Initial patch for citation-insert

src/BufferView.cpp

@@ -54,6 +54,7 @@
 #include "WordLangTuple.h"
 
 #include "insets/InsetBibtex.h"
+#include "insets/InsetCitation.h"
 #include "insets/InsetCommand.h" // ChangeRefs
 #include "insets/InsetExternal.h"
 #include "insets/InsetGraphics.h"
@@ -1907,6 +1908,23 @@ void BufferView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
 			arg = token(argument, '|', 0);
 			opt1 = token(argument, '|', 1);
 		}
+
+		// if our cursor is direclty in front of or behind a citation inset,
+		// we will instead add the new key to it.
+		Inset * inset = cur.nextInset();
+		if (!inset || inset->lyxCode() != CITE_CODE)
+			inset = cur.prevInset();
+		if (inset->lyxCode() == CITE_CODE) {
+			InsetCitation * icite = static_cast<InsetCitation *>(inset);
+			if (icite->addKey(arg)) {
+				dr.forceBufferUpdate();
+				dr.screenUpdate(Update::FitCursor | Update::SinglePar);
+				if (!opt1.empty())
+					LYXERR0("Discarding optional argument to citation-insert.");
+			}
+			dispatched = true;
+			break;
+		}
 		InsetCommandParams icp(CITE_CODE);
 		icp["key"] = from_utf8(arg);
 		if (!opt1.empty())

src/insets/InsetCitation.cpp

@@ -122,6 +122,32 @@ void InsetCitation::doDispatch(Cursor & cur, FuncRequest & cmd)
 }
 
 
+bool InsetCitation::addKey(string const & key)
+{
+	docstring const ukey = from_utf8(key);
+	docstring const & curkeys = getParam("key");
+	if (curkeys.empty()) {
+		setParam("key", ukey);
+		cache.recalculate = true;
+		return true;
+	}
+
+	vector<docstring> keys = getVectorFromString(curkeys);
+	vector<docstring>::const_iterator it = keys.begin();
+	vector<docstring>::const_iterator en = keys.end();
+	for (; it != en; ++it) {
+		if (*it == ukey) {
+			LYXERR0("Key " << key << " already present.");
+			return false;
+		}
+	}
+	keys.push_back(ukey);
+	setParam("key", getStringFromVector(keys));
+	cache.recalculate = true;
+	return true;
+}
+
+
 docstring InsetCitation::toolTip(BufferView const & bv, int, int) const
 {
 	Buffer const & buf = bv.buffer();

src/insets/InsetCitation.h

@@ -16,6 +16,7 @@
 #include "InsetCommand.h"
 
 #include "Citation.h"
+#include "support/strfwd.h"
 
 namespace lyx {
 
@@ -34,6 +35,9 @@ public:
 	///
 	~InsetCitation();
 
+	///
+	bool addKey(std::string const & key);
+
 	/// \name Public functions inherited from Inset class
 	//@{
 	///