File: /www/wwwroot//www.xxlht.com/sh/033/aa_files/NJq0jePP83E.html
<!DOCTYPE html>
<!-- saved from url=(0029)chrome-error://chromewebdata/ -->
<html dir="ltr" lang="zh" subframe=""><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="theme-color" content="#fff">
<meta name="viewport" content="width=device-width, initial-scale=1.0,
maximum-scale=1.0, user-scalable=no">
<title>www.youtube.com</title>
<style>/* Copyright 2017 The Chromium Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file. */
a {
color: var(--link-color);
}
body {
--background-color: #fff;
--error-code-color: var(--google-gray-700);
--google-blue-100: rgb(210, 227, 252);
--google-blue-300: rgb(138, 180, 248);
--google-blue-600: rgb(26, 115, 232);
--google-blue-700: rgb(25, 103, 210);
--google-gray-100: rgb(241, 243, 244);
--google-gray-300: rgb(218, 220, 224);
--google-gray-500: rgb(154, 160, 166);
--google-gray-50: rgb(248, 249, 250);
--google-gray-600: rgb(128, 134, 139);
--google-gray-700: rgb(95, 99, 104);
--google-gray-800: rgb(60, 64, 67);
--google-gray-900: rgb(32, 33, 36);
--heading-color: var(--google-gray-900);
--link-color: rgb(88, 88, 88);
--popup-container-background-color: rgba(0,0,0,.65);
--primary-button-fill-color-active: var(--google-blue-700);
--primary-button-fill-color: var(--google-blue-600);
--primary-button-text-color: #fff;
--quiet-background-color: rgb(247, 247, 247);
--secondary-button-border-color: var(--google-gray-500);
--secondary-button-fill-color: #fff;
--secondary-button-hover-border-color: var(--google-gray-600);
--secondary-button-hover-fill-color: var(--google-gray-50);
--secondary-button-text-color: var(--google-gray-700);
--small-link-color: var(--google-gray-700);
--text-color: var(--google-gray-700);
background: var(--background-color);
color: var(--text-color);
word-wrap: break-word;
}
.nav-wrapper .secondary-button {
background: var(--secondary-button-fill-color);
border: 1px solid var(--secondary-button-border-color);
color: var(--secondary-button-text-color);
float: none;
margin: 0;
padding: 8px 16px;
}
.hidden {
display: none;
}
html {
-webkit-text-size-adjust: 100%;
font-size: 125%;
}
.icon {
background-repeat: no-repeat;
background-size: 100%;
}
@media (prefers-color-scheme: dark) {
body.captive-portal,
body.dark-mode-available,
body.neterror,
body.supervised-user-block,
.offline body {
--background-color: var(--google-gray-900);
--error-code-color: var(--google-gray-500);
--heading-color: var(--google-gray-500);
--link-color: var(--google-blue-300);
--primary-button-fill-color-active: rgb(129, 162, 208);
--primary-button-fill-color: var(--google-blue-300);
--primary-button-text-color: var(--google-gray-900);
--quiet-background-color: var(--background-color);
--secondary-button-border-color: var(--google-gray-700);
--secondary-button-fill-color: var(--google-gray-900);
--secondary-button-hover-fill-color: rgb(48, 51, 57);
--secondary-button-text-color: var(--google-blue-300);
--small-link-color: var(--google-blue-300);
--text-color: var(--google-gray-500);
}
}
</style>
<style>/* Copyright 2014 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file. */
button {
border: 0;
border-radius: 4px;
box-sizing: border-box;
color: var(--primary-button-text-color);
cursor: pointer;
float: right;
font-size: .875em;
margin: 0;
padding: 8px 16px;
transition: box-shadow 150ms cubic-bezier(0.4, 0, 0.2, 1);
user-select: none;
}
[dir='rtl'] button {
float: left;
}
.bad-clock button,
.captive-portal button,
.lookalike-url button,
.main-frame-blocked button,
.neterror button,
.offline button,
.pdf button,
.ssl button,
.safe-browsing-billing button {
background: var(--primary-button-fill-color);
}
button:active {
background: var(--primary-button-fill-color-active);
outline: 0;
}
#debugging {
display: inline;
overflow: auto;
}
.debugging-content {
line-height: 1em;
margin-bottom: 0;
margin-top: 1em;
}
.debugging-content-fixed-width {
display: block;
font-family: monospace;
font-size: 1.2em;
margin-top: 0.5em;
}
.debugging-title {
font-weight: bold;
}
#details {
margin: 0 0 50px;
}
#details p:not(:first-of-type) {
margin-top: 20px;
}
.secondary-button:active {
border-color: white;
box-shadow: 0 1px 2px 0 rgba(60, 64, 67, .3),
0 2px 6px 2px rgba(60, 64, 67, .15);
}
.secondary-button:hover {
background: var(--secondary-button-hover-fill-color);
border-color: var(--secondary-button-hover-border-color);
text-decoration: none;
}
.error-code {
color: var(--error-code-color);
font-size: .86667em;
text-transform: uppercase;
margin-top: 12px;
}
#error-debugging-info {
font-size: 0.8em;
}
h1 {
color: var(--heading-color);
font-size: 1.6em;
font-weight: normal;
line-height: 1.25em;
margin-bottom: 16px;
}
h2 {
font-size: 1.2em;
font-weight: normal;
}
.icon {
height: 72px;
margin: 0 0 40px;
width: 72px;
}
input[type=checkbox] {
opacity: 0;
}
input[type=checkbox]:focus ~ .checkbox:after {
outline: -webkit-focus-ring-color auto 5px;
}
.interstitial-wrapper {
box-sizing: border-box;
font-size: 1em;
line-height: 1.6em;
margin: 14vh auto 0;
max-width: 600px;
width: 100%;
}
#main-message > p {
display: inline;
}
#extended-reporting-opt-in {
font-size: .875em;
margin-top: 39px;
}
#extended-reporting-opt-in label {
display: grid;
grid-template-columns: 1.8em 1fr;
position: relative;
}
.nav-wrapper {
margin-top: 51px;
}
.nav-wrapper::after {
clear: both;
content: '';
display: table;
width: 100%;
}
.small-link {
color: var(--small-link-color);
font-size: .875em;
}
.checkboxes {
flex: 0 0 24px;
}
.checkbox {
--padding: .9em;
background: transparent;
display: block;
height: 1em;
left: -1em;
padding: var(--padding);
position: absolute;
right: 0;
top: -.5em;
width: 1em;
}
.checkbox::after {
border: 1px solid white;
border-radius: 2px;
content: '';
height: 1em;
position: absolute;
top: var(--padding);
left: var(--padding);
width: 1em;
}
.checkbox::before {
background: transparent;
border: 2px solid white;
border-right-width: 0;
border-top-width: 0;
content: '';
height: .2em;
left: calc(.3em + var(--padding));
opacity: 0;
position: absolute;
top: calc(.3em + var(--padding));
transform: rotate(-45deg);
width: .5em;
}
input[type=checkbox]:checked ~ .checkbox::before {
opacity: 1;
}
#recurrent-error-message {
background: #ededed;
border-radius: 4px;
padding: 12px 16px;
margin-top: 12px;
margin-bottom: 16px;
}
.showing-recurrent-error-message #extended-reporting-opt-in {
margin-top: 16px;
}
@media (max-width: 700px) {
.interstitial-wrapper {
padding: 0 10%;
}
#error-debugging-info {
overflow: auto;
}
}
@media (max-width: 420px) {
button,
[dir='rtl'] button,
.small-link {
float: none;
font-size: .825em;
font-weight: 500;
margin: 0;
width: 100%;
}
button {
padding: 16px 24px;
}
#details {
margin: 20px 0 20px 0;
}
#details p:not(:first-of-type) {
margin-top: 10px;
}
.secondary-button:not(.hidden) {
display: block;
margin-top: 20px;
text-align: center;
width: 100%;
}
.interstitial-wrapper {
padding: 0 5%;
}
#extended-reporting-opt-in {
margin-top: 24px;
}
.nav-wrapper {
margin-top: 30px;
}
}
/**
* Mobile specific styling.
* Navigation buttons are anchored to the bottom of the screen.
* Details message replaces the top content in its own scrollable area.
*/
@media (max-width: 420px) {
.nav-wrapper .secondary-button {
border: 0;
margin: 16px 0 0;
margin-inline-end: 0;
padding-bottom: 16px;
padding-top: 16px;
}
}
/* Fixed nav. */
@media (min-width: 240px) and (max-width: 420px) and
(min-height: 401px),
(min-width: 421px) and (min-height: 240px) and
(max-height: 560px) {
body .nav-wrapper {
background: var(--background-color);
bottom: 0;
box-shadow: 0 -22px 40px var(--background-color);
left: 0;
margin: 0 auto;
max-width: 736px;
padding-left: 24px;
padding-right: 24px;
position: fixed;
right: 0;
width: 100%;
z-index: 2;
}
.interstitial-wrapper {
max-width: 736px;
}
#details,
#main-content {
padding-bottom: 40px;
}
#details {
padding-top: 5.5vh;
}
button.small-link {
color: var(--google-blue-600);
}
}
@media (max-width: 420px) and (orientation: portrait),
(max-height: 560px) {
body {
margin: 0 auto;
}
button,
[dir='rtl'] button,
button.small-link {
font-family: Roboto-Regular,Helvetica;
font-size: .933em;
margin: 6px 0;
transform: translatez(0);
}
.nav-wrapper {
box-sizing: border-box;
padding-bottom: 8px;
width: 100%;
}
#details {
box-sizing: border-box;
height: auto;
margin: 0;
opacity: 1;
transition: opacity 250ms cubic-bezier(0.4, 0, 0.2, 1);
}
#details.hidden,
#main-content.hidden {
display: block;
height: 0;
opacity: 0;
overflow: hidden;
padding-bottom: 0;
transition: none;
}
h1 {
font-size: 1.5em;
margin-bottom: 8px;
}
.icon {
margin-bottom: 5.69vh;
}
.interstitial-wrapper {
box-sizing: border-box;
margin: 7vh auto 12px;
padding: 0 24px;
position: relative;
}
.interstitial-wrapper p {
font-size: .95em;
line-height: 1.61em;
margin-top: 8px;
}
#main-content {
margin: 0;
transition: opacity 100ms cubic-bezier(0.4, 0, 0.2, 1);
}
.small-link {
border: 0;
}
.suggested-left > #control-buttons,
.suggested-right > #control-buttons {
float: none;
margin: 0;
}
}
@media (min-width: 421px) and (min-height: 500px) and (max-height: 560px) {
.interstitial-wrapper {
margin-top: 10vh;
}
}
@media (min-height: 400px) and (orientation:portrait) {
.interstitial-wrapper {
margin-bottom: 145px;
}
}
@media (min-height: 299px) {
.nav-wrapper {
padding-bottom: 16px;
}
}
@media (min-height: 500px) and (max-height: 650px) and (max-width: 414px) and
(orientation: portrait) {
.interstitial-wrapper {
margin-top: 7vh;
}
}
@media (min-height: 650px) and (max-width: 414px) and (orientation: portrait) {
.interstitial-wrapper {
margin-top: 10vh;
}
}
/* Small mobile screens. No fixed nav. */
@media (max-height: 400px) and (orientation: portrait),
(max-height: 239px) and (orientation: landscape),
(max-width: 419px) and (max-height: 399px) {
.interstitial-wrapper {
display: flex;
flex-direction: column;
margin-bottom: 0;
}
#details {
flex: 1 1 auto;
order: 0;
}
#main-content {
flex: 1 1 auto;
order: 0;
}
.nav-wrapper {
flex: 0 1 auto;
margin-top: 8px;
order: 1;
padding-left: 0;
padding-right: 0;
position: relative;
width: 100%;
}
button {
padding: 16px 24px;
}
button.small-link {
color: var(--google-blue-600);
}
}
@media (max-width: 239px) and (orientation: portrait) {
.nav-wrapper {
padding-left: 0;
padding-right: 0;
}
}
</style>
<style>/* Copyright 2013 The Chromium Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file. */
/* Don't use the main frame div when the error is in a subframe. */
html[subframe] #main-frame-error {
display: none;
}
/* Don't use the subframe error div when the error is in a main frame. */
html:not([subframe]) #sub-frame-error {
display: none;
}
#diagnose-button {
float: none;
margin-bottom: 10px;
margin-inline-start: 0;
margin-top: 20px;
}
h1 {
margin-top: 0;
word-wrap: break-word;
}
h1 span {
font-weight: 500;
}
h2 {
color: var(--heading-color);
font-size: 1.2em;
font-weight: normal;
margin: 10px 0;
}
a {
text-decoration: none;
}
.icon {
-webkit-user-select: none;
display: inline-block;
}
.icon-generic {
/**
* Can't access chrome://theme/IDR_ERROR_NETWORK_GENERIC from an untrusted
* renderer process, so embed the resource manually.
*/
content: -webkit-image-set(
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEgAAABIAQMAAABvIyEEAAAABlBMVEUAAABTU1OoaSf/AAAAAXRSTlMAQObYZgAAAENJREFUeF7tzbEJACEQRNGBLeAasBCza2lLEGx0CxFGG9hBMDDxRy/72O9FMnIFapGylsu1fgoBdkXfUHLrQgdfrlJN1BdYBjQQm3UAAAAASUVORK5CYII=) 1x,
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJAAAACQAQMAAADdiHD7AAAABlBMVEUAAABTU1OoaSf/AAAAAXRSTlMAQObYZgAAAFJJREFUeF7t0cENgDAMQ9FwYgxG6WjpaIzCCAxQxVggFuDiCvlLOeRdHR9yzjncHVoq3npu+wQUrUuJHylSTmBaespJyJQoObUeyxDQb3bEm5Au81c0pSCD8HYAAAAASUVORK5CYII=) 2x);
}
.icon-offline {
content: -webkit-image-set(
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEgAAABIAQMAAABvIyEEAAAABlBMVEUAAABTU1OoaSf/AAAAAXRSTlMAQObYZgAAAGxJREFUeF7tyMEJwkAQRuFf5ipMKxYQiJ3Z2nSwrWwBA0+DQZcdxEOueaePp9+dQZFB7GpUcURSVU66yVNFj6LFICatThZB6r/ko/pbRpUgilY0Cbw5sNmb9txGXUKyuH7eV25x39DtJXUNPQGJtWFV+BT/QAAAAABJRU5ErkJggg==) 1x,
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJAAAACQBAMAAAAVaP+LAAAAGFBMVEUAAABTU1NNTU1TU1NPT09SUlJSUlJTU1O8B7DEAAAAB3RSTlMAoArVKvVgBuEdKgAAAJ1JREFUeF7t1TEOwyAMQNG0Q6/UE+RMXD9d/tC6womIFSL9P+MnAYOXeTIzMzMzMzMzaz8J9Ri6HoITmuHXhISE8nEh9yxDh55aCEUoTGbbQwjqHwIkRAEiIaG0+0AA9VBMaE89Rogeoww936MQrWdBr4GN/z0IAdQ6nQ/FIpRXDwHcA+JIJcQowQAlFUA0MfQpXLlVQfkzR4igS6ENjknm/wiaGhsAAAAASUVORK5CYII=) 2x);
position: relative;
}
.icon-disabled {
content: -webkit-image-set(
url(data:image/png;base64,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) 1x,
url(data:image/png;base64,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) 2x);
width: 112px;
}
.error-code {
display: block;
font-size: .8em;
}
#content-top {
margin: 20px;
}
#help-box-inner {
background-color: #f9f9f9;
border-top: 1px solid #EEE;
color: #444;
padding: 20px;
text-align: start;
}
.hidden {
display: none;
}
#suggestion {
margin-top: 15px;
}
#suggestions-list a {
color: var(--google-blue-600);
}
#suggestions-list p {
margin-block-end: 0;
}
#suggestions-list ul {
margin-top: 0;
}
.single-suggestion {
list-style-type: none;
padding-left: 0;
}
#short-suggestion {
margin-top: 5px;
}
#error-information-button {
content: url(data:image/svg+xml;base64,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);
height: 24px;
vertical-align: -.15em;
width: 24px;
}
.use-popup-container#error-information-popup-container
#error-information-popup {
align-items: center;
background-color: var(--popup-container-background-color);
display: flex;
height: 100%;
left: 0;
position: fixed;
top: 0;
width: 100%;
z-index: 100;
}
.use-popup-container#error-information-popup-container
#error-information-popup-content > p {
margin-bottom: 11px;
margin-inline-start: 20px;
}
.use-popup-container#error-information-popup-container #suggestions-list ul {
margin-inline-start: 15px;
}
.use-popup-container#error-information-popup-container
#error-information-popup-box {
background-color: var(--background-color);
left: 5%;
padding-bottom: 15px;
padding-top: 15px;
position: fixed;
width: 90%;
z-index: 101;
}
.use-popup-container#error-information-popup-container div.error-code {
margin-inline-start: 20px;
}
.use-popup-container#error-information-popup-container #suggestions-list p {
margin-inline-start: 20px;
}
:not(.use-popup-container)#error-information-popup-container
#error-information-popup-close {
display: none;
}
#error-information-popup-close {
margin-bottom: 0px;
margin-inline-end: 35px;
margin-top: 15px;
text-align: end;
}
.link-button {
color: rgb(66, 133, 244);
display: inline-block;
font-weight: bold;
text-transform: uppercase;
}
#sub-frame-error-details {
color: #8F8F8F;
/* Not done on mobile for performance reasons. */
text-shadow: 0 1px 0 rgba(255,255,255,0.3);
}
[jscontent=hostName],
[jscontent=failedUrl] {
overflow-wrap: break-word;
}
#search-container {
/* Prevents a space between controls. */
display: flex;
margin-top: 20px;
}
#search-box {
border: 1px solid #cdcdcd;
flex-grow: 1;
font-size: 1em;
height: 26px;
margin-right: 0;
padding: 1px 9px;
}
#search-box:focus {
border: 1px solid rgb(93, 154, 255);
outline: none;
}
#search-button {
border: none;
border-bottom-left-radius: 0;
border-top-left-radius: 0;
box-shadow: none;
display: flex;
height: 30px;
margin: 0;
padding: 0;
width: 60px;
}
#search-image {
content:
-webkit-image-set(
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAPCAQAAAB+HTb/AAAArElEQVR4Xn3NsUoCUBzG0XvB3U0chR4geo5qihpt6gkCx0bXFsMERWj2KWqIanAvmlUUoQapwU6g4l8H5bd9Z/iSPS0hu/RqZqrncBuzLl7U3Rn4cSpQFTeroejJl1Lgs7f4ceDPdeBMXYp86gaONYJkY83AnqHiGk9wHnjk16PKgo5N9BUCkzPf5j6M0PfuVg5MymoetFwoaKAlB26WdXAvJ7u5mezitqtkT//7Sv/u96CaLQAAAABJRU5ErkJggg==) 1x,
url(data:image/png;base64,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) 2x);
margin: auto;
}
.secondary-button {
background: #d9d9d9;
color: #696969;
margin-inline-end: 16px;
}
.snackbar {
background: #323232;
border-radius: 2px;
bottom: 24px;
box-sizing: border-box;
color: #fff;
font-size: .87em;
left: 24px;
max-width: 568px;
min-width: 288px;
opacity: 0;
padding: 16px 24px 12px;
position: fixed;
transform: translateY(90px);
will-change: opacity, transform;
z-index: 999;
}
.snackbar-show {
-webkit-animation:
show-snackbar .25s cubic-bezier(0.0, 0.0, 0.2, 1) forwards,
hide-snackbar .25s cubic-bezier(0.4, 0.0, 1, 1) forwards 5s;
}
@-webkit-keyframes show-snackbar {
100% {
opacity: 1;
transform: translateY(0);
}
}
@-webkit-keyframes hide-snackbar {
0% {
opacity: 1;
transform: translateY(0);
}
100% {
opacity: 0;
transform: translateY(90px);
}
}
.suggestions {
margin-top: 18px;
}
.suggestion-header {
font-weight: bold;
margin-bottom: 4px;
}
.suggestion-body {
color: #777;
}
/* Increase line height at higher resolutions. */
@media (min-width: 641px) and (min-height: 641px) {
#help-box-inner {
line-height: 18px;
}
}
/* Decrease padding at low sizes. */
@media (max-width: 640px), (max-height: 640px) {
h1 {
margin: 0 0 15px;
}
#content-top {
margin: 15px;
}
#help-box-inner {
padding: 20px;
}
.suggestions {
margin-top: 10px;
}
.suggestion-header {
margin-bottom: 0;
}
}
#download-link, #download-link-clicked {
margin-bottom: 30px;
margin-top: 30px;
}
#download-link-clicked {
color: #BBB;
}
#download-link:before, #download-link-clicked:before {
content: url(data:image/svg+xml;base64,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);
display: inline-block;
margin-inline-end: 4px;
vertical-align: -webkit-baseline-middle;
}
#download-link-clicked:before {
width: 0px;
opacity: 0;
}
#offline-content-list-visibility-card {
border: 1px solid white;
border-radius: 8px;
display: flex;
font-size: .8em;
justify-content: space-between;
line-height: 1;
}
#offline-content-list.list-hidden #offline-content-list-visibility-card {
border-color: rgb(218, 220, 224);
}
#offline-content-list-visibility-card > div {
padding: 1em;
}
#offline-content-list-title {
color: var(--google-gray-700);
}
#offline-content-list-show-text, #offline-content-list-hide-text {
color: rgb(66, 133, 244);
}
/* Hides the "hide" text div when the offline content list is collapsed/hidden
* and, alternatively, hides the "show" text div when the offline content list
* is expanded/shown.
*/
#offline-content-list.list-hidden #offline-content-list-hide-text,
#offline-content-list:not(.list-hidden) #offline-content-list-show-text {
display: none;
}
/* Controls the animation of the offline content list when it is expanded/shown.
*/
#offline-content-suggestions {
/* Max-height has to be set for the height animation to work. The chosen value
* is a little greater than the maximum height the list will have, when all
* suggestions have images, so that it is never clamped. This makes so that
* when the actual height is smaller then the animation is not as smooth.
*/
max-height: 27em;
transition: max-height 0.2s ease-in, visibility 0s 0.2s,
opacity 0.2s 0.2s linear;
}
/* Controls the animation of the offline content list when it is
* collapsed/hidden.
*/
#offline-content-list.list-hidden #offline-content-suggestions {
max-height: 0;
visibility: hidden;
opacity: 0;
transition: opacity 0.2s linear, visibility 0s 0.2s,
max-height 0.2s 0.2s ease-out;
}
#offline-content-list {
margin-inline-start: -5%;
width: 110%;
}
/* The selectors below adjust the "overflow" of the suggestion cards contents
* based on the same screen size based strategy used for the main frame, which
* is applied by the `interstitial-wrapper` class. */
@media (max-width: 420px) {
#offline-content-list {
margin-inline-start: -2.5%;
width: 105%;
}
}
@media (max-width: 420px) and (orientation: portrait),
(max-height: 560px) {
#offline-content-list {
margin-inline-start: -12px;
width: calc(100% + 24px);
}
}
.suggestion-with-image .offline-content-suggestion-thumbnail {
flex-basis: 8.2em;
flex-shrink: 0;
}
.suggestion-with-image .offline-content-suggestion-thumbnail > img {
height: 100%;
width: 100%;
}
.suggestion-with-image #offline-content-list:not(.is-rtl)
.offline-content-suggestion-thumbnail > img {
border-bottom-right-radius: 7px;
border-top-right-radius: 7px;
}
.suggestion-with-image #offline-content-list.is-rtl
.offline-content-suggestion-thumbnail > img {
border-bottom-left-radius: 7px;
border-top-left-radius: 7px;
}
.suggestion-with-icon .offline-content-suggestion-thumbnail {
align-items: center;
display: flex;
justify-content: center;
min-height: 4.2em;
min-width: 4.2em;
}
.suggestion-with-icon .offline-content-suggestion-thumbnail > div {
align-items: center;
background-color: rgb(241, 243, 244);
border-radius: 50%;
display: flex;
height: 2.3em;
justify-content: center;
width: 2.3em;
}
.suggestion-with-icon .offline-content-suggestion-thumbnail > div > img {
height: 1.45em;
width: 1.45em;
}
.offline-content-suggestion-favicon {
height: 1em;
margin-inline-end: 0.4em;
width: 1.4em;
}
.offline-content-suggestion-favicon > img {
height: 1.4em;
width: 1.4em;
}
.no-favicon .offline-content-suggestion-favicon {
display: none;
}
.image-video {
content: url(data:image/svg+xml;base64,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);
}
.image-music-note {
content: url(data:image/svg+xml;base64,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);
}
.image-earth {
content: url(data:image/svg+xml;base64,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);
}
.image-file {
content: url(data:image/svg+xml;base64,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);
}
.offline-content-suggestion-texts {
display: flex;
flex-direction: column;
justify-content: space-between;
line-height: 1.3;
padding: .9em;
width: 100%;
}
.offline-content-suggestion-title {
-webkit-box-orient: vertical;
-webkit-line-clamp: 3;
color: rgb(32, 33, 36);
display: -webkit-box;
font-size: 1.1em;
overflow: hidden;
text-overflow: ellipsis;
}
div.offline-content-suggestion {
align-items: stretch;
border: 1px solid rgb(218, 220, 224);
border-radius: 8px;
display: flex;
justify-content: space-between;
margin-bottom: .8em;
}
.suggestion-with-image {
flex-direction: row;
height: 8.2em;
max-height: 8.2em;
}
.suggestion-with-icon {
flex-direction: row-reverse;
height: 4.2em;
max-height: 4.2em;
}
.suggestion-with-icon .offline-content-suggestion-title {
-webkit-line-clamp: 1;
word-break: break-all;
}
.suggestion-with-icon .offline-content-suggestion-texts {
padding-inline-start: 0px;
}
.offline-content-suggestion-attribution-freshness {
color: rgb(95, 99, 104);
display: flex;
font-size: .8em;
line-height: 1.7em;
}
.offline-content-suggestion-attribution {
-webkit-box-orient: vertical;
-webkit-line-clamp: 1;
display: -webkit-box;
flex-shrink: 1;
margin-inline-end: 0.3em;
overflow-wrap: break-word;
overflow: hidden;
text-overflow: ellipsis;
word-break: break-all;
}
.no-attribution .offline-content-suggestion-attribution {
display: none;
}
.offline-content-suggestion-freshness:before {
content: '-';
display: inline-block;
flex-shrink: 0;
margin-inline-end: .1em;
margin-inline-start: .1em;
}
.no-attribution .offline-content-suggestion-freshness:before {
display: none;
}
.offline-content-suggestion-freshness {
flex-shrink: 0;
}
.suggestion-with-image .offline-content-suggestion-pin-spacer {
flex-shrink: 1;
flex-grow: 100;
}
.suggestion-with-image .offline-content-suggestion-pin {
content: url(data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz4KPCFET0NUWVBFIHN2ZyBQVUJMSUMgIi0vL1czQy8vRFREIFNWRyAxLjEvL0VOIiAiaHR0cDovL3d3dy53My5vcmcvR3JhcGhpY3MvU1ZHLzEuMS9EVEQvc3ZnMTEuZHRkIj4KPHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIiB2aWV3Qm94PSIwIDAgMjQgMjQiIHdpZHRoPSIyNCIgaGVpZ2h0PSIyNCI+CiAgICA8ZGVmcz4KICAgICAgICA8cGF0aCBpZD0iYSIgZD0iTTAgMGgyNHYyNEgwVjB6Ii8+CiAgICA8L2RlZnM+CiAgICA8Y2xpcFBhdGggaWQ9ImIiPgogICAgICAgIDx1c2UgeGxpbms6aHJlZj0iI2EiIG92ZXJmbG93PSJ2aXNpYmxlIi8+CiAgICA8L2NsaXBQYXRoPgogICAgPHBhdGggY2xpcC1wYXRoPSJ1cmwoI2IpIiBkPSJNMTIgMkM2LjUgMiAyIDYuNSAyIDEyczQuNSAxMCAxMCAxMCAxMC00LjUgMTAtMTBTMTcuNSAyIDEyIDJ6bTUgMTZIN3YtMmgxMHYyem0tNi43LTRMNyAxMC43bDEuNC0xLjQgMS45IDEuOSA1LjMtNS4zTDE3IDcuMyAxMC4zIDE0eiIgZmlsbD0icmdiKDE1NCwgMTYwLCAxNjYpIi8+Cjwvc3ZnPgo=);
flex-shrink: 0;
height: 1.4em;
margin-inline-start: .4em;
width: 1.4em;
}
/* Controls the animation (and a bit more) of the launch-downloads-home action
* button when the offline content list is expanded/shown.
*/
#offline-content-list-action {
text-align: center;
transition: visibility 0s 0.2s, opacity 0.2s 0.2s linear;
}
/* Controls the animation of the launch-downloads-home action button when the
* offline content list is collapsed/hidden.
*/
#offline-content-list.list-hidden #offline-content-list-action {
visibility: hidden;
opacity: 0;
transition: opacity 0.2s linear, visibility 0s 0.2s;
}
#cancel-save-page-button {
background-image: url(data:image/svg+xml;base64,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);
background-position: right 27px center;
background-repeat: no-repeat;
border: 1px solid var(--google-gray-300);
border-radius: 5px;
color: var(--google-gray-700);
margin-bottom: 26px;
padding-bottom: 16px;
padding-inline-end: 88px;
padding-inline-start: 16px;
padding-top: 16px;
text-align: start;
}
html[dir="rtl"] #cancel-save-page-button {
background-position: left 27px center;
}
#save-page-for-later-button {
display: flex;
justify-content: start;
}
#save-page-for-later-button a:before {
content: url(data:image/svg+xml;base64,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);
display: inline-block;
margin-inline-end: 4px;
vertical-align: -webkit-baseline-middle;
}
.hidden#save-page-for-later-button {
display: none;
}
/* Don't allow overflow when in a subframe. */
html[subframe] body {
overflow: hidden;
}
#sub-frame-error {
-webkit-align-items: center;
background-color: #DDD;
display: -webkit-flex;
-webkit-flex-flow: column;
height: 100%;
-webkit-justify-content: center;
left: 0;
position: absolute;
text-align: center;
top: 0;
transition: background-color .2s ease-in-out;
width: 100%;
}
#sub-frame-error:hover {
background-color: #EEE;
}
#sub-frame-error .icon-generic {
margin: 0 0 16px;
}
#sub-frame-error-details {
margin: 0 10px;
text-align: center;
visibility: hidden;
}
/* Show details only when hovering. */
#sub-frame-error:hover #sub-frame-error-details {
visibility: visible;
}
/* If the iframe is too small, always hide the error code. */
/* TODO(mmenke): See if overflow: no-display works better, once supported. */
@media (max-width: 200px), (max-height: 95px) {
#sub-frame-error-details {
display: none;
}
}
/* Adjust icon for small embedded frames in apps. */
@media (max-height: 100px) {
#sub-frame-error .icon-generic {
height: auto;
margin: 0;
padding-top: 0;
width: 25px;
}
}
/* details-button is special; it's a <button> element that looks like a link. */
#details-button {
box-shadow: none;
min-width: 0;
}
/* Styles for platform dependent separation of controls and details button. */
.suggested-left > #control-buttons,
.suggested-right > #details-button {
float: left;
}
.suggested-right > #control-buttons,
.suggested-left > #details-button {
float: right;
}
.suggested-left .secondary-button {
margin-inline-end: 0px;
margin-inline-start: 16px;
}
#details-button.singular {
float: none;
}
/* download-button shows both icon and text. */
#download-button {
padding-bottom: 4px;
padding-top: 4px;
position: relative;
}
#download-button:before {
background: -webkit-image-set(
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAQAAABKfvVzAAAAO0lEQVQ4y2NgGArgPxIY1YChsOE/LtBAmpYG0mxpIOSDBpKUo2lpIDZxNJCkHKqlYZAla3RAHQ1DFgAARRroHyLNTwwAAAAASUVORK5CYII=) 1x,
url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAQAAAD9CzEMAAAAZElEQVRYw+3Ruw3AMAwDUY3OzZUmRRD4E9iim9wNwAdbEURHyk4AAAAATiCVK8lLyPsKeT9K3lsownnunfkPxO78hKiYHxBV8x2icr5BVM+/CMf8g3DN34Rzns6ViwHUAUQ/6wIAd5Km7l6c8AAAAABJRU5ErkJggg==) 2x)
no-repeat;
content: '';
display: inline-block;
width: 24px;
height: 24px;
margin-inline-end: 4px;
margin-inline-start: -4px;
vertical-align: middle;
}
#download-button:disabled {
background: rgb(180, 206, 249);
color: rgb(255, 255, 255);
}
/*
TODO(https://crbug.com/852872): UI for offline suggested content is incomplete.
*/
.suggested-thumbnail {
width: 25vw;
height: 25vw;
}
/* Alternate dino page button styles */
#control-buttons .reload-button-alternate:disabled {
background: #ccc;
color: #fff;
font-size: 14px;
height: 48px;
}
#buttons::after {
clear: both;
content: '';
display: block;
width: 100%;
}
/* Offline page */
.offline {
transition: filter 1.5s cubic-bezier(0.65, 0.05, 0.36, 1),
background-color 1.5s cubic-bezier(0.65, 0.05, 0.36, 1);
will-change: filter, background-color;
}
.offline body {
transition: background-color 1.5s cubic-bezier(0.65, 0.05, 0.36, 1);
}
.offline #main-message > p {
display: none;
}
/* iOS WKWebView inverts the background color set at the HTML level
whereas Blink does not. */
.offline.inverted {
filter: invert(1);
background-color: #000;
}
.offline.inverted body {
background-color: #fff;
}
.offline .interstitial-wrapper {
color: var(--text-color);
font-size: 1em;
line-height: 1.55;
margin: 0 auto;
max-width: 600px;
padding-top: 100px;
width: 100%;
}
.offline .runner-container {
direction: ltr;
height: 150px;
max-width: 600px;
overflow: hidden;
position: absolute;
top: 35px;
width: 44px;
}
.offline .runner-canvas {
height: 150px;
max-width: 600px;
opacity: 1;
overflow: hidden;
position: absolute;
top: 0;
z-index: 10;
}
.offline .controller {
background: rgba(247,247,247, .1);
height: 100vh;
left: 0;
position: absolute;
top: 0;
width: 100vw;
z-index: 9;
}
#offline-resources {
display: none;
}
#offline-instruction {
image-rendering: pixelated;
left: 0;
margin: auto;
position: absolute;
right: 0;
top: 60px;
width: fit-content;
}
@media (max-width: 420px) {
#download-button {
padding-bottom: 12px;
padding-top: 12px;
}
.suggested-left > #control-buttons,
.suggested-right > #control-buttons {
float: none;
}
.snackbar {
left: 0;
bottom: 0;
width: 100%;
border-radius: 0;
}
}
@media (max-height: 350px) {
h1 {
margin: 0 0 15px;
}
.icon-offline {
margin: 0 0 10px;
}
.interstitial-wrapper {
margin-top: 5%;
}
.nav-wrapper {
margin-top: 30px;
}
}
@media (min-width: 420px) and (max-width: 736px) and
(min-height: 240px) and (max-height: 420px) and
(orientation:landscape) {
.interstitial-wrapper {
margin-bottom: 100px;
}
}
@media (max-width: 360px) and (max-height: 480px) {
.offline .interstitial-wrapper {
padding-top: 60px;
}
.offline .runner-container {
top: 8px;
}
}
@media (min-height: 240px) and (orientation: landscape) {
.offline .interstitial-wrapper {
margin-bottom: 90px;
}
.icon-offline {
margin-bottom: 20px;
}
}
@media (max-height: 320px) and (orientation: landscape) {
.icon-offline {
margin-bottom: 0;
}
.offline .runner-container {
top: 10px;
}
}
@media (max-width: 240px) {
button {
padding-left: 12px;
padding-right: 12px;
}
.interstitial-wrapper {
overflow: inherit;
padding: 0 8px;
}
}
@media (max-width: 120px) {
button {
width: auto;
}
}
.arcade-mode,
.arcade-mode .runner-container,
.arcade-mode .runner-canvas {
image-rendering: pixelated;
max-width: 100%;
overflow: hidden;
}
.arcade-mode #buttons,
.arcade-mode #main-content {
opacity: 0;
overflow: hidden;
}
.arcade-mode .interstitial-wrapper {
height: 100vh;
max-width: 100%;
overflow: hidden;
}
.arcade-mode .runner-container {
left: 0;
margin: auto;
right: 0;
transform-origin: top center;
transition: transform 250ms cubic-bezier(0.4, 0.0, 1, 1) .4s;
z-index: 2;
}
@media (prefers-color-scheme: dark) {
.icon {
filter: invert(1);
}
.offline .runner-canvas {
filter: invert(1);
}
.offline.inverted {
filter: invert(0);
background-color: var(--background-color);
}
.offline.inverted body {
background-color: #fff;
}
#suggestions-list a {
color: var(--link-color);
}
#error-information-button {
filter: invert(0.6);
}
}
</style>
<script>// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This is the shared code for security interstitials. It is used for both SSL
// interstitials and Safe Browsing interstitials.
// Should match security_interstitials::SecurityInterstitialCommand
/** @enum| {string} */
var SecurityInterstitialCommandId = {
CMD_DONT_PROCEED: 0,
CMD_PROCEED: 1,
// Ways for user to get more information
CMD_SHOW_MORE_SECTION: 2,
CMD_OPEN_HELP_CENTER: 3,
CMD_OPEN_DIAGNOSTIC: 4,
// Primary button actions
CMD_RELOAD: 5,
CMD_OPEN_DATE_SETTINGS: 6,
CMD_OPEN_LOGIN: 7,
// Safe Browsing Extended Reporting
CMD_DO_REPORT: 8,
CMD_DONT_REPORT: 9,
CMD_OPEN_REPORTING_PRIVACY: 10,
CMD_OPEN_WHITEPAPER: 11,
// Report a phishing error.
CMD_REPORT_PHISHING_ERROR: 12
};
var HIDDEN_CLASS = 'hidden';
/**
* A convenience method for sending commands to the parent page.
* @param {string} cmd The command to send.
*/
function sendCommand(cmd) {
if (window.certificateErrorPageController) {
switch (cmd) {
case SecurityInterstitialCommandId.CMD_DONT_PROCEED:
certificateErrorPageController.dontProceed();
break;
case SecurityInterstitialCommandId.CMD_PROCEED:
certificateErrorPageController.proceed();
break;
case SecurityInterstitialCommandId.CMD_SHOW_MORE_SECTION:
certificateErrorPageController.showMoreSection();
break;
case SecurityInterstitialCommandId.CMD_OPEN_HELP_CENTER:
certificateErrorPageController.openHelpCenter();
break;
case SecurityInterstitialCommandId.CMD_OPEN_DIAGNOSTIC:
certificateErrorPageController.openDiagnostic();
break;
case SecurityInterstitialCommandId.CMD_RELOAD:
certificateErrorPageController.reload();
break;
case SecurityInterstitialCommandId.CMD_OPEN_DATE_SETTINGS:
certificateErrorPageController.openDateSettings();
break;
case SecurityInterstitialCommandId.CMD_OPEN_LOGIN:
certificateErrorPageController.openLogin();
break;
case SecurityInterstitialCommandId.CMD_DO_REPORT:
certificateErrorPageController.doReport();
break;
case SecurityInterstitialCommandId.CMD_DONT_REPORT:
certificateErrorPageController.dontReport();
break;
case SecurityInterstitialCommandId.CMD_OPEN_REPORTING_PRIVACY:
certificateErrorPageController.openReportingPrivacy();
break;
case SecurityInterstitialCommandId.CMD_OPEN_WHITEPAPER:
certificateErrorPageController.openWhitepaper();
break;
case SecurityInterstitialCommandId.CMD_REPORT_PHISHING_ERROR:
certificateErrorPageController.reportPhishingError();
break;
}
return;
}
//
window.domAutomationController.send(cmd);
//
//
}
/**
* Call this to stop clicks on <a href="#"> links from scrolling to the top of
* the page (and possibly showing a # in the link).
*/
function preventDefaultOnPoundLinkClicks() {
document.addEventListener('click', function(e) {
var anchor = findAncestor(/** @type {Node} */ (e.target), function(el) {
return el.tagName == 'A';
});
// Use getAttribute() to prevent URL normalization.
if (anchor && anchor.getAttribute('href') == '#')
e.preventDefault();
});
}
</script>
<script>// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
var mobileNav = false;
/**
* For small screen mobile the navigation buttons are moved
* below the advanced text.
*/
function onResize() {
var helpOuterBox = document.querySelector('#details');
var mainContent = document.querySelector('#main-content');
var mediaQuery = '(min-width: 240px) and (max-width: 420px) and ' +
'(min-height: 401px), ' +
'(max-height: 560px) and (min-height: 240px) and ' +
'(min-width: 421px)';
var detailsHidden = helpOuterBox.classList.contains(HIDDEN_CLASS);
var runnerContainer = document.querySelector('.runner-container');
// Check for change in nav status.
if (mobileNav != window.matchMedia(mediaQuery).matches) {
mobileNav = !mobileNav;
// Handle showing the top content / details sections according to state.
if (mobileNav) {
mainContent.classList.toggle(HIDDEN_CLASS, !detailsHidden);
helpOuterBox.classList.toggle(HIDDEN_CLASS, detailsHidden);
if (runnerContainer) {
runnerContainer.classList.toggle(HIDDEN_CLASS, !detailsHidden);
}
} else if (!detailsHidden) {
// Non mobile nav with visible details.
mainContent.classList.remove(HIDDEN_CLASS);
helpOuterBox.classList.remove(HIDDEN_CLASS);
if (runnerContainer) {
runnerContainer.classList.remove(HIDDEN_CLASS);
}
}
}
}
function setupMobileNav() {
window.addEventListener('resize', onResize);
onResize();
}
document.addEventListener('DOMContentLoaded', setupMobileNav);
</script>
<script>// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Decodes a UTF16 string that is encoded as base64.
function decodeUTF16Base64ToString(encoded_text) {
var data = atob(encoded_text);
var result = '';
for (var i = 0; i < data.length; i += 2) {
result +=
String.fromCharCode(data.charCodeAt(i) * 256 + data.charCodeAt(i + 1));
}
return result;
}
function toggleHelpBox() {
var helpBoxOuter = document.getElementById('details');
helpBoxOuter.classList.toggle(HIDDEN_CLASS);
var detailsButton = document.getElementById('details-button');
if (helpBoxOuter.classList.contains(HIDDEN_CLASS))
detailsButton.innerText = detailsButton.detailsText;
else
detailsButton.innerText = detailsButton.hideDetailsText;
// Details appears over the main content on small screens.
if (mobileNav) {
document.getElementById('main-content').classList.toggle(HIDDEN_CLASS);
var runnerContainer = document.querySelector('.runner-container');
if (runnerContainer) {
runnerContainer.classList.toggle(HIDDEN_CLASS);
}
}
}
function diagnoseErrors() {
//
if (window.errorPageController)
errorPageController.diagnoseErrorsButtonClick();
//
//
}
// Subframes use a different layout but the same html file. This is to make it
// easier to support platforms that load the error page via different
// mechanisms (Currently just iOS).
if (window.top.location != window.location)
document.documentElement.setAttribute('subframe', '');
// Re-renders the error page using |strings| as the dictionary of values.
// Used by NetErrorTabHelper to update DNS error pages with probe results.
function updateForDnsProbe(strings) {
var context = new JsEvalContext(strings);
jstProcess(context, document.getElementById('t'));
onDocumentLoadOrUpdate();
}
// Given the classList property of an element, adds an icon class to the list
// and removes the previously-
function updateIconClass(classList, newClass) {
var oldClass;
if (classList.hasOwnProperty('last_icon_class')) {
oldClass = classList['last_icon_class'];
if (oldClass == newClass)
return;
}
classList.add(newClass);
if (oldClass !== undefined)
classList.remove(oldClass);
classList['last_icon_class'] = newClass;
if (newClass == 'icon-offline') {
document.firstElementChild.classList.add('offline');
new Runner('.interstitial-wrapper');
} else {
document.body.classList.add('neterror');
}
}
// Does a search using |baseSearchUrl| and the text in the search box.
function search(baseSearchUrl) {
var searchTextNode = document.getElementById('search-box');
document.location = baseSearchUrl + searchTextNode.value;
return false;
}
// Use to track clicks on elements generated by the navigation correction
// service. If |trackingId| is negative, the element does not come from the
// correction service.
function trackClick(trackingId) {
// This can't be done with XHRs because XHRs are cancelled on navigation
// start, and because these are cross-site requests.
if (trackingId >= 0 && errorPageController)
errorPageController.trackClick(trackingId);
}
// Called when an <a> tag generated by the navigation correction service is
// clicked. Separate function from trackClick so the resources don't have to
// be updated if new data is added to jstdata.
function linkClicked(jstdata) {
trackClick(jstdata.trackingId);
}
// Implements button clicks. This function is needed during the transition
// between implementing these in trunk chromium and implementing them in
// iOS.
function reloadButtonClick(url) {
if (window.errorPageController) {
errorPageController.reloadButtonClick();
} else {
location = url;
}
}
function downloadButtonClick() {
if (window.errorPageController) {
errorPageController.downloadButtonClick();
var downloadButton = document.getElementById('download-button');
downloadButton.disabled = true;
downloadButton.textContent = downloadButton.disabledText;
document.getElementById('download-link-wrapper')
.classList.add(HIDDEN_CLASS);
document.getElementById('download-link-clicked-wrapper')
.classList.remove(HIDDEN_CLASS);
}
}
function detailsButtonClick() {
if (window.errorPageController)
errorPageController.detailsButtonClick();
}
/**
* Replace the reload button with the Google cached copy suggestion.
*/
function setUpCachedButton(buttonStrings) {
var reloadButton = document.getElementById('reload-button');
reloadButton.textContent = buttonStrings.msg;
var url = buttonStrings.cacheUrl;
var trackingId = buttonStrings.trackingId;
reloadButton.onclick = function(e) {
e.preventDefault();
trackClick(trackingId);
if (window.errorPageController) {
errorPageController.trackCachedCopyButtonClick();
}
location = url;
};
reloadButton.style.display = '';
}
var primaryControlOnLeft = true;
//
function setAutoFetchState(scheduled, can_schedule) {
document.getElementById('cancel-save-page-button')
.classList.toggle(HIDDEN_CLASS, !scheduled);
document.getElementById('save-page-for-later-button')
.classList.toggle(HIDDEN_CLASS, scheduled || !can_schedule);
}
function savePageLaterClick() {
errorPageController.savePageForLater();
// savePageForLater will eventually trigger a call to setAutoFetchState() when
// it completes.
}
function cancelSavePageClick() {
errorPageController.cancelSavePage();
// setAutoFetchState is not called in response to cancelSavePage(), so do it
// now.
setAutoFetchState(false, true);
}
function toggleErrorInformationPopup() {
document.getElementById('error-information-popup-container')
.classList.toggle(HIDDEN_CLASS);
}
function launchOfflineItem(itemID, name_space) {
errorPageController.launchOfflineItem(itemID, name_space);
}
function launchDownloadsPage() {
errorPageController.launchDownloadsPage();
}
function getIconForSuggestedItem(item) {
// Note: |item.content_type| contains the enum values from
// chrome::mojom::AvailableContentType.
switch (item.content_type) {
case 1: // kVideo
return 'image-video';
case 2: // kAudio
return 'image-music-note';
case 0: // kPrefetchedPage
case 3: // kOtherPage
return 'image-earth';
}
return 'image-file';
}
function getSuggestedContentDiv(item, index) {
// Note: See AvailableContentToValue in available_offline_content_helper.cc
// for the data contained in an |item|.
// TODO(carlosk): Present |snippet_base64| when that content becomes
// available.
var thumbnail = '';
var extraContainerClasses = [];
// html_inline.py will try to replace src attributes with data URIs using a
// simple regex. The following is obfuscated slightly to avoid that.
var src = 'src';
if (item.thumbnail_data_uri) {
extraContainerClasses.push('suggestion-with-image');
thumbnail = `<img ${src}="${item.thumbnail_data_uri}">`;
} else {
extraContainerClasses.push('suggestion-with-icon');
iconClass = getIconForSuggestedItem(item);
thumbnail = `<div><img class="${iconClass}"></div>`;
}
var favicon = '';
if (item.favicon_data_uri) {
favicon = `<img ${src}="${item.favicon_data_uri}">`;
} else {
extraContainerClasses.push('no-favicon');
}
if (!item.attribution_base64)
extraContainerClasses.push('no-attribution');
return `
<div class="offline-content-suggestion ${extraContainerClasses.join(' ')}"
onclick="launchOfflineItem('${item.ID}', '${item.name_space}')">
<div class="offline-content-suggestion-texts">
<div id="offline-content-suggestion-title-${index}"
class="offline-content-suggestion-title">
</div>
<div class="offline-content-suggestion-attribution-freshness">
<div id="offline-content-suggestion-favicon-${index}"
class="offline-content-suggestion-favicon">
${favicon}
</div>
<div id="offline-content-suggestion-attribution-${index}"
class="offline-content-suggestion-attribution">
</div>
<div class="offline-content-suggestion-freshness">
${item.date_modified}
</div>
<div class="offline-content-suggestion-pin-spacer"></div>
<div class="offline-content-suggestion-pin"></div>
</div>
</div>
<div class="offline-content-suggestion-thumbnail">
${thumbnail}
</div>
</div>`;
}
// Populates a list of suggested offline content.
// Note: For security reasons all content downloaded from the web is considered
// unsafe and must be securely handled to be presented on the dino page. Images
// have already been safely re-encoded but textual content -- like title and
// attribution -- must be properly handled here.
function offlineContentAvailable(isShown, suggestions) {
if (!suggestions || !loadTimeData.valueExists('offlineContentList'))
return;
var suggestionsHTML = [];
for (var index = 0; index < suggestions.length; index++)
suggestionsHTML.push(getSuggestedContentDiv(suggestions[index], index));
document.getElementById('offline-content-suggestions').innerHTML =
suggestionsHTML.join('\n');
// Sets textual web content using |textContent| to make sure it's handled as
// plain text.
for (var index = 0; index < suggestions.length; index++) {
document.getElementById(`offline-content-suggestion-title-${index}`)
.textContent =
decodeUTF16Base64ToString(suggestions[index].title_base64);
document.getElementById(`offline-content-suggestion-attribution-${index}`)
.textContent =
decodeUTF16Base64ToString(suggestions[index].attribution_base64);
}
var contentListElement = document.getElementById('offline-content-list');
if (document.dir == 'rtl')
contentListElement.classList.add('is-rtl');
contentListElement.hidden = false;
// The list is configured as hidden by default. Show it if needed.
if (isShown)
toggleOfflineContentListVisibility(false);
}
function toggleOfflineContentListVisibility(updatePref) {
if (!loadTimeData.valueExists('offlineContentList'))
return;
var contentListElement = document.getElementById('offline-content-list');
var isVisible = !contentListElement.classList.toggle('list-hidden');
if (updatePref && window.errorPageController) {
errorPageController.listVisibilityChanged(isVisible);
}
}
// Called on document load, and from updateForDnsProbe().
function onDocumentLoadOrUpdate() {
var downloadButtonVisible = loadTimeData.valueExists('downloadButton') &&
loadTimeData.getValue('downloadButton').msg;
var detailsButton = document.getElementById('details-button');
//
// If offline content suggestions will be visible, the usual buttons will not
// be presented.
var offlineContentVisible =
loadTimeData.valueExists('suggestedOfflineContentPresentation');
if (offlineContentVisible) {
document.querySelector('.nav-wrapper').classList.add(HIDDEN_CLASS);
detailsButton.classList.add(HIDDEN_CLASS);
document.getElementById('download-link').hidden = !downloadButtonVisible;
document.getElementById('download-links-wrapper')
.classList.remove(HIDDEN_CLASS);
document.getElementById('error-information-popup-container')
.classList.add('use-popup-container', HIDDEN_CLASS)
document.getElementById('error-information-button')
.classList.remove(HIDDEN_CLASS);
}
var attemptAutoFetch = loadTimeData.valueExists('attemptAutoFetch') &&
loadTimeData.getValue('attemptAutoFetch');
var reloadButtonVisible = loadTimeData.valueExists('reloadButton') &&
loadTimeData.getValue('reloadButton').msg;
// Check for Google cached copy suggestion.
var cacheButtonVisible = false;
if (loadTimeData.valueExists('cacheButton')) {
setUpCachedButton(loadTimeData.getValue('cacheButton'));
cacheButtonVisible = true;
}
var reloadButton = document.getElementById('reload-button');
var downloadButton = document.getElementById('download-button');
if (reloadButton.style.display == 'none' &&
downloadButton.style.display == 'none') {
detailsButton.classList.add('singular');
}
// Show or hide control buttons.
var controlButtonDiv = document.getElementById('control-buttons');
controlButtonDiv.hidden = offlineContentVisible ||
!(reloadButtonVisible || downloadButtonVisible || cacheButtonVisible);
}
function onDocumentLoad() {
// Sets up the proper button layout for the current platform.
if (primaryControlOnLeft) {
buttons.classList.add('suggested-left');
} else {
buttons.classList.add('suggested-right');
}
onDocumentLoadOrUpdate();
}
document.addEventListener('DOMContentLoaded', onDocumentLoad);
</script>
<script>// Copyright (c) 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
(function() {
'use strict';
/**
* T-Rex runner.
* @param {string} outerContainerId Outer containing element id.
* @param {Object} opt_config
* @constructor
* @export
*/
function Runner(outerContainerId, opt_config) {
// Singleton
if (Runner.instance_) {
return Runner.instance_;
}
Runner.instance_ = this;
this.outerContainerEl = document.querySelector(outerContainerId);
this.containerEl = null;
this.snackbarEl = null;
// A div to intercept touch events. Only set while (playing && useTouch).
this.touchController = null;
this.config = opt_config || Runner.config;
// Logical dimensions of the container.
this.dimensions = Runner.defaultDimensions;
this.canvas = null;
this.canvasCtx = null;
this.tRex = null;
this.distanceMeter = null;
this.distanceRan = 0;
this.highestScore = 0;
this.syncHighestScore = false;
this.time = 0;
this.runningTime = 0;
this.msPerFrame = 1000 / FPS;
this.currentSpeed = this.config.SPEED;
this.obstacles = [];
this.activated = false; // Whether the easter egg has been activated.
this.playing = false; // Whether the game is currently in play state.
this.crashed = false;
this.paused = false;
this.inverted = false;
this.invertTimer = 0;
this.resizeTimerId_ = null;
this.playCount = 0;
// Sound FX.
this.audioBuffer = null;
this.soundFx = {};
// Global web audio context for playing sounds.
this.audioContext = null;
// Images.
this.images = {};
this.imagesLoaded = 0;
if (this.isDisabled()) {
this.setupDisabledRunner();
} else {
this.loadImages();
window['initializeEasterEggHighScore'] =
this.initializeHighScore.bind(this);
}
}
window['Runner'] = Runner;
/**
* Default game width.
* @const
*/
var DEFAULT_WIDTH = 600;
/**
* Frames per second.
* @const
*/
var FPS = 60;
/** @const */
var IS_HIDPI = window.devicePixelRatio > 1;
/** @const */
// iPads are returning "MacIntel" for iOS 13 (devices & simulators).
// Chrome on macOS also returns "MacIntel" for navigator.platform,
// but navigator.userAgent includes /Safari/.
// TODO(crbug.com/998999): Fix navigator.userAgent such that it reliably
// returns an agent string containing "CriOS".
var IS_IOS = /iPad|iPhone|iPod|MacIntel/.test(window.navigator.platform) &&
!(/Safari/.test(window.navigator.userAgent));
/** @const */
var IS_MOBILE = /Android/.test(window.navigator.userAgent) || IS_IOS;
/** @const */
var ARCADE_MODE_URL = 'chrome://dino/';
/**
* Default game configuration.
* @enum {number}
*/
Runner.config = {
ACCELERATION: 0.001,
BG_CLOUD_SPEED: 0.2,
BOTTOM_PAD: 10,
// Scroll Y threshold at which the game can be activated.
CANVAS_IN_VIEW_OFFSET: -10,
CLEAR_TIME: 3000,
CLOUD_FREQUENCY: 0.5,
GAMEOVER_CLEAR_TIME: 750,
GAP_COEFFICIENT: 0.6,
GRAVITY: 0.6,
INITIAL_JUMP_VELOCITY: 12,
INVERT_FADE_DURATION: 12000,
INVERT_DISTANCE: 700,
MAX_BLINK_COUNT: 3,
MAX_CLOUDS: 6,
MAX_OBSTACLE_LENGTH: 3,
MAX_OBSTACLE_DUPLICATION: 2,
MAX_SPEED: 13,
MIN_JUMP_HEIGHT: 35,
MOBILE_SPEED_COEFFICIENT: 1.2,
RESOURCE_TEMPLATE_ID: 'audio-resources',
SPEED: 6,
SPEED_DROP_COEFFICIENT: 3,
ARCADE_MODE_INITIAL_TOP_POSITION: 35,
ARCADE_MODE_TOP_POSITION_PERCENT: 0.1
};
/**
* Default dimensions.
* @enum {string}
*/
Runner.defaultDimensions = {
WIDTH: DEFAULT_WIDTH,
HEIGHT: 150
};
/**
* CSS class names.
* @enum {string}
*/
Runner.classes = {
ARCADE_MODE: 'arcade-mode',
CANVAS: 'runner-canvas',
CONTAINER: 'runner-container',
CRASHED: 'crashed',
ICON: 'icon-offline',
INVERTED: 'inverted',
SNACKBAR: 'snackbar',
SNACKBAR_SHOW: 'snackbar-show',
TOUCH_CONTROLLER: 'controller'
};
/**
* Sprite definition layout of the spritesheet.
* @enum {Object}
*/
Runner.spriteDefinition = {
LDPI: {
CACTUS_LARGE: {x: 332, y: 2},
CACTUS_SMALL: {x: 228, y: 2},
CLOUD: {x: 86, y: 2},
HORIZON: {x: 2, y: 54},
MOON: {x: 484, y: 2},
PTERODACTYL: {x: 134, y: 2},
RESTART: {x: 2, y: 2},
TEXT_SPRITE: {x: 655, y: 2},
TREX: {x: 848, y: 2},
STAR: {x: 645, y: 2}
},
HDPI: {
CACTUS_LARGE: {x: 652, y: 2},
CACTUS_SMALL: {x: 446, y: 2},
CLOUD: {x: 166, y: 2},
HORIZON: {x: 2, y: 104},
MOON: {x: 954, y: 2},
PTERODACTYL: {x: 260, y: 2},
RESTART: {x: 2, y: 2},
TEXT_SPRITE: {x: 1294, y: 2},
TREX: {x: 1678, y: 2},
STAR: {x: 1276, y: 2}
}
};
/**
* Sound FX. Reference to the ID of the audio tag on interstitial page.
* @enum {string}
*/
Runner.sounds = {
BUTTON_PRESS: 'offline-sound-press',
HIT: 'offline-sound-hit',
SCORE: 'offline-sound-reached'
};
/**
* Key code mapping.
* @enum {Object}
*/
Runner.keycodes = {
JUMP: {'38': 1, '32': 1}, // Up, spacebar
DUCK: {'40': 1}, // Down
RESTART: {'13': 1} // Enter
};
/**
* Runner event names.
* @enum {string}
*/
Runner.events = {
ANIM_END: 'webkitAnimationEnd',
CLICK: 'click',
KEYDOWN: 'keydown',
KEYUP: 'keyup',
POINTERDOWN: 'pointerdown',
POINTERUP: 'pointerup',
RESIZE: 'resize',
TOUCHEND: 'touchend',
TOUCHSTART: 'touchstart',
VISIBILITY: 'visibilitychange',
BLUR: 'blur',
FOCUS: 'focus',
LOAD: 'load'
};
Runner.prototype = {
/**
* Whether the easter egg has been disabled. CrOS enterprise enrolled devices.
* @return {boolean}
*/
isDisabled: function() {
return loadTimeData && loadTimeData.valueExists('disabledEasterEgg');
},
/**
* For disabled instances, set up a snackbar with the disabled message.
*/
setupDisabledRunner: function() {
this.containerEl = document.createElement('div');
this.containerEl.className = Runner.classes.SNACKBAR;
this.containerEl.textContent = loadTimeData.getValue('disabledEasterEgg');
this.outerContainerEl.appendChild(this.containerEl);
// Show notification when the activation key is pressed.
document.addEventListener(Runner.events.KEYDOWN, function(e) {
if (Runner.keycodes.JUMP[e.keyCode]) {
this.containerEl.classList.add(Runner.classes.SNACKBAR_SHOW);
document.querySelector('.icon').classList.add('icon-disabled');
}
}.bind(this));
},
/**
* Setting individual settings for debugging.
* @param {string} setting
* @param {*} value
*/
updateConfigSetting: function(setting, value) {
if (setting in this.config && value != undefined) {
this.config[setting] = value;
switch (setting) {
case 'GRAVITY':
case 'MIN_JUMP_HEIGHT':
case 'SPEED_DROP_COEFFICIENT':
this.tRex.config[setting] = value;
break;
case 'INITIAL_JUMP_VELOCITY':
this.tRex.setJumpVelocity(value);
break;
case 'SPEED':
this.setSpeed(value);
break;
}
}
},
/**
* Cache the appropriate image sprite from the page and get the sprite sheet
* definition.
*/
loadImages: function() {
if (IS_HIDPI) {
Runner.imageSprite = document.getElementById('offline-resources-2x');
this.spriteDef = Runner.spriteDefinition.HDPI;
} else {
Runner.imageSprite = document.getElementById('offline-resources-1x');
this.spriteDef = Runner.spriteDefinition.LDPI;
}
if (Runner.imageSprite.complete) {
this.init();
} else {
// If the images are not yet loaded, add a listener.
Runner.imageSprite.addEventListener(Runner.events.LOAD,
this.init.bind(this));
}
},
/**
* Load and decode base 64 encoded sounds.
*/
loadSounds: function() {
if (!IS_IOS) {
this.audioContext = new AudioContext();
var resourceTemplate =
document.getElementById(this.config.RESOURCE_TEMPLATE_ID).content;
for (var sound in Runner.sounds) {
var soundSrc =
resourceTemplate.getElementById(Runner.sounds[sound]).src;
soundSrc = soundSrc.substr(soundSrc.indexOf(',') + 1);
var buffer = decodeBase64ToArrayBuffer(soundSrc);
// Async, so no guarantee of order in array.
this.audioContext.decodeAudioData(buffer, function(index, audioData) {
this.soundFx[index] = audioData;
}.bind(this, sound));
}
}
},
/**
* Sets the game speed. Adjust the speed accordingly if on a smaller screen.
* @param {number} opt_speed
*/
setSpeed: function(opt_speed) {
var speed = opt_speed || this.currentSpeed;
// Reduce the speed on smaller mobile screens.
if (this.dimensions.WIDTH < DEFAULT_WIDTH) {
var mobileSpeed = speed * this.dimensions.WIDTH / DEFAULT_WIDTH *
this.config.MOBILE_SPEED_COEFFICIENT;
this.currentSpeed = mobileSpeed > speed ? speed : mobileSpeed;
} else if (opt_speed) {
this.currentSpeed = opt_speed;
}
},
/**
* Game initialiser.
*/
init: function() {
// Hide the static icon.
document.querySelector('.' + Runner.classes.ICON).style.visibility =
'hidden';
this.adjustDimensions();
this.setSpeed();
this.containerEl = document.createElement('div');
this.containerEl.className = Runner.classes.CONTAINER;
// Player canvas container.
this.canvas = createCanvas(this.containerEl, this.dimensions.WIDTH,
this.dimensions.HEIGHT, Runner.classes.PLAYER);
this.canvasCtx = this.canvas.getContext('2d');
this.canvasCtx.fillStyle = '#f7f7f7';
this.canvasCtx.fill();
Runner.updateCanvasScaling(this.canvas);
// Horizon contains clouds, obstacles and the ground.
this.horizon = new Horizon(this.canvas, this.spriteDef, this.dimensions,
this.config.GAP_COEFFICIENT);
// Distance meter
this.distanceMeter = new DistanceMeter(this.canvas,
this.spriteDef.TEXT_SPRITE, this.dimensions.WIDTH);
// Draw t-rex
this.tRex = new Trex(this.canvas, this.spriteDef.TREX);
this.outerContainerEl.appendChild(this.containerEl);
//
this.startListening();
this.update();
window.addEventListener(Runner.events.RESIZE,
this.debounceResize.bind(this));
},
/**
* Create the touch controller. A div that covers whole screen.
*/
createTouchController: function() {
this.touchController = document.createElement('div');
this.touchController.className = Runner.classes.TOUCH_CONTROLLER;
this.touchController.addEventListener(Runner.events.TOUCHSTART, this);
this.touchController.addEventListener(Runner.events.TOUCHEND, this);
this.outerContainerEl.appendChild(this.touchController);
},
/**
* Debounce the resize event.
*/
debounceResize: function() {
if (!this.resizeTimerId_) {
this.resizeTimerId_ =
setInterval(this.adjustDimensions.bind(this), 250);
}
},
/**
* Adjust game space dimensions on resize.
*/
adjustDimensions: function() {
clearInterval(this.resizeTimerId_);
this.resizeTimerId_ = null;
var boxStyles = window.getComputedStyle(this.outerContainerEl);
var padding = Number(boxStyles.paddingLeft.substr(0,
boxStyles.paddingLeft.length - 2));
this.dimensions.WIDTH = this.outerContainerEl.offsetWidth - padding * 2;
if (this.isArcadeMode()) {
this.dimensions.WIDTH = Math.min(DEFAULT_WIDTH, this.dimensions.WIDTH);
if (this.activated) {
this.setArcadeModeContainerScale();
}
}
// Redraw the elements back onto the canvas.
if (this.canvas) {
this.canvas.width = this.dimensions.WIDTH;
this.canvas.height = this.dimensions.HEIGHT;
Runner.updateCanvasScaling(this.canvas);
this.distanceMeter.calcXPos(this.dimensions.WIDTH);
this.clearCanvas();
this.horizon.update(0, 0, true);
this.tRex.update(0);
// Outer container and distance meter.
if (this.playing || this.crashed || this.paused) {
this.containerEl.style.width = this.dimensions.WIDTH + 'px';
this.containerEl.style.height = this.dimensions.HEIGHT + 'px';
this.distanceMeter.update(0, Math.ceil(this.distanceRan));
this.stop();
} else {
this.tRex.draw(0, 0);
}
// Game over panel.
if (this.crashed && this.gameOverPanel) {
this.gameOverPanel.updateDimensions(this.dimensions.WIDTH);
this.gameOverPanel.draw();
}
}
},
/**
* Play the game intro.
* Canvas container width expands out to the full width.
*/
playIntro: function() {
if (!this.activated && !this.crashed) {
this.playingIntro = true;
this.tRex.playingIntro = true;
//
// CSS animation definition.
var keyframes = '@-webkit-keyframes intro { ' +
'from { width:' + Trex.config.WIDTH + 'px }' +
'to { width: ' + this.dimensions.WIDTH + 'px }' +
'}';
document.styleSheets[0].insertRule(keyframes, 0);
this.containerEl.addEventListener(Runner.events.ANIM_END,
this.startGame.bind(this));
this.containerEl.style.webkitAnimation = 'intro .4s ease-out 1 both';
this.containerEl.style.width = this.dimensions.WIDTH + 'px';
this.setPlayStatus(true);
this.activated = true;
} else if (this.crashed) {
this.restart();
}
},
/**
* Update the game status to started.
*/
startGame: function() {
if (this.isArcadeMode()) {
this.setArcadeMode();
}
this.runningTime = 0;
this.playingIntro = false;
this.tRex.playingIntro = false;
this.containerEl.style.webkitAnimation = '';
this.playCount++;
// Handle tabbing off the page. Pause the current game.
document.addEventListener(Runner.events.VISIBILITY,
this.onVisibilityChange.bind(this));
window.addEventListener(Runner.events.BLUR,
this.onVisibilityChange.bind(this));
window.addEventListener(Runner.events.FOCUS,
this.onVisibilityChange.bind(this));
},
clearCanvas: function() {
this.canvasCtx.clearRect(0, 0, this.dimensions.WIDTH,
this.dimensions.HEIGHT);
},
/**
* Checks whether the canvas area is in the viewport of the browser
* through the current scroll position.
* @return boolean.
*/
isCanvasInView: function() {
return this.containerEl.getBoundingClientRect().top >
Runner.config.CANVAS_IN_VIEW_OFFSET;
},
/**
* Update the game frame and schedules the next one.
*/
update: function() {
this.updatePending = false;
var now = getTimeStamp();
var deltaTime = now - (this.time || now);
this.time = now;
if (this.playing) {
this.clearCanvas();
if (this.tRex.jumping) {
this.tRex.updateJump(deltaTime);
}
this.runningTime += deltaTime;
var hasObstacles = this.runningTime > this.config.CLEAR_TIME;
// First jump triggers the intro.
if (this.tRex.jumpCount == 1 && !this.playingIntro) {
this.playIntro();
}
// The horizon doesn't move until the intro is over.
if (this.playingIntro) {
this.horizon.update(0, this.currentSpeed, hasObstacles);
} else {
deltaTime = !this.activated ? 0 : deltaTime;
this.horizon.update(deltaTime, this.currentSpeed, hasObstacles,
this.inverted);
}
// Check for collisions.
var collision = hasObstacles &&
checkForCollision(this.horizon.obstacles[0], this.tRex);
if (!collision) {
this.distanceRan += this.currentSpeed * deltaTime / this.msPerFrame;
if (this.currentSpeed < this.config.MAX_SPEED) {
this.currentSpeed += this.config.ACCELERATION;
}
} else {
this.gameOver();
}
var playAchievementSound = this.distanceMeter.update(deltaTime,
Math.ceil(this.distanceRan));
if (playAchievementSound) {
this.playSound(this.soundFx.SCORE);
}
// Night mode.
if (this.invertTimer > this.config.INVERT_FADE_DURATION) {
this.invertTimer = 0;
this.invertTrigger = false;
this.invert();
} else if (this.invertTimer) {
this.invertTimer += deltaTime;
} else {
var actualDistance =
this.distanceMeter.getActualDistance(Math.ceil(this.distanceRan));
if (actualDistance > 0) {
this.invertTrigger = !(actualDistance %
this.config.INVERT_DISTANCE);
if (this.invertTrigger && this.invertTimer === 0) {
this.invertTimer += deltaTime;
this.invert();
}
}
}
}
if (this.playing || (!this.activated &&
this.tRex.blinkCount < Runner.config.MAX_BLINK_COUNT)) {
this.tRex.update(deltaTime);
this.scheduleNextUpdate();
}
},
/**
* Event handler.
*/
handleEvent: function(e) {
return (function(evtType, events) {
switch (evtType) {
case events.KEYDOWN:
case events.TOUCHSTART:
case events.POINTERDOWN:
this.onKeyDown(e);
break;
case events.KEYUP:
case events.TOUCHEND:
case events.POINTERUP:
this.onKeyUp(e);
break;
}
}.bind(this))(e.type, Runner.events);
},
/**
* Bind relevant key / mouse / touch listeners.
*/
startListening: function() {
// Keys.
document.addEventListener(Runner.events.KEYDOWN, this);
document.addEventListener(Runner.events.KEYUP, this);
// Touch / pointer.
this.containerEl.addEventListener(Runner.events.TOUCHSTART, this);
document.addEventListener(Runner.events.POINTERDOWN, this);
document.addEventListener(Runner.events.POINTERUP, this);
},
/**
* Remove all listeners.
*/
stopListening: function() {
document.removeEventListener(Runner.events.KEYDOWN, this);
document.removeEventListener(Runner.events.KEYUP, this);
if (this.touchController) {
this.touchController.removeEventListener(Runner.events.TOUCHSTART, this);
this.touchController.removeEventListener(Runner.events.TOUCHEND, this);
}
this.containerEl.removeEventListener(Runner.events.TOUCHSTART, this);
document.removeEventListener(Runner.events.POINTERDOWN, this);
document.removeEventListener(Runner.events.POINTERUP, this);
},
/**
* Process keydown.
* @param {Event} e
*/
onKeyDown: function(e) {
// Prevent native page scrolling whilst tapping on mobile.
if (IS_MOBILE && this.playing) {
e.preventDefault();
}
if (this.isCanvasInView()) {
if (!this.crashed && !this.paused) {
if (Runner.keycodes.JUMP[e.keyCode] ||
e.type == Runner.events.TOUCHSTART) {
e.preventDefault();
// Starting the game for the first time.
if (!this.playing) {
// Started by touch so create a touch controller.
if (!this.touchController && e.type == Runner.events.TOUCHSTART) {
this.createTouchController();
}
this.loadSounds();
this.setPlayStatus(true);
this.update();
if (window.errorPageController) {
errorPageController.trackEasterEgg();
}
}
// Start jump.
if (!this.tRex.jumping && !this.tRex.ducking) {
this.playSound(this.soundFx.BUTTON_PRESS);
this.tRex.startJump(this.currentSpeed);
}
} else if (this.playing && Runner.keycodes.DUCK[e.keyCode]) {
e.preventDefault();
if (this.tRex.jumping) {
// Speed drop, activated only when jump key is not pressed.
this.tRex.setSpeedDrop();
} else if (!this.tRex.jumping && !this.tRex.ducking) {
// Duck.
this.tRex.setDuck(true);
}
}
// iOS only triggers touchstart and no pointer events.
} else if (IS_IOS && this.crashed && e.type == Runner.events.TOUCHSTART &&
e.currentTarget == this.containerEl) {
this.handleGameOverClicks(e);
}
}
},
/**
* Process key up.
* @param {Event} e
*/
onKeyUp: function(e) {
var keyCode = String(e.keyCode);
var isjumpKey = Runner.keycodes.JUMP[keyCode] ||
e.type == Runner.events.TOUCHEND ||
e.type == Runner.events.POINTERUP;
if (this.isRunning() && isjumpKey) {
this.tRex.endJump();
} else if (Runner.keycodes.DUCK[keyCode]) {
this.tRex.speedDrop = false;
this.tRex.setDuck(false);
} else if (this.crashed) {
// Check that enough time has elapsed before allowing jump key to restart.
var deltaTime = getTimeStamp() - this.time;
if (this.isCanvasInView() &&
(Runner.keycodes.RESTART[keyCode] || this.isLeftClickOnCanvas(e) ||
(deltaTime >= this.config.GAMEOVER_CLEAR_TIME &&
Runner.keycodes.JUMP[keyCode]))) {
this.handleGameOverClicks(e);
}
} else if (this.paused && isjumpKey) {
// Reset the jump state
this.tRex.reset();
this.play();
}
},
/**
* Handle interactions on the game over screen state.
* A user is able to tap the high score twice to reset it.
* @param {Event} e
*/
handleGameOverClicks: function(e) {
e.preventDefault();
if (this.distanceMeter.hasClickedOnHighScore(e) && this.highestScore) {
if (this.distanceMeter.isHighScoreFlashing()) {
// Subsequent click, reset the high score.
this.saveHighScore(0, true);
this.distanceMeter.resetHighScore();
} else {
// First click, flash the high score.
this.distanceMeter.startHighScoreFlashing();
}
} else {
this.distanceMeter.cancelHighScoreFlashing();
this.restart();
}
},
/**
* Returns whether the event was a left click on canvas.
* On Windows right click is registered as a click.
* @param {Event} e
* @return {boolean}
*/
isLeftClickOnCanvas: function(e) {
return e.button != null && e.button < 2 &&
e.type == Runner.events.POINTERUP && e.target == this.canvas;
},
/**
* RequestAnimationFrame wrapper.
*/
scheduleNextUpdate: function() {
if (!this.updatePending) {
this.updatePending = true;
this.raqId = requestAnimationFrame(this.update.bind(this));
}
},
/**
* Whether the game is running.
* @return {boolean}
*/
isRunning: function() {
return !!this.raqId;
},
/**
* Set the initial high score as stored in the user's profile.
* @param {integer} highScore
*/
initializeHighScore: function(highScore) {
this.syncHighestScore = true;
highScore = Math.ceil(highScore);
if (highScore < this.highestScore) {
if (window.errorPageController) {
errorPageController.updateEasterEggHighScore(this.highestScore);
}
return;
}
this.highestScore = highScore;
this.distanceMeter.setHighScore(this.highestScore);
},
/**
* Sets the current high score and saves to the profile if available.
* @param {number} distanceRan Total distance ran.
* @param {boolean} opt_resetScore Whether to reset the score.
*/
saveHighScore: function(distanceRan, opt_resetScore) {
this.highestScore = Math.ceil(distanceRan);
this.distanceMeter.setHighScore(this.highestScore);
// Store the new high score in the profile.
if (this.syncHighestScore && window.errorPageController) {
if (opt_resetScore) {
errorPageController.resetEasterEggHighScore();
} else {
errorPageController.updateEasterEggHighScore(this.highestScore);
}
}
},
/**
* Game over state.
*/
gameOver: function() {
this.playSound(this.soundFx.HIT);
vibrate(200);
this.stop();
this.crashed = true;
this.distanceMeter.achievement = false;
this.tRex.update(100, Trex.status.CRASHED);
// Game over panel.
if (!this.gameOverPanel) {
this.gameOverPanel = new GameOverPanel(this.canvas,
this.spriteDef.TEXT_SPRITE, this.spriteDef.RESTART,
this.dimensions);
} else {
this.gameOverPanel.draw();
}
// Update the high score.
if (this.distanceRan > this.highestScore) {
this.saveHighScore(this.distanceRan);
}
// Reset the time clock.
this.time = getTimeStamp();
},
stop: function() {
this.setPlayStatus(false);
this.paused = true;
cancelAnimationFrame(this.raqId);
this.raqId = 0;
},
play: function() {
if (!this.crashed) {
this.setPlayStatus(true);
this.paused = false;
this.tRex.update(0, Trex.status.RUNNING);
this.time = getTimeStamp();
this.update();
}
},
restart: function() {
if (!this.raqId) {
this.playCount++;
this.runningTime = 0;
this.setPlayStatus(true);
this.paused = false;
this.crashed = false;
this.distanceRan = 0;
this.setSpeed(this.config.SPEED);
this.time = getTimeStamp();
this.containerEl.classList.remove(Runner.classes.CRASHED);
this.clearCanvas();
this.distanceMeter.reset(this.highestScore);
this.horizon.reset();
this.tRex.reset();
this.playSound(this.soundFx.BUTTON_PRESS);
this.invert(true);
this.bdayFlashTimer = null;
this.update();
}
},
setPlayStatus: function(isPlaying) {
if (this.touchController)
this.touchController.classList.toggle(HIDDEN_CLASS, !isPlaying);
this.playing = isPlaying;
},
/**
* Whether the game should go into arcade mode.
* @return {boolean}
*/
isArcadeMode: function() {
return document.title == ARCADE_MODE_URL;
},
/**
* Hides offline messaging for a fullscreen game only experience.
*/
setArcadeMode: function() {
document.body.classList.add(Runner.classes.ARCADE_MODE);
this.setArcadeModeContainerScale();
},
/**
* Sets the scaling for arcade mode.
*/
setArcadeModeContainerScale: function() {
var windowHeight = window.innerHeight;
var scaleHeight = windowHeight / this.dimensions.HEIGHT;
var scaleWidth = window.innerWidth / this.dimensions.WIDTH;
var scale = Math.max(1, Math.min(scaleHeight, scaleWidth));
var scaledCanvasHeight = this.dimensions.HEIGHT * scale;
// Positions the game container at 10% of the available vertical window
// height minus the game container height.
var translateY = Math.ceil(Math.max(0, (windowHeight - scaledCanvasHeight -
Runner.config.ARCADE_MODE_INITIAL_TOP_POSITION) *
Runner.config.ARCADE_MODE_TOP_POSITION_PERCENT)) *
window.devicePixelRatio;
//
this.containerEl.style.transform = 'scale(' + scale + ') translateY(' +
translateY + 'px)';
},
/**
* Pause the game if the tab is not in focus.
*/
onVisibilityChange: function(e) {
if (document.hidden || document.webkitHidden || e.type == 'blur' ||
document.visibilityState != 'visible') {
this.stop();
} else if (!this.crashed) {
this.tRex.reset();
this.play();
}
},
/**
* Play a sound.
* @param {SoundBuffer} soundBuffer
*/
playSound: function(soundBuffer) {
if (soundBuffer) {
var sourceNode = this.audioContext.createBufferSource();
sourceNode.buffer = soundBuffer;
sourceNode.connect(this.audioContext.destination);
sourceNode.start(0);
}
},
/**
* Inverts the current page / canvas colors.
* @param {boolean} Whether to reset colors.
*/
invert: function(reset) {
let htmlEl = document.firstElementChild;
if (reset) {
htmlEl.classList.toggle(Runner.classes.INVERTED,
false);
this.invertTimer = 0;
this.inverted = false;
} else {
this.inverted = htmlEl.classList.toggle(
Runner.classes.INVERTED, this.invertTrigger);
}
}
};
/**
* Updates the canvas size taking into
* account the backing store pixel ratio and
* the device pixel ratio.
*
* See article by Paul Lewis:
* http://www.html5rocks.com/en/tutorials/canvas/hidpi/
*
* @param {HTMLCanvasElement} canvas
* @param {number} opt_width
* @param {number} opt_height
* @return {boolean} Whether the canvas was scaled.
*/
Runner.updateCanvasScaling = function(canvas, opt_width, opt_height) {
var context = canvas.getContext('2d');
// Query the various pixel ratios
var devicePixelRatio = Math.floor(window.devicePixelRatio) || 1;
var backingStoreRatio = Math.floor(context.webkitBackingStorePixelRatio) || 1;
var ratio = devicePixelRatio / backingStoreRatio;
// Upscale the canvas if the two ratios don't match
if (devicePixelRatio !== backingStoreRatio) {
var oldWidth = opt_width || canvas.width;
var oldHeight = opt_height || canvas.height;
canvas.width = oldWidth * ratio;
canvas.height = oldHeight * ratio;
canvas.style.width = oldWidth + 'px';
canvas.style.height = oldHeight + 'px';
// Scale the context to counter the fact that we've manually scaled
// our canvas element.
context.scale(ratio, ratio);
return true;
} else if (devicePixelRatio == 1) {
// Reset the canvas width / height. Fixes scaling bug when the page is
// zoomed and the devicePixelRatio changes accordingly.
canvas.style.width = canvas.width + 'px';
canvas.style.height = canvas.height + 'px';
}
return false;
};
/**
* Get random number.
* @param {number} min
* @param {number} max
* @param {number}
*/
function getRandomNum(min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}
/**
* Vibrate on mobile devices.
* @param {number} duration Duration of the vibration in milliseconds.
*/
function vibrate(duration) {
if (IS_MOBILE && window.navigator.vibrate) {
window.navigator.vibrate(duration);
}
}
/**
* Create canvas element.
* @param {HTMLElement} container Element to append canvas to.
* @param {number} width
* @param {number} height
* @param {string} opt_classname
* @return {HTMLCanvasElement}
*/
function createCanvas(container, width, height, opt_classname) {
var canvas = document.createElement('canvas');
canvas.className = opt_classname ? Runner.classes.CANVAS + ' ' +
opt_classname : Runner.classes.CANVAS;
canvas.width = width;
canvas.height = height;
container.appendChild(canvas);
return canvas;
}
/**
* Decodes the base 64 audio to ArrayBuffer used by Web Audio.
* @param {string} base64String
*/
function decodeBase64ToArrayBuffer(base64String) {
var len = (base64String.length / 4) * 3;
var str = atob(base64String);
var arrayBuffer = new ArrayBuffer(len);
var bytes = new Uint8Array(arrayBuffer);
for (var i = 0; i < len; i++) {
bytes[i] = str.charCodeAt(i);
}
return bytes.buffer;
}
/**
* Return the current timestamp.
* @return {number}
*/
function getTimeStamp() {
return IS_IOS ? new Date().getTime() : performance.now();
}
//******************************************************************************
/**
* Game over panel.
* @param {!HTMLCanvasElement} canvas
* @param {Object} textImgPos
* @param {Object} restartImgPos
* @param {!Object} dimensions Canvas dimensions.
* @constructor
*/
function GameOverPanel(canvas, textImgPos, restartImgPos, dimensions) {
this.canvas = canvas;
this.canvasCtx = canvas.getContext('2d');
this.canvasDimensions = dimensions;
this.textImgPos = textImgPos;
this.restartImgPos = restartImgPos;
this.draw();
};
/**
* Dimensions used in the panel.
* @enum {number}
*/
GameOverPanel.dimensions = {
TEXT_X: 0,
TEXT_Y: 13,
TEXT_WIDTH: 191,
TEXT_HEIGHT: 11,
RESTART_WIDTH: 36,
RESTART_HEIGHT: 32
};
GameOverPanel.prototype = {
/**
* Update the panel dimensions.
* @param {number} width New canvas width.
* @param {number} opt_height Optional new canvas height.
*/
updateDimensions: function(width, opt_height) {
this.canvasDimensions.WIDTH = width;
if (opt_height) {
this.canvasDimensions.HEIGHT = opt_height;
}
},
/**
* Draw the panel.
*/
draw: function() {
var dimensions = GameOverPanel.dimensions;
var centerX = this.canvasDimensions.WIDTH / 2;
// Game over text.
var textSourceX = dimensions.TEXT_X;
var textSourceY = dimensions.TEXT_Y;
var textSourceWidth = dimensions.TEXT_WIDTH;
var textSourceHeight = dimensions.TEXT_HEIGHT;
var textTargetX = Math.round(centerX - (dimensions.TEXT_WIDTH / 2));
var textTargetY = Math.round((this.canvasDimensions.HEIGHT - 25) / 3);
var textTargetWidth = dimensions.TEXT_WIDTH;
var textTargetHeight = dimensions.TEXT_HEIGHT;
var restartSourceWidth = dimensions.RESTART_WIDTH;
var restartSourceHeight = dimensions.RESTART_HEIGHT;
var restartTargetX = centerX - (dimensions.RESTART_WIDTH / 2);
var restartTargetY = this.canvasDimensions.HEIGHT / 2;
if (IS_HIDPI) {
textSourceY *= 2;
textSourceX *= 2;
textSourceWidth *= 2;
textSourceHeight *= 2;
restartSourceWidth *= 2;
restartSourceHeight *= 2;
}
textSourceX += this.textImgPos.x;
textSourceY += this.textImgPos.y;
// Game over text from sprite.
this.canvasCtx.drawImage(Runner.imageSprite,
textSourceX, textSourceY, textSourceWidth, textSourceHeight,
textTargetX, textTargetY, textTargetWidth, textTargetHeight);
// Restart button.
this.canvasCtx.drawImage(Runner.imageSprite,
this.restartImgPos.x, this.restartImgPos.y,
restartSourceWidth, restartSourceHeight,
restartTargetX, restartTargetY, dimensions.RESTART_WIDTH,
dimensions.RESTART_HEIGHT);
}
};
//******************************************************************************
/**
* Check for a collision.
* @param {!Obstacle} obstacle
* @param {!Trex} tRex T-rex object.
* @param {HTMLCanvasContext} opt_canvasCtx Optional canvas context for drawing
* collision boxes.
* @return {Array<CollisionBox>}
*/
function checkForCollision(obstacle, tRex, opt_canvasCtx) {
var obstacleBoxXPos = Runner.defaultDimensions.WIDTH + obstacle.xPos;
// Adjustments are made to the bounding box as there is a 1 pixel white
// border around the t-rex and obstacles.
var tRexBox = new CollisionBox(
tRex.xPos + 1,
tRex.yPos + 1,
tRex.config.WIDTH - 2,
tRex.config.HEIGHT - 2);
var obstacleBox = new CollisionBox(
obstacle.xPos + 1,
obstacle.yPos + 1,
obstacle.typeConfig.width * obstacle.size - 2,
obstacle.typeConfig.height - 2);
// Debug outer box
if (opt_canvasCtx) {
drawCollisionBoxes(opt_canvasCtx, tRexBox, obstacleBox);
}
// Simple outer bounds check.
if (boxCompare(tRexBox, obstacleBox)) {
var collisionBoxes = obstacle.collisionBoxes;
var tRexCollisionBoxes = tRex.ducking ?
Trex.collisionBoxes.DUCKING : Trex.collisionBoxes.RUNNING;
// Detailed axis aligned box check.
for (var t = 0; t < tRexCollisionBoxes.length; t++) {
for (var i = 0; i < collisionBoxes.length; i++) {
// Adjust the box to actual positions.
var adjTrexBox =
createAdjustedCollisionBox(tRexCollisionBoxes[t], tRexBox);
var adjObstacleBox =
createAdjustedCollisionBox(collisionBoxes[i], obstacleBox);
var crashed = boxCompare(adjTrexBox, adjObstacleBox);
// Draw boxes for debug.
if (opt_canvasCtx) {
drawCollisionBoxes(opt_canvasCtx, adjTrexBox, adjObstacleBox);
}
if (crashed) {
return [adjTrexBox, adjObstacleBox];
}
}
}
}
return false;
};
/**
* Adjust the collision box.
* @param {!CollisionBox} box The original box.
* @param {!CollisionBox} adjustment Adjustment box.
* @return {CollisionBox} The adjusted collision box object.
*/
function createAdjustedCollisionBox(box, adjustment) {
return new CollisionBox(
box.x + adjustment.x,
box.y + adjustment.y,
box.width,
box.height);
};
/**
* Draw the collision boxes for debug.
*/
function drawCollisionBoxes(canvasCtx, tRexBox, obstacleBox) {
canvasCtx.save();
canvasCtx.strokeStyle = '#f00';
canvasCtx.strokeRect(tRexBox.x, tRexBox.y, tRexBox.width, tRexBox.height);
canvasCtx.strokeStyle = '#0f0';
canvasCtx.strokeRect(obstacleBox.x, obstacleBox.y,
obstacleBox.width, obstacleBox.height);
canvasCtx.restore();
};
/**
* Compare two collision boxes for a collision.
* @param {CollisionBox} tRexBox
* @param {CollisionBox} obstacleBox
* @return {boolean} Whether the boxes intersected.
*/
function boxCompare(tRexBox, obstacleBox) {
var crashed = false;
var tRexBoxX = tRexBox.x;
var tRexBoxY = tRexBox.y;
var obstacleBoxX = obstacleBox.x;
var obstacleBoxY = obstacleBox.y;
// Axis-Aligned Bounding Box method.
if (tRexBox.x < obstacleBoxX + obstacleBox.width &&
tRexBox.x + tRexBox.width > obstacleBoxX &&
tRexBox.y < obstacleBox.y + obstacleBox.height &&
tRexBox.height + tRexBox.y > obstacleBox.y) {
crashed = true;
}
return crashed;
};
//******************************************************************************
/**
* Collision box object.
* @param {number} x X position.
* @param {number} y Y Position.
* @param {number} w Width.
* @param {number} h Height.
*/
function CollisionBox(x, y, w, h) {
this.x = x;
this.y = y;
this.width = w;
this.height = h;
};
//******************************************************************************
/**
* Obstacle.
* @param {HTMLCanvasCtx} canvasCtx
* @param {Obstacle.type} type
* @param {Object} spritePos Obstacle position in sprite.
* @param {Object} dimensions
* @param {number} gapCoefficient Mutipler in determining the gap.
* @param {number} speed
* @param {number} opt_xOffset
*/
function Obstacle(canvasCtx, type, spriteImgPos, dimensions,
gapCoefficient, speed, opt_xOffset) {
this.canvasCtx = canvasCtx;
this.spritePos = spriteImgPos;
this.typeConfig = type;
this.gapCoefficient = gapCoefficient;
this.size = getRandomNum(1, Obstacle.MAX_OBSTACLE_LENGTH);
this.dimensions = dimensions;
this.remove = false;
this.xPos = dimensions.WIDTH + (opt_xOffset || 0);
this.yPos = 0;
this.width = 0;
this.collisionBoxes = [];
this.gap = 0;
this.speedOffset = 0;
// For animated obstacles.
this.currentFrame = 0;
this.timer = 0;
this.init(speed);
};
/**
* Coefficient for calculating the maximum gap.
* @const
*/
Obstacle.MAX_GAP_COEFFICIENT = 1.5;
/**
* Maximum obstacle grouping count.
* @const
*/
Obstacle.MAX_OBSTACLE_LENGTH = 3,
Obstacle.prototype = {
/**
* Initialise the DOM for the obstacle.
* @param {number} speed
*/
init: function(speed) {
this.cloneCollisionBoxes();
// Only allow sizing if we're at the right speed.
if (this.size > 1 && this.typeConfig.multipleSpeed > speed) {
this.size = 1;
}
this.width = this.typeConfig.width * this.size;
// Check if obstacle can be positioned at various heights.
if (Array.isArray(this.typeConfig.yPos)) {
var yPosConfig = IS_MOBILE ? this.typeConfig.yPosMobile :
this.typeConfig.yPos;
this.yPos = yPosConfig[getRandomNum(0, yPosConfig.length - 1)];
} else {
this.yPos = this.typeConfig.yPos;
}
this.draw();
// Make collision box adjustments,
// Central box is adjusted to the size as one box.
// ____ ______ ________
// _| |-| _| |-| _| |-|
// | |<->| | | |<--->| | | |<----->| |
// | | 1 | | | | 2 | | | | 3 | |
// |_|___|_| |_|_____|_| |_|_______|_|
//
if (this.size > 1) {
this.collisionBoxes[1].width = this.width - this.collisionBoxes[0].width -
this.collisionBoxes[2].width;
this.collisionBoxes[2].x = this.width - this.collisionBoxes[2].width;
}
// For obstacles that go at a different speed from the horizon.
if (this.typeConfig.speedOffset) {
this.speedOffset = Math.random() > 0.5 ? this.typeConfig.speedOffset :
-this.typeConfig.speedOffset;
}
this.gap = this.getGap(this.gapCoefficient, speed);
},
/**
* Draw and crop based on size.
*/
draw: function() {
var sourceWidth = this.typeConfig.width;
var sourceHeight = this.typeConfig.height;
if (IS_HIDPI) {
sourceWidth = sourceWidth * 2;
sourceHeight = sourceHeight * 2;
}
// X position in sprite.
var sourceX = (sourceWidth * this.size) * (0.5 * (this.size - 1)) +
this.spritePos.x;
// Animation frames.
if (this.currentFrame > 0) {
sourceX += sourceWidth * this.currentFrame;
}
this.canvasCtx.drawImage(Runner.imageSprite,
sourceX, this.spritePos.y,
sourceWidth * this.size, sourceHeight,
this.xPos, this.yPos,
this.typeConfig.width * this.size, this.typeConfig.height);
},
/**
* Obstacle frame update.
* @param {number} deltaTime
* @param {number} speed
*/
update: function(deltaTime, speed) {
if (!this.remove) {
if (this.typeConfig.speedOffset) {
speed += this.speedOffset;
}
this.xPos -= Math.floor((speed * FPS / 1000) * deltaTime);
// Update frame
if (this.typeConfig.numFrames) {
this.timer += deltaTime;
if (this.timer >= this.typeConfig.frameRate) {
this.currentFrame =
this.currentFrame == this.typeConfig.numFrames - 1 ?
0 : this.currentFrame + 1;
this.timer = 0;
}
}
this.draw();
if (!this.isVisible()) {
this.remove = true;
}
}
},
/**
* Calculate a random gap size.
* - Minimum gap gets wider as speed increses
* @param {number} gapCoefficient
* @param {number} speed
* @return {number} The gap size.
*/
getGap: function(gapCoefficient, speed) {
var minGap = Math.round(this.width * speed +
this.typeConfig.minGap * gapCoefficient);
var maxGap = Math.round(minGap * Obstacle.MAX_GAP_COEFFICIENT);
return getRandomNum(minGap, maxGap);
},
/**
* Check if obstacle is visible.
* @return {boolean} Whether the obstacle is in the game area.
*/
isVisible: function() {
return this.xPos + this.width > 0;
},
/**
* Make a copy of the collision boxes, since these will change based on
* obstacle type and size.
*/
cloneCollisionBoxes: function() {
var collisionBoxes = this.typeConfig.collisionBoxes;
for (var i = collisionBoxes.length - 1; i >= 0; i--) {
this.collisionBoxes[i] = new CollisionBox(collisionBoxes[i].x,
collisionBoxes[i].y, collisionBoxes[i].width,
collisionBoxes[i].height);
}
}
};
/**
* Obstacle definitions.
* minGap: minimum pixel space betweeen obstacles.
* multipleSpeed: Speed at which multiples are allowed.
* speedOffset: speed faster / slower than the horizon.
* minSpeed: Minimum speed which the obstacle can make an appearance.
*/
Obstacle.types = [
{
type: 'CACTUS_SMALL',
width: 17,
height: 35,
yPos: 105,
multipleSpeed: 4,
minGap: 120,
minSpeed: 0,
collisionBoxes: [
new CollisionBox(0, 7, 5, 27),
new CollisionBox(4, 0, 6, 34),
new CollisionBox(10, 4, 7, 14)
]
},
{
type: 'CACTUS_LARGE',
width: 25,
height: 50,
yPos: 90,
multipleSpeed: 7,
minGap: 120,
minSpeed: 0,
collisionBoxes: [
new CollisionBox(0, 12, 7, 38),
new CollisionBox(8, 0, 7, 49),
new CollisionBox(13, 10, 10, 38)
]
},
{
type: 'PTERODACTYL',
width: 46,
height: 40,
yPos: [ 100, 75, 50 ], // Variable height.
yPosMobile: [ 100, 50 ], // Variable height mobile.
multipleSpeed: 999,
minSpeed: 8.5,
minGap: 150,
collisionBoxes: [
new CollisionBox(15, 15, 16, 5),
new CollisionBox(18, 21, 24, 6),
new CollisionBox(2, 14, 4, 3),
new CollisionBox(6, 10, 4, 7),
new CollisionBox(10, 8, 6, 9)
],
numFrames: 2,
frameRate: 1000/6,
speedOffset: .8
}
];
//******************************************************************************
/**
* T-rex game character.
* @param {HTMLCanvas} canvas
* @param {Object} spritePos Positioning within image sprite.
* @constructor
*/
function Trex(canvas, spritePos) {
this.canvas = canvas;
this.canvasCtx = canvas.getContext('2d');
this.spritePos = spritePos;
this.xPos = 0;
this.yPos = 0;
// Position when on the ground.
this.groundYPos = 0;
this.currentFrame = 0;
this.currentAnimFrames = [];
this.blinkDelay = 0;
this.blinkCount = 0;
this.animStartTime = 0;
this.timer = 0;
this.msPerFrame = 1000 / FPS;
this.config = Trex.config;
// Current status.
this.status = Trex.status.WAITING;
this.jumping = false;
this.ducking = false;
this.jumpVelocity = 0;
this.reachedMinHeight = false;
this.speedDrop = false;
this.jumpCount = 0;
this.jumpspotX = 0;
this.init();
};
/**
* T-rex player config.
* @enum {number}
*/
Trex.config = {
DROP_VELOCITY: -5,
GRAVITY: 0.6,
HEIGHT: 47,
HEIGHT_DUCK: 25,
INIITAL_JUMP_VELOCITY: -10,
INTRO_DURATION: 1500,
MAX_JUMP_HEIGHT: 30,
MIN_JUMP_HEIGHT: 30,
SPEED_DROP_COEFFICIENT: 3,
SPRITE_WIDTH: 262,
START_X_POS: 50,
WIDTH: 44,
WIDTH_DUCK: 59
};
/**
* Used in collision detection.
* @type {Array<CollisionBox>}
*/
Trex.collisionBoxes = {
DUCKING: [
new CollisionBox(1, 18, 55, 25)
],
RUNNING: [
new CollisionBox(22, 0, 17, 16),
new CollisionBox(1, 18, 30, 9),
new CollisionBox(10, 35, 14, 8),
new CollisionBox(1, 24, 29, 5),
new CollisionBox(5, 30, 21, 4),
new CollisionBox(9, 34, 15, 4)
]
};
/**
* Animation states.
* @enum {string}
*/
Trex.status = {
CRASHED: 'CRASHED',
DUCKING: 'DUCKING',
JUMPING: 'JUMPING',
RUNNING: 'RUNNING',
WAITING: 'WAITING'
};
/**
* Blinking coefficient.
* @const
*/
Trex.BLINK_TIMING = 7000;
/**
* Animation config for different states.
* @enum {Object}
*/
Trex.animFrames = {
WAITING: {
frames: [44, 0],
msPerFrame: 1000 / 3
},
RUNNING: {
frames: [88, 132],
msPerFrame: 1000 / 12
},
CRASHED: {
frames: [220],
msPerFrame: 1000 / 60
},
JUMPING: {
frames: [0],
msPerFrame: 1000 / 60
},
DUCKING: {
frames: [264, 323],
msPerFrame: 1000 / 8
}
};
Trex.prototype = {
/**
* T-rex player initaliser.
* Sets the t-rex to blink at random intervals.
*/
init: function() {
this.groundYPos = Runner.defaultDimensions.HEIGHT - this.config.HEIGHT -
Runner.config.BOTTOM_PAD;
this.yPos = this.groundYPos;
this.minJumpHeight = this.groundYPos - this.config.MIN_JUMP_HEIGHT;
this.draw(0, 0);
this.update(0, Trex.status.WAITING);
},
/**
* Setter for the jump velocity.
* The approriate drop velocity is also set.
*/
setJumpVelocity: function(setting) {
this.config.INIITAL_JUMP_VELOCITY = -setting;
this.config.DROP_VELOCITY = -setting / 2;
},
/**
* Set the animation status.
* @param {!number} deltaTime
* @param {Trex.status} status Optional status to switch to.
*/
update: function(deltaTime, opt_status) {
this.timer += deltaTime;
// Update the status.
if (opt_status) {
this.status = opt_status;
this.currentFrame = 0;
this.msPerFrame = Trex.animFrames[opt_status].msPerFrame;
this.currentAnimFrames = Trex.animFrames[opt_status].frames;
if (opt_status == Trex.status.WAITING) {
this.animStartTime = getTimeStamp();
this.setBlinkDelay();
}
}
// Game intro animation, T-rex moves in from the left.
if (this.playingIntro && this.xPos < this.config.START_X_POS) {
this.xPos += Math.round((this.config.START_X_POS /
this.config.INTRO_DURATION) * deltaTime);
}
if (this.status == Trex.status.WAITING) {
this.blink(getTimeStamp());
} else {
this.draw(this.currentAnimFrames[this.currentFrame], 0);
}
// Update the frame position.
if (this.timer >= this.msPerFrame) {
this.currentFrame = this.currentFrame ==
this.currentAnimFrames.length - 1 ? 0 : this.currentFrame + 1;
this.timer = 0;
}
// Speed drop becomes duck if the down key is still being pressed.
if (this.speedDrop && this.yPos == this.groundYPos) {
this.speedDrop = false;
this.setDuck(true);
}
},
/**
* Draw the t-rex to a particular position.
* @param {number} x
* @param {number} y
*/
draw: function(x, y) {
var sourceX = x;
var sourceY = y;
var sourceWidth = this.ducking && this.status != Trex.status.CRASHED ?
this.config.WIDTH_DUCK : this.config.WIDTH;
var sourceHeight = this.config.HEIGHT;
var outputHeight = sourceHeight;
if (IS_HIDPI) {
sourceX *= 2;
sourceY *= 2;
sourceWidth *= 2;
sourceHeight *= 2;
}
// Adjustments for sprite sheet position.
sourceX += this.spritePos.x;
sourceY += this.spritePos.y;
// Ducking.
if (this.ducking && this.status != Trex.status.CRASHED) {
this.canvasCtx.drawImage(Runner.imageSprite, sourceX, sourceY,
sourceWidth, sourceHeight,
this.xPos, this.yPos,
this.config.WIDTH_DUCK, outputHeight);
} else {
// Crashed whilst ducking. Trex is standing up so needs adjustment.
if (this.ducking && this.status == Trex.status.CRASHED) {
this.xPos++;
}
// Standing / running
this.canvasCtx.drawImage(Runner.imageSprite, sourceX, sourceY,
sourceWidth, sourceHeight,
this.xPos, this.yPos,
this.config.WIDTH, outputHeight);
}
this.canvasCtx.globalAlpha = 1;
},
/**
* Sets a random time for the blink to happen.
*/
setBlinkDelay: function() {
this.blinkDelay = Math.ceil(Math.random() * Trex.BLINK_TIMING);
},
/**
* Make t-rex blink at random intervals.
* @param {number} time Current time in milliseconds.
*/
blink: function(time) {
var deltaTime = time - this.animStartTime;
if (deltaTime >= this.blinkDelay) {
this.draw(this.currentAnimFrames[this.currentFrame], 0);
if (this.currentFrame == 1) {
// Set new random delay to blink.
this.setBlinkDelay();
this.animStartTime = time;
this.blinkCount++;
}
}
},
/**
* Initialise a jump.
* @param {number} speed
*/
startJump: function(speed) {
if (!this.jumping) {
this.update(0, Trex.status.JUMPING);
// Tweak the jump velocity based on the speed.
this.jumpVelocity = this.config.INIITAL_JUMP_VELOCITY - (speed / 10);
this.jumping = true;
this.reachedMinHeight = false;
this.speedDrop = false;
}
},
/**
* Jump is complete, falling down.
*/
endJump: function() {
if (this.reachedMinHeight &&
this.jumpVelocity < this.config.DROP_VELOCITY) {
this.jumpVelocity = this.config.DROP_VELOCITY;
}
},
/**
* Update frame for a jump.
* @param {number} deltaTime
* @param {number} speed
*/
updateJump: function(deltaTime, speed) {
var msPerFrame = Trex.animFrames[this.status].msPerFrame;
var framesElapsed = deltaTime / msPerFrame;
// Speed drop makes Trex fall faster.
if (this.speedDrop) {
this.yPos += Math.round(this.jumpVelocity *
this.config.SPEED_DROP_COEFFICIENT * framesElapsed);
} else {
this.yPos += Math.round(this.jumpVelocity * framesElapsed);
}
this.jumpVelocity += this.config.GRAVITY * framesElapsed;
// Minimum height has been reached.
if (this.yPos < this.minJumpHeight || this.speedDrop) {
this.reachedMinHeight = true;
}
// Reached max height
if (this.yPos < this.config.MAX_JUMP_HEIGHT || this.speedDrop) {
this.endJump();
}
// Back down at ground level. Jump completed.
if (this.yPos > this.groundYPos) {
this.reset();
this.jumpCount++;
}
},
/**
* Set the speed drop. Immediately cancels the current jump.
*/
setSpeedDrop: function() {
this.speedDrop = true;
this.jumpVelocity = 1;
},
/**
* @param {boolean} isDucking.
*/
setDuck: function(isDucking) {
if (isDucking && this.status != Trex.status.DUCKING) {
this.update(0, Trex.status.DUCKING);
this.ducking = true;
} else if (this.status == Trex.status.DUCKING) {
this.update(0, Trex.status.RUNNING);
this.ducking = false;
}
},
/**
* Reset the t-rex to running at start of game.
*/
reset: function() {
this.yPos = this.groundYPos;
this.jumpVelocity = 0;
this.jumping = false;
this.ducking = false;
this.update(0, Trex.status.RUNNING);
this.midair = false;
this.speedDrop = false;
this.jumpCount = 0;
}
};
//******************************************************************************
/**
* Handles displaying the distance meter.
* @param {!HTMLCanvasElement} canvas
* @param {Object} spritePos Image position in sprite.
* @param {number} canvasWidth
* @constructor
*/
function DistanceMeter(canvas, spritePos, canvasWidth) {
this.canvas = canvas;
this.canvasCtx = canvas.getContext('2d');
this.image = Runner.imageSprite;
this.spritePos = spritePos;
this.x = 0;
this.y = 5;
this.currentDistance = 0;
this.maxScore = 0;
this.highScore = 0;
this.container = null;
this.digits = [];
this.achievement = false;
this.defaultString = '';
this.flashTimer = 0;
this.flashIterations = 0;
this.invertTrigger = false;
this.flashingRafId = null;
this.highScoreBounds = {};
this.highScoreFlashing = false;
this.config = DistanceMeter.config;
this.maxScoreUnits = this.config.MAX_DISTANCE_UNITS;
this.init(canvasWidth);
};
/**
* @enum {number}
*/
DistanceMeter.dimensions = {
WIDTH: 10,
HEIGHT: 13,
DEST_WIDTH: 11
};
/**
* Y positioning of the digits in the sprite sheet.
* X position is always 0.
* @type {Array<number>}
*/
DistanceMeter.yPos = [0, 13, 27, 40, 53, 67, 80, 93, 107, 120];
/**
* Distance meter config.
* @enum {number}
*/
DistanceMeter.config = {
// Number of digits.
MAX_DISTANCE_UNITS: 5,
// Distance that causes achievement animation.
ACHIEVEMENT_DISTANCE: 100,
// Used for conversion from pixel distance to a scaled unit.
COEFFICIENT: 0.025,
// Flash duration in milliseconds.
FLASH_DURATION: 1000 / 4,
// Flash iterations for achievement animation.
FLASH_ITERATIONS: 3,
// Padding around the high score hit area.
HIGH_SCORE_HIT_AREA_PADDING: 4
};
DistanceMeter.prototype = {
/**
* Initialise the distance meter to '00000'.
* @param {number} width Canvas width in px.
*/
init: function(width) {
var maxDistanceStr = '';
this.calcXPos(width);
this.maxScore = this.maxScoreUnits;
for (var i = 0; i < this.maxScoreUnits; i++) {
this.draw(i, 0);
this.defaultString += '0';
maxDistanceStr += '9';
}
this.maxScore = parseInt(maxDistanceStr);
},
/**
* Calculate the xPos in the canvas.
* @param {number} canvasWidth
*/
calcXPos: function(canvasWidth) {
this.x = canvasWidth - (DistanceMeter.dimensions.DEST_WIDTH *
(this.maxScoreUnits + 1));
},
/**
* Draw a digit to canvas.
* @param {number} digitPos Position of the digit.
* @param {number} value Digit value 0-9.
* @param {boolean} opt_highScore Whether drawing the high score.
*/
draw: function(digitPos, value, opt_highScore) {
var sourceWidth = DistanceMeter.dimensions.WIDTH;
var sourceHeight = DistanceMeter.dimensions.HEIGHT;
var sourceX = DistanceMeter.dimensions.WIDTH * value;
var sourceY = 0;
var targetX = digitPos * DistanceMeter.dimensions.DEST_WIDTH;
var targetY = this.y;
var targetWidth = DistanceMeter.dimensions.WIDTH;
var targetHeight = DistanceMeter.dimensions.HEIGHT;
// For high DPI we 2x source values.
if (IS_HIDPI) {
sourceWidth *= 2;
sourceHeight *= 2;
sourceX *= 2;
}
sourceX += this.spritePos.x;
sourceY += this.spritePos.y;
this.canvasCtx.save();
if (opt_highScore) {
// Left of the current score.
var highScoreX = this.x - (this.maxScoreUnits * 2) *
DistanceMeter.dimensions.WIDTH;
this.canvasCtx.translate(highScoreX, this.y);
} else {
this.canvasCtx.translate(this.x, this.y);
}
this.canvasCtx.drawImage(this.image, sourceX, sourceY,
sourceWidth, sourceHeight,
targetX, targetY,
targetWidth, targetHeight
);
this.canvasCtx.restore();
},
/**
* Covert pixel distance to a 'real' distance.
* @param {number} distance Pixel distance ran.
* @return {number} The 'real' distance ran.
*/
getActualDistance: function(distance) {
return distance ? Math.round(distance * this.config.COEFFICIENT) : 0;
},
/**
* Update the distance meter.
* @param {number} distance
* @param {number} deltaTime
* @return {boolean} Whether the acheivement sound fx should be played.
*/
update: function(deltaTime, distance) {
var paint = true;
var playSound = false;
if (!this.achievement) {
distance = this.getActualDistance(distance);
// Score has gone beyond the initial digit count.
if (distance > this.maxScore && this.maxScoreUnits ==
this.config.MAX_DISTANCE_UNITS) {
this.maxScoreUnits++;
this.maxScore = parseInt(this.maxScore + '9');
} else {
this.distance = 0;
}
if (distance > 0) {
// Acheivement unlocked
if (distance % this.config.ACHIEVEMENT_DISTANCE == 0) {
// Flash score and play sound.
this.achievement = true;
this.flashTimer = 0;
playSound = true;
}
// Create a string representation of the distance with leading 0.
var distanceStr = (this.defaultString +
distance).substr(-this.maxScoreUnits);
this.digits = distanceStr.split('');
} else {
this.digits = this.defaultString.split('');
}
} else {
// Control flashing of the score on reaching acheivement.
if (this.flashIterations <= this.config.FLASH_ITERATIONS) {
this.flashTimer += deltaTime;
if (this.flashTimer < this.config.FLASH_DURATION) {
paint = false;
} else if (this.flashTimer >
this.config.FLASH_DURATION * 2) {
this.flashTimer = 0;
this.flashIterations++;
}
} else {
this.achievement = false;
this.flashIterations = 0;
this.flashTimer = 0;
}
}
// Draw the digits if not flashing.
if (paint) {
for (var i = this.digits.length - 1; i >= 0; i--) {
this.draw(i, parseInt(this.digits[i]));
}
}
this.drawHighScore();
return playSound;
},
/**
* Draw the high score.
*/
drawHighScore: function() {
this.canvasCtx.save();
this.canvasCtx.globalAlpha = .8;
for (var i = this.highScore.length - 1; i >= 0; i--) {
this.draw(i, parseInt(this.highScore[i], 10), true);
}
this.canvasCtx.restore();
},
/**
* Set the highscore as a array string.
* Position of char in the sprite: H - 10, I - 11.
* @param {number} distance Distance ran in pixels.
*/
setHighScore: function(distance) {
distance = this.getActualDistance(distance);
var highScoreStr = (this.defaultString +
distance).substr(-this.maxScoreUnits);
this.highScore = ['10', '11', ''].concat(highScoreStr.split(''));
},
/**
* Whether a clicked is in the high score area.
* @param {TouchEvent|ClickEvent} e Event object.
* @return {boolean} Whether the click was in the high score bounds.
*/
hasClickedOnHighScore: function(e) {
var x = 0;
var y = 0;
if (e.touches) {
// Bounds for touch differ from pointer.
var canvasBounds = this.canvas.getBoundingClientRect();
x = e.touches[0].clientX - canvasBounds.left;
y = e.touches[0].clientY - canvasBounds.top;
} else {
x = e.offsetX;
y = e.offsetY;
}
this.highScoreBounds = this.getHighScoreBounds();
return x >= this.highScoreBounds.x && x <=
this.highScoreBounds.x + this.highScoreBounds.width &&
y >= this.highScoreBounds.y && y <=
this.highScoreBounds.y + this.highScoreBounds.height;
},
/**
* Get the bounding box for the high score.
* @return {Object} Object with x, y, width and height properties.
*/
getHighScoreBounds: function() {
return {
x: (this.x - (this.maxScoreUnits * 2) *
DistanceMeter.dimensions.WIDTH) -
DistanceMeter.config.HIGH_SCORE_HIT_AREA_PADDING,
y: this.y,
width: DistanceMeter.dimensions.WIDTH * (this.highScore.length + 1) +
DistanceMeter.config.HIGH_SCORE_HIT_AREA_PADDING,
height: DistanceMeter.dimensions.HEIGHT +
(DistanceMeter.config.HIGH_SCORE_HIT_AREA_PADDING * 2)
};
},
/**
* Animate flashing the high score to indicate ready for resetting.
* The flashing stops following this.config.FLASH_ITERATIONS x 2 flashes.
*/
flashHighScore: function() {
var now = getTimeStamp();
var deltaTime = now - (this.frameTimeStamp || now);
var paint = true;
this.frameTimeStamp = now;
// Reached the max number of flashes.
if (this.flashIterations > this.config.FLASH_ITERATIONS * 2) {
this.cancelHighScoreFlashing();
return;
}
this.flashTimer += deltaTime;
if (this.flashTimer < this.config.FLASH_DURATION) {
paint = false;
} else if (this.flashTimer > this.config.FLASH_DURATION * 2) {
this.flashTimer = 0;
this.flashIterations++;
}
if (paint) {
this.drawHighScore();
} else {
this.clearHighScoreBounds();
}
// Frame update.
this.flashingRafId =
requestAnimationFrame(this.flashHighScore.bind(this));
},
/**
* Draw empty rectangle over high score.
*/
clearHighScoreBounds: function() {
this.canvasCtx.save();
this.canvasCtx.fillStyle = '#fff';
this.canvasCtx.rect(this.highScoreBounds.x, this.highScoreBounds.y,
this.highScoreBounds.width, this.highScoreBounds.height);
this.canvasCtx.fill();
this.canvasCtx.restore();
},
/**
* Starts the flashing of the high score.
*/
startHighScoreFlashing() {
this.highScoreFlashing = true;
this.flashHighScore();
},
/**
* Whether high score is flashing.
* @return {boolean}
*/
isHighScoreFlashing() {
return this.highScoreFlashing;
},
/**
* Stop flashing the high score.
*/
cancelHighScoreFlashing: function() {
cancelAnimationFrame(this.flashingRafId);
this.flashIterations = 0;
this.flashTimer = 0;
this.highScoreFlashing = false;
this.clearHighScoreBounds();
this.drawHighScore();
},
/**
* Clear the high score.
*/
resetHighScore: function() {
this.setHighScore(0);
this.cancelHighScoreFlashing();
},
/**
* Reset the distance meter back to '00000'.
*/
reset: function() {
this.update(0);
this.achievement = false;
}
};
//******************************************************************************
/**
* Cloud background item.
* Similar to an obstacle object but without collision boxes.
* @param {HTMLCanvasElement} canvas Canvas element.
* @param {Object} spritePos Position of image in sprite.
* @param {number} containerWidth
*/
function Cloud(canvas, spritePos, containerWidth) {
this.canvas = canvas;
this.canvasCtx = this.canvas.getContext('2d');
this.spritePos = spritePos;
this.containerWidth = containerWidth;
this.xPos = containerWidth;
this.yPos = 0;
this.remove = false;
this.cloudGap = getRandomNum(Cloud.config.MIN_CLOUD_GAP,
Cloud.config.MAX_CLOUD_GAP);
this.init();
};
/**
* Cloud object config.
* @enum {number}
*/
Cloud.config = {
HEIGHT: 14,
MAX_CLOUD_GAP: 400,
MAX_SKY_LEVEL: 30,
MIN_CLOUD_GAP: 100,
MIN_SKY_LEVEL: 71,
WIDTH: 46
};
Cloud.prototype = {
/**
* Initialise the cloud. Sets the Cloud height.
*/
init: function() {
this.yPos = getRandomNum(Cloud.config.MAX_SKY_LEVEL,
Cloud.config.MIN_SKY_LEVEL);
this.draw();
},
/**
* Draw the cloud.
*/
draw: function() {
this.canvasCtx.save();
var sourceWidth = Cloud.config.WIDTH;
var sourceHeight = Cloud.config.HEIGHT;
var outputWidth = sourceWidth;
var outputHeight = sourceHeight;
if (IS_HIDPI) {
sourceWidth = sourceWidth * 2;
sourceHeight = sourceHeight * 2;
}
this.canvasCtx.drawImage(Runner.imageSprite, this.spritePos.x,
this.spritePos.y,
sourceWidth, sourceHeight,
this.xPos, this.yPos,
outputWidth, outputHeight);
this.canvasCtx.restore();
},
/**
* Update the cloud position.
* @param {number} speed
*/
update: function(speed) {
if (!this.remove) {
this.xPos -= Math.ceil(speed);
this.draw();
// Mark as removeable if no longer in the canvas.
if (!this.isVisible()) {
this.remove = true;
}
}
},
/**
* Check if the cloud is visible on the stage.
* @return {boolean}
*/
isVisible: function() {
return this.xPos + Cloud.config.WIDTH > 0;
}
};
//******************************************************************************
/**
* Nightmode shows a moon and stars on the horizon.
*/
function NightMode(canvas, spritePos, containerWidth) {
this.spritePos = spritePos;
this.canvas = canvas;
this.canvasCtx = canvas.getContext('2d');
this.xPos = containerWidth - 50;
this.yPos = 30;
this.currentPhase = 0;
this.opacity = 0;
this.containerWidth = containerWidth;
this.stars = [];
this.drawStars = false;
this.placeStars();
};
/**
* @enum {number}
*/
NightMode.config = {
FADE_SPEED: 0.035,
HEIGHT: 40,
MOON_SPEED: 0.25,
NUM_STARS: 2,
STAR_SIZE: 9,
STAR_SPEED: 0.3,
STAR_MAX_Y: 70,
WIDTH: 20
};
NightMode.phases = [140, 120, 100, 60, 40, 20, 0];
NightMode.prototype = {
/**
* Update moving moon, changing phases.
* @param {boolean} activated Whether night mode is activated.
* @param {number} delta
*/
update: function(activated, delta) {
// Moon phase.
if (activated && this.opacity == 0) {
this.currentPhase++;
if (this.currentPhase >= NightMode.phases.length) {
this.currentPhase = 0;
}
}
// Fade in / out.
if (activated && (this.opacity < 1 || this.opacity == 0)) {
this.opacity += NightMode.config.FADE_SPEED;
} else if (this.opacity > 0) {
this.opacity -= NightMode.config.FADE_SPEED;
}
// Set moon positioning.
if (this.opacity > 0) {
this.xPos = this.updateXPos(this.xPos, NightMode.config.MOON_SPEED);
// Update stars.
if (this.drawStars) {
for (var i = 0; i < NightMode.config.NUM_STARS; i++) {
this.stars[i].x = this.updateXPos(this.stars[i].x,
NightMode.config.STAR_SPEED);
}
}
this.draw();
} else {
this.opacity = 0;
this.placeStars();
}
this.drawStars = true;
},
updateXPos: function(currentPos, speed) {
if (currentPos < -NightMode.config.WIDTH) {
currentPos = this.containerWidth;
} else {
currentPos -= speed;
}
return currentPos;
},
draw: function() {
var moonSourceWidth = this.currentPhase == 3 ? NightMode.config.WIDTH * 2 :
NightMode.config.WIDTH;
var moonSourceHeight = NightMode.config.HEIGHT;
var moonSourceX = this.spritePos.x + NightMode.phases[this.currentPhase];
var moonOutputWidth = moonSourceWidth;
var starSize = NightMode.config.STAR_SIZE;
var starSourceX = Runner.spriteDefinition.LDPI.STAR.x;
if (IS_HIDPI) {
moonSourceWidth *= 2;
moonSourceHeight *= 2;
moonSourceX = this.spritePos.x +
(NightMode.phases[this.currentPhase] * 2);
starSize *= 2;
starSourceX = Runner.spriteDefinition.HDPI.STAR.x;
}
this.canvasCtx.save();
this.canvasCtx.globalAlpha = this.opacity;
// Stars.
if (this.drawStars) {
for (var i = 0; i < NightMode.config.NUM_STARS; i++) {
this.canvasCtx.drawImage(Runner.imageSprite,
starSourceX, this.stars[i].sourceY, starSize, starSize,
Math.round(this.stars[i].x), this.stars[i].y,
NightMode.config.STAR_SIZE, NightMode.config.STAR_SIZE);
}
}
// Moon.
this.canvasCtx.drawImage(Runner.imageSprite, moonSourceX,
this.spritePos.y, moonSourceWidth, moonSourceHeight,
Math.round(this.xPos), this.yPos,
moonOutputWidth, NightMode.config.HEIGHT);
this.canvasCtx.globalAlpha = 1;
this.canvasCtx.restore();
},
// Do star placement.
placeStars: function() {
var segmentSize = Math.round(this.containerWidth /
NightMode.config.NUM_STARS);
for (var i = 0; i < NightMode.config.NUM_STARS; i++) {
this.stars[i] = {};
this.stars[i].x = getRandomNum(segmentSize * i, segmentSize * (i + 1));
this.stars[i].y = getRandomNum(0, NightMode.config.STAR_MAX_Y);
if (IS_HIDPI) {
this.stars[i].sourceY = Runner.spriteDefinition.HDPI.STAR.y +
NightMode.config.STAR_SIZE * 2 * i;
} else {
this.stars[i].sourceY = Runner.spriteDefinition.LDPI.STAR.y +
NightMode.config.STAR_SIZE * i;
}
}
},
reset: function() {
this.currentPhase = 0;
this.opacity = 0;
this.update(false);
}
};
//******************************************************************************
/**
* Horizon Line.
* Consists of two connecting lines. Randomly assigns a flat / bumpy horizon.
* @param {HTMLCanvasElement} canvas
* @param {Object} spritePos Horizon position in sprite.
* @constructor
*/
function HorizonLine(canvas, spritePos) {
this.spritePos = spritePos;
this.canvas = canvas;
this.canvasCtx = canvas.getContext('2d');
this.sourceDimensions = {};
this.dimensions = HorizonLine.dimensions;
this.sourceXPos = [this.spritePos.x, this.spritePos.x +
this.dimensions.WIDTH];
this.xPos = [];
this.yPos = 0;
this.bumpThreshold = 0.5;
this.setSourceDimensions();
this.draw();
};
/**
* Horizon line dimensions.
* @enum {number}
*/
HorizonLine.dimensions = {
WIDTH: 600,
HEIGHT: 12,
YPOS: 127
};
HorizonLine.prototype = {
/**
* Set the source dimensions of the horizon line.
*/
setSourceDimensions: function() {
for (var dimension in HorizonLine.dimensions) {
if (IS_HIDPI) {
if (dimension != 'YPOS') {
this.sourceDimensions[dimension] =
HorizonLine.dimensions[dimension] * 2;
}
} else {
this.sourceDimensions[dimension] =
HorizonLine.dimensions[dimension];
}
this.dimensions[dimension] = HorizonLine.dimensions[dimension];
}
this.xPos = [0, HorizonLine.dimensions.WIDTH];
this.yPos = HorizonLine.dimensions.YPOS;
},
/**
* Return the crop x position of a type.
*/
getRandomType: function() {
return Math.random() > this.bumpThreshold ? this.dimensions.WIDTH : 0;
},
/**
* Draw the horizon line.
*/
draw: function() {
this.canvasCtx.drawImage(Runner.imageSprite, this.sourceXPos[0],
this.spritePos.y,
this.sourceDimensions.WIDTH, this.sourceDimensions.HEIGHT,
this.xPos[0], this.yPos,
this.dimensions.WIDTH, this.dimensions.HEIGHT);
this.canvasCtx.drawImage(Runner.imageSprite, this.sourceXPos[1],
this.spritePos.y,
this.sourceDimensions.WIDTH, this.sourceDimensions.HEIGHT,
this.xPos[1], this.yPos,
this.dimensions.WIDTH, this.dimensions.HEIGHT);
},
/**
* Update the x position of an indivdual piece of the line.
* @param {number} pos Line position.
* @param {number} increment
*/
updateXPos: function(pos, increment) {
var line1 = pos;
var line2 = pos == 0 ? 1 : 0;
this.xPos[line1] -= increment;
this.xPos[line2] = this.xPos[line1] + this.dimensions.WIDTH;
if (this.xPos[line1] <= -this.dimensions.WIDTH) {
this.xPos[line1] += this.dimensions.WIDTH * 2;
this.xPos[line2] = this.xPos[line1] - this.dimensions.WIDTH;
this.sourceXPos[line1] = this.getRandomType() + this.spritePos.x;
}
},
/**
* Update the horizon line.
* @param {number} deltaTime
* @param {number} speed
*/
update: function(deltaTime, speed) {
var increment = Math.floor(speed * (FPS / 1000) * deltaTime);
if (this.xPos[0] <= 0) {
this.updateXPos(0, increment);
} else {
this.updateXPos(1, increment);
}
this.draw();
},
/**
* Reset horizon to the starting position.
*/
reset: function() {
this.xPos[0] = 0;
this.xPos[1] = HorizonLine.dimensions.WIDTH;
}
};
//******************************************************************************
/**
* Horizon background class.
* @param {HTMLCanvasElement} canvas
* @param {Object} spritePos Sprite positioning.
* @param {Object} dimensions Canvas dimensions.
* @param {number} gapCoefficient
* @constructor
*/
function Horizon(canvas, spritePos, dimensions, gapCoefficient) {
this.canvas = canvas;
this.canvasCtx = this.canvas.getContext('2d');
this.config = Horizon.config;
this.dimensions = dimensions;
this.gapCoefficient = gapCoefficient;
this.obstacles = [];
this.obstacleHistory = [];
this.horizonOffsets = [0, 0];
this.cloudFrequency = this.config.CLOUD_FREQUENCY;
this.spritePos = spritePos;
this.nightMode = null;
// Cloud
this.clouds = [];
this.cloudSpeed = this.config.BG_CLOUD_SPEED;
// Horizon
this.horizonLine = null;
this.init();
};
/**
* Horizon config.
* @enum {number}
*/
Horizon.config = {
BG_CLOUD_SPEED: 0.2,
BUMPY_THRESHOLD: .3,
CLOUD_FREQUENCY: .5,
HORIZON_HEIGHT: 16,
MAX_CLOUDS: 6
};
Horizon.prototype = {
/**
* Initialise the horizon. Just add the line and a cloud. No obstacles.
*/
init: function() {
this.addCloud();
this.horizonLine = new HorizonLine(this.canvas, this.spritePos.HORIZON);
this.nightMode = new NightMode(this.canvas, this.spritePos.MOON,
this.dimensions.WIDTH);
},
/**
* @param {number} deltaTime
* @param {number} currentSpeed
* @param {boolean} updateObstacles Used as an override to prevent
* the obstacles from being updated / added. This happens in the
* ease in section.
* @param {boolean} showNightMode Night mode activated.
*/
update: function(deltaTime, currentSpeed, updateObstacles, showNightMode) {
this.runningTime += deltaTime;
this.horizonLine.update(deltaTime, currentSpeed);
this.nightMode.update(showNightMode);
this.updateClouds(deltaTime, currentSpeed);
if (updateObstacles) {
this.updateObstacles(deltaTime, currentSpeed);
}
},
/**
* Update the cloud positions.
* @param {number} deltaTime
* @param {number} currentSpeed
*/
updateClouds: function(deltaTime, speed) {
var cloudSpeed = this.cloudSpeed / 1000 * deltaTime * speed;
var numClouds = this.clouds.length;
if (numClouds) {
for (var i = numClouds - 1; i >= 0; i--) {
this.clouds[i].update(cloudSpeed);
}
var lastCloud = this.clouds[numClouds - 1];
// Check for adding a new cloud.
if (numClouds < this.config.MAX_CLOUDS &&
(this.dimensions.WIDTH - lastCloud.xPos) > lastCloud.cloudGap &&
this.cloudFrequency > Math.random()) {
this.addCloud();
}
// Remove expired clouds.
this.clouds = this.clouds.filter(function(obj) {
return !obj.remove;
});
} else {
this.addCloud();
}
},
/**
* Update the obstacle positions.
* @param {number} deltaTime
* @param {number} currentSpeed
*/
updateObstacles: function(deltaTime, currentSpeed) {
// Obstacles, move to Horizon layer.
var updatedObstacles = this.obstacles.slice(0);
for (var i = 0; i < this.obstacles.length; i++) {
var obstacle = this.obstacles[i];
obstacle.update(deltaTime, currentSpeed);
// Clean up existing obstacles.
if (obstacle.remove) {
updatedObstacles.shift();
}
}
this.obstacles = updatedObstacles;
if (this.obstacles.length > 0) {
var lastObstacle = this.obstacles[this.obstacles.length - 1];
if (lastObstacle && !lastObstacle.followingObstacleCreated &&
lastObstacle.isVisible() &&
(lastObstacle.xPos + lastObstacle.width + lastObstacle.gap) <
this.dimensions.WIDTH) {
this.addNewObstacle(currentSpeed);
lastObstacle.followingObstacleCreated = true;
}
} else {
// Create new obstacles.
this.addNewObstacle(currentSpeed);
}
},
removeFirstObstacle: function() {
this.obstacles.shift();
},
/**
* Add a new obstacle.
* @param {number} currentSpeed
*/
addNewObstacle: function(currentSpeed) {
var obstacleTypeIndex = getRandomNum(0, Obstacle.types.length - 1);
var obstacleType = Obstacle.types[obstacleTypeIndex];
// Check for multiples of the same type of obstacle.
// Also check obstacle is available at current speed.
if (this.duplicateObstacleCheck(obstacleType.type) ||
currentSpeed < obstacleType.minSpeed) {
this.addNewObstacle(currentSpeed);
} else {
var obstacleSpritePos = this.spritePos[obstacleType.type];
this.obstacles.push(new Obstacle(this.canvasCtx, obstacleType,
obstacleSpritePos, this.dimensions,
this.gapCoefficient, currentSpeed, obstacleType.width));
this.obstacleHistory.unshift(obstacleType.type);
if (this.obstacleHistory.length > 1) {
this.obstacleHistory.splice(Runner.config.MAX_OBSTACLE_DUPLICATION);
}
}
},
/**
* Returns whether the previous two obstacles are the same as the next one.
* Maximum duplication is set in config value MAX_OBSTACLE_DUPLICATION.
* @return {boolean}
*/
duplicateObstacleCheck: function(nextObstacleType) {
var duplicateCount = 0;
for (var i = 0; i < this.obstacleHistory.length; i++) {
duplicateCount = this.obstacleHistory[i] == nextObstacleType ?
duplicateCount + 1 : 0;
}
return duplicateCount >= Runner.config.MAX_OBSTACLE_DUPLICATION;
},
/**
* Reset the horizon layer.
* Remove existing obstacles and reposition the horizon line.
*/
reset: function() {
this.obstacles = [];
this.horizonLine.reset();
this.nightMode.reset();
},
/**
* Update the canvas width and scaling.
* @param {number} width Canvas width.
* @param {number} height Canvas height.
*/
resize: function(width, height) {
this.canvas.width = width;
this.canvas.height = height;
},
/**
* Add a new cloud to the horizon.
*/
addCloud: function() {
this.clouds.push(new Cloud(this.canvas, this.spritePos.CLOUD,
this.dimensions.WIDTH));
}
};
})();
</script>
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<div id="offline-resources" jstcache="0">
<img id="offline-resources-1x" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAABNEAAABEBAMAAABdZr6uAAAAGFBMVEUAAAD////a2tr/9/e6urpTU1P39/e5ubkY2m5RAAAAAXRSTlMAQObYZgAACRdJREFUeAHt3cFuo0gQBuDCvWiu1IG7lSdAQtxzmAcAWbVvkJzntq+/cfPDFHGB29gdcNK/Zj3tKgIJ+bYBJ2boeyUlJSUl40kKCsnh5UiBYWuTGHARUkDquhrHrq7pagOxGy8vL8ujqwvQkFciyqU9P7ZEItKSfMQXc/80l34kJIJFcqFcsNxt4TExqxFSyiQdXQl2czA1tjZZ9J6kCyggTuREQxqR6moDsRv4/NdKo8NUGkB5VAJB8OXhQVquRj9NWiafUlzd+uHo9zoFhYWNTXYD8iKoACqjFSfQtdRwNSHTBsgcL0bnQNEQ1UBHj7Q0grReENE4k1H/xDe8r3YcCVHe3g5NEI5bRQR54JSGdNe2fsC3I560AoVsrTTUqwVphjmtCLE6n9fxz2+iiRvBSFppMYmRz3nUhktL0m46VWMRtqQVgJUR8adC1kFaWfjCOmkOI0savBhTGkYBkxph9Psjr8pN/vfA2epj5nDapmrrpMkYjl8lGRNNmr11JQ27ep20rAOsssiEp4XSF/xJWl9YAFVXq6Qd6T5pGBtzmkcGadRfJkCa7/rBvdL4Bj18S5UtacwPlfbvnDRCmT8fNI5AhyWZrDCz+lglrZTCb5vPw25a0NJ8YV6ak1OANFejgUDXJbQjRirgZVE7YPSqpMHS4EswGhegXNX2Jq3sLGmoPkzaW6C0w9F8sSOCtOKKNBSrJWkOH1pFl9bCDaa0QVoupjQ0tjt6bijtPeToiR2ucpw9RqJ8Sa2AtGwqTRVwOH2AtKbCCA2DF0aQhpEKdC1cHrz2J/stpLWkLkAvpOnG1tI2OHq+f+QN2hakYT7TeTneKi3rIK0slLRpgX2B75bm5GRKO9Ld0tSk9oeI8un5l4i0HhSJ4AHEziM8w+tpP+iK4IPYOR9/vV2RRpc5YjlLGguk6ebUEaShcF1aXf0F5SpIQ2Mbab/oz69AaUna+zCnvS9JOxxfDGuHL5XW0wGo5lRBGhqKoC3N1RfQjhhBGkY6kKZe1tXUMKdFyLeUhiPnv4vSXojsbwQWY3uf4PE+aXgxw8sariQdnk8aIDgjrZHq8dJ+/Uc3JEl7uyptLvdLk2vSnFcyyqpsabphSjsPHi7tv4/8oclxUKTFKBf/H8Z6mbG0uCTGxl71ub+6gTSZl8Y+16AJ97ko4697pGlQtXJT2Y1FaXBivrBxxGgaOpgveeADMacFSkvSZDtp2ZNLw7Wn9pPLOJT8rxmaBrrM8cUy7+/WDwiZY1R1lLMI0uytL0DT4cUypImazajU0jDEo6yV5qqvkuavPS0bkCZJ2rbSugywCsoGWCiM0sr10hrPqv6qOS26tHfx0jJWhxkiFo5SJSFEK/MtK1hDcas0e+vz4T4yBM/JLI/SCkjrxt+R46EwSCv6+hpptf8j8hXSxp97SvAZl20yN5bEmncqLeMhhSGNx2worWPqpXExSOvGwiiNGLPeemkVVfGlLemiNr8+pxlXB6TKLUEacznuTCI4iVAl9aUoaX2bFS81LDvmQtljU9oYSDO3jtx7EMXJGSayggjDYigoaYRZb0lavSTtRO7kpdXxpL2+vv5QaeOHScespSGCMOufRvm8xZeGCQxbHqV1PBQAb5TGxbI0H1vaqa4IL7JJPGn//O5xzJ1xBUojkdaURiJnaYLvHQIncaokYrzCwaIWBq/JsFP2xJQm70iPwNx6ODXgnC2rszMlTRdKLa2gBWluWRpRfGn+d26JRMTWFfB6GgJoekkQlp1KK2UcG9JkDKRNE19axj0s4nIqDQWQkxBp1ARIoyb+nBZf2uR7x3ASqUoioqDRKO0iXamkXYSXpVlbD5eGsF3n4PdG+dJ1aW5ZmvNzGhaKeJ4WOzGlJWlFiDRqFqU1H43q/CBRrz2/Rhqiz+cjVUkmoT4wYaZjk1qANBXmYGn2R7AqB0vrWBWGS8waoGrpHyoih4YpzcmpkVpOrq6j/YQ9SXt2aTSRhgDTMCZCEw0QvJBG5AabEaTRBtLIhyNVLWnL1Loi4/JuaRQWnn2ZlxGi+6VVTo0hTTegzpAGm1tIS9LsuyXsThqcgEqjxl4anrhGc7SlVRHeRxA9BgmOXCVTmk0N0miBGs/dAYbXSQtYdp00aAIVB2d1BWmqgRaGWhoa30Max66SCW29NPOuVsbWt5cGRHWtJzGkUQ0QxFBLQyPCu/A2oMbRq2RKM6l1cGNTYx+aC6+UxhRJGtX13zfb4UqSENUAQQyVtKjvYU/S9iYt/l2tFMHm+0gzru3jV0lDs6jh5VoMCqLP1JjHQdhX9XhpxFwMB+6wwop7DblaSwu7AwyGGhpILdwBZhtpSVq8rLqrFa4Wot3VahNqzHGriAHNa5q+tNGnQFdTY2Ik9KsKDQvTzqThdC3anfp+sDTmsuM5aR2z8I+S5pt1Ffnuo/GjjlwswhxaZRzYdJWD1gBqdCmtxC8IeWkGG2w1WI7aenCY9ifNNVKpRoQ7Kv8saRlDWpGVWLe51TA6OJ3D1gV5TmmkpUW6S3z86DNhFg6v4sA2pRa4hl7ZpTR/f4uC5qQxETM4r/uq4ie+tAj5YdIoG6VN1o1AWh9K0p5XGuMhrGqEmUPXQEKWNGYuu4LmpAHYTdKYkrTZJGmILS08Iknabo+ewqFVO4FrIBE8GAfQInDVK7+q7aU5DapabFjSKtp7krScto1zHlTjrVT972qfLhrk0DCkofHMGd8ZHlo1s7SGgOAMbWHV4RExtr5xmkbGqcudBDOUbvQE0XBamm7ET5L23HGu/khFAHXOpwYIwldFbnwXnmqEJCXFaStNpRuK4Lnh8M9+NpWrdSMoKSmaigtoqDGePFtSUlJSUlJSRIT2nFykNcbPlpS8Pf/ZcYSoNcZPlpRciEhov8E/eKvHz5gUweM+A1h4FFV5SOTrktJiZhuCZ/uJMtHe54NS9jaFCKWkxE4/d6TkcuvybeBJ5/pgI/ETvrm0r4I3JxK2IkKEwiJzK0Da0CPMRdqgb7C0K2jk2CIWCNxXaV/tMnnYEisiKz6DDfdS2lf53OckcuP/S0HTd4stYPE4EVqTNu2r4AQeOmXVYaLd3TkjPu/2wfu2Tfvqhn313ZOSkpLyPyeERVeEgd/fAAAAAElFTkSuQmCC" jstcache="0">
<img id="offline-resources-2x" src="data:image/png;base64,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" jstcache="0">
<template id="audio-resources" jstcache="0"></template>
</div>
<script jstcache="0">// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview This file defines a singleton which provides access to all data
* that is available as soon as the page's resources are loaded (before DOM
* content has finished loading). This data includes both localized strings and
* any data that is important to have ready from a very early stage (e.g. things
* that must be displayed right away).
*
* Note that loadTimeData is not guaranteed to be consistent between page
* refreshes (https://crbug.com/740629) and should not contain values that might
* change if the page is re-opened later.
*/
// #import {assert} from './assert.m.js';
// #import {parseHtmlSubset} from './parse_html_subset.m.js';
/**
* @typedef {{
* substitutions: (Array<string>|undefined),
* attrs: (Object<function(Node, string):boolean>|undefined),
* tags: (Array<string>|undefined),
* }}
*/
/* #export */ let SanitizeInnerHtmlOpts;
// eslint-disable-next-line no-var
/* #export */ /** @type {!LoadTimeData} */ var loadTimeData;
// Expose this type globally as a temporary work around until
// https://github.com/google/closure-compiler/issues/544 is fixed.
/** @constructor */
function LoadTimeData(){}
(function() {
'use strict';
LoadTimeData.prototype = {
/**
* Sets the backing object.
*
* Note that there is no getter for |data_| to discourage abuse of the form:
*
* var value = loadTimeData.data()['key'];
*
* @param {Object} value The de-serialized page data.
*/
set data(value) {
expect(!this.data_, 'Re-setting data.');
this.data_ = value;
},
/**
* Returns a JsEvalContext for |data_|.
* @returns {JsEvalContext}
*/
createJsEvalContext: function() {
return new JsEvalContext(this.data_);
},
/**
* @param {string} id An ID of a value that might exist.
* @return {boolean} True if |id| is a key in the dictionary.
*/
valueExists: function(id) {
return id in this.data_;
},
/**
* Fetches a value, expecting that it exists.
* @param {string} id The key that identifies the desired value.
* @return {*} The corresponding value.
*/
getValue: function(id) {
expect(this.data_, 'No data. Did you remember to include strings.js?');
const value = this.data_[id];
expect(typeof value != 'undefined', 'Could not find value for ' + id);
return value;
},
/**
* As above, but also makes sure that the value is a string.
* @param {string} id The key that identifies the desired string.
* @return {string} The corresponding string value.
*/
getString: function(id) {
const value = this.getValue(id);
expectIsType(id, value, 'string');
return /** @type {string} */ (value);
},
/**
* Returns a formatted localized string where $1 to $9 are replaced by the
* second to the tenth argument.
* @param {string} id The ID of the string we want.
* @param {...(string|number)} var_args The extra values to include in the
* formatted output.
* @return {string} The formatted string.
*/
getStringF: function(id, var_args) {
const value = this.getString(id);
if (!value) {
return '';
}
const args = Array.prototype.slice.call(arguments);
args[0] = value;
return this.substituteString.apply(this, args);
},
/**
* Make a string safe for use with with Polymer bindings that are
* inner-h-t-m-l (or other innerHTML use).
* @param {string} rawString The unsanitized string.
* @param {SanitizeInnerHtmlOpts=} opts Optional additional allowed tags and
* attributes.
* @return {string}
*/
sanitizeInnerHtml: function(rawString, opts) {
opts = opts || {};
return parseHtmlSubset('<b>' + rawString + '</b>', opts.tags, opts.attrs)
.firstChild.innerHTML;
},
/**
* Returns a formatted localized string where $1 to $9 are replaced by the
* second to the tenth argument. Any standalone $ signs must be escaped as
* $$.
* @param {string} label The label to substitute through.
* This is not an resource ID.
* @param {...(string|number)} var_args The extra values to include in the
* formatted output.
* @return {string} The formatted string.
*/
substituteString: function(label, var_args) {
const varArgs = arguments;
return label.replace(/\$(.|$|\n)/g, function(m) {
assert(m.match(/\$[$1-9]/), 'Unescaped $ found in localized string.');
return m == '$$' ? '$' : varArgs[m[1]];
});
},
/**
* Returns a formatted string where $1 to $9 are replaced by the second to
* tenth argument, split apart into a list of pieces describing how the
* substitution was performed. Any standalone $ signs must be escaped as $$.
* @param {string} label A localized string to substitute through.
* This is not an resource ID.
* @param {...(string|number)} var_args The extra values to include in the
* formatted output.
* @return {!Array<!{value: string, arg: (null|string)}>} The formatted
* string pieces.
*/
getSubstitutedStringPieces: function(label, var_args) {
const varArgs = arguments;
// Split the string by separately matching all occurrences of $1-9 and of
// non $1-9 pieces.
const pieces = (label.match(/(\$[1-9])|(([^$]|\$([^1-9]|$))+)/g) ||
[]).map(function(p) {
// Pieces that are not $1-9 should be returned after replacing $$
// with $.
if (!p.match(/^\$[1-9]$/)) {
assert(
(p.match(/\$/g) || []).length % 2 == 0,
'Unescaped $ found in localized string.');
return {value: p.replace(/\$\$/g, '$'), arg: null};
}
// Otherwise, return the substitution value.
return {value: varArgs[p[1]], arg: p};
});
return pieces;
},
/**
* As above, but also makes sure that the value is a boolean.
* @param {string} id The key that identifies the desired boolean.
* @return {boolean} The corresponding boolean value.
*/
getBoolean: function(id) {
const value = this.getValue(id);
expectIsType(id, value, 'boolean');
return /** @type {boolean} */ (value);
},
/**
* As above, but also makes sure that the value is an integer.
* @param {string} id The key that identifies the desired number.
* @return {number} The corresponding number value.
*/
getInteger: function(id) {
const value = this.getValue(id);
expectIsType(id, value, 'number');
expect(value == Math.floor(value), 'Number isn\'t integer: ' + value);
return /** @type {number} */ (value);
},
/**
* Override values in loadTimeData with the values found in |replacements|.
* @param {Object} replacements The dictionary object of keys to replace.
*/
overrideValues: function(replacements) {
expect(
typeof replacements == 'object',
'Replacements must be a dictionary object.');
for (const key in replacements) {
this.data_[key] = replacements[key];
}
}
};
/**
* Checks condition, displays error message if expectation fails.
* @param {*} condition The condition to check for truthiness.
* @param {string} message The message to display if the check fails.
*/
function expect(condition, message) {
if (!condition) {
console.error(
'Unexpected condition on ' + document.location.href + ': ' + message);
}
}
/**
* Checks that the given value has the given type.
* @param {string} id The id of the value (only used for error message).
* @param {*} value The value to check the type on.
* @param {string} type The type we expect |value| to be.
*/
function expectIsType(id, value, type) {
expect(
typeof value == type, '[' + value + '] (' + id + ') is not a ' + type);
}
expect(!loadTimeData, 'should only include this file once');
loadTimeData = new LoadTimeData;
// Expose |loadTimeData| directly on |window|. This is only necessary by the
// auto-generated load_time_data.m.js, since within a JS module the scope is
// local.
window.loadTimeData = loadTimeData;
})();
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