[dash] applications with capital letters in their desktop file name cannot be launched

[Andrew Hayzen]

Hi

Description: Ubuntu 10.10
Release: 10.10
unity-2d:
  Installed: 0.4-0ubuntu1~bzr405
  Candidate: 0.4-0ubuntu1~bzr405
  Version table:
 *** 0.4-0ubuntu1~bzr405 0
        500 http://ppa.launchpad.net/unity-2d-team/unity-2d-daily/ubuntu/ maverick/main i386 Packages
        100 /var/lib/dpkg/status

What Happened:
When I click on some applications in unity (from the main applications menu [dash]) it doesn't actually start the application. I have to then manually run the application from terminal.
Some examples of this:
Search And Rescue - Command: SearchAndRescue
xplanetFX - Command: xplanetFX

What I expected to happen:
I expected unity to start the application as normal.

A side note: It wouldn't be to do with the capital letters in the commands would it?

Also SearchAndRescue and xplanetfx are available from the USC, if you need to test them.

Hope this can be fixed soon.

Andy

[Florian Boucault (fboucault)]

Andy, this bug report is fantastic. You absolutely nailed it with "It wouldn't be to do with the capital letters in the commands would it?"

Programs with capital letters in the names of their .desktop files are not launchable because of some bug in the backend layers:
- xplanetFX
- Search And Rescue
- fbreader

[Olivier Tilloy (osomon)]

The cause of the problem is not in the backends (place daemons, libdee, …), but in Unity-2d itself.

For e.g. SearchAndRescue, the backend correctly return "application://SearchAndRescue.desktop" for the desktop file name. However, at the QML level, this value is assigned to a property with type url (QUrl), and this is where the case is lost. According to the documentation (http://doc.qt.nokia.com/latest/qurl.html#FormattingOption-enum):

« Note that the case folding rules in Nameprep, which QUrl conforms to, require host names to always be converted to lower case, regardless of the Qt::FormattingOptions used. »

In this case, "application" is the scheme and "SearchAndRescue.desktop" is considered as the host name, thus being converted to lower case.

This can be fixed by changing the type of the property to string instead of url.

[Florian Boucault (fboucault)]

Backported in Maverick branch.

[Alex Chiang (achiang)]

Backported to Charlotte, confirmed that an app like FBReader launches successfully from dash.

[Joaquin (jknvv13)]

Fixed.
PlayOnLinux working. :)

2011/3/17 Alex Chiang <email address hidden>

> Backported to Charlotte, confirmed that an app like FBReader launches
> successfully from dash.
>
> ** Changed in: charlotte
> Assignee: (unassigned) => Alex Chiang (achiang)
>
> ** Changed in: charlotte
> Milestone: None => m4-rc1
>
> ** Changed in: charlotte
> Importance: Undecided => High
>
> ** Changed in: charlotte
> Status: Confirmed => Fix Committed
>
> --
> You received this bug notification because you are a direct subscriber
> of a duplicate bug (729082).
> https://bugs.launchpad.net/bugs/723604
>
> Title:
> [dash] applications with capital letters in their desktop file name
> cannot be launched
>
> Status in The Charlotte project:
> Fix Committed
> Status in Unity 2D:
> Fix Committed
>
> Bug description:
> Hi
>
> Description: Ubuntu 10.10
> Release: 10.10
> unity-2d:
> Installed: 0.4-0ubuntu1~bzr405
> Candidate: 0.4-0ubuntu1~bzr405
> Version table:
> *** 0.4-0ubuntu1~bzr405 0
> 500 http://ppa.launchpad.net/unity-2d-team/unity-2d-daily/ubuntu/maverick/main i386 Packages
> 100 /var/lib/dpkg/status
>
> What Happened:
> When I click on some applications in unity (from the main applications
> menu [dash]) it doesn't actually start the application. I have to then
> manually run the application from terminal.
> Some examples of this:
> Search And Rescue - Command: SearchAndRescue
> xplanetFX - Command: xplanetFX
>
> What I expected to happen:
> I expected unity to start the application as normal.
>
> A side note: It wouldn't be to do with the capital letters in the
> commands would it?
>
> Also SearchAndRescue and xplanetfx are available from the USC, if you
> need to test them.
>
> Hope this can be fixed soon.
>
> Andy
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/charlotte/+bug/723604/+subscribe
>

[Sean Feole (sfeole)]

tested on build 20110321-0, moved FBreader to the dash and launched, application started up.