Presenter: Add `Presentation::has_a_[next,previous]_frame()`

2 files changed, 12 insertions, 0 deletions

diff --git a/Userland/Applications/Presenter/Presentation.cpp b/Userland/Applications/Presenter/Presentation.cpp
index cdd6f7321f..fa4e86e028 100644
--- a/Userland/Applications/Presenter/Presentation.cpp
+++ b/Userland/Applications/Presenter/Presentation.cpp
@@ -41,6 +41,16 @@ StringView Presentation::author() const
     return "Unknown Author"sv;
 }
 
+bool Presentation::has_a_next_frame() const
+{
+    return m_current_slide < u32(m_slides.size() > 1 ? m_slides.size() - 1 : 0);
+}
+
+bool Presentation::has_a_previous_frame() const
+{
+    return m_current_slide > 0u;
+}
+
 void Presentation::next_frame()
 {
     m_current_frame_in_slide++;
diff --git a/Userland/Applications/Presenter/Presentation.h b/Userland/Applications/Presenter/Presentation.h
index f2e6084d0a..210c9fefd1 100644
--- a/Userland/Applications/Presenter/Presentation.h
+++ b/Userland/Applications/Presenter/Presentation.h
@@ -32,6 +32,8 @@ public:
     unsigned current_slide_number() const { return m_current_slide.value(); }
     unsigned current_frame_in_slide_number() const { return m_current_frame_in_slide.value(); }
 
+    bool has_a_next_frame() const;
+    bool has_a_previous_frame() const;
     void next_frame();
     void previous_frame();
     void go_to_first_slide();