Re: [api-dev] Programming OOo as a Groupware App
Jürgen Schmidt wrote: Hi, see my comments inline Bradley Bolen wrote: Hello. I asked the following on dev@udk.openoffice.org about programming OOo as a groupware app. There is a reply that I received that I pasted below as well. The responder (btw thanks Stephan Bergmann) suggested asking on this mailing list. Please excuse me if I am sending this to the wrong list. This seemed to be the most appropriate. I am wanting to modify OpenOffice to act similar to Microsoft's Netmeeting. Specifically, I would like to modify it so that there would be a client and a server. When OO starts up it would have a dialog asking for an Impress file to serve which would also be opened as normal. The client OO would start up with a dialog that would ask for the IP address of a server. The client would then get the file and open it up. And finally, the user of the server would be able to click through the Impress document and the change of slides would also occur on the client. My basic question boils down to, is this possible using UNO or will I need to change the base code? yes, in general i would say it should be possible when you only allow read only access to the document. Everything else needs probably more changes in several places. A further important point is that server and client have the same access rights to the document. There may be exists another solution, where it's not required to share folders over the directory or install a complex infrastructure like ftp/http server. But you have to implement some helper may be ... You can use the api to make a copy of the open document (opened on the server readonly or readwrite). You should connect your client to the remote server office using UNO. Then try to locate the document you need and call XStorable.storeToURL() there. Use private:stream as URL and a parameter OutputStream from type XOutputStream. Doing so you should be able to retrieve a copy of the open document from the server and save it on your local machine. Afterwards you can use the stream implementation too, to open the document on your local machine. Of course the same stream implementation must provide an XInputStream interface too. The interface method XComponentLoader.loadComponentFromURL() of the Desktop instance is your friend then. Specifically, is it possible to instantiate some object when OOo starts so that my dialog would pop a job add-on is exactly what you need here up first and then I could return control to OOo is the user decided not to use the server or start up the server otherwise? From what I understand from the SDK, UNO provides the ability to get the remote document fairly easily. I can then intercept any keystrokes and mouse-clicks on the client so to prevent the client user from moving around during the presentation. I can use urp to get messages from the server about mouse-clicks so that the client will change slides when the server does. Everything you can control via API locally can be controlled remotely as well. I expect that you can attach a listener for this kind of changes but i am not 100% sure at the moment. But the problem is that you must implement every set of functionality explicitly. There is no generic way as e.g. intercepting mouse events and transport it to the client. The reason for that: not every action which is done by the user on the server can be intercepted at one central place. And further not all functions can be reached via API. Are these valid ideas? Am I completely off? I have spent the past 3 or 4 weeks reading through the SDK trying to grasp all of the concepts. However, I would like to try to avoid any unneccessary work by going down a path that is completely wrong. From what I understand from the SDK, I can do most of the above using UNO but the opening dialog is what I am not sure about. I have looked at OOoBasic, but I really do not understand what is going on there yet. If it is possible to program this dialog, is it possible to do this with C++? Java is not my forte but seems to be what most of the documents in the SDK use and it may be better if I go that route. C++ can be used in the same way as Java. Java has the advantage that it will run on all supported platforms where as your C++ solution needs to be rebuild for each platform with the appropriate compiler. For the dialog you can use the com.sun.star.awt toolkit which is of course not the easiest task (it lacks of functionality, completeness, ...). But it is also possible to use a Basic dialog and combine this Basic dialog + some Basic macros with your C++ or Java UNO component. You can trigger your own UNO component easily from Basic. Or you use Java for the dialog and implement everything in Java with the disadvantage of a different look and fell because your Java dialog would look a little bit different as the
[api-dev] Runtime problems when using IntrospectionReflection via Java ...
Hi there, since a few hours, "all of a sudden" it has not been possible anymore to successfully use [com.sun.star.lang.XMultiComponentFactory] (supplying a context) or [com.sun.star.lang.XMultiServiceFactory] to instantiate "com.sun.star.beans.Introspection" and/or "com.sun.star.reflection.CoreReflection". This worked and I was able to use XIntrospection and XIdlReflection to analyze UNO objects at runtime. Then, ever since I tried to "play" around with an empty array object (result of "XidlReflection.getFields()") errors occurred and "all of a sudden" I have not been able to instantiate the above two classes. Using a XMultiComponentFactory to create an instance yields the following error message: "method invocation failed: java.lang.reflect.InvocationTargetException target exception: com.sun.star.uno.Exception: Query for service factory for com.sun.star.loader.SharedLibrary failed." Using a XMultiServiceFactory to create an instance yields merely null. --- If you have *any* hints, ideas what can cause such a behavriour, or even more importantly, how once could solve that, I would highly appreciate it. Here is additional information: Operating system: WindowsXP, SP2, using OOo 1.1.4, English *and* OOo 1.9.m113. The test programs use native Java reflection to analyze and invoke Java UNO classes/objects. This part seems to (still) work flawlessly. Now, for making it even easier for ooRexx (http://www.ooRexx.org) users to use UNO, I would like to alleviate the need to explicitly request interface objects and have that part figure out by the ooRexx support. For that reason it is important to be able to use the UNO-reflection/introspection part via Java. This is what I did afterwards: De-installed OOo 1.9.m113, rebooted: program started to work again on 1.1.4, then I re-installed OOo 1.9.m113, rebooted, program neither works with 1.1.4 (setting up the classpath to use 1.1.4 jars) nor with 1.1.9 (setting up the classpath to use the 1.1.9 jars), then I de-installed OOo 1.9.m113, "repaired 1.1.4", rebooted, now the test program does not run on 1.1.4 either! The erroneous behaviour is in all circumstances as mentioned above. If it makes a difference: OOo uses the JRE version 1.4.1_02, whereas my test programs use Java 1.4.1_06 (have a setup which allows me to use arbitrarily any major Java version, i.e. 1.1, 1.2, 1.3, 1.4, 1.5). --- So, again, would someone have any ideas, clues which could help me out? TIA, ---rony
Re: [api-dev] Java and com.sun.star.beans.XIntrospection.inspect() ?
Hi,
w.r.t. my problem description with the subject "Runtime problems when
using IntrospectionReflection via Java" I also get a runtime error
with your program.
F:\work\tmp\ooo\testjava Introspect
Exception in thread "main" java.lang.NullPointerException
at Introspect.main(Introspect.java:28)
Line # 28 is highlighted as red and bold in your original code below:
The following Java program works just fine for me:
import com.sun.star.beans.PropertyValue;
import com.sun.star.beans.XIntrospection;
import com.sun.star.beans.XIntrospectionAccess;
import com.sun.star.beans.XPropertySet;
import com.sun.star.bridge.UnoUrlResolver;
import com.sun.star.comp.helper.Bootstrap;
import com.sun.star.frame.FrameSearchFlag;
import com.sun.star.frame.XComponentLoader;
import com.sun.star.lang.XMultiComponentFactory;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.uno.XComponentContext;
public final class Introspect {
public static void main(String[] arguments) throws Exception {
XMultiComponentFactory factory = (XMultiComponentFactory)
UnoRuntime.queryInterface(
XMultiComponentFactory.class,
(UnoUrlResolver.create(
Bootstrap.createInitialComponentContext(null)).
resolve(
"uno:socket,host=127.0.0.1,port=12345;urp;"
+ "StarOffice.ServiceManager")));
XComponentContext context = (XComponentContext)
UnoRuntime.queryInterface(
XComponentContext.class,
(((XPropertySet) UnoRuntime.queryInterface(
XPropertySet.class, factory)).
getPropertyValue("DefaultContext")));
XIntrospectionAccess access =
((XIntrospection) UnoRuntime.queryInterface(
XIntrospection.class,
factory.createInstanceWithContext(
"com.sun.star.beans.Introspection", context))).
inspect(
(((XComponentLoader) UnoRuntime.queryInterface(
XComponentLoader.class,
factory.createInstanceWithContext(
"com.sun.star.frame.Desktop", context))).
loadComponentFromURL(
"private:factory/scalc", "_blank",
FrameSearchFlag.CREATE, new PropertyValue[0])));
System.exit(0);
}
private Introspect() {}
}
So it is affected as well (does not work anymore).
In the meantime I have de-installed all OpenOffices (1.1.4, 1.9),
deleted all remainders of these installations in the file-system, tried
to find traces in the Windows registry and deleted them.
Then - after reboots - I re-installed OOo 1.9 only, but to no avail.
Are there any registry-entries which might affect this behaviour that
have keys other than "OpenOffice" or "soffice" ? Or could it be, that
some cache is being used that contains erroneous data?
Regards,
---rony
[api-dev] How to use th PathSettings service
Hi all, I'm trying to set up a macro to change the default _MyDocuments_ dir. Found a good example in Andrew Pitonyak macro.sxc (sublisting 5.76 by Paolo Mantovani) but cannot fully understand what happens: I open a .sxc file in ~/OO_files/dir1 and save in it a macro which simply calls the two functions found in Andrew's sublisting 5.76 after defining sNewDir=file:///~/OO_files/dir2. After running the macro I can see that _MyDocuments_ dir (as seen with Tools - Options - OO.org/Paths) correctly shows dir2 as _MyDocuments_ directory. However, if I do: File/Open, the old dir1 is shown in the selection box: I would expect this to be now positioned on 'dir2' (as I think to have read in the relative Help). Could somebody explain why? Thanks for your attention. Ennio. -- [Perche' usare Win$ozz (dico io) se ...anche uno sciocco sa farlo. \\?// Fa' qualche cosa di cui non sei capace! (diceva Henry Miller) ](°|°) [Why use Win$ozz (I say) if ... even a fool can do that. )=( Do something you aren't good at! (as Henry Miller used to say) ] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [api-dev] Java and com.sun.star.beans.XIntrospection.inspect() ?
Christian Junker wrote: Just a remark: Why do you delete registry keys manually (messy messy thing to do!)? I recommend something like Registry Mechanic or any other registry-cleaner, that works. Well, I expected originally, that the de-install would take care of all registry entries the install created. So I was a little bit surprised that some entries "survived" the OOo de-installation while searching for leftovers in the registry and deleted those that I knew didn't cause any side-effects. Will look into registry cleaners. But there must be a reason why the introspectionreflection Java classes get "spoiled" such that they cannot be instantiated anymore, even after one de-installs OOo and reboots, re-installs OOo, reboots and tries to run the test programs that used to run. Finding out the reason will allow solving the problem once and forever. Regards, ---rony 2005/7/15, Rony G. Flatscher [EMAIL PROTECTED]: Hi, w.r.t. my problem description with the subject "Runtime problems when using IntrospectionReflection via Java" I also get a runtime error with your program. [...]
