feat: epub bookmarks (#1337)

Co-authored-by: vedi0boy <nate@origin8publishing.com>
Co-authored-by: Uri Tauber <uritaube@gmail.com>

src/activities/reader/EpubReaderActivity.h

@@ -6,6 +6,7 @@
 #include <optional>
 
 #include "EpubReaderMenuActivity.h"
+#include "ProgressMapper.h"
 #include "activities/Activity.h"
 
 class EpubReaderActivity final : public Activity {
@@ -31,9 +32,12 @@ class EpubReaderActivity final : public Activity {
   bool pendingSyncSaveError = false;
   bool skipNextButtonCheck = false;  // Skip button processing for one frame after subactivity exit
   bool automaticPageTurnActive = false;
+  bool showBookmarkMessage = false;
+  bool ignoreNextConfirmRelease = false;
   // Tracks whether this book is currently removed from Recent Books by the
   // removeReadBooksFromRecents feature (set at End-of-Book, cleared if paged back in).
   bool recentsEntryRemoved = false;
+  unsigned long bookmarkMessageTime = 0UL;
   // Set when the reader is left at end-of-book and SETTINGS.moveFinishedToReadFolder is on.
   // Consumed in onExit() to relocate the finished book into /Read/.
   bool pendingReadFolderMove = false;
@@ -59,6 +63,7 @@ class EpubReaderActivity final : public Activity {
   void applyOrientation(uint8_t orientation);
   void toggleAutoPageTurn(uint8_t selectedPageTurnOption);
   void pageTurn(bool isForwardTurn);
+  void addBookmark();
 
   // Footnote navigation
   void navigateToHref(const std::string& href, bool savePosition = false);
@@ -73,4 +78,5 @@ class EpubReaderActivity final : public Activity {
   void render(RenderLock&& lock) override;
   bool isReaderActivity() const override { return true; }
   ScreenshotInfo getScreenshotInfo() const override;
+  CrossPointPosition getCurrentPosition() const;
 };