Line 97: | Line 97: | ||
g++ -shared -lkdeui -lkio -lkdecore -fPIC -I/usr/local/include hello.cpp -o kio_hello.so | g++ -shared -lkdeui -lkio -lkdecore -fPIC -I/usr/local/include hello.cpp -o kio_hello.so | ||
+ | ''this does not complile if the qt headers are not in /usr/local/include | ||
+ | |||
+ | On my system I could fix it by changing -I/usr/local/include to -I/usr/include/qt4'' | ||
== Install the stuff == | == Install the stuff == | ||
Find out where your protocols are lying: | Find out where your protocols are lying: |
A kioslave allows you to represent any kind of storage in a way you want. As an example, the kio_http kioslave loads data from the network over the http (protocol) and shows it rendered as html. Technically, a kioslave is a shared object plus its description. E.g. the imap4 kioslave consist of the following files:
tweedleburg:/usr/local # find -iname "*imap4*" ./lib/kde4/kio_imap4.so ./share/kde4/services/imap4.protocol
We want to write a "hello world" kioslave here. This can be seen as a learning exercise and as a template for future programming projects.
PROJECT( tutorial ) FIND_PACKAGE(KDE4 REQUIRED) INCLUDE_DIRECTORIES( ${KDE4_INCLUDES} . ) set(kio_hello_PART_SRCS hello.cpp) kde4_add_plugin(kio_hello ${kio_hello_PART_SRCS}) target_link_libraries(kio_hello ${KDE4_KIO_LIBS}) install(TARGETS kio_hello DESTINATION ${PLUGIN_INSTALL_DIR}) ########### install files ############### install(FILES hello.protocol DESTINATION ${SERVICES_INSTALL_DIR})
/**
This class implements a hello-world kioslave */
class hello : public KIO::SlaveBase {
public: hello( const QByteArray &pool, const QByteArray &app ); void get( const KUrl &url );
};
extern "C" int KDE_EXPORT kdemain( int argc, char **argv )
{
kDebug(7000) << "Entering function"; KComponentData instance( "kio_hello" );
if (argc != 4) { fprintf( stderr, "Usage: kio_hello protocol domain-socket1 domain-socket2\n"); exit( -1 ); } hello slave( argv[2], argv[3] ); slave.dispatchLoop(); return 0;
}
void hello::get( const KUrl &url ) {
kDebug(7000) << "Entering function"; mimeType( "text/plain" ); QByteArray str( "Hello_world" ); data( str ); finished(); kDebug(7000) << "Leaving function";
}
hello::hello( const QByteArray &pool, const QByteArray &app )
[Protocol] DocPath=kioslave/kio_hello.html exec=kio_hello input=none output=filesystem protocol=hello reading=true
g++ -shared -lkdeui -lkio -lkdecore -fPIC -I/usr/local/include hello.cpp -o kio_hello.so
this does not complile if the qt headers are not in /usr/local/include
On my system I could fix it by changing -I/usr/local/include to -I/usr/include/qt4
Find out where your protocols are lying:
kde4-config --path services /usr/share/kde4/services/
cp kio_hello.so /usr/local/lib/kde4/ cp kio_hello.so /usr/lib64/kde4/ cp kio_hello.protocol /usr/share/kde4/services/
Start kinfocenter, choose hello as protocol. If this is possible, start konqueror, type hello:/// into the URL bar.