234 lines
7.9 KiB
JavaScript
234 lines
7.9 KiB
JavaScript
/*
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* Copyright (C) 2019-2021 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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* Frontend
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* TextSourceRange
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* api
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* wanakana
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*/
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class PopupPreviewFrame {
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constructor(tabId, frameId, popupFactory, hotkeyHandler) {
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this._tabId = tabId;
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this._frameId = frameId;
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this._popupFactory = popupFactory;
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this._hotkeyHandler = hotkeyHandler;
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this._frontend = null;
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this._apiOptionsGetOld = null;
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this._popupShown = false;
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this._themeChangeTimeout = null;
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this._textSource = null;
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this._optionsContext = null;
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this._exampleText = null;
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this._exampleTextInput = null;
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this._targetOrigin = chrome.runtime.getURL('/').replace(/\/$/, '');
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this._windowMessageHandlers = new Map([
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['setText', this._onSetText.bind(this)],
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['setCustomCss', this._setCustomCss.bind(this)],
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['setCustomOuterCss', this._setCustomOuterCss.bind(this)],
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['updateOptionsContext', this._updateOptionsContext.bind(this)]
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]);
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}
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async prepare() {
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this._exampleText = document.querySelector('#example-text');
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this._exampleTextInput = document.querySelector('#example-text-input');
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if (this._exampleTextInput !== null && typeof wanakana !== 'undefined') {
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wanakana.bind(this._exampleTextInput);
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}
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window.addEventListener('message', this._onMessage.bind(this), false);
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// Setup events
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document.querySelector('#theme-dark-checkbox').addEventListener('change', this._onThemeDarkCheckboxChanged.bind(this), false);
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this._exampleText.addEventListener('click', this._onExampleTextClick.bind(this), false);
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this._exampleTextInput.addEventListener('blur', this._onExampleTextInputBlur.bind(this), false);
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this._exampleTextInput.addEventListener('input', this._onExampleTextInputInput.bind(this), false);
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// Overwrite API functions
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this._apiOptionsGetOld = api.optionsGet.bind(api);
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api.optionsGet = this._apiOptionsGet.bind(this);
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// Overwrite frontend
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this._frontend = new Frontend({
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tabId: this._tabId,
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frameId: this._frameId,
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popupFactory: this._popupFactory,
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depth: 0,
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parentPopupId: null,
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parentFrameId: null,
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useProxyPopup: false,
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canUseWindowPopup: false,
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pageType: 'web',
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allowRootFramePopupProxy: false,
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childrenSupported: false,
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hotkeyHandler: this._hotkeyHandler
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});
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this._frontend.setOptionsContextOverride(this._optionsContext);
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await this._frontend.prepare();
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this._frontend.setDisabledOverride(true);
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this._frontend.canClearSelection = false;
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this._frontend.popup.on('customOuterCssChanged', this._onCustomOuterCssChanged.bind(this));
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// Update search
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this._updateSearch();
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}
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// Private
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async _apiOptionsGet(...args) {
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const options = await this._apiOptionsGetOld(...args);
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options.general.enable = true;
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options.general.debugInfo = false;
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options.general.popupWidth = 400;
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options.general.popupHeight = 250;
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options.general.popupHorizontalOffset = 0;
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options.general.popupVerticalOffset = 10;
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options.general.popupHorizontalOffset2 = 10;
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options.general.popupVerticalOffset2 = 0;
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options.general.popupHorizontalTextPosition = 'below';
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options.general.popupVerticalTextPosition = 'before';
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options.scanning.selectText = false;
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return options;
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}
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_onCustomOuterCssChanged({node, inShadow}) {
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if (node === null || inShadow) { return; }
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const node2 = document.querySelector('#popup-outer-css');
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if (node2 === null) { return; }
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// This simulates the stylesheet priorities when injecting using the web extension API.
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node2.parentNode.insertBefore(node, node2);
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}
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_onMessage(e) {
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if (e.origin !== this._targetOrigin) { return; }
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const {action, params} = e.data;
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const handler = this._windowMessageHandlers.get(action);
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if (typeof handler !== 'function') { return; }
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handler(params);
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}
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_onThemeDarkCheckboxChanged(e) {
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document.documentElement.classList.toggle('dark', e.target.checked);
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if (this._themeChangeTimeout !== null) {
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clearTimeout(this._themeChangeTimeout);
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}
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this._themeChangeTimeout = setTimeout(() => {
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this._themeChangeTimeout = null;
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const popup = this._frontend.popup;
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if (popup === null) { return; }
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popup.updateTheme();
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}, 300);
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}
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_onExampleTextClick() {
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if (this._exampleTextInput === null) { return; }
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const visible = this._exampleTextInput.hidden;
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this._exampleTextInput.hidden = !visible;
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if (!visible) { return; }
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this._exampleTextInput.focus();
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this._exampleTextInput.select();
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}
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_onExampleTextInputBlur() {
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if (this._exampleTextInput === null) { return; }
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this._exampleTextInput.hidden = true;
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}
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_onExampleTextInputInput(e) {
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this._setText(e.currentTarget.value);
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}
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_onSetText({text}) {
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this._setText(text, true);
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}
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_setText(text, setInput) {
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if (setInput && this._exampleTextInput !== null) {
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this._exampleTextInput.value = text;
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}
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if (this._exampleText === null) { return; }
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this._exampleText.textContent = text;
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if (this._frontend === null) { return; }
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this._updateSearch();
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}
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_setInfoVisible(visible) {
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const node = document.querySelector('.placeholder-info');
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if (node === null) { return; }
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node.classList.toggle('placeholder-info-visible', visible);
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}
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_setCustomCss({css}) {
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if (this._frontend === null) { return; }
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const popup = this._frontend.popup;
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if (popup === null) { return; }
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popup.setCustomCss(css);
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}
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_setCustomOuterCss({css}) {
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if (this._frontend === null) { return; }
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const popup = this._frontend.popup;
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if (popup === null) { return; }
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popup.setCustomOuterCss(css, false);
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}
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async _updateOptionsContext({optionsContext}) {
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this._optionsContext = optionsContext;
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if (this._frontend === null) { return; }
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this._frontend.setOptionsContextOverride(optionsContext);
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await this._frontend.updateOptions();
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await this._updateSearch();
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}
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async _updateSearch() {
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if (this._exampleText === null) { return; }
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const textNode = this._exampleText.firstChild;
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if (textNode === null) { return; }
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const range = document.createRange();
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range.selectNodeContents(textNode);
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const source = new TextSourceRange(range, range.toString(), null, null);
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try {
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await this._frontend.setTextSource(source);
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} finally {
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source.cleanup();
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}
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this._textSource = source;
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await this._frontend.showContentCompleted();
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const popup = this._frontend.popup;
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if (popup !== null && popup.isVisibleSync()) {
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this._popupShown = true;
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}
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this._setInfoVisible(!this._popupShown);
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}
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}
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