radio/libjs/wController/controller.js
2019-02-01 22:32:51 +00:00

392 lines
13 KiB
JavaScript

"use strict";
var counter = 0;
var Subscribable = require("../utils/subscribable");
var Handler = require("../wDispatcher/handler");
var Address = require("../wType/address");
var String = require("../wType/string");
var Vocabulary = require("../wType/vocabulary");
var Event = require("../wType/event");
var counter = 0;
var Controller = Subscribable.inherit({
"className": "Controller",
"constructor": function(addr) {
Subscribable.fn.constructor.call(this);
this.id = ++counter;
this.initialized = false;
this._subscribed = false;
this._registered = false;
this._pairAddress = addr;
this._address = new Address([this.className.toString() + counter++]);
this._handlers = [];
this._controllers = [];
this.properties = [];
this._foreignControllers = [];
this.addHandler("properties");
},
"destructor": function() {
var i;
if (this._subscribed) {
this.unsubscribe();
}
if (this._registered) {
this.unregister();
}
for (i = 0; i < this._foreignControllers.length; ++i) {
this._foreignControllers[i].c.destructor();
}
for (i = 0; i < this._controllers.length; ++i) {
this._controllers[i].destructor();
}
for (i = 0; i < this._handlers.length; ++i) {
this._handlers[i].destructor();
}
this._pairAddress.destructor();
this._address.destructor();
Subscribable.fn.destructor.call(this);
},
"addController": function(controller, before) {
if (!(controller instanceof Controller)) {
throw new Error("An attempt to add not a controller into " + this.className);
}
controller.on("serviceMessage", this._onControllerServiceMessage, this);
var index = this._controllers.length;
if (before === undefined) {
this._controllers.push(controller);
} else {
index = before;
this._controllers.splice(before, 0, controller);
}
if (this._registered) {
controller.register(this._dp, this._socket);
}
if (this._subscribed && !controller._subscribed) {
this._subscribeChildController(index);
}
this.trigger("newController", controller, index);
},
"addForeignController": function(nodeName, ctrl) {
if (!(ctrl instanceof Controller)) {
throw new Error("An attempt to add not a controller into " + this.className);
}
this._foreignControllers.push({n: nodeName, c: ctrl});
ctrl.on("serviceMessage", this._onControllerServiceMessage, this);
if (this._registered) {
global.registerForeignController(nodeName, ctrl);
}
if (this._subscribed) {
global.subscribeForeignController(nodeName, ctrl);
}
},
"addHandler": function(name) {
if (!(this["_h_" + name] instanceof Function)) {
throw new Error("An attempt to create handler without a handling method");
}
var handler = new Handler(this._address["+"](new Address([name])), this, this["_h_" + name]);
this._handlers.push(handler);
if (this._registered) {
this._dp.registerHandler(handler);
}
},
"clearChildren": function() {
while (this._controllers.length) {
var controller = this._controllers[this._controllers.length - 1]
this._removeController(controller);
controller.destructor();
}
},
"_createSubscriptionVC": function() {
return new Vocabulary();
},
"getPairAddress": function() {
return this._pairAddress.clone();
},
"_h_properties": function(ev) {
this.trigger("clearProperties");
this.properties = [];
var data = ev.getData();
var list = data.at("properties");
var size = list.length();
for (var i = 0; i < size; ++i) {
var vc = list.at(i);
var pair = {p: vc.at("property").toString(), k: vc.at("key").toString()};
this.properties.push(pair);
this.trigger("addProperty", pair.k, pair.p);
}
},
"_onControllerServiceMessage": function(msg, severity) {
this.trigger("serviceMessage", msg, severity);
},
"_onSocketDisconnected": function() {
this._subscribed = false;
},
"register": function(dp, socket) {
var i;
if (this._registered) {
throw new Error("Controller " + this._address.toString() + " is already registered");
}
this._dp = dp;
this._socket = socket;
socket.on("disconnected", this._onSocketDisconnected, this);
for (i = 0; i < this._controllers.length; ++i) {
this._controllers[i].register(this._dp, this._socket);
}
for (i = 0; i < this._handlers.length; ++i) {
dp.registerHandler(this._handlers[i]);
}
for (i = 0; i < this._foreignControllers.length; ++i) {
var pair = this._foreignControllers[i]
global.registerForeignController(pair.n, pair.c);
}
this._registered = true;
},
"removeController": function(ctrl) {
if (!(ctrl instanceof Controller)) {
throw new Error("An attempt to remove not a controller from " + this.className);
}
var index = this._controllers.indexOf(ctrl);
if (index !== -1) {
this._removeControllerByIndex(index);
} else {
throw new Error("An attempt to remove not not existing controller from " + this.className);
}
},
"removeForeignController": function(ctrl) {
if (!(ctrl instanceof Controller)) {
throw new Error("An attempt to remove not a controller from " + this.className);
}
for (var i = 0; i < this._foreignControllers.length; ++i) {
if (this._foreignControllers[i].c === ctrl) {
break;
}
}
if (i === this._foreignControllers.length) {
throw new Error("An attempt to remove not not existing controller from " + this.className);
} else {
var pair = this._foreignControllers[i];
if (this._subscribed) {
global.unsubscribeForeignController(pair.n, pair.c);
}
if (this._registered) {
global.registerForeignController(pair.n, pair.c);
}
pair.c.off("serviceMessage", this._onControllerServiceMessage, this);
this._foreignControllers.splice(i, 1);
}
},
"_removeControllerByIndex": function(index) {
var ctrl = this._controllers[index];
if (this._subscribed) {
this._unsubscribeChildController(index);
}
if (this._dp) {
ctrl.unregister();
}
this._controllers.splice(index, 1);
this.trigger("removedController", ctrl, index);
},
"send": function(vc, handler) {
if (!this._registered) {
throw new Error("An attempt to send event from model " + this._address.toString() + " which is not registered");
}
var addr = this._pairAddress["+"](new Address([handler]));
var id = this._socket.getId().clone();
vc.insert("source", this._address.clone());
var ev = new Event(addr, vc);
ev.setSenderId(id);
this._socket.send(ev);
ev.destructor();
},
"subscribe": function() {
if (this._subscribed) {
throw new Error("An attempt to subscribe model " + this._address.toString() + " which is already subscribed");
}
this._subscribed = true;
var vc = this._createSubscriptionVC();
this.send(vc, "subscribe");
for (var i = 0; i < this._controllers.length; ++i) {
this._subscribeChildController(i)
}
for (var i = 0; i < this._foreignControllers.length; ++i) {
var pair = this._foreignControllers[i]
global.subscribeForeignController(pair.n, pair.c);
}
},
"_subscribeChildController": function(index) {
var ctrl = this._controllers[index];
ctrl.subscribe();
},
"unregister": function() {
if (!this._registered) {
throw new Error("Controller " + this._address.toString() + " is not registered");
}
var i;
for (i = 0; i < this._foreignControllers.length; ++i) {
var pair = this._foreignControllers[i]
global.unregisterForeignController(pair.n, pair.c);
}
for (i = 0; i < this._controllers.length; ++i) {
this._controllers[i].unregister();
}
for (i = 0; i < this._handlers.length; ++i) {
this._dp.unregisterHandler(this._handlers[i]);
}
this._socket.off("disconnected", this._onSocketDisconnected, this);
delete this._dp;
delete this._socket;
this._registered = false;
},
"unsubscribe": function() {
if (!this._subscribed) {
throw new Error("An attempt to unsubscribe model " + this._address.toString() + " which is not subscribed");
}
this._subscribed = false;
if (this._socket.isOpened()) {
var vc = new Vocabulary();
this.send(vc, "unsubscribe");
}
for (var i = 0; i < this._foreignControllers.length; ++i) {
var pair = this._foreignControllers[i]
global.unsubscribeForeignController(pair.n, pair.c);
}
for (var i = 0; i < this._controllers.length; ++i) {
this._unsubscribeChildController(i);
}
},
"_unsubscribeChildController": function(index) {
var ctrl = this._controllers[index];
ctrl.unsubscribe();
}
});
Controller.createByType = function(type, address) {
var typeName = this.ReversedModelType[type];
if (typeName === undefined) {
throw new Error("Unknown ModelType: " + type);
}
var Type = this.constructors[typeName];
if (Type === undefined) {
throw new Error("Constructor is not loaded yet, something is wrong");
}
return new Type(address);
}
Controller.initialize = function(rc, cb) {
var deps = [];
var types = [];
for (var key in this.ModelTypesPaths) {
if (this.ModelTypesPaths.hasOwnProperty(key)) {
if (!rc || rc.indexOf(key) !== -1) {
deps.push(this.ModelTypesPaths[key]);
types.push(key);
}
}
}
require(deps, function() {
for (var i = 0; i < types.length; ++i) {
Controller.constructors[types[i]] = arguments[i];
}
cb();
});
}
Controller.ModelType = {
String: 0,
List: 1,
Vocabulary: 2,
Catalogue: 3,
Image: 4,
Button: 5,
Controller: 6,
Attributes: 50,
GlobalControls: 100,
Link: 101,
Page: 102,
PageStorage: 103,
PanesList: 104,
Theme: 105,
ThemeStorage: 106,
Player: 107
};
Controller.ReversedModelType = {
"0": "String",
"1": "List",
"2": "Vocabulary",
"3": "Catalogue",
"4": "Image",
"5": "Button",
"6": "Controller",
"50": "Attributes",
"100": "GlobalControls",
"101": "Link",
"102": "Page",
"103": "PageStorage",
"104": "PanesList",
"105": "Theme",
"106": "ThemeStorage",
"107": "Player"
};
Controller.ModelTypesPaths = {
String: "./string", //resolve as dependency
List: "./list", //resolve as dependency
Vocabulary: "./vocabulary", //resolve as dependency
Attributes: "./attributes", //resolve as dependency
GlobalControls: "./globalControls", //resolve as dependency
Link: "./link", //resolve as dependency
Page: "./page", //resolve as dependency
PageStorage: "./pageStorage", //resolve as dependency
PanesList: "./panesList", //resolve as dependency
Theme: "./theme", //resolve as dependency
ThemeStorage: "./themeStorage", //resolve as dependency
Image: "./image", //resolve as dependency
Button: "./button", //resolve as dependency
Catalogue: "./catalogue", //resolve as dependency
Player: "./player" //resolve as dependency
};
Controller.constructors = {
Controller: Controller
};
module.exports = Controller;