a=edburns
bug=32011
This change enables the current webclient API to be called from native
code.
It adds makefile and conditional compilation logic.
If the user defines BAL_INTERFACE in their environment before building
webclient, -DBAL_INTERFACE is added to LCFLAGS. This causes code in
jni_util_export.cpp to behave differently due to the conditional
compilation logic.
I've broken out the 8 functions that are necessary to call into the
Webclient JNI methods into jni_util_export.{h,cpp}.
I've created a new pair of files, bal_util.{h,cpp} that contain function
declarations and definitions that are used when src_moz is built with
BAL_INTERFACE. bal_util.obj is not built, nor added to webclient.dll if
building without BAL_INTERFACE.
See the page
http://www.mozilla.org/projects/blackwood/webclient/design/uno-transition.html
for a design document description of these changes.
r=ashuk
a=edburns
This set of changes replaces all occurrences of
env->Func(args...)
with
::util_Func(env, args...)
Except of course, for the implementations of the above mentioned
::util_Func() functions.
This is done to allow the JNI functions to be called from a non JNI
context, such as UNO.
also modifies EmbeddedMozilla so this code is exercised.
I have changed EmbeddedMozilla to be a stub-like class that simply
displays a Frame with a single Button, titled "New Window". Pressing
this button causes an EMWindow to be created and displayed. EMWindow is
basically the former EmbeddedMozilla renamed, with modifications to the
WindowListener implementation to call the BrowserControl deallocation
method.
I've added a delete() method to ImplObect:
* I know Java has automatic garbage collection and all, but explicitly
* adding a delete method helps the gc algorithm out. <P>
* Subclasses should override this and call super.delete() at the end of
* their overridden delete() method.
* @see org.mozilla.webclient.wrapper_native.ImplObjectNative#delete
and ImplObjectNative:
* Note how we call super.delete() at the end. THIS IS VERY IMPORTANT. <P>
* Also, note how we don't de-allocate nativeWebShell, that is done in
* the class that owns the nativeWebShell reference, WindowControlImpl.
* ImplObjectNative subclasses that further override delete() are <P>
<CODE><PRE>
BookmarksImpl.java
EventRegistrationImpl.java
NativeEventThread.java
WindowControlImpl.java
</PRE><CODE> <P>
* All other ImplObject subclasses don't have any local Ivars and thus
* don't need to override delete().
I've added a delete() method to BrowserControlImpl:
* Called from BrowserControlFactory.deleteBrowserControl() <P>
* The order of deletion of objects is very important! <P>
* We don't allow deletion if the Canvas is showing. <P>
In BrowserControlImpl's delete(), the important delete()s is for
WindowControlImpl:
* First, we delete our eventThread, which causes the eventThread to
* stop running. Then we call nativeDestroyInitContext(), which
* deallocates native resources for this window.
As stated above, NativeEventThread.delete() is called:
* This is a very delicate method, and possibly subject to race
* condition problems. To combat this, our first step is to set our
* browserControlCanvas to null, within a synchronized block which
* synchronizes on the same object used in the run() method's event
* loop. By setting the browserControlCanvas ivar to null, we cause the
* run method to return.
After all of this deleting, we return from
BrowserControlFactory.delete().
edburns%acm.org
ashuk%eng.sun.com