0a8992d215
* Always allow history to go back/forward when using browser history * Add a back button which is visible when using the query parser
444 lines
15 KiB
JavaScript
444 lines
15 KiB
JavaScript
/*
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* Copyright (C) 2016-2021 Yomichan Authors
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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 <https://www.gnu.org/licenses/>.
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*/
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/* global
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* ClipboardMonitor
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* wanakana
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*/
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class SearchDisplayController {
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constructor(tabId, frameId, display, displayAudio, japaneseUtil, searchPersistentStateController) {
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this._tabId = tabId;
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this._frameId = frameId;
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this._display = display;
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this._displayAudio = displayAudio;
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this._searchPersistentStateController = searchPersistentStateController;
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this._searchButton = document.querySelector('#search-button');
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this._searchBackButton = document.querySelector('#search-back-button');
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this._queryInput = document.querySelector('#search-textbox');
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this._introElement = document.querySelector('#intro');
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this._clipboardMonitorEnableCheckbox = document.querySelector('#clipboard-monitor-enable');
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this._wanakanaEnableCheckbox = document.querySelector('#wanakana-enable');
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this._queryInputEvents = new EventListenerCollection();
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this._queryInputEventsSetup = false;
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this._wanakanaEnabled = false;
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this._wanakanaBound = false;
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this._introVisible = true;
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this._introAnimationTimer = null;
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this._clipboardMonitorEnabled = false;
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this._clipboardMonitor = new ClipboardMonitor({
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japaneseUtil,
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clipboardReader: {
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getText: async () => (await yomichan.api.clipboardGet())
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}
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});
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this._messageHandlers = new Map();
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}
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async prepare() {
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await this._display.updateOptions();
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this._searchPersistentStateController.on('modeChange', this._onModeChange.bind(this));
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chrome.runtime.onMessage.addListener(this._onMessage.bind(this));
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yomichan.on('optionsUpdated', this._onOptionsUpdated.bind(this));
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this._display.on('optionsUpdated', this._onDisplayOptionsUpdated.bind(this));
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this._display.on('contentUpdateStart', this._onContentUpdateStart.bind(this));
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this._display.hotkeyHandler.registerActions([
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['focusSearchBox', this._onActionFocusSearchBox.bind(this)]
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]);
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this._registerMessageHandlers([
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['getMode', {async: false, handler: this._onMessageGetMode.bind(this)}],
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['setMode', {async: false, handler: this._onMessageSetMode.bind(this)}],
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['updateSearchQuery', {async: false, handler: this._onExternalSearchUpdate.bind(this)}]
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]);
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this._updateClipboardMonitorEnabled();
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this._displayAudio.autoPlayAudioDelay = 0;
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this._display.queryParserVisible = true;
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this._display.setHistorySettings({useBrowserHistory: true});
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this._searchButton.addEventListener('click', this._onSearch.bind(this), false);
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this._searchBackButton.addEventListener('click', this._onSearchBackButtonClick.bind(this), false);
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this._wanakanaEnableCheckbox.addEventListener('change', this._onWanakanaEnableChange.bind(this));
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window.addEventListener('copy', this._onCopy.bind(this));
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this._clipboardMonitor.on('change', this._onExternalSearchUpdate.bind(this));
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this._clipboardMonitorEnableCheckbox.addEventListener('change', this._onClipboardMonitorEnableChange.bind(this));
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this._display.hotkeyHandler.on('keydownNonHotkey', this._onKeyDown.bind(this));
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this._onDisplayOptionsUpdated({options: this._display.getOptions()});
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}
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setMode(mode) {
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this._setMode(mode, true);
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}
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// Actions
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_onActionFocusSearchBox() {
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if (this._queryInput === null) { return; }
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this._queryInput.focus();
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this._queryInput.select();
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}
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// Messages
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_onMessageSetMode({mode}) {
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this._searchPersistentStateController.mode = mode;
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}
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_onMessageGetMode() {
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return this._searchPersistentStateController.mode;
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}
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// Private
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_onMessage({action, params}, sender, callback) {
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const messageHandler = this._messageHandlers.get(action);
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if (typeof messageHandler === 'undefined') { return false; }
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return invokeMessageHandler(messageHandler, params, callback, sender);
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}
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_onKeyDown(e) {
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const {activeElement} = document;
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if (
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activeElement !== this._queryInput &&
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!this._isElementInput(activeElement) &&
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!e.ctrlKey &&
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!e.metaKey &&
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!e.altKey &&
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e.key.length === 1 &&
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e.key !== ' '
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) {
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this._queryInput.focus({preventScroll: true});
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}
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}
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async _onOptionsUpdated() {
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await this._display.updateOptions();
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const query = this._queryInput.value;
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if (query) {
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this._display.searchLast();
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}
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}
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_onDisplayOptionsUpdated({options}) {
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this._clipboardMonitorEnabled = options.clipboard.enableSearchPageMonitor;
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this._updateClipboardMonitorEnabled();
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const enableWanakana = !!this._display.getOptions().general.enableWanakana;
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this._wanakanaEnableCheckbox.checked = enableWanakana;
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this._setWanakanaEnabled(enableWanakana);
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}
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_onContentUpdateStart({type, query}) {
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let animate = false;
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let valid = false;
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let showBackButton = false;
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switch (type) {
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case 'terms':
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case 'kanji':
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{
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const {content, state} = this._display.history;
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animate = (typeof content === 'object' && content !== null && content.animate === true);
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showBackButton = (typeof state === 'object' && state !== null && state.cause === 'queryParser');
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valid = (typeof query === 'string' && query.length > 0);
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this._display.blurElement(this._queryInput);
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}
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break;
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case 'clear':
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valid = false;
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animate = true;
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query = '';
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break;
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}
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if (typeof query !== 'string') { query = ''; }
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this._searchBackButton.hidden = !showBackButton;
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if (this._queryInput.value !== query) {
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this._queryInput.value = query;
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this._updateSearchHeight(true);
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}
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this._setIntroVisible(!valid, animate);
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}
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_onSearchInput() {
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this._updateSearchHeight(false);
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}
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_onSearchKeydown(e) {
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if (e.isComposing) { return; }
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const {code} = e;
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if (!((code === 'Enter' || code === 'NumpadEnter') && !e.shiftKey)) { return; }
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// Search
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e.preventDefault();
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e.stopImmediatePropagation();
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this._display.blurElement(e.currentTarget);
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this._search(true, 'new', true, null);
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}
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_onSearch(e) {
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e.preventDefault();
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this._search(true, 'new', true, null);
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}
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_onSearchBackButtonClick() {
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this._display.history.back();
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}
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_onCopy() {
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// ignore copy from search page
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this._clipboardMonitor.setPreviousText(window.getSelection().toString().trim());
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}
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_onExternalSearchUpdate({text, animate=true}) {
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const {clipboard: {autoSearchContent, maximumSearchLength}} = this._display.getOptions();
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if (text.length > maximumSearchLength) {
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text = text.substring(0, maximumSearchLength);
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}
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this._queryInput.value = text;
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this._updateSearchHeight(true);
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this._search(animate, 'clear', autoSearchContent, ['clipboard']);
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}
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_onWanakanaEnableChange(e) {
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const value = e.target.checked;
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this._setWanakanaEnabled(value);
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yomichan.api.modifySettings([{
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action: 'set',
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path: 'general.enableWanakana',
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value,
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scope: 'profile',
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optionsContext: this._display.getOptionsContext()
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}], 'search');
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}
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_onClipboardMonitorEnableChange(e) {
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const enabled = e.target.checked;
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this._setClipboardMonitorEnabled(enabled);
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}
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_onModeChange() {
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this._updateClipboardMonitorEnabled();
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}
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_setWanakanaEnabled(enabled) {
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if (this._queryInputEventsSetup && this._wanakanaEnabled === enabled) { return; }
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const input = this._queryInput;
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this._queryInputEvents.removeAllEventListeners();
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this._queryInputEvents.addEventListener(input, 'keydown', this._onSearchKeydown.bind(this), false);
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this._wanakanaEnabled = enabled;
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if (enabled) {
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if (!this._wanakanaBound) {
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wanakana.bind(input);
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this._wanakanaBound = true;
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}
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} else {
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if (this._wanakanaBound) {
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wanakana.unbind(input);
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this._wanakanaBound = false;
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}
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}
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this._queryInputEvents.addEventListener(input, 'input', this._onSearchInput.bind(this), false);
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this._queryInputEventsSetup = true;
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}
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_setIntroVisible(visible, animate) {
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if (this._introVisible === visible) {
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return;
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}
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this._introVisible = visible;
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if (this._introElement === null) {
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return;
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}
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if (this._introAnimationTimer !== null) {
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clearTimeout(this._introAnimationTimer);
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this._introAnimationTimer = null;
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}
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if (visible) {
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this._showIntro(animate);
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} else {
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this._hideIntro(animate);
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}
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}
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_showIntro(animate) {
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if (animate) {
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const duration = 0.4;
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this._introElement.style.transition = '';
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this._introElement.style.height = '';
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const size = this._introElement.getBoundingClientRect();
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this._introElement.style.height = '0px';
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this._introElement.style.transition = `height ${duration}s ease-in-out 0s`;
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window.getComputedStyle(this._introElement).getPropertyValue('height'); // Commits height so next line can start animation
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this._introElement.style.height = `${size.height}px`;
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this._introAnimationTimer = setTimeout(() => {
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this._introElement.style.height = '';
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this._introAnimationTimer = null;
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}, duration * 1000);
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} else {
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this._introElement.style.transition = '';
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this._introElement.style.height = '';
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}
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}
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_hideIntro(animate) {
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if (animate) {
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const duration = 0.4;
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const size = this._introElement.getBoundingClientRect();
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this._introElement.style.height = `${size.height}px`;
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this._introElement.style.transition = `height ${duration}s ease-in-out 0s`;
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window.getComputedStyle(this._introElement).getPropertyValue('height'); // Commits height so next line can start animation
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} else {
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this._introElement.style.transition = '';
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}
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this._introElement.style.height = '0';
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}
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async _setClipboardMonitorEnabled(value) {
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let modify = true;
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if (value) {
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value = await this._requestPermissions(['clipboardRead']);
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modify = value;
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}
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this._clipboardMonitorEnabled = value;
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this._updateClipboardMonitorEnabled();
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if (!modify) { return; }
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await yomichan.api.modifySettings([{
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action: 'set',
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path: 'clipboard.enableSearchPageMonitor',
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value,
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scope: 'profile',
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optionsContext: this._display.getOptionsContext()
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}], 'search');
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}
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_updateClipboardMonitorEnabled() {
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const enabled = this._clipboardMonitorEnabled;
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this._clipboardMonitorEnableCheckbox.checked = enabled;
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if (enabled && this._canEnableClipboardMonitor()) {
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this._clipboardMonitor.start();
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} else {
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this._clipboardMonitor.stop();
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}
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}
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_canEnableClipboardMonitor() {
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switch (this._searchPersistentStateController.mode) {
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case 'popup':
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case 'action-popup':
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return false;
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default:
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return true;
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}
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}
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_requestPermissions(permissions) {
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return new Promise((resolve) => {
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chrome.permissions.request(
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{permissions},
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(granted) => {
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const e = chrome.runtime.lastError;
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resolve(!e && granted);
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}
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);
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});
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}
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_search(animate, historyMode, lookup, flags) {
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const query = this._queryInput.value;
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const depth = this._display.depth;
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const url = window.location.href;
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const documentTitle = document.title;
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const optionsContext = {depth, url};
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if (flags !== null) {
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optionsContext.flags = flags;
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}
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const details = {
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focus: false,
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historyMode,
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params: {
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query
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},
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state: {
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focusEntry: 0,
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optionsContext,
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url,
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sentence: {text: query, offset: 0},
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documentTitle
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},
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content: {
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dictionaryEntries: null,
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animate,
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contentOrigin: {
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tabId: this._tabId,
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frameId: this._frameId
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}
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}
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};
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if (!lookup) { details.params.lookup = 'false'; }
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this._display.setContent(details);
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}
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_updateSearchHeight(shrink) {
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const node = this._queryInput;
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if (shrink) {
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node.style.height = '0';
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}
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const {scrollHeight} = node;
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const currentHeight = node.getBoundingClientRect().height;
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if (shrink || scrollHeight >= currentHeight - 1) {
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node.style.height = `${scrollHeight}px`;
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}
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}
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_registerMessageHandlers(handlers) {
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for (const [name, handlerInfo] of handlers) {
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this._messageHandlers.set(name, handlerInfo);
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}
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}
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_isElementInput(element) {
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if (element === null) { return false; }
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switch (element.tagName.toLowerCase()) {
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case 'input':
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case 'textarea':
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case 'button':
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case 'select':
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return true;
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}
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if (element.isContentEditable) { return true; }
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return false;
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}
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}
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