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file.js
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file.js
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// HACK: fs keeps a reference to the last-used FileSystem requested via requestFileSystem
// this is a hack because if you keep switching between TEMPORARY vs. PERSISTENT file systems requested,
// and run Cordova File API methods, no parameter is passed into exec specifying the underlying File System.
// This should be fixed in Cordova!
var fs,
topCordova = ripple('platform/cordova/2.0.0/spec'),
rlfsu;
function cleanPath(path) {
while (path[0] && path[0] === '/') {
path = path.substr(1);
}
return path;
}
module.exports = {
requestFileSystem: function (win, fail, args) {
// HACK: may not be webkit
var rfs = window.webkitRequestFileSystem,
type = args[0],
size = args[1];
// HACK: assume any FS requested over a gig in size will throw an error
if (size > (1024 * 1024 * 1024 /* gigabyte */)) {
if (fail) fail(FileError.QUOTA_EXCEEDED_ERR);
} else {
return rfs(type, size, function (effes) {
fs = effes;
win(effes);
}, fail);
}
},
resolveLocalFileSystemURI: function (win, fail, args) {
var uri = args[0],
fulluri = fs.root.toURL();
// HACK: iOS-specific bs right here. See lib/ios/plugin/ios/Entry.js in cordova.js for details
// Cordova badly needs a unified File System abstraction.
if (uri.indexOf("file://localhost") === 0) {
uri = uri.substr(16);
}
uri = cleanPath(uri);
fulluri += uri;
return window.webkitResolveLocalFileSystemURL(fulluri, function (entry) {
if (win) win(entry);
}, function (error) {
if (fail) fail(error.code);
});
},
getFile: function (win, fail, args) {
var path = args[0],
filename = args[1],
options = args[2],
file = '';
path = cleanPath(path);
filename = cleanPath(filename);
if (path) {
file = path + '/';
}
file += filename;
fs.root.getFile(file, options, function (entry) {
if (win) win(entry);
}, function (err) {
if (fail) fail(err.code);
});
},
remove: function (win, fail, args) {
var file = args[0];
window.webkitResolveLocalFileSystemURL(fs.root.toURL() + file, function (entry) {
entry.remove(function () {
if (win) win();
}, function (err) {
if (fail) fail(err.code);
});
}, fail);
},
readEntries: function (win, fail, args) {
var root = fs.root.toURL(),
path = args[0],
reader;
path = cleanPath(path);
path = root + path;
window.webkitResolveLocalFileSystemURL(path, function (entry) {
reader = entry.createReader();
reader.readEntries(function (entries) {
if (win) win(entries);
}, function (err) {
if (fail) fail(err.code);
});
}, function (err) {
if (fail) fail(err.code);
});
},
getDirectory: function (win, fail, args) {
var path = args[0],
filename = args[1],
options = args[2],
file = '';
path = cleanPath(path);
filename = cleanPath(filename);
if (path) {
file = path + '/';
}
file += filename;
fs.root.getDirectory(file, options, function (entry) {
if (win) win(entry);
}, function (err) {
if (fail) fail(err.code);
});
},
removeRecursively: function (win, fail, args) {
var root = fs.root.toURL(),
path = args[0];
path = cleanPath(path);
window.webkitResolveLocalFileSystemURL(root + path, function (dirEntry) {
dirEntry.removeRecursively(function () {
if (win) win();
}, function (err) {
if (fail) fail(err.code);
});
}, function (err) {
if (fail) fail(err.code);
});
},
getFileMetadata: function (win, fail, args) {
var path = args[0],
root = fs.root.toURL();
path = cleanPath(path);
window.webkitResolveLocalFileSystemURL(root + path, function (entry) {
entry.file(function (file) {
if (win) {
file.fullPath = path;
win(file);
}
}, function (err) {
if (fail) fail(err.code);
});
}, function (err) {
if (fail) fail(err.code);
});
},
getMetadata: function (win, fail, args) {
var path = args[0],
root = fs.root.toURL();
path = cleanPath(path);
window.webkitResolveLocalFileSystemURL(root + path, function (entry) {
entry.getMetadata(function (data) {
if (win) win(data);
}, function (err) {
if (fail) fail(err.code);
});
}, function (err) {
if (fail) fail(err.code);
});
},
getParent: function (win, fail, args) {
var path = args[0],
root = fs.root.toURL();
path = cleanPath(path);
window.webkitResolveLocalFileSystemURL(root + path, function (entry) {
entry.getParent(function (dirEntry) {
if (win) win(dirEntry);
}, function (err) {
if (fail) fail(err.code);
});
}, function (err) {
if (fail) fail(err.code);
});
},
copyTo: function (win, fail, args) {
var src = args[0],
parent = args[1],
name = args[2],
root = fs.root.toURL();
parent = cleanPath(parent);
src = cleanPath(src);
rlfsu = window.webkitResolveLocalFileSystemURL;
// get the directoryentry that we will copy TO
rlfsu(root + parent, function (parentDirToCopyTo) {
rlfsu(root + src, function (sourceDir) {
sourceDir.copyTo(parentDirToCopyTo, name, function (newEntry) {
if (win) win(newEntry);
}, function (err) {
if (fail) fail(err.code);
});
}, function (err) {
if (fail) fail(err.code);
});
}, function (err) {
if (fail) fail(err.code);
});
},
moveTo: function (win, fail, args) {
var src = args[0],
parent = args[1],
name = args[2],
root = fs.root.toURL();
parent = cleanPath(parent);
src = cleanPath(src);
rlfsu = window.webkitResolveLocalFileSystemURL;
// get the directoryentry that we will move TO
rlfsu(root + parent, function (parentDirToMoveTo) {
rlfsu(root + src, function (sourceDir) {
sourceDir.moveTo(parentDirToMoveTo, name, function (newEntry) {
if (win) win(newEntry);
}, function (err) {
if (fail) fail(err.code);
});
}, function (err) {
if (fail) fail(err.code);
});
}, function (err) {
if (fail) fail(err.code);
});
},
write: function (win, fail, args) {
var file = args[0],
text = args[1],
position = args[2],
sourcepath,
blob;
// Format source path
sourcepath = ((file.fullPath ? file.fullPath : '') + file.name);
sourcepath = cleanPath(sourcepath);
// Create a blob for the text to be written
blob = new Blob([text], {type: "text/plain"});
// Get the FileEntry, create if necessary
fs.root.getFile(sourcepath, {create: true}, function (entry) {
// Create a FileWriter for this entry
entry.createWriter(function (writer) {
writer.onwriteend = function (progressEvt) {
if (win) win(progressEvt.total);
};
writer.onerror = function (err) {
if (fail) fail(err.code);
};
if (position && position > 0) {
writer.seek(position);
}
writer.write(blob);
}, function (err) {
if (fail) fail(err.code);
});
}, function (err) {
if (fail) fail(err.code);
});
},
readAsText: function (win, fail, args) {
var path = args[0],
encoding = args[1],
FileReader = topCordova.nativeMethods.FileReader,
fr = new FileReader();
// Set up FileReader events
fr.onerror = function (err) {
if (fail) fail(err.code);
};
fr.onload = function (evt) {
if (win) win(evt.target.result);
};
path = cleanPath(path);
fs.root.getFile(path, {create: false}, function (entry) {
entry.file(function (blob) {
fr.readAsText(blob, encoding);
}, function (err) {
if (fail) fail(err.code);
});
}, function (err) {
if (fail) fail(err.code);
});
},
readAsDataURL: function (win, fail, args) {
var path = args[0],
FileReader = topCordova.nativeMethods.FileReader,
fr = new FileReader();
// Set up FileReader events
fr.onerror = function (err) {
if (fail) fail(err.code);
};
fr.onload = function (evt) {
if (win) win(evt.target.result);
};
path = cleanPath(path);
fs.root.getFile(path, {create: false}, function (entry) {
entry.file(function (blob) {
fr.readAsDataURL(blob);
}, function (err) {
if (fail) fail(err.code);
});
}, function (err) {
if (fail) fail(err.code);
});
},
truncate: function (win, fail, args) {
var file = args[0],
position = args[1],
sourcepath;
// Format source path
sourcepath = cleanPath(file);
// Get the FileEntry, create if necessary
fs.root.getFile(sourcepath, {create: false}, function (entry) {
// Create a FileWriter for this entry
entry.createWriter(function (writer) {
writer.onwriteend = function (progressEvt) {
if (win) win(progressEvt.target.length);
};
writer.onerror = function (err) {
if (fail) fail(err.code);
};
writer.truncate(position);
}, function (err) {
if (fail) fail(err.code);
});
}, function (err) {
if (fail) fail(err.code);
});
}
};