Re: DND for XEmacs 21

Hrvoje Niksic <hniksic(a)srce.hr&gt; writes: What I have done in the last hours is the following: - I removed the extra drag and drop events - I made the OffiX drop catcher in event-Xt.c generate misc-user-events with a function of dragdrop-drop-dispatcher and the dnd-data as object. This runs fine (now with egcs -O3 -mpentium -- without -fno-caller-saves). But to make the thing really work, the function called (dragdrop-drop-dispatch) must have access to the position, button, and modifiers where the drop happened. The question is where to put them to get the easiest transition to the new model (and without breaking existing stuff using misc_user_event). Extending the misc_user_data by the data provided in a button_data is not enough. If I do it this way, I must change the way XEmacs calls misc_user_events from /* this is from event-stream.c */ if (XEVENT (event)->event_type == misc_user_event) { call1 (XEVENT (event)->event.eval.function, XEVENT (event)->event.eval.object); } to if (XEVENT (event)->event_type == misc_user_event) { call2 (XEVENT (event)->event.misc.function, XEVENT (event)->event.misc.object, event); } But I thing this is evil and would certainly break something (perhaps I can create a workaround by setting for example the button value of a non-dragdrop misc_user_event to -1. So I can base the decision how to call the thing on this). Another possible is to add the button, mod and pos info into the object list. dragdrop-drop-dispatch could then create a dummy button-xy event with the actual values (channel must also be stored in object) so the function can use the internal functions event-point (and others) to get the position in the buffer and the action the user wanted. To pinpoint the whole thing again: A drop needs to know where it happened to create the correct reaction (insert the text, change a value in customize, create a new buffer, etc...), perhaps by using properties of an underlying extent (if the drop happened within it). But perhaps there is some other way? Regards, Oliver.