moonfire-nvr/ui-src/lib/views/VideoDialogView.js
2020-05-08 18:44:02 -07:00

116 lines
4.2 KiB
JavaScript

// vim: set et sw=2 ts=2:
//
// This file is part of Moonfire NVR, a security camera network video recorder.
// Copyright (C) 2018 The Moonfire NVR 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.
//
// In addition, as a special exception, the copyright holders give
// permission to link the code of portions of this program with the
// OpenSSL library under certain conditions as described in each
// individual source file, and distribute linked combinations including
// the two.
//
// You must obey the GNU General Public License in all respects for all
// of the code used other than OpenSSL. If you modify file(s) with this
// exception, you may extend this exception to your version of the
// file(s), but you are not obligated to do so. If you do not wish to do
// so, delete this exception statement from your version. If you delete
// this exception statement from all source files in the program, then
// also delete it here.
//
// 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/>.
import $ from 'jquery';
import 'jquery-ui/themes/base/button.css';
import 'jquery-ui/themes/base/core.css';
import 'jquery-ui/themes/base/dialog.css';
import 'jquery-ui/themes/base/theme.css';
// This not needed for pure dialog, but we want it resizable
import 'jquery-ui/themes/base/resizable.css';
// Get dialog ui widget
import 'jquery-ui/ui/widgets/dialog';
/**
* Class to implement a simple jQuery dialog based video player.
*/
export default class VideoDialogView {
/**
* Construct the player.
*
* This does not attach the player to the DOM anywhere! In fact, construction
* of the necessary video element is delayed until an attach is requested.
* Since the close of the video removes all traces of it in the DOM, this
* approach allows repeated use by calling attach again!
*/
constructor() {}
/**
* Attach the player to the specified DOM element.
*
* @param {Node} domElement DOM element to attach to
* @return {VideoDialogView} Returns "this" for chaining.
*/
attach(domElement) {
this.videoElement_ = $('<video controls preload="auto" autoplay="true" />');
this.dialogElement_ = $('<div class="playdialog" />').append(
this.videoElement_
);
$(domElement).append(this.dialogElement_);
return this;
}
/**
* Show the player, and start playing the given url.
*
* @param {String} title Title of the video player
* @param {Number} width Width of the player
* @param {String} url URL for source media
* @return {VideoDialogView} Returns "this" for chaining.
*/
play(title, width, url) {
const videoDomElement = this.videoElement_[0];
this.dialogElement_.dialog({
title: title,
width: width,
close: () => {
videoDomElement.pause();
videoDomElement.src = ''; // Remove current source to stop loading
this.videoElement_ = null;
this.dialogElement_.remove();
this.dialogElement_ = null;
},
});
// Now that dialog is up, set the src so video starts
console.log('Video url: ' + url);
this.videoElement_.attr('src', url);
// On narrow displays (as defined by index.css), play videos in
// full-screen mode. When the user exits full-screen mode, close the
// dialog.
const narrowWindow = $('#nav').css('float') == 'none';
if (narrowWindow) {
console.log('Narrow window; starting video in full-screen mode.');
videoDomElement.requestFullscreen();
videoDomElement.addEventListener('fullscreenchange', () => {
if (document.fullscreenElement !== videoDomElement) {
console.log('Closing video because user exited full-screen mode.');
this.dialogElement_.dialog('close');
}
});
}
return this;
}
}