"

 COPYRIGHT (c) 1996-2011 by Claus Gittinger

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

                            SWING Research Group, Czech Technical University in Prague

 Parts of the code written by Claus Gittinger are under following

 license:

 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.

 Parts of the code written at SWING Reasearch Group [1] are MIT licensed:

 Permission is hereby granted, free of charge, to any person

 obtaining a copy of this software and associated documentation

 files (the 'Software'), to deal in the Software without

 restriction, including without limitation the rights to use,

 copy, modify, merge, publish, distribute, sublicense, and/or sell

 copies of the Software, and to permit persons to whom the

 Software is furnished to do so, subject to the following

 conditions:

 The above copyright notice and this permission notice shall be

 included in all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,

 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 OTHER DEALINGS IN THE SOFTWARE.

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

     of one of the above copright owners.

"

"{ 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

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

                            SWING Research Group, Czech Technical University in Prague

 Parts of the code written by Claus Gittinger are under following

 license:

 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.

 Parts of the code written at SWING Reasearch Group [1] are MIT licensed:

 Permission is hereby granted, free of charge, to any person

 obtaining a copy of this software and associated documentation

 files (the 'Software'), to deal in the Software without

 restriction, including without limitation the rights to use,

 copy, modify, merge, publish, distribute, sublicense, and/or sell

 copies of the Software, and to permit persons to whom the

 Software is furnished to do so, subject to the following

 conditions:

 The above copyright notice and this permission notice shall be

 included in all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,

 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 OTHER DEALINGS IN THE SOFTWARE.

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

     of one of the above copright owners.

"

!

documentation

"

    a wrapper view, which allows for Java Applets to be embedded

    in a smalltalk view.

    This requires a netscape to be installed on the system.

    [Author:]

        Claus Gittinger

"

! !

!JavaEmbeddedFrameView class methodsFor:'support'!

newAppletContext

    |jMozillaAppletContextClass|

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

    jMozillaAppletContextClass := Java 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 := (Java 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 := (Java 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 := (Java 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 := (Java 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 := (Java 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 := (Java 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.

                                ].

                                Transcript showCR:'JAVA applet startup finished'.

                            ]

                        ]

                    ]

                ]

            priority:(Processor activePriority "- 1").

    appletName := codeURL asFilename withoutSuffix baseName.

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

    appletThread restartable:true.

    appletThread resume.

    ^ appletThread.

    "Created: / 28.1.1998 / 21:30:32 / cg"

    "Modified: / 24.12.1999 / 02:58:50 / cg"

!

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.

                Transcript showCR:'EmbeddedAppletFrame [info]: JAVA thread did not stop - soft terminate ...'.

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

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

                appletThread terminate.

                n2 := n2 + 1.

                n2 > 3 ifTrue:[