yomichan/ext/bg/js/util.js
2016-11-05 17:51:01 -07:00

143 lines
3.8 KiB
JavaScript

/*
* Copyright (C) 2016 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/>.
*/
function kanjiLinks(options) {
let result = '';
for (const c of options.fn(this)) {
if (isKanji(c)) {
result += Handlebars.templates['kanji-link.html']({kanji: c}).trim();
} else {
result += c;
}
}
return result;
}
function isKanji(c) {
const code = c.charCodeAt(0);
return code >= 0x4e00 && code < 0x9fb0 || code >= 0x3400 && code < 0x4dc0;
}
function promiseCallback(promise, callback) {
return promise.then(result => {
callback({result});
}).catch(error => {
callback({error});
});
}
function loadJson(url) {
return new Promise((resolve, reject) => {
const xhr = new XMLHttpRequest();
xhr.addEventListener('load', () => resolve(JSON.parse(xhr.responseText)));
xhr.open('GET', chrome.extension.getURL(url));
xhr.send();
});
}
function sortTags(tags) {
return tags.sort((v1, v2) => {
const order1 = v1.order;
const order2 = v2.order;
if (order1 < order2) {
return -1;
} else if (order1 > order2) {
return 1;
}
const name1 = v1.name;
const name2 = v2.name;
if (name1 < name2) {
return -1;
} else if (name1 > name2) {
return 1;
}
return 0;
});
}
function sortTermDefs(definitions) {
return definitions.sort((v1, v2) => {
const sl1 = v1.source.length;
const sl2 = v2.source.length;
if (sl1 > sl2) {
return -1;
} else if (sl1 < sl2) {
return 1;
}
const s1 = v1.score;
const s2 = v2.score;
if (s1 > s2) {
return -1;
} else if (s1 < s2) {
return 1;
}
const rl1 = v1.rules.length;
const rl2 = v2.rules.length;
if (rl1 < rl2) {
return -1;
} else if (rl1 > rl2) {
return 1;
}
return v2.expression.localeCompare(v1.expression);
});
}
function applyTagMeta(tag, meta) {
const symbol = tag.name.split(':')[0];
for (const prop in meta[symbol] || {}) {
tag[prop] = meta[symbol][prop];
}
return tag;
}
function splitField(field) {
return field.length === 0 ? [] : field.split(' ');
}
function importJsonDb(indexUrl, indexLoaded, entriesLoaded) {
const indexDir = indexUrl.slice(0, indexUrl.lastIndexOf('/'));
return loadJson(indexUrl).then(index => {
if (indexLoaded !== null) {
return indexLoaded(index.title, index.version, index.entities, index.banks).then(() => index);
}
return index;
}).then(index => {
const loaders = [];
for (let i = 1; i <= index.banks; ++i) {
const bankUrl = `${indexDir}/bank_${i}.json`;
loaders.push(() => loadJson(bankUrl).then(entries => entriesLoaded(index.title, index.version, entries, index.banks, i)));
}
let chain = Promise.resolve();
for (const loader of loaders) {
chain = chain.then(loader);
}
return chain;
});
}