| 137 | } |
| 138 | |
| 139 | fn handle_pagination_input( |
| 140 | &self, |
| 141 | current_page: usize, |
| 142 | number_of_pages: usize, |
| 143 | ) -> PaginationInput { |
| 144 | loop { |
| 145 | if current_page < 2 { |
| 146 | println!("Enter 'n' for next page, or 'q' to quit:"); |
| 147 | } else if current_page == number_of_pages { |
| 148 | println!("'p' for previous page, or 'q' to quit:"); |
| 149 | } else { |
| 150 | println!("Enter 'n' for next page, 'p' for previous page, or 'q' to quit:"); |
| 151 | } |
| 152 | |
| 153 | std::io::Write::flush(&mut std::io::stdout()).expect("flush failed!"); |
| 154 | |
| 155 | let mut line = String::new(); |
| 156 | std::io::stdin() |
| 157 | .read_line(&mut line) |
| 158 | .expect("Failed to read input"); |
| 159 | |
| 160 | let input = line.trim(); |
| 161 | if input == "q" || input == "n" || input == "p" { |
| 162 | match input { |
| 163 | "n" => { |
| 164 | if current_page < number_of_pages { |
| 165 | return PaginationInput::NextPage; |
| 166 | } else { |
| 167 | println!("Already on the last page"); |
| 168 | continue; |
| 169 | } |
| 170 | } |
| 171 | "p" => { |
| 172 | if current_page > 1 { |
| 173 | return PaginationInput::PreviousPage; |
| 174 | } else { |
| 175 | println!("Already on the first page"); |
| 176 | continue; |
| 177 | } |
| 178 | } |
| 179 | "q" => return PaginationInput::Quit, |
| 180 | _ => unreachable!(), |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | println!("Invalid input"); |
| 185 | } |
| 186 | } |
| 187 | } |