feat: implement epub service, navigation service, and global error boundary with updated reader UI layouts

2026-04-25 16:16:36 +02:00
parent f3e94c4f42
commit 59074a05a0
23 changed files with 726 additions and 157 deletions
@@ -0,0 +1,15 @@
+namespace NexusReader.UI.Shared.Services;
+
+public interface IReaderNavigationService
+{
+    int CurrentChapterIndex { get; }
+    int TotalChapters { get; }
+    string ChapterTitle { get; }
+    
+    event Action OnNavigationChanged;
+    
+    void GoToChapter(int index);
+    void GoToNextChapter();
+    void GoToPreviousChapter();
+    void UpdateMetadata(int currentIndex, int totalChapters, string title);
+}
@@ -0,0 +1,47 @@
+namespace NexusReader.UI.Shared.Services;
+
+public class ReaderNavigationService : IReaderNavigationService
+{
+    public int CurrentChapterIndex { get; private set; } = 0;
+    public int TotalChapters { get; private set; } = 1;
+    public string ChapterTitle { get; private set; } = "Loading...";
+
+    public event Action? OnNavigationChanged;
+
+    public void GoToChapter(int index)
+    {
+        if (index < 0 || index >= TotalChapters) return;
+        
+        CurrentChapterIndex = index;
+        OnNavigationChanged?.Invoke();
+    }
+
+    public void GoToNextChapter()
+    {
+        if (CurrentChapterIndex < TotalChapters - 1)
+        {
+            GoToChapter(CurrentChapterIndex + 1);
+        }
+    }
+
+    public void GoToPreviousChapter()
+    {
+        if (CurrentChapterIndex > 0)
+        {
+            GoToChapter(CurrentChapterIndex - 1);
+        }
+    }
+
+    public void UpdateMetadata(int currentIndex, int totalChapters, string title)
+    {
+        bool changed = false;
+        if (CurrentChapterIndex != currentIndex) { CurrentChapterIndex = currentIndex; changed = true; }
+        if (TotalChapters != totalChapters) { TotalChapters = totalChapters; changed = true; }
+        if (ChapterTitle != title) { ChapterTitle = title; changed = true; }
+        
+        if (changed)
+        {
+            OnNavigationChanged?.Invoke();
+        }
+    }
+}