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diff --git a/ext/bg/js/settings2/settings-display-controller.js b/ext/bg/js/settings2/settings-display-controller.js
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--- a/ext/bg/js/settings2/settings-display-controller.js
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-/*
- * Copyright (C) 2020-2021 Yomichan Authors
- *
- * 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
- * PopupMenu
- * SelectorObserver
- */
-
-class SettingsDisplayController {
- constructor(settingsController, modalController) {
- this._settingsController = settingsController;
- this._modalController = modalController;
- this._contentNode = null;
- this._menuContainer = null;
- this._onMoreToggleClickBind = null;
- this._onMenuButtonClickBind = null;
- }
-
- prepare() {
- this._contentNode = document.querySelector('.content');
- this._menuContainer = document.querySelector('#popup-menus');
-
- const onFabButtonClick = this._onFabButtonClick.bind(this);
- for (const fabButton of document.querySelectorAll('.fab-button')) {
- fabButton.addEventListener('click', onFabButtonClick, false);
- }
-
- const onModalAction = this._onModalAction.bind(this);
- for (const node of document.querySelectorAll('[data-modal-action]')) {
- node.addEventListener('click', onModalAction, false);
- }
-
- const onSelectOnClickElementClick = this._onSelectOnClickElementClick.bind(this);
- for (const node of document.querySelectorAll('[data-select-on-click]')) {
- node.addEventListener('click', onSelectOnClickElementClick, false);
- }
-
- const onInputTabActionKeyDown = this._onInputTabActionKeyDown.bind(this);
- for (const node of document.querySelectorAll('[data-tab-action]')) {
- node.addEventListener('keydown', onInputTabActionKeyDown, false);
- }
-
- const onSpecialUrlLinkClick = this._onSpecialUrlLinkClick.bind(this);
- const onSpecialUrlLinkMouseDown = this._onSpecialUrlLinkMouseDown.bind(this);
- for (const node of document.querySelectorAll('[data-special-url]')) {
- node.addEventListener('click', onSpecialUrlLinkClick, false);
- node.addEventListener('auxclick', onSpecialUrlLinkClick, false);
- node.addEventListener('mousedown', onSpecialUrlLinkMouseDown, false);
- }
-
- for (const node of document.querySelectorAll('.defer-load-iframe')) {
- this._setupDeferLoadIframe(node);
- }
-
- this._onMoreToggleClickBind = this._onMoreToggleClick.bind(this);
- const moreSelectorObserver = new SelectorObserver({
- selector: '.more-toggle',
- onAdded: this._onMoreSetup.bind(this),
- onRemoved: this._onMoreCleanup.bind(this)
- });
- moreSelectorObserver.observe(document.documentElement, false);
-
- this._onMenuButtonClickBind = this._onMenuButtonClick.bind(this);
- const menuSelectorObserver = new SelectorObserver({
- selector: '[data-menu]',
- onAdded: this._onMenuSetup.bind(this),
- onRemoved: this._onMenuCleanup.bind(this)
- });
- menuSelectorObserver.observe(document.documentElement, false);
-
- window.addEventListener('keydown', this._onKeyDown.bind(this), false);
- window.addEventListener('popstate', this._onPopState.bind(this), false);
- this._updateScrollTarget();
- }
-
- // Private
-
- _onMoreSetup(element) {
- element.addEventListener('click', this._onMoreToggleClickBind, false);
- return null;
- }
-
- _onMoreCleanup(element) {
- element.removeEventListener('click', this._onMoreToggleClickBind, false);
- }
-
- _onMenuSetup(element) {
- element.addEventListener('click', this._onMenuButtonClickBind, false);
- return null;
- }
-
- _onMenuCleanup(element) {
- element.removeEventListener('click', this._onMenuButtonClickBind, false);
- }
-
- _onMenuButtonClick(e) {
- const element = e.currentTarget;
- const {menu} = element.dataset;
- this._showMenu(element, menu);
- }
-
- _onFabButtonClick(e) {
- const action = e.currentTarget.dataset.action;
- switch (action) {
- case 'toggle-sidebar':
- document.body.classList.toggle('sidebar-visible');
- break;
- case 'toggle-preview-sidebar':
- document.body.classList.toggle('preview-sidebar-visible');
- break;
- }
- }
-
- _onMoreToggleClick(e) {
- const container = this._getMoreContainer(e.currentTarget);
- if (container === null) { return; }
-
- const more = container.querySelector('.more');
- if (more === null) { return; }
-
- const moreVisible = more.hidden;
- more.hidden = !moreVisible;
- for (const moreToggle of container.querySelectorAll('.more-toggle')) {
- const container2 = this._getMoreContainer(moreToggle);
- if (container2 === null) { continue; }
-
- const more2 = container2.querySelector('.more');
- if (more2 === null || more2 !== more) { continue; }
-
- moreToggle.dataset.expanded = `${moreVisible}`;
- }
-
- e.preventDefault();
- return false;
- }
-
- _onPopState() {
- this._updateScrollTarget();
- }
-
- _onKeyDown(e) {
- switch (e.code) {
- case 'Escape':
- if (!this._isElementAnInput(document.activeElement)) {
- this._closeTopMenuOrModal();
- e.preventDefault();
- }
- break;
- }
- }
-
- _onModalAction(e) {
- const node = e.currentTarget;
- const {modalAction} = node.dataset;
- if (typeof modalAction !== 'string') { return; }
-
- let [action, target] = modalAction.split(',');
- if (typeof target === 'undefined') {
- const currentModal = node.closest('.modal');
- if (currentModal === null) { return; }
- target = currentModal;
- }
-
- const modal = this._modalController.getModal(target);
- if (modal === null) { return; }
-
- switch (action) {
- case 'show':
- modal.setVisible(true);
- break;
- case 'hide':
- modal.setVisible(false);
- break;
- case 'toggle':
- modal.setVisible(!modal.isVisible());
- break;
- }
-
- e.preventDefault();
- }
-
- _onSelectOnClickElementClick(e) {
- if (e.button !== 0) { return; }
-
- const node = e.currentTarget;
- const range = document.createRange();
- range.selectNode(node);
-
- const selection = window.getSelection();
- selection.removeAllRanges();
- selection.addRange(range);
-
- e.preventDefault();
- e.stopPropagation();
- return false;
- }
-
- _onInputTabActionKeyDown(e) {
- if (e.key !== 'Tab' || e.ctrlKey) { return; }
-
- const node = e.currentTarget;
- const {tabAction} = node.dataset;
- if (typeof tabAction !== 'string') { return; }
-
- const args = tabAction.split(',');
- switch (args[0]) {
- case 'ignore':
- e.preventDefault();
- break;
- case 'indent':
- e.preventDefault();
- this._indentInput(e, node, args);
- break;
- }
- }
-
- _onSpecialUrlLinkClick(e) {
- switch (e.button) {
- case 0:
- case 1:
- e.preventDefault();
- this._createTab(e.currentTarget.dataset.specialUrl, true);
- break;
- }
- }
-
- _onSpecialUrlLinkMouseDown(e) {
- switch (e.button) {
- case 0:
- case 1:
- e.preventDefault();
- break;
- }
- }
-
- async _createTab(url, useOpener) {
- let openerTabId;
- if (useOpener) {
- try {
- const tab = await new Promise((resolve, reject) => {
- chrome.tabs.getCurrent((result) => {
- const e = chrome.runtime.lastError;
- if (e) {
- reject(new Error(e.message));
- } else {
- resolve(result);
- }
- });
- });
- openerTabId = tab.id;
- } catch (e) {
- // NOP
- }
- }
-
- return await new Promise((resolve, reject) => {
- chrome.tabs.create({url, openerTabId}, (tab2) => {
- const e = chrome.runtime.lastError;
- if (e) {
- reject(new Error(e.message));
- } else {
- resolve(tab2);
- }
- });
- });
- }
-
- _updateScrollTarget() {
- const hash = window.location.hash;
- if (!hash.startsWith('#!')) { return; }
-
- const content = this._contentNode;
- const target = document.getElementById(hash.substring(2));
- if (content === null || target === null) { return; }
-
- const rect1 = content.getBoundingClientRect();
- const rect2 = target.getBoundingClientRect();
- content.scrollTop += rect2.top - rect1.top;
- }
-
- _getMoreContainer(link) {
- const v = link.dataset.parentDistance;
- const distance = v ? parseInt(v, 10) : 1;
- if (Number.isNaN(distance)) { return null; }
-
- for (let i = 0; i < distance; ++i) {
- link = link.parentNode;
- if (link === null) { break; }
- }
- return link;
- }
-
- _closeTopMenuOrModal() {
- for (const popupMenu of PopupMenu.openMenus) {
- popupMenu.close();
- return;
- }
-
- const modal = this._modalController.getTopVisibleModal();
- if (modal !== null) {
- modal.setVisible(false);
- }
- }
-
- _showMenu(element, menuName) {
- const menu = this._settingsController.instantiateTemplate(menuName);
- if (menu === null) { return; }
-
- this._menuContainer.appendChild(menu);
-
- const popupMenu = new PopupMenu(element, menu);
- popupMenu.prepare();
- }
-
- _indentInput(e, node, args) {
- let indent = '\t';
- if (args.length > 1) {
- const count = parseInt(args[1], 10);
- indent = (Number.isFinite(count) && count >= 0 ? ' '.repeat(count) : args[1]);
- }
-
- const {selectionStart: start, selectionEnd: end, value} = node;
- const lineStart = value.substring(0, start).lastIndexOf('\n') + 1;
- const lineWhitespace = /^[ \t]*/.exec(value.substring(lineStart))[0];
-
- if (e.shiftKey) {
- const whitespaceLength = Math.max(0, Math.floor((lineWhitespace.length - 1) / 4) * 4);
- const selectionStartNew = lineStart + whitespaceLength;
- const selectionEndNew = lineStart + lineWhitespace.length;
- const removeCount = selectionEndNew - selectionStartNew;
- if (removeCount > 0) {
- node.selectionStart = selectionStartNew;
- node.selectionEnd = selectionEndNew;
- document.execCommand('delete', false);
- node.selectionStart = Math.max(lineStart, start - removeCount);
- node.selectionEnd = Math.max(lineStart, end - removeCount);
- }
- } else {
- if (indent.length > 0) {
- const indentLength = (Math.ceil((start - lineStart + 1) / indent.length) * indent.length - (start - lineStart));
- document.execCommand('insertText', false, indent.substring(0, indentLength));
- }
- }
- }
-
- _isElementAnInput(element) {
- const type = element !== null ? element.nodeName.toUpperCase() : null;
- switch (type) {
- case 'INPUT':
- case 'TEXTAREA':
- case 'SELECT':
- return true;
- default:
- return false;
- }
- }
-
- _setupDeferLoadIframe(element) {
- const parent = this._getMoreContainer(element);
- if (parent === null) { return; }
-
- let mutationObserver = null;
- const callback = () => {
- if (!this._isElementVisible(element)) { return false; }
-
- const src = element.dataset.src;
- delete element.dataset.src;
- element.src = src;
-
- if (mutationObserver === null) { return true; }
-
- mutationObserver.disconnect();
- mutationObserver = null;
- return true;
- };
-
- if (callback()) { return; }
-
- mutationObserver = new MutationObserver(callback);
- mutationObserver.observe(parent, {attributes: true});
- }
-
- _isElementVisible(element) {
- return (element.offsetParent !== null);
- }
-}