下载多个文件和zip - Chrome扩展程序 [英] Downloading multiple files and zip - Chrome extension
问题描述
是否可以将多个图像下载到沙箱文件系统中（没有另存为对话框或最多一个保存对话框）？
Is it possible to download multiple images into the sandbox file system (without the "save as" dialog box, or at-max one saveas dialog) ?
之后下载它们，我想把它们压缩成一个..有没有任何javascript归档库？
after downloading them, i'd like to ZIP them into one.. is there any javascript archive library?
提前感谢
推荐答案
您可以使用 zip.js 为此。
它已经具有用于获取要从HTTP压缩的内容的API（参见 zip.HttpReader 构造函数），并在HTML5文件系统上编写生成的zip（参见 zip.FileWriter constructor）。
You can use zip.js for this. It does already have API for fetching contents to be zipped from HTTP (cf. zip.HttpReader constructor) and for writing generated zip on HTML5 filesystem (cf. zip.FileWriter constructor).
这里是一个使用 filesystem API ：
index.html file：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Zip JSON data from the BBC into HTML5 FileSystem</title>
</head>
<body>
<script src="zip.js"></script>
<script src="zip-fs.js"></script>
<script src="zip-ext.js"></script>
<script src="example.js"></script>
</body>
</html>
example.js file：
// create a zip virtual filesystem
var fs = new zip.fs.FS();
// add some files into the zip filesystem
// add the "bbc-music.json" file in the root directory
fs.root.addHttpContent("bbc-music.json",
"http://www.bbc.co.uk/programmes/genres/music.json");
// add the "bbc-learning.json" file in the root directory
fs.root.addHttpContent("bbc-learning.json",
"http://www.bbc.co.uk/programmes/genres/learning.json");
// create a file named "test.zip" in the root directory of the HTML5 filesystem
createFile("test.zip", function(fileEntry) {
// export the zip content into "test.zip" file
fs.root.exportFileEntry(fileEntry, function() {
console.log("done");
});
});
// function to create a file in the HTML5 temporary filesystem
function createFile(filename, callback) {
webkitRequestFileSystem(TEMPORARY, 4 * 1024 * 1024, function(fs) {
fs.root.getFile(filename, { create : true }, callback);
});
}
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