aboutsummaryrefslogtreecommitdiff
path: root/ext/mixed/js/util.js
blob: 628386748cc7c5f57d29076b155345c2d9412de1 (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
/*
 * Copyright (C) 2017  Alex Yatskov <alex@foosoft.net>
 * Author: Alex Yatskov <alex@foosoft.net>
 *
 * 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 <http://www.gnu.org/licenses/>.
 */


/*
 * Cloze
 */

function clozeBuild(sentence, source) {
    const result = {
        sentence: sentence.text.trim()
    };

    if (source) {
        result.prefix = sentence.text.substring(0, sentence.offset).trim();
        result.body = source.trim();
        result.suffix = sentence.text.substring(sentence.offset + source.length).trim();
    }

    return result;
}


/*
 * Audio
 */

function audioBuildUrl(definition, mode, cache={}) {
    if (mode === 'jpod101') {
        let kana = definition.reading;
        let kanji = definition.expression;

        if (!kana && wanakana.isHiragana(kanji)) {
            kana = kanji;
            kanji = null;
        }

        const params = [];
        if (kanji) {
            params.push(`kanji=${encodeURIComponent(kanji)}`);
        }
        if (kana) {
            params.push(`kana=${encodeURIComponent(kana)}`);
        }

        const url = `https://assets.languagepod101.com/dictionary/japanese/audiomp3.php?${params.join('&')}`;
        return Promise.resolve(url);
    } else if (mode === 'jpod101-alternate') {
        return new Promise((resolve, reject) => {
            const response = cache[definition.expression];
            if (response) {
                resolve(response);
            } else {
                const data = {
                    post: 'dictionary_reference',
                    match_type: 'exact',
                    search_query: definition.expression
                };

                const params = [];
                for (const key in data) {
                    params.push(`${encodeURIComponent(key)}=${encodeURIComponent(data[key])}`);
                }

                const xhr = new XMLHttpRequest();
                xhr.open('POST', 'https://www.japanesepod101.com/learningcenter/reference/dictionary_post');
                xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
                xhr.addEventListener('error', () => reject('failed to scrape audio data'));
                xhr.addEventListener('load', () => {
                    cache[definition.expression] = xhr.responseText;
                    resolve(xhr.responseText);
                });

                xhr.send(params.join('&'));
            }
        }).then(response => {
            const dom = new DOMParser().parseFromString(response, 'text/html');
            for (const row of dom.getElementsByClassName('dc-result-row')) {
                try {
                    const url = row.getElementsByClassName('ill-onebuttonplayer').item(0).getAttribute('data-url');
                    const reading = row.getElementsByClassName('dc-vocab_kana').item(0).innerText;
                    if (url && reading && (!definition.reading || definition.reading === reading)) {
                        return url;
                    }
                } catch (e) {
                    // NOP
                }
            }
        });
    } else {
        return Promise.reject('unsupported audio source');
    }
}

function audioBuildFilename(definition) {
    if (definition.reading && definition.expression) {
        let filename = 'yomichan';
        if (definition.reading) {
            filename += `_${definition.reading}`;
        }
        if (definition.expression) {
            filename += `_${definition.expression}`;
        }

        return filename += '.mp3';
    }
}

function audioInject(definition, fields, mode) {
    if (mode === 'disabled') {
        return Promise.resolve(true);
    }

    const filename = audioBuildFilename(definition);
    if (!filename) {
        return Promise.resolve(true);
    }

    let usesAudio = false;
    for (const name in fields) {
        if (fields[name].includes('{audio}')) {
            usesAudio = true;
            break;
        }
    }

    if (!usesAudio) {
        return Promise.resolve(true);
    }

    return audioBuildUrl(definition, mode).then(url => {
        definition.audio = {url, filename};
        return true;
    }).catch(() => false);
}