com.badlogic.gdx.backends.gwt.GwtPermissions Maven / Gradle / Ivy

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/*******************************************************************************
 * Copyright 2011 See AUTHORS file.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

package com.badlogic.gdx.backends.gwt;

public class GwtPermissions {
	/** Returns the user permission status for a given API via the Permissions API
	 * @param permission the permission, see w3c for all
	 *           permissions
	 * @param result handler of permission result */
	native static public void queryPermission (String permission, GwtPermissionResult result) /*-{
		if ("permissions" in $wnd.navigator) {
			$wnd.navigator.permissions.query({
				name: permission
			}).then(function (permissionStatus) {
				if (permissionStatus.state === 'granted') {
					result.@com.badlogic.gdx.backends.gwt.GwtPermissions.GwtPermissionResult::granted()();
				} else if (permissionStatus.state === 'denied') {
					result.@com.badlogic.gdx.backends.gwt.GwtPermissions.GwtPermissionResult::denied()();
				} else if (permissionStatus.state === 'prompt') {
					result.@com.badlogic.gdx.backends.gwt.GwtPermissions.GwtPermissionResult::prompt()();
				}
				permissionStatus.onchange = function() {
					if (this.state === 'granted') {
						result.@com.badlogic.gdx.backends.gwt.GwtPermissions.GwtPermissionResult::granted()();
					} else if (this.state === 'denied') {
						result.@com.badlogic.gdx.backends.gwt.GwtPermissions.GwtPermissionResult::denied()();
					} else if (this.state === 'prompt') {
						result.@com.badlogic.gdx.backends.gwt.GwtPermissions.GwtPermissionResult::prompt()();
					}
				};
			});
		} else {
			result.@com.badlogic.gdx.backends.gwt.GwtPermissions.GwtPermissionResult::granted()();
		}
	}-*/;

	/** See status-of-a-permission for more information */
	public interface GwtPermissionResult {
		/** the permission to access the feature is granted without asking the user */
		void granted ();

		/** accessing the feature is not allowed */
		void denied ();

		/** the user will be asked on permission if the feature is tried to access */
		void prompt ();
	}
}