/* * Copyright (C) 2019-2020 Alex Yatskov <alex@foosoft.net> * Author: Alex Yatskov <alex@foosoft.net> * * 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 apiFrameInformationGet, FrontendApiReceiver, Popup*/ class PopupProxyHost { constructor() { this._popups = new Map(); this._nextId = 0; this._apiReceiver = null; this._frameIdPromise = null; } // Public functions async prepare() { this._frameIdPromise = apiFrameInformationGet(); const {frameId} = await this._frameIdPromise; if (typeof frameId !== 'number') { return; } this._apiReceiver = new FrontendApiReceiver(`popup-proxy-host#${frameId}`, new Map([ ['getOrCreatePopup', ({id, parentId}) => this._onApiGetOrCreatePopup(id, parentId)], ['setOptions', ({id, options}) => this._onApiSetOptions(id, options)], ['hide', ({id, changeFocus}) => this._onApiHide(id, changeFocus)], ['isVisible', ({id}) => this._onApiIsVisibleAsync(id)], ['setVisibleOverride', ({id, visible}) => this._onApiSetVisibleOverride(id, visible)], ['containsPoint', ({id, x, y}) => this._onApiContainsPoint(id, x, y)], ['showContent', ({id, elementRect, writingMode, type, details}) => this._onApiShowContent(id, elementRect, writingMode, type, details)], ['setCustomCss', ({id, css}) => this._onApiSetCustomCss(id, css)], ['clearAutoPlayTimer', ({id}) => this._onApiClearAutoPlayTimer(id)], ['setContentScale', ({id, scale}) => this._onApiSetContentScale(id, scale)] ])); } getOrCreatePopup(id=null, parentId=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 (parentId !== null) { parent = this._popups.get(parentId); if (typeof parent !== 'undefined') { const popup = parent.child; if (popup !== null) { return popup; } } else { parent = null; } } // New unique id if (id === null) { id = this._nextId++; } // Create new popup const depth = (parent !== null ? parent.depth + 1 : 0); const popup = new Popup(id, depth, this._frameIdPromise); if (parent !== null) { popup.setParent(parent); } this._popups.set(id, popup); return popup; } // Message handlers async _onApiGetOrCreatePopup(id, parentId) { const popup = this.getOrCreatePopup(id, parentId); return { id: popup.id }; } async _onApiSetOptions(id, options) { const popup = this._getPopup(id); return await popup.setOptions(options); } async _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, visible) { const popup = this._getPopup(id); return await popup.setVisibleOverride(visible); } async _onApiContainsPoint(id, x, y) { const popup = this._getPopup(id); return await popup.containsPoint(x, y); } async _onApiShowContent(id, elementRect, writingMode, type, details) { const popup = this._getPopup(id); elementRect = PopupProxyHost._convertJsonRectToDOMRect(popup, elementRect); if (!PopupProxyHost._popupCanShow(popup)) { return; } return await popup.showContent(elementRect, writingMode, type, details); } async _onApiSetCustomCss(id, css) { const popup = this._getPopup(id); return popup.setCustomCss(css); } async _onApiClearAutoPlayTimer(id) { const popup = this._getPopup(id); return popup.clearAutoPlayTimer(); } async _onApiSetContentScale(id, scale) { const popup = this._getPopup(id); return popup.setContentScale(scale); } // Private functions _getPopup(id) { const popup = this._popups.get(id); if (typeof popup === 'undefined') { throw new Error(`Invalid popup ID ${id}`); } return popup; } static _convertJsonRectToDOMRect(popup, jsonRect) { let x = jsonRect.x; let y = jsonRect.y; if (popup.parent !== null) { const popupRect = popup.parent.getContainerRect(); x += popupRect.x; y += popupRect.y; } return new DOMRect(x, y, jsonRect.width, jsonRect.height); } static _popupCanShow(popup) { return popup.parent === null || popup.parent.isVisibleSync(); } }