Fix bugs #6871 and #8119.

[lyx.git] / src / frontends / Application.h

diff --git a/src/frontends/Application.h b/src/frontends/Application.h
index c12d8a938d301c8e0794d2676fdd0fc6f2b0d375..0bba5cea55a94320e467c7c1f7a87d109c2e26a3 100644 (file)
--- a/src/frontends/Application.h
+++ b/src/frontends/Application.h
@@ -239,6 +239,14 @@ public:
        /// Handle a accented char key sequence
        /// FIXME: this is only needed for LFUN_ACCENT_* in Text::dispatch()
        virtual void handleKeyFunc(FuncCode action) = 0;
+
+       /// Start a long operation with some cancel possibility (button or ESC)
+       virtual void startLongOperation() = 0;
+       /// This needs to be periodically called to avoid freezing the GUI
+       virtual bool longOperationCancelled() = 0;
+       /// Stop the long operation mode (i.e., release the GUI)
+       virtual void stopLongOperation() = 0;
+
 };
 
 /// Return the list of loadable formats.