Roo.js

[roojs1] / Roo.js

/*
 * Based on:
 * Ext JS Library 1.1.1
 * Copyright(c) 2006-2007, Ext JS, LLC.
 *
 * Originally Released Under LGPL - original licence link has changed is not relivant.
 *
 * Fork - LGPL
 * <script type="text/javascript">
 */
 




// for old browsers
window["undefined"] = window["undefined"];

/**
 * @class Roo
 * Roo core utilities and functions.
 * @singleton
 */
var Roo = {}; 
/**
 * Copies all the properties of config to obj.
 * @param {Object} obj The receiver of the properties
 * @param {Object} config The source of the properties
 * @param {Object} defaults A different object that will also be applied for default values
 * @return {Object} returns obj
 * @member Roo apply
 */

 
Roo.apply = function(o, c, defaults){
    if(defaults){
        // no "this" reference for friendly out of scope calls
        Roo.apply(o, defaults);
    }
    if(o && c && typeof c == 'object'){
        for(var p in c){
            o[p] = c[p];
        }
    }
    return o;
};


(function(){
    var idSeed = 0;
    var ua = navigator.userAgent.toLowerCase();

    var isStrict = document.compatMode == "CSS1Compat",
        isOpera = ua.indexOf("opera") > -1,
        isSafari = (/webkit|khtml/).test(ua),
        isIE = ua.indexOf("msie") > -1,
        isIE7 = ua.indexOf("msie 7") > -1,
        isGecko = !isSafari && ua.indexOf("gecko") > -1,
        isBorderBox = isIE && !isStrict,
        isWindows = (ua.indexOf("windows") != -1 || ua.indexOf("win32") != -1),
        isMac = (ua.indexOf("macintosh") != -1 || ua.indexOf("mac os x") != -1),
        isLinux = (ua.indexOf("linux") != -1),
        isSecure = window.location.href.toLowerCase().indexOf("https") === 0;

    // remove css image flicker
        if(isIE && !isIE7){
        try{
            document.execCommand("BackgroundImageCache", false, true);
        }catch(e){}
    }

    Roo.apply(Roo, {
        /**
         * True if the browser is in strict mode
         * @type Boolean
         */
        isStrict : isStrict,
        /**
         * True if the page is running over SSL
         * @type Boolean
         */
        isSecure : isSecure,
        /**
         * True when the document is fully initialized and ready for action
         * @type Boolean
         */
        isReady : false,

        /**
         * True to automatically uncache orphaned Roo.Elements periodically (defaults to true)
         * @type Boolean
         */
        enableGarbageCollector : true,

        /**
         * True to automatically purge event listeners after uncaching an element (defaults to false).
         * Note: this only happens if enableGarbageCollector is true.
         * @type Boolean
         */
        enableListenerCollection:false,

        /**
         * URL to a blank file used by Roo when in secure mode for iframe src and onReady src to prevent
         * the IE insecure content warning (defaults to javascript:false).
         * @type String
         */
        SSL_SECURE_URL : "javascript:false",

        /**
         * URL to a 1x1 transparent gif image used by Roo to create inline icons with CSS background images. (Defaults to
         * "http://Roojs.com/s.gif" and you should change this to a URL on your server).
         * @type String
         */
        BLANK_IMAGE_URL : "http:/"+"/localhost/s.gif",

        emptyFn : function(){},

        /**
         * Copies all the properties of config to obj if they don't already exist.
         * @param {Object} obj The receiver of the properties
         * @param {Object} config The source of the properties
         * @return {Object} returns obj
         */
        applyIf : function(o, c){
            if(o && c){
                for(var p in c){
                    if(typeof o[p] == "undefined"){ o[p] = c[p]; }
                }
            }
            return o;
        },

        /**
         * Applies event listeners to elements by selectors when the document is ready.
         * The event name is specified with an @ suffix.
<pre><code>
Roo.addBehaviors({
   // add a listener for click on all anchors in element with id foo
   '#foo a@click' : function(e, t){
       // do something
   },

   // add the same listener to multiple selectors (separated by comma BEFORE the @)
   '#foo a, #bar span.some-class@mouseover' : function(){
       // do something
   }
});
</code></pre>
         * @param {Object} obj The list of behaviors to apply
         */
        addBehaviors : function(o){
            if(!Roo.isReady){
                Roo.onReady(function(){
                    Roo.addBehaviors(o);
                });
                return;
            }
            var cache = {}; // simple cache for applying multiple behaviors to same selector does query multiple times
            for(var b in o){
                var parts = b.split('@');
                if(parts[1]){ // for Object prototype breakers
                    var s = parts[0];
                    if(!cache[s]){
                        cache[s] = Roo.select(s);
                    }
                    cache[s].on(parts[1], o[b]);
                }
            }
            cache = null;
        },

        /**
         * Generates unique ids. If the element already has an id, it is unchanged
         * @param {String/HTMLElement/Element} el (optional) The element to generate an id for
         * @param {String} prefix (optional) Id prefix (defaults "Roo-gen")
         * @return {String} The generated Id.
         */
        id : function(el, prefix){
            prefix = prefix || "roo-gen";
            el = Roo.getDom(el);
            var id = prefix + (++idSeed);
            return el ? (el.id ? el.id : (el.id = id)) : id;
        },
         
       
        /**
         * Extends one class with another class and optionally overrides members with the passed literal. This class
         * also adds the function "override()" to the class that can be used to override
         * members on an instance.
         * @param {Object} subclass The class inheriting the functionality
         * @param {Object} superclass The class being extended
         * @param {Object} overrides (optional) A literal with members
         * @method extend
         */
        extend : function(){
            // inline overrides
            var io = function(o){
                for(var m in o){
                    this[m] = o[m];
                }
            };
            return function(sb, sp, overrides){
                if(typeof sp == 'object'){ // eg. prototype, rather than function constructor..
                    overrides = sp;
                    sp = sb;
                    sb = function(){sp.apply(this, arguments);};
                }
                var F = function(){}, sbp, spp = sp.prototype;
                F.prototype = spp;
                sbp = sb.prototype = new F();
                sbp.constructor=sb;
                sb.superclass=spp;
                
                if(spp.constructor == Object.prototype.constructor){
                    spp.constructor=sp;
                   
                }
                
                sb.override = function(o){
                    Roo.override(sb, o);
                };
                sbp.override = io;
                Roo.override(sb, overrides);
                return sb;
            };
        }(),

        /**
         * Adds a list of functions to the prototype of an existing class, overwriting any existing methods with the same name.
         * Usage:<pre><code>
Roo.override(MyClass, {
    newMethod1: function(){
        // etc.
    },
    newMethod2: function(foo){
        // etc.
    }
});
 </code></pre>
         * @param {Object} origclass The class to override
         * @param {Object} overrides The list of functions to add to origClass.  This should be specified as an object literal
         * containing one or more methods.
         * @method override
         */
        override : function(origclass, overrides){
            if(overrides){
                var p = origclass.prototype;
                for(var method in overrides){
                    p[method] = overrides[method];
                }
            }
        },
        /**
         * Creates namespaces to be used for scoping variables and classes so that they are not global.  Usage:
         * <pre><code>
Roo.namespace('Company', 'Company.data');
Company.Widget = function() { ... }
Company.data.CustomStore = function(config) { ... }
</code></pre>
         * @param {String} namespace1
         * @param {String} namespace2
         * @param {String} etc
         * @method namespace
         */
        namespace : function(){
            var a=arguments, o=null, i, j, d, rt;
            for (i=0; i<a.length; ++i) {
                d=a[i].split(".");
                rt = d[0];
                /** eval:var:o */
                eval('if (typeof ' + rt + ' == "undefined"){' + rt + ' = {};} o = ' + rt + ';');
                for (j=1; j<d.length; ++j) {
                    o[d[j]]=o[d[j]] || {};
                    o=o[d[j]];
                }
            }
        },
        /**
         * Creates namespaces to be used for scoping variables and classes so that they are not global.  Usage:
         * <pre><code>
Roo.factory({ xns: Roo.data, xtype : 'Store', .....});
Roo.factory(conf, Roo.data);
</code></pre>
         * @param {String} classname
         * @param {String} namespace (optional)
         * @method factory
         */
         
        factory : function(c, ns)
        {
            // no xtype, no ns or c.xns - or forced off by c.xns
            if (!c.xtype   || (!ns && !c.xns) ||  (c.xns === false)) { // not enough info...
                return c;
            }
            ns = c.xns ? c.xns : ns; // if c.xns is set, then use that..
            if (c.constructor == ns[c.xtype]) {// already created...
                return c;
            }
            if (ns[c.xtype]) {
                console.log("Roo.Factory(" + c.xtype + ")");
                var ret = new ns[c.xtype](c);
                ret.xns = false;
                return ret;
            }
            c.xns = false; // prevent recursion..
            return c;
        },
         
        /**
         * Takes an object and converts it to an encoded URL. e.g. Roo.urlEncode({foo: 1, bar: 2}); would return "foo=1&bar=2".  Optionally, property values can be arrays, instead of keys and the resulting string that's returned will contain a name/value pair for each array value.
         * @param {Object} o
         * @return {String}
         */
        urlEncode : function(o){
            if(!o){
                return "";
            }
            var buf = [];
            for(var key in o){
                var ov = o[key], k = encodeURIComponent(key);
                var type = typeof ov;
                if(type == 'undefined'){
                    buf.push(k, "=&");
                }else if(type != "function" && type != "object"){
                    buf.push(k, "=", encodeURIComponent(ov), "&");
                }else if(ov instanceof Array){
                    if (ov.length) {
                            for(var i = 0, len = ov.length; i < len; i++) {
                                buf.push(k, "=", encodeURIComponent(ov[i] === undefined ? '' : ov[i]), "&");
                            }
                        } else {
                            buf.push(k, "=&");
                        }
                }
            }
            buf.pop();
            return buf.join("");
        },

        /**
         * Takes an encoded URL and and converts it to an object. e.g. Roo.urlDecode("foo=1&bar=2"); would return {foo: 1, bar: 2} or Roo.urlDecode("foo=1&bar=2&bar=3&bar=4", true); would return {foo: 1, bar: [2, 3, 4]}.
         * @param {String} string
         * @param {Boolean} overwrite (optional) Items of the same name will overwrite previous values instead of creating an an array (Defaults to false).
         * @return {Object} A literal with members
         */
        urlDecode : function(string, overwrite){
            if(!string || !string.length){
                return {};
            }
            var obj = {};
            var pairs = string.split('&');
            var pair, name, value;
            for(var i = 0, len = pairs.length; i < len; i++){
                pair = pairs[i].split('=');
                name = decodeURIComponent(pair[0]);
                value = decodeURIComponent(pair[1]);
                if(overwrite !== true){
                    if(typeof obj[name] == "undefined"){
                        obj[name] = value;
                    }else if(typeof obj[name] == "string"){
                        obj[name] = [obj[name]];
                        obj[name].push(value);
                    }else{
                        obj[name].push(value);
                    }
                }else{
                    obj[name] = value;
                }
            }
            return obj;
        },

        /**
         * Iterates an array calling the passed function with each item, stopping if your function returns false. If the
         * passed array is not really an array, your function is called once with it.
         * The supplied function is called with (Object item, Number index, Array allItems).
         * @param {Array/NodeList/Mixed} array
         * @param {Function} fn
         * @param {Object} scope
         */
        each : function(array, fn, scope){
            if(typeof array.length == "undefined" || typeof array == "string"){
                array = [array];
            }
            for(var i = 0, len = array.length; i < len; i++){
                if(fn.call(scope || array[i], array[i], i, array) === false){ return i; };
            }
        },

        // deprecated
        combine : function(){
            var as = arguments, l = as.length, r = [];
            for(var i = 0; i < l; i++){
                var a = as[i];
                if(a instanceof Array){
                    r = r.concat(a);
                }else if(a.length !== undefined && !a.substr){
                    r = r.concat(Array.prototype.slice.call(a, 0));
                }else{
                    r.push(a);
                }
            }
            return r;
        },

        /**
         * Escapes the passed string for use in a regular expression
         * @param {String} str
         * @return {String}
         */
        escapeRe : function(s) {
            return s.replace(/([.*+?^${}()|[\]\/\\])/g, "\\$1");
        },

        // internal
        callback : function(cb, scope, args, delay){
            if(typeof cb == "function"){
                if(delay){
                    cb.defer(delay, scope, args || []);
                }else{
                    cb.apply(scope, args || []);
                }
            }
        },

        /**
         * Return the dom node for the passed string (id), dom node, or Roo.Element
         * @param {String/HTMLElement/Roo.Element} el
         * @return HTMLElement
         */
        getDom : function(el){
            if(!el){
                return null;
            }
            return el.dom ? el.dom : (typeof el == 'string' ? document.getElementById(el) : el);
        },

        /**
        * Shorthand for {@link Roo.ComponentMgr#get}
        * @param {String} id
        * @return Roo.Component
        */
        getCmp : function(id){
            return Roo.ComponentMgr.get(id);
        },
         
        num : function(v, defaultValue){
            if(typeof v != 'number'){
                return defaultValue;
            }
            return v;
        },

        destroy : function(){
            for(var i = 0, a = arguments, len = a.length; i < len; i++) {
                var as = a[i];
                if(as){
                    if(as.dom){
                        as.removeAllListeners();
                        as.remove();
                        continue;
                    }
                    if(typeof as.purgeListeners == 'function'){
                        as.purgeListeners();
                    }
                    if(typeof as.destroy == 'function'){
                        as.destroy();
                    }
                }
            }
        },

        // inpired by a similar function in mootools library
        /**
         * Returns the type of object that is passed in. If the object passed in is null or undefined it
         * return false otherwise it returns one of the following values:<ul>
         * <li><b>string</b>: If the object passed is a string</li>
         * <li><b>number</b>: If the object passed is a number</li>
         * <li><b>boolean</b>: If the object passed is a boolean value</li>
         * <li><b>function</b>: If the object passed is a function reference</li>
         * <li><b>object</b>: If the object passed is an object</li>
         * <li><b>array</b>: If the object passed is an array</li>
         * <li><b>regexp</b>: If the object passed is a regular expression</li>
         * <li><b>element</b>: If the object passed is a DOM Element</li>
         * <li><b>nodelist</b>: If the object passed is a DOM NodeList</li>
         * <li><b>textnode</b>: If the object passed is a DOM text node and contains something other than whitespace</li>
         * <li><b>whitespace</b>: If the object passed is a DOM text node and contains only whitespace</li>
         * @param {Mixed} object
         * @return {String}
         */
        type : function(o){
            if(o === undefined || o === null){
                return false;
            }
            if(o.htmlElement){
                return 'element';
            }
            var t = typeof o;
            if(t == 'object' && o.nodeName) {
                switch(o.nodeType) {
                    case 1: return 'element';
                    case 3: return (/\S/).test(o.nodeValue) ? 'textnode' : 'whitespace';
                }
            }
            if(t == 'object' || t == 'function') {
                switch(o.constructor) {
                    case Array: return 'array';
                    case RegExp: return 'regexp';
                }
                if(typeof o.length == 'number' && typeof o.item == 'function') {
                    return 'nodelist';
                }
            }
            return t;
        },

        /**
         * Returns true if the passed value is null, undefined or an empty string (optional).
         * @param {Mixed} value The value to test
         * @param {Boolean} allowBlank (optional) Pass true if an empty string is not considered empty
         * @return {Boolean}
         */
        isEmpty : function(v, allowBlank){
            return v === null || v === undefined || (!allowBlank ? v === '' : false);
        },
        
        /** @type Boolean */
        isOpera : isOpera,
        /** @type Boolean */
        isSafari : isSafari,
        /** @type Boolean */
        isIE : isIE,
        /** @type Boolean */
        isIE7 : isIE7,
        /** @type Boolean */
        isGecko : isGecko,
        /** @type Boolean */
        isBorderBox : isBorderBox,
        /** @type Boolean */
        isWindows : isWindows,
        /** @type Boolean */
        isLinux : isLinux,
        /** @type Boolean */
        isMac : isMac,

        /**
         * By default, Ext intelligently decides whether floating elements should be shimmed. If you are using flash,
         * you may want to set this to true.
         * @type Boolean
         */
        useShims : ((isIE && !isIE7) || (isGecko && isMac))
    });


})();

Roo.namespace("Roo", "Roo.util", "Roo.grid", "Roo.dd", "Roo.tree", "Roo.data",
                "Roo.form", "Roo.menu", "Roo.state", "Roo.lib", "Roo.layout", "Roo.app", "Roo.ux");