topic Re: Handle events from browser control DG::Browser in Archicad C++ API

Handle events from browser control DG::Browser

Martin Walter — Thu, 29 Sep 2022 07:35:39 GMT

How can I recognize an event from the browser control DG::Browser, for example the URLChanged which is declared in BrowserBase?

Re: Handle events from browser control DG::Browser

Ralph Wessel — Wed, 05 Feb 2020 13:55:11 GMT

Use the += operator of BrowserBase::urlChanged to add a Runnable callback function to respond to this event.

Re: Handle events from browser control DG::Browser

Martin Walter — Fri, 07 Feb 2020 14:52:06 GMT

Sorry I'm not able to make it. My code does not compile in this line:

DGEventNotifier<BrowserBase, DG::BrowserURLChangedArg>::Runnable func = &UIBrowser::URLChanged;

Can you please tell me what is wrong?

My whole code is:


class UIBrowser: public DG::Browser
{
public:
	UIBrowser(const DG::Panel& panel, short item);

private:
	virtual void URLChanged(const DG::BrowserURLChangedArg& eventArg) override;
};

UIBrowser::UIBrowser(const DG::Panel& panel, short item) :
	DG::Browser(panel, item)
{
	DGEventNotifier<BrowserBase, DG::BrowserURLChangedArg>::Runnable func = &UIBrowser::URLChanged;
	this->urlChanged += func;
}

void UIBrowser::URLChanged(const DG::BrowserURLChangedArg& eventArg)
{
...
}

Re: Handle events from browser control DG::Browser

Ralph Wessel — Fri, 07 Feb 2020 15:22:31 GMT

Martin wrote:
I'm not able to make it. My code does not compile in this line:
DGEventNotifier<BrowserBase, DG::BrowserURLChangedArg>::Runnable func = &UIBrowser::URLChanged;

Try changing this to:

this->urlChanged += DGEventNotifier<DG::BrowserBase, DG::BrowserURLChangedArg>::Runnable(UIBrowser::URLChanged);

Re: Handle events from browser control DG::Browser

Martin Walter — Fri, 07 Feb 2020 15:32:52 GMT

that doesn't compile too.
and neither:

this->urlChanged += DGEventNotifier<DG::BrowserBase, DG::BrowserURLChangedArg>::Runnable(&UIBrowser::URLChanged);

Re: Handle events from browser control DG::Browser

Ralph Wessel — Fri, 07 Feb 2020 15:48:00 GMT

The urlChanged function should look more like this:

void UIBrowser::URLChanged(const DG::BrowserBase& source, const DG::BrowserURLChangedArg& eventArg)

Re: Handle events from browser control DG::Browser

Martin Walter — Fri, 07 Feb 2020 17:05:38 GMT

Obviously the callback function can not be defined in a class. I got it working finally this way:


void handleURLChanged(const DG::BrowserBase& source, const DG::BrowserURLChangedArg& eventArg);

m_browser.urlChanged += DGEventNotifier<DG::BrowserBase, DG::BrowserURLChangedArg>::Runnable(&handleURLChanged);