Opera

Opera OLPC Edition

Opera has made a special Opera OLPC Edition package. Screenshots are available here.

Opera is more than a secure web browser, it's also an RSS and Atom feed reader, bittorrent client, email client, and IRC client. It also has many keyboard shortcuts that make navigating on the XO easy.

Installing Opera

There are two parts to installing Opera on the XO:

1. install the "Opera RPM"; this step is required.
2. install the "Opera activity"; this step is optional.

Installing the Opera RPM

Before you begin, make sure you are connected to the Internet!

Then from the Terminal activity :

1. Download and install Opera by typing the following rpm command (You need "root" privileges, hence the "su" command):

su -
rpm -vi http://snapshot.opera.com/unix/olpc-544/opera-9.12-20070122.10-static-qt.i386-en.rpm

If you see an error message such as:

error: skipping http://... - transfer failed - Unknown or unexpected error

chances are you are either not connected to the Internet or you made a typo.

If you see an error message such as:

error: can't create transaction lock on /var/lib/rpm/...

you probably forgot to "su" before the "rpm" command.

2. Run Opera by tying:

opera

You exit Opera by going to the Home view () and clicking on the Stop entry in the hover menu over the gray circle that appears in the Activity circle.

You can follow the instructions below to install Opera as a Sugar activity or run it from the Terminal activity as per above.

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This installs the OLPC Edition, a snapshot of version 9.12. To learn about the most recent builds of Opera, check the Opera desktop blog and select the statically linked rpm packages for Unix/intel-linux.

If you are having trouble with rpm, try grabbing a "tarball":

wget http://snapshot.opera.com/unix/olpc-544/opera-9.12-20070122.10-static-qt.i386-en-544.tar.bz2
tar xvf opera-9.12-20070122.10-static-qt.i386-en-544.tar.bz2
cd opera-9.12-20070122.10-static-qt.i386-en-544
su -
./install.sh
exit

Installing the Opera activity

The Opera activity is not yet packaged as an XO bundle, so the installation process is a bit more complicated than we'd like.

In order for Opera to appear in the list of activities on the Frame taskbar, an extra set of files must be installed. Again, be sure your Internet connection is working; from the Terminal activity :

1. create the directory /home/olpc/Activities

mkdir /home/olpc/Activities

If the directory already exists, you may get an error message, which you can ignore:

mkdir: cannot create directory 'Activities': File exists

2. go to /home/olpc/Activities

cd /home/olpc/Activities

3. download the Opera activity

wget http://people.opera.com/howcome/2007/olpc/opera-activity.tar.gz

You may see similar error messages as described above, for similar reasons.

4. install the Opera activity

tar xvzf opera-activity.tar.gz

5. clean up

rm opera-activity.tar.gz

In order for the change to take effect, restart Sugar (Ctrl+Alt+erase). You should see the Opera icon on the taskbar (you may have to scroll to the right in order to find it).

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Note: There is at present an incompatibility between the Opera activity and the OLPC Rainbow security system on some builds. If when you launch the Opera activity, the screen goes blank and stays blank, you have likely encountered that incompatibility. The current work-around is to launch Opera from the Terminal activity by typing:

opera

The Opera activity files have been developed by the CERTI Foundation, a R&D foundation in Brazil that is testing the OLPC's XO for the Brazilian government. We are grateful to João Bosco A. Pereira Filho and Gustavo Maestri for their work on this.

Keyboard Shortcuts

Opera offers keyboard shortcuts that may come handy:

• q/a navigates up/down in links
• w/s navigates up/down in headings
• 9/0 zooms page out/in
• z/x navigates back/forward in history
• ctrl t open a new tab
• ctrl l focus and highlight the page url

Known problems

• Widgets are not yet usable
• Opera is not fully integrated into the Sugar UI. In particular, the Opera process does not die when the activity is terminated. In order to terminate Opera, open a shell and run a "kill" command; or simply stop it using the stop option from the hover menu on the Activity circle in the Home view.
• There is at present an incompatibility between the Opera activity and the OLPC Rainbow security system on some builds. If when you launch the Opera activity, the screen goes blank and stays blank, you have likely encountered that incompatibility.
• Due to the high pixel density, one "px" should probably be mapped to two pixels. Opera currently does not do this (what about the zoom feature? you could set default zoom to 200% in prefs). It helps to set opera:config#UserPrefs|ForceDPI to 200 and restart Opera, this will change fonts in the UI that are not previously set explicitly, as well as fonts in websites that are set with points.
• The Chat (IRC) tool doesn`t seem to work when connecting to irc.freenode.net.

Third-party (plug-ins and Java)

Installing Flash in Opera

• Download the flash plugin rpm file from http://www.adobe.com and install it: rpm -vi flash-plugin.XXXXX.rpm

Installing Java in Opera

• Download the JRE from http://java.sun.com and install it
• Then you need to create a symbolic link in opera plugin directory
  • cd /usr/lib/opera/plugins
  • ln -s /path/to/javajre/lib/i386 (e.g., /usr/java/jrel.6.8/lib/i386)