Roberto Rocco Angeloni

Using Gecko.WebControl on Mono

I’ve tried to use gecko.WebControl on Mono under Ubuntu Linux and I kept on getting:

Unhandled Exception: System.TypeInitializationException: An exception was thrown by the type initializer for Gecko.WebControl ---> System.DllNotFoundException: /usr/lib/firefox/libgtkembedmoz.so
  at (wrapper managed-to-native) Gecko.WebControl:gtk_moz_embed_get_type ()
  at Gecko.WebControl.get_GType () [0x00000]
  at GtkSharp.GeckoSharp.ObjectManager.Initialize () [0x00000]
  at Gecko.WebControl..cctor () [0x00000] --- End of inner exception stack trace ---
  at <0x00000> 
  at SecondMessenger.gtk.MainWnd.initAdvertising () [0×00000]
  at SecondMessenger.gtk.MainWnd..ctor (SecondMessenger.SMClient client) [0×00000]
  at SecondMessenger.gtk.GTKClient.initUI () [0×00000]
  at SecondMessenger.SMClientManager.NewClient (System.String clientType) [0×00000]
  at SecondMessenger.SMClientManager..ctor (System.String clientType, System.Collections.Generic.List`1 accounts, System.Stringc) [0×00000]
  at SecondMessenger.Program.Esegui (System.String[] args) [0×00000]
  at SecondMessenger.Program.Main (System.String[] args) [0×00000]

That’s why even if the /usr/lib/firefox/libgtkembedmoz.so library is there is not visible to the LD_PATH.

So I’ve tryed different solutions and i wrote this shell script:

if test -n "$MOZILLA_FIVE_HOME"; then
    MOZILLA_HOME=$MOZILLA_FIVE_HOME
elif test x/usr/lib/firefox != x; then
    if [ -f /usr/lib/firefox/chrome/comm.jar ]; then
            MOZILLA_FIVE_HOME=/usr/lib/firefox
            MOZILLA_HOME=$MOZILLA_FIVE_HOME
    fi
elif [ $(which xulrunner 2> /dev/null) ] > /dev/null ; then
        MOZILLA_FIVE_HOME=`getdirectory xulrunner`
        MOZILLA_HOME=$MOZILLA_FIVE_HOME
elif [ $(which mozilla 2> /dev/null) ] && grep MOZILLA_FIVE_HOME= "$(which mozilla)" > /dev/null ; then
        MOZILLA_FIVE_HOME=$(grep MOZILLA_FIVE_HOME= $(which mozilla) | cut -d '"' -f 2)
        MOZILLA_HOME=$MOZILLA_FIVE_HOME
elif [ $(which firefox 2> /dev/null) ] && grep MOZILLA_FIVE_HOME= "$(which firefox)" > /dev/null ; then
        MOZILLA_FIVE_HOME=$(grep MOZILLA_FIVE_HOME= $(which firefox) | cut -d '"' -f 2)
        MOZILLA_HOME=$MOZILLA_FIVE_HOME
fi

if [ -n $LD_LIBRARY_PATH ]; then
        export LD_LIBRARY_PATH=$MOZILLA_HOME:$LD_LIBRARY_PATH
else
        export LD_LIBRARY_PATH=$MOZILLA_HOME
fi
export MOZILLA_FIVE_HOME
export MOZILLA_HOME
export LD_LIBRARY_PATH

exec /usr/bin/mono --debug ./SecondMessenger.exe "$@"

The last line execute my program (SecondMessenger.exe) and you can change it with your program name.

Unfortunately this solution doesn’t work under Mac OSX if you have any suggestion send it to me.

Enjoy,
Roberto.

Tags: C#, Gecko, Mono

This entry was posted on Wednesday, March 19th, 2008 at 4:57 pm and is filed under Linux, Mono, Second Messenger, Ubuntu. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

One Response to “Using Gecko.WebControl on Mono”

pkdaly Says:
March 31st, 2008 at 11:15 pm
Hi Roberto,

Thanks for the script. I modified it slightly so that it can fall-back on the seamonkey package. In my case, I run OpenSUSE 10.3 and the latest firefox packages don’t include libgtkembedmoz.so.

Here’s what I have:

if test -n "$MOZILLA_FIVE_HOME"; then MOZILLA_HOME=$MOZILLA_FIVE_HOME elif test x/usr/lib/firefox != x; then if [ -f /usr/lib/firefox/chrome/comm.jar ]; then if [ -f /usr/lib/firefox/libgtkembedmoz.so ]; then MOZILLA_FIVE_HOME=/usr/lib/firefox MOZILLA_HOME=$MOZILLA_FIVE_HOME elif [ -f /usr/lib/seamonkey/chrome/comm.jar ]; then if [ -f /usr/lib/seamonkey/libgtkembedmoz.so ]; then MOZILLA_FIVE_HOME=/usr/lib/seamonkey MOZILLA_HOME=$MOZILLA_FIVE_HOME fi fi fi elif [ $(which xulrunner 2> /dev/null) ] > /dev/null ; then MOZILLA_FIVE_HOME=`getdirectory xulrunner` MOZILLA_HOME=$MOZILLA_FIVE_HOME elif [ $(which mozilla 2> /dev/null) ] && grep MOZILLA_FIVE_HOME= "$(which mozilla)" > /dev/null ; then MOZILLA_FIVE_HOME=$(grep MOZILLA_FIVE_HOME= $(which mozilla) | cut -d '"' -f 2) MOZILLA_HOME=$MOZILLA_FIVE_HOME elif [ $(which firefox 2> /dev/null) ] && grep MOZILLA_FIVE_HOME= "$(which firefox)" > /dev/null ; then MOZILLA_FIVE_HOME=$(grep MOZILLA_FIVE_HOME= $(which firefox) | cut -d '"' -f 2) MOZILLA_HOME=$MOZILLA_FIVE_HOME elif [ $(which seamonkey 2> /dev/null) ] && grep MOZILLA_FIVE_HOME= "$(which seamonkey)" > /dev/null ; then MOZILLA_FIVE_HOME=$(grep MOZILLA_FIVE_HOME= $(which seamonkey) | cut -d '"' -f 2) MOZILLA_HOME=$MOZILLA_FIVE_HOME fi
if [ -n $LD_LIBRARY_PATH ]; then export LD_LIBRARY_PATH=$MOZILLA_HOME:$LD_LIBRARY_PATH else export LD_LIBRARY_PATH=$MOZILLA_HOME fi export MOZILLA_FIVE_HOME export MOZILLA_HOME export LD_LIBRARY_PATH pwd
exec /usr/bin/mono --debug ./SecondMessenger.exe "$@"

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Using Gecko.WebControl on Mono

One Response to “Using Gecko.WebControl on Mono”

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