Wt

My app's logic:

1. click a button
2. change internal path to '/alice/'
3. handlePathChange: append the text value of current internal path to the page
4. as a result, the string '/alice/' will appear after the button.

Those works fine in ajax session.

But in non-ajax session, my app gets TWO internalPathChanged() signal, the 1st is handlePathChange( '/alice/' ), the 2nd is handlePathChange( '/' ), finally I get '/alice//' appended.

Code for reproduction:

#include <Wt/WContainerWidget>
#include <Wt/WPushButton>
#include <Wt/WText>

using namespace Wt;

class MyApp : public WApplication
{
public:

    MyApp(const WEnvironment& env)
        : WApplication(env)
    {
        WPushButton* button = new WPushButton( "click to see alice", root() );
        button->clicked().connect( this, &MyApp::changePath );
        internalPathChanged().connect( this, &MyApp::handlePathChange );
    }

    void changePath() { setInternalPath( "/alice/", true ); }

    void handlePathChange( std::string path )
    {
        std::cout << "handlePathChange " << path << std::endl;
        new WText( path, root() );
    }
};

WApplication *createMyApplication(const WEnvironment& env)
{
    return new MyApp(env);
}

int main(int argc, char **argv)
{
    return WRun(argc, argv, &createMyApplication);
}