201 lines
5.9 KiB
JavaScript
201 lines
5.9 KiB
JavaScript
/*
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* Copyright (C) 2016 Alex Yatskov <alex@foosoft.net>
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* Author: Alex Yatskov <alex@foosoft.net>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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class Client {
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constructor() {
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this.popup = new Popup();
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this.lastMousePos = null;
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this.lastRange = null;
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this.activateKey = 16;
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this.activateBtn = 2;
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this.enabled = false;
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this.options = {};
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this.results = null;
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this.xhr = null;
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this.fgRoot = chrome.extension.getURL('fg');
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chrome.runtime.onMessage.addListener(this.onBgMessage.bind(this));
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window.addEventListener('message', this.onFrameMessage.bind(this));
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window.addEventListener('mousedown', this.onMouseDown.bind(this));
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window.addEventListener('mousemove', this.onMouseMove.bind(this));
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window.addEventListener('keydown', this.onKeyDown.bind(this));
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window.addEventListener('scroll', (e) => this.hidePopup());
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window.addEventListener('resize', (e) => this.hidePopup());
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getOptions((opts) => {
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this.setOptions(opts);
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getState((state) => this.setEnabled(state === 'enabled'));
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});
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}
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onKeyDown(e) {
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if (this.enabled && this.lastMousePos !== null && (e.keyCode === this.activateKey || e.charCode === this.activateKey)) {
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this.searchAt(this.lastMousePos);
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}
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}
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onMouseMove(e) {
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this.lastMousePos = {x: e.clientX, y: e.clientY};
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if (this.enabled && (e.shiftKey || e.which === this.activateBtn)) {
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this.searchAt(this.lastMousePos);
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}
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}
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onMouseDown(e) {
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this.lastMousePos = {x: e.clientX, y: e.clientY};
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if (this.enabled && (e.shiftKey || e.which === this.activateBtn)) {
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this.searchAt(this.lastMousePos);
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} else {
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this.hidePopup();
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}
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}
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onBgMessage({name, value}, sender, callback) {
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switch (name) {
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case 'state':
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this.setEnabled(value === 'enabled');
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break;
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case 'options':
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this.setOptions(value);
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break;
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}
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callback();
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}
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onFrameMessage(e) {
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const {action, params} = e.data, handlers = {
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addNote: ({mode, index}) => this.actionAddNote(mode, index, (data) => e.source.postMessage(data, e.origin)),
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displayKanji: this.actionDisplayKanji
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};
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if (handlers.hasOwnProperty(action)) {
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handlers[action].call(this, params);
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}
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}
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searchAt(point) {
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const range = Range.fromPoint(point);
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if (range === null || !range.containsPoint(point)) {
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this.hidePopup();
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return;
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}
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if (this.lastRange !== null && this.lastRange.compareOrigin(range) === 0) {
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return;
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}
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range.setLength(this.options.scanLength);
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findTerm(range.text(), ({results, length}) => {
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if (length === 0) {
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this.hidePopup();
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} else {
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range.setLength(length);
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renderText(
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{defs: results, root: this.fgRoot, options: this.options},
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'term-list.html',
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(content) => {
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this.results = results;
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this.showPopup(range, content, results);
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}
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);
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}
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});
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}
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actionAddNote(mode, index, callback) {
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callback({
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action: 'disableAction',
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params: {
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mode: mode,
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index: index
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}
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});
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}
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actionDisplayKanji(kanji) {
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findKanji(kanji, (results) => {
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renderText(
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{defs: results, root: this.fgRoot, options: this.options},
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'kanji-list.html',
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(content) => {
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this.results = results;
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this.popup.setContent(content, results);
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}
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);
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});
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}
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showPopup(range, content) {
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this.popup.showNextTo(range.getRect(), content);
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if (this.options.selectMatchedText) {
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range.select();
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}
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this.lastRange = range;
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}
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hidePopup() {
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this.popup.hide();
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if (this.options.selectMatchedText && this.lastRange !== null) {
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this.lastRange.deselect();
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}
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this.lastRange = null;
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this.results = null;
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}
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setEnabled(enabled) {
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if (!(this.enabled = enabled)) {
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this.hidePopup();
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}
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}
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setOptions(opts) {
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this.options = opts;
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}
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callAnkiApi(action, params, callback) {
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if (!this.options.enableAnkiConnect) {
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callback(null);
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return;
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}
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if (this.xhr !== null) {
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this.xhr.abort();
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}
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this.xhr = new XMLHttpRequest();
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this.xhr.addEventListener('loadend', () => {
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const resp = this.xhr.responseText;
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callback(resp ? JSON.parse(resp) : null);
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this.xhr = null;
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});
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this.xhr.open('POST', 'http://127.0.0.1:8888');
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this.xhr.withCredentials = true;
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this.xhr.setRequestHeader('Content-Type', 'text/json');
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this.xhr.send(JSON.stringify({action: action, params: params}));
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}
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}
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window.yomiClient = new Client();
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