#include "customgui_htmlviewer.h"

static CustomGuiHtmlViewerLib *lib_HtmlViewer = nullptr;


static CustomGuiHtmlViewerLib *CheckLib(Int32 offset)
{
	return (CustomGuiHtmlViewerLib*)CheckLib(CUSTOMGUI_HTMLVIEWER,offset,(C4DLibrary**)&lib_HtmlViewer);
}

#define HtmlViewerCall(b) 			CustomGuiHtmlViewerLib *lib = CheckLib(LIBOFFSET(CustomGuiHtmlViewerLib, b)); \
															if (!lib || !lib->b) return; \
															(((iHtmlViewerCustomGui*)this)->*lib->b)

#define HtmlViewerCallR(a,b) 		CustomGuiHtmlViewerLib *lib = CheckLib(LIBOFFSET(CustomGuiHtmlViewerLib, b)); \
															if (!lib || !lib->b) return a; \
															return (((iHtmlViewerCustomGui*)this)->*lib->b)

void HtmlViewerCustomGui::SetUrl( const String &str, Int32 encoding )
{
	HtmlViewerCall(SetUrl)( str, encoding );
}

String HtmlViewerCustomGui::GetTextArea(const String &id)
{
	HtmlViewerCallR(String(),GetTextArea)(id);
}

void HtmlViewerCustomGui::SetText( const String &str)
{
	HtmlViewerCall(SetText)( str);
}

void HtmlViewerCustomGui::DoAction(Int32 action)
{
	HtmlViewerCall(DoAction)(action);
}

void	HtmlViewerCustomGui::SetURLCallback( HtmlViewerCustomGuiURLCallback *callback, void *user_data )
{
	HtmlViewerCall(SetURLCallback)( callback, user_data );
}

//----------------------------------------------------------------------------------------
// Convert a local filename to a proper URL for a web browser
// Function result:		url string
// f:									name of local html file
// encoding:					used to return the encoding (URL_ENCODING_ESCAPED or URL_ENCODING_UTF16)
//----------------------------------------------------------------------------------------
String	HtmlViewerCustomGui::FilenameToURL( const Filename &f, Int32 *encoding )
{
	CustomGuiHtmlViewerLib *lib = CheckLib(LIBOFFSET(CustomGuiHtmlViewerLib, FilenameToURL));
	if (!lib || !lib->FilenameToURL) return String();

	return lib->FilenameToURL(f, encoding);
}