yomichan/ext/bg/js/search.js

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JavaScript
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/*
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* Copyright (C) 2016-2017 Alex Yatskov <alex@foosoft.net>
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* 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/>.
*/
let IS_FIREFOX = null;
(async () => {
const {browser} = await apiGetEnvironmentInfo();
IS_FIREFOX = ['firefox', 'firefox-mobile'].includes(browser);
})();
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class DisplaySearch extends Display {
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constructor() {
super(document.querySelector('#spinner'), document.querySelector('#content'));
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this.optionsContext = {
depth: 0,
url: window.location.href
};
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this.search = document.querySelector('#search');
this.query = document.querySelector('#query');
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this.intro = document.querySelector('#intro');
this.clipboardMonitorEnable = document.querySelector('#clipboard-monitor-enable');
this.wanakanaEnable = document.querySelector('#wanakana-enable');
this.introVisible = true;
this.introAnimationTimer = null;
this.clipboardMonitorIntervalId = null;
this.clipboardPrevText = null;
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}
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static create() {
const instance = new DisplaySearch();
instance.prepare();
return instance;
}
async prepare() {
try {
await this.initialize();
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if (this.search !== null) {
this.search.addEventListener('click', (e) => this.onSearch(e), false);
}
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if (this.query !== null) {
this.query.addEventListener('input', () => this.onSearchInput(), false);
if (this.wanakanaEnable !== null) {
if (this.options.general.enableWanakana === true) {
this.wanakanaEnable.checked = true;
window.wanakana.bind(this.query);
} else {
this.wanakanaEnable.checked = false;
}
this.wanakanaEnable.addEventListener('change', (e) => {
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const query = DisplaySearch.getSearchQueryFromLocation(window.location.href) || '';
if (e.target.checked) {
window.wanakana.bind(this.query);
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this.query.value = window.wanakana.toKana(query);
apiOptionsSet({general: {enableWanakana: true}}, this.getOptionsContext());
} else {
window.wanakana.unbind(this.query);
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this.query.value = query;
apiOptionsSet({general: {enableWanakana: false}}, this.getOptionsContext());
}
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this.onSearchQueryUpdated(this.query.value, false);
});
}
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const query = DisplaySearch.getSearchQueryFromLocation(window.location.href);
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if (query !== null) {
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if (this.isWanakanaEnabled()) {
this.query.value = window.wanakana.toKana(query);
} else {
this.query.value = query;
}
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this.onSearchQueryUpdated(this.query.value, false);
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}
}
if (this.clipboardMonitorEnable !== null) {
if (this.options.general.enableClipboardMonitor === true) {
this.clipboardMonitorEnable.checked = true;
this.startClipboardMonitor();
} else {
this.clipboardMonitorEnable.checked = false;
}
this.clipboardMonitorEnable.addEventListener('change', (e) => {
if (e.target.checked) {
chrome.permissions.request(
{permissions: ['clipboardRead']},
(granted) => {
if (granted) {
this.startClipboardMonitor();
apiOptionsSet({general: {enableClipboardMonitor: true}}, this.getOptionsContext());
} else {
e.target.checked = false;
}
}
);
} else {
this.stopClipboardMonitor();
apiOptionsSet({general: {enableClipboardMonitor: false}}, this.getOptionsContext());
}
});
}
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window.addEventListener('popstate', (e) => this.onPopState(e));
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this.updateSearchButton();
this.initClipboardMonitor();
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} catch (e) {
this.onError(e);
}
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}
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onError(error) {
logError(error, true);
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}
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onSearchClear() {
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if (this.query === null) {
return;
}
this.query.focus();
this.query.select();
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}
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onSearchInput() {
this.updateSearchButton();
const queryElementRect = this.query.getBoundingClientRect();
if (queryElementRect.top < 0 || queryElementRect.bottom > window.innerHeight) {
this.query.scrollIntoView();
}
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}
onSearch(e) {
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if (this.query === null) {
return;
}
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e.preventDefault();
const query = this.query.value;
const queryString = query.length > 0 ? `?query=${encodeURIComponent(query)}` : '';
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window.history.pushState(null, '', `${window.location.pathname}${queryString}`);
this.onSearchQueryUpdated(query, true);
}
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onPopState(e) {
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const query = DisplaySearch.getSearchQueryFromLocation(window.location.href) || '';
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if (this.query !== null) {
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if (this.isWanakanaEnabled()) {
this.query.value = window.wanakana.toKana(query);
} else {
this.query.value = query;
}
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}
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this.onSearchQueryUpdated(this.query.value, false);
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}
onKeyDown(e) {
const key = Display.getKeyFromEvent(e);
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const ignoreKeys = DisplaySearch.onKeyDownIgnoreKeys;
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const activeModifierMap = {
'Control': e.ctrlKey,
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'Meta': e.metaKey,
'ANY_MOD': true
};
let preventFocus = false;
for (const [modifier, keys] of Object.entries(ignoreKeys)) {
const modifierActive = activeModifierMap[modifier];
if (key === modifier || (modifierActive && keys.includes(key))) {
preventFocus = true;
break;
}
}
if (!super.onKeyDown(e) && !preventFocus && document.activeElement !== this.query) {
this.query.focus({preventScroll: true});
}
}
async onSearchQueryUpdated(query, animate) {
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try {
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const details = {};
const match = /[\*\uff0a]+$/.exec(query);
if (match !== null) {
details.wildcard = true;
query = query.substring(0, query.length - match[0].length);
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}
const valid = (query.length > 0);
this.setIntroVisible(!valid, animate);
this.updateSearchButton();
if (valid) {
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const {definitions} = await apiTermsFind(query, details, this.optionsContext);
this.setContentTerms(definitions, {
focus: false,
sentence: null,
url: window.location.href
});
} else {
this.container.textContent = '';
}
window.parent.postMessage('popupClose', '*');
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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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onRuntimeMessage({action, params}, sender, callback) {
const handlers = DisplaySearch.runtimeMessageHandlers;
if (handlers.hasOwnProperty(action)) {
const handler = handlers[action];
const result = handler(this, params);
callback(result);
} else {
return super.onRuntimeMessage({action, params}, sender, callback);
}
}
initClipboardMonitor() {
// ignore copy from search page
window.addEventListener('copy', (e) => {
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this.clipboardPrevText = document.getSelection().toString().trim();
});
}
startClipboardMonitor() {
this.clipboardMonitorIntervalId = setInterval(async () => {
let curText = null;
// TODO get rid of this and figure out why apiClipboardGet doesn't work on Firefox
if (IS_FIREFOX) {
curText = (await navigator.clipboard.readText()).trim();
} else if (IS_FIREFOX === false) {
curText = (await apiClipboardGet()).trim();
}
if (curText && (curText !== this.clipboardPrevText) && jpIsJapaneseText(curText)) {
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if (this.isWanakanaEnabled()) {
this.query.value = window.wanakana.toKana(curText);
} else {
this.query.value = curText;
}
const queryString = curText.length > 0 ? `?query=${encodeURIComponent(curText)}` : '';
window.history.pushState(null, '', `${window.location.pathname}${queryString}`);
this.onSearchQueryUpdated(this.query.value, true);
this.clipboardPrevText = curText;
}
}, 100);
}
stopClipboardMonitor() {
if (this.clipboardMonitorIntervalId) {
clearInterval(this.clipboardMonitorIntervalId);
this.clipboardMonitorIntervalId = null;
}
}
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isWanakanaEnabled() {
return this.wanakanaEnable !== null && this.wanakanaEnable.checked;
}
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getOptionsContext() {
return this.optionsContext;
}
setIntroVisible(visible, animate) {
if (this.introVisible === visible) {
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return;
}
this.introVisible = visible;
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if (this.intro === null) {
return;
}
if (this.introAnimationTimer !== null) {
clearTimeout(this.introAnimationTimer);
this.introAnimationTimer = null;
}
if (visible) {
this.showIntro(animate);
} else {
this.hideIntro(animate);
}
}
showIntro(animate) {
if (animate) {
const duration = 0.4;
this.intro.style.transition = '';
this.intro.style.height = '';
const size = this.intro.getBoundingClientRect();
this.intro.style.height = `0px`;
this.intro.style.transition = `height ${duration}s ease-in-out 0s`;
window.getComputedStyle(this.intro).getPropertyValue('height'); // Commits height so next line can start animation
this.intro.style.height = `${size.height}px`;
this.introAnimationTimer = setTimeout(() => {
this.intro.style.height = '';
this.introAnimationTimer = null;
}, duration * 1000);
} else {
this.intro.style.transition = '';
this.intro.style.height = '';
}
}
hideIntro(animate) {
if (animate) {
const duration = 0.4;
const size = this.intro.getBoundingClientRect();
this.intro.style.height = `${size.height}px`;
this.intro.style.transition = `height ${duration}s ease-in-out 0s`;
window.getComputedStyle(this.intro).getPropertyValue('height'); // Commits height so next line can start animation
} else {
this.intro.style.transition = '';
}
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this.intro.style.height = '0';
}
updateSearchButton() {
this.search.disabled = this.introVisible && (this.query === null || this.query.value.length === 0);
}
static getSearchQueryFromLocation(url) {
let match = /^[^\?#]*\?(?:[^&#]*&)?query=([^&#]*)/.exec(url);
return match !== null ? decodeURIComponent(match[1]) : null;
}
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}
DisplaySearch.runtimeMessageHandlers = {
getUrl: () => {
return {url: window.location.href};
}
};
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DisplaySearch.onKeyDownIgnoreKeys = {
'ANY_MOD': [
'Tab', 'ArrowUp', 'ArrowDown', 'ArrowLeft', 'ArrowRight', 'PageDown', 'PageUp', 'Home', 'End',
'F1', 'F2', 'F3', 'F4', 'F5', 'F6', 'F7', 'F8', 'F9', 'F10',
'F11', 'F12', 'F13', 'F14', 'F15', 'F16', 'F17', 'F18', 'F19', 'F20',
'F21', 'F22', 'F23', 'F24'
],
'Control': ['C', 'A', 'Z', 'Y', 'X', 'F', 'G'],
'Meta': ['C', 'A', 'Z', 'Y', 'X', 'F', 'G'],
'OS': [],
'Alt': [],
'AltGraph': [],
'Shift': []
};
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window.yomichan_search = DisplaySearch.create();