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+/*
+ * 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
+ * FrontendApiReceiver
+ * Popup
+ */
+
+class PopupFactory {
+ constructor(frameId) {
+ this._popups = new Map();
+ this._frameId = frameId;
+ }
+
+ // Public functions
+
+ async prepare() {
+ const apiReceiver = new FrontendApiReceiver(`popup-factory#${this._frameId}`, new Map([
+ ['getOrCreatePopup', {async: false, 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)}],
+ ['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)}],
+ ['getUrl', {async: false, handler: this._onApiGetUrl.bind(this)}]
+ ]));
+ apiReceiver.prepare();
+ }
+
+ getOrCreatePopup(id=null, parentId=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 (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 = yomichan.generateId(16);
+ }
+
+ // Create new popup
+ 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;
+ }
+ const popup = new Popup(id, depth, this._frameId);
+ if (parent !== null) {
+ popup.setParent(parent);
+ }
+ this._popups.set(id, popup);
+ return popup;
+ }
+
+ // API message handlers
+
+ _onApiGetOrCreatePopup({id, parentId}) {
+ const popup = this.getOrCreatePopup(id, parentId);
+ return {
+ id: popup.id
+ };
+ }
+
+ 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, visible}) {
+ const popup = this._getPopup(id);
+ return await popup.setVisibleOverride(visible);
+ }
+
+ 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, elementRect, writingMode, type, details, context}) {
+ const popup = this._getPopup(id);
+ elementRect = this._convertJsonRectToDOMRect(popup, elementRect);
+ if (!this._popupCanShow(popup)) { return; }
+ return await popup.showContent(elementRect, writingMode, type, details, context);
+ }
+
+ _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);
+ }
+
+ _onApiGetUrl() {
+ return window.location.href;
+ }
+
+ // 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) {
+ if (popup.parent !== null) {
+ const popupRect = popup.parent.getContainerRect();
+ x += popupRect.x;
+ y += popupRect.y;
+ }
+ return [x, y];
+ }
+
+ _popupCanShow(popup) {
+ return popup.parent === null || popup.parent.isVisibleSync();
+ }
+}