/* * Copyright (C) 2019-2020 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 * FrameOffsetForwarder * Popup * PopupProxy * api */ class PopupFactory { constructor(frameId) { this._frameId = frameId; this._frameOffsetForwarder = new FrameOffsetForwarder(frameId); this._popups = new Map(); this._allPopupVisibilityTokenMap = new Map(); } // Public functions prepare() { this._frameOffsetForwarder.prepare(); api.crossFrame.registerHandlers([ ['getOrCreatePopup', {async: true, handler: this._onApiGetOrCreatePopup.bind(this)}], ['setOptionsContext', {async: true, handler: this._onApiSetOptionsContext.bind(this)}], ['hide', {async: false, handler: this._onApiHide.bind(this)}], ['isVisible', {async: true, handler: this._onApiIsVisibleAsync.bind(this)}], ['setVisibleOverride', {async: true, handler: this._onApiSetVisibleOverride.bind(this)}], ['clearVisibleOverride', {async: true, handler: this._onApiClearVisibleOverride.bind(this)}], ['containsPoint', {async: true, handler: this._onApiContainsPoint.bind(this)}], ['showContent', {async: true, handler: this._onApiShowContent.bind(this)}], ['setCustomCss', {async: false, handler: this._onApiSetCustomCss.bind(this)}], ['clearAutoPlayTimer', {async: false, handler: this._onApiClearAutoPlayTimer.bind(this)}], ['setContentScale', {async: false, handler: this._onApiSetContentScale.bind(this)}], ['updateTheme', {async: false, handler: this._onApiUpdateTheme.bind(this)}], ['setCustomOuterCss', {async: false, handler: this._onApiSetCustomOuterCss.bind(this)}], ['setChildrenSupported', {async: false, handler: this._onApiSetChildrenSupported.bind(this)}] ]); } async getOrCreatePopup({frameId=null, ownerFrameId=null, id=null, parentPopupId=null, depth=null}) { // Find by existing id if (id !== null) { const popup = this._popups.get(id); if (typeof popup !== 'undefined') { return popup; } } // Find by existing parent id let parent = null; if (parentPopupId !== null) { parent = this._popups.get(parentPopupId); if (typeof parent !== 'undefined') { const popup = parent.child; if (popup !== null) { return popup; } } else { parent = null; } } // Depth if (parent !== null) { if (depth !== null) { throw new Error('Depth cannot be set when parent exists'); } depth = parent.depth + 1; } else if (depth === null) { depth = 0; } if (frameId === this._frameId) { // New unique id if (id === null) { id = generateId(16); } const popup = new Popup(id, depth, frameId, ownerFrameId); if (parent !== null) { if (parent.child !== null) { throw new Error('Parent popup already has a child'); } popup.parent = parent; parent.child = popup; } this._popups.set(id, popup); popup.prepare(); return popup; } else { const useFrameOffsetForwarder = (parentPopupId === null); ({id, depth, frameId} = await api.crossFrame.invoke(frameId, 'getOrCreatePopup', {id, parentPopupId, frameId, ownerFrameId})); const popup = new PopupProxy(id, depth, frameId, ownerFrameId, useFrameOffsetForwarder ? this._frameOffsetForwarder : null); this._popups.set(id, popup); return popup; } } async setAllVisibleOverride(value, priority) { const promises = []; const errors = []; for (const popup of this._popups.values()) { const promise = popup.setVisibleOverride(value, priority) .then( (token) => ({popup, token}), (error) => { errors.push(error); return null; } ); promises.push(promise); } const results = (await Promise.all(promises)).filter(({token}) => token !== null); if (errors.length === 0) { const token = generateId(16); this._allPopupVisibilityTokenMap.set(token, results); return token; } // Revert on error await this._revertPopupVisibilityOverrides(results); throw errors[0]; } async clearAllVisibleOverride(token) { const results = this._allPopupVisibilityTokenMap.get(token); if (typeof results === 'undefined') { return false; } this._allPopupVisibilityTokenMap.delete(token); await this._revertPopupVisibilityOverrides(results); return true; } // API message handlers async _onApiGetOrCreatePopup({id, parentPopupId, frameId, ownerFrameId}) { const popup = await this.getOrCreatePopup({id, parentPopupId, frameId, ownerFrameId}); return { id: popup.id, depth: popup.depth, frameId: popup.frameId }; } async _onApiSetOptionsContext({id, optionsContext, source}) { const popup = this._getPopup(id); return await popup.setOptionsContext(optionsContext, source); } _onApiHide({id, changeFocus}) { const popup = this._getPopup(id); return popup.hide(changeFocus); } async _onApiIsVisibleAsync({id}) { const popup = this._getPopup(id); return await popup.isVisible(); } async _onApiSetVisibleOverride({id, value, priority}) { const popup = this._getPopup(id); return await popup.setVisibleOverride(value, priority); } async _onApiClearVisibleOverride({id, token}) { const popup = this._getPopup(id); return await popup.clearVisibleOverride(token); } async _onApiContainsPoint({id, x, y}) { const popup = this._getPopup(id); [x, y] = this._convertPopupPointToRootPagePoint(popup, x, y); return await popup.containsPoint(x, y); } async _onApiShowContent({id, details, displayDetails}) { const popup = this._getPopup(id); if (!this._popupCanShow(popup)) { return; } const {elementRect} = details; if (typeof elementRect !== 'undefined') { details.elementRect = this._convertJsonRectToDOMRect(popup, elementRect); } return await popup.showContent(details, displayDetails); } _onApiSetCustomCss({id, css}) { const popup = this._getPopup(id); return popup.setCustomCss(css); } _onApiClearAutoPlayTimer({id}) { const popup = this._getPopup(id); return popup.clearAutoPlayTimer(); } _onApiSetContentScale({id, scale}) { const popup = this._getPopup(id); return popup.setContentScale(scale); } _onApiUpdateTheme({id}) { const popup = this._getPopup(id); return popup.updateTheme(); } _onApiSetCustomOuterCss({id, css, useWebExtensionApi}) { const popup = this._getPopup(id); return popup.setCustomOuterCss(css, useWebExtensionApi); } _onApiSetChildrenSupported({id, value}) { const popup = this._getPopup(id); return popup.setChildrenSupported(value); } // Private functions _getPopup(id) { const popup = this._popups.get(id); if (typeof popup === 'undefined') { throw new Error(`Invalid popup ID ${id}`); } return popup; } _convertJsonRectToDOMRect(popup, jsonRect) { const [x, y] = this._convertPopupPointToRootPagePoint(popup, jsonRect.x, jsonRect.y); return new DOMRect(x, y, jsonRect.width, jsonRect.height); } _convertPopupPointToRootPagePoint(popup, x, y) { const parent = popup.parent; if (parent !== null) { const popupRect = parent.getFrameRect(); x += popupRect.x; y += popupRect.y; } return [x, y]; } _popupCanShow(popup) { const parent = popup.parent; return parent === null || parent.isVisibleSync(); } async _revertPopupVisibilityOverrides(overrides) { const promises = []; for (const value of overrides) { if (value === null) { continue; } const {popup, token} = value; const promise = popup.clearVisibleOverride(token) .then( (v) => v, () => false ); promises.push(promise); } return await Promise.all(promises); } }