X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Ffrontends%2Fqt4%2FGuiSelection.h;h=1567b3e697f5f4734e6bcae98fa30542270686d2;hb=425d092204118ea6c24c28e85fdf03fcf2bb51a4;hp=fffb803b90f4bd5de8932dc1d46c2a8fbc1e4c6e;hpb=6fcb3fe6a2cab344b2cb15ac5c81cee831c7b886;p=lyx.git

diff --git a/src/frontends/qt4/GuiSelection.h b/src/frontends/qt4/GuiSelection.h
index fffb803b90..1567b3e697 100644
--- a/src/frontends/qt4/GuiSelection.h
+++ b/src/frontends/qt4/GuiSelection.h
@@ -11,20 +11,24 @@
  * Full author contact details are available in file CREDITS.
  */
 
-#ifndef SELECTION_H
-#define SELECTION_H
+#ifndef GUISELECTION_H
+#define GUISELECTION_H
 
 #include "frontends/Selection.h"
 
+#include <QObject>
+
 namespace lyx {
 namespace frontend {
 
 /**
  * The Qt4 version of the Selection.
  */
-class GuiSelection: public Selection
+class GuiSelection : public QObject, public Selection
 {
+	Q_OBJECT
 public:
+	GuiSelection();
 	virtual ~GuiSelection() {}
 
 	/** Selection overloaded methods
@@ -33,11 +37,25 @@ public:
 	void haveSelection(bool own);
 	docstring const get() const;
 	void put(docstring const & str);
-	bool isInternal() const;
+	bool empty() const;
 	//@}
+
+private Q_SLOTS:
+	void on_dataChanged();
+
+private:
+	// Direct call clipboard()->text(QClipboard::Selection) inside onDataChanged causes
+	// selection to be obtained. Now imagine the some LyX instance A, when making selection -
+	// each change triggers onDataChange in all others instances for each mouse
+	// or keyboard move. This in turn causes many calls of requestSelection in A
+	// which interferes with the selecting itself. As a result middle button pasting
+	// for more instances don't work and debugging is a hell. So we just schedule
+	// obtaining of selection on the time empty() is actually called.
+	mutable bool schedule_check_;
+	bool const selection_supported_;
 };
 
 } // namespace frontend
 } // namespace lyx
 
-#endif // SELECTION_H
+#endif // GUISELECTION_H