core: add additional notification callback

Especially on slower devices with a large dive list the startup time has
become really long. This callback allows us to give the user an idea of
what the app is doing during that time.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/core/qthelper.cpp b/core/qthelper.cpp
index 7e3b58b11..7b879e7d6 100644
--- a/core/qthelper.cpp
+++ b/core/qthelper.cpp
@@ -1642,6 +1642,15 @@ char *copy_qstring(const QString &s)
 	return strdup(qPrintable(s));
 }
 
+// function to call to allow the UI to show updates for longer running activities
+void (*uiNotificationCallback)(QString msg) = nullptr;
+
+void uiNotification(const QString &msg)
+{
+	if (uiNotificationCallback != nullptr)
+		uiNotificationCallback(msg);
+}
+
 // function to call to get changes for a git commit
 QString (*changesCallback)() = nullptr;