crop-monitor/manager/assets/modext/core/modx.js

Ext.namespace('MODx');
Ext.apply(Ext,{
    isFirebug: (window.console && window.console.firebug)
});
/* work around IE9 createContextualFragment bug
   http://www.sencha.com/forum/showthread.php?125869-Menu-shadow-probolem-in-IE9
 */
if ((typeof Range !== "undefined") && !Range.prototype.createContextualFragment)
{
	Range.prototype.createContextualFragment = function(html)
	{
		var frag = document.createDocumentFragment(),
		div = document.createElement("div");
		frag.appendChild(div);
		div.outerHTML = html;
		return frag;
	};
}
/**
 * @class MODx
 * @extends Ext.Component
 * @param {Object} config An object of config properties
 * @xtype modx
 */
MODx = function(config) {
    config = config || {};
    MODx.superclass.constructor.call(this,config);
    this.config = config;
    this.startup();
};
Ext.extend(MODx,Ext.Component,{
    config: {}
    ,util:{},window:{},panel:{},tree:{},form:{},grid:{},combo:{},toolbar:{},page:{},msg:{}
    ,expandHelp: true
    ,defaultState: []

    ,startup: function() {
        this.initQuickTips();
        this.request = this.getURLParameters();
        this.Ajax = this.load({ xtype: 'modx-ajax' });
        Ext.override(Ext.form.Field,{
            defaultAutoCreate: {tag: "input", type: "text", size: "20", autocomplete: "on", msgTarget: 'under' }
        });

        Ext.Ajax.on('requestexception',this.onAjaxException,this);
        Ext.menu.Menu.prototype.enableScrolling = false;
        this.addEvents({
            beforeClearCache: true
            ,beforeLogout: true
            ,beforeReleaseLocks: true
            ,beforeLoadPage: true
            ,afterClearCache: true
            ,afterLogout: true
            ,afterReleaseLocks: true
            ,ready: true
        });
    }

    /**
     * Add the given component to the modx-content container
     *
     * @param {String|Object} cmp Either a component xtype (string) or an object/configuration
     *
     * @return void
     */
    ,add: function(cmp) {
        if (typeof cmp === 'string') {
            cmp = { xtype: cmp }
        }
        var ctr = Ext.getCmp('modx-content');
        if (ctr) {
            ctr.removeAll();
            ctr.add(cmp);
            ctr.doLayout();
        }
    }

    ,load: function() {
        var a = arguments, l = a.length;
        var os = [];
        for(var i=0;i<l;i=i+1) {
            if (!a[i].xtype || a[i].xtype === '') {
                return false;
            }
            os.push(Ext.ComponentMgr.create(a[i]));
        }
        return (os.length === 1) ? os[0] : os;
    }

    ,initQuickTips: function() {
        Ext.QuickTips.init();
        Ext.apply(Ext.QuickTips.getQuickTip(), {
            dismissDelay: 2300
            ,interceptTitles: true
        });
    }

    ,getURLParameters: function() {
        var arg = {};
        var href = window.location.search;

        if (href.indexOf('?') !== -1) {
            var params = href.split('?')[1];
            var param = params.split('&');
            for (var i=0; i<param.length;i=i+1) {
                arg[param[i].split('=')[0]] = param[i].split('=')[1];
            }
        }
        return arg;
    }

    ,onAjaxException: function(conn,r,opt,e) {
        try {
            r = Ext.decode(r.responseText);
        } catch (e) {
            var text, matched = r.responseText.match(/<body[^>]*>([\w|\W]*)<\/body>/im);
            if (typeof(matched[1] !== 'undefined')) {
                text = '<p>'+e.message+':</p>'+matched[1];
            } else {
                text = e.message+': '+ r.responseText;
            }
            Ext.MessageBox.show({
                title: _('error')
                ,msg: text
                ,buttons: Ext.MessageBox.OK
                ,cls: 'modx-js-parse-error'
                ,minWidth: 600
                ,maxWidth: 750
                ,modal: false
                ,width: 600
            });
        }
        if (r && (r.code == 401 || (r.object && r.object.code == 401))) {
            if (!MODx.loginWindow) {
                MODx.loginWindow = MODx.load({
                    xtype: 'modx-window-login'
                    ,username: MODx.user.username
                });
            }
            MODx.loginWindow.show();
        }
    }

    ,loadAccordionPanels: function() { return []; }

    ,clearCache: function() {
        if (!this.fireEvent('beforeClearCache')) { return false; }

        var topic = '/clearcache/';
        this.console = MODx.load({
           xtype: 'modx-console'
           ,register: 'mgr'
           ,topic: topic
           ,clear: true
           ,show_filename: 0
           ,listeners: {
                'shutdown': {fn:function() {
                    if (this.fireEvent('afterClearCache')) {
                        if (MODx.config.clear_cache_refresh_trees == 1) {
                            Ext.getCmp('modx-layout').refreshTrees();
                        }
                    }
                },scope:this}
           }
        });

        this.console.show(Ext.getBody());

        MODx.Ajax.request({
            url: MODx.config.connector_url
            ,params: {
                action: 'system/clearcache'
                ,register: 'mgr'
                ,topic: topic
                ,media_sources: true
                ,menu: true
                ,action_map: true
            }
            ,listeners: {
                'success':{fn:function() {
                    this.console.fireEvent('complete');
                },scope:this}
            }
        });
        return true;
    }

    ,refreshURIs: function() {
        var topic = '/refreshuris/';
        MODx.msg.status({
            title: _('please_wait'),
            message: _('refreshuris_desc'),
            dontHide: true
        });
        MODx.Ajax.request({
            url: MODx.config.connector_url
            ,params: {
                action: 'system/refreshuris'
                ,register: 'mgr'
                ,topic: topic
                ,menu: true
            }
            ,listeners: {
                'success':{fn:function(r) {
                    MODx.msg.status({
                        title: _('success')
                        ,message: r.message || _('refresh_success')
                        ,dontHide: false
                    });
                    this.clearCache();
                },scope:this}
            }
        });
        return true;
    }
    ,releaseLock: function(id) {
        if (this.fireEvent('beforeReleaseLocks')) {
            MODx.Ajax.request({
                url: MODx.config.connector_url
                ,params: {
                    action: 'resource/locks/release'
                    ,id: id
                }
                ,listeners: {
                    'success':{fn:function(r) { this.fireEvent('afterReleaseLocks',r); },scope:this}
                }
            });
        }
    }
    ,removeLocks: function(id) {
		MODx.msg.confirm({
			title: _('remove_locks')
			,text: _('confirm_remove_locks')
			,url: MODx.config.connectors_url
			,params: {
				action: 'system/remove_locks'
			}
			,listeners: {
				'success': {
					fn:function() {
						var tree = Ext.getCmp("modx-resource-tree"); 
						
						if (tree && tree.rendered) {
							tree.refresh();
						}

						var cmp = Ext.getCmp("modx-panel-resource");
						
						if (cmp) {
							Ext.getCmp('modx-abtn-locked').hide();
							Ext.getCmp('modx-abtn-save').show();	
						}
					},
					scope:this
				}
			}
		});  
    }

    ,sleep: function(ms) {
        var s = new Date().getTime();
        for (var i=0;i < 1e7;i++) {
            if ((new Date().getTime() - s) > ms){
                break;
            }
        }
    }

    ,logout: function() {
        if (this.fireEvent('beforeLogout')) {
            MODx.msg.confirm({
                title: _('logout')
                ,text: _('logout_confirm')
                ,url: MODx.config.connector_url
                ,params: {
                    action: 'security/logout'
                    ,login_context: 'mgr'
                }
                ,listeners: {
                    'success': {fn:function(r) {
                        if (this.fireEvent('afterLogout',r)) {
                            location.href = './';
                        }
                    },scope:this}
                }
            });
        }
    }

    ,getPageStructure: function(v,c) {
        c = c || {};
        Ext.applyIf(c,{
            xtype: 'modx-tabs'
            ,itemId: 'tabs'
            ,items: v
			,cls: 'structure-tabs'
        });
        return c;
    }

    ,setStaticElementPath: function(type) {
        var category   = '',
            path       = '',
            name       = '',
            nameField  = 'name',
            typePlural = type + "s";

        if (type === "template") {
            nameField = 'templatename';
        }

        if (MODx.config["static_elements_automate_" + typePlural] == 1) {
            if (Ext.getCmp("modx-" + type + "-category").getValue() > 0) {
                category = Ext.getCmp("modx-" + type + "-category").lastSelectionText;
            }

            name = Ext.getCmp("modx-" + type + "-" + nameField).getValue();
            path = MODx.getStaticElementsPath(name, category, typePlural);
            Ext.getCmp("modx-" + type + "-static-file").setValue(path);
        }
    }

    ,setStaticElementsConfig: function (config, type) {
        var typePlural = type + 's';

        if (MODx.request.a === 'element/' + type + '/create' && MODx.config['static_elements_automate_' + typePlural] == 1) {
            config.record['static'] = 1;
            config.record['static_file'] = MODx.config.static_elements_basepath + typePlural + '/';
            config.record['category'] = MODx.config.static_elements_default_category;

            if (MODx.config.static_elements_default_mediasource) {
                config.record['source'] = MODx.config.static_elements_default_mediasource;
            }
        }

        return config;
    }

    ,getStaticElementsPath: function(name, category, type) {
        var path = MODx.config.static_elements_basepath,
            ext  = '';

        if (category.length > 0) {
            category = category.replace(/[^\w\s-]/gi, "");
            category = category.replace(/\s/g, '-').toLowerCase();
            // Convert nested elements to nested directory structure.
            category = category.replace(/--/gi, '/');
            category = "/" + category + "/";
        } else {
            category = "/";
        }

        // Remove trailing slash.
        path = path.replace(/\/$/, "");

        switch(type) {
            case "templates":
                ext = ".template.tpl";
                break;
            case "tvs":
                ext = ".tv.tpl";
                break;
            case "chunks":
                ext = ".chunk.tpl";
                break;
            case "snippets":
                ext = ".snippet.php";
                break;
            case "plugins":
                ext = ".plugin.php";
                break;
        }

        // Remove special characters and spaces.
        name = name.replace(/[^\w\s-]/gi, '');
        name = name.replace(/\s/g, '-').toLowerCase();

        if (name.length > 0) {
            path += "/" + type + category + name + ext;
        } else {
            path += "/" + type + category;
        }

        return path;
    }

    ,helpUrl: false
    ,loadHelpPane: function(b) {
        var url = MODx.helpUrl || MODx.config.help_url || '';
        if (!url || !url.length) { return false; }

        if (url.substring(0, 4) !== 'http') {
            url = MODx.config.base_help_url + url;
        }

        MODx.helpWindow = new Ext.Window({
            title: _('help')
            ,width: 850
            ,height: 500
            ,resizable: true
            ,maximizable: true
            ,modal: false
            ,layout: 'fit'
			,bodyStyle : 'padding: 0;'
            ,items: [{
	        	xtype		: 'container',
				layout		: {
	            	type		: 'vbox',
					align		: 'stretch'
				},
				width		: '100%',
				height		: '100%',
				items		:[{
					autoEl 		: {
		                tag 		: 'iframe',
		                src			: url,
		                width		: '100%',
						height		: '100%',
						frameBorder	: 0
					}
				}]
			}]
			//,html: '<iframe src="' + url + '" width="100%" height="100%" frameborder="0"></iframe>'
        });
        MODx.helpWindow.show(b);
        return true;
    }

    ,addTab: function(tbp,opt) {
        var tabs = Ext.getCmp(tbp);
        if (tabs) {
            Ext.applyIf(opt,{
                id: 'modx-'+Ext.id()+'-tab'
                ,layout: 'form'
                ,labelAlign: 'top'
                ,cls: 'modx-resource-tab'
                ,bodyStyle: 'padding: 15px;'
                ,autoHeight: true
                ,defaults: {
                    border: false
                    ,msgTarget: 'side'
                    ,width: 400
                }
            });
            tabs.add(opt);
            tabs.doLayout();
            tabs.setActiveTab(0);
        }
    }
    ,hiddenTabs: []
    ,hideTab: function(ct,tab) {this.hideRegion(ct,tab);}
    ,hideRegion: function(ct,tab) {
        var tp = Ext.getCmp(ct);
        if (tp) {
            var tabObj = tp.getItem(tab);
            if (tabObj) {
                var z = tp.hideTabStripItem(tab);
                MODx.hiddenTabs.push(tab);
                var idx = this._getNextActiveTab(tp,tab);
                tp.setActiveTab(idx);
            } else {
                var region = Ext.getCmp(tab);
                if (region) {
                    region.hide();
                }
            }
        }
    }
    ,_getNextActiveTab: function(tp,tab) {
        if (MODx.hiddenTabs.indexOf(tab) != -1) {
            var id;
            for (var i=0;i<tp.items.items.length;i++) {
                 id = tp.items.items[i].id;
                if (MODx.hiddenTabs.indexOf(id) == -1) { break; }
            }
        } else { id = tab; }
        return id;
    }

    ,moveTV: function(tvs,tab) {
        if (!Ext.isArray(tvs)) { tvs = [tvs]; }
        var tvp = Ext.getCmp('modx-panel-resource-tv');
        if (!tvp) { return; }

        for (var i=0;i<tvs.length;i++) {
            var tr = Ext.get(tvs[i]+'-tr');

            if (!tr) { return; }
            var fp = Ext.getCmp(tab);
            if (!fp) { return; }
            fp.add({
                html: ''
                ,width: '100%'
                ,id: 'tv-tr-out-'+tvs[i]
                ,cls: 'modx-tv-out'
            });
            fp.doLayout();

            var o = Ext.get('tv-tr-out-'+tvs[i]);
            o.replaceWith(tr);
        }
    }
    ,hideTV: function(tvs) {
        if (!Ext.isArray(tvs)) { tvs = [tvs]; }
        this.hideTVs(tvs);
    }
    ,hideTVs: function(tvs) {
        if (!Ext.isArray(tvs)) { tvs = [tvs]; }
        var el;
        for (var i=0;i<tvs.length;i++) {
            el = Ext.get(tvs[i]+'-tr');
            if (el) {
                el.setVisibilityMode(Ext.Element.DISPLAY);
                el.hide();
            }
        }
    }
    ,renameLabel: function(ct,flds,vals) {
        var cto;
        if (ct == 'modx-panel-resource' && flds.indexOf('modx-resource-content') != -1) {
            cto = Ext.getCmp('modx-resource-content');
            if (cto) {
                if (cto.setTitle) {
                    cto.setTitle(vals[0]);
                } else if (cto.setLabel) {
                    cto.setLabel(flds,vals);
                } else {
                    cto.label.update(vals[0]);
                }
            }
        } else {
            cto = Ext.getCmp(ct);
            if (cto) {
                cto.setLabel(flds,vals);
            }
        }
    }
    ,renameTab: function(tb,title) {
        var tab = Ext.getCmp(tb);
        if (tab) {
            tab.setTitle(title);
        }
    }
    ,hideField: function(ct,flds) {
        ct = Ext.getCmp(ct);
        if (ct) {
            ct.hideField(flds);
        }
    }
    ,preview: function() {
        var url = MODx.config.site_url;
        if (MODx.config.default_site_url) {
            url = MODx.config.default_site_url;
        }
        window.open(url);
    }
    ,makeDroppable: function(fld,h,p) {
        if (!fld) return false;
        h = h || Ext.emptyFn;
        if (fld.getEl) {
            var el = fld.getEl();
        } else if (fld) {
            el = fld;
        }
        if (el) {
            new MODx.load({
                xtype: 'modx-treedrop'
                ,target: fld
                ,targetEl: el.dom
                ,onInsert: h
                ,panel: p || 'modx-panel-resource'
            });
        }
        return true;
    }
    ,debug: function(msg) {
        if (MODx.config.ui_debug_mode == 1) {
            console.log(msg);
        }
    }

    ,isEmpty: function(v) {
        return Ext.isEmpty(v) || v === false || v === 'false' || v === 'FALSE' || v === '0' || v === 0;
    }
});
Ext.reg('modx',MODx);

/**
 * An override class for Ext.Ajax, which adds success/failure events.
 *
 * @class MODx.Ajax
 * @extends Ext.Component
 * @param {Object} config An object of config properties
 * @xtype modx-ajax
 */
MODx.Ajax = function(config) {
    config = config || {};
    MODx.Ajax.superclass.constructor.call(this, config);
};
Ext.extend(MODx.Ajax,Ext.Component,{
    request: function(config) {
        Ext.apply(config,{
            success: function(r,o) {
                r = Ext.decode(r.responseText);
                if (!r) {
                    return false;
                }
                r.options = o;
                if (r.success) {
                    if (config.listeners.success && config.listeners.success.fn) {
                        this._runCallback(config.listeners.success, [r]);
                    }
                } else if (config.listeners.failure && config.listeners.failure.fn) {
                    this._runCallback(config.listeners.failure, [r]);
                    MODx.form.Handler.errorJSON(r);
                }
                return true;
            }
            ,failure: function(r, o) {
                r = Ext.decode(r.responseText);
                if (!r) {
                    return false;
                }
                r.options = o;
                if (config.listeners.failure && config.listeners.failure.fn) {
                    this._runCallback(config.listeners.failure, [r]);
                    MODx.form.Handler.errorJSON(r);
                }
                return true;
            }
            ,scope: this
            ,headers: {
                'Powered-By': 'MODx'
                ,'modAuth': config.auth
            }
        });
        Ext.Ajax.request(config);
    }
    /**
     * Execute the listener callback
     *
     * @param {Object} config - The listener configuration (ie.failure/success)
     * @param {Array} args - An array of arguments to pass to the callback
     */
    ,_runCallback: function(config, args) {
        var scope = window
            ,fn = config.fn;

        if (config.scope) {
            scope = config.scope;
        }
        fn.apply(scope || window, args);
    }
});
Ext.reg('modx-ajax',MODx.Ajax);


MODx = new MODx();


MODx.form.Handler = function(config) {
    config = config || {};
    MODx.form.Handler.superclass.constructor.call(this,config);
};
Ext.extend(MODx.form.Handler,Ext.Component,{
    fields: []

    ,handle: function(o,s,r) {
        r = Ext.decode(r.responseText);
        if (!r.success) {
            this.showError(r.message);
            return false;
        }
        return true;
    }

    ,highlightField: function(f) {
        if (f.id !== undefined && f.id !== 'forEach' && f.id !== '') {
            var fld = Ext.get(f.id);
            if (fld && fld.dom) {
                fld.dom.style.border = '1px solid red';
            }
            var ef = Ext.get(f.id+'_error');
            if (ef) { ef.innerHTML = f.msg; }
            this.fields.push(f.id);
        }
    }

    ,unhighlightFields: function() {
        for (var i=0;i<this.fields.length;i=i+1) {
            Ext.get(this.fields[i]).dom.style.border = '';
            var ef = Ext.get(this.fields[i]+'_error');
            if (ef) { ef.innerHTML = ''; }
        }
        this.fields = [];
    }

    ,errorJSON: function(e) {
        if (e === '') { return this.showError(e); }
        if (e.data && e.data !== null) {
            for (var p=0;p<e.data.length;p=p+1) {
                this.highlightField(e.data[p]);
            }
        }

        this.showError(e.message);
        return false;
    }

    ,errorExt: function(r,frm) {
        this.unhighlightFields();
        if (r && r.errors !== null && frm) {
            frm.markInvalid(r.errors);
        }
        if (r && r.message !== undefined && r.message !== '') {
            this.showError(r.message);
        } else {
            MODx.msg.hide();
        }
        return false;
    }

    ,showError: function(e) {
        if (e === '') {
            MODx.msg.hide();
        } else {
            MODx.msg.alert(_('error'),e,Ext.emptyFn);
        }
    }

    ,closeError: function() { MODx.msg.hide(); }
});
Ext.reg('modx-form-handler',MODx.form.Handler);

MODx.Msg = function(config) {
    config = config || {};
    MODx.Msg.superclass.constructor.call(this,config);
    this.addEvents({
        'success': true
        ,'failure': true
        ,'cancel': true
    });
    Ext.MessageBox.minWidth = 200;
};
Ext.extend(MODx.Msg,Ext.Component,{
    confirm: function(config) {
        this.purgeListeners();
        if (config.listeners) {
            for (var i in config.listeners) {
              var l = config.listeners[i];
              this.addListener(i,l.fn,l.scope || this,l.options || {});
            }
        }
        Ext.Msg.confirm(config.title || _('warning'),config.text,function(e) {
            if (e == 'yes') {
                MODx.Ajax.request({
                    url: config.url
                    ,params: config.params || {}
                    ,method: 'post'
                    ,scope: this
                    ,listeners: {
                        'success':{fn:function(r) {
                            this.fireEvent('success',r);
                        },scope:this}
                        ,'failure':{fn:function(r) {
                            return this.fireEvent('failure',r);
                        },scope:this}
                    }
                });
            } else {
                this.fireEvent('cancel',config);
            }
        },this);
    }

    ,getWindow: function() {
        return Ext.Msg.getDialog();
    }

    ,alert: function(title,text,fn,scope) {
        fn = fn || Ext.emptyFn;
        scope = scope || this;
        Ext.Msg.alert(title,text,fn,scope);
    }

    ,status: function(opt) {
        if (!MODx.stMsgCt) {
            MODx.stMsgCt = Ext.DomHelper.insertFirst(document.body, {id:'modx-status-message-ct'}, true);
        }
        MODx.stMsgCt.alignTo(document, 't-t');
        var markup = this.getStatusMarkup(opt);
        var m = Ext.DomHelper.overwrite(MODx.stMsgCt, {html:markup}, true);

        var fadeOpts = {remove:true,useDisplay:true};
        if (!opt.dontHide) {
            if(!Ext.isIE8) {
                m.pause(opt.delay || 1.5).ghost("t",fadeOpts);
            } else {
                fadeOpts.duration = (opt.delay || 1.5);
                m.ghost("t",fadeOpts);
            }
        } else {
            m.on('click',function() {
                m.ghost('t',fadeOpts);
            });
        }

    }
    ,getStatusMarkup: function(opt) {
        var mk = '<div class="modx-status-msg">';
        if (opt.title) { mk += '<h3>'+opt.title+'</h3>'; }
        if (opt.message) { mk += '<span class="modx-smsg-message">'+opt.message+'</span>'; }
        return mk+'</div>';
    }
});
Ext.reg('modx-msg',MODx.Msg);

/**
 * Server-side state provider for MODx
 *
 * @class MODx.state.HttpProvider
 * @extends Ext.state.Provider
 * @constructor
 * @param {Object} config Configuration object.
 */
MODx.HttpProvider = function(config) {
    config = config || {};
    this.addEvents(
        'readsuccess'
        ,'readfailure'
        ,'writesuccess'
        ,'writefailure'
    );
    MODx.HttpProvider.superclass.constructor.call(this,config);
    Ext.apply(this, config, {
        delay: 500
        ,dirty: false
        ,started: false
        ,autoStart: true
        ,autoRead: true
        ,queue: {}
        ,readUrl: MODx.config.connector_url
        ,writeUrl: MODx.config.connector_url
        ,method: 'post'
        ,baseParams: {
            register: 'state'
            ,topic: ''
        }
        ,writeBaseParams: {
            action: 'system/registry/register/send'
            ,message: ''
            ,message_key: ''
            ,message_format: 'json'
            ,delay: 0
            ,ttl: 0
            ,kill: 0
        }
        ,readBaseParams: {
            action: 'system/registry/register/read'
            ,format: 'json'
            ,poll_limit: 1
            ,poll_interval: 1
            ,time_limit: 10
            ,message_limit: 1000
            ,remove_read: 0
            ,show_filename: 0
            ,include_keys: 1
        }
        ,paramNames: {
            topic: 'topic'
            ,name: 'name'
            ,value: 'value'
            ,message: 'message'
            ,message_key: 'message_key'
        }
    });
    this.config = config;
    if (this.autoRead) {
        this.readState();
    }
    this.dt = new Ext.util.DelayedTask(this.submitState, this);
    if (this.autoStart) {
        this.start();
    }
};
Ext.extend(MODx.HttpProvider, Ext.state.Provider, {
    initState: function(state) {
        if (state instanceof Object) {
            Ext.iterate(state, function(name, value, o) {
                this.state[name] = value;//this.decodeValue(value);
            }, this)
        } else {
            this.state = {};
        }
    }
    ,set: function(name, value) {
        if (!name) {
            return;
        }
        this.queueChange(name, value);
    }
    ,get : function(name, defaultValue){
        return typeof this.state[name] == "undefined" ?
            defaultValue : this.state[name];
    }
    ,start: function() {
        this.dt.delay(this.delay);
        this.started = true;
    }
    ,stop: function() {
        this.dt.cancel();
        this.started = false;
    }
    ,queueChange:function(name, value) {
        var lastValue = this.state[name];
        var found = this.queue[name] !== undefined;
        if (found) {
            lastValue = this.queue[name];
        }
        var changed = undefined === lastValue || lastValue !== value;
        if (changed) {
            this.queue[name] = value;
            this.dirty = true;
        }
        if (this.started) {
            this.start();
        }
        return changed;
    }
    ,submitState: function() {
        if (!this.dirty) {
            this.dt.delay(this.delay);
            return;
        }
        this.dt.cancel();

        var o = {
             url: this.writeUrl
            ,method: this.method
            ,scope: this
            ,success: this.onWriteSuccess
            ,failure: this.onWriteFailure
            ,queue: Ext.apply({}, this.queue)
            ,params: {}
        };
        var params = Ext.apply({}, this.baseParams, this.writeBaseParams);
        params[this.paramNames.topic] = '/ys/user-' + MODx.user.id + '/';
        params[this.paramNames.message] = Ext.encode(this.queue);

        Ext.apply(o.params, params);
        // be optimistic
        this.dirty = false;

        Ext.Ajax.request(o);
    }
    ,clear: function(name) {
        this.set(name, undefined);
    }
    ,onWriteSuccess: function(r,o) {
        r = Ext.decode(r.responseText);
        if (true !== r.success) {
            this.dirty = true;
        } else {
            Ext.iterate(o.queue, function(name, value) {
                if(!name) {
                    return;
                }
                if (undefined === value || null === value) {
                    MODx.HttpProvider.superclass.clear.call(this, name);
                } else {
                    // parent sets value and fires event
                    MODx.HttpProvider.superclass.set.call(this, name, value);
                }
            }, this);
            if (false === this.dirty) {
                this.queue = {};
            } else {
                Ext.iterate(o.queue, function(name, value) {
                    var found = this.queue[name] !== undefined;
                    if (true === found && value === this.queue[name]) {
                        delete this.queue[name];
                    }
                }, this);
            }
            this.fireEvent('writesuccess', this);
        }
    }
    ,onWriteFailure: function(r) {
        r = Ext.decode(r.responseText);
        this.dirty = true;
        this.fireEvent('writefailure', this);
    }
    ,onReadFailure: function(r) {
        r = Ext.decode(r.responseText);
        this.fireEvent('readfailure', this);
    }
    ,onReadSuccess: function(r) {
        r = Ext.decode(r.responseText);
        var state;
        if (true === r.success && r.message) {
            state = Ext.decode(r.message);
            if (!(state instanceof Object)) {
                return;
            }
            Ext.iterate(state, function(name, value, o) {
                this.state[name] = value;
            }, this);
            this.queue = {};
            this.dirty = false;
            this.fireEvent('readsuccess', this);
        }
    }
    ,readState: function() {
        var o = {
             url: this.readUrl
            ,method: this.method
            ,scope: this
            ,success: this.onReadSuccess
            ,failure: this.onReadFailure
            ,params: {}
        };

        var params = Ext.apply({}, this.baseParams, this.readBaseParams);
        params[this.paramNames.topic] = '/ys/user-' + MODx.user.id + '/';

        Ext.apply(o.params, params);
        Ext.Ajax.request(o);
    }
});

MODx.Header = function(config) {
    config = config || {};

    Ext.applyIf(config, {
        cls: 'modx-page-header'
        ,autoEl: {
            tag: 'h2'
        }
        ,itemId: 'header'
    });
    MODx.Header.superclass.constructor.call(this, config);
};
Ext.extend(MODx.Header, Ext.BoxComponent, {});
Ext.reg('modx-header', MODx.Header);

MODx.Description = function(config) {
    config = config || {};

    Ext.applyIf(config, {
        cls: 'panel-desc'
        ,itemId: 'description'
    });
    MODx.Description.superclass.constructor.call(this, config);
};
Ext.extend(MODx.Description, Ext.BoxComponent, {});
Ext.reg('modx-description', MODx.Description);