X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/c930e9176a5a85509c5b0230e2bff5c22a591432..c8256059947f3aa8f5b0a9a2acf55e2142bb4742:/docs/source/Provider1.html diff --git a/docs/source/Provider1.html b/docs/source/Provider1.html index be85455e..0962ea9f 100644 --- a/docs/source/Provider1.html +++ b/docs/source/Provider1.html @@ -1,114 +1,140 @@ - - - The source code - - - - - 
/**
- * @class Ext.direct.Provider
- * @extends Ext.util.Observable
- * 
Ext.direct.Provider is an abstract class meant to be extended.

- * 
- * 
For example ExtJs implements the following subclasses:

- * 

-Provider
-|
-+---{@link Ext.direct.JsonProvider JsonProvider} 
-    |
-    +---{@link Ext.direct.PollingProvider PollingProvider}   
-    |
-    +---{@link Ext.direct.RemotingProvider RemotingProvider}   
- * 

- * @abstract
- */
-Ext.direct.Provider = Ext.extend(Ext.util.Observable, {    
-    
/**
-     * @cfg {String} id
-     * The unique id of the provider (defaults to an {@link Ext#id auto-assigned id}).
-     * You should assign an id if you need to be able to access the provider later and you do
-     * not have an object reference available, for example:
-     * 

-Ext.Direct.addProvider(
-    {
-        type: 'polling',
-        url:  'php/poll.php',
-        id:   'poll-provider'
-    }
-);
-     
-var p = {@link Ext.Direct Ext.Direct}.{@link Ext.Direct#getProvider getProvider}('poll-provider');
-p.disconnect();
-     * 

-     */
-        
-    
/**
-     * @cfg {Number} priority
-     * Priority of the request. Lower is higher priority, 0 means "duplex" (always on).
-     * All Providers default to 1 except for PollingProvider which defaults to 3.
-     */    
-    priority: 1,
-
-    
/**
-     * @cfg {String} type
-     * Required, undefined by default.  The type of provider specified
-     * to {@link Ext.Direct Ext.Direct}.{@link Ext.Direct#addProvider addProvider} to create a
-     * new Provider. Acceptable values by default are:

-     */    
- 
-    // private
-    constructor : function(config){
-        Ext.apply(this, config);
-        this.addEvents(
-            
/**
-             * @event connect
-             * Fires when the Provider connects to the server-side
-             * @param {Ext.direct.Provider} provider The {@link Ext.direct.Provider Provider}.
-             */            
-            'connect',
-            
/**
-             * @event disconnect
-             * Fires when the Provider disconnects from the server-side
-             * @param {Ext.direct.Provider} provider The {@link Ext.direct.Provider Provider}.
-             */            
-            'disconnect',
-            
/**
-             * @event data
-             * Fires when the Provider receives data from the server-side
-             * @param {Ext.direct.Provider} provider The {@link Ext.direct.Provider Provider}.
-             * @param {event} e The {@link Ext.Direct#eventTypes Ext.Direct.Event type} that occurred.
-             */            
-            'data',
-            
/**
-             * @event exception
-             * Fires when the Provider receives an exception from the server-side
-             */                        
-            'exception'
-        );
-        Ext.direct.Provider.superclass.constructor.call(this, config);
-    },
-
-    
/**
-     * Returns whether or not the server-side is currently connected.
-     * Abstract method for subclasses to implement.
-     */
-    isConnected: function(){
-        return false;
-    },
-
-    
/**
-     * Abstract methods for subclasses to implement.
-     */
-    connect: Ext.emptyFn,
-    
-    
/**
-     * Abstract methods for subclasses to implement.
-     */
-    disconnect: Ext.emptyFn
-});
-
- + + + + The source code + + + + + 
/*!
+ * Ext JS Library 3.2.1
+ * Copyright(c) 2006-2010 Ext JS, Inc.
+ * licensing@extjs.com
+ * http://www.extjs.com/license
+ */
+
/**
+ * @class Ext.state.Provider
+ * Abstract base class for state provider implementations. This class provides methods
+ * for encoding and decoding typed variables including dates and defines the
+ * Provider interface.
+ */
+Ext.state.Provider = function(){
+    
/**
+     * @event statechange
+     * Fires when a state change occurs.
+     * @param {Provider} this This state provider
+     * @param {String} key The state key which was changed
+     * @param {String} value The encoded value for the state
+     */
+    this.addEvents("statechange");
+    this.state = {};
+    Ext.state.Provider.superclass.constructor.call(this);
+};
+Ext.extend(Ext.state.Provider, Ext.util.Observable, {
+    
/**
+     * Returns the current value for a key
+     * @param {String} name The key name
+     * @param {Mixed} defaultValue A default value to return if the key's value is not found
+     * @return {Mixed} The state data
+     */
+    get : function(name, defaultValue){
+        return typeof this.state[name] == "undefined" ?
+            defaultValue : this.state[name];
+    },
+
+    
/**
+     * Clears a value from the state
+     * @param {String} name The key name
+     */
+    clear : function(name){
+        delete this.state[name];
+        this.fireEvent("statechange", this, name, null);
+    },
+
+    
/**
+     * Sets the value for a key
+     * @param {String} name The key name
+     * @param {Mixed} value The value to set
+     */
+    set : function(name, value){
+        this.state[name] = value;
+        this.fireEvent("statechange", this, name, value);
+    },
+
+    
/**
+     * Decodes a string previously encoded with {@link #encodeValue}.
+     * @param {String} value The value to decode
+     * @return {Mixed} The decoded value
+     */
+    decodeValue : function(cookie){
+        var re = /^(a|n|d|b|s|o)\:(.*)$/;
+        var matches = re.exec(unescape(cookie));
+        if(!matches || !matches[1]) return; // non state cookie
+        var type = matches[1];
+        var v = matches[2];
+        switch(type){
+            case "n":
+                return parseFloat(v);
+            case "d":
+                return new Date(Date.parse(v));
+            case "b":
+                return (v == "1");
+            case "a":
+                var all = [];
+                if(v != ''){
+                    Ext.each(v.split('^'), function(val){
+                        all.push(this.decodeValue(val));
+                    }, this);
+                }
+                return all;
+           case "o":
+                var all = {};
+                if(v != ''){
+                    Ext.each(v.split('^'), function(val){
+                        var kv = val.split('=');
+                        all[kv[0]] = this.decodeValue(kv[1]);
+                    }, this);
+                }
+                return all;
+           default:
+                return v;
+        }
+    },
+
+    
/**
+     * Encodes a value including type information.  Decode with {@link #decodeValue}.
+     * @param {Mixed} value The value to encode
+     * @return {String} The encoded value
+     */
+    encodeValue : function(v){
+        var enc;
+        if(typeof v == "number"){
+            enc = "n:" + v;
+        }else if(typeof v == "boolean"){
+            enc = "b:" + (v ? "1" : "0");
+        }else if(Ext.isDate(v)){
+            enc = "d:" + v.toGMTString();
+        }else if(Ext.isArray(v)){
+            var flat = "";
+            for(var i = 0, len = v.length; i < len; i++){
+                flat += this.encodeValue(v[i]);
+                if(i != len-1) flat += "^";
+            }
+            enc = "a:" + flat;
+        }else if(typeof v == "object"){
+            var flat = "";
+            for(var key in v){
+                if(typeof v[key] != "function" && v[key] !== undefined){
+                    flat += key + "=" + this.encodeValue(v[key]) + "^";
+                }
+            }
+            enc = "o:" + flat.substring(0, flat.length-1);
+        }else{
+            enc = "s:" + v;
+        }
+        return escape(enc);
+    }
+});
+
+ \ No newline at end of file