[LyX/master] Sync doc CT settings with dialog-external change of status (#12703)

[Juergen Spitzmueller]

commit 3a02e477a00077e5442d8e34e92690d26a7ed4ae
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Tue Mar 21 10:24:34 2023 +0100

    Sync doc CT settings with dialog-external change of status (#12703)
---
 src/frontends/qt/GuiDocument.cpp |   11 +++++++++++
 src/frontends/qt/GuiDocument.h   |    1 +
 src/frontends/qt/GuiView.cpp     |   17 +++++++++++++++++
 src/frontends/qt/GuiView.h       |    2 ++
 4 files changed, 31 insertions(+), 0 deletions(-)

diff --git a/src/frontends/qt/GuiDocument.cpp b/src/frontends/qt/GuiDocument.cpp
index f92c129..b72d17b 100644
--- a/src/frontends/qt/GuiDocument.cpp
+++ b/src/frontends/qt/GuiDocument.cpp
@@ -19,6 +19,7 @@
 #include "GuiApplication.h"
 #include "GuiBranches.h"
 #include "GuiIndices.h"
+#include "GuiView.h"
 #include "GuiSelectionManager.h"
 #include "LaTeXHighlighter.h"
 #include "Validator.h"
@@ -1380,6 +1381,8 @@ GuiDocument::GuiDocument(GuiView & lv)
 		this, SLOT(outputChangesToggled(bool)));
 	connect(changesModule->changeBarsCB, SIGNAL(clicked()),
 		this, SLOT(change_adaptor()));
+	connect(&lv, SIGNAL(changeTrackingToggled(bool)),
+		this, SLOT(changeTrackingChanged(bool)));
 
 
 	// numbering
@@ -1904,6 +1907,14 @@ void GuiDocument::bookmarksopenChanged(bool state)
 }
 
 
+void GuiDocument::changeTrackingChanged(bool state)
+{
+	// This is triggered if the CT state is toggled outside
+	// the document dialog (e.g., menu).
+	changesModule->trackChangesCB->setChecked(state);
+}
+
+
 void GuiDocument::slotApply()
 {
 	bool only_shellescape_changed = !nonModuleChanged_ && !modulesChanged_;
diff --git a/src/frontends/qt/GuiDocument.h b/src/frontends/qt/GuiDocument.h
index 248e584..dbdf34f 100644
--- a/src/frontends/qt/GuiDocument.h
+++ b/src/frontends/qt/GuiDocument.h
@@ -168,6 +168,7 @@ private Q_SLOTS:
 	void outputChangesToggled(bool);
 	void setOutputSync(bool);
 	void bookmarksopenChanged(bool);
+	void changeTrackingChanged(bool);
 private:
 	/// validate listings parameters and return an error message, if any
 	QString validateListingsParameters();
diff --git a/src/frontends/qt/GuiView.cpp b/src/frontends/qt/GuiView.cpp
index 9a35311..6518216 100644
--- a/src/frontends/qt/GuiView.cpp
+++ b/src/frontends/qt/GuiView.cpp
@@ -2446,6 +2446,14 @@ bool GuiView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
 		break;
 	}
 
+	case LFUN_CHANGES_TRACK: {
+		if (!doc_buffer) {
+			enable = false;
+			break;
+		}
+		return doc_buffer->getStatus(cmd, flag);
+	}
+
 	case LFUN_VIEW_SPLIT:
 		if (cmd.getArg(0) == "vertical")
 			enable = doc_buffer && (d.splitter_->count() == 1 ||
@@ -4528,6 +4536,15 @@ void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
 			doc_buffer->runChktex();
 			break;
 
+		case LFUN_CHANGES_TRACK: {
+			// the actual dispatch is done in Buffer
+			dispatchToBufferView(cmd, dr);
+			// but we inform the GUI (document settings) if this is toggled
+			LASSERT(doc_buffer, break);
+			Q_EMIT changeTrackingToggled(doc_buffer->params().track_changes);
+			break;
+		}
+
 		case LFUN_COMMAND_EXECUTE: {
 			command_execute_ = true;
 			minibuffer_focus_ = true;
diff --git a/src/frontends/qt/GuiView.h b/src/frontends/qt/GuiView.h
index 29687c3..8453c47 100644
--- a/src/frontends/qt/GuiView.h
+++ b/src/frontends/qt/GuiView.h
@@ -230,6 +230,8 @@ Q_SIGNALS:
 	void currentZoomChanged(int);
 	/// emitted when script is killed (e.g., user cancels export)
 	void scriptKilled();
+	/// emitted when track changes status toggled
+	void changeTrackingToggled(bool);
 
 public Q_SLOTS:
 	///