We already allowed a counter declaraton for flex insets. We just

didn't do anything with it. So let's do something with it.

Fixes bug #8470.

lib/layouts/endnotes.module

@@ -6,10 +6,15 @@
 
 Format 45
 
+Counter endnotes
+    PrettyFormat "Endnote ##"
+End
+
 InsetLayout Flex:Endnote
    LyXType     custom
    LatexName   endnote
    LatexType   command
+   Counter     endnotes
    Decoration  classic
    Font
      Size Small

src/insets/InsetFlex.cpp

@@ -19,7 +19,9 @@
 #include "Cursor.h"
 #include "FuncRequest.h"
 #include "FuncStatus.h"
+#include "Language.h"
 #include "Lexer.h"
+#include "ParIterator.h"
 #include "TextClass.h"
 
 #include "support/gettext.h"
@@ -124,4 +126,26 @@ void InsetFlex::doDispatch(Cursor & cur, FuncRequest & cmd)
 }
 
 
+void InsetFlex::updateBuffer(ParIterator const & it, UpdateType utype)
+{
+	BufferParams const & bp = buffer().masterBuffer()->params();
+	Counters & cnts = bp.documentClass().counters();
+	if (utype == OutputUpdate) {
+		// the counter is local to this inset
+		cnts.saveLastCounter();
+	}
+	InsetLayout const & il = getLayout();
+	docstring const & count = il.counter();
+	docstring custom_label = translateIfPossible(il.labelstring());
+	if (cnts.hasCounter(count))
+		cnts.step(count, utype);
+	custom_label += ' ' +
+		cnts.theCounter(count, it.paragraph().getParLanguage(bp)->code());
+	setLabel(custom_label);
+	InsetCollapsable::updateBuffer(it, utype);
+	if (utype == OutputUpdate)
+		cnts.restoreLastCounter();
+}
+
+
 } // namespace lyx

src/insets/InsetFlex.h

@@ -45,6 +45,8 @@ public:
 		FuncStatus &) const;
 	///
 	void doDispatch(Cursor & cur, FuncRequest & cmd);
+	///
+	void updateBuffer(ParIterator const & it, UpdateType utype);
 
 protected:
 	///

src/insets/InsetFoot.cpp

@@ -48,10 +48,10 @@ void InsetFoot::updateBuffer(ParIterator const & it, UpdateType utype)
 	if (!outer.layout().intitle) {
 		InsetLayout const & il = getLayout();
 		docstring const & count = il.counter();
-		custom_label_ = translateIfPossible(il.labelstring()) + ' ';
+		custom_label_ = translateIfPossible(il.labelstring());
 		if (cnts.hasCounter(count))
 			cnts.step(count, utype);
-		custom_label_ += 
+		custom_label_ += ' ' +
 			cnts.theCounter(count, outer.getParLanguage(bp)->code());
 		setLabel(custom_label_);
 	}