source: trip-planner-front/node_modules/@angular/platform-browser/esm2015/src/dom/events/event_manager.js@ 6a3a178

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { ɵgetDOM as getDOM } from '@angular/common';
import { Inject, Injectable, InjectionToken, NgZone } from '@angular/core';
/**
 * The injection token for the event-manager plug-in service.
 *
 * @publicApi
 */
export const EVENT_MANAGER_PLUGINS = new InjectionToken('EventManagerPlugins');
/**
 * An injectable service that provides event management for Angular
 * through a browser plug-in.
 *
 * @publicApi
 */
export class EventManager {
    /**
     * Initializes an instance of the event-manager service.
     */
    constructor(plugins, _zone) {
        this._zone = _zone;
        this._eventNameToPlugin = new Map();
        plugins.forEach(p => p.manager = this);
        this._plugins = plugins.slice().reverse();
    }
    /**
     * Registers a handler for a specific element and event.
     *
     * @param element The HTML element to receive event notifications.
     * @param eventName The name of the event to listen for.
     * @param handler A function to call when the notification occurs. Receives the
     * event object as an argument.
     * @returns  A callback function that can be used to remove the handler.
     */
    addEventListener(element, eventName, handler) {
        const plugin = this._findPluginFor(eventName);
        return plugin.addEventListener(element, eventName, handler);
    }
    /**
     * Registers a global handler for an event in a target view.
     *
     * @param target A target for global event notifications. One of "window", "document", or "body".
     * @param eventName The name of the event to listen for.
     * @param handler A function to call when the notification occurs. Receives the
     * event object as an argument.
     * @returns A callback function that can be used to remove the handler.
     * @deprecated No longer being used in Ivy code. To be removed in version 14.
     */
    addGlobalEventListener(target, eventName, handler) {
        const plugin = this._findPluginFor(eventName);
        return plugin.addGlobalEventListener(target, eventName, handler);
    }
    /**
     * Retrieves the compilation zone in which event listeners are registered.
     */
    getZone() {
        return this._zone;
    }
    /** @internal */
    _findPluginFor(eventName) {
        const plugin = this._eventNameToPlugin.get(eventName);
        if (plugin) {
            return plugin;
        }
        const plugins = this._plugins;
        for (let i = 0; i < plugins.length; i++) {
            const plugin = plugins[i];
            if (plugin.supports(eventName)) {
                this._eventNameToPlugin.set(eventName, plugin);
                return plugin;
            }
        }
        throw new Error(`No event manager plugin found for event ${eventName}`);
    }
}
EventManager.decorators = [
    { type: Injectable }
];
EventManager.ctorParameters = () => [
    { type: Array, decorators: [{ type: Inject, args: [EVENT_MANAGER_PLUGINS,] }] },
    { type: NgZone }
];
export class EventManagerPlugin {
    constructor(_doc) {
        this._doc = _doc;
    }
    addGlobalEventListener(element, eventName, handler) {
        const target = getDOM().getGlobalEventTarget(this._doc, element);
        if (!target) {
            throw new Error(`Unsupported event target ${target} for event ${eventName}`);
        }
        return this.addEventListener(target, eventName, handler);
    }
}
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