X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/0494b8d9b9bb03ab6c22b34dae81261e3cd7e3e6..7a654f8d43fdb43d78b63d90528bed6e86b608cc:/src/AbstractManager.js
diff --git a/src/AbstractManager.js b/src/AbstractManager.js
new file mode 100644
index 00000000..acb45311
--- /dev/null
+++ b/src/AbstractManager.js
@@ -0,0 +1,142 @@
+/**
+ * @class Ext.AbstractManager
+ * @extends Object
+ * @ignore
+ * Base Manager class
+ */
+
+Ext.define('Ext.AbstractManager', {
+
+ /* Begin Definitions */
+
+ requires: ['Ext.util.HashMap'],
+
+ /* End Definitions */
+
+ typeName: 'type',
+
+ constructor: function(config) {
+ Ext.apply(this, config || {});
+
+ /**
+ * Contains all of the items currently managed
+ * @property all
+ * @type Ext.util.MixedCollection
+ */
+ this.all = Ext.create('Ext.util.HashMap');
+
+ this.types = {};
+ },
+
+ /**
+ * Returns an item by id.
+ * For additional details see {@link Ext.util.HashMap#get}.
+ * @param {String} id The id of the item
+ * @return {Mixed} The item, undefined
if not found.
+ */
+ get : function(id) {
+ return this.all.get(id);
+ },
+
+ /**
+ * Registers an item to be managed
+ * @param {Mixed} item The item to register
+ */
+ register: function(item) {
+ this.all.add(item);
+ },
+
+ /**
+ * Unregisters an item by removing it from this manager
+ * @param {Mixed} item The item to unregister
+ */
+ unregister: function(item) {
+ this.all.remove(item);
+ },
+
+ /**
+ *
Registers a new item constructor, keyed by a type key.
+ * @param {String} type The mnemonic string by which the class may be looked up.
+ * @param {Constructor} cls The new instance class.
+ */
+ registerType : function(type, cls) {
+ this.types[type] = cls;
+ cls[this.typeName] = type;
+ },
+
+ /**
+ * Checks if an item type is registered.
+ * @param {String} type The mnemonic string by which the class may be looked up
+ * @return {Boolean} Whether the type is registered.
+ */
+ isRegistered : function(type){
+ return this.types[type] !== undefined;
+ },
+
+ /**
+ * Creates and returns an instance of whatever this manager manages, based on the supplied type and config object
+ * @param {Object} config The config object
+ * @param {String} defaultType If no type is discovered in the config object, we fall back to this type
+ * @return {Mixed} The instance of whatever this manager is managing
+ */
+ create: function(config, defaultType) {
+ var type = config[this.typeName] || config.type || defaultType,
+ Constructor = this.types[type];
+
+ //this
reference) in which the callback is executed. Defaults to the item.
+ */
+ onAvailable : function(id, fn, scope){
+ var all = this.all,
+ item;
+
+ if (all.containsKey(id)) {
+ item = all.get(id);
+ fn.call(scope || item, item);
+ } else {
+ all.on('add', function(map, key, item){
+ if (key == id) {
+ fn.call(scope || item, item);
+ all.un('add', fn, scope);
+ }
+ });
+ }
+ },
+
+ /**
+ * Executes the specified function once for each item in the collection.
+ * Returning false from the function will cease iteration.
+ *
+ * The paramaters passed to the function are:
+ *
The key of the item
The value of the item
The total number of items in the collection