"
stx:goodies/smallsense - A productivity plugin for Smalltalk/X IDE
Copyright (C) 2013-2014 Jan Vrany

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
"
"{ Package: 'stx:goodies/smallsense' }"

"{ NameSpace: SmallSense }"

Tools::CodeViewService subclass:#EditService
	instanceVariableNames:'environment support'
	classVariableNames:''
	poolDictionaries:''
	category:'SmallSense-Core-Services'
!

!EditService class methodsFor:'documentation'!

copyright
"
stx:goodies/smallsense - A productivity plugin for Smalltalk/X IDE
Copyright (C) 2013-2014 Jan Vrany

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
"
!

documentation
"
    this is the 'Electric Edit' service.
    It automatically insert code fragments as you type.
"    
! !

!EditService class methodsFor:'initialization'!

initialize
    "
     | map |
     map := Screen current keyboardMap.
     map bindValue:#CodeCompletion to: #'Ctrl '.
     map bindValue:#CodeCompletion to: #'Ctrlspace'.
    "

    Smalltalk addStartBlock:[
	Screen current notNil ifTrue:[
	    | map |
	    map := Screen current keyboardMap.
	    (map keyAtValue:#CodeCompletion) isNil ifTrue:[
		map bindValue:#CodeCompletion to: #'Ctrl '.
		map bindValue:#CodeCompletion to: #'Ctrlspace'.
	    ].
       ]
    ]

    "Created: / 17-09-2013 / 15:23:37 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!EditService class methodsFor:'accessing'!

label
    "Answers a short label - for UI"

    ^'SmallSense - Edit Support'

    "Created: / 27-07-2013 / 22:35:38 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!EditService class methodsFor:'testing'!

isAvailable

    ^false

    "Created: / 28-11-2014 / 15:41:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

isAvailableFor: applicationClass

    "Returns true if given service may be used in
     given application class."

    ^false

    "Created: / 28-11-2014 / 15:41:55 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!EditService methodsFor:'accessing'!

environment
    "Return an system environment for completion."

    ^ environment ? Smalltalk

    "Modified: / 13-05-2014 / 12:02:08 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

environment:aSystemEnvironment
    "Sets an envirronment for completion. Only classes and/or methods in
     the environment are offered for completion"
    environment := aSystemEnvironment.

    "Modified (comment): / 13-05-2014 / 11:55:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

support
    ^ support
! !

!EditService methodsFor:'accessing-views'!

codeView
    ^ codeView
!

gutterView
    ^ gutterView
!

textView
    ^ textView
! !

!EditService methodsFor:'change & update'!

update:something with:aParameter from:changedObject
    "Invoked when an object that I depend upon sends a change notification."

    changedObject == codeView ifTrue:[
	(#(methodHolder classHolder languageHolder) includes: something) ifTrue:[
	    aParameter key removeDependent: self.
	    aParameter value addDependent: self.
	].
    ].

    (changedObject == codeView languageHolder
	or:[changedObject == codeView classHolder
	or:[changedObject == codeView methodHolder]]) ifTrue:[
	self updateSupport.
	^self.
    ].

    super update:something with:aParameter from:changedObject

    "Modified: / 16-09-2013 / 16:36:36 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

updateSupport
    | lang |

    (UserPreferences current smallSenseElectricEditSupportEnabled == true) ifTrue:[
	support language ~~ (lang := codeView language) ifTrue:[
	    self updateSupport: (EditSupport forLanguage: lang).
	].
    ].

    "Created: / 16-09-2013 / 16:31:51 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 13-05-2014 / 14:49:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

updateSupport: anEditSupport
    support := anEditSupport.
    support initializeForService: self.

    "Created: / 13-05-2014 / 14:49:25 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!EditService methodsFor:'event handling'!

keyPress: key x:x y:y in: view

    "Handles an event in given view (a subview of codeView).
     If the method returns true, the event will not be processed
     by the view."

    ^support notNil
	ifTrue:[support keyPress: key x:x y:y in: view]
	ifFalse:[false]

    "Created: / 07-03-2010 / 09:36:44 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 24-07-2013 / 23:28:45 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!EditService methodsFor:'registering'!

registerIn: aCodeView
    (UserPreferences current smallSenseEnabled == true) ifTrue:[
	super registerIn: aCodeView.
	aCodeView languageHolder addDependent: self.
	aCodeView classHolder    addDependent: self.
	aCodeView methodHolder   addDependent: self.
	support := EditSupport forLanguage: aCodeView language.
	support initializeForService: self.
    ] ifFalse:[
	"/ If not enabled, remove itself from set of services,
	"/ see Tools::CodeView2>>registerService:
	"/ Bad API, has to be fixed in CodeView2...
	aCodeView services remove: self ifAbsent:[ ]
    ].

    "Created: / 24-07-2013 / 23:13:30 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 13-06-2014 / 14:15:02 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

unregister
    "Uninstall myself from my codeView"

    codeView languageHolder removeDependent: self.
    codeView classHolder    removeDependent: self.
    codeView methodHolder   removeDependent: self.
    super unregister

    "Created: / 24-07-2013 / 23:14:18 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 13-06-2014 / 14:17:02 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!EditService class methodsFor:'documentation'!

version_CVS

    ^ '$Header$'
!

version_HG

    ^ '$Changeset: <not expanded> $'
! !


EditService initialize!