Inputtext: don't allow the cursor to move within a hint (#7687)

Same as 17e6049e but for "hold".

frontend/ui/widget/inputtext.lua

@@ -120,12 +120,13 @@ if Device:isTouchDevice() or Device:hasDPad() then
             if self.parent.onSwitchFocus then
                 self.parent:onSwitchFocus(self)
             end
-            if #self.charlist == 0 then return end -- Avoid cursor moving within a hint.
-            local textwidget_offset = self.margin + self.bordersize + self.padding
-            local x = ges.pos.x - self._frame_textwidget.dimen.x - textwidget_offset
-            local y = ges.pos.y - self._frame_textwidget.dimen.y - textwidget_offset
-            self.text_widget:moveCursorToXY(x, y, true) -- restrict_to_view=true
-            self.charpos, self.top_line_num = self.text_widget:getCharPos()
+            if #self.charlist > 0 then -- Avoid cursor moving within a hint.
+                local textwidget_offset = self.margin + self.bordersize + self.padding
+                local x = ges.pos.x - self._frame_textwidget.dimen.x - textwidget_offset
+                local y = ges.pos.y - self._frame_textwidget.dimen.y - textwidget_offset
+                self.text_widget:moveCursorToXY(x, y, true) -- restrict_to_view=true
+                self.charpos, self.top_line_num = self.text_widget:getCharPos()
+            end
             return true
         end
 
@@ -133,11 +134,13 @@ if Device:isTouchDevice() or Device:hasDPad() then
             if self.parent.onSwitchFocus then
                 self.parent:onSwitchFocus(self)
             end
-            local textwidget_offset = self.margin + self.bordersize + self.padding
-            local x = ges.pos.x - self._frame_textwidget.dimen.x - textwidget_offset
-            local y = ges.pos.y - self._frame_textwidget.dimen.y - textwidget_offset
-            self.text_widget:moveCursorToXY(x, y, true) -- restrict_to_view=true
-            self.charpos, self.top_line_num = self.text_widget:getCharPos()
+            if #self.charlist > 0 then -- Avoid cursor moving within a hint.
+                local textwidget_offset = self.margin + self.bordersize + self.padding
+                local x = ges.pos.x - self._frame_textwidget.dimen.x - textwidget_offset
+                local y = ges.pos.y - self._frame_textwidget.dimen.y - textwidget_offset
+                self.text_widget:moveCursorToXY(x, y, true) -- restrict_to_view=true
+                self.charpos, self.top_line_num = self.text_widget:getCharPos()
+            end
             if Device:hasClipboard() and Device.input.hasClipboardText() then
                 self:addChars(Device.input.getClipboardText())
             end