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Add Progressive Web App support to the HTML5 editor
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| { | ||
| "name": "Godot Engine", | ||
| "short_name": "Godot", | ||
| "description": "Multi-platform 2D and 3D game engine with a feature-rich editor", | ||
| "lang": "en", | ||
| "start_url": "/", | ||
| "display": "standalone", | ||
| "orientation": "landscape", | ||
| "theme_color": "#478cbf", | ||
| "icons": [ | ||
| { | ||
| "src": "favicon.png", | ||
| "sizes": "256x256", | ||
| "type": "image/png" | ||
| } | ||
| ], | ||
| "background_color": "#333b4f" | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,42 @@ | ||
| <!DOCTYPE html> | ||
| <html lang="en"> | ||
| <head> | ||
| <meta charset="utf-8" /> | ||
| <meta http-equiv="X-UA-Compatible" content="IE=edge" /> | ||
| <meta name="viewport" content="width=device-width, initial-scale=1" /> | ||
| <title>You are offline</title> | ||
| <style> | ||
| html { | ||
| background-color: #333b4f; | ||
| color: #e0e0e0; | ||
| } | ||
|
|
||
| body { | ||
| font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; | ||
| margin: 2rem; | ||
| } | ||
|
|
||
| p { | ||
| margin-block: 1rem; | ||
| } | ||
|
|
||
| button { | ||
| display: block; | ||
| padding: 1rem 2rem; | ||
| margin: 3rem auto 0; | ||
| } | ||
| </style> | ||
| </head> | ||
| <body> | ||
| <h1>You are offline</h1> | ||
| <p>This application requires an Internet connection to run.</p> | ||
| <p>Press the button below to try reloading:</p> | ||
| <button type="button">Reload</button> | ||
|
|
||
| <script> | ||
| document.querySelector("button").addEventListener("click", () => { | ||
| window.location.reload(); | ||
| }); | ||
| </script> | ||
| </body> | ||
| </html> |
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| /* | ||
| Copyright 2015, 2019, 2020 Google LLC. All Rights Reserved. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| // This service worker is required to expose an exported Godot project as a | ||
| // Progressive Web App. It provides an offline fallback page telling the user | ||
| // that they need an Internet conneciton to run the project (since the | ||
| // WebAssembly payload and PCK file are too large to cache). | ||
|
|
||
| // Incrementing OFFLINE_VERSION will kick off the install event and force | ||
| // previously cached resources to be updated from the network. | ||
| const OFFLINE_VERSION = 1; | ||
| const CACHE_NAME = "offline"; | ||
| const OFFLINE_URL = "offline.html"; | ||
|
|
||
| self.addEventListener("install", (event) => { | ||
| event.waitUntil( | ||
| (async () => { | ||
| const cache = await caches.open(CACHE_NAME); | ||
| // Setting {cache: 'reload'} in the new request will ensure that the | ||
| // response isn't fulfilled from the HTTP cache; i.e., it will be from | ||
| // the network. | ||
| await cache.add(new Request(OFFLINE_URL, { cache: "reload" })); | ||
| })() | ||
| ); | ||
| // Force the waiting service worker to become the active service worker. | ||
| self.skipWaiting(); | ||
| }); | ||
|
|
||
| self.addEventListener("activate", (event) => { | ||
| event.waitUntil( | ||
| (async () => { | ||
| if ("navigationPreload" in self.registration) { | ||
| await self.registration.navigationPreload.enable(); | ||
| } | ||
| })() | ||
| ); | ||
|
|
||
| // Tell the active service worker to take control of the page immediately. | ||
| self.clients.claim(); | ||
| }); | ||
|
|
||
| self.addEventListener("fetch", (event) => { | ||
| // We only want to call event.respondWith() if this is a navigation request | ||
| // for an HTML page. | ||
| if (event.request.mode === "navigate") { | ||
| event.respondWith( | ||
| (async () => { | ||
| try { | ||
| // First, try to use the navigation preload response if it's supported. | ||
| const preloadResponse = await event.preloadResponse; | ||
| if (preloadResponse) { | ||
| return preloadResponse; | ||
| } | ||
|
|
||
| // Always try the network first. | ||
| const networkResponse = await fetch(event.request); | ||
| return networkResponse; | ||
| } catch (error) { | ||
| // catch is only triggered if an exception is thrown, which is likely | ||
| // due to a network error. | ||
| // If fetch() returns a valid HTTP response with a response code in | ||
| // the 4xx or 5xx range, the catch() will NOT be called. | ||
| console.log("Fetch failed; returning offline page instead.", error); | ||
|
|
||
| const cache = await caches.open(CACHE_NAME); | ||
| const cachedResponse = await cache.match(OFFLINE_URL); | ||
| return cachedResponse; | ||
| } | ||
| })() | ||
| ); | ||
| } | ||
|
|
||
| // If our if() condition is false, then this fetch handler won't intercept the | ||
| // request. If there are any other fetch handlers registered, they will get a | ||
| // chance to call event.respondWith(). If no fetch handlers call | ||
| // event.respondWith(), the request will be handled by the browser as if there | ||
| // were no service worker involvement. | ||
| }); |
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