[webkit-dev] Problem building/running Webkit with QT4 on Ubuntu

Lionel Jive lionel.jive at gmail.com
Wed Oct 17 03:34:41 PDT 2007


thanks for your answer.

i had to change WebCore/dom/XMLTokenizer.cpp as it refer to 
QXmlStreamReader::NotWellFormedError instead of 
QXmlStreamReader::XmlNotWellFormedError, and it call 
QXmlStreamReader.hasError() which doesn't exist in libqt4-dev-kdecopy.

when i look at the error message:

FIXME: UNIMPLEMENTED: ../../../WebCore/platform/qt/WidgetQt.cpp:120 (virtual void WebCore::Widget::show())

and at the file WidgetQt.cpp, the code is:
void Widget::show()
    if (data->m_widget)
       data->m_widget->show() ;
       notImplemented() ;

that's why i think i missing a dynamic library.   what do you think ?

I my understanding libqt4-dev-kdecopy, should be for kde.   do you have 
it install on your system ?

Julien Chaffraix wrote:
> Hi,
>     1. i fetched webkit from here
>     http://svn.webkit.org/repository/webkit/trunk
>     <http://www.qtforum.org/redir.php?url=http%3A%2F%2Fsvn.webkit.org%2Frepository%2Fwebkit%2Ftrunk>
>     2. i installed libqt4-dev-kdecopy with: apt-get install
>     libqt4-dev-kdecopy, as qt4.3 was needed (libqt4-dev is qt4.2.3)
>     3. then i build with: QTDIR=/usr/share/qt4/
>     WebKit/WebKitTools/Scripts/build-webkit
>     the build failed 2 or 3 times, like some class api were missing or
>     class reference missing. Anyway it was easy to fix, so i restart
>     the build and it complete successfully.
> Did the changes you made were in your environment (installed libraries 
> ...) or Webkit source ?
> The trunk should compile on your platform without modification if you 
> have all the necessary tools and libraries.
> I am using Ubuntu too so I just tried that package you mentioned and I 
> could compile and run webkit without problem.
> Could you try to remove all Webkit files (source and builds) and 
> follow the explanation on the webkit page again and report if 
> something went wrong ?
>     4. then i run the browser with: QTDIR=/usr/share/qt4/
>     WebKit/WebKitTools/Scripts/run-launcher
>     the browser starts, but display the blank window, then whatever
>     address i try to browse the window remain blank, while the console
>     display such message:
>     FIXME: UNIMPLEMENTED: ../../../WebCore/platform/qt/WidgetQt.cpp:120 (virtual void WebCore::Widget::show())
>     FIXME: UNIMPLEMENTED: ../../../WebKit/qt/WebCoreSupport/FrameLoaderClientQt.cpp:195 (virtual void WebCore::FrameLoaderClientQt::forceLayoutForNonHTML())
>     i had a look at WebCore/platform/qt/WidgetQt.cpp, and it seems the
>     data member m_widget is not initialized and so it display the
>     UNIMPLEMENTED error message.
>     I have to say that i'm a newbie at Linux and Webkit, so my
>     questions below might be silly smile
>     1. i find it strange that i had to fix some compile problem as it
>     seem to me that WebKit was already ported to QT4. Am i using the
>     right svn trunk ?
> There is only one trunk in svn and the url you gave is the right one.
>     2. am i missing some library ? i've installed libqt4-dev-kdecopy
>     only, do i need libqt4-core-kdecopy ? is there any other dependency ?
> According to 
> http://packages.ubuntu.com/feisty/libdevel/libqt4-dev-kdecopy 
> <http://packages.ubuntu.com/feisty/libdevel/libqt4-dev-kdecopy> , 
> liqt4-dev-kdecopy depends on liqt4-core-kdecopy so it is already 
> installed. Normally if you have managed to compile and run the 
> application, that means that you have the required libraries.
>     3. i also find strange that the folder WebKit\WebKitQt\QtLauncher
>     is always empty, shouldn't it have some QtLauncher.pro and other
>     files ?
>     4. can somebody also recommend me a good development tools/ide on
>     Linux for C++ development. 
> You have a wide range of development tools under linux. It will widely 
> depend on what you want as a development environment. 
> You could use an editor like vim, emacs, gedit or Kate and do the 
> compilation in a terminal or an IDE like Anjuta (designed for C/C++), 
> Eclipse (mainly for Java but has a C/C++ extension) or KDevelop. That 
> list is far from exhaustive.
> You should just try some and take the one that suits you most.
> Hope it helps,
> Julien

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