diff options
Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.6.2/tutorials/store/store-mashup/openajax/OpenAjax.js')
| -rw-r--r-- | sca-java-1.x/branches/sca-java-1.6.2/tutorials/store/store-mashup/openajax/OpenAjax.js | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.6.2/tutorials/store/store-mashup/openajax/OpenAjax.js b/sca-java-1.x/branches/sca-java-1.6.2/tutorials/store/store-mashup/openajax/OpenAjax.js new file mode 100644 index 0000000000..e1a855d1c0 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.6.2/tutorials/store/store-mashup/openajax/OpenAjax.js @@ -0,0 +1,193 @@ +/*******************************************************************************
+ * OpenAjax.js
+ *
+ * Reference implementation of the OpenAjax Hub, as specified by OpenAjax Alliance.
+ * Specification is under development at:
+ *
+ * http://www.openajax.org/member/wiki/OpenAjax_Hub_Specification
+ *
+ * Copyright 2006-2008 OpenAjax Alliance
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0 . Unless
+ * required by applicable law or agreed to in writing, software distributed
+ * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations under the License.
+ *
+ ******************************************************************************/
+ +// prevent re-definition of the OpenAjax object +if(!window["OpenAjax"]){
+ OpenAjax = new function(){ + var t = true; + var f = false; + var g = window;
+ var libs;
+ var ooh = "org.openajax.hub."; +
+ var h = {};
+ this.hub = h;
+ h.implementer = "http://openajax.org";
+ h.implVersion = "1.0";
+ h.specVersion = "1.0";
+ h.implExtraData = {};
+ var libs = {};
+ h.libraries = libs; +
+ h.registerLibrary = function(prefix, nsURL, version, extra){
+ libs[prefix] = { + prefix: prefix, + namespaceURI: nsURL, + version: version, + extraData: extra + };
+ this.publish(ooh+"registerLibrary", libs[prefix]); + }
+ h.unregisterLibrary = function(prefix){ + this.publish(ooh+"unregisterLibrary", libs[prefix]); + delete libs[prefix];
+ }
+
+ h._subscriptions = { c:{}, s:[] };
+ h._cleanup = [];
+ h._subIndex = 0;
+ h._pubDepth = 0;
+
+ h.subscribe = function(name, callback, scope, subscriberData, filter)
+ {
+ if(!scope){
+ scope = window;
+ }
+ var handle = name + "." + this._subIndex;
+ var sub = { scope: scope, cb: callback, fcb: filter, data: subscriberData, sid: this._subIndex++, hdl: handle };
+ var path = name.split(".");
+ this._subscribe(this._subscriptions, path, 0, sub);
+ return handle;
+ }
+
+ h.publish = function(name, message)
+ {
+ var path = name.split(".");
+ this._pubDepth++;
+ this._publish(this._subscriptions, path, 0, name, message);
+ this._pubDepth--;
+ if((this._cleanup.length > 0) && (this._pubDepth == 0)) {
+ for(var i = 0; i < this._cleanup.length; i++)
+ this.unsubscribe(this._cleanup[i].hdl);
+ delete(this._cleanup);
+ this._cleanup = [];
+ }
+ }
+
+ h.unsubscribe = function(sub)
+ {
+ var path = sub.split(".");
+ var sid = path.pop();
+ this._unsubscribe(this._subscriptions, path, 0, sid);
+ }
+
+ h._subscribe = function(tree, path, index, sub)
+ {
+ var token = path[index];
+ if(index == path.length)
+ tree.s.push(sub);
+ else {
+ if(typeof tree.c == "undefined")
+ tree.c = {};
+ if(typeof tree.c[token] == "undefined") {
+ tree.c[token] = { c: {}, s: [] };
+ this._subscribe(tree.c[token], path, index + 1, sub);
+ }
+ else
+ this._subscribe( tree.c[token], path, index + 1, sub);
+ }
+ }
+
+ h._publish = function(tree, path, index, name, msg) {
+ if(typeof tree != "undefined") {
+ var node;
+ if(index == path.length) {
+ node = tree;
+ } else {
+ this._publish(tree.c[path[index]], path, index + 1, name, msg);
+ this._publish(tree.c["*"], path, index + 1, name, msg);
+ node = tree.c["**"];
+ }
+ if(typeof node != "undefined") {
+ var callbacks = node.s;
+ var max = callbacks.length;
+ for(var i = 0; i < max; i++) {
+ if(callbacks[i].cb) {
+ var sc = callbacks[i].scope;
+ var cb = callbacks[i].cb;
+ var fcb = callbacks[i].fcb;
+ var d = callbacks[i].data;
+ if(typeof cb == "string"){
+ // get a function object
+ cb = sc[cb];
+ }
+ if(typeof fcb == "string"){
+ // get a function object
+ fcb = sc[fcb];
+ }
+ if((!fcb) ||
+ (fcb.call(sc, name, msg, d))) {
+ cb.call(sc, name, msg, d);
+ }
+ }
+ }
+ }
+ }
+ }
+
+ h._unsubscribe = function(tree, path, index, sid) {
+ if(typeof tree != "undefined") {
+ if(index < path.length) {
+ var childNode = tree.c[path[index]];
+ this._unsubscribe(childNode, path, index + 1, sid);
+ if(childNode.s.length == 0) {
+ for(var x in childNode.c)
+ return;
+ delete tree.c[path[index]];
+ }
+ return;
+ }
+ else {
+ var callbacks = tree.s;
+ var max = callbacks.length;
+ for(var i = 0; i < max; i++)
+ if(sid == callbacks[i].sid) {
+ if(this._pubDepth > 0) {
+ callbacks[i].cb = null;
+ this._cleanup.push(callbacks[i]);
+ }
+ else
+ callbacks.splice(i, 1);
+ return;
+ }
+ }
+ }
+ }
+ // The following function is provided for automatic testing purposes.
+ // It is not expected to be deployed in run-time OpenAjax Hub implementations.
+ h.reinit = function()
+ {
+ for (var lib in OpenAjax.hub.libraries) {
+ delete OpenAjax.hub.libraries[lib];
+ }
+ OpenAjax.hub.registerLibrary("OpenAjax", "http://openajax.org/hub", "1.0", {});
+
+ delete OpenAjax._subscriptions;
+ OpenAjax._subscriptions = {c:{},s:[]};
+ delete OpenAjax._cleanup;
+ OpenAjax._cleanup = [];
+ OpenAjax._subIndex = 0;
+ OpenAjax._pubDepth = 0;
+ }
+ };
+ // Register the OpenAjax Hub itself as a library.
+ OpenAjax.hub.registerLibrary("OpenAjax", "http://openajax.org/hub", "1.0", {});
+ +}
|