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webvr-polyfill.js
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/**
* @license
* webvr-polyfill
* Copyright (c) 2015-2017 Google
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @license
* wglu-preserve-state.js
* Copyright (c) 2016, Brandon Jones.
*
* 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.
*/
/******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {};
/******/
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/
/******/ // Check if module is in cache
/******/ if(installedModules[moduleId]) {
/******/ return installedModules[moduleId].exports;
/******/ }
/******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = {
/******/ i: moduleId,
/******/ l: false,
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/******/ };
/******/
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ // Flag the module as loaded
/******/ module.l = true;
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/******/
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/
/******/ // identity function for calling harmony imports with the correct context
/******/ __webpack_require__.i = function(value) { return value; };
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/******/ __webpack_require__.d = function(exports, name, getter) {
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/******/ __webpack_require__.n = function(module) {
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/******/ function getModuleExports() { return module; };
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/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, exports) {
/*
* Copyright 2015 Google Inc. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var Util = window.Util || {};
Util.MIN_TIMESTEP = 0.001;
Util.MAX_TIMESTEP = 1;
Util.base64 = function(mimeType, base64) {
return 'data:' + mimeType + ';base64,' + base64;
};
Util.clamp = function(value, min, max) {
return Math.min(Math.max(min, value), max);
};
Util.lerp = function(a, b, t) {
return a + ((b - a) * t);
};
/**
* Light polyfill for `Promise.race`. Returns
* a promise that resolves when the first promise
* provided resolves.
*
* @param {Array<Promise>} promises
*/
Util.race = function(promises) {
if (Promise.race) {
return Promise.race(promises);
}
return new Promise(function (resolve, reject) {
for (var i = 0; i < promises.length; i++) {
promises[i].then(resolve, reject);
}
});
};
Util.isIOS = (function() {
var isIOS = /iPad|iPhone|iPod/.test(navigator.platform);
return function() {
return isIOS;
};
})();
Util.isWebViewAndroid = (function() {
var isWebViewAndroid = navigator.userAgent.indexOf('Version') !== -1 &&
navigator.userAgent.indexOf('Android') !== -1 &&
navigator.userAgent.indexOf('Chrome') !== -1;
return function() {
return isWebViewAndroid;
};
})();
Util.isSafari = (function() {
var isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
return function() {
return isSafari;
};
})();
Util.isFirefoxAndroid = (function() {
var isFirefoxAndroid = navigator.userAgent.indexOf('Firefox') !== -1 &&
navigator.userAgent.indexOf('Android') !== -1;
return function() {
return isFirefoxAndroid;
};
})();
Util.isLandscapeMode = function() {
return (window.orientation == 90 || window.orientation == -90);
};
// Helper method to validate the time steps of sensor timestamps.
Util.isTimestampDeltaValid = function(timestampDeltaS) {
if (isNaN(timestampDeltaS)) {
return false;
}
if (timestampDeltaS <= Util.MIN_TIMESTEP) {
return false;
}
if (timestampDeltaS > Util.MAX_TIMESTEP) {
return false;
}
return true;
};
Util.getScreenWidth = function() {
return Math.max(window.screen.width, window.screen.height) *
window.devicePixelRatio;
};
Util.getScreenHeight = function() {
return Math.min(window.screen.width, window.screen.height) *
window.devicePixelRatio;
};
Util.requestFullscreen = function(element) {
if (Util.isWebViewAndroid()) {
return false;
}
if (element.requestFullscreen) {
element.requestFullscreen();
} else if (element.webkitRequestFullscreen) {
element.webkitRequestFullscreen();
} else if (element.mozRequestFullScreen) {
element.mozRequestFullScreen();
} else if (element.msRequestFullscreen) {
element.msRequestFullscreen();
} else {
return false;
}
return true;
};
Util.exitFullscreen = function() {
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.webkitExitFullscreen) {
document.webkitExitFullscreen();
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
} else if (document.msExitFullscreen) {
document.msExitFullscreen();
} else {
return false;
}
return true;
};
Util.getFullscreenElement = function() {
return document.fullscreenElement ||
document.webkitFullscreenElement ||
document.mozFullScreenElement ||
document.msFullscreenElement;
};
Util.linkProgram = function(gl, vertexSource, fragmentSource, attribLocationMap) {
// No error checking for brevity.
var vertexShader = gl.createShader(gl.VERTEX_SHADER);
gl.shaderSource(vertexShader, vertexSource);
gl.compileShader(vertexShader);
var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
gl.shaderSource(fragmentShader, fragmentSource);
gl.compileShader(fragmentShader);
var program = gl.createProgram();
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
for (var attribName in attribLocationMap)
gl.bindAttribLocation(program, attribLocationMap[attribName], attribName);
gl.linkProgram(program);
gl.deleteShader(vertexShader);
gl.deleteShader(fragmentShader);
return program;
};
Util.getProgramUniforms = function(gl, program) {
var uniforms = {};
var uniformCount = gl.getProgramParameter(program, gl.ACTIVE_UNIFORMS);
var uniformName = '';
for (var i = 0; i < uniformCount; i++) {
var uniformInfo = gl.getActiveUniform(program, i);
uniformName = uniformInfo.name.replace('[0]', '');
uniforms[uniformName] = gl.getUniformLocation(program, uniformName);
}
return uniforms;
};
Util.orthoMatrix = function (out, left, right, bottom, top, near, far) {
var lr = 1 / (left - right),
bt = 1 / (bottom - top),
nf = 1 / (near - far);
out[0] = -2 * lr;
out[1] = 0;
out[2] = 0;
out[3] = 0;
out[4] = 0;
out[5] = -2 * bt;
out[6] = 0;
out[7] = 0;
out[8] = 0;
out[9] = 0;
out[10] = 2 * nf;
out[11] = 0;
out[12] = (left + right) * lr;
out[13] = (top + bottom) * bt;
out[14] = (far + near) * nf;
out[15] = 1;
return out;
};
Util.copyArray = function (source, dest) {
for (var i = 0, n = source.length; i < n; i++) {
dest[i] = source[i];
}
};
Util.isMobile = function() {
var check = false;
(function(a){if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4)))check = true})(navigator.userAgent||navigator.vendor||window.opera);
return check;
};
Util.extend = function(dest, src) {
for (var key in src) {
if (src.hasOwnProperty(key)) {
dest[key] = src[key];
}
}
return dest;
}
Util.safariCssSizeWorkaround = function(canvas) {
// TODO(smus): Remove this workaround when Safari for iOS is fixed.
// iOS only workaround (for https://bugs.webkit.org/show_bug.cgi?id=152556).
//
// "To the last I grapple with thee;
// from hell's heart I stab at thee;
// for hate's sake I spit my last breath at thee."
// -- Moby Dick, by Herman Melville
if (Util.isIOS()) {
var width = canvas.style.width;
var height = canvas.style.height;
canvas.style.width = (parseInt(width) + 1) + 'px';
canvas.style.height = (parseInt(height)) + 'px';
setTimeout(function() {
canvas.style.width = width;
canvas.style.height = height;
}, 100);
}
// Debug only.
window.Util = Util;
window.canvas = canvas;
};
Util.isDebug = function() {
return Util.getQueryParameter('debug');
};
Util.getQueryParameter = function(name) {
var name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
results = regex.exec(location.search);
return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
};
Util.frameDataFromPose = (function() {
var piOver180 = Math.PI / 180.0;
var rad45 = Math.PI * 0.25;
// Borrowed from glMatrix.
function mat4_perspectiveFromFieldOfView(out, fov, near, far) {
var upTan = Math.tan(fov ? (fov.upDegrees * piOver180) : rad45),
downTan = Math.tan(fov ? (fov.downDegrees * piOver180) : rad45),
leftTan = Math.tan(fov ? (fov.leftDegrees * piOver180) : rad45),
rightTan = Math.tan(fov ? (fov.rightDegrees * piOver180) : rad45),
xScale = 2.0 / (leftTan + rightTan),
yScale = 2.0 / (upTan + downTan);
out[0] = xScale;
out[1] = 0.0;
out[2] = 0.0;
out[3] = 0.0;
out[4] = 0.0;
out[5] = yScale;
out[6] = 0.0;
out[7] = 0.0;
out[8] = -((leftTan - rightTan) * xScale * 0.5);
out[9] = ((upTan - downTan) * yScale * 0.5);
out[10] = far / (near - far);
out[11] = -1.0;
out[12] = 0.0;
out[13] = 0.0;
out[14] = (far * near) / (near - far);
out[15] = 0.0;
return out;
}
function mat4_fromRotationTranslation(out, q, v) {
// Quaternion math
var x = q[0], y = q[1], z = q[2], w = q[3],
x2 = x + x,
y2 = y + y,
z2 = z + z,
xx = x * x2,
xy = x * y2,
xz = x * z2,
yy = y * y2,
yz = y * z2,
zz = z * z2,
wx = w * x2,
wy = w * y2,
wz = w * z2;
out[0] = 1 - (yy + zz);
out[1] = xy + wz;
out[2] = xz - wy;
out[3] = 0;
out[4] = xy - wz;
out[5] = 1 - (xx + zz);
out[6] = yz + wx;
out[7] = 0;
out[8] = xz + wy;
out[9] = yz - wx;
out[10] = 1 - (xx + yy);
out[11] = 0;
out[12] = v[0];
out[13] = v[1];
out[14] = v[2];
out[15] = 1;
return out;
};
function mat4_translate(out, a, v) {
var x = v[0], y = v[1], z = v[2],
a00, a01, a02, a03,
a10, a11, a12, a13,
a20, a21, a22, a23;
if (a === out) {
out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];
out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];
out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];
out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];
} else {
a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];
a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];
a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];
out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;
out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;
out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;
out[12] = a00 * x + a10 * y + a20 * z + a[12];
out[13] = a01 * x + a11 * y + a21 * z + a[13];
out[14] = a02 * x + a12 * y + a22 * z + a[14];
out[15] = a03 * x + a13 * y + a23 * z + a[15];
}
return out;
};
function mat4_invert(out, a) {
var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],
a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],
a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],
a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],
b00 = a00 * a11 - a01 * a10,
b01 = a00 * a12 - a02 * a10,
b02 = a00 * a13 - a03 * a10,
b03 = a01 * a12 - a02 * a11,
b04 = a01 * a13 - a03 * a11,
b05 = a02 * a13 - a03 * a12,
b06 = a20 * a31 - a21 * a30,
b07 = a20 * a32 - a22 * a30,
b08 = a20 * a33 - a23 * a30,
b09 = a21 * a32 - a22 * a31,
b10 = a21 * a33 - a23 * a31,
b11 = a22 * a33 - a23 * a32,
// Calculate the determinant
det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
if (!det) {
return null;
}
det = 1.0 / det;
out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;
out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;
out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;
out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;
out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;
out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;
out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;
out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;
out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;
out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;
out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;
out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;
out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;
out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;
out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;
out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;
return out;
};
var defaultOrientation = new Float32Array([0, 0, 0, 1]);
var defaultPosition = new Float32Array([0, 0, 0]);
function updateEyeMatrices(projection, view, pose, parameters, vrDisplay) {
mat4_perspectiveFromFieldOfView(projection, parameters ? parameters.fieldOfView : null, vrDisplay.depthNear, vrDisplay.depthFar);
var orientation = pose.orientation || defaultOrientation;
var position = pose.position || defaultPosition;
mat4_fromRotationTranslation(view, orientation, position);
if (parameters)
mat4_translate(view, view, parameters.offset);
mat4_invert(view, view);
}
return function(frameData, pose, vrDisplay) {
if (!frameData || !pose)
return false;
frameData.pose = pose;
frameData.timestamp = pose.timestamp;
updateEyeMatrices(
frameData.leftProjectionMatrix, frameData.leftViewMatrix,
pose, vrDisplay.getEyeParameters("left"), vrDisplay);
updateEyeMatrices(
frameData.rightProjectionMatrix, frameData.rightViewMatrix,
pose, vrDisplay.getEyeParameters("right"), vrDisplay);
return true;
};
})();
Util.isInsideCrossDomainIFrame = function() {
var isFramed = (window.self !== window.top);
var refDomain = Util.getDomainFromUrl(document.referrer);
var thisDomain = Util.getDomainFromUrl(window.location.href);
return isFramed && (refDomain !== thisDomain);
};
// From http://stackoverflow.com/a/23945027.
Util.getDomainFromUrl = function(url) {
var domain;
// Find & remove protocol (http, ftp, etc.) and get domain.
if (url.indexOf("://") > -1) {
domain = url.split('/')[2];
}
else {
domain = url.split('/')[0];
}
//find & remove port number
domain = domain.split(':')[0];
return domain;
}
module.exports = Util;
/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {
/*
* Copyright 2015 Google Inc. All Rights Reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var Util = __webpack_require__(0);
var WakeLock = __webpack_require__(23);
// Start at a higher number to reduce chance of conflict.
var nextDisplayId = 1000;
var hasShowDeprecationWarning = false;
var defaultLeftBounds = [0, 0, 0.5, 1];
var defaultRightBounds = [0.5, 0, 0.5, 1];
/**
* The base class for all VR frame data.
*/
function VRFrameData() {
this.leftProjectionMatrix = new Float32Array(16);
this.leftViewMatrix = new Float32Array(16);
this.rightProjectionMatrix = new Float32Array(16);
this.rightViewMatrix = new Float32Array(16);
this.pose = null;
};
/**
* The base class for all VR displays.
*/
function VRDisplay() {
this.isPolyfilled = true;
this.displayId = nextDisplayId++;
this.displayName = 'webvr-polyfill displayName';
this.depthNear = 0.01;
this.depthFar = 10000.0;
this.isConnected = true;
this.isPresenting = false;
this.capabilities = {
hasPosition: false,
hasOrientation: false,
hasExternalDisplay: false,
canPresent: false,
maxLayers: 1
};
this.stageParameters = null;
// "Private" members.
this.waitingForPresent_ = false;
this.layer_ = null;
this.fullscreenElement_ = null;
this.fullscreenWrapper_ = null;
this.fullscreenElementCachedStyle_ = null;
this.fullscreenEventTarget_ = null;
this.fullscreenChangeHandler_ = null;
this.fullscreenErrorHandler_ = null;
this.wakelock_ = new WakeLock();
}
VRDisplay.prototype.getFrameData = function(frameData) {
// TODO: Technically this should retain it's value for the duration of a frame
// but I doubt that's practical to do in javascript.
return Util.frameDataFromPose(frameData, this.getPose(), this);
};
VRDisplay.prototype.getPose = function() {
// TODO: Technically this should retain it's value for the duration of a frame
// but I doubt that's practical to do in javascript.
return this.getImmediatePose();
};
VRDisplay.prototype.requestAnimationFrame = function(callback) {
return window.requestAnimationFrame(callback);
};
VRDisplay.prototype.cancelAnimationFrame = function(id) {
return window.cancelAnimationFrame(id);
};
VRDisplay.prototype.wrapForFullscreen = function(element) {
// Don't wrap in iOS.
if (Util.isIOS()) {
return element;
}
if (!this.fullscreenWrapper_) {
this.fullscreenWrapper_ = document.createElement('div');
var cssProperties = [
'height: ' + Math.min(screen.height, screen.width) + 'px !important',
'top: 0 !important',
'left: 0 !important',
'right: 0 !important',
'border: 0',
'margin: 0',
'padding: 0',
'z-index: 999999 !important',
'position: fixed',
];
this.fullscreenWrapper_.setAttribute('style', cssProperties.join('; ') + ';');
this.fullscreenWrapper_.classList.add('webvr-polyfill-fullscreen-wrapper');
}
if (this.fullscreenElement_ == element) {
return this.fullscreenWrapper_;
}
// Remove any previously applied wrappers
this.removeFullscreenWrapper();
this.fullscreenElement_ = element;
var parent = this.fullscreenElement_.parentElement;
parent.insertBefore(this.fullscreenWrapper_, this.fullscreenElement_);
parent.removeChild(this.fullscreenElement_);
this.fullscreenWrapper_.insertBefore(this.fullscreenElement_, this.fullscreenWrapper_.firstChild);
this.fullscreenElementCachedStyle_ = this.fullscreenElement_.getAttribute('style');
var self = this;
function applyFullscreenElementStyle() {
if (!self.fullscreenElement_) {
return;
}
var cssProperties = [
'position: absolute',
'top: 0',
'left: 0',
'width: ' + Math.max(screen.width, screen.height) + 'px',
'height: ' + Math.min(screen.height, screen.width) + 'px',
'border: 0',
'margin: 0',
'padding: 0',
];
self.fullscreenElement_.setAttribute('style', cssProperties.join('; ') + ';');
}
applyFullscreenElementStyle();
return this.fullscreenWrapper_;
};
VRDisplay.prototype.removeFullscreenWrapper = function() {
if (!this.fullscreenElement_) {
return;
}
var element = this.fullscreenElement_;
if (this.fullscreenElementCachedStyle_) {
element.setAttribute('style', this.fullscreenElementCachedStyle_);
} else {
element.removeAttribute('style');
}
this.fullscreenElement_ = null;
this.fullscreenElementCachedStyle_ = null;
var parent = this.fullscreenWrapper_.parentElement;
this.fullscreenWrapper_.removeChild(element);
parent.insertBefore(element, this.fullscreenWrapper_);
parent.removeChild(this.fullscreenWrapper_);
return element;
};
VRDisplay.prototype.requestPresent = function(layers) {
var wasPresenting = this.isPresenting;
var self = this;
if (!(layers instanceof Array)) {
if (!hasShowDeprecationWarning) {
console.warn("Using a deprecated form of requestPresent. Should pass in an array of VRLayers.");
hasShowDeprecationWarning = true;
}
layers = [layers];
}
return new Promise(function(resolve, reject) {
if (!self.capabilities.canPresent) {
reject(new Error('VRDisplay is not capable of presenting.'));
return;
}
if (layers.length == 0 || layers.length > self.capabilities.maxLayers) {
reject(new Error('Invalid number of layers.'));
return;
}
var incomingLayer = layers[0];
if (!incomingLayer.source) {
/*
todo: figure out the correct behavior if the source is not provided.
see https://github.com/w3c/webvr/issues/58
*/
resolve();
return;
}
var leftBounds = incomingLayer.leftBounds || defaultLeftBounds;
var rightBounds = incomingLayer.rightBounds || defaultRightBounds;
if (wasPresenting) {
// Already presenting, just changing configuration
var layer = self.layer_;
if (layer.source !== incomingLayer.source) {
layer.source = incomingLayer.source;
}
for (var i = 0; i < 4; i++) {
layer.leftBounds[i] = leftBounds[i];
layer.rightBounds[i] = rightBounds[i];
}
resolve();
return;
}
// Was not already presenting.
self.layer_ = {
predistorted: incomingLayer.predistorted,
source: incomingLayer.source,
leftBounds: leftBounds.slice(0),
rightBounds: rightBounds.slice(0)
};
self.waitingForPresent_ = false;
if (self.layer_ && self.layer_.source) {
var fullscreenElement = self.wrapForFullscreen(self.layer_.source);
var onFullscreenChange = function() {
var actualFullscreenElement = Util.getFullscreenElement();
self.isPresenting = (fullscreenElement === actualFullscreenElement);
if (self.isPresenting) {
if (screen.orientation && screen.orientation.lock) {
screen.orientation.lock('landscape-primary').catch(function(error){
console.error('screen.orientation.lock() failed due to', error.message)
});
}
self.waitingForPresent_ = false;
self.beginPresent_();
resolve();
} else {
if (screen.orientation && screen.orientation.unlock) {
screen.orientation.unlock();
}
self.removeFullscreenWrapper();
self.wakelock_.release();
self.endPresent_();
self.removeFullscreenListeners_();
}
self.fireVRDisplayPresentChange_();
}
var onFullscreenError = function() {
if (!self.waitingForPresent_) {
return;
}
self.removeFullscreenWrapper();
self.removeFullscreenListeners_();
self.wakelock_.release();
self.waitingForPresent_ = false;
self.isPresenting = false;
reject(new Error('Unable to present.'));
}
self.addFullscreenListeners_(fullscreenElement,
onFullscreenChange, onFullscreenError);
if (Util.requestFullscreen(fullscreenElement)) {
self.wakelock_.request();
self.waitingForPresent_ = true;
} else if (Util.isIOS() || Util.isWebViewAndroid()) {
// *sigh* Just fake it.
self.wakelock_.request();
self.isPresenting = true;
self.beginPresent_();
self.fireVRDisplayPresentChange_();
resolve();
}
}
if (!self.waitingForPresent_ && !Util.isIOS()) {
Util.exitFullscreen();
reject(new Error('Unable to present.'));
}
});
};
VRDisplay.prototype.exitPresent = function() {
var wasPresenting = this.isPresenting;
var self = this;
this.isPresenting = false;
this.layer_ = null;
this.wakelock_.release();
return new Promise(function(resolve, reject) {
if (wasPresenting) {
if (!Util.exitFullscreen() && Util.isIOS()) {
self.endPresent_();
self.fireVRDisplayPresentChange_();
}
if (Util.isWebViewAndroid()) {
self.removeFullscreenWrapper();
self.removeFullscreenListeners_();
self.endPresent_();
self.fireVRDisplayPresentChange_();
}
resolve();
} else {
reject(new Error('Was not presenting to VRDisplay.'));
}
});
};
VRDisplay.prototype.getLayers = function() {
if (this.layer_) {
return [this.layer_];
}
return [];
};
VRDisplay.prototype.fireVRDisplayPresentChange_ = function() {
// Important: unfortunately we cannot have full spec compliance here.
// CustomEvent custom fields all go under e.detail (so the VRDisplay ends up
// being e.detail.display, instead of e.display as per WebVR spec).
var event = new CustomEvent('vrdisplaypresentchange', {detail: {display: this}});
window.dispatchEvent(event);
};
VRDisplay.prototype.fireVRDisplayConnect_ = function() {
// Important: unfortunately we cannot have full spec compliance here.
// CustomEvent custom fields all go under e.detail (so the VRDisplay ends up
// being e.detail.display, instead of e.display as per WebVR spec).
var event = new CustomEvent('vrdisplayconnect', {detail: {display: this}});
window.dispatchEvent(event);
};
VRDisplay.prototype.addFullscreenListeners_ = function(element, changeHandler, errorHandler) {
this.removeFullscreenListeners_();
this.fullscreenEventTarget_ = element;
this.fullscreenChangeHandler_ = changeHandler;
this.fullscreenErrorHandler_ = errorHandler;
if (changeHandler) {
if (document.fullscreenEnabled) {
element.addEventListener('fullscreenchange', changeHandler, false);
} else if (document.webkitFullscreenEnabled) {
element.addEventListener('webkitfullscreenchange', changeHandler, false);
} else if (document.mozFullScreenEnabled) {
document.addEventListener('mozfullscreenchange', changeHandler, false);
} else if (document.msFullscreenEnabled) {
element.addEventListener('msfullscreenchange', changeHandler, false);
}
}
if (errorHandler) {
if (document.fullscreenEnabled) {
element.addEventListener('fullscreenerror', errorHandler, false);
} else if (document.webkitFullscreenEnabled) {
element.addEventListener('webkitfullscreenerror', errorHandler, false);
} else if (document.mozFullScreenEnabled) {
document.addEventListener('mozfullscreenerror', errorHandler, false);
} else if (document.msFullscreenEnabled) {
element.addEventListener('msfullscreenerror', errorHandler, false);
}
}
};
VRDisplay.prototype.removeFullscreenListeners_ = function() {
if (!this.fullscreenEventTarget_)
return;
var element = this.fullscreenEventTarget_;
if (this.fullscreenChangeHandler_) {
var changeHandler = this.fullscreenChangeHandler_;
element.removeEventListener('fullscreenchange', changeHandler, false);
element.removeEventListener('webkitfullscreenchange', changeHandler, false);
document.removeEventListener('mozfullscreenchange', changeHandler, false);
element.removeEventListener('msfullscreenchange', changeHandler, false);
}
if (this.fullscreenErrorHandler_) {
var errorHandler = this.fullscreenErrorHandler_;
element.removeEventListener('fullscreenerror', errorHandler, false);
element.removeEventListener('webkitfullscreenerror', errorHandler, false);
document.removeEventListener('mozfullscreenerror', errorHandler, false);
element.removeEventListener('msfullscreenerror', errorHandler, false);
}
this.fullscreenEventTarget_ = null;
this.fullscreenChangeHandler_ = null;