708 lines
22 KiB
JavaScript
708 lines
22 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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* DocumentUtil
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* FrameClient
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* dynamicLoader
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*/
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class Popup extends EventDispatcher {
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constructor({
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id,
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depth,
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frameId,
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childrenSupported
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}) {
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super();
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this._id = id;
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this._depth = depth;
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this._frameId = frameId;
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this._childrenSupported = childrenSupported;
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this._parent = null;
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this._child = null;
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this._injectPromise = null;
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this._injectPromiseComplete = false;
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this._visible = new DynamicProperty(false);
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this._options = null;
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this._optionsContext = null;
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this._contentScale = 1.0;
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this._targetOrigin = chrome.runtime.getURL('/').replace(/\/$/, '');
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this._frameSizeContentScale = null;
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this._frameClient = null;
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this._frame = document.createElement('iframe');
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this._frame.className = 'yomichan-popup';
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this._frame.style.width = '0';
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this._frame.style.height = '0';
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this._container = this._frame;
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this._shadow = null;
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this._fullscreenEventListeners = new EventListenerCollection();
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}
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// Public properties
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get id() {
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return this._id;
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}
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get parent() {
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return this._parent;
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}
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set parent(value) {
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this._parent = value;
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}
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get child() {
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return this._child;
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}
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set child(value) {
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this._child = value;
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}
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get depth() {
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return this._depth;
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}
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get frameContentWindow() {
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return this._frame.contentWindow;
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}
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get container() {
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return this._container;
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}
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get frameId() {
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return this._frameId;
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}
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// Public functions
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prepare() {
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this._frame.addEventListener('mouseover', this._onFrameMouseOver.bind(this));
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this._frame.addEventListener('mouseout', this._onFrameMouseOut.bind(this));
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this._frame.addEventListener('mousedown', (e) => e.stopPropagation());
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this._frame.addEventListener('scroll', (e) => e.stopPropagation());
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this._frame.addEventListener('load', this._onFrameLoad.bind(this));
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this._visible.on('change', this._onVisibleChange.bind(this));
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yomichan.on('extensionUnloaded', this._onExtensionUnloaded.bind(this));
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this._onVisibleChange({value: this.isVisibleSync()});
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}
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async setOptionsContext(optionsContext) {
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await this._setOptionsContext(optionsContext);
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await this._invokeSafe('setOptionsContext', {optionsContext});
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}
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hide(changeFocus) {
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if (!this.isVisibleSync()) {
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return;
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}
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this._setVisible(false);
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if (this._child !== null) {
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this._child.hide(false);
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}
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if (changeFocus) {
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this._focusParent();
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}
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}
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async isVisible() {
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return this.isVisibleSync();
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}
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async setVisibleOverride(value, priority) {
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return this._visible.setOverride(value, priority);
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}
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async clearVisibleOverride(token) {
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return this._visible.clearOverride(token);
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}
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async containsPoint(x, y) {
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for (let popup = this; popup !== null && popup.isVisibleSync(); popup = popup.child) {
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const rect = popup.getFrameRect();
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if (x >= rect.left && y >= rect.top && x < rect.right && y < rect.bottom) {
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return true;
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}
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}
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return false;
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}
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async showContent(details, displayDetails) {
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if (this._options === null) { throw new Error('Options not assigned'); }
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const {optionsContext, elementRect, writingMode} = details;
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if (optionsContext !== null) {
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await this._setOptionsContextIfDifferent(optionsContext);
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}
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if (typeof elementRect !== 'undefined' && typeof writingMode !== 'undefined') {
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await this._show(elementRect, writingMode);
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}
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if (displayDetails !== null) {
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this._invokeSafe('setContent', {details: displayDetails});
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}
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}
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setCustomCss(css) {
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this._invokeSafe('setCustomCss', {css});
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}
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clearAutoPlayTimer() {
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this._invokeSafe('clearAutoPlayTimer');
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}
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setContentScale(scale) {
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this._contentScale = scale;
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this._frame.style.fontSize = `${scale}px`;
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this._invokeSafe('setContentScale', {scale});
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}
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isVisibleSync() {
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return this._visible.value;
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}
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updateTheme() {
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const {popupTheme, popupOuterTheme} = this._options.general;
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this._frame.dataset.theme = popupTheme;
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this._frame.dataset.outerTheme = popupOuterTheme;
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this._frame.dataset.siteColor = this._getSiteColor();
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}
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async setCustomOuterCss(css, useWebExtensionApi) {
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let parentNode = null;
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const inShadow = (this._shadow !== null);
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if (inShadow) {
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useWebExtensionApi = false;
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parentNode = this._shadow;
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}
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const node = await dynamicLoader.loadStyle('yomichan-popup-outer-user-stylesheet', 'code', css, useWebExtensionApi, parentNode);
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this.trigger('customOuterCssChanged', {node, useWebExtensionApi, inShadow});
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}
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getFrameRect() {
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return this._frame.getBoundingClientRect();
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}
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async getFrameSize() {
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const rect = this._frame.getBoundingClientRect();
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return {width: rect.width, height: rect.height, valid: true};
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}
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async setFrameSize(width, height) {
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this._setFrameSize(width, height);
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return true;
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}
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// Private functions
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_onFrameMouseOver() {
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this.trigger('framePointerOver', {});
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}
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_onFrameMouseOut() {
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this.trigger('framePointerOut', {});
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}
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_inject() {
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let injectPromise = this._injectPromise;
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if (injectPromise === null) {
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injectPromise = this._injectInner1();
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this._injectPromise = injectPromise;
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injectPromise.then(
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() => {
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if (injectPromise !== this._injectPromise) { return; }
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this._injectPromiseComplete = true;
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},
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() => {}
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);
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}
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return injectPromise;
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}
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async _injectInner1() {
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try {
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await this._injectInner2();
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return true;
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} catch (e) {
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this._resetFrame();
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if (e.source === this) { return false; } // Passive error
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throw e;
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}
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}
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async _injectInner2() {
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if (this._options === null) {
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throw new Error('Options not initialized');
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}
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const {useSecurePopupFrameUrl, usePopupShadowDom} = this._options.general;
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await this._setUpContainer(usePopupShadowDom);
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const setupFrame = (frame) => {
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frame.removeAttribute('src');
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frame.removeAttribute('srcdoc');
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this._observeFullscreen(true);
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this._onFullscreenChanged();
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const {contentDocument} = frame;
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if (contentDocument === null) {
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// This can occur when running inside a sandboxed frame without "allow-same-origin"
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const error = new Error('Popup not supoprted in this context');
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error.source = this; // Used to detect a passive error which should be ignored
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throw error;
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}
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const url = chrome.runtime.getURL('/popup.html');
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if (useSecurePopupFrameUrl) {
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contentDocument.location.href = url;
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} else {
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frame.setAttribute('src', url);
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}
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};
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const frameClient = new FrameClient();
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this._frameClient = frameClient;
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await frameClient.connect(this._frame, this._targetOrigin, this._frameId, setupFrame);
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// Configure
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await this._invokeSafe('configure', {
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depth: this._depth,
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parentPopupId: this._id,
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parentFrameId: this._frameId,
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childrenSupported: this._childrenSupported,
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scale: this._contentScale,
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optionsContext: this._optionsContext
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});
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}
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_onFrameLoad() {
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if (!this._injectPromiseComplete) { return; }
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this._resetFrame();
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}
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_resetFrame() {
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const parent = this._container.parentNode;
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if (parent !== null) {
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parent.removeChild(this._container);
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}
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this._frame.removeAttribute('src');
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this._frame.removeAttribute('srcdoc');
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this._frameClient = null;
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this._injectPromise = null;
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this._injectPromiseComplete = false;
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}
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async _setUpContainer(usePopupShadowDom) {
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if (usePopupShadowDom && typeof this._frame.attachShadow === 'function') {
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const container = document.createElement('div');
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container.style.setProperty('all', 'initial', 'important');
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const shadow = container.attachShadow({mode: 'closed', delegatesFocus: true});
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shadow.appendChild(this._frame);
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this._container = container;
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this._shadow = shadow;
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} else {
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const frameParentNode = this._frame.parentNode;
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if (frameParentNode !== null) {
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frameParentNode.removeChild(this._frame);
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}
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this._container = this._frame;
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this._shadow = null;
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}
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await this._injectStyles();
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}
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async _injectStyles() {
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try {
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await this._injectPopupOuterStylesheet();
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} catch (e) {
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// NOP
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}
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try {
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await this.setCustomOuterCss(this._options.general.customPopupOuterCss, true);
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} catch (e) {
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// NOP
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}
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}
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async _injectPopupOuterStylesheet() {
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let fileType = 'file';
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let useWebExtensionApi = true;
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let parentNode = null;
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if (this._shadow !== null) {
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fileType = 'file-content';
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useWebExtensionApi = false;
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parentNode = this._shadow;
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}
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await dynamicLoader.loadStyle('yomichan-popup-outer-stylesheet', fileType, '/css/popup-outer.css', useWebExtensionApi, parentNode);
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}
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_observeFullscreen(observe) {
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if (!observe) {
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this._fullscreenEventListeners.removeAllEventListeners();
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return;
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}
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if (this._fullscreenEventListeners.size > 0) {
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// Already observing
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return;
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}
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DocumentUtil.addFullscreenChangeEventListener(this._onFullscreenChanged.bind(this), this._fullscreenEventListeners);
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}
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_onFullscreenChanged() {
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const parent = this._getFrameParentElement();
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if (parent !== null && this._container.parentNode !== parent) {
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parent.appendChild(this._container);
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}
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}
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async _show(elementRect, writingMode) {
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const injected = await this._inject();
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if (!injected) { return; }
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const optionsGeneral = this._options.general;
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const {popupDisplayMode} = optionsGeneral;
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const frame = this._frame;
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const frameRect = frame.getBoundingClientRect();
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const viewport = this._getViewport(optionsGeneral.popupScaleRelativeToVisualViewport);
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const scale = this._contentScale;
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const scaleRatio = this._frameSizeContentScale === null ? 1.0 : scale / this._frameSizeContentScale;
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this._frameSizeContentScale = scale;
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const getPositionArgs = [
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elementRect,
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Math.max(frameRect.width * scaleRatio, optionsGeneral.popupWidth * scale),
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Math.max(frameRect.height * scaleRatio, optionsGeneral.popupHeight * scale),
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viewport,
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scale,
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optionsGeneral,
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writingMode
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];
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let [x, y, width, height, below] = (
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writingMode === 'horizontal-tb' || optionsGeneral.popupVerticalTextPosition === 'default' ?
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this._getPositionForHorizontalText(...getPositionArgs) :
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this._getPositionForVerticalText(...getPositionArgs)
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);
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frame.dataset.popupDisplayMode = popupDisplayMode;
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frame.dataset.below = `${below}`;
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if (popupDisplayMode === 'full-width') {
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x = viewport.left;
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y = below ? viewport.bottom - height : viewport.top;
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width = viewport.right - viewport.left;
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}
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frame.style.left = `${x}px`;
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frame.style.top = `${y}px`;
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this._setFrameSize(width, height);
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this._setVisible(true);
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if (this._child !== null) {
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this._child.hide(true);
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}
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}
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_setFrameSize(width, height) {
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const {style} = this._frame;
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style.width = `${width}px`;
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style.height = `${height}px`;
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}
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_setVisible(visible) {
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this._visible.defaultValue = visible;
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}
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_onVisibleChange({value}) {
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this._frame.style.setProperty('visibility', value ? 'visible' : 'hidden', 'important');
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}
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_focusParent() {
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if (this._parent !== null) {
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// Chrome doesn't like focusing iframe without contentWindow.
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const contentWindow = this._parent.frameContentWindow;
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if (contentWindow !== null) {
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contentWindow.focus();
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}
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} else {
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// Firefox doesn't like focusing window without first blurring the iframe.
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// this._frame.contentWindow.blur() doesn't work on Firefox for some reason.
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this._frame.blur();
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// This is needed for Chrome.
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window.focus();
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}
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}
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_getSiteColor() {
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const color = [255, 255, 255];
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const {documentElement, body} = document;
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if (documentElement !== null) {
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this._addColor(color, window.getComputedStyle(documentElement).backgroundColor);
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}
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if (body !== null) {
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this._addColor(color, window.getComputedStyle(body).backgroundColor);
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}
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const dark = (color[0] < 128 && color[1] < 128 && color[2] < 128);
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return dark ? 'dark' : 'light';
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}
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async _invoke(action, params={}) {
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const contentWindow = this._frame.contentWindow;
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if (this._frameClient === null || !this._frameClient.isConnected() || contentWindow === null) { return; }
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const message = this._frameClient.createMessage({action, params});
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return await yomichan.crossFrame.invoke(this._frameClient.frameId, 'popupMessage', message);
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}
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async _invokeSafe(action, params={}, defaultReturnValue) {
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try {
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return await this._invoke(action, params);
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} catch (e) {
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if (!yomichan.isExtensionUnloaded) { throw e; }
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return defaultReturnValue;
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}
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}
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_invokeWindow(action, params={}) {
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const contentWindow = this._frame.contentWindow;
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if (this._frameClient === null || !this._frameClient.isConnected() || contentWindow === null) { return; }
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const message = this._frameClient.createMessage({action, params});
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contentWindow.postMessage(message, this._targetOrigin);
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}
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_onExtensionUnloaded() {
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this._invokeWindow('extensionUnloaded');
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}
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_getFrameParentElement() {
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let defaultParent = document.body;
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if (defaultParent !== null && defaultParent.tagName.toLowerCase() === 'frameset') {
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defaultParent = document.documentElement;
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}
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const fullscreenElement = DocumentUtil.getFullscreenElement();
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if (
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fullscreenElement === null ||
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fullscreenElement.shadowRoot ||
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fullscreenElement.openOrClosedShadowRoot // Available to Firefox 63+ for WebExtensions
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) {
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return defaultParent;
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}
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switch (fullscreenElement.nodeName.toUpperCase()) {
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case 'IFRAME':
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case 'FRAME':
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return defaultParent;
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}
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return fullscreenElement;
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}
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_getPositionForHorizontalText(elementRect, width, height, viewport, offsetScale, optionsGeneral) {
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const preferBelow = (optionsGeneral.popupHorizontalTextPosition === 'below');
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const horizontalOffset = optionsGeneral.popupHorizontalOffset * offsetScale;
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const verticalOffset = optionsGeneral.popupVerticalOffset * offsetScale;
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const [x, w] = this._getConstrainedPosition(
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elementRect.right - horizontalOffset,
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elementRect.left + horizontalOffset,
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width,
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viewport.left,
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viewport.right,
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true
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);
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const [y, h, below] = this._getConstrainedPositionBinary(
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elementRect.top - verticalOffset,
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elementRect.bottom + verticalOffset,
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height,
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viewport.top,
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viewport.bottom,
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preferBelow
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);
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return [x, y, w, h, below];
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}
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_getPositionForVerticalText(elementRect, width, height, viewport, offsetScale, optionsGeneral, writingMode) {
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const preferRight = this._isVerticalTextPopupOnRight(optionsGeneral.popupVerticalTextPosition, writingMode);
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const horizontalOffset = optionsGeneral.popupHorizontalOffset2 * offsetScale;
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const verticalOffset = optionsGeneral.popupVerticalOffset2 * offsetScale;
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const [x, w] = this._getConstrainedPositionBinary(
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elementRect.left - horizontalOffset,
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elementRect.right + horizontalOffset,
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width,
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viewport.left,
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viewport.right,
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preferRight
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);
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const [y, h, below] = this._getConstrainedPosition(
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elementRect.bottom - verticalOffset,
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elementRect.top + verticalOffset,
|
|
height,
|
|
viewport.top,
|
|
viewport.bottom,
|
|
true
|
|
);
|
|
return [x, y, w, h, below];
|
|
}
|
|
|
|
_isVerticalTextPopupOnRight(positionPreference, writingMode) {
|
|
switch (positionPreference) {
|
|
case 'before':
|
|
return !this._isWritingModeLeftToRight(writingMode);
|
|
case 'after':
|
|
return this._isWritingModeLeftToRight(writingMode);
|
|
case 'left':
|
|
return false;
|
|
case 'right':
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
_isWritingModeLeftToRight(writingMode) {
|
|
switch (writingMode) {
|
|
case 'vertical-lr':
|
|
case 'sideways-lr':
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
_getConstrainedPosition(positionBefore, positionAfter, size, minLimit, maxLimit, after) {
|
|
size = Math.min(size, maxLimit - minLimit);
|
|
|
|
let position;
|
|
if (after) {
|
|
position = Math.max(minLimit, positionAfter);
|
|
position = position - Math.max(0, (position + size) - maxLimit);
|
|
} else {
|
|
position = Math.min(maxLimit, positionBefore) - size;
|
|
position = position + Math.max(0, minLimit - position);
|
|
}
|
|
|
|
return [position, size, after];
|
|
}
|
|
|
|
_getConstrainedPositionBinary(positionBefore, positionAfter, size, minLimit, maxLimit, after) {
|
|
const overflowBefore = minLimit - (positionBefore - size);
|
|
const overflowAfter = (positionAfter + size) - maxLimit;
|
|
|
|
if (overflowAfter > 0 || overflowBefore > 0) {
|
|
after = (overflowAfter < overflowBefore);
|
|
}
|
|
|
|
let position;
|
|
if (after) {
|
|
size -= Math.max(0, overflowAfter);
|
|
position = Math.max(minLimit, positionAfter);
|
|
} else {
|
|
size -= Math.max(0, overflowBefore);
|
|
position = Math.min(maxLimit, positionBefore) - size;
|
|
}
|
|
|
|
return [position, size, after];
|
|
}
|
|
|
|
_addColor(target, cssColor) {
|
|
if (typeof cssColor !== 'string') { return; }
|
|
|
|
const color = this._getColorInfo(cssColor);
|
|
if (color === null) { return; }
|
|
|
|
const a = color[3];
|
|
if (a <= 0.0) { return; }
|
|
|
|
const aInv = 1.0 - a;
|
|
for (let i = 0; i < 3; ++i) {
|
|
target[i] = target[i] * aInv + color[i] * a;
|
|
}
|
|
}
|
|
|
|
_getColorInfo(cssColor) {
|
|
const m = /^\s*rgba?\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*([\d.]+)\s*)?\)\s*$/.exec(cssColor);
|
|
if (m === null) { return null; }
|
|
|
|
const m4 = m[4];
|
|
return [
|
|
Number.parseInt(m[1], 10),
|
|
Number.parseInt(m[2], 10),
|
|
Number.parseInt(m[3], 10),
|
|
m4 ? Math.max(0.0, Math.min(1.0, Number.parseFloat(m4))) : 1.0
|
|
];
|
|
}
|
|
|
|
_getViewport(useVisualViewport) {
|
|
const visualViewport = window.visualViewport;
|
|
if (visualViewport !== null && typeof visualViewport === 'object') {
|
|
const left = visualViewport.offsetLeft;
|
|
const top = visualViewport.offsetTop;
|
|
const width = visualViewport.width;
|
|
const height = visualViewport.height;
|
|
if (useVisualViewport) {
|
|
return {
|
|
left,
|
|
top,
|
|
right: left + width,
|
|
bottom: top + height
|
|
};
|
|
} else {
|
|
const scale = visualViewport.scale;
|
|
return {
|
|
left: 0,
|
|
top: 0,
|
|
right: Math.max(left + width, width * scale),
|
|
bottom: Math.max(top + height, height * scale)
|
|
};
|
|
}
|
|
}
|
|
|
|
return {
|
|
left: 0,
|
|
top: 0,
|
|
right: window.innerWidth,
|
|
bottom: window.innerHeight
|
|
};
|
|
}
|
|
|
|
async _setOptionsContext(optionsContext) {
|
|
this._optionsContext = optionsContext;
|
|
this._options = await yomichan.api.optionsGet(optionsContext);
|
|
this.updateTheme();
|
|
}
|
|
|
|
async _setOptionsContextIfDifferent(optionsContext) {
|
|
if (deepEqual(this._optionsContext, optionsContext)) { return; }
|
|
await this._setOptionsContext(optionsContext);
|
|
}
|
|
}
|