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Diffstat (limited to 'includes/js/dojo/_base/connect.js')
| -rw-r--r-- | includes/js/dojo/_base/connect.js | 285 |
1 files changed, 0 insertions, 285 deletions
diff --git a/includes/js/dojo/_base/connect.js b/includes/js/dojo/_base/connect.js deleted file mode 100644 index 5111372..0000000 --- a/includes/js/dojo/_base/connect.js +++ /dev/null @@ -1,285 +0,0 @@ -if(!dojo._hasResource["dojo._base.connect"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. -dojo._hasResource["dojo._base.connect"] = true; -dojo.provide("dojo._base.connect"); -dojo.require("dojo._base.lang"); - -// this file courtesy of the TurboAjax Group, licensed under a Dojo CLA - -// low-level delegation machinery -dojo._listener = { - // create a dispatcher function - getDispatcher: function(){ - // following comments pulled out-of-line to prevent cloning them - // in the returned function. - // - indices (i) that are really in the array of listeners (ls) will - // not be in Array.prototype. This is the 'sparse array' trick - // that keeps us safe from libs that take liberties with built-in - // objects - // - listener is invoked with current scope (this) - return function(){ - var ap=Array.prototype, c=arguments.callee, ls=c._listeners, t=c.target; - // return value comes from original target function - var r=t && t.apply(this, arguments); - // invoke listeners after target function - for(var i in ls){ - if(!(i in ap)){ - ls[i].apply(this, arguments); - } - } - // return value comes from original target function - return r; - } - }, - // add a listener to an object - add: function(/*Object*/ source, /*String*/ method, /*Function*/ listener){ - // Whenever 'method' is invoked, 'listener' will have the same scope. - // Trying to supporting a context object for the listener led to - // complexity. - // Non trivial to provide 'once' functionality here - // because listener could be the result of a dojo.hitch call, - // in which case two references to the same hitch target would not - // be equivalent. - source = source || dojo.global; - // The source method is either null, a dispatcher, or some other function - var f = source[method]; - // Ensure a dispatcher - if(!f||!f._listeners){ - var d = dojo._listener.getDispatcher(); - // original target function is special - d.target = f; - // dispatcher holds a list of listeners - d._listeners = []; - // redirect source to dispatcher - f = source[method] = d; - } - // The contract is that a handle is returned that can - // identify this listener for disconnect. - // - // The type of the handle is private. Here is it implemented as Integer. - // DOM event code has this same contract but handle is Function - // in non-IE browsers. - // - // We could have separate lists of before and after listeners. - return f._listeners.push(listener) ; /*Handle*/ - }, - // remove a listener from an object - remove: function(/*Object*/ source, /*String*/ method, /*Handle*/ handle){ - var f = (source||dojo.global)[method]; - // remember that handle is the index+1 (0 is not a valid handle) - if(f && f._listeners && handle--){ - delete f._listeners[handle]; - } - } -}; - -// Multiple delegation for arbitrary methods. - -// This unit knows nothing about DOM, -// but we include DOM aware -// documentation and dontFix -// argument here to help the autodocs. -// Actual DOM aware code is in event.js. - -dojo.connect = function(/*Object|null*/ obj, - /*String*/ event, - /*Object|null*/ context, - /*String|Function*/ method, - /*Boolean*/ dontFix){ - // summary: - // Create a link that calls one function when another executes. - // - // description: - // Connects method to event, so that after event fires, method - // does too. All connected functions are passed the same arguments as - // the event function was initially called with. You may connect as - // many methods to event as needed. - // - // event must be a string. If obj is null, dojo.global is used. - // - // null arguments may simply be omitted. - // - // obj[event] can resolve to a function or undefined (null). - // If obj[event] is null, it is assigned a function. - // - // The return value is a handle that is needed to - // remove this connection with dojo.disconnect. - // - // obj: - // The source object for the event function. - // Defaults to dojo.global if null. - // If obj is a DOM node, the connection is delegated - // to the DOM event manager (unless dontFix is true). - // - // event: - // String name of the event function in obj. - // I.e. identifies a property obj[event]. - // - // context: - // The object that method will receive as "this". - // - // If context is null and method is a function, then method - // inherits the context of event. - // - // If method is a string then context must be the source - // object object for method (context[method]). If context is null, - // dojo.global is used. - // - // method: - // A function reference, or name of a function in context. - // The function identified by method fires after event does. - // method receives the same arguments as the event. - // See context argument comments for information on method's scope. - // - // dontFix: - // If obj is a DOM node, set dontFix to true to prevent delegation - // of this connection to the DOM event manager. - // - // example: - // When obj.onchange(), do ui.update(): - // | dojo.connect(obj, "onchange", ui, "update"); - // | dojo.connect(obj, "onchange", ui, ui.update); // same - // - // example: - // Using return value for disconnect: - // | var link = dojo.connect(obj, "onchange", ui, "update"); - // | ... - // | dojo.disconnect(link); - // - // example: - // When onglobalevent executes, watcher.handler is invoked: - // | dojo.connect(null, "onglobalevent", watcher, "handler"); - // - // example: - // When ob.onCustomEvent executes, customEventHandler is invoked: - // | dojo.connect(ob, "onCustomEvent", null, "customEventHandler"); - // | dojo.connect(ob, "onCustomEvent", "customEventHandler"); // same - // - // example: - // When ob.onCustomEvent executes, customEventHandler is invoked - // with the same scope (this): - // | dojo.connect(ob, "onCustomEvent", null, customEventHandler); - // | dojo.connect(ob, "onCustomEvent", customEventHandler); // same - // - // example: - // When globalEvent executes, globalHandler is invoked - // with the same scope (this): - // | dojo.connect(null, "globalEvent", null, globalHandler); - // | dojo.connect("globalEvent", globalHandler); // same - - // normalize arguments - var a=arguments, args=[], i=0; - // if a[0] is a String, obj was ommited - args.push(dojo.isString(a[0]) ? null : a[i++], a[i++]); - // if the arg-after-next is a String or Function, context was NOT omitted - var a1 = a[i+1]; - args.push(dojo.isString(a1)||dojo.isFunction(a1) ? a[i++] : null, a[i++]); - // absorb any additional arguments - for(var l=a.length; i<l; i++){ args.push(a[i]); } - // do the actual work - return dojo._connect.apply(this, args); /*Handle*/ -} - -// used by non-browser hostenvs. always overriden by event.js -dojo._connect = function(obj, event, context, method){ - var l=dojo._listener, h=l.add(obj, event, dojo.hitch(context, method)); - return [obj, event, h, l]; // Handle -} - -dojo.disconnect = function(/*Handle*/ handle){ - // summary: - // Remove a link created by dojo.connect. - // description: - // Removes the connection between event and the method referenced by handle. - // handle: - // the return value of the dojo.connect call that created the connection. - if(handle && handle[0] !== undefined){ - dojo._disconnect.apply(this, handle); - // let's not keep this reference - delete handle[0]; - } -} - -dojo._disconnect = function(obj, event, handle, listener){ - listener.remove(obj, event, handle); -} - -// topic publish/subscribe - -dojo._topics = {}; - -dojo.subscribe = function(/*String*/ topic, /*Object|null*/ context, /*String|Function*/ method){ - // summary: - // Attach a listener to a named topic. The listener function is invoked whenever the - // named topic is published (see: dojo.publish). - // Returns a handle which is needed to unsubscribe this listener. - // context: - // Scope in which method will be invoked, or null for default scope. - // method: - // The name of a function in context, or a function reference. This is the function that - // is invoked when topic is published. - // example: - // | dojo.subscribe("alerts", null, function(caption, message){ alert(caption + "\n" + message); }; - // | dojo.publish("alerts", [ "read this", "hello world" ]); - - // support for 2 argument invocation (omitting context) depends on hitch - return [topic, dojo._listener.add(dojo._topics, topic, dojo.hitch(context, method))]; /*Handle*/ -} - -dojo.unsubscribe = function(/*Handle*/ handle){ - // summary: - // Remove a topic listener. - // handle: - // The handle returned from a call to subscribe. - // example: - // | var alerter = dojo.subscribe("alerts", null, function(caption, message){ alert(caption + "\n" + message); }; - // | ... - // | dojo.unsubscribe(alerter); - if(handle){ - dojo._listener.remove(dojo._topics, handle[0], handle[1]); - } -} - -dojo.publish = function(/*String*/ topic, /*Array*/ args){ - // summary: - // Invoke all listener method subscribed to topic. - // topic: - // The name of the topic to publish. - // args: - // An array of arguments. The arguments will be applied - // to each topic subscriber (as first class parameters, via apply). - // example: - // | dojo.subscribe("alerts", null, function(caption, message){ alert(caption + "\n" + message); }; - // | dojo.publish("alerts", [ "read this", "hello world" ]); - - // Note that args is an array, which is more efficient vs variable length - // argument list. Ideally, var args would be implemented via Array - // throughout the APIs. - var f = dojo._topics[topic]; - if(f){ - f.apply(this, args||[]); - } -} - -dojo.connectPublisher = function( /*String*/ topic, - /*Object|null*/ obj, - /*String*/ event){ - // summary: - // Ensure that everytime obj.event() is called, a message is published - // on the topic. Returns a handle which can be passed to - // dojo.disconnect() to disable subsequent automatic publication on - // the topic. - // topic: - // The name of the topic to publish. - // obj: - // The source object for the event function. Defaults to dojo.global - // if null. - // event: - // The name of the event function in obj. - // I.e. identifies a property obj[event]. - // example: - // | dojo.connectPublisher("/ajax/start", dojo, "xhrGet"}; - var pf = function(){ dojo.publish(topic, arguments); } - return (event) ? dojo.connect(obj, event, pf) : dojo.connect(obj, pf); //Handle -}; - -} |