Add context menu to filebrowser

src/activities/home/FileContextMenuActivity.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#include <string>
+
+#include "../MenuListActivity.h"
+
+// Context menu shown when the user long-presses the info button on a file in the file browser.
+// The available actions depend on file type.  The selected action is returned via MenuResult::action.
+class FileContextMenuActivity final : public MenuListActivity {
+ public:
+  enum class Action {
+    None = -1,
+    Open = 0,
+    FetchAndOpen,
+    MarkAsRead,
+    Info,
+    DeleteCache,
+    SetAsSleepCover,
+    FlashFirmware,
+    Remove,
+  };
+
+  explicit FileContextMenuActivity(GfxRenderer& renderer, MappedInputManager& mappedInput,
+                                   const std::string& filePath);
+
+  void render(RenderLock&&) override;
+
+ private:
+  std::string filePath;
+
+  void onActionSelected(int index) override;
+  void onBackPressed() override;
+};