kupucontentfilters.js

一个使用struts+hibernate+spring开发的完的网站源代码。

/*****************************************************************************
 *
 * Copyright (c) 2003-2004 Kupu Contributors. All rights reserved.
 *
 * This software is distributed under the terms of the Kupu
 * License. See LICENSE.txt for license text. For a list of Kupu
 * Contributors see CREDITS.txt.
 *
 *****************************************************************************/

// $Id: kupucontentfilters.js,v 1.1 2005/03/26 20:31:36 svieujot Exp $


//----------------------------------------------------------------------------
// 
// ContentFilters
//
//  These are (or currently 'this is') filters for HTML cleanup and 
//  conversion. Kupu filters should be classes that should get registered to
//  the editor using the registerFilter method with 2 methods: 'initialize'
//  and 'filter'. The first will be called with the editor as its only
//  argument and the latter with a reference to the ownerdoc (always use 
//  that to create new nodes and such) and the root node of the HTML DOM as 
//  its arguments.
//
//----------------------------------------------------------------------------

function NonXHTMLTagFilter() {
    /* filter out non-XHTML tags*/
    
    // A mapping from element name to whether it should be left out of the 
    // document entirely. If you want an element to reappear in the resulting 
    // document *including* it's contents, add it to the mapping with a 1 value.
    // If you want an element not to appear but want to leave it's contents in 
    // tact, add it to the mapping with a 0 value. If you want an element and
    // it's contents to be removed from the document, don't add it.
    if (arguments.length) {
        // allow an optional filterdata argument
        this.filterdata = arguments[0];
    } else {
        // provide a default filterdata dict
        this.filterdata = {'html': 1,
                            'body': 1,
                            'head': 1,
                            'title': 1,
                            
                            'a': 1,
                            'abbr': 1,
                            'acronym': 1,
                            'address': 1,
                            'b': 1,
                            'base': 1,
                            'blockquote': 1,
                            'br': 1,
                            'caption': 1,
                            'cite': 1,
                            'code': 1,
                            'col': 1,
                            'colgroup': 1,
                            'dd': 1,
                            'dfn': 1,
                            'div': 1,
                            'dl': 1,
                            'dt': 1,
                            'em': 1,
                            'h1': 1,
                            'h2': 1,
                            'h3': 1,
                            'h4': 1,
                            'h5': 1,
                            'h6': 1,
                            'h7': 1,
                            'i': 1,
                            'img': 1,
                            'kbd': 1,
                            'li': 1,
                            'link': 1,
                            'meta': 1,
                            'ol': 1,
                            'p': 1,
                            'pre': 1,
                            'q': 1,
                            'samp': 1,
                            'script': 1,
                            'span': 1,
                            'strong': 1,
                            'style': 1,
                            'sub': 1,
                            'sup': 1,
                            'table': 1,
                            'tbody': 1,
                            'td': 1,
                            'tfoot': 1,
                            'th': 1,
                            'thead': 1,
                            'tr': 1,
                            'ul': 1,
                            'u': 1,
                            'var': 1,

                            // even though they're deprecated we should leave
                            // font tags as they are, since Kupu sometimes
                            // produces them itself.
                            'font': 1,
                            'center': 0
                            };
    };
                        
    this.initialize = function(editor) {
        /* init */
        this.editor = editor;
    };

    this.filter = function(ownerdoc, htmlnode) {
        return this._filterHelper(ownerdoc, htmlnode);
    };

    this._filterHelper = function(ownerdoc, node) {
        /* filter unwanted elements */
        if (node.nodeType == 3) {
            return ownerdoc.createTextNode(node.nodeValue);
        } else if (node.nodeType == 4) {
            return ownerdoc.createCDATASection(node.nodeValue);
        };
        // create a new node to place the result into
        // XXX this can be severely optimized by doing stuff inline rather 
        // than on creating new elements all the time!
        var newnode = ownerdoc.createElement(node.nodeName);
        // copy the attributes
        for (var i=0; i < node.attributes.length; i++) {
            var attr = node.attributes[i];
            newnode.setAttribute(attr.nodeName, attr.nodeValue);
        };
        for (var i=0; i < node.childNodes.length; i++) {
            var child = node.childNodes[i];
            var nodeType = child.nodeType;
            var nodeName = child.nodeName.toLowerCase();
            if (nodeType == 3 || nodeType == 4) {
                newnode.appendChild(this._filterHelper(ownerdoc, child));
            };
            if (nodeName in this.filterdata && this.filterdata[nodeName]) {
                newnode.appendChild(this._filterHelper(ownerdoc, child));
            } else if (nodeName in this.filterdata) {
                for (var j=0; j < child.childNodes.length; j++) {
                    newnode.appendChild(this._filterHelper(ownerdoc, child.childNodes[j]));
                };
            };
        };
        return newnode;
    };
};

//-----------------------------------------------------------------------------
//
// XHTML validation support
//
// This class is the XHTML 1.0 transitional DTD expressed as Javascript
// data structures.
//
function XhtmlValidation(editor) {
    // Support functions
    this.Set = function(ary) {
        if (typeof(ary)==typeof('')) ary = [ary];
        if (ary instanceof Array) {
            for (var i = 0; i < ary.length; i++) {
                this[ary[i]] = 1;
            }
        }
        else {
            for (var v in ary) { // already a set?
                this[v] = 1;
            }
        }
    }

    this._exclude = function(array, exceptions) {
        var ex;
        if (exceptions.split) {
            ex = exceptions.split("|");
        } else {
            ex = exceptions;
        }
        var exclude = new this.Set(ex);
        var res = [];
        for (var k=0; k < array.length;k++) {
            if (!exclude[array[k]]) res.push(array[k]);
        }
        return res;
    }
    this.setAttrFilter = function(attributes, filter) {
        for (var j = 0; j < attributes.length; j++) {
            var attr = attributes[j];
            this.attrFilters[attr] = filter || this._defaultCopyAttribute;
        }
    }

    this.setTagAttributes = function(tags, attributes) {
        for (var j = 0; j < tags.length; j++) {
            this.tagAttributes[tags[j]] = attributes;
        }
    }

    // define some new attributes for existing tags
    this.includeTagAttributes = function(tags, attributes) {
        for (var j = 0; j < tags.length; j++) {
            var tag = tags[j];
            this.tagAttributes[tag] = this.tagAttributes[tag].concat(attributes);
        }
    }

    this.excludeTagAttributes = function(tags, attributes) {
        var bad = new this.Set(attributes);
        var tagset = new this.Set(tags);
        for (var tag in tagset) {
            var val = this.tagAttributes[tag];
            for (var i = val.length; i >= 0; i--) {
                if (bad[val[i]]) {
                    val = val.concat(); // Copy
                    val.splice(i,1);
                }
            }
            this.tagAttributes[tag] = val;
        }
    }

    this.excludeTags = function(badtags) {
        if (typeof(badtags)==typeof('')) badtags = [badtags];
        for (var i = 0; i < badtags.length; i++) {
            delete this.tagAttributes[badtags[i]];
        }
    }

    this.excludeAttributes = function(badattrs) {
        this.excludeTagAttributes(this.tagAttributes, badattrs);
        for (var i = 0; i < badattrs.length; i++) {
            delete this.attrFilters[badattrs[i]];
        }
    }
    if (editor.getBrowserName()=="IE") {
        this._getTagName = function(htmlnode) {
            var nodename = htmlnode.nodeName.toLowerCase();
            if (htmlnode.scopeName && htmlnode.scopeName != "HTML") {
                nodename = htmlnode.scopeName+':'+nodename;
            }
            return nodename;
        }
    } else {
        this._getTagName = function(htmlnode) {
            return htmlnode.nodeName.toLowerCase();
        }
    };

    // Supporting declarations
    this.elements = new function(validation) {
        // A list of all attributes
        this.attributes = [
            'abbr','accept','accept-charset','accesskey','action','align','alink',
            'alt','archive','axis','background','bgcolor','border','cellpadding',
            'cellspacing','char','charoff','charset','checked','cite','class',
            'classid','clear','code','codebase','codetype','color','cols','colspan',
            'compact','content','coords','data','datetime','declare','defer','dir',
            'disabled','enctype','face','for','frame','frameborder','headers',
            'height','href','hreflang','hspace','http-equiv','id','ismap','label',
            'lang','language','link','longdesc','marginheight','marginwidth',
            'maxlength','media','method','multiple','name','nohref','noshade','nowrap',
            'object','onblur','onchange','onclick','ondblclick','onfocus','onkeydown',
            'onkeypress','onkeyup','onload','onmousedown','onmousemove','onmouseout',
            'onmouseover','onmouseup','onreset','onselect','onsubmit','onunload',
            'profile','prompt','readonly','rel','rev','rows','rowspan','rules',
            'scheme','scope','scrolling','selected','shape','size','span','src',
            'standby','start','style','summary','tabindex','target','text','title',
            'type','usemap','valign','value','valuetype','vlink','vspace','width',
            'xml:lang','xml:space','xmlns'];

        // Core attributes
        this.coreattrs = ['id', 'title', 'style', 'class'];
        this.i18n = ['lang', 'dir', 'xml:lang'];
        // All event attributes are here but commented out so we don't
        // have to remove them later.
        this.events = []; // 'onclick|ondblclick|onmousedown|onmouseup|onmouseover|onmousemove|onmouseout|onkeypress|onkeydown|onkeyup'.split('|');
        this.focusevents = []; // ['onfocus','onblur']
        this.loadevents = []; // ['onload', 'onunload']
        this.formevents = []; // ['onsubmit','onreset']
        this.inputevents = [] ; // ['onselect', 'onchange']
        this.focus = ['accesskey', 'tabindex'].concat(this.focusevents);
        this.attrs = [].concat(this.coreattrs, this.i18n, this.events);

        // entities
        this.special_extra = ['object','applet','img','map','iframe'];
        this.special_basic=['br','span','bdo'];
        this.special = [].concat(this.special_basic, this.special_extra);
        this.fontstyle_extra = ['big','small','font','basefont'];
        this.fontstyle_basic = ['tt','i','b','u','s','strike'];
        this.fontstyle = [].concat(this.fontstyle_basic, this.fontstyle_extra);
        this.phrase_extra = ['sub','sup'];
        this.phrase_basic=[
                          'em','strong','dfn','code','q',
                          'samp','kbd','var', 'cite','abbr','acronym'];
        this.inline_forms = ['input','select','textarea','label','button'];
        this.misc_inline = ['ins','del'];
        this.misc = ['noscript'].concat(this.misc_inline);
        this.inline = ['a'].concat(this.special, this.fontstyle, this.phrase, this.inline_forms);

        this.Inline = ['#PCDATA'].concat(this.inline, this.misc_inline);

        this.heading = ['h1','h2','h3','h4','h5','h6'];
        this.lists = ['ul','ol','dl','menu','dir'];
        this.blocktext = ['pre','hr','blockquote','address','center','noframes'];
        this.block = ['p','div','isindex','fieldset','table'].concat(
                     this.heading, this.lists, this.blocktext);