From ff363bc77b56a6e9ba8d960537ef31b394a2ad78 Mon Sep 17 00:00:00 2001
From: jp9000 <obs.jim@gmail.com>
Date: Mon, 23 Mar 2015 19:15:19 -0700
Subject: [PATCH] UI: Add QListWidget subclass to emit focus change

The FocusList subclass of QListWidget emits a GotFocus signal when it
gets focus -- used for the filters window to know when a specific filter
list gets focus.
---
 obs/CMakeLists.txt |  2 ++
 obs/focus-list.cpp | 10 ++++++++++
 obs/focus-list.hpp | 17 +++++++++++++++++
 3 files changed, 29 insertions(+)
 create mode 100644 obs/focus-list.cpp
 create mode 100644 obs/focus-list.hpp

diff --git a/obs/CMakeLists.txt b/obs/CMakeLists.txt
index 761841e19..fd0eacee7 100644
--- a/obs/CMakeLists.txt
+++ b/obs/CMakeLists.txt
@@ -104,6 +104,7 @@ set(obs_SOURCES
 	window-log-reply.cpp
 	window-remux.cpp
 	properties-view.cpp
+	focus-list.cpp
 	double-slider.cpp
 	volume-control.cpp
 	adv-audio-control.cpp
@@ -135,6 +136,7 @@ set(obs_HEADERS
 	properties-view.hpp
 	display-helpers.hpp
 	double-slider.hpp
+	focus-list.hpp
 	mute-checkbox.hpp
 	volume-control.hpp
 	adv-audio-control.hpp
diff --git a/obs/focus-list.cpp b/obs/focus-list.cpp
new file mode 100644
index 000000000..bf8bd461e
--- /dev/null
+++ b/obs/focus-list.cpp
@@ -0,0 +1,10 @@
+#include "focus-list.hpp"
+
+FocusList::FocusList(QWidget *parent) : QListWidget(parent) {}
+
+void FocusList::focusInEvent(QFocusEvent *event)
+{
+	QListWidget::focusInEvent(event);
+
+	emit GotFocus();
+}
diff --git a/obs/focus-list.hpp b/obs/focus-list.hpp
new file mode 100644
index 000000000..367d3873b
--- /dev/null
+++ b/obs/focus-list.hpp
@@ -0,0 +1,17 @@
+#pragma once
+
+#include <QListWidget>
+
+class FocusList : public QListWidget
+{
+	Q_OBJECT
+
+public:
+	FocusList(QWidget *parent);
+
+protected:
+	void focusInEvent(QFocusEvent *event) override;
+
+signals:
+	void GotFocus();
+};