Lightboxes should close when user presses ESC

[nicholasbs]

It's pretty standard that lightboxes (i.e., dialogs like the ones in the new-dialogs branch) close when the user presses the escape key. This should be a configurable option that can be set globally.

[nicholasbs]

Changeset r1019 adds a new option for this called closeOnEscape (off by default). This can be set either for individual dialogs or using a global config, e.g.,

xinha_config.dialogOptions['closeOnEscape'] = true

r1019 also disables modeless dialogs, as their implementation is currently incomplete and there are no plugins that use them. The current issues include:

• new modeless dialogs can be inadvertently opened behind other dialogs
• there's no visual indication of which modeless dialog is activated/has focus
• closing a dialog does not cause the dialog behind it to gain focus
• showing a dialog does not cause it to become the active dialog
• you can type in a text field of a dialog even when it's not in the front, and doing so doesn't activate it

[nicholasbs]

This code still needs to be tested on more browsers, particularly Internet Explorer.

[nicholasbs]

To avoid confusion, r1020 pops up an alert that says modeless dialog support is incomplete should someone try to use one.

[ray]

there are no plugins that use them

Actually Stylist and CharacterMap use modeless dialogs and they work as expected

As I see it modeless dialogs don't require any activation or focus. They are "just there".

[ray]

see my comment (19) at #1176

[ray]

removed disabling of modelessness (didn't work anyway)

[nicholasbs]

Closing since the fix from r1019 has now been tested in IE and Opera.