572 lines
17 KiB
JavaScript
572 lines
17 KiB
JavaScript
/*
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* Copyright (C) 2017 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 Display {
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constructor(spinner, container) {
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this.spinner = spinner;
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this.container = container;
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this.definitions = [];
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this.options = null;
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this.context = null;
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this.sequence = 0;
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this.index = 0;
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this.audioCache = {};
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this.dependencies = {};
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$(document).keydown(this.onKeyDown.bind(this));
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$(document).on('wheel', this.onWheel.bind(this));
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}
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onError(error) {
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throw 'Override me';
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}
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onSearchClear() {
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throw 'Override me';
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}
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onSourceTermView(e) {
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e.preventDefault();
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this.sourceTermView();
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}
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async onKanjiLookup(e) {
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try {
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e.preventDefault();
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const link = $(e.target);
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const context = {
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source: {
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definitions: this.definitions,
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index: Display.entryIndexFind(link),
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scroll: $('html,body').scrollTop()
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}
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};
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if (this.context) {
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context.sentence = this.context.sentence;
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context.url = this.context.url;
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context.source.source = this.context.source;
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}
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const kanjiDefs = await apiKanjiFind(link.text());
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this.kanjiShow(kanjiDefs, this.options, context);
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} catch (e) {
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this.onError(e);
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}
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}
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async onTermLookup(e) {
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try {
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e.preventDefault();
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const {docRangeFromPoint, docSentenceExtract} = this.dependencies;
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const clickedElement = $(e.target);
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const textSource = docRangeFromPoint({x: e.clientX, y: e.clientY});
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if (textSource === null) {
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return false;
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}
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let definitions, length, sentence;
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try {
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textSource.setEndOffset(this.options.scanning.length);
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({definitions, length} = await apiTermsFind(textSource.text()));
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if (definitions.length === 0) {
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return false;
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}
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textSource.setEndOffset(length);
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sentence = docSentenceExtract(textSource, this.options.anki.sentenceExt);
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} finally {
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textSource.cleanup();
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}
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const context = {
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source: {
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definitions: this.definitions,
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index: Display.entryIndexFind(clickedElement),
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scroll: $('html,body').scrollTop()
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}
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};
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if (this.context) {
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context.sentence = sentence;
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context.url = this.context.url;
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context.source.source = this.context.source;
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}
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this.termsShow(definitions, this.options, context);
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} catch (e) {
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this.onError(e);
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}
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}
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onAudioPlay(e) {
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e.preventDefault();
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const link = $(e.currentTarget);
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const definitionIndex = Display.entryIndexFind(link);
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const expressionIndex = link.closest('.entry').find('.expression .action-play-audio').index(link);
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this.audioPlay(this.definitions[definitionIndex], expressionIndex);
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}
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onNoteAdd(e) {
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e.preventDefault();
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const link = $(e.currentTarget);
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const index = Display.entryIndexFind(link);
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this.noteAdd(this.definitions[index], link.data('mode'));
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}
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onNoteView(e) {
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e.preventDefault();
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const link = $(e.currentTarget);
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const index = Display.entryIndexFind(link);
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apiNoteView(link.data('noteId'));
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}
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onKeyDown(e) {
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const noteTryAdd = mode => {
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const button = Display.adderButtonFind(this.index, mode);
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if (button.length !== 0 && !button.hasClass('disabled')) {
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this.noteAdd(this.definitions[this.index], mode);
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}
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};
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const noteTryView = mode => {
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const button = Display.viewerButtonFind(this.index);
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if (button.length !== 0 && !button.hasClass('disabled')) {
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apiNoteView(button.data('noteId'));
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}
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};
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const handlers = {
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27: /* escape */ () => {
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this.onSearchClear();
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return true;
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},
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33: /* page up */ () => {
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if (e.altKey) {
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this.entryScrollIntoView(this.index - 3, null, true);
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return true;
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}
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},
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34: /* page down */ () => {
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if (e.altKey) {
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this.entryScrollIntoView(this.index + 3, null, true);
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return true;
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}
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},
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35: /* end */ () => {
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if (e.altKey) {
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this.entryScrollIntoView(this.definitions.length - 1, null, true);
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return true;
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}
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},
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36: /* home */ () => {
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if (e.altKey) {
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this.entryScrollIntoView(0, null, true);
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return true;
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}
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},
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38: /* up */ () => {
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if (e.altKey) {
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this.entryScrollIntoView(this.index - 1, null, true);
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return true;
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}
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},
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40: /* down */ () => {
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if (e.altKey) {
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this.entryScrollIntoView(this.index + 1, null, true);
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return true;
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}
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},
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66: /* b */ () => {
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if (e.altKey) {
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this.sourceTermView();
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return true;
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}
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},
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69: /* e */ () => {
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if (e.altKey) {
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noteTryAdd('term-kanji');
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return true;
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}
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},
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75: /* k */ () => {
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if (e.altKey) {
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noteTryAdd('kanji');
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return true;
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}
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},
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82: /* r */ () => {
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if (e.altKey) {
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noteTryAdd('term-kana');
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return true;
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}
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},
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80: /* p */ () => {
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if (e.altKey) {
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if ($('.entry').eq(this.index).data('type') === 'term') {
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this.audioPlay(this.definitions[this.index], this.firstExpressionIndex);
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}
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return true;
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}
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},
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86: /* v */ () => {
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if (e.altKey) {
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noteTryView();
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}
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}
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};
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const handler = handlers[e.keyCode];
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if (handler && handler()) {
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e.preventDefault();
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}
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}
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onWheel(e) {
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const event = e.originalEvent;
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const handler = () => {
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if (event.altKey) {
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if (event.deltaY < 0) { // scroll up
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this.entryScrollIntoView(this.index - 1, null, true);
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return true;
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} else if (event.deltaY > 0) { // scroll down
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this.entryScrollIntoView(this.index + 1, null, true);
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return true;
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}
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}
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};
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if (handler()) {
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event.preventDefault();
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}
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}
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async termsShow(definitions, options, context) {
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try {
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if (!context || context.focus !== false) {
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window.focus();
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}
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this.definitions = definitions;
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this.options = options;
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this.context = context;
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const sequence = ++this.sequence;
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const params = {
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definitions,
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source: context && context.source,
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addable: options.anki.enable,
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grouped: options.general.resultOutputMode === 'group',
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merged: options.general.resultOutputMode === 'merge',
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playback: options.general.audioSource !== 'disabled',
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compactGlossaries: options.general.compactGlossaries,
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debug: options.general.debugInfo
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};
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if (context) {
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for (const definition of definitions) {
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if (context.sentence) {
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definition.cloze = Display.clozeBuild(context.sentence, definition.source);
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}
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definition.url = context.url;
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}
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}
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const content = await apiTemplateRender('terms.html', params);
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this.container.html(content);
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const {index, scroll} = context || {};
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this.entryScrollIntoView(index || 0, scroll);
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if (this.options.general.autoPlayAudio && this.options.general.audioSource !== 'disabled') {
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this.autoPlayAudio();
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}
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$('.action-add-note').click(this.onNoteAdd.bind(this));
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$('.action-view-note').click(this.onNoteView.bind(this));
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$('.action-play-audio').click(this.onAudioPlay.bind(this));
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$('.kanji-link').click(this.onKanjiLookup.bind(this));
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$('.source-term').click(this.onSourceTermView.bind(this));
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$('.glossary-item').click(this.onTermLookup.bind(this));
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await this.adderButtonUpdate(['term-kanji', 'term-kana'], sequence);
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} catch (e) {
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this.onError(e);
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}
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}
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async kanjiShow(definitions, options, context) {
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try {
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if (!context || context.focus !== false) {
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window.focus();
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}
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this.definitions = definitions;
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this.options = options;
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this.context = context;
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const sequence = ++this.sequence;
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const params = {
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definitions,
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source: context && context.source,
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addable: options.anki.enable,
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debug: options.general.debugInfo
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};
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if (context) {
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for (const definition of definitions) {
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if (context.sentence) {
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definition.cloze = Display.clozeBuild(context.sentence);
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}
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definition.url = context.url;
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}
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}
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const content = await apiTemplateRender('kanji.html', params);
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this.container.html(content);
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const {index, scroll} = context || {};
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this.entryScrollIntoView(index || 0, scroll);
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$('.action-add-note').click(this.onNoteAdd.bind(this));
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$('.action-view-note').click(this.onNoteView.bind(this));
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$('.source-term').click(this.onSourceTermView.bind(this));
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await this.adderButtonUpdate(['kanji'], sequence);
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} catch (e) {
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this.onError(e);
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}
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}
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autoPlayAudio() {
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this.audioPlay(this.definitions[0], this.firstExpressionIndex);
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}
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async adderButtonUpdate(modes, sequence) {
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try {
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const states = await apiDefinitionsAddable(this.definitions, modes);
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if (!states || sequence !== this.sequence) {
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return;
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}
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for (let i = 0; i < states.length; ++i) {
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const state = states[i];
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for (const mode in state) {
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const button = Display.adderButtonFind(i, mode);
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if (state[mode]) {
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button.removeClass('disabled');
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} else {
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button.addClass('disabled');
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}
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button.removeClass('pending');
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}
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}
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} catch (e) {
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this.onError(e);
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}
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}
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entryScrollIntoView(index, scroll, smooth) {
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index = Math.min(index, this.definitions.length - 1);
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index = Math.max(index, 0);
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$('.current').hide().eq(index).show();
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const container = $('html,body').stop();
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const entry = $('.entry').eq(index);
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let target;
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if (scroll) {
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target = scroll;
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} else {
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target = index === 0 ? 0 : entry.offset().top;
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}
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if (smooth) {
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container.animate({scrollTop: target}, 200);
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} else {
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container.scrollTop(target);
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}
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this.index = index;
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}
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sourceTermView() {
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if (this.context && this.context.source) {
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const context = {
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url: this.context.source.url,
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sentence: this.context.source.sentence,
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index: this.context.source.index,
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scroll: this.context.source.scroll,
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source: this.context.source.source
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};
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this.termsShow(this.context.source.definitions, this.options, context);
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}
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}
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async noteAdd(definition, mode) {
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try {
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this.spinner.show();
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const context = {};
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if (this.noteUsesScreenshot()) {
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const screenshot = await this.getScreenshot();
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if (screenshot) {
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context.screenshot = screenshot;
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}
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}
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const noteId = await apiDefinitionAdd(definition, mode, context);
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if (noteId) {
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const index = this.definitions.indexOf(definition);
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Display.adderButtonFind(index, mode).addClass('disabled');
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Display.viewerButtonFind(index).removeClass('pending disabled').data('noteId', noteId);
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} else {
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throw 'Note could note be added';
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}
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} catch (e) {
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this.onError(e);
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} finally {
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this.spinner.hide();
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}
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}
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async audioPlay(definition, expressionIndex) {
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try {
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this.spinner.show();
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const expression = expressionIndex === -1 ? definition : definition.expressions[expressionIndex];
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let url = await apiAudioGetUrl(expression, this.options.general.audioSource);
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if (!url) {
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url = '/mixed/mp3/button.mp3';
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}
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for (const key in this.audioCache) {
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this.audioCache[key].pause();
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}
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let audio = this.audioCache[url];
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if (audio) {
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audio.currentTime = 0;
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audio.volume = this.options.general.audioVolume / 100.0;
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audio.play();
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} else {
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audio = new Audio(url);
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audio.onloadeddata = () => {
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if (audio.duration === 5.694694 || audio.duration === 5.720718) {
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audio = new Audio('/mixed/mp3/button.mp3');
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}
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this.audioCache[url] = audio;
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audio.volume = this.options.general.audioVolume / 100.0;
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audio.play();
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};
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}
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} catch (e) {
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this.onError(e);
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} finally {
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this.spinner.hide();
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}
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}
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noteUsesScreenshot() {
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const fields = this.options.anki.terms.fields;
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for (const name in fields) {
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if (fields[name].includes('{screenshot}')) {
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return true;
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}
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}
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return false;
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}
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async getScreenshot() {
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try {
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await this.setPopupVisible(false);
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await Display.delay(1); // Wait for popup to be hidden.
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const {format, quality} = this.options.anki.screenshot;
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const dataUrl = await apiScreenshotGet({format, quality});
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if (!dataUrl || dataUrl.error) { return; }
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return {dataUrl, format};
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} finally {
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await this.setPopupVisible(true);
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}
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}
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get firstExpressionIndex() {
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return this.options.general.resultOutputMode === 'merge' ? 0 : -1;
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}
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setPopupVisible(visible) {
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return apiForward('popupSetVisible', {visible});
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}
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static clozeBuild(sentence, source) {
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const result = {
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sentence: sentence.text.trim()
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};
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if (source) {
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result.prefix = sentence.text.substring(0, sentence.offset).trim();
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result.body = source.trim();
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result.suffix = sentence.text.substring(sentence.offset + source.length).trim();
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}
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return result;
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}
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static entryIndexFind(element) {
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return $('.entry').index(element.closest('.entry'));
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}
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static adderButtonFind(index, mode) {
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return $('.entry').eq(index).find(`.action-add-note[data-mode="${mode}"]`);
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}
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static viewerButtonFind(index) {
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return $('.entry').eq(index).find('.action-view-note');
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}
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static delay(time) {
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return new Promise((resolve) => setTimeout(resolve, time));
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}
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}
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