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197
vendor/yomitan/js/display/element-overflow-controller.js
vendored
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197
vendor/yomitan/js/display/element-overflow-controller.js
vendored
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/*
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* Copyright (C) 2023-2025 Yomitan Authors
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* Copyright (C) 2021-2022 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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import {EventListenerCollection} from '../core/event-listener-collection.js';
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export class ElementOverflowController {
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/**
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* @param {import('./display.js').Display} display
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*/
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constructor(display) {
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/** @type {import('./display.js').Display} */
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this._display = display;
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/** @type {Element[]} */
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this._elements = [];
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/** @type {?(number|import('core').Timeout)} */
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this._checkTimer = null;
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/** @type {EventListenerCollection} */
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this._eventListeners = new EventListenerCollection();
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/** @type {EventListenerCollection} */
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this._windowEventListeners = new EventListenerCollection();
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/** @type {Map<string, {collapsed: boolean, force: boolean}>} */
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this._dictionaries = new Map();
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/** @type {() => void} */
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this._updateBind = this._update.bind(this);
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/** @type {() => void} */
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this._onWindowResizeBind = this._onWindowResize.bind(this);
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/** @type {(event: MouseEvent) => void} */
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this._onToggleButtonClickBind = this._onToggleButtonClick.bind(this);
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}
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/**
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* @param {import('settings').ProfileOptions} options
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*/
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setOptions(options) {
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this._dictionaries.clear();
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for (const {name, definitionsCollapsible} of options.dictionaries) {
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let collapsible = false;
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let collapsed = false;
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let force = false;
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switch (definitionsCollapsible) {
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case 'expanded':
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collapsible = true;
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break;
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case 'collapsed':
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collapsible = true;
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collapsed = true;
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break;
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case 'force-expanded':
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collapsible = true;
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force = true;
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break;
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case 'force-collapsed':
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collapsible = true;
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collapsed = true;
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force = true;
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break;
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}
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if (!collapsible) { continue; }
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this._dictionaries.set(name, {collapsed, force});
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}
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}
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/**
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* @param {Element} entry
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*/
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addElements(entry) {
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if (this._dictionaries.size === 0) { return; }
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/** @type {Element[]} */
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const elements = [
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...entry.querySelectorAll('.definition-item-inner'),
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...entry.querySelectorAll('.kanji-glyph-data'),
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];
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for (const element of elements) {
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const {parentNode} = element;
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if (parentNode === null) { continue; }
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const {dictionary} = /** @type {HTMLElement} */ (parentNode).dataset;
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if (typeof dictionary === 'undefined') { continue; }
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const dictionaryInfo = this._dictionaries.get(dictionary);
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if (typeof dictionaryInfo === 'undefined') { continue; }
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if (dictionaryInfo.force) {
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element.classList.add('collapsible', 'collapsible-forced');
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} else {
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this._updateElement(element);
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this._elements.push(element);
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}
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if (dictionaryInfo.collapsed) {
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element.classList.add('collapsed');
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}
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const button = element.querySelector('.expansion-button');
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if (button !== null) {
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this._eventListeners.addEventListener(button, 'click', this._onToggleButtonClickBind, false);
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}
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}
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if (this._elements.length > 0 && this._windowEventListeners.size === 0) {
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this._windowEventListeners.addEventListener(window, 'resize', this._onWindowResizeBind, false);
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}
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}
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/** */
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clearElements() {
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this._elements.length = 0;
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this._eventListeners.removeAllEventListeners();
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this._windowEventListeners.removeAllEventListeners();
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}
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// Private
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/** */
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_onWindowResize() {
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if (this._checkTimer !== null) {
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this._cancelIdleCallback(this._checkTimer);
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}
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this._checkTimer = this._requestIdleCallback(this._updateBind, 100);
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}
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/**
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* @param {MouseEvent} e
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*/
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_onToggleButtonClick(e) {
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const element = /** @type {Element} */ (e.currentTarget);
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/** @type {(Element | null)[]} */
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const collapsedElements = [
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element.closest('.definition-item-inner'),
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element.closest('.kanji-glyph-data'),
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];
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for (const collapsedElement of collapsedElements) {
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if (collapsedElement === null) { continue; }
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const collapsed = collapsedElement.classList.toggle('collapsed');
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if (collapsed) {
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this._display.scrollUpToElementTop(element);
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}
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}
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}
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/** */
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_update() {
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for (const element of this._elements) {
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this._updateElement(element);
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}
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}
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/**
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* @param {Element} element
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*/
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_updateElement(element) {
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const {classList} = element;
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classList.add('collapse-test');
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const collapsible = element.scrollHeight > element.clientHeight || element.scrollWidth > element.clientWidth;
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classList.toggle('collapsible', collapsible);
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classList.remove('collapse-test');
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}
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/**
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* @param {() => void} callback
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* @param {number} timeout
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* @returns {number|import('core').Timeout}
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*/
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_requestIdleCallback(callback, timeout) {
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return (
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typeof requestIdleCallback === 'function' ?
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requestIdleCallback(callback, {timeout}) :
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setTimeout(callback, timeout)
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);
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}
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/**
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* @param {number|import('core').Timeout} handle
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*/
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_cancelIdleCallback(handle) {
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if (typeof cancelIdleCallback === 'function') {
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cancelIdleCallback(/** @type {number} */ (handle));
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} else {
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clearTimeout(handle);
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}
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}
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}
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