"{ Package: 'jv:vdb' }"

VDBAbstractApplication subclass:#VDBDebuggerConsoleApplication

	instanceVariableNames:'consoleView consoleInput consoleOutput consoleOutputLock

		consoleProcess consolePromptPrinted outstandingCommand

		outstandingCommandToken outstandingCommandBlocker

		ignoreNextLogStreamEvent'

	classVariableNames:''

	poolDictionaries:''

	category:'VDB-UI-Console'

!

!VDBDebuggerConsoleApplication class methodsFor:'interface specs'!

windowSpec

    "This resource specification was automatically generated

     by the UIPainter of ST/X."

    "Do not manually edit this!! If it is corrupted,

     the UIPainter may not be able to read the specification."

    "

     UIPainter new openOnClass:VDBConsoleApplication andSelector:#windowSpec

     VDBConsoleApplication new openInterface:#windowSpec

     VDBConsoleApplication open

    "

    <resource: #canvas>

    ^ 

    #(FullSpec

       name: windowSpec

       window: 

      (WindowSpec

         label: 'Debugger Console'

         name: 'Debugger Console'

         min: (Point 10 10)

         bounds: (Rectangle 0 0 782 332)

       )

       component: 

      (SpecCollection

         collection: (

          (ArbitraryComponentSpec

             name: 'Console'

             layout: (LayoutFrame 0 0 0 0 0 1 0 1)

             hasBorder: false

             component: consoleView

           )

          )

       )

     )

    "Modified: / 09-06-2014 / 09:57:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!VDBDebuggerConsoleApplication methodsFor:'aspects'!

consoleView

    consoleView isNil ifTrue:[ 

        consoleView := VDBDebuggerConsoleView new.

        consoleView localEcho:true.

        consoleView inputTranslateCRToNL:true.

        consoleView lineEditMode: true.    

        consoleView inStream: consoleInput.

        consoleView outStream: consoleOutput.

        consoleView startReaderProcessWhenVisible.

    ].

    ^ consoleView

    "Created: / 09-06-2014 / 10:11:01 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified (format): / 10-06-2014 / 17:40:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!VDBDebuggerConsoleApplication methodsFor:'event handling'!

onCommandEvent: event

    event command == outstandingCommand ifTrue:[ 

        outstandingCommandToken := event token.

        ignoreNextLogStreamEvent := true.

    ].

    "Created: / 06-06-2014 / 22:43:45 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 11-06-2014 / 12:35:24 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

onCommandResultEvent: event

    outstandingCommandToken notNil ifTrue:[ 

        event token == outstandingCommandToken ifTrue:[ 

            outstandingCommand := outstandingCommandToken := nil.

            outstandingCommandBlocker signalForAll.

        ].

    ].

    "Created: / 06-06-2014 / 22:44:03 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 11-06-2014 / 11:49:33 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

onEventSetProcessingFinished: event

    self showPrompt.

    "Created: / 18-09-2014 / 23:11:41 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

onLogOutputEvent: event

    ignoreNextLogStreamEvent ifTrue:[ 

        ignoreNextLogStreamEvent := false.

    ] ifFalse:[

        self onStreamOutputEvent: event  

    ]

    "Created: / 11-06-2014 / 12:37:02 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

onStreamOutputEvent: event

    consolePromptPrinted ifTrue:[ self showCR:'' ].

    consolePromptPrinted := false.

    event value asStringCollection do:[:line |  

        line notEmptyOrNil ifTrue:[ 

            self showCR: line.  

        ].

    ].

    "Created: / 11-06-2014 / 12:00:42 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 18-09-2014 / 23:18:15 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!VDBDebuggerConsoleApplication methodsFor:'hooks'!

commonPostOpen

    consoleProcess isNil ifTrue:[

        consoleProcess := 

            [

                [

                    | cmd |

                    self showPrompt.

                    cmd := consoleInput nextLine asString.

                    consolePromptPrinted := false.

                    self showCR: cmd.

                    debugger send: (outstandingCommand := GDBCLICommand new value: cmd) wait: false. 

                    outstandingCommandBlocker wait.

                ] loop. 

            ] newProcess.

        consoleProcess name: 'VDB Debugger Console REPL loop'.

        consoleProcess resume.

    ].

    "Created: / 10-06-2014 / 01:25:34 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 18-09-2014 / 23:20:31 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!VDBDebuggerConsoleApplication methodsFor:'initialization & release'!

initialize

    super initialize.

    consoleInput := GDBInternalPipeStream new.

    consoleOutput := GDBInternalPipeStream new.

    consoleOutputLock := RecursionLock new.

    consolePromptPrinted := false.

    outstandingCommandBlocker := Semaphore new.

    "Created: / 10-06-2014 / 01:23:43 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 18-09-2014 / 23:14:43 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

release

    super release.

    consoleProcess terminate.

    "Created: / 10-06-2014 / 01:34:23 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

subscribe   

    "Register for debugger events. To be overrided by subclasses"

    debugger announcer 

        when: GDBCommandEvent           send: #onCommandEvent:          to: self;

        when: GDBCommandResultEvent     send: #onCommandResultEvent:    to: self;

        when: GDBConsoleOutputEvent      send: #onStreamOutputEvent:     to: self;

        when: GDBTargetOutputEvent       send: #onStreamOutputEvent:     to: self;

        when: GDBLogOutputEvent          send: #onLogOutputEvent:        to: self;

        when: GDBEventSetProcessingFinished send: #onEventSetProcessingFinished: to: self.

    "Created: / 06-06-2014 / 21:26:48 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 18-09-2014 / 23:11:26 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!VDBDebuggerConsoleApplication methodsFor:'private - writing'!

show: aString

    consoleOutputLock critical:[ 

        consoleOutput nextPutAll: aString.

    ].

    "Created: / 11-06-2014 / 08:02:20 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 11-06-2014 / 11:53:06 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

showCR: aString

    consoleOutputLock critical:[ 

        consoleOutput nextPutAll: aString.

        consoleOutput nextPut: Character nl.

        consoleOutput nextPut: Character return.

    ].

    "Created: / 11-06-2014 / 08:02:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 11-06-2014 / 11:56:39 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

showPrompt

    consolePromptPrinted ifFalse:[

        self show: '(gdb) '.

        consolePromptPrinted := true.

    ].

    "Created: / 18-09-2014 / 23:18:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!VDBDebuggerConsoleApplication class methodsFor:'documentation'!

version_HG

    ^ '$Changeset: <not expanded> $'

! !