Hi Sebastian, Our specific problem is that while a screen share session is running with remote control, if the user presses the spacebar or enter key the keyboard input will stop working for the remote-controlling user.
The reason for this appears to be that when space or enter are pressed, a new viewer session is started using the "startViewerSession" method in the screenSharingDialog.lzx file. The debug log data posted in my initial email suggests this. I don't think the problem is on the receiving side, since when both the sender and receiver have a Laszlo Debugger running, error messages appear only on the sender's side when input is being sent. I have searched through the source and have not found a place where this behavior for the space and enter keys is set. In build/openlaszlo/lps/components/base/componentmanager.lzx, there appears to be a dispatchKeyDown method starting on line 62 that specifies some special method hooks for keyup/keydown events on space and enter (keycodes 13 and 32), but commenting out this code and recompiling the Laszlo app did nothing. Do you know how we could disable starting a new viewer session when space or enter are pressed? Thanks for your help. On Tue, Aug 14, 2012 at 4:15 AM, [email protected] < [email protected]> wrote: > Hello Kyle, > > I am not sure if I understood your issues correctly. > It sounds like two issues: > - Space and enter keys are not working for you > - A special action happens in the client when you press those keys > (sounds like an issue with a key-shortcut that uses the same > key-combo) > > Let me give you some details about Remote-Control and keys: > Depending on what operating system you are using the key-codes that we > have to listen in the client are different: > > http://svn.apache.org/viewvc/incubator/openmeetings/trunk/singlewebapp/WebContent/swf10/screensharing/screenSharingDialog.lzx?view=markup > Line: 230 and following. > => This is where the client will listen to keydown events and > calculates based on the operating system that is in use what key was > pressed. > The process is that by default it will pass the key-code number > "as-is" via rtmp-message-object to the Java-WebStart application that > runs on the remote screen. > But for special keys where key-codes are not the same, the key-code is > set to -1 and the raw string is transfered instead. On the receiving > side (the Java WebStart application) this raw string will be simulated > as input if they key-code is -1. Otherwise it will just use the > key-code. > > The processing of the message "receiving side" (the Java WebStart > application) source code is at: > > http://svn.apache.org/viewvc/incubator/openmeetings/trunk/singlewebapp/src/org/openmeetings/screen/webstart/CoreScreenShare.java?view=markup > Line: 414 and following > => Here you can see some shift for some standard-key codes and the > simulation of the string if key code is -1. > On the receiving side there is no different processing of key-codes as > Java should have the same key codes on all platforms from my point of > view. > > And now to your question: As you can see it really depends on what > operating system you are using on the client side. > Potentially also what the OS of the client that runs the Java WebStart > application. > Then you need to run the debug version of the client to lookup > eventually issues with the key code. > And then you might look at the Console output of the Java WebStart > application. > > Based on that it should be rather easy to find out which key codes > might be wrong. > > Sebastian > > > > > 2012/8/13 Kyle Stephenson <[email protected]>: > > Hello, > > > > I've been working on setting up an OpenMeetings system where users will > > often need to remotely enter text on each others' computers. I've > > encountered a problem in that when a user is remotely entering text > > using the Java screen share applet, remote keyboard control will stop > > working when the remote-controlling user presses the space or enter keys. > > > > After doing some Flash debugging I've uncovered what looks like a reason > > for the remote input failures when space or enter are pressed. Below is > > a portion of the debug log during a screen sharing session with remote > > keyboard input. > > > > It appears that when space (code 32) or enter (code 13) are pressed, a > > new OpenMeetings meeting object is initialized, judging by the > > parameters of the initialized object. The question is, then, how to > > prevent this from happening? > > > > The OM documentation doesn't mention the use of space or enter to launch > > a new session. Do you or anyone know what .lzx source file the keycodes > > would be specified in so I can disable them? Thank you. > > > > onkeydown 70 > > downkeys «Array(1)#41| [70]» 1 > > onkeyup 70 > > tObject :: «Object#45| {action: 'onkeyup', k: 70}» true false > > onkeydown 16 > > downkeys «Array(1)#41| [16]» 1 > > onkeyup 16 > > tObject :: «Object#46| {action: 'onkeyup', k: 16}» true false > > onkeydown 16 > > downkeys «Array(1)#41| [16]» 1 > > onkeyup 16 > > tObject :: «Object#47| {action: 'onkeyup', k: 16}» true false > > onkeydown 32 > > downkeys «Array(1)#41| [32]» 1 > > this.initObject «Object#39| {allowRecording: true, …, broadCastID: -2, > > canDraw: false, canGiveAudio: false, canRemote: false, canShare: false, > > chatUserRoomId: null, connectedSince: Sat Aug 4 12:15:43 GMT-0700 2012, > > externalUserId: null, externalUserType: null, firstname: 'Electronic', > > flvRecordingId: null, flvRecordingMetaDataId: null, formatedDate: null, > > interviewPodId: null, isAVClient: false, isBroadcasting: false, > > isChatNotification: false, isMod: false, isRecording: false, > > isScreenClient: true, isSuperModerator: false, …, lastLogin: null, > > lastname: 'Name', mail: null, micMuted: false, official_code: null, > > organization_id: 1, picture_uri: null, publicSID: > > ' > > f81939f3d735f3cd951239715c7c0e70', room_id: 8, roomClientId: null, > > roomEnter: null, roomRecordingName: null, scope: '8', > > screenPublishStarted: false, …, startRecording: false, startStreaming: > > true, streamid: '42', streamPublishName: > > '22a39439eed2b5670cbe6cbb3390d30b', …, user_id: 5, usercolor: null, > > userip: '0.0.0.0', …, userport: 39191, userpos: null, VHeight: 367, > > VWidth: 1265, VX: 614, VY: 270, zombieCheckFlag: false}» > > STOP: play «flash.net::NetStream#48| [object NetStream]» > > onkeyup 32 > > tObject :: «Object#49| {action: 'onkeyup', k: 32}» true false > > onstop this._y.to 0 > > newZoom 89 > > setSliderValue 89 > > onkeydown 32 > > downkeys «Array(1)#41| [32]» 1 > > this.initObject «Object#39| {allowRecording: true, …, broadCastID: -2, > > canDraw: false, canGiveAudio: false, canRemote: false, canShare: false, > > chatUserRoomId: null, connectedSince: Sat Aug 4 12:15:43 GMT-0700 2012, > > externalUserId: null, externalUserType: null, firstname: 'Electronic', > > flvRecordingId: null, flvRecordingMetaDataId: null, formatedDate: null, > > interviewPodId: null, isAVClient: false, isBroadcasting: false, > > isChatNotification: false, isMod: false, isRecording: false, > > isScreenClient: true, isSuperModerator: false, …, lastLogin: null, > > lastname: 'Name', mail: null, micMuted: false, official_code: null, > > organization_id: 1, picture_uri: null, publicSID: > > 'f81939f3d735f3cd951239715c7c0e70', room_id: 8, roomClientId: null, > > roomEnter: null, roomRecordingName: null, scope: '8', > > screenPublishStarted: false, …, startRecording: false, startStreaming: > > true, streamid: '42', streamPublishName: > > '22a39439eed2b5670cbe6cbb3390d30b', …, user_id: 5, usercolor: null, > > userip: '0.0.0.0', …, userport: 39191, userpos: null, VHeight: 367, > > VWidth: 1265, VX: 614, VY: 270, zombieCheckFlag: false}» > > STOP: play «flash.net::NetStream#50| [object NetStream]» > > onkeyup 32 > > tObject :: «Object#51| {action: 'onkeyup', k: 32}» true false > > onstop this._y.to 0 > > newZoom 89 > > setSliderValue 89 > > onkeydown 32 > > downkeys «Array(1)#41| [32]» 1 > > this.initObject «Object#39| {allowRecording: true, …, broadCastID: -2, > > canDraw: false, canGiveAudio: false, canRemote: false, canShare: false, > > chatUserRoomId: null, connectedSince: Sat Aug 4 12:15:43 GMT-0700 2012, > > externalUserId: null, externalUserType: null, firstname: 'Electronic', > > flvRecordingId: null, flvRecordingMetaDataId: null, formatedDate: null, > > interviewPodId: null, isAVClient: false, isBroadcasting: false, > > isChatNotification: false, isMod: false, isRecording: false, > > isScreenClient: true, isSuperModerator: false, …, lastLogin: null, > > lastname: 'Name', mail: null, micMuted: false, official_code: null, > > organization_id: 1, picture_uri: null, publicSID: > > 'f81939f3d735f3cd951239715c7c0e70', room_id: 8, roomClientId: null, > > roomEnter: null, roomRecordingName: null, scope: '8', > > screenPublishStarted: false, …, startRecording: false, startStreaming: > > true, streamid: '42', streamPublishName: > > '22a39439eed2b5670cbe6cbb3390d30b', …, user_id: 5, usercolor: null, > > userip: '0.0.0.0', …, userport: 39191, userpos: null, VHeight: 367, > > VWidth: 1265, VX: 614, VY: 270, zombieCheckFlag: false}» > > STOP: play «flash.net::NetStream#52| [object NetStream]» > > onkeyup 32 > > onkeydown 13 > > downkeys «Array(1)#41| [13]» 1 > > this.initObject «Object#39| {allowRecording: true, …, broadCastID: -2, > > canDraw: false, canGiveAudio: false, canRemote: false, canShare: false, > > chatUserRoomId: null, connectedSince: Sat Aug 4 12:15:43 GMT-0700 2012, > > externalUserId: null, externalUserType: null, firstname: 'Electronic', > > flvRecordingId: null, flvRecordingMetaDataId: null, formatedDate: null, > > interviewPodId: null, isAVClient: false, isBroadcasting: false, > > isChatNotification: false, isMod: false, isRecording: false, > > isScreenClient: true, isSuperModerator: false, …, lastLogin: null, > > lastname: 'Name', mail: null, micMuted: false, official_code: null, > > organization_id: 1, picture_uri: null, publicSID: > > 'f81939f3d735f3cd951239715c7c0e70', room_id: 8, roomClientId: null, > > roomEnter: null, roomRecordingName: null, scope: '8', > > screenPublishStarted: false, …, startRecording: false, startStreaming: > > true, streamid: '42', streamPublishName: > > '22a39439eed2b5670cbe6cbb3390d30b', …, user_id: 5, usercolor: null, > > userip: '0.0.0.0', …, userport: 39191, userpos: null, VHeight: 367, > > VWidth: 1265, VX: 614, VY: 270, zombieCheckFlag: false}» > > STOP: play «flash.net::NetStream#58| [object NetStream]» > > onkeyup 13 > > > > > > -- > > > > *Best Regards,* > > * > > * > > *Kyle Stephenson* > > > > -- > Sebastian Wagner > https://twitter.com/#!/dead_lock > 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