proto.enableThis = function() {
            this.superfunc('enableThis').call(this);   // Call the base enableThis
            this.textarea.height = '400px';
            // alert(this.classname + ' is all set up!');
        }

RESOURCES
        * http://www.wikiwyg.net/
        * http://wiki.wikiwyg.net/
        * http://demo.wikiwyg.net/
        * http://www.openjsan.org/
        * wikiwyg-dev@wikiwyg.net

BUGS AND CAVEATS
    Wikiwyg currently only works in Internet Explorere 6.0 and in Gecko
    browsers like Mozilla Firefox. Other browsers like Safari and Opera will
    hopefully be supported later.

CREDITS
    The Wikiwyg library was written almost from scratch after playing with
    the code from RTE and WikiEdit. Wikiwyg differs highly in that it is a
    pure Javascript implementation, and is completely object oriented.

    Socialtext
        Socialtext is responsible for starting the Wikiwyg effort and
        putting it into the open for others to use.

    Brian Ingerson
        Brian started the Wikiwyg project. He is currently an employee of
        Socialtext and also the author of the Kwiki wiki software
        (http://www.kwiki.org).

    Chris Dent
        Chris did all the work that makes the Wikitext mode toolbar so smart
        and context sensitive.

        See: http://www.socialtext.com

    Roman "Kukutz" Ivanov <thingol@mail.ru>
        Roman wrote WikiEdit which is basically a textarea toolbar.
        http://wackowiki.com/WikiEdit

    Kevin Roth
        Kevin wrote the cross-browser rich-text editor (RTE).
        http://www.kevinroth.com/rte/demo.htm

AUTHORS
        Brian Ingerson <ingy@cpan.org>
        Casey West <casey@geeknest.com>
        Chris Dent <cdent@burningchrome.com>
        Matt Liggett <mml@pobox.com>
        Ryan King <rking@panoptic.com>
        Dave Rolsky <autarch@urth.org>

COPYRIGHT
        Copyright (c) 2005 Socialtext Corporation 
        655 High Street
        Palo Alto, CA 94301 U.S.A.
        All rights reserved.

    Wikiwyg is free software.

    This library is free software; you can redistribute it and/or modify it
    under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation; either version 2.1 of the License, or (at
    your option) any later version.

    This library is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
    General Public License for more details.

        http://www.gnu.org/copyleft/lesser.txt

