Qt: Add some window title variables

Add some new variables to be used in custom window title.

%F = file path of the capture file
%S = a conditional separator (" - ") that only shows when surrounded
     by variables with values or static text

Change-Id: I20a60a3018cc86236f4991030eadb7f51681cc32
Reviewed-on: https://code.wireshark.org/review/29534
Petri-Dish: Stig Bjørlykke <stig@bjorlykke.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>

1 files changed, 22 insertions, 2 deletions

diff --git a/ui/qt/main_window.cpp b/ui/qt/main_window.cpp
index 52d71d69f8..b00fc1d463 100644
--- a/ui/qt/main_window.cpp
+++ b/ui/qt/main_window.cpp
@@ -2167,8 +2167,28 @@ void MainWindow::setTitlebarForCaptureFile()
 
 QString MainWindow::replaceWindowTitleVariables(QString title)
 {
-    title.replace ("%P", get_profile_name());
-    title.replace ("%V", get_ws_vcs_version_info());
+    title.replace("%P", get_profile_name());
+    title.replace("%V", get_ws_vcs_version_info());
+    if (capture_file_.capFile()) {
+        // get_dirname() will overwrite the argument so make a copy first
+        char *filename = g_strdup(capture_file_.capFile()->filename);
+        title.replace("%F", get_dirname(filename));
+        g_free(filename);
+    } else {
+        // No file loaded, no folder name
+        title.remove("%F");
+    }
+
+    // %S is a conditional separator (" - ") that only shows when surrounded by variables
+    // with values or static text. Remove repeating, leading and trailing separators.
+    title.replace(QRegExp("(%S)+"), "%S");
+    title.replace(QRegExp("^%S|%S$"), "");
+#ifdef __APPLE__
+    // On macOS we separate with a unicode em dash
+    title.replace("%S", " " UTF8_EM_DASH " ");
+#else
+    title.replace("%S", " - ");
+#endif
 
     return title;
 }