yomichan/ext/bg/js/search.js
2020-03-02 04:51:45 +02:00

369 lines
12 KiB
JavaScript

/*
* Copyright (C) 2016-2020 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 <https://www.gnu.org/licenses/>.
*/
/*global apiOptionsSet, apiTermsFind, Display, QueryParser, ClipboardMonitor*/
class DisplaySearch extends Display {
constructor() {
super(document.querySelector('#spinner'), document.querySelector('#content'));
this.optionsContext = {
depth: 0,
url: window.location.href
};
this.queryParser = new QueryParser(this);
this.search = document.querySelector('#search');
this.query = document.querySelector('#query');
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.clipboardMonitor = new ClipboardMonitor();
this._onKeyDownIgnoreKeys = new Map([
['ANY_MOD', new Set([
'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', new Set(['C', 'A', 'Z', 'Y', 'X', 'F', 'G'])],
['Meta', new Set(['C', 'A', 'Z', 'Y', 'X', 'F', 'G'])],
['OS', new Set()],
['Alt', new Set()],
['AltGraph', new Set()],
['Shift', new Set()]
]);
this._runtimeMessageHandlers = new Map([
['searchQueryUpdate', ({query}) => { this.onExternalSearchUpdate(query); }]
]);
}
static create() {
const instance = new DisplaySearch();
instance.prepare();
return instance;
}
async prepare() {
try {
await super.prepare();
await this.queryParser.prepare();
const {queryParams: {query='', mode=''}} = parseUrl(window.location.href);
document.documentElement.dataset.searchMode = mode;
if (this.options.general.enableWanakana === true) {
this.wanakanaEnable.checked = true;
window.wanakana.bind(this.query);
} else {
this.wanakanaEnable.checked = false;
}
this.setQuery(query);
this.onSearchQueryUpdated(this.query.value, false);
if (mode !== 'popup') {
if (this.options.general.enableClipboardMonitor === true) {
this.clipboardMonitorEnable.checked = true;
this.clipboardMonitor.start();
} else {
this.clipboardMonitorEnable.checked = false;
}
this.clipboardMonitorEnable.addEventListener('change', this.onClipboardMonitorEnableChange.bind(this));
}
chrome.runtime.onMessage.addListener(this.onRuntimeMessage.bind(this));
this.search.addEventListener('click', this.onSearch.bind(this), false);
this.query.addEventListener('input', this.onSearchInput.bind(this), false);
this.wanakanaEnable.addEventListener('change', this.onWanakanaEnableChange.bind(this));
window.addEventListener('popstate', this.onPopState.bind(this));
window.addEventListener('copy', this.onCopy.bind(this));
this.clipboardMonitor.onClipboardText = this.onExternalSearchUpdate.bind(this);
this.updateSearchButton();
} catch (e) {
this.onError(e);
}
}
onError(error) {
logError(error, true);
}
onSearchClear() {
if (this.query === null) {
return;
}
this.query.focus();
this.query.select();
}
onSearchInput() {
this.updateSearchButton();
const queryElementRect = this.query.getBoundingClientRect();
if (queryElementRect.top < 0 || queryElementRect.bottom > window.innerHeight) {
this.query.scrollIntoView();
}
}
onSearch(e) {
if (this.query === null) {
return;
}
e.preventDefault();
const query = this.query.value;
this.queryParser.setText(query);
const url = new URL(window.location.href);
url.searchParams.set('query', query);
window.history.pushState(null, '', url.toString());
this.onSearchQueryUpdated(query, true);
}
onPopState() {
const {queryParams: {query='', mode=''}} = parseUrl(window.location.href);
document.documentElement.dataset.searchMode = mode;
this.setQuery(query);
this.onSearchQueryUpdated(this.query.value, false);
}
onRuntimeMessage({action, params}, sender, callback) {
const handler = this._runtimeMessageHandlers.get(action);
if (typeof handler !== 'function') { return false; }
const result = handler(params, sender);
callback(result);
return false;
}
onKeyDown(e) {
const key = Display.getKeyFromEvent(e);
const ignoreKeys = this._onKeyDownIgnoreKeys;
const activeModifierMap = new Map([
['Control', e.ctrlKey],
['Meta', e.metaKey],
['Shift', e.shiftKey],
['Alt', e.altKey],
['ANY_MOD', true]
]);
let preventFocus = false;
for (const [modifier, keys] of ignoreKeys.entries()) {
const modifierActive = activeModifierMap.get(modifier);
if (key === modifier || (modifierActive && keys.has(key))) {
preventFocus = true;
break;
}
}
if (!super.onKeyDown(e) && !preventFocus && document.activeElement !== this.query) {
this.query.focus({preventScroll: true});
}
}
onCopy() {
// ignore copy from search page
this.clipboardMonitor.setPreviousText(document.getSelection().toString().trim());
}
onExternalSearchUpdate(text) {
this.setQuery(text);
const url = new URL(window.location.href);
url.searchParams.set('query', text);
window.history.pushState(null, '', url.toString());
this.onSearchQueryUpdated(this.query.value, true);
}
async onSearchQueryUpdated(query, animate) {
try {
const details = {};
const match = /^([*\uff0a]*)([\w\W]*?)([*\uff0a]*)$/.exec(query);
if (match !== null) {
if (match[1]) {
details.wildcard = 'prefix';
} else if (match[3]) {
details.wildcard = 'suffix';
}
query = match[2];
}
const valid = (query.length > 0);
this.setIntroVisible(!valid, animate);
this.updateSearchButton();
if (valid) {
const {definitions} = await apiTermsFind(query, details, this.optionsContext);
this.setContent('terms', {definitions, context: {
focus: false,
disableHistory: true,
sentence: {text: query, offset: 0},
url: window.location.href
}});
} else {
this.container.textContent = '';
}
this.setTitleText(query);
window.parent.postMessage('popupClose', '*');
} catch (e) {
this.onError(e);
}
}
onWanakanaEnableChange(e) {
const {queryParams: {query=''}} = parseUrl(window.location.href);
const enableWanakana = e.target.checked;
if (enableWanakana) {
window.wanakana.bind(this.query);
} else {
window.wanakana.unbind(this.query);
}
this.setQuery(query);
this.onSearchQueryUpdated(this.query.value, false);
apiOptionsSet({general: {enableWanakana}}, this.getOptionsContext());
}
onClipboardMonitorEnableChange(e) {
if (e.target.checked) {
chrome.permissions.request(
{permissions: ['clipboardRead']},
(granted) => {
if (granted) {
this.clipboardMonitor.start();
apiOptionsSet({general: {enableClipboardMonitor: true}}, this.getOptionsContext());
} else {
e.target.checked = false;
}
}
);
} else {
this.clipboardMonitor.stop();
apiOptionsSet({general: {enableClipboardMonitor: false}}, this.getOptionsContext());
}
}
async updateOptions(options) {
await super.updateOptions(options);
this.queryParser.setOptions(this.options);
}
isWanakanaEnabled() {
return this.wanakanaEnable !== null && this.wanakanaEnable.checked;
}
getOptionsContext() {
return this.optionsContext;
}
setQuery(query) {
const interpretedQuery = this.isWanakanaEnabled() ? window.wanakana.toKana(query) : query;
this.query.value = interpretedQuery;
this.queryParser.setText(interpretedQuery);
}
setIntroVisible(visible, animate) {
if (this.introVisible === visible) {
return;
}
this.introVisible = visible;
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 ${duration}s ease-in-out 0s`;
window.getComputedStyle(this.intro).getPropertyValue('height'); // Commits height so next line can start animation
} else {
this.intro.style.transition = '';
}
this.intro.style.height = '0';
}
updateSearchButton() {
this.search.disabled = this.introVisible && (this.query === null || this.query.value.length === 0);
}
setTitleText(text) {
// Chrome limits title to 1024 characters
if (text.length > 1000) {
text = text.substring(0, 1000) + '...';
}
if (text.length === 0) {
document.title = 'Yomichan Search';
} else {
document.title = `${text} - Yomichan Search`;
}
}
}
DisplaySearch.instance = DisplaySearch.create();