/* * 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 invokeBgApi(action, params) { return new Promise((resolve, reject) => { chrome.runtime.sendMessage({action, params}, ({result, error}) => { if (error) { reject(error); } else { resolve(result); } }); }); } function isEnabled() { return invokeBgApi('getEnabled', {}); } function getOptions() { return invokeBgApi('getOptions', {}); } function findTerm(text) { return invokeBgApi('findTerm', {text}); } function findKanji(text) { return invokeBgApi('findKanji', {text}); } function renderText(data, template) { return invokeBgApi('renderText', {data, template}); } function canAddDefinitions(definitions, modes) { return invokeBgApi('canAddDefinitions', {definitions, modes}).catch(() => null); } function addDefinition(definition, mode) { return invokeBgApi('addDefinition', {definition, mode}); } function textSourceFromPoint(point) { const element = document.elementFromPoint(point.x, point.y); if (element !== null) { const names = ['IMG', 'INPUT', 'BUTTON', 'TEXTAREA']; if (names.includes(element.nodeName)) { return new TextSourceElement(element); } } const range = document.caretRangeFromPoint(point.x, point.y); if (range !== null) { return new TextSourceRange(range); } return null; } function extractSentence(source, extent) { const quotesFwd = {'「': '」', '『': '』', "'": "'", '"': '"'}; const quotesBwd = {'」': '「', '』': '『', "'": "'", '"': '"'}; const terminators = '…。..??!!'; const sourceLocal = source.clone(); const position = sourceLocal.setStartOffset(extent); sourceLocal.setEndOffset(position + extent); const content = sourceLocal.text(); let quoteStack = []; let startPos = 0; for (let i = position; i >= startPos; --i) { const c = content[i]; if (quoteStack.length === 0 && (terminators.includes(c) || c in quotesFwd)) { startPos = i + 1; break; } if (quoteStack.length > 0 && c === quoteStack[0]) { quoteStack.pop(); } else if (c in quotesBwd) { quoteStack = [quotesBwd[c]].concat(quoteStack); } } quoteStack = []; let endPos = content.length; for (let i = position; i < endPos; ++i) { const c = content[i]; if (quoteStack.length === 0) { if (terminators.includes(c)) { endPos = i + 1; break; } else if (c in quotesBwd) { endPos = i; break; } } if (quoteStack.length > 0 && c === quoteStack[0]) { quoteStack.pop(); } else if (c in quotesFwd) { quoteStack = [quotesFwd[c]].concat(quoteStack); } } return content.substring(startPos, endPos).trim(); }