Chui's Counterpoint

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1. mikeal 3.7.09 / 8am

   I think there is a way to do this in javascript with Canvas, although you would be limited to the content portion of the browser.
2. Chui 3.10.09 / 10pm

   I must have been channeling someone. Look at this: Mozilla 2009 Design Challenge: SxSW Edition – a better upload button
3. jfileupload 3.26.09 / 2am

   Why not using an existing upload applet that supports cross-browsers and HTTP multifiles upload ? You have one at:
   http://www.jfileupload.com/products/jfileupload/index.html
4. anomaly0617 10.14.11 / 5am

   Love this concept, even 2 years later! Can you give me a short snippet on what the best mechanism is to integrate this into an HTML form would be? for instance, if my hidden field id is hiddenscreencap:

   (I’m substituting []‘s for ‘s to avoid any HTML confusion)

   [textarea id="hiddenscreencap" name="hiddenscreencap" style="display:none;"][/textarea]

   How do I:

   a) tell the browser in question to access the jar file and run it? Is it as simple as this?:

   [script language="javascript" src="SImageUploadApplet.jar"][/script]

   And how do I pass the id/name of the field to the jar applet to tell it where to dump the data it gets from the paste?

   Thanks, in advance!

   -Paul
5. anomaly0617 10.14.11 / 5am

   Oops – script tag above was supposed to be an Applet tag. That’s not an issue anymore – The bigger one is how to tell the jar file what name/id to dump the data to!
6. Chui 10.14.11 / 8pm

   It is hard coded to id=”image”. Have a look at Main.java

   public void setField()
   {
   final Object applet = this;
   try {
   DOMService service = DOMService.getService(this);
   service.invokeAndWait(new DOMAction()
   {
   public Object run(DOMAccessor accessor) {
   Element e = accessor.getDocument(applet).getElementById(“image”);

   if (e != null)
   e.setAttribute(“value”, getImageAsBase64());

   return null;
   }
   });
   } catch (DOMAccessException ex) {
   Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
   } catch (DOMUnsupportedException ex) {
   Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
   }

   }
7. Oleg 10.25.11 / 1am

   Please advise on how to save encoded image into image file.

   I get error ‘This is not a valid bitmap file’ when I try to open this file.

   My code:

   File imageToFile = new File(“c:/Temp/saved.png”);
   imageToFile.createNewFile();

   //Save into To File
   byte[] bytes = {value of hidden field}.getBytes();
   FileOutputStream fos = new FileOutputStream(imageToFile);
   fos.write(bytes);
   fos.flush();
   fos.close();

   Thank you in advanced.
8. Oleg 10.25.11 / 2am

   Please disregard my previous comment.

   I realized that we need to use decoding functionality like:

   boolean created = Base64.decodeToFile({value of hidden field}, “c:/Temp/saved.png”);

   Thank you for your help. This is great and very very useful for help desk support applications.

   Oleg

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