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/*
* Copyright (C) 2019 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 <http://www.gnu.org/licenses/>.
*/
class PopupProxyHost {
constructor() {
this.popups = new Map();
this.nextId = 0;
this.apiReceiver = null;
this.frameIdPromise = null;
}
// Public functions
static create() {
const popupProxyHost = new PopupProxyHost();
popupProxyHost.prepare();
return popupProxyHost;
}
async prepare() {
this.frameIdPromise = apiFrameInformationGet();
const {frameId} = await this.frameIdPromise;
if (typeof frameId !== 'number') { return; }
this.apiReceiver = new FrontendApiReceiver(`popup-proxy-host#${frameId}`, new Map([
['createNestedPopup', ({parentId}) => this._onApiCreateNestedPopup(parentId)],
['setOptions', ({id, options}) => this._onApiSetOptions(id, options)],
['hide', ({id, changeFocus}) => this._onApiHide(id, changeFocus)],
['isVisibleAsync', ({id}) => this._onApiIsVisibleAsync(id)],
['setVisibleOverride', ({id, visible}) => this._onApiSetVisibleOverride(id, visible)],
['containsPoint', ({id, x, y}) => this._onApiContainsPoint(id, x, y)],
['showContent', ({id, elementRect, writingMode, type, details}) => this._onApiShowContent(id, elementRect, writingMode, type, details)],
['setCustomCss', ({id, css}) => this._onApiSetCustomCss(id, css)],
['clearAutoPlayTimer', ({id}) => this._onApiClearAutoPlayTimer(id)]
]));
}
createPopup(parentId, depth) {
const parent = (typeof parentId === 'string' && this.popups.has(parentId) ? this.popups.get(parentId) : null);
const id = `${this.nextId}`;
if (parent !== null) {
depth = parent.depth + 1;
}
++this.nextId;
const popup = new Popup(id, depth, this.frameIdPromise);
if (parent !== null) {
popup.parent = parent;
parent.child = popup;
}
this.popups.set(id, popup);
return popup;
}
// Message handlers
async _onApiCreateNestedPopup(parentId) {
return this.createPopup(parentId, 0).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.isVisibleAsync();
}
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 Promise.resolve(false); }
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();
}
// Private functions
_getPopup(id) {
const popup = this.popups.get(id);
if (typeof popup === 'undefined') {
throw new Error('Invalid popup ID');
}
return popup;
}
static _convertJsonRectToDOMRect(popup, jsonRect) {
let x = jsonRect.x;
let y = jsonRect.y;
if (popup.parent !== null) {
const popupRect = popup.parent.container.getBoundingClientRect();
x += popupRect.x;
y += popupRect.y;
}
return new DOMRect(x, y, jsonRect.width, jsonRect.height);
}
static _popupCanShow(popup) {
return popup.parent === null || popup.parent.isVisible();
}
}
PopupProxyHost.instance = PopupProxyHost.create();
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