Add scroll-down button

2 files changed, 30 insertions, 0 deletions

diff --git a/include/TimelineView.h b/include/TimelineView.h
index 400b0db0..83247948 100644
--- a/include/TimelineView.h
+++ b/include/TimelineView.h
@@ -34,6 +34,8 @@
 #include "RoomInfoListItem.h"
 #include "Text.h"
 
+class FloatingButton;
+
 namespace msgs   = matrix::events::messages;
 namespace events = matrix::events;
 
@@ -155,6 +157,8 @@ private:
         int oldPosition_;
         int oldHeight_;
 
+        FloatingButton *scrollDownBtn_;
+
         TimelineDirection lastMessageDirection_;
 
         // The events currently rendered. Used for duplicate detection.
diff --git a/include/ui/FloatingButton.h b/include/ui/FloatingButton.h
new file mode 100644
index 00000000..91e99ebb
--- /dev/null
+++ b/include/ui/FloatingButton.h
@@ -0,0 +1,26 @@
+#pragma once
+
+#include "RaisedButton.h"
+
+constexpr int DIAMETER  = 40;
+constexpr int ICON_SIZE = 18;
+
+constexpr int OFFSET_X = 30;
+constexpr int OFFSET_Y = 20;
+
+class FloatingButton : public RaisedButton
+{
+        Q_OBJECT
+
+public:
+        FloatingButton(const QIcon &icon, QWidget *parent = nullptr);
+
+        QSize sizeHint() const override { return QSize(DIAMETER, DIAMETER); };
+        QRect buttonGeometry() const;
+
+protected:
+        bool event(QEvent *event) override;
+        bool eventFilter(QObject *obj, QEvent *event) override;
+
+        void paintEvent(QPaintEvent *event) override;
+};