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index.html
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<!DOCTYPE html>
<html>
<head>
<title>Auto Scratch Desktop Mirror</title>
<meta name="viewport" content="width=device-width,initial-scale=1" />
<meta
name="viewport"
content="width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=2.0, user-scalable=yes"
/>
<link
rel="shortcut icon"
href="//www.google.com/s2/favicons?sz=64&domain=scratch.mit.edu"
/>
<!-- Global site tag (gtag.js) - Google Analytics -->
<script
async
src="https://www.googletagmanager.com/gtag/js?id=G-FD23CNKF3B"
></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag() {
dataLayer.push(arguments);
}
gtag("js", new Date());
gtag("config", "G-FD23CNKF3B");
</script>
<link
href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900"
rel="stylesheet"
/>
<link
href="https://cdn.jsdelivr.net/npm/@mdi/[email protected]/css/materialdesignicons.min.css"
rel="stylesheet"
/>
<link
href="https://cdn.jsdelivr.net/npm/[email protected]/dist/vuetify.min.css"
rel="stylesheet"
/>
<meta
name="viewport"
content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no, minimal-ui"
/>
</head>
<body>
<div id="app">
<v-app>
<v-main>
<v-toolbar elevation="4">
<v-app-bar-nav-icon>
<v-icon>mdi-download-box-outline</v-icon>
</v-app-bar-nav-icon>
<v-toolbar-title
>Auto Scratch-Desktop Mirror NEXT</v-toolbar-title
>
</v-toolbar>
<v-container class="d-flex mt-5">
<v-row class="mx-5">
<v-col>
<div class="text-body-1">
Auto Scratch Desktop Mirror 是一个 Scratch
桌面版的开源下载镜像项目。我们通过 Github Workflow
自动下载 Scratch 官网的 Scratch 桌面版程序，并透过
CDN 或 Github Pages
提供，以方便中国大陆地区的用户下载。
<p class="font-weight-light mt-2 text-caption">
项目开源于
<a href="https://github.com/scratch-bar/asdm"
>GitHub</a
>，本版本由 waterblock79 开发。
<br />
感谢: Scratch Team, GitHub, Vue.js, Vuetify.js
以及所有为这个项目添砖加瓦的人们!
</p>
</div>
</v-col>
<v-col>
<v-card elevation="2">
<v-card-title>下载 Scratch 3.0</v-card-title>
<v-card-text>
您也可以尝试
<a
href="https://llk.github.io/scratch-gui/develop/"
>在线版本的 Scratch 3.0</a
>
，或在应用商店中下载
<a
href="https://apps.apple.com/cn/app/scratch-desktop/id1446785996?mt=12"
>Mac OS 版本</a
>
和
<a
href="https://www.microsoft.com/zh-cn/p/scratch-3/9pfgj25jl6x3"
>Windows 10 以上版本</a
>
的 Scratch 桌面版。
<br />
<b v-if="data.length"
>最后镜像于 {{ new
Date(data[0].time).toLocaleDateString() }}。</b
>
</v-card-text>
<v-card-actions>
<v-btn
color="primary"
v-for="download in data"
@click="downloadItem(download)"
text
:disabled="!!currentDownload"
>
<v-icon size="16">{{download.icon}}</v-icon>
{{download.description}}
</v-btn>
</v-card-actions>
<small class="ml-4 blue-grey--text" v-if="currentDownload"
>{{ (currentDownload?.size * progress / 100
/ 1024 / 1024).toFixed(1) }} MB 已下载</small
>
<v-progress-linear
:value="progress"
v-if="currentDownload"
></v-progress-linear>
</v-card>
<v-card elevation="2" class="mt-7">
<v-card-title>设置下载源</v-card-title>
<v-card-text>
通常情况下您<b>不需要更改下载源</b>，但如果默认下载源不可用，您可以更改为另外一个，或者自定义下载源。
<v-combobox
v-model="source"
:items="['', 'https://scratch-bar.github.io/asdm/', 'https://cdn.jsdelivr.net/gh/scratch-bar/asdm/']"
dense
></v-combobox>
</v-card-text>
</v-card>
</v-col>
</v-row>
</v-container>
</v-main>
</v-app>
</div>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.js"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vuetify.js"></script>
<script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
<script>
new Vue({
el: "#app",
vuetify: new Vuetify(),
data: {
data: [],
source: "",
currentDownload: null,
chunkLoaded: [],
progress: 0,
},
watch: {
source: {
handler() {
axios
.get(`${this.source}output/data.json`)
.then((res) => {
this.data = res.data;
})
.catch(e => alert(`我们在从 ${this.source} 获取下载清单时遇到了一个错误：\n${e}`))
},
immediate: true
},
},
methods: {
computeProgress() {
if (this.currentDownload) {
let sum = 0;
this.chunkLoaded.forEach((c) => {
if (Number.isInteger(c)) {
sum += c;
}
});
return (sum / this.currentDownload.size) * 100;
} else {
return 0;
}
},
downloadItem(item) {
this.currentDownload = item;
this.chunkLoaded = [];
let chunks = [],
sum = 0;
const source = axios.CancelToken.source();
item.download.forEach((chunk, index) => {
let chunkUrl = `${this.source}output/${chunk}`;
axios
.get(chunkUrl, {
responseType: "arraybuffer",
onDownloadProgress: (e) => {
this.chunkLoaded[index] = e.loaded;
this.progress = this.computeProgress();
},
cancelToken: source.token
})
.then((res) => {
chunks[index] = res.data;
sum++;
if (sum === item.download.length && this.currentDownload) {
let size = 0;
chunks.forEach((c) => (size += c.byteLength));
let output = new Uint8Array(size),
offset = 0;
chunks.forEach((c) => {
output.set(new Uint8Array(c), offset);
offset += c.byteLength;
});
let a = document.createElement("a");
a.href = URL.createObjectURL(new Blob([output]));
a.download = item.fileName;
a.click();
this.currentDownload = null;
}
})
.catch((e) => {
if (e.name === 'CanceledError') return;
alert("我们在获取 " + chunkUrl + " 时遇到了一个错误：\n" + e);
this.currentDownload = null;
source.cancel('Meet an error');
});
});
},
},
});
</script>
</body>
</html>