gallery-2010.11.03-19-46 ghinch gallery-datasource-manage-stale

src/gallery-datasource-manage-stale/build.properties

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+# MyComponent Build Properties
+
+# As long as the 'builder' project is cloned to the default folder
+# next to the 'yui3' project folder, the 'builddir' property does not 
+# need to be changed
+#
+# If the 'builder' project is checked out to an alternate location, this
+# property should be updated to point to the checkout location.
+builddir=../../../builder/componentbuild
+
+# The name of the component. E.g. event, attribute, widget 
+component=gallery-datasource-manage-stale
+
+# The list of files which should be concatenated to create the component.
+# NOTE: For a css component (e.g. cssfonts, cssgrids etc.) use component.cssfiles instead. 
+component.jsfiles=manage-stale.js
+
+# The list of modules this component requires. Used to setup the Y.add module call for YUI 3.
+# NOTE: For a css component, this property is not used/required.
+
+# component.use, component.supersedes, component.optional and component.skinnable are other properties which can be defined
+component.requires=datasource-local
+component.builddir=../../tmp

src/gallery-datasource-manage-stale/build.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+
+<!-- YUI 3 Component Build File -->
+
+<project name="DataSourceManageStale" default="local">
+    <description>Gallery DataSource Manage Stale Build File</description>
+    <property file="build.properties" />
+    <import file="${builddir}/3.x/bootstrap.xml" description="Default Build Properties and Targets" />
+</project>

src/gallery-datasource-manage-stale/js/manage-stale.js

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+var IGNORE_STALE_RESPONSES = 'ignoreStaleResponses',
+	CANCEL_STALE_REQUESTS = 'cancelStaleRequests',
+	DATA = 'data',
+	HOST = 'host',
+	DEF_REQUEST_FN = '_defRequestFn';
+
+Y.namespace('Plugin').DataSourceManageStale = Y.Base.create('datasource-manage-stale', Y.Plugin.Base, [], {
+	_lastId : null,
+	_transactions : null,
+
+	_doBeforeData : function (e) {
+		if (!this._transactions[e.tId] || (this.get(IGNORE_STALE_RESPONSES) && e.tId != this._lastId)) {
+			e.halt();
+		}
+	},
+
+	_doBeforeDefRequestFn : function (e) {
+		if (this.get(CANCEL_STALE_REQUESTS)) {
+			Y.Object.each(this._transactions, function (t, id) {
+				if (t.abort) {
+					t.abort();
+					delete this._transactions[id];
+					delete Y.DataSource.Local.transactions[id];
+				}
+			}, this);
+		}
+	},
+
+	_doAfterDefRequestFn : function (e) {
+		if (this.get(IGNORE_STALE_RESPONSES)) {
+			this._lastId = e.tId;
+		}
+
+		this._transactions[e.tId] = Y.DataSource.Local.transactions[e.tId];
+	},
+
+	initializer : function () {
+		this._transactions = {};
+
+		this.doBefore(DATA, this._doBeforeData, this);
+		this.doBefore(DEF_REQUEST_FN, this._doBeforeDefRequestFn, this);
+		this.doAfter(DEF_REQUEST_FN, this._doAfterDefRequestFn, this);
+	}
+}, {
+	NS : 'stale',
+
+	ATTRS : {
+		cancelStaleRequests : {
+			value : false
+		},
+		ignoreStaleResponses : {
+			value : false
+		}
+	}
+});