Class: SelectionFetcher (private in XWorkstation

• Inheritance
• Description
• Related information
• Class protocol
  • selections
• Instance protocol
  • accessing
  • event handling
  • selection actions
  • testing

Inheritance:

   Object
   |
   +--XWorkstation::SelectionFetcher

Package:

stx:libview

Category:

Interface-Graphics

Owner:

XWorkstation

Author:

Stefan Vogel (stefan@zwerg)

Description:

This class is responsible for fetching the clipboard.
The X11 clipboard is implemented via asynchonous messages.

For each fetch operation an instance of this class is created.
The asynchronous messages are queued and executed in the
process that requests the clipboard.


[instance variables:]

[class variables:]

Related information:

Class protocol:

 requestSelection: selectionId type: aTargetId onDevice: aDisplay for: aDrawableId

Instance protocol:

 drawableID

 getSelection

convert the data in buffer to a selection

 message: aMessage

got an asynchronous event from the display.
Save and wake up waiters

 propertyChange: aView property: aPropertyId state: stateSymbol time: time

this is a forwarded propertyChange event from XWorkstation

 selectionClear: aView selection: selectionId time: time

sent when another X-client has created a selection.
This is a very X-specific mechanism.

 selectionNotify: aView selection: aSelectionID target: aTargetID property: aPropertyID requestor: requestorID time: time

this is a forwarded selectionNotify event from XWorkstation

 requestSelection: aSelectionId type: aTargetId onDevice: aDisplay for: aDrawableId

request the selection of type targetId.
Wait for next asynchronous message and process it,
until done

 matchesDrawableId: aDrawableId

return true, if this SelectionFetcher fetches for aDrawableId