angular2/src/platform/dom/events/event_manager.js

Angular 2 - a web framework for modern web apps

'use strict';var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") return Reflect.decorate(decorators, target, key, desc);
    switch (arguments.length) {
        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
    }
};
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); }
};
var lang_1 = require('angular2/src/facade/lang');
var exceptions_1 = require('angular2/src/facade/exceptions');
var di_1 = require('angular2/src/core/di');
var ng_zone_1 = require('angular2/src/core/zone/ng_zone');
var collection_1 = require('angular2/src/facade/collection');
exports.EVENT_MANAGER_PLUGINS = lang_1.CONST_EXPR(new di_1.OpaqueToken("EventManagerPlugins"));
var EventManager = (function () {
    function EventManager(plugins, _zone) {
        var _this = this;
        this._zone = _zone;
        plugins.forEach(function (p) { return p.manager = _this; });
        this._plugins = collection_1.ListWrapper.reversed(plugins);
    }
    EventManager.prototype.addEventListener = function (element, eventName, handler) {
        var plugin = this._findPluginFor(eventName);
        plugin.addEventListener(element, eventName, handler);
    };
    EventManager.prototype.addGlobalEventListener = function (target, eventName, handler) {
        var plugin = this._findPluginFor(eventName);
        return plugin.addGlobalEventListener(target, eventName, handler);
    };
    EventManager.prototype.getZone = function () { return this._zone; };
    /** @internal */
    EventManager.prototype._findPluginFor = function (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 exceptions_1.BaseException("No event manager plugin found for event " + eventName);
    };
    EventManager = __decorate([
        di_1.Injectable(),
        __param(0, di_1.Inject(exports.EVENT_MANAGER_PLUGINS)), 
        __metadata('design:paramtypes', [Array, ng_zone_1.NgZone])
    ], EventManager);
    return EventManager;
})();
exports.EventManager = EventManager;
var EventManagerPlugin = (function () {
    function EventManagerPlugin() {
    }
    // That is equivalent to having supporting $event.target
    EventManagerPlugin.prototype.supports = function (eventName) { return false; };
    EventManagerPlugin.prototype.addEventListener = function (element, eventName, handler) {
        throw "not implemented";
    };
    EventManagerPlugin.prototype.addGlobalEventListener = function (element, eventName, handler) {
        throw "not implemented";
    };
    return EventManagerPlugin;
})();
exports.EventManagerPlugin = EventManagerPlugin;
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