в Вконтакте. Как работать с ним понятно. Но я решил копнуть дальше.
Полез в класс APIConnection.
Вот код класса полностью.
Код AS3:
package vk {
import flash.net.LocalConnection;
import flash.external.ExternalInterface;
import flash.events.*;
import flash.utils.setTimeout;
import vk.events.*;
import vk.api.DataProvider;
/**
* @author Andrew Rogozov
*/
public class APIConnection extends EventDispatcher {
private var sendingLC: LocalConnection;
private var connectionName: String;
private var receivingLC: LocalConnection;
private var pendingRequests: Array;
private var loaded: Boolean = false;
private var directApiAccess: Boolean = false;
private var apiCallId: Number = 0;
private var apiCalls: Object = new Object();
private var dp: DataProvider;
public function APIConnection(...params) {
var connectionName: String;
if (typeof(params[0]) == 'string') {
connectionName = params[0];
} else {
connectionName = params[0].lc_name;
var api_url: String = 'http://api.vkontakte.ru/api.php';
if (params[0].api_url) api_url = params[0].api_url;
dp = new DataProvider(api_url, params[0].api_id, params[0].sid, params[0].secret, params[0].viewer_id);
}
if (!connectionName) return;
pendingRequests = new Array();
this.connectionName = connectionName;
sendingLC = new LocalConnection();
sendingLC.allowDomain('*');
receivingLC = new LocalConnection();
receivingLC.allowDomain('*');
receivingLC.client = {
initConnection: initConnection,
onBalanceChanged: onBalanceChanged,
onSettingsChanged: onSettingsChanged,
onLocationChanged: onLocationChanged,
onWindowResized: onWindowResized,
onApplicationAdded: onApplicationAdded,
onWindowBlur: onWindowBlur,
onWindowFocus: onWindowFocus,
onWallPostSave: onWallPostSave,
onWallPostCancel: onWallPostCancel,
onProfilePhotoSave: onProfilePhotoSave,
onProfilePhotoCancel: onProfilePhotoCancel,
onMerchantPaymentSuccess: onMerchantPaymentSuccess,
onMerchantPaymentCancel: onMerchantPaymentCancel,
onMerchantPaymentFail: onMerchantPaymentFail,
apiCallback: apiCallback,
customEvent: customEvent
};
try {
receivingLC.connect("_out_" + connectionName);
} catch (error:ArgumentError) {
debug("Cant connect from App. The connection name is already being used by another SWF");
}
sendingLC.addEventListener(StatusEvent.STATUS, onInitStatus);
sendingLC.send("_in_" + connectionName, "initConnection");
}
/*
* Public methods
*/
public function callMethod(...params):void {
var paramsArr: Array = params as Array;
paramsArr.unshift("callMethod");
sendData.apply(this, paramsArr);
}
public function debug(msg: *): void {
if (!msg || !msg.toString) {
return;
}
sendData("debug", msg.toString());
}
// direct access to api (wall.post would not work)
public function forceDirectApiAccess(enable: Boolean = true):void {
directApiAccess = enable;
}
public function api(method: String, params: Object, onComplete:Function = null, onError:Function = null):void {
if (!sendingLC || directApiAccess) {
var options: Object = new Object();
options['params'] = params;
options['onComplete'] = onComplete;
options['onError'] = onError;
dp.request(method, options);
} else {
var callId: Number = apiCallId++;
apiCalls[callId] = function(data: Object):void {
if (data.error) {
onError(data.error);
} else {
onComplete(data.response);
}
}
sendData("api", callId, method, params);
}
}
public function navigateToURL(url: String, window: String = "_self"): void {
this.callMethod("navigateToURL", url, window);
}
/*
* Callbacks
*/
private function initConnection(): void {
if (loaded) return;
loaded = true;
debug("Connection initialized.");
dispatchEvent(new CustomEvent(CustomEvent.CONN_INIT));
sendPendingRequests();
}
public function customEvent(...params): void {
var paramsArr: Array = params as Array;
var eventName: String = paramsArr.shift();
debug(eventName);
var e:CustomEvent = new CustomEvent(eventName);
e.params = paramsArr;
dispatchEvent(e);
}
/*
* Obsolete callbacks
*/
private function onBalanceChanged(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onBalanceChanged')
customEvent.apply(this, paramsArr);
}
private function onSettingsChanged(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onSettingsChanged')
customEvent.apply(this, paramsArr);
}
private function onLocationChanged(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onLocationChanged')
customEvent.apply(this, paramsArr);
}
private function onWindowResized(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onWindowResized')
customEvent.apply(this, paramsArr);
}
private function onApplicationAdded(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onApplicationAdded')
customEvent.apply(this, paramsArr);
}
private function onWindowBlur(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onWindowBlur')
customEvent.apply(this, paramsArr);
}
private function onWindowFocus(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onWindowFocus')
customEvent.apply(this, paramsArr);
}
private function onWallPostSave(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onWallPostSave')
customEvent.apply(this, paramsArr);
}
private function onWallPostCancel(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onWallPostCancel')
customEvent.apply(this, paramsArr);
}
private function onProfilePhotoSave(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onProfilePhotoSave')
customEvent.apply(this, paramsArr);
}
private function onProfilePhotoCancel(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onProfilePhotoCancel')
customEvent.apply(this, paramsArr);
}
private function onMerchantPaymentSuccess(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onMerchantPaymentSuccess')
customEvent.apply(this, paramsArr);
}
private function onMerchantPaymentCancel(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onMerchantPaymentCancel')
customEvent.apply(this, paramsArr);
}
private function onMerchantPaymentFail(...params): void {
var paramsArr: Array = params as Array;
paramsArr.unshift('onMerchantPaymentFail')
customEvent.apply(this, paramsArr);
}
private function apiCallback(callId:Number, data:Object): void {
apiCalls[callId](data);
delete apiCalls[callId];
}
/*
* Private methods
*/
private function sendPendingRequests(): void {
while (pendingRequests.length) {
sendData.apply(this, pendingRequests.shift());
}
}
private function sendData(...params):void {
var paramsArr: Array = params as Array;
if (loaded) {
paramsArr.unshift("_in_" + connectionName);
sendingLC.send.apply(null, paramsArr);
} else {
pendingRequests.push(paramsArr);
}
}
private function onInitStatus(e:StatusEvent):void {
debug("StatusEvent: "+e.level);
e.target.removeEventListener(e.type, onInitStatus);
if (e.level == "status") {
receivingLC.client.initConnection();
}
}
}
}
1. Что делает метод debug(). В классе с уровнем доступа public.
2. Что делает метод apiCallback, и зачем он находится в списке обратных вызовов receivingLC.client.
3. customEvent добавляет событие в поток событий, тут вроде как бы все понятно, но не понятно зачем метод находится в списке обратных вызовов receivingLC.client, ведь уже и так указаны все возможные обратные методы всех событий, и добавления события в поток идет через них, зачем он нужен пока мне не понятно.
Надеюсь, что топик не останется без внимания.
27.02.2011, 01:32
Flash Proxy in Vkontakte
Линейный вид
