radio/libjs/wDispatcher/dispatcher.js

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2018-08-04 21:46:25 +00:00
"use strict";
var Class = require("../utils/class");
var Handler = require("./handler");
var DefaultHandler = require("./defaulthandler");
var Address = require("../wType/address");
var AbstractMap = require("../wContainer/abstractmap");
var AbstractOrder = require("../wContainer/abstractorder");
var HandlerOrder = AbstractOrder.template(Handler);
var DefaultHandlerOrder = AbstractOrder.template(DefaultHandler);
var HandlerMap = AbstractMap.template(Address, HandlerOrder);
var Dispatcher = Class.inherit({
"className": "Dispatcher",
"constructor": function() {
Class.fn.constructor.call(this);
this._handlers = new HandlerMap();
this._defautHandlers = new DefaultHandlerOrder(false);
},
"destructor": function() {
this._handlers.destructor();
Class.fn.destructor.call(this);
},
"registerHandler": function(handler) {
var itr = this._handlers.find(handler.address);
var order;
if (itr["=="](this._handlers.end())) {
order = new HandlerOrder(false);
this._handlers.insert(handler.address.clone(), order);
} else {
order = itr["*"]();
}
order.push_back(handler);
},
"unregisterHandler": function(handler) {
var itr = this._handlers.find(handler.address);
if (!itr["=="](this._handlers.end())) {
var ord = itr["*"]().second;
ord.erase(handler);
if (ord.size() === 0) {
this._handlers.erase(itr);
}
} else {
throw new Error("Can't unregister hander");
}
},
"registerDefaultHandler": function(dh) {
this._defautHandlers.push_back(dh);
},
"unregisterDefaultHandler": function(dh) {
this._defautHandlers.erase(dh);
},
"pass": function(event) {
var itr = this._handlers.find(event.getDestination());
if (!itr["=="](this._handlers.end())) {
var ord = itr["*"]().second;
var o_beg = ord.begin();
var o_end = ord.end();
var hands = [];
for (; !o_beg["=="](o_end); o_beg["++"]()) {
hands.push(o_beg["*"]());
}
for (var i = 0; i < hands.length; ++i) {
hands[i].pass(event)
}
} else {
var dhitr = this._defautHandlers.begin();
var dhend = this._defautHandlers.end();
for (; !dhitr["=="](dhend); dhitr["++"]()) {
if (dhitr["*"]().call(event)) {
break;
}
}
}
}
});
module.exports = Dispatcher;