I try the following code to copy a selected file to the storage directory:
private function onAddFileClick():void
{
m__file = new File();
m__file.addEventListener(Event.SELECT, onFileSelect);
m__file.browseForOpen("Select a sound", [c__filter]);
}
private function onFileSelect(e:Event):void
{
var l__target:File = File.applicationStorageDirectory.resolvePath("test.snd");
m__file.copyTo(l__target, true);
}
The copy works but the target file's name keeps the original file's name. If I try to copy a file name "Kalimba.mp3", the copy will be named "Kalimba.snd" and not "test.snd" as expected. The problem is that after the copy, my reference to the target file does not lead to anything since its nativePath sticks to "test.snd" which does not exist.
I use AIR 3.6 with Flex 4.6.
Renaming is done with File.moveTo().
copy first and then use moveTo() to rename it. Unless just moving it will do it for you! Obviously ;)
So after you copy:
var sourceFile:File = File.applicationStorageDirectory;
sourceFile = sourceFile.resolvePath("Kalimba.snd");
var destination:File = File.applicationStorageDirectory;
destination = destination.resolvePath("test.snd");
try
{
sourceFile.moveTo(destination, true);
}
catch (error:Error)
{
trace("Error:" + error.message);
}
Related
I wonder if it is possible to rename a file with FileWriter function. At this point, I can save my file without problem. But I'd like to change her name when saving. Here is my function:
function saveFile() {
var s = fileEntry.name;
var new_name = s.substring(0, s.lastIndexOf(".")) + ".min" + s.substring(s.lastIndexOf("."))
fileEntry.name = new_name;
fileEntry.createWriter(function(fileWriter) {
fileWriter.onerror = function(e) {
console.log("Write failed: " + e.toString());
};
var blob = new Blob([textarea.value]);
fileWriter.truncate(blob.size);
fileWriter.onwriteend = function() {
fileWriter.onwriteend = function(e) {
console.log("Write completed.");
};
// fileWriter.write(blob);
}
}, errorHandler);
}
I guess it's possible, but I can not find how.
Thank you in advance!
To do this you need to use the DirectoryEntry API. To write to a new file you will need to use getFile to create a new file and write the contents into it.
To do this you also need to have access to the directory where you want to create the new file, and also permissions to create a file there. If the directory is within your sandboxed file system, this isn't a problem.
If you want to create the file on the user's file system it is more complicated. The user will need to have given your app access to the folder (via chrome.fileSystem.chooseEntry) and your app will need to have the chrome.fileSystem.directory and chrome.fileSystem.write permissions.
Below code to move the folder from one place to another. This code will move the folder. But, the outcome leaves the folder in a read-only state. I tried moving the folder instead of copy-delete. Even that does not help in here. How to overcome this.?
function CopyFolder(){
try{
var fileSystem = new ActiveXObject("Scripting.FileSystemObject");
var sourceFolder = document.getElementById("source").value;
var DestnFolder = document.getElementById("destn").value;
var myFolder;
if (!fileSystem.FolderExists(DestnFolder))
{
fileSystem.CreateFolder(DestnFolder);
}
myFolder = fileSystem.GetFolder(sourceFolder);
myFolder.Copy(DestnFolder);
//myFolder = fileSystem.GetFolder(sourceFolder);
//myFolder.Delete();
myFolder = null;
fileSystem = null;
return DestnFolder;
}
catch(err)
{
alert("error in moving Incident folder to Zip");
}
}
It would be very helpful, If there is any code to remove all dependencies or clear all object which holds any relationship with the fodler(Or content in fodler).
I have created an Air app that after user interaction will creat a folder with bmp's, xml and text doc's.
All works apart from making the final zip which needs to be automatic.
I have been looking for a solution to this but cant find it.
Perhaps I am just not seeing it, and if so, can someone show me please.
My original posting on this is here ---
zip many files with Air as3 flash
The closest thing I have found was this one --- zip a folder using fzip
But for some reason my coment was deleted which was --
I like this. It is the closest I have come to a working solution to my own problem. That said, I tested this and it works nicely as is. Can this script be moded to run without interaction??? I am in need of it for a program that I have written. ANY asistance is welcom........ apart from just pointing me to Adobe referance as it dose not have anything like what I need. (well that I can see or find)
So now I am re-asking the comunity.
For some reason it will work with manual selection and manual save-to, but not aotonomusly.
There must be a workround to this even if it requires another full page of script.
====================================================================
UPDATE:
For closing this off, I have finally got my solution.
You can find it here. "zip file contents have no data".
Hope that my problem can help someone in the future.
Try using the as3 commons zip library.
http://www.as3commons.org/as3-commons-zip/index.html
In order to do this you're going to need to load your directory, loop through all its contents and load each asset.
This code snippet includes a bulk loader to handle that for you.
warning
I pulled most of this code out of a project where I was doing something similar but I have not tested it as is. There may be some syntax errors!
private var zip:Zip;
zip = new Zip();
zip.addEventListener(IOErrorEvent.IO_ERROR, this.createNewZip); //creates a new zip
zip.addEventListener(Event.COMPLETE, handleZipLoaded); //loads the current zip, this is not shown here
zip.load(new URLRequest(File.applicationStorageDirectory.resolvePath("myZip.zip").url)); //path to your zip file
Method to create your new zip file
private function createNewZip(e:IOErrorEvent):void{
trace("no zip");
var stream:FileStream = new FileStream();
stream.open(File.applicationStorageDirectory.resolvePath("myZip.zip"), FileMode.WRITE);
zip.serialize(stream);
stream.close();
}
You can use this to add all items in a directory to your zip file.
private function addDirToZip():void{
var f:File = File.resolvePath("Your Dir");
//this will be called when your directory listing has loaded
f.addEventListener(FileListEvent.DIRECTORY_LISTING, handleDirLoaded);
//you can also get the dir listing inline and not use a listener
//doing it async will prevent ui lock
f.getDirectoryListingAsync();
}
Next your going to need to load all of the files
protected function handleDirLoaded(e:FileListEvent):void{
loadExternal = new Vector.<File>; //vector used to keep a handle on all files
e.target.removeEventListener(FileListEvent.DIRECTORY_LISTING, handleDirLoaded);
for(var i:int = 0 ; i < files.length ; i++){
var f:File = files[i] as File;
if(f.extension == "File Types you want"){ //you can do some file type checking here
loadExternal.push(f);
}
}
//start loading in the files
loadFile();
}
This will go through the loadExternal vector and load all files
private function loadFile():void{
currentFile = loadExternal.shift(); //returns the first item off the array
//load the file
var l:Loader = new Loader();
l.contentLoaderInfo.addEventListener(Event.COMPLETE, handleLoaded);
l.load(new URLRequest(currentFile.url));
}
Once each item is loaded you can store it for addition into the zip
private function handleLoaded(e:Event):void{
var l:Loader = e.target.loader as Loader;
l.contentLoaderInfo.removeEventListener(Event.COMPLETE, handleLoaded);
//storing everything in a dictionary
assets[currentFile.name] = l.content;
//if we still have items to load go and do it all again
if(loadExternal.length != 0){
loadFile();
} else {
//now all files are loaded so lets add them to the zip
addAssetsToZip();
}
}
This is where all the loaded files actually get put into the zip and it is saved
private funcion addAssetsToZip():void{
for(var fileName:String in assets){
var ba:ByteArray = new ByteArray(); //going to write this to the zip
//make an object that holds the data and filename
var data:Object = {};
data.name = fileName;
data.content = assets[fileName];
ba.writeObject(data);
//write this file to the zip
zip.addFile(key, ba, false);
}
//and finally save everything out
zip.close();
var stream:FileStream = new FileStream();
stream.open(File.applicationStorageDirectory.resolvePath("myZip.zip"), FileMode.WRITE);
zip.serialize(stream);
stream.close();
}
When using browseForSave method, is it possible to let the user choose only the location of a file, and not the file name or the extension?
I'm creating an encrypted file, and I need its name and extensions not to be changed by the user.
Thx!
EDIT (AFTER SOLVED)
I was simply looking for the browseForDirectory method. Shame on me. :)
For a reference on how to open a browse dialog to choose a folder see the example here:
How to create "Browse for folder" dialog in Adobe FLEX?
once you have your directory you can piece that together with code here to save a file using the FileStream object:
http://blog.everythingflex.com/2008/02/25/file-and-filestream-within-air/
copied here since it's an external link
private function saveFile():void{
var myPattern:RegExp = / /g;
var newFileName:String = fileName.text.replace('.txt','');
if(newFileName.length > 1){
var file:File = File.desktopDirectory.resolvePath("Files/" + newFileName.replace(myPattern,'_') + ".txt");
var stream:FileStream = new FileStream()
stream.open(file, FileMode.WRITE);
var str:String = contents.text;
str = str.replace(/\r/g, File.lineEnding);
stream.writeUTFBytes(str);
stream.close();
fdg.directory = File.desktopDirectory.resolvePath("Files/");
fileName.text = "";
contents.text = "";
} else {
mx.controls.Alert.show("File name is required", "Error Saving File");
}
}
One solution would be to set the file object like this:
var f:File = File.desktopDirectory.resolvePath("*.txt");
f.addEventListener(Event.SELECT, onSelected);
f.browseForSave("save txt file");
Although user can still override that in the opened dialog, but at least the dialog shows the file extension. And later in the Event.SELECT you can check and confirm what user has selected.
Is it possible to use pause/resume function to this??
source.copyTo( destination );
It would be great if you can send it at the earliest.
I found one solution here CookBook from Adobe
private function copyInto(directoryToCopy:File, locationCopyingTo:File):void
{
var directory:Array = directoryToCopy.getDirectoryListing();
for each (var f:File in directory)
{
if (f.isDirectory)
copyInto(f, locationCopyingTo.resolvePath(f.name));
else
f.copyTo(locationCopyingTo.resolvePath(f.name), true);
}
}
Or you could just use the File.copyTo() method:
var source:File = new File();
source.resolvePath( 'sourceFolder' );
var destination:File = new File();
destination.resolvePath( 'destinationFolder' );
source.copyTo( destination );
If the directories are large and you don't want your app to be stuck waiting for the copy, you can use copyToAsync, which will cause the source file to dispatch Event.COMPLETE when the job's done.
Here is the modified code from above if anyone wants to copy the entire directory; empty folders and all. Notice the "copyEmptyFolders" parameter to be used in the arguments.
//Recursivley copies directory.
private static function copyInto(directoryToCopy:File, locationCopyingTo:File, copyEmptyFolders:Boolean=true):void
{
var directory:Array = directoryToCopy.getDirectoryListing();
for each (var f:File in directory)
{
if (f.isDirectory)
{
// Copies a folder whether it is empty or not.
if( copyEmptyFolders ) f.copyTo(locationCopyingTo.resolvePath(f.name), true);
// Recurse thru folder.
copyInto(f, locationCopyingTo.resolvePath(f.name));
}
else
f.copyTo(locationCopyingTo.resolvePath(f.name), true);
}
}