yomichan/ext/fg/js/driver.js

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/*
* 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/>.
*/
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class Driver {
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constructor() {
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this.popup = new Popup();
this.popupTimer = null;
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this.audio = {};
this.lastMousePos = null;
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this.lastTextSource = null;
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this.pendingLookup = false;
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this.enabled = false;
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this.options = null;
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this.definitions = null;
this.sequence = 0;
this.fgRoot = chrome.extension.getURL('fg');
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chrome.runtime.onMessage.addListener(this.onBgMessage.bind(this));
window.addEventListener('message', this.onFrameMessage.bind(this));
window.addEventListener('mouseover', this.onMouseOver.bind(this));
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window.addEventListener('mousedown', this.onMouseDown.bind(this));
window.addEventListener('mousemove', this.onMouseMove.bind(this));
window.addEventListener('keydown', this.onKeyDown.bind(this));
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window.addEventListener('resize', e => this.hidePopup());
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getOptions().then(opts => {
this.options = opts;
return getEnabled();
}).then(enabled => {
this.enabled = enabled;
});
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}
popupTimerSet(callback) {
this.popupTimerClear();
this.popupTimer = window.setTimeout(callback, this.options.scanDelay);
}
popupTimerClear() {
if (this.popupTimer !== null) {
window.clearTimeout(this.popupTimer);
this.popupTimer = null;
}
}
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onKeyDown(e) {
this.popupTimerClear();
if (this.enabled && this.lastMousePos !== null && e.keyCode === 16 /* shift */) {
this.searchAt(this.lastMousePos, true);
} else if (e.keyCode === 27 /* esc */) {
this.hidePopup();
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}
}
onMouseOver(e) {
if (e.target === this.popup.container && this.popuptimer !== null) {
this.popupTimerClear();
}
}
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onMouseMove(e) {
this.lastMousePos = {x: e.clientX, y: e.clientY};
this.popupTimerClear();
if (!this.enabled) {
return;
}
if (e.which === 1 /* lmb */) {
return;
}
if (this.options.holdShiftToScan && !e.shiftKey) {
return;
}
const searcher = () => this.searchAt(this.lastMousePos, false);
if (!this.popup.visible() || e.shiftKey || e.which === 2 /* mmb */) {
searcher();
} else {
this.popupTimerSet(searcher);
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}
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}
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onMouseDown(e) {
this.lastMousePos = {x: e.clientX, y: e.clientY};
this.popupTimerClear();
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this.hidePopup();
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}
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onBgMessage({action, params}, sender, callback) {
const method = this['api_' + action];
if (typeof(method) === 'function') {
method.call(this, params);
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}
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callback();
}
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onFrameMessage(e) {
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const {action, params} = e.data, method = this['api_' + action];
if (typeof(method) === 'function') {
method.call(this, params);
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}
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}
searchTerms(textSource) {
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textSource.setEndOffset(this.options.scanLength);
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this.pendingLookup = true;
return findTerm(textSource.text()).then(({definitions, length}) => {
if (definitions.length === 0) {
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this.pendingLookup = false;
return false;
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} else {
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textSource.setEndOffset(length);
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const sentence = extractSentence(textSource, this.options.sentenceExtent);
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definitions.forEach(definition => {
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definition.url = window.location.href;
definition.sentence = sentence;
});
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const sequence = ++this.sequence;
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const context = {
definitions,
sequence,
addable: this.options.ankiMethod !== 'disabled',
root: this.fgRoot,
options: this.options
};
return renderText(context, 'term-list.html').then(content => {
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this.definitions = definitions;
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this.pendingLookup = false;
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this.showPopup(textSource, content);
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return canAddDefinitions(definitions, ['term_kanji', 'term_kana']);
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}).then(states => {
if (states !== null) {
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states.forEach((state, index) => this.popup.invokeApi(
'setActionState',
{index, state, sequence}
));
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}
return true;
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});
}
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});
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}
searchKanji(textSource) {
textSource.setEndOffset(1);
this.pendingLookup = true;
return findKanji(textSource.text()).then(definitions => {
if (definitions.length === 0) {
this.pendingLookup = false;
return false;
} else {
definitions.forEach(definition => definition.url = window.location.href);
const sequence = ++this.sequence;
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const context = {
definitions,
sequence,
addable: this.options.ankiMethod !== 'disabled',
root: this.fgRoot,
options: this.options
};
return renderText(context, 'kanji-list.html').then(content => {
this.definitions = definitions;
this.pendingLookup = false;
this.showPopup(textSource, content);
return canAddDefinitions(definitions, ['kanji']);
}).then(states => {
if (states !== null) {
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states.forEach((state, index) => this.popup.invokeApi(
'setActionState',
{index, state, sequence}
));
}
return true;
});
}
});
}
searchAt(point, hideNotFound) {
if (this.pendingLookup) {
return;
}
const textSource = textSourceFromPoint(point);
if (textSource === null || !textSource.containsPoint(point)) {
if (hideNotFound) {
this.hidePopup();
}
return;
}
if (this.lastTextSource !== null && this.lastTextSource.equals(textSource)) {
return true;
}
this.searchTerms(textSource).then(found => {
if (!found) {
this.searchKanji(textSource).then(found => {
if (!found && hideNotFound) {
this.hidePopup();
}
});
}
});
}
showPopup(textSource, content) {
this.popup.showNextTo(textSource.getRect(), content);
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if (this.options.selectMatchedText) {
textSource.select();
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}
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this.lastTextSource = textSource;
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}
hidePopup() {
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this.popup.hide();
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if (this.options.selectMatchedText && this.lastTextSource !== null) {
this.lastTextSource.deselect();
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}
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this.lastTextSource = null;
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this.definitions = null;
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}
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api_setOptions(opts) {
this.options = opts;
}
api_setEnabled(enabled) {
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if (!(this.enabled = enabled)) {
this.hidePopup();
}
}
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api_addNote({index, mode}) {
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const state = {[mode]: false};
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addDefinition(this.definitions[index], mode).then(success => {
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if (success) {
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this.popup.invokeApi('setActionState', {index, state, sequence: this.sequence});
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} else {
alert('Note could not be added');
}
});
}
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api_playAudio(index) {
const definition = this.definitions[index];
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let url = `https://assets.languagepod101.com/dictionary/japanese/audiomp3.php?kanji=${encodeURIComponent(definition.expression)}`;
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if (definition.reading) {
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url += `&kana=${encodeURIComponent(definition.reading)}`;
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}
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for (const key in this.audio) {
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this.audio[key].pause();
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}
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const audio = this.audio[url] || new Audio(url);
audio.currentTime = 0;
audio.play();
this.audio[url] = audio;
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}
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api_displayKanji(kanji) {
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findKanji(kanji).then(definitions => {
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definitions.forEach(definition => definition.url = window.location.href);
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const sequence = ++this.sequence;
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const context = {
definitions,
sequence,
addable: this.options.ankiMethod !== 'disabled',
root: this.fgRoot,
options: this.options
};
return renderText(context, 'kanji-list.html').then(content => {
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this.definitions = definitions;
this.popup.setContent(content, definitions);
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return canAddDefinitions(definitions, ['kanji']);
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}).then(states => {
if (states !== null) {
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states.forEach((state, index) => this.popup.invokeApi('setActionState', {index, state, sequence}));
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}
});
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});
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}
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}
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window.driver = new Driver();