X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/c930e9176a5a85509c5b0230e2bff5c22a591432..05ce1c11e98b33f14ddee184493bd5a60dc947e2:/docs/source/Provider.html diff --git a/docs/source/Provider.html b/docs/source/Provider.html index d420c804..b7e7780b 100644 --- a/docs/source/Provider.html +++ b/docs/source/Provider.html @@ -1,131 +1,120 @@ - - - The source code - - - - - 
/**
- * @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.
+
+
+  The source code
+    
+    
+
+
+    
/*!
+ * Ext JS Library 3.0.3
+ * Copyright(c) 2006-2009 Ext JS, LLC
+ * licensing@extjs.com
+ * http://www.extjs.com/license
  */
-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 = [];
-                var values = v.split("^");
-                for(var i = 0, len = values.length; i < len; i++){
-                    all.push(this.decodeValue(values[i]));
-                }
-                return all;
-           case "o":
-                var all = {};
-                var values = v.split("^");
-                for(var i = 0, len = values.length; i < len; i++){
-                    var kv = values[i].split("=");
-                    all[kv[0]] = this.decodeValue(kv[1]);
-                }
-                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);
-    }
-});
-
    
-
+
/**
+ * @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
+});
+
+ \ No newline at end of file