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9308106
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2012-02-16T08:52:42.370
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2012-02-16T13:57:16.880
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2012-02-16T13:57:16.880
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<h2>Using RequestFileSystem within Chrome Extension</h2> <p>In order to use the FileSystem API as a root filesystem for your Chrome extension, you can actually use <code>window.webkitRequestFileSystem</code> instead of <code>requestQuota</code>.</p> <pre><code>window.webkitRequestFileSystem(window.PERSISTENT, 1024 * 1024, function (filesystem) { console.log(filesystem); console.log(filesystem.root); }, function (e) { console.log("Could not request File System"); }); </code></pre> <p>This does print correctly on Chrome 15,16 and 17 for me:</p> <pre><code>DOMFileSystem DirectoryEntry </code></pre> <hr> <h2>Using requestQuota for HTML5 apps</h2> <p>Just for reference, this would be the way to actually request the quota (i.e., when not using a Chrome Extension). You have to request the quota (the user sees a little banner at the top of his/her window) first. The RequestFileSystem is called if the user accepts. </p> <pre><code>window.webkitStorageInfo.requestQuota(PERSISTENT, 1024*1024, function(grantedBytes) { window.webkitRequestFileSystem(PERSISTENT, grantedBytes, onInitFs, errorHandler); }, function(e) { console.log('Error requesting filesystem', e); }); </code></pre> <p>Eventually it might be necessary to request quota within an extension. Currently this can be circumvented with the <code>unlimitedStorage</code> permission. For the current state of implementation/storage types, see <a href="http://code.google.com/chrome/whitepapers/storage.html" rel="nofollow">http://code.google.com/chrome/whitepapers/storage.html</a></p>
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1. POHow to get the root folder in Chrome Extensions?
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1. USoliverguenther
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1. POHow to get the root folder in Chrome Extensions?
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1. COit works finally! thanks!
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2. COI've just updated the comment to show how to request storage from the user before allocating the file system. It might be necessary to set the `unlimitedStorage` permission to allocate storage *without* requesting it first.
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Querying!

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