var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
    return function (target, key) { decorator(target, key, paramIndex); }
};
import { CONST_EXPR } from 'angular2/src/facade/lang';
import { BaseException } from 'angular2/src/facade/exceptions';
import { Injectable, Inject, OpaqueToken } from 'angular2/src/core/di';
import { NgZone } from 'angular2/src/core/zone/ng_zone';
import { ListWrapper } from 'angular2/src/facade/collection';
export const EVENT_MANAGER_PLUGINS = CONST_EXPR(new OpaqueToken("EventManagerPlugins"));
export let EventManager = class {
    constructor(plugins, _zone) {
        this._zone = _zone;
        plugins.forEach(p => p.manager = this);
        this._plugins = ListWrapper.reversed(plugins);
    }
    addEventListener(element, eventName, handler) {
        var plugin = this._findPluginFor(eventName);
        return plugin.addEventListener(element, eventName, handler);
    }
    addGlobalEventListener(target, eventName, handler) {
        var plugin = this._findPluginFor(eventName);
        return plugin.addGlobalEventListener(target, eventName, handler);
    }
    getZone() { return this._zone; }
    /** @internal */
    _findPluginFor(eventName) {
        var plugins = this._plugins;
        for (var i = 0; i < plugins.length; i++) {
            var plugin = plugins[i];
            if (plugin.supports(eventName)) {
                return plugin;
            }
        }
        throw new BaseException(`No event manager plugin found for event ${eventName}`);
    }
};
EventManager = __decorate([
    Injectable(),
    __param(0, Inject(EVENT_MANAGER_PLUGINS)), 
    __metadata('design:paramtypes', [Array, NgZone])
], EventManager);
export class EventManagerPlugin {
    // That is equivalent to having supporting $event.target
    supports(eventName) { return false; }
    addEventListener(element, eventName, handler) {
        throw "not implemented";
    }
    addGlobalEventListener(element, eventName, handler) {
        throw "not implemented";
    }
}
