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