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#import "MiscURICell.h"
#import <misckit/misckit.h>
//---------------------------------------------------------------------------------------
NXAtom W3URIPboardType=NULL;
//---------------------------------------------------------------------------------------
@implementation MiscURICell:Cell
//---------------------------------------------------------------------------------------
/*" blah...
When a double-click is detected the cell tries to open its URL with the
help of some other application. This application must offer a service menu
that accepts either WebStep URIs or Plain Ascii Text that is interpreted as
a URL. The default value %URLService specifies the name of the service
menu item of the application in question, eg. to use Netsurfer(TM) the value
should be `Netsurfer/Open URL' If no value is found the cell tries to use
OmniWeb(TM).
"*/
//---------------------------------------------------------------------------------------
+ initialize
//---------------------------------------------------------------------------------------
/*" Stores the uniqued string 'WebStep Universal Resource Identifier 1.0' in the
global variable #W3URIPboardType. "*/
{
W3URIPboardType=NXUniqueStringNoCopy("WebStep Universal Resource Identifier 1.0");
return self;
}
//---------------------------------------------------------------------------------------
- init;
//---------------------------------------------------------------------------------------
/*" Initialises and returns the receiver, a new icon Cell instance (that is, its
type is NX_ICONCELL) with a NULL-URI. The icon is set to an
NXImage with the name `URI' that should be located in an appropriate place.
If it is not found, the Cell wont be initialised and %nil is returned. "*/
{
NXImage *uriTiff=[NXImage findImageNamed:"URI"];
if(!uriTiff)
return nil;
[super init];
[self setIcon:"URI"];
return self;
}
//---------------------------------------------------------------------------------------
- initURICell:(const char *)aURI;
//---------------------------------------------------------------------------------------
/*" Initialises and returns the receiver, a new icon Cell instance (that is, its
type is NX_ICONCELL) with the specified URI. The icon is set to an
NXImage with the name `URI' that should be located in an appropriate place.
If it is not found, the Cell wont be initialised and %nil is returned. "*/
{
if(![self init])
return nil;
[self setURI:aURI];
return self;
}
//---------------------------------------------------------------------------------------
- (void)setURI:(const char *)aURI;
//---------------------------------------------------------------------------------------
/*" Copies %aURI as the receiver's contents. "*/
{
if(uri)
NXZoneFree([self zone],uri);
uri=NXCopyStringBufferFromZone(aURI,[self zone]);
}
//---------------------------------------------------------------------------------------
- (const char *)uri;
//---------------------------------------------------------------------------------------
/*" Returns the URI that the Cell represents "*/
{
return uri;
}
//---------------------------------------------------------------------------------------
+ (BOOL)prefersTrackingUntilMouseUp;
//---------------------------------------------------------------------------------------
/*" Since we want "our" cell to be dragged around everywhere we return #YES. "*/
{
return YES;
}
//---------------------------------------------------------------------------------------
- (BOOL)trackMouse:(NXEvent *)theEvent inRect:(const NXRect *)cellFrame ofView:aView
//---------------------------------------------------------------------------------------
/*" Intercepts the handling of mouse events at the lowest level possible
because this Cell class needs acess to the event structure of the mouse down
event.
This method first changes the window's event mask to also reveive
#NX_MOUSEDRAGGED events and then waits for the next event. In case of
an #NX_MOUSEDRAGGED event it places its URI on the drag pasteboard and calls
#dragImage:at:offset:event:pasteboard:source:slideBack message in its control
view. In case of an #NX_MOUSEUP event with #click being 2
(that is, a double-click) it also places the URI on the drag pasteboard and
then invokes the specifed service. "*/
{
Window *window;
int oldMask;
NXEvent theMDEvent;
NXPoint p0={0,0},origin=cellFrame->origin;
NXAtom pbType[]={W3URIPboardType, NXAsciiPboardType, NULL};
Pasteboard *pBoard=[Pasteboard newName:NXDragPboard];
const char *serviceName;
if(uri==NULL)
return NO;
window=[aView window];
theMDEvent=*theEvent;
oldMask=[window addToEventMask:NX_MOUSEDRAGGEDMASK];
theEvent=[NXApp getNextEvent:NX_MOUSEUPMASK|NX_MOUSEDRAGGEDMASK];
[window setEventMask:oldMask];
if(theEvent->type==NX_MOUSEDRAGGED)
{
[pBoard declareTypes:pbType num:2 owner:self];
[pBoard writeType:W3URIPboardType data:uri length:strlen(uri)];
[aView dragImage:[NXImage findImageNamed:[self icon]] at:&origin
offset:&p0 event:&theMDEvent pasteboard:pBoard source:self slideBack:YES];
}
else if(theEvent->type==NX_MOUSEUP && theEvent->data.mouse.click==2)
{
[pBoard declareTypes:pbType num:2 owner:self];
[pBoard writeType:W3URIPboardType data:uri length:strlen(uri)];
serviceName=[NXApp defaultValue:"URLService"];
if(!serviceName)
serviceName="OmniWeb/Open URL";
NXPerformService(serviceName,pBoard);
}
return NO;
}
//---------------------------------------------------------------------------------------
- (NXDragOperation)draggingSourceOperationMaskForLocal:(BOOL)flag;
//---------------------------------------------------------------------------------------
/*" Always returns #NX_DragOperationCopy. "*/
{
return NX_DragOperationCopy;
}
//---------------------------------------------------------------------------------------
- pasteboard:sender provideData:(NXAtom)datatype;
//---------------------------------------------------------------------------------------
/*" Initially only the `WebStep Universal Resource Identifier' is placed on
the pasteboard. If the receiver insists on getting the standard ASCII
representation it is provided lazily through this method. "*/
{
#if DEBUG
fprintf(stderr,"%s: receiver preferes %s\n",[[self class] name],datatype);
#endif
if(datatype!=NXAsciiPboardType || uri==NULL)
return nil;
[sender writeType:datatype data:uri length:strlen(uri)];
return self;
}
//---------------------------------------------------------------------------------------
@end
//---------------------------------------------------------------------------------------
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.