#### This file contains detailed description of the
#### changes made to the plugin source.

**** Start from the end of this file for the most recent changes

Early July 97 : (failed after the 10th) attempt to keep a log the changes. (DL)

7/2/97 (new feature) First version using autoconf (unix) : configure...
Lots of changes everywhere... (DL)

7/2/97 (new feature) Binary tclets are now ok. (DL)

7/7/97 (bug fixes) Improvements in autoconf/configure/Makefile.
tested ok on Solaris 2.5.1 and SunOS 4.1.4 (DL)

7/10/97 (change of feature) Tcl/Tk has tcl/tkLibObjs as an echo target
instead of a .lst file, corresponding changes in plugin makefile/configure.
Taking advantage of new "make objs" target in tcl/tk too.
Temporarily discontinued support for TCL/TK.patch (latest TCL/TK
development source tree is needed) (DL)

Jul-Aug 97 (changes) Lots of changes ! (DL & JL)

8/26/97 (major cleanup) Big simplification of architecture and
organization. (DL)

Sept 97 and Early Oct 97 : more major changes, the accurate changes
log will start after the first 2.0 beta release (2.0.3-beta).
For high level changes see the (upcoming) what's new section 
in doc/ or on the web at http://sunscript.sun.com/plugin/  (DL & JL)

---- Tcl Plugin 2.0.3-beta released, start of accurate changes log ----

10/13/97 (bug fix) Added tk_library to list of restored variables in
the unsafe feature. (JL)

10/13/97 (bug fix) SHELL=/bin/sh needed in Makefile.in for some
platforms. (DL)

10/13/97 (bug fix) Disable font scaling because in the plugin context
all sizes are absolute in pixels. (DL)

10/13/97 (bug fix) NotifyError was called without the right number of args
in the (unlikely) case where installed.cfg was not found. (JI)

10/16/97 (missing features & fixes) wm geometry querying now allowed through
new wm alias. Generalized the "checkArgs" utility proc and moved it from 
safefeature::network to safefeature::. Improved error logging.
Lints and more explanations in some comments. Added "width" and
"height" to the attributes list. Setting a better "tk appname" for
the tclets and the plugin itself. Updated the console.tcl. {next
step is to use the latest one from Jeffrey, when I'll manage
to make it work} (DL)

10/17/97 added "cfg::clear" to clear config cache for a given config. added
optional config to the section argument of "ifallowed" and numerous
tests (syntax is "config/section"). added an "include" directive to config 
files (ie sourcing in the current config directory). made multiple/mixed 
recursion in allowed/ifallowed/sourcing working. (DL)

10/17/97 (bug fix) windows installer script was not properly referencing
the IE registry key to remove. (DL,JL)

10/22/97 (doc lints)

10/23/97 (bug fix) Forget container was called before the last (potential)
use of the window by the tclet. (JI)

10/23/97 (cleanup) removed some more DStringAppend and replaced by
DStringAppendElement when constructing the scripts to evaluate.
{next step is to use objects instead...}. (DL)

10/30/97 (bug fix) added fixed tkCanvPs.c so canvas postscript
command works in tclets (unix only {would work on windows too if
we'd change tk80.dll or make a fat library}). (DL)

10/30/97 changed configure and build processes to be based on and 
require tcl/tk 8.0p1. (DL)

11/3/97 added https: in the list of valid protocols for urls. (DL)

11/3/97 added a browser::sendMail command. (DL)

11/3/97 posting now always use the file option because it does not
work well otherwise. (DL)

11/3/97 added a "frames" section for checking which target frames 
are allowed by a given policy, can be used to limit to some frames
and disable the magic targets _* (_parent, _self, _blank...). The
home policy can access any frame except the empty one. Javascript can 
now use the {} frame which means an asynchronous callback (useful for
mailto: for instance (though you can now use the new "sendMail" as a
shortcut). (DL)

11/4/97 changed the low level logging so it can save in different log
files between the external process (tclshp) and the in proc Tcl. (DL)

11/4/97 simplified even more the C flow, specially the SetWindow code.
Changed the NpPlatform (private) API names to reflect more closely what 
is going on and the way they'll be used on the Macintosh. (DL)

11/10/97 improved unix installer so it moves away and make backup copy
of previous Tcl plugin installs' files. it also better handle 
"Test It!" failures (checking exec result). It also now requires
that the user enter something describing what is wrong and gives
some choices to start from. (DL)

11/10/97 added a (pretty nice) default error management, all tclets will 
now start with a working bgerror, uncaught error are be displayed (nicely)
within the Tclet (for security reason, to avoid abuse). changed tclet
startup code so it use the bgerror if needed. (DL)

11/11/97 added a micro console mode in the bgerror to you can (eventually)
debug the tclets interactively or query more information inline. 
you can popup the microconsole by hitting the hot console key combination
Ctrl-Shift-C. (DL)

11/11/97 clean up of some package dependencies and other lints. Added a 
filter proc to logging package. Using it to reduce the log flood (due 
to auto-loading for instance). (DL)

11/12/97 added a timeout to the internal call to javascript call
currently used to get inline tclets origin url for the case where 
javascript is disabled on the browser. Note that browser::javascript,
 inproc, with Netscape 4 on unix does not work properly (always seem 
to timeout) unless you use the optional callback. Note also there is
a javascript security exception generated in the multi tclets/multi
frames case when we try to get the location.href... (DL)

11/12/97 failure when installing security features for a given policy
previously resulted in a silent killing of the tclet (for security
reasons) now it also notifies the user (NotifyError) of a probable
mis-configuration. (DL)

11/12/97 the "hidden" embed args now automatically implies "tk=0".
misc lints in plugmain.tcl. added error management for tk-less tclets
(just logging to master). improved code invocation in tclets.
bug fix: the validity of the timeout argument was not checked.
Made the callback in slave generate bgerror's in case of error. (DL)

11/13/97 added a "maxFrames" variable to limit the total amount of
frames that can be used by all the tclets. security fix. updated
part of the documentation. (DL)

11/14/97 Improved the Win32 installer so it now saves an older installation
of the 2.0 plugin if found, and gives a message to the user explaining how
to get back any modifications they made in that older installation. (JL)

---- Released Tcl Plugin 2.0.4-beta - Nov 14th 1997 ----

11/21-26/97 More security fixes in both the plugin and the base Safe-Tcl/Tk.
Tcl/Tk-p2+'plugin fixes' is needed to get the full fixes (tmp). (DL)

11/21/97 Added a working tcl::autoReset utility allowing the tclets
using the unsafe feature to properly find packages. (DL)

11/26/96 Added safe type checking utilities and C side tcl::quote
utility and tests. (DL)

11/26/97 Make sure the default auto_path does not contain
invalid build time tcl_pkgPath which could cause a different
tk.so to be loaded and thus crash. (DL)

11/27/97 Make sure that tclshp use the plugin(dir) to find Tcl and Tk
library and does not depend on TCL_LIBRARY or TK_LIBRARY. Moved 
common initialization from plugmain.tcl to Plug_Init. (DL)

12/1/97 Preparation for 2.0.5-beta release. Added a platform
argument to unix staging makefile target and unix installer,
uniformized distributions naming scheme. Removed the tcl/tk
version string from the paths because the right plugin version is
already required/enforced in the plugin to directory. Added 
make runtest target on unix. (DL)

12/2/97 Using the username as part of the ::cfg::Tmp temp
directory on unix (used by persistance storage). Made persist
directories mapping using "dirN" instead of "tcletN" to avoid
confusion with the interp name. Added a "glob" alias to the
persist feature. (DL)

12/2/97 The "log" alias in the tclet now accepts any number of 
arguments. (DL)

12/2/97 External wish not based on the plugin versions of Tcl and
Tk will not work: dynamically load your extensions into the provided
version, or if you need statically linked extensions, use the
source distribution to add your extensions in the tclAppInit.c
**** POTENTIAL INCOMPATIBILITY ****

12/2/97 No splash screen when there is an inline tclet. (DL)

12/3/97 Unix: Added the NPX_PLUGIN_PATH to the list of directories
searched for finding the plugin library. Made the search order
match Netscape search order for plugins. (DL)

12/4/97 Switched (back) to a naming scheme and numbering consistent
with Tcl and Tk habits for the external release patchLevel and names.
While also exposing the internal, machine parseable 4 digits release 
numbers: MajorVersion,MinorVersion,ReleaseLevel,ReleaseSerial
For the plugin package version, and in order that 2.0b5 is found
newer than 2.0.4 we use for the 2.0 series  
MajorVersion.MinorVersion.(ReleaseLevel*100+ReleaseSerial)
so 2.0.105 is the new plugin package version. For 2.1 or later
we will probably use 2.1.level.serial (DL)
**** POTENTIAL INCOMPATIBILITY ****

12/4/97 Handle the case where the persist can't get at it's temp
storage directory. Made sure feature installation error reporting
is done correctly. (DL)

12/4/97 First alpha level release of source code for the 
Macintosh plugin. (JI)

12/4/97 Bug fix in Windows installer for NS4 plugins directory
determination and other improvements to the windows installer
script. (DL)

12/8/97 (tk bug fix) on Windows, using "winfo pathname" before "." was mapped
was crashing. (DL)

---- Released Tcl Plugin 2.0b5 - Dec 5th 1997 ----

12/12/97 (bug fix) The NPX_PLUGIN_PATH was in fact not searched
properly. (DL)

Jan/1/98 (portability bug fix) Using the proper Xt types to allow
compilation on some unix platforms. (DL)

Jan/13/98 (workaround) Changes in initialization path to try to
get at least minimally working plugin with any 8.0 user specified
wish. THIS IS NOT THE RECOMMENDED NOR SUPPORTED CONFIGURATION.
You should use the tclshp/wish built specifically for the plugin. (DL)

Jan/15/98 (change) the policy mechanism does not install a featureDir
directory in the auto_path anymore, because it is not needed in
Tcl or the Plugin as the parent of that directory is already in
the auto_path. (DL)

Jan/15/98 (fix) For non plugin specific external wish, the shared
library path should not be changed and on windows, the current
directory must be changed. (DL)

Jan/16/98 (improvements) In the manual pages. (JYL)

Jan/21/98 (fix) Improved Windows installer to detect when NS3 is not
installed. Improved unix installer portability. (DL)

---- Released Tcl Plugin 2.0 - Jan 21th 1998 ----

Jan/22/98 (fix) Manual Pages lints. Html version generation. (DL)

Feb/26/98 (improvement) Rpi package: added delete method call as the 
default action upon linkDown. (DL)

---- New (source only) Release Tcl Plugin 2.0 - March 11 1998 ----

