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Bug #3534 ยป hello.C

Florian Ransmayr, 08/26/2014 01:35 PM

 
#include <Wt/WApplication>
#include <Wt/WContainerWidget>
#include <Wt/WMenu>
#include <Wt/WStackedWidget>
#include <Wt/WTextArea>
#include <Wt/WBootstrapTheme>
#include <Wt/WImage>

using namespace Wt;

class HelloApplication : public WApplication
{
public:
HelloApplication(const WEnvironment& env);

private:
void konfigMenuItem(WMenuItem *menuItem);

void mouseUp(const Wt::WMouseEvent &e);

private:
WImage *m_dragImage;
WTextArea *m_infoTextArea;
};

HelloApplication::HelloApplication(const WEnvironment& env)
: WApplication(env), m_dragImage(0)
{
setTitle("WMenu draggable + contextMenu"); // application title

WBootstrapTheme *theme = new WBootstrapTheme(this);
theme->setVersion(WBootstrapTheme::Version3);
setTheme(theme);

// Create a stack where the contents will be located.
Wt::WStackedWidget *contents = new Wt::WStackedWidget();

Wt::WMenu *menu = new Wt::WMenu(contents, Wt::Vertical, root());
menu->setStyleClass("nav nav-pills nav-stacked");
menu->setWidth(150);

WMenuItem *item = 0;
// Add menu items using the default lazy loading policy.
item = menu->addItem("Drag Me", new WTextArea("Draggable WMeniItem that should have right click context menu as well."));
konfigMenuItem(item);
item = menu->addItem("Drag Me 2", new WTextArea("Another draggable WMeniItem that should have right click context menu as well."));
konfigMenuItem(item);

root()->addWidget(contents);

m_infoTextArea = new WTextArea("Drag the WMenuItems in the WMenu or right click on them." ,root());
}

void HelloApplication::konfigMenuItem(WMenuItem *menuItem)
{
if( 0 == menuItem )
return;

if( 0 == m_dragImage )
{
m_dragImage = new Wt::WImage("resources/items-ok.gif", root());
m_dragImage->hide();
}

//If the following line is remved the mouseWentUp signal is received.
menuItem->setDraggable("test", m_dragImage, true);

menuItem->setAttributeValue("oncontextmenu",
"event.cancelBubble = true; event.returnValue = false; return false;");
menuItem->mouseWentUp().connect(this, &HelloApplication::mouseUp);
}

void HelloApplication::mouseUp(const Wt::WMouseEvent &e)
{
//only react to right button clicks
if( e.button() != WMouseEvent::RightButton )
return;

if( 0 != m_infoTextArea )
m_infoTextArea->setText("MouseWentUp signal received.");

}

WApplication *createApplication(const WEnvironment& env)
{
return new HelloApplication(env);
}

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

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