"
jv:vdb - Visual / VM Debugger
Copyright (C) 2015-now Jan Vrany

This software is licensed under 'Creative Commons Attribution-NonCommercial 4.0 International License'

You may find a full license text in LICENSE.txt or at http://creativecommons.org/licenses/by-nc/4.0/
"
"{ Package: 'jv:vdb' }"

"{ NameSpace: Smalltalk }"

VDBAbstractApplication subclass:#VDBAbstractContentsApplication
	instanceVariableNames:'contentsValid'
	classVariableNames:''
	poolDictionaries:''
	category:'VDB-UI-Abstract'
!

!VDBAbstractContentsApplication class methodsFor:'documentation'!

copyright
"
jv:vdb - Visual / VM Debugger
Copyright (C) 2015-now Jan Vrany

This software is licensed under 'Creative Commons Attribution-NonCommercial 4.0 International License'

You may find a full license text in LICENSE.txt or at http://creativecommons.org/licenses/by-nc/4.0/
"
! !

!VDBAbstractContentsApplication class methodsFor:'queries'!

isAbstract
    "Return if this class is an abstract class.
     True is returned here for myself only; false for subclasses.
     Abstract subclasses must redefine this again."

    ^ self == VDBAbstractContentsApplication.
! !

!VDBAbstractContentsApplication methodsFor:'change & update'!

enqueueDelayedUpdateContents
    contentsValid := false.
    windowVisible ifTrue:[
        self enqueueMessage:#delayedUpdateContentsInternal
    ]

    "Created: / 01-10-2018 / 12:56:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 14-02-2019 / 16:11:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

updateAfterWindowVisibilityChanged
    contentsValid ifFalse:[ 
        self enqueueDelayedUpdateContents  
    ].

    "Created: / 14-02-2019 / 16:17:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!VDBAbstractContentsApplication methodsFor:'change & update-delayed'!

delayedUpdateContents
    self subclassResponsibility

    "Created: / 14-02-2019 / 16:16:24 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

delayedUpdateContentsInternal
    "/ For internal use, do not override!!"
    contentsValid := false.
    windowVisible ifTrue:[ 
        self delayedUpdateContents.
        contentsValid := true.
    ].

    "Created: / 14-02-2019 / 16:09:26 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!VDBAbstractContentsApplication methodsFor:'initialization'!

initialize
    super initialize.
    contentsValid := false.

    "Created: / 14-02-2019 / 16:18:03 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !