* library/console.tcl:

	* library/entry.tcl:
	* library/spinbox.tcl:
	* library/text.tcl:
	* library/tk.tcl: added private ::tk::GetSelection command to
	handle requesting selection.  This is to support requesting
	UTF8_STRING before generic STRING on Unix.  Changed Text, Spinbox,
	Entry and Console to use this command.

	* tests/select.test:
	* generic/tkSelect.c (Tk_CreateSelHandler, Tk_DeleteSelHandler):
	on Unix, a UTF8_STRING handler will be created when the user
	requests a STRING handler (in addition to the STRING handler).
	This provides implicit support for the new UTF8_STRING selection
	target.
	* unix/tkUnixSelect.c (TkSelEventProc, ConvertSelection): Added
	support for UTF8_STRING target. [RFE #418653, Patch #433283]

	* generic/tkInt.h: added utf8Atom to TkDisplay structure.


FossilOrigin-Name: 3993717faaae94fc303c678c9c3637465ce2c0a4

1 files changed, 33 insertions, 1 deletions

diff --git a/library/tk.tcl b/library/tk.tcl
index daba5d6..64afbe7 100644
--- a/library/tk.tcl
+++ b/library/tk.tcl
@@ -3,7 +3,7 @@
 # Initialization script normally executed in the interpreter for each
 # Tk-based application.  Arranges class bindings for widgets.
 #
-# RCS: @(#) $Id: tk.tcl,v 1.29 2001/03/31 05:46:10 hobbs Exp $
+# RCS: @(#) $Id: tk.tcl,v 1.30 2001/07/03 01:03:16 hobbs Exp $
 #
 # Copyright (c) 1992-1994 The Regents of the University of California.
 # Copyright (c) 1994-1996 Sun Microsystems, Inc.
@@ -151,6 +151,38 @@ proc ::tk::RestoreFocusGrab {grab focus {destroy destroy}} {
     }
 }
 
+# ::tk::GetSelection --
+#   This tries to obtain the default selection.  On Unix, we first try
+#   and get a UTF8_STRING, a type supported by modern Unix apps for
+#   passing Unicode data safely.  We fall back on the default STRING
+#   type otherwise.  On Windows, only the STRING type is necessary.
+# Arguments:
+#   w	The widget for which the selection will be retrieved.
+#	Important for the -displayof property.
+#   sel	The source of the selection (PRIMARY or CLIPBOARD)
+# Results:
+#   Returns the selection, or an error if none could be found
+#
+if {[string equal $tcl_platform(platform) "unix"]} {
+    proc ::tk::GetSelection {w {sel PRIMARY}} {
+	if {[catch {selection get -displayof $w -selection $sel \
+		-type UTF8_STRING} txt] \
+		&& [catch {selection get -displayof $w -selection $sel} txt]} {
+	    return -code error "could not find default selection"
+	} else {
+	    return $txt
+	}
+    }
+} else {
+    proc ::tk::GetSelection {w {sel PRIMARY}} {
+	if {[catch {selection get -displayof $w -selection $sel} txt]} {
+	    return -code error "could not find default selection"
+	} else {
+	    return $txt
+	}
+    }
+}
+
 # tkScreenChanged --
 # This procedure is invoked by the binding mechanism whenever the
 # "current" screen is changing.  The procedure does two things.