From c4c7053d1d1cfc0b430b6565448e5b9fcacc60be Mon Sep 17 00:00:00 2001
From: Richard Heck <rikiheck@lyx.org>
Date: Thu, 19 Apr 2018 00:09:41 -0400
Subject: [PATCH] Fix bug #11118.

Adds LFUN_MASTER_BUFFER_EXPORT.
---
 src/FuncCode.h                |  1 +
 src/LyXAction.cpp             | 19 +++++++++++++++++++
 src/frontends/qt4/GuiView.cpp | 17 +++++++++++++++++
 3 files changed, 37 insertions(+)

diff --git a/src/FuncCode.h b/src/FuncCode.h
index 6d2839ab07..f19a3e6095 100644
--- a/src/FuncCode.h
+++ b/src/FuncCode.h
@@ -478,6 +478,7 @@ enum FuncCode
 	LFUN_EXPORT_CANCEL,             // rgh, 20171227
 	LFUN_BUFFER_ANONYMIZE,          // sanda, 20180201
 	LFUN_GRAPHICS_UNIFY,            // sanda, 20180207
+	LFUN_MASTER_BUFFER_EXPORT,      // rkh, 20180417
 	LFUN_LASTACTION                 // end of the table
 };
 
diff --git a/src/LyXAction.cpp b/src/LyXAction.cpp
index 52efe1da12..6e7c96a39c 100644
--- a/src/LyXAction.cpp
+++ b/src/LyXAction.cpp
@@ -2506,6 +2506,25 @@ void LyXAction::init()
 		{ LFUN_MARK_TOGGLE, "mark-toggle", ReadOnly, Edit },
 
 
+/*!
+ * \var lyx::FuncCode lyx::LFUN_MASTER_BUFFER_EXPORT
+ * \li Action: Exports the master buffer (document) to the given format.
+ * \li Syntax: master-buffer-export [<FORMAT>] [<DEST>]
+ * \li Params: <FORMAT> is one of the formats which you can find in 
+                        Tools->Preferences->File formats->Format.
+                        Usual format you will enter is "pdf2" (pdflatex),
+                        "pdflatex" (plain tex for pdflatex) or "ps" for postscript.\n
+                        Note that "custom" is not allowed in this case.\n
+                        If absent or "default", then the default output format of the
+                        document is used.\n
+               <DEST>   If present, this argument provides the export destination
+                        filename. Its containing folder will also be the destination
+                        folder, where all the needed external files will be copied.
+ * \li Origin: rkh, 18 April 2018
+ * \endvar
+ */
+		{ LFUN_MASTER_BUFFER_EXPORT, "master-buffer-export", ReadOnly, Buffer },
+
 /*!
  * \var lyx::FuncCode lyx::LFUN_MASTER_BUFFER_UPDATE
  * \li Action: Update (export) the document built from the master buffer,
diff --git a/src/frontends/qt4/GuiView.cpp b/src/frontends/qt4/GuiView.cpp
index 2e6fbd14f8..a858e8d02e 100644
--- a/src/frontends/qt4/GuiView.cpp
+++ b/src/frontends/qt4/GuiView.cpp
@@ -1865,6 +1865,15 @@ bool GuiView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
 	case LFUN_BUFFER_IMPORT:
 		break;
 
+	case LFUN_MASTER_BUFFER_EXPORT:
+		enable = doc_buffer
+			&& (doc_buffer->parent() != 0
+			    || doc_buffer->hasChildren())
+			&& !d.processing_thread_watcher_.isRunning()
+			// this launches a dialog, which would be in the wrong Buffer
+			&& !(::lyx::operator==(cmd.argument(), "custom"));
+		break;
+
 	case LFUN_MASTER_BUFFER_UPDATE:
 	case LFUN_MASTER_BUFFER_VIEW:
 		enable = doc_buffer
@@ -3701,11 +3710,19 @@ void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
 			importDocument(to_utf8(cmd.argument()));
 			break;
 
+		case LFUN_MASTER_BUFFER_EXPORT:
+			if (doc_buffer)
+				doc_buffer = const_cast<Buffer *>(doc_buffer->masterBuffer());
+			// fall through
 		case LFUN_BUFFER_EXPORT: {
 			if (!doc_buffer)
 				break;
 			// GCC only sees strfwd.h when building merged
 			if (::lyx::operator==(cmd.argument(), "custom")) {
+				// LFUN_MASTER_BUFFER_EXPORT is not enabled for this case,
+				// so the following test should not be needed.
+				// In principle, we could try to switch to such a view...
+				// if (cmd.action() == LFUN_BUFFER_EXPORT)
 				dispatch(FuncRequest(LFUN_DIALOG_SHOW, "sendto"), dr);
 				break;
 			}