third_party/webxr_test_pages/webxr-samples/tests/unresponsive-page.html - chromium/src - Git at Google

 <!doctype html>
 <!--
 Copyright 2018 The Immersive Web Community Group

 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
 the Software without restriction, including without limitation the rights to
 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 the Software, and to permit persons to whom the Software is furnished to do so,
 subject to the following conditions:

 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 -->
 <html>
   <head>
     <meta charset='utf-8'>
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>

     <title>Unresponsive Page</title>

     <link href='../css/common.css' rel='stylesheet'></link>

     <!--The polyfill is not needed for browser that have native API support,
         but is linked by these samples for wider compatibility.-->
     <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
     <script src='../js/xrray-polyfill.js' type='module'></script>
     <script src='../js/webxr-polyfill.js'></script>

     <script src='../js/webxr-button.js'></script>
   </head>
   <body>
     <header>
       <details open>
         <summary>Unresponsive Page</summary>
         <p>
           This page mimics a poorly behaved page which requests a session but
           never begins requesting or processing frames.
           <a class="back" href="./index.html">Back</a>
         </p>
       </details>
     </header>
     <main style='text-align: center;'>
       <p>Click 'Enter XR' to see content</p>
     </main>
     <script type="module">
       import {createWebGLContext} from '../js/cottontail/src/core/renderer.js';
       import {QueryArgs} from '../js/cottontail/src/util/query-args.js';

       // If requested, initialize the WebXR polyfill
       if (QueryArgs.getBool('allowPolyfill', false)) {
         var polyfill = new WebXRPolyfill();
       }

       // XR globals.
       let xrButton = null;

       // Checks to see if WebXR is available and, if so, queries a list of
       // XRDevices that are connected to the system.
       function initXR() {
         // Adds a helper button to the page that indicates if any XRDevices are
         // available and let's the user pick between them if there's multiple.
         xrButton = new XRDeviceButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession,
           supportedSessionTypes: ['immersive-vr']
         });
         document.querySelector('header').appendChild(xrButton.domElement);
       }

       // Called when the user selects a device to present to. In response we
       // will request an exclusive session from that device.
       function onRequestSession() {
         navigator.xr.requestSession('immersive-vr').then(onSessionStarted);
       }

       // Called when we've successfully acquired a XRSession. In response we
       // will set up the necessary session state and kick off the frame loop.
       function onSessionStarted(session) {
         session.mode = 'immersive-vr';
         // This informs the 'Enter XR' button that the session has started and
         // that it should display 'Exit XR' instead.
         xrButton.setSession(session);

         // Listen for the sessions 'end' event so we can respond if the user
         // or UA ends the session for any reason.
         session.addEventListener('end', onSessionEnded);

         // Normally we'd set up our context, request a reference space, and then
         // start a frame loop here, but we want to pretend to be stalled.
       }

       // Called when the user clicks the 'Exit XR' button. In response we end
       // the session.
       function onEndSession(session) {
         session.end();
       }

       // Called either when the user has explicitly ended the session (like in
       // onEndSession()) or when the UA has ended the session for any reason.
       // At this point the session object is no longer usable and should be
       // discarded.
       function onSessionEnded(event) {
         xrButton.setSession(null);
       }

       // Start the XR application.
       initXR();
     </script>
   </body>
 </html>
	<!doctype html>
	<!--
	Copyright 2018 The Immersive Web Community Group

	Permission is hereby granted, free of charge, to any person obtaining a copy of
	this software and associated documentation files (the "Software"), to deal in
	the Software without restriction, including without limitation the rights to
	use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
	the Software, and to permit persons to whom the Software is furnished to do so,
	subject to the following conditions:

	The above copyright notice and this permission notice shall be included in all
	copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
	FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
	COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
	IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	-->
	<html>
	<head>
	<meta charset='utf-8'>
	<meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
	<meta name='mobile-web-app-capable' content='yes'>
	<meta name='apple-mobile-web-app-capable' content='yes'>

	<title>Unresponsive Page</title>

	<link href='../css/common.css' rel='stylesheet'></link>

	<!--The polyfill is not needed for browser that have native API support,
	but is linked by these samples for wider compatibility.-->
	<!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
	<script src='../js/xrray-polyfill.js' type='module'></script>
	<script src='../js/webxr-polyfill.js'></script>

	<script src='../js/webxr-button.js'></script>
	</head>
	<body>
	<header>
	<details open>
	<summary>Unresponsive Page</summary>
	<p>
	This page mimics a poorly behaved page which requests a session but
	never begins requesting or processing frames.
	<a class="back" href="./index.html">Back</a>
	</p>
	</details>
	</header>
	<main style='text-align: center;'>
	<p>Click 'Enter XR' to see content</p>
	</main>
	<script type="module">
	import {createWebGLContext} from '../js/cottontail/src/core/renderer.js';
	import {QueryArgs} from '../js/cottontail/src/util/query-args.js';

	// If requested, initialize the WebXR polyfill
	if (QueryArgs.getBool('allowPolyfill', false)) {
	var polyfill = new WebXRPolyfill();
	}

	// XR globals.
	let xrButton = null;

	// Checks to see if WebXR is available and, if so, queries a list of
	// XRDevices that are connected to the system.
	function initXR() {
	// Adds a helper button to the page that indicates if any XRDevices are
	// available and let's the user pick between them if there's multiple.
	xrButton = new XRDeviceButton({
	onRequestSession: onRequestSession,
	onEndSession: onEndSession,
	supportedSessionTypes: ['immersive-vr']
	});
	document.querySelector('header').appendChild(xrButton.domElement);
	}

	// Called when the user selects a device to present to. In response we
	// will request an exclusive session from that device.
	function onRequestSession() {
	navigator.xr.requestSession('immersive-vr').then(onSessionStarted);
	}

	// Called when we've successfully acquired a XRSession. In response we
	// will set up the necessary session state and kick off the frame loop.
	function onSessionStarted(session) {
	session.mode = 'immersive-vr';
	// This informs the 'Enter XR' button that the session has started and
	// that it should display 'Exit XR' instead.
	xrButton.setSession(session);

	// Listen for the sessions 'end' event so we can respond if the user
	// or UA ends the session for any reason.
	session.addEventListener('end', onSessionEnded);

	// Normally we'd set up our context, request a reference space, and then
	// start a frame loop here, but we want to pretend to be stalled.
	}

	// Called when the user clicks the 'Exit XR' button. In response we end
	// the session.
	function onEndSession(session) {
	session.end();
	}

	// Called either when the user has explicitly ended the session (like in
	// onEndSession()) or when the UA has ended the session for any reason.
	// At this point the session object is no longer usable and should be
	// discarded.
	function onSessionEnded(event) {
	xrButton.setSession(null);
	}

	// Start the XR application.
	initXR();
	</script>
	</body>
	</html>