clients/view: Do not browse outside document range

diff --git a/clients/view.c b/clients/view.c
index 88c59ad..9e19a5a 100644 (file)
--- a/clients/view.c
+++ b/clients/view.c
@@ -127,14 +127,20 @@ key_handler(struct window *window, struct input *input, uint32_t time,
        case KEY_PAGEDOWN:
                if (!state)
                        break;
-               view->page++;
+
+               if (view->page + 1 < poppler_document_get_n_pages(view->document))
+                        view->page++;
+
                window_schedule_redraw(view->window);
                break;
        case KEY_BACKSPACE:
        case KEY_PAGEUP:
                if (!state)
                        break;
-               view->page--;
+
+               if(view->page > 0)
+                        view->page--;
+
                window_schedule_redraw(view->window);
                break;
        default: