aboutsummaryrefslogtreecommitdiff
path: root/test/data/html/js/html-test-utilities.js
blob: c6011e6d0a88816a7357c1718bc7adceb2141155 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
/*
 * Copyright (C) 2023-2024  Yomitan Authors
 * Copyright (C) 2021-2022  Yomichan Authors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

/**
 * This is a static class because this file is not imported as a module.
 */
// eslint-disable-next-line unicorn/no-static-only-class
class HtmlTestUtilities {
    /**
     * @param {Element} element
     */
    static requestFullscreen(element) {
        if (element.requestFullscreen) {
            void element.requestFullscreen();
            // @ts-expect-error - Browser compatibility
        } else if (element.mozRequestFullScreen) {
            // @ts-expect-error - Browser compatibility
            void element.mozRequestFullScreen();
            // @ts-expect-error - Browser compatibility
        } else if (element.webkitRequestFullscreen) {
            // @ts-expect-error - Browser compatibility
            void element.webkitRequestFullscreen();
            // @ts-expect-error - Browser compatibility
        } else if (element.msRequestFullscreen) {
            // @ts-expect-error - Browser compatibility
            void element.msRequestFullscreen();
        }
    }

    /** */
    static exitFullscreen() {
        if (document.exitFullscreen) {
            void document.exitFullscreen();
            // @ts-expect-error - Browser compatibility
        } else if (document.mozCancelFullScreen) {
            // @ts-expect-error - Browser compatibility
            void document.mozCancelFullScreen();
            // @ts-expect-error - Browser compatibility
        } else if (document.webkitExitFullscreen) {
            // @ts-expect-error - Browser compatibility
            void document.webkitExitFullscreen();
            // @ts-expect-error - Browser compatibility
        } else if (document.msExitFullscreen) {
            // @ts-expect-error - Browser compatibility
            void document.msExitFullscreen();
        }
    }

    /**
     * @returns {?Element}
     */
    static getFullscreenElement() {
        return (
            document.fullscreenElement ||
            // @ts-expect-error - Browser compatibility
            document.msFullscreenElement ||
            // @ts-expect-error - Browser compatibility
            document.mozFullScreenElement ||
            // @ts-expect-error - Browser compatibility
            document.webkitFullscreenElement ||
            null
        );
    }

    /**
     * @param {Element} element
     */
    static toggleFullscreen(element) {
        if (this.getFullscreenElement()) {
            this.exitFullscreen();
        } else {
            this.requestFullscreen(element);
        }
    }

    /**
     * @param {string} string
     * @returns {Uint8Array}
     */
    static stringToTypedArray(string) {
        const array = new Uint8Array(string.length);
        for (let i = 0; i < string.length; ++i) {
            array[i] = string.charCodeAt(i);
        }
        return array;
    }

    /**
     * @param {string} dataUrl
     * @returns {{content: string, type: string}}
     * @throws {Error}
     */
    static dataUrlToContent(dataUrl) {
        const match = /^data:([^;]*);(base64,)?([\w\W]*)$/.exec(dataUrl);
        if (match === null) { throw new Error('Invalid input'); }
        const [, type, isBase64, data] = match;
        const content = (
            isBase64 ?
                new TextDecoder().decode(this.stringToTypedArray(atob(data))) :
                data
        );
        return {content, type};
    }

    /**
     * @param {string} dataUrl
     * @returns {Blob}
     */
    static dataUrlToBlob(dataUrl) {
        const {content, type} = this.dataUrlToContent(dataUrl);
        return new Blob([content], {type});
    }

    /**
     * @param {?Element} element
     * @returns {string}
     * @throws {Error}
     */
    static getIframeSrc(element) {
        if (!(element instanceof HTMLIFrameElement)) {
            throw new Error('Element is not an iframe');
        }
        return element.src;
    }

    /**
     * @param {Element|DocumentFragment} container
     * @param {?Element} [fullscreenElement]
     */
    static setupTest(container, fullscreenElement = null) {
        const fullscreenLink = container.querySelector('.fullscreen-link');
        if (fullscreenLink !== null) {
            if (fullscreenElement === null) {
                fullscreenElement = container.querySelector('.fullscreen-element');
            }
            fullscreenLink.addEventListener('click', (e) => {
                if (fullscreenElement === null) { return; }
                this.toggleFullscreen(fullscreenElement);
                e.preventDefault();
                return false;
            }, false);
        }

        const template = container.querySelector('template');
        const templateContentContainer = container.querySelector('.template-content-container');
        if (template !== null && templateContentContainer !== null) {
            const mode = (container instanceof HTMLElement ? container.dataset.shadowMode : void 0);
            const shadow = templateContentContainer.attachShadow({
                mode: (mode === 'open' || mode === 'closed' ? mode : 'open'),
            });

            const containerStyles = document.querySelector('#container-styles');
            if (containerStyles !== null) {
                shadow.appendChild(containerStyles.cloneNode(true));
            }

            const content = document.importNode(template.content, true);
            this.setupTest(content);
            shadow.appendChild(content);
        }
    }

    /**
     * @param {() => void} main
     */
    static runMain(main) {
        if (document.readyState === 'loading') {
            document.addEventListener('DOMContentLoaded', () => { main(); });
        } else {
            main();
        }
    }
}