"

 COPYRIGHT (c) 1996-2011 by Claus Gittinger

 New code and modifications done at SWING Research Group [1]:

 COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko

                            SWING Research Group, Czech Technical University in Prague

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

 [1] Code written at SWING Research Group contains a signature

     of one of the above copright owners. For exact set of such code,

     see the differences between this version and version stx:libjava

     as of 1.9.2010

"

"{ Package: 'stx:libjava' }"

JavaView subclass:#JavaEmbeddedFrameView

	instanceVariableNames:'codeURL codeBaseURL documentURL archiveURL parameterDictionary

		embeddedAppletFrame applet appletID appletThread

		infoDisplayReceiver autoSetupApplet autoStartApplet

		autoDestroyApplet isNS40 attributeHashTable appletIsPreloaded'

	classVariableNames:'NextSequentialAppletID'

	poolDictionaries:''

	category:'Languages-Java-Views-Support'

!

!JavaEmbeddedFrameView class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 1996-2011 by Claus Gittinger

 New code and modifications done at SWING Research Group [1]:

 COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko

                            SWING Research Group, Czech Technical University in Prague

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

 [1] Code written at SWING Research Group contains a signature

     of one of the above copright owners. For exact set of such code,

     see the differences between this version and version stx:libjava

     as of 1.9.2010

"

! !

!JavaEmbeddedFrameView class methodsFor:'support'!

newAppletContext

    | jMozillaAppletContextClass |

    "/ this makes it a modzilla applet context ...

    jMozillaAppletContextClass := JavaVM 

                classForName: 'netscape.applet.MozillaAppletContext'.

    jMozillaAppletContextClass isNil ifTrue: [

        self warn: 'no netscape.applet.MozillaAppletContext class'.

        ^ nil

    ].

    jMozillaAppletContextClass instVarNamed: 'debug' put: 1.

    ^ jMozillaAppletContextClass new.

    "Created: / 20.10.1998 / 15:40:08 / cg"

    "Modified: / 20.10.1998 / 15:43:47 / cg"

! !

!JavaEmbeddedFrameView methodsFor:'accessing'!

applet

    ^ applet

    "Created: / 26.1.1999 / 13:51:10 / cg"

!

appletID

    "return the value of the instance variable 'appletID' (automatically generated)"

    ^ appletID

    "Created: / 28.1.1998 / 21:08:54 / cg"

!

appletID:something

    "set the value of the instance variable 'appletID' (automatically generated)"

    appletID := something.

    "Created: / 28.1.1998 / 21:08:54 / cg"

!

appletIsPreloaded:aBoolean

    appletIsPreloaded := aBoolean.

!

appletThread

    ^ appletThread

    "Created: / 28.1.1998 / 21:39:42 / cg"

!

archiveURL:anArchiveURLString

    archiveURL := anArchiveURLString

    "Created: / 28.1.1998 / 21:00:38 / cg"

!

codeBaseURL:aCodeBaseURLString

    codeBaseURL := aCodeBaseURLString

    "Created: / 28.1.1998 / 20:59:34 / cg"

!

codeURL:aCodeURLString

    codeURL := aCodeURLString

    "Created: / 28.1.1998 / 21:10:11 / cg"

!

documentURL:aDocumentURLString

    documentURL := aDocumentURLString

    "Created: / 28.1.1998 / 21:00:03 / cg"

    "Modified: / 28.1.1998 / 21:00:28 / cg"

!

embeddedAppletFrame

    ^ embeddedAppletFrame

    "Created: / 28.1.1998 / 21:39:35 / cg"

!

infoDisplayReceiver

    "return the value of the instance variable 'infoDisplayReceiver' (automatically generated)"

    ^ infoDisplayReceiver

    "Created: / 28.1.1998 / 21:43:54 / cg"

!

infoDisplayReceiver:something

    "set the value of the instance variable 'infoDisplayReceiver' (automatically generated)"

    infoDisplayReceiver := something.

    "Created: / 28.1.1998 / 21:43:54 / cg"

!

parameterAt:key put:valueString

    parameterDictionary isNil ifTrue:[

        parameterDictionary := IdentityDictionary new.

    ].

    parameterDictionary at:key put:valueString.

    attributeHashTable 

        perform:#'put(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;'

        with:(Java as_String:key)

        with:(Java as_String:valueString)

    "Created: / 26.1.1999 / 13:46:01 / cg"

    "Modified: / 28.1.1999 / 17:59:36 / cg"

!

parameterDictionary:aParameterDictionary

    parameterDictionary := aParameterDictionary

    "Created: / 28.1.1998 / 21:01:20 / cg"

! !

!JavaEmbeddedFrameView methodsFor:'applet control'!

appletDESTROY

    | ev |

    isNS40 ifTrue: [

        "/ ev = netscape.applet.AppletEvent(APPLET_DESTROY);

        ev := (JavaVM classForName: 'netscape.applet.AppletEvent') 

                    newWith_int: (embeddedAppletFrame class instVarNamed: 'APPLET_DESTROY').

        embeddedAppletFrame perform: #'sendEvent(Lnetscape/applet/NEvent;)V'

            with: ev.

        ^ self

    ].

    embeddedAppletFrame perform: #'sendEvent(I)V'

        with: (embeddedAppletFrame class instVarNamed: 'APPLET_DESTROY').

    "Created: / 28.1.1998 / 21:41:45 / cg"

    "Modified: / 13.11.1998 / 14:19:49 / cg"

!

appletDISPOSE

    | ev |

    isNS40 ifTrue: [

        "/ ev = netscape.applet.AppletEvent(APPLET_DISPOSE);

        ev := (JavaVM classForName: 'netscape.applet.AppletEvent') 

                    newWith_int: (embeddedAppletFrame class instVarNamed: 'APPLET_DISPOSE').

        embeddedAppletFrame perform: #'sendEvent(Lnetscape/applet/NEvent;)V'

            with: ev.

        ^ self

    ].

    embeddedAppletFrame perform: #'sendEvent(I)V'

        with: (embeddedAppletFrame class instVarNamed: 'APPLET_DISPOSE').

    "Created: / 28.1.1998 / 21:41:57 / cg"

    "Modified: / 13.11.1998 / 14:19:43 / cg"

!

appletINIT

    | ev |

    isNS40 ifTrue: [

        "/ ev = netscape.applet.AppletEvent(APPLET_INIT);

        ev := (JavaVM classForName: 'netscape.applet.AppletEvent') 

                    newWith_int: (embeddedAppletFrame class instVarNamed: 'APPLET_INIT').

        embeddedAppletFrame perform: #'sendEvent(Lnetscape/applet/NEvent;)V'

            with: ev.

        ^ self

    ].

    embeddedAppletFrame perform: #'sendEvent(I)V'

        with: (embeddedAppletFrame class instVarNamed: 'APPLET_INIT').

    "Created: / 28.1.1998 / 21:17:51 / cg"

    "Modified: / 13.11.1998 / 14:19:35 / cg"

!

appletLOAD

    | ev |

    isNS40 ifTrue: [

        "/ ev = netscape.applet.AppletEvent(APPLET_LOAD);

        ev := (JavaVM classForName: 'netscape.applet.AppletEvent') 

                    newWith_int: (embeddedAppletFrame class instVarNamed: 'APPLET_LOAD').

        embeddedAppletFrame perform: #'sendEvent(Lnetscape/applet/NEvent;)V'

            with: ev.

        ^ self

    ].

    embeddedAppletFrame perform: #'sendEvent(I)V'

        with: (embeddedAppletFrame class instVarNamed: 'APPLET_LOAD').

    "Created: / 28.1.1998 / 21:17:37 / cg"

    "Modified: / 13.11.1998 / 14:19:31 / cg"

!

appletSTART

    | ev |

    isNS40 ifTrue: [

        "/ ev = netscape.applet.AppletEvent(APPLET_START);

        ev := (JavaVM classForName: 'netscape.applet.AppletEvent') 

                    newWith_int: (embeddedAppletFrame class instVarNamed: 'APPLET_START').

        embeddedAppletFrame perform: #'sendEvent(Lnetscape/applet/NEvent;)V'

            with: ev.

        ^ self

    ].

    embeddedAppletFrame perform: #'sendEvent(I)V'

        with: (embeddedAppletFrame class instVarNamed: 'APPLET_START').

    "Created: / 28.1.1998 / 21:18:01 / cg"

    "Modified: / 13.11.1998 / 14:19:21 / cg"

!

appletSTOP

    | ev |

    isNS40 ifTrue: [

        "/ ev = netscape.applet.AppletEvent(APPLET_STOP);

        ev := (JavaVM classForName: 'netscape.applet.AppletEvent') 

                    newWith_int: (embeddedAppletFrame class instVarNamed: 'APPLET_STOP').

        embeddedAppletFrame perform: #'sendEvent(Lnetscape/applet/NEvent;)V'

            with: ev.

        ^ self

    ].

    embeddedAppletFrame perform: #'sendEvent(I)V'

        with: (embeddedAppletFrame class instVarNamed: 'APPLET_STOP').

    "Created: / 28.1.1998 / 21:41:33 / cg"

    "Modified: / 13.11.1998 / 14:19:14 / cg"

!

autoDestroyApplet:aBoolean

    "set/clear the autoDestroy flag.

     If set, the applet will be shutDown whenever the I get destroyed.

     if clear, the applet is not automatically shutDown and must be

     terminated by someone else.

     The default is false."

    autoDestroyApplet := aBoolean.

    "Created: / 29.1.1998 / 15:18:50 / cg"

    "Modified: / 29.1.1998 / 15:21:01 / cg"

!

autoSetupApplet:aBoolean

    "set/clear the autoSetup flag.

     If set, the appletFrame will be setup whenever the I get realized

     for the first time.

     If clear, the frame is not automatically setup and must be

     setup by someone else.

     The default is true."

    autoSetupApplet := aBoolean.

    "Created: / 29.1.1998 / 15:18:41 / cg"

    "Modified: / 29.1.1998 / 20:45:37 / cg"

!

autoStartApplet:aBoolean

    "set/clear the autoStart flag.

     If set, the applet will be loaded & started whenever the I get realized

     for the first time.

     If clear, the applet is not automatically started and must be

     started by someone else.

     The default is false."

    autoStartApplet := aBoolean.

    "Created: / 29.1.1998 / 15:18:41 / cg"

    "Modified: / 29.1.1998 / 15:20:54 / cg"

!

startApplet

    "/ ensure its initialized when the first event comes;

    "/ therefore, raise my prio above the event dispatchers prio for a while.

    Processor activeProcess withPriority:(Processor activePriority + 1)

    do:[

        self startAppletThread.

        appletIsPreloaded ifFalse:[self appletLOAD].

        self appletINIT.

    ].

    self appletSTART

    "Modified: / 28.1.1998 / 21:30:24 / cg"

!

startAppletThread

    |appletName|

    appletThread := JavaProcess 

            for:[

                    "/ passnotifications to the documentFrame ...

                    Object informationSignal handle:[:ex |

                        JavaVM javaConsoleStream showCR:ex errorString.

                        ex proceed.

                    ] do:[

                        Object activityNotificationSignal handle:[:ex |

                            infoDisplayReceiver notNil ifTrue:[

                                infoDisplayReceiver infoDisplay:ex errorString.

                            ] ifFalse:[

                                Transcript showCR:ex errorString

                            ].

                            ex proceed.

                        ] do:[

                            [

                                "/ Transcript showCR:(Timestamp now printString , ' start embeddedAppletFrame').

                                embeddedAppletFrame perform:#'run()V'.

                            ] ensure:[

                                appletThread notNil ifTrue:[

                                    appletThread terminateAllSubprocesses.

                                ].

                                Logger log:'JAVA applet startup finished' severity: #info facility: 'JVM'

                            ]

                        ]

                    ]

                ]

            priority:(Processor activePriority "- 1").

    appletName := codeURL asFilename withoutSuffix baseName.

    appletThread name:('JAVA-' , appletName , '-applet' , ' [startup]').

    appletThread restartable:true.

    appletThread resume.

    ^ appletThread.

    "Created: / 28-01-1998 / 21:30:32 / cg"

    "Modified: / 24-12-1999 / 02:58:50 / cg"

    "Modified: / 14-09-2011 / 21:40:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

stopApplet

    |n n2|

    (appletThread notNil 

    and:[appletThread isDead not])ifTrue:[

"/        'EmbeddedAppletFrame [info]: send APPLET_STOP ...' infoPrintCR.

        self appletSTOP.

"/        'EmbeddedAppletFrame [info]: send APPLET_DESTROY ...' infoPrintCR.

        self appletDESTROY.

"/        'EmbeddedAppletFrame [info]: send APPLET_DISPOSE ...' infoPrintCR.

        self appletDISPOSE.

        "/

        "/ give it a chance to stop ...

        "/

        Processor yield.

        n2 := 0.

        [appletThread isDead] whileFalse:[

            "/ give it a second to shut down ...

            n := 0.

            [n < 10 and:[appletThread isDead not]] whileTrue:[

                Delay waitForSeconds:0.1.

                n := n + 1.

            ].

            appletThread isDead ifFalse:[

                "/ after 3 seconds, kill it.

                Logger log:'EmbeddedAppletFrame: JAVA thread did not stop - soft terminate ...'  severity: #info facility: 'JVM'.

appletThread == JavaVM javaScreenUpdaterThread ifTrue:[self halt].

appletThread == JavaVM javaEventQueueThread ifTrue:[self halt].

                appletThread terminate.

                n2 := n2 + 1.

                n2 > 3 ifTrue:[

                    Logger log:'EmbeddedAppletFrame: JAVA thread did not stop - shooting down ...' severity: #info facility: 'JVM'.

                    appletThread terminateNoSignal

                ]

            ].

        ].

    ].

    appletThread := nil

    "Modified: / 24-12-1999 / 02:35:25 / cg"

    "Modified: / 14-09-2011 / 21:42:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!JavaEmbeddedFrameView methodsFor:'initialize / release'!

destroy

    autoDestroyApplet == true ifTrue:[

        self stopApplet

    ].

    super destroy.

    "Created: / 29.1.1998 / 15:21:45 / cg"

    "Modified: / 29.1.1998 / 15:28:26 / cg"

!

initialize           

    appletIsPreloaded := false.

    super initialize.

    viewBackground := Color black.

    "Modified: / 28.1.1999 / 17:44:11 / cg"

!

realize

    autoSetupApplet ~~ false ifTrue:[

        self setupAppletFrameIn:nil initializeJava:true

    ].

    autoStartApplet == true ifTrue:[

        embeddedAppletFrame notNil ifTrue:[

            self startApplet

        ]

    ].

    super realize.

    "Created: / 29.1.1998 / 15:21:30 / cg"

    "Modified: / 20.10.1998 / 15:46:32 / cg"

! !

!JavaEmbeddedFrameView methodsFor:'private'!

setupAppletFrameIn:anAppletContextOrNil

     ^ self setupAppletFrameIn:anAppletContextOrNil initializeJava:true.

!

setupAppletFrameIn: anAppletContextOrNil initializeJava: initializeJava 

    | appletContext  jEmbeddedAppletFrameClass  jDerivedAppletFrameClass  toolkit  peer  attribs  id  jCodeBaseURL  jDocumentURL  jArchiveURL  u  fn |

    embeddedAppletFrame notNil ifTrue: [

        "/ already setup

        ^ self

    ].

    codeBaseURL isNil ifTrue: [ ^ self ].

    initializeJava ifTrue: [ Java startupJavaSystem. ] ifFalse: [

        JavaVM initializeVMIfNoEventThreadRunning

    ].

    "/ if its a relative file-URL, make it relative under

    "/ java...

    u := URL fromString: codeBaseURL.

    u method = 'file' ifTrue: [

        fn := Smalltalk getSystemFileName: u file.

        fn isNil ifTrue: [

            fn := Smalltalk getPackageFileName: ('stx/libjava/' , u file).

        ]

    ].

    fn notNil ifTrue: [ fn := 'file:' , fn asFilename pathName ] ifFalse: [

        fn := codeBaseURL

    ].

    jCodeBaseURL := Java as_URL: fn.

    documentURL notNil ifTrue: [ jDocumentURL := Java as_URL: documentURL. ] ifFalse: [

        jDocumentURL := Java as_URL: fn

    ].

    archiveURL notNil ifTrue: [ jArchiveURL := Java as_URL: archiveURL. ].

    id := appletID.

    id isNil ifTrue: [

        NextSequentialAppletID isNil ifTrue: [ NextSequentialAppletID := 1. ].

        id := NextSequentialAppletID.

        NextSequentialAppletID := NextSequentialAppletID + 1

    ].