182 lines
5.9 KiB
JavaScript
182 lines
5.9 KiB
JavaScript
/*
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* Copyright (C) 2019-2020 Alex Yatskov <alex@foosoft.net>
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* Author: Alex Yatskov <alex@foosoft.net>
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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 apiOptionsGet, Popup, PopupProxyHost, Frontend, TextSourceRange*/
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class SettingsPopupPreview {
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constructor() {
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this.frontend = null;
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this.apiOptionsGetOld = apiOptionsGet;
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this.popup = null;
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this.popupSetCustomOuterCssOld = 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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}
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static create() {
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const instance = new SettingsPopupPreview();
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instance.prepare();
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return instance;
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}
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async prepare() {
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// Setup events
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window.addEventListener('message', (e) => this.onMessage(e), false);
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const themeDarkCheckbox = document.querySelector('#theme-dark-checkbox');
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if (themeDarkCheckbox !== null) {
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themeDarkCheckbox.addEventListener('change', () => this.onThemeDarkCheckboxChanged(themeDarkCheckbox), false);
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}
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// Overwrite API functions
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window.apiOptionsGet = (...args) => this.apiOptionsGet(...args);
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// Overwrite frontend
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const popupHost = new PopupProxyHost();
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await popupHost.prepare();
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this.popup = popupHost.getOrCreatePopup();
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this.popup.setChildrenSupported(false);
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this.popupSetCustomOuterCssOld = this.popup.setCustomOuterCss;
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this.popup.setCustomOuterCss = (...args) => this.popupSetCustomOuterCss(...args);
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this.frontend = new Frontend(this.popup);
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this.frontend.setEnabled = function () {};
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this.frontend.searchClear = function () {};
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await this.frontend.prepare();
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// Update search
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this.updateSearch();
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}
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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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async popupSetCustomOuterCss(...args) {
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// This simulates the stylesheet priorities when injecting using the web extension API.
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const result = await this.popupSetCustomOuterCssOld.call(this.popup, ...args);
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const outerStylesheet = Popup.outerStylesheet;
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const node = document.querySelector('#client-css');
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if (node !== null && outerStylesheet !== null) {
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node.parentNode.insertBefore(outerStylesheet, node);
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}
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return result;
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}
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onMessage(e) {
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const {action, params} = e.data;
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const handler = SettingsPopupPreview._messageHandlers.get(action);
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if (typeof handler !== 'function') { return; }
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handler(this, params);
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}
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onThemeDarkCheckboxChanged(node) {
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document.documentElement.classList.toggle('dark', node.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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this.frontend.popup.updateTheme();
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}, 300);
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}
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setText(text) {
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const exampleText = document.querySelector('#example-text');
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if (exampleText === null) { return; }
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exampleText.textContent = text;
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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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this.frontend.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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this.frontend.popup.setCustomOuterCss(css, false);
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}
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async updateSearch() {
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const exampleText = document.querySelector('#example-text');
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if (exampleText === null) { return; }
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const textNode = exampleText.firstChild;
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if (textNode === null) { return; }
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const range = document.createRange();
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range.selectNode(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.onSearchSource(source, 'script');
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this.frontend.setCurrentTextSource(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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if (this.frontend.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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SettingsPopupPreview._messageHandlers = new Map([
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['setText', (self, {text}) => self.setText(text)],
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['setCustomCss', (self, {css}) => self.setCustomCss(css)],
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['setCustomOuterCss', (self, {css}) => self.setCustomOuterCss(css)]
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]);
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SettingsPopupPreview.instance = SettingsPopupPreview.create();
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