feat: add d/u shortcuts for half page navigation, closes #62 (#437)

2025-02-23 15:56:00 +01:00
parent 1d5b189185
commit 4c7b7881c8
3 changed files with 25 additions and 3 deletions
@@ -61,6 +61,22 @@ const useBookShortcuts = ({ sideBarBookKey, bookKeys }: UseBookShortcutsProps) =
    getView(sideBarBookKey)?.history.back();
  };

+  const goHalfPageDown = () => {
+    const view = getView(sideBarBookKey);
+    const viewSettings = getViewSettings(sideBarBookKey ?? '');
+    if (view && viewSettings && viewSettings.scrolled) {
+      view.next(view.renderer.size / 2);
+    }
+  };
+
+  const goHalfPageUp = () => {
+    const view = getView(sideBarBookKey);
+    const viewSettings = getViewSettings(sideBarBookKey ?? '');
+    if (view && viewSettings && viewSettings.scrolled) {
+      view.prev(view.renderer.size / 2);
+    }
+  };
+
  const goForward = () => {
    getView(sideBarBookKey)?.history.forward();
  };
@@ -123,6 +139,8 @@ const useBookShortcuts = ({ sideBarBookKey, bookKeys }: UseBookShortcutsProps) =
      onGoRight: goRight,
      onGoPrev: goPrev,
      onGoNext: goNext,
+      onGoHalfPageDown: goHalfPageDown,
+      onGoHalfPageUp: goHalfPageUp,
      onGoBack: goBack,
      onGoForward: goForward,
      onZoomIn: zoomIn,