/* * Copyright (C) 2016-2017 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/>. */ class DisplaySearch extends Display { constructor() { super(document.querySelector('#spinner'), document.querySelector('#content')); this.optionsContext = { depth: 0, url: window.location.href }; this.search = document.querySelector('#search'); this.query = document.querySelector('#query'); this.intro = document.querySelector('#intro'); this.introVisible = true; this.introAnimationTimer = null; } static create() { const instance = new DisplaySearch(); instance.prepare(); return instance; } async prepare() { try { await this.initialize(); if (this.search !== null) { this.search.addEventListener('click', (e) => this.onSearch(e), false); } if (this.query !== null) { this.query.addEventListener('input', () => this.onSearchInput(), false); const query = DisplaySearch.getSearchQueryFromLocation(window.location.href); if (query !== null) { this.query.value = window.wanakana.toKana(query); this.onSearchQueryUpdated(query, false); } window.wanakana.bind(this.query); } 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(); this.query.scrollIntoView(); } onSearch(e) { if (this.query === null) { return; } e.preventDefault(); const query = this.query.value; const queryString = query.length > 0 ? `?query=${encodeURIComponent(query)}` : ''; window.history.replaceState(null, '', `${window.location.pathname}${queryString}`); this.onSearchQueryUpdated(query, true); } onKeyDown(e) { const key = Display.getKeyFromEvent(e); let activeModifierMap = { 'Control': e.ctrlKey, 'Meta': e.metaKey }; // true if no known modifier is pressed activeModifierMap[undefined] = !Object.values(activeModifierMap).includes(true); const ignoreKeys = { undefined: ['Tab'], 'Control': ['C', 'A', 'V'], 'Meta': ['C', 'A', 'V'], 'OS': [], 'Alt': [], 'Shift': [] } 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) { this.query.focus({preventScroll: true}); } } async onSearchQueryUpdated(query, animate) { try { const valid = (query.length > 0); this.setIntroVisible(!valid, animate); this.updateSearchButton(); if (valid) { const {definitions} = await apiTermsFind(query, this.optionsContext); this.setContentTerms(definitions, { focus: false, sentence: null, url: window.location.href }); } else { this.container.textContent = ''; } } catch (e) { this.onError(e); } } 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); } } getOptionsContext() { return this.optionsContext; } setCustomCss() { // No custom CSS } 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); } static getSearchQueryFromLocation(url) { let match = /^[^\?#]*\?(?:[^&#]*&)?query=([^&#]*)/.exec(url); return match !== null ? decodeURIComponent(match[1]) : null; } } DisplaySearch.runtimeMessageHandlers = { getUrl: () => { return {url: window.location.href}; } }; window.yomichan_search = DisplaySearch.create();