Voltaire // New PgDn/Up functions with single page.

- When candidates take only one page, PgDn/PgUp functions like arrow keys.

Source/UI/CandidateUI/HorizontalCandidateController.swift

@@ -259,6 +259,10 @@ public class HorizontalCandidateController: CandidateController {
             return false
         }
 
+        if pageCount == 1 {
+            return highlightNextCandidate()
+        }
+
         if currentPage + 1 >= pageCount {
             currentPage = 0
         } else {
@@ -275,6 +279,10 @@ public class HorizontalCandidateController: CandidateController {
             return false
         }
 
+        if pageCount == 1 {
+            return highlightPreviousCandidate()
+        }
+
         if currentPage == 0 {
             currentPage = pageCount - 1
         } else {

Source/UI/CandidateUI/VerticalCandidateController.swift

@@ -265,6 +265,10 @@ public class VerticalCandidateController: CandidateController {
             return false
         }
 
+        if pageCount == 1 {
+            return highlightNextCandidate()
+        }
+
         if currentPage + 1 >= pageCount {
             currentPage = 0
         } else {
@@ -281,6 +285,10 @@ public class VerticalCandidateController: CandidateController {
             return false
         }
 
+        if pageCount == 1 {
+            return highlightPreviousCandidate()
+        }
+
         if currentPage == 0 {
             currentPage = pageCount - 1
         } else {