Bit Fog

In order to take advantage of GWT’s caching functionality on Apache servers, you need to set up an .htaccess config file in your GWT’s application directory on your Apache server as shown in Google’s Perfect Caching documentation.

The .htaccess configuration depends on the Apache mod_expires and mod_headers modules.

To enable the mod_expires module:

sudo a2enmod expires
									

To enable the mod_headers module:

sudo a2enmod headers
									

If these modules are already enabled, Apache will notify you after issuing the command.  If they are not, you’ll need to restart Apache:

 /etc/init.d/apache2 restart
									

FileUpload does not respond properly to the setWidth method on FireFox.  The width of the box is changed in Chrome but not on FireFox.  I was seemingly unable to set the width on the FileUpload box.

FileUpload uploadFloorPlan = new FileUpload();      
uploadFloorPlan.setWidth("14em");
									

A workaround provided by Roy on GWT Groups that reflects the change on FireFox and Chrome:

FileUpload uploadFloorPlan = new FileUpload();

Element ee = uploadFloorPlan.getElement();
DOM.setElementAttribute((com.google.gwt.user.client.Element) ee, "size", "14em"); 
									

The Eclipse Juno key scheme has changed the redo key (Ctrl-Y) for the default scheme.  It was changed to Ctrl-Shift-Z, a sequence that isn’t intuitive for me.  Like most of the time with Eclipse, it’s an easy fix to modify the Key Scheme.

Preferences->General->Keys allows you to modify key schemes and/or choose a new scheme all together.

My content assist stopped working when I installed Juno.  Ctrl+Space just returned an empty pop-up.  My problem was that there were no proposals selected for the ‘default’ content assist list.  Checking ‘Java Non-Type Proposals’ did the trick.

Content Proposals can be found in:

Preferences->Editor->Content Assist->Advanced

Thanks mkyong for pointing me in the right direction.

addKeyPressHandler does not fire as expected in Firefox for keys Enter, Esc and Tab.

For example, the following works in IE and Google Chrome as expected, but not in Firefox:

tbCaseNumber.addKeyPressHandler(new KeyPressHandler() {
     public void onKeyPress(KeyPressEvent event) {
       if (event.getCharCode() == KeyCodes.KEY_ENTER) {
         getCase();
       }
     }
});
									

In order for the getCase() method to be called as expected on Firefox, you must use KeyDownHander:

tbCaseNumber.addKeyDownHandler(new KeyDownHandler() {
  @Override
  public void onKeyDown(KeyDownEvent event) {
    if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
         getCase();
       }  
  }
});