1 /*
2 * Copyright (c) 2002-2026 Gargoyle Software Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 * https://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15 package org.htmlunit.javascript.host;
16
17 import org.htmlunit.corejs.javascript.NativePromise;
18 import org.htmlunit.javascript.configuration.JsxClass;
19 import org.htmlunit.javascript.configuration.JsxConstructor;
20 import org.htmlunit.javascript.configuration.JsxFunction;
21 import org.htmlunit.javascript.host.event.EventTarget;
22
23 /**
24 * JavaScript host object for {@code FontFaceSet}.
25 *
26 * @author Ahmed Ashour
27 * @author Ronald Brill
28 *
29 * @see <a href="https://developer.mozilla.org/en-US/docs/Web/API/FontFaceSet">MDN Documentation</a>
30 */
31 @JsxClass
32 public class FontFaceSet extends EventTarget {
33
34 /**
35 * Creates an instance of this object.
36 */
37 @Override
38 @JsxConstructor
39 public void jsConstructor() {
40 super.jsConstructor();
41 }
42
43 /**
44 * Initiates loading of all fonts in the given list and returns a {@code Promise} that resolves
45 * when all fonts are loaded, or rejects if any font fails to load.
46 *
47 * @param font a font specification using CSS value syntax, e.g. {@code "italic bold 16px Roboto"}
48 * @param text limits the font faces to those whose Unicode range contains at least one
49 * of the characters in this text
50 * @return a {@code Promise} of an array of loaded {@code FontFace} objects
51 */
52 @JsxFunction
53 public NativePromise load(final String font, final String text) {
54 return setupPromise(() -> "");
55 }
56 }