php-school /
cli-menu
| Total Complexity | 88 |
| Total Lines | 601 |
| Duplicated Lines | 0 % |
| Changes | 6 | ||
| Bugs | 0 | Features | 0 |
Complex classes like CliMenuBuilder often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use CliMenuBuilder, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 29 | class CliMenuBuilder |
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| 30 | { |
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| 31 | /** |
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| 32 | * @var CliMenu |
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| 33 | */ |
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| 34 | private $menu; |
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| 35 | |||
| 36 | /** |
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| 37 | * @var string |
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| 38 | */ |
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| 39 | private $goBackButtonText = 'Go Back'; |
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| 40 | |||
| 41 | /** |
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| 42 | * @var string |
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| 43 | */ |
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| 44 | private $exitButtonText = 'Exit'; |
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| 45 | |||
| 46 | /** |
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| 47 | * @var MenuStyle |
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| 48 | */ |
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| 49 | private $style; |
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| 50 | |||
| 51 | /** |
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| 52 | * @var Terminal |
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| 53 | */ |
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| 54 | private $terminal; |
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| 55 | |||
| 56 | /** |
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| 57 | * @var bool |
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| 58 | */ |
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| 59 | private $disableDefaultItems = false; |
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| 60 | |||
| 61 | /** |
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| 62 | * @var bool |
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| 63 | */ |
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| 64 | private $disabled = false; |
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| 65 | |||
| 66 | /** |
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| 67 | * Whether or not to auto create keyboard shortcuts for items |
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| 68 | * when they contain square brackets. Eg: [M]y item |
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| 69 | * |
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| 70 | * @var bool |
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| 71 | */ |
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| 72 | private $autoShortcuts = false; |
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| 73 | |||
| 74 | /** |
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| 75 | * Regex to auto match for shortcuts defaults to looking |
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| 76 | * for a single character encased in square brackets |
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| 77 | * |
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| 78 | * @var string |
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| 79 | */ |
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| 80 | private $autoShortcutsRegex = '/\[(.)\]/'; |
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| 81 | |||
| 82 | /** |
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| 83 | * @var bool |
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| 84 | */ |
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| 85 | private $subMenu = false; |
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| 86 | |||
| 87 | public function __construct(Terminal $terminal = null) |
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| 88 | { |
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| 89 | $this->terminal = $terminal ?? TerminalFactory::fromSystem(); |
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| 90 | $this->style = new MenuStyle($this->terminal); |
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| 91 | $this->menu = new CliMenu(null, [], $this->terminal, $this->style); |
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| 92 | } |
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| 93 | |||
| 94 | public static function newSubMenu(Terminal $terminal) : self |
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| 95 | { |
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| 96 | $instance = new self($terminal); |
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| 97 | $instance->subMenu = true; |
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| 98 | |||
| 99 | return $instance; |
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| 100 | } |
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| 101 | |||
| 102 | public function setTitle(string $title) : self |
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| 103 | { |
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| 104 | $this->menu->setTitle($title); |
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| 105 | |||
| 106 | return $this; |
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| 107 | } |
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| 108 | |||
| 109 | public function addMenuItem(MenuItemInterface $item) : self |
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| 110 | { |
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| 111 | $this->menu->addItem($item); |
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| 112 | |||
| 113 | $this->processItemShortcut($item); |
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| 114 | |||
| 115 | return $this; |
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| 116 | } |
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| 117 | |||
| 118 | public function addItem( |
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| 119 | string $text, |
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| 120 | callable $itemCallable, |
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| 121 | bool $showItemExtra = false, |
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| 122 | bool $disabled = false |
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| 123 | ) : self { |
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| 124 | $this->addMenuItem(new SelectableItem($text, $itemCallable, $showItemExtra, $disabled)); |
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| 125 | |||
| 126 | return $this; |
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| 127 | } |
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| 128 | |||
| 129 | public function addItems(array $items) : self |
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| 130 | { |
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| 131 | foreach ($items as $item) { |
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| 132 | $this->addItem(...$item); |
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| 133 | } |
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| 134 | |||
| 135 | return $this; |
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| 136 | } |
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| 137 | |||
| 138 | public function addCheckboxItem( |
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| 139 | string $text, |
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| 140 | callable $itemCallable, |
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| 141 | bool $showItemExtra = false, |
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| 142 | bool $disabled = false |
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| 143 | ) : self { |
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| 144 | $this->addMenuItem(new CheckboxItem($text, $itemCallable, $showItemExtra, $disabled)); |
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| 145 | |||
| 146 | return $this; |
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| 147 | } |
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| 148 | |||
| 149 | public function addRadioItem( |
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| 150 | string $text, |
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| 151 | callable $itemCallable, |
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| 152 | bool $showItemExtra = false, |
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| 153 | bool $disabled = false |
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| 154 | ) : self { |
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| 155 | $this->addMenuItem(new RadioItem($text, $itemCallable, $showItemExtra, $disabled)); |
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| 156 | |||
| 157 | return $this; |
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| 158 | } |
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| 159 | |||
| 160 | public function addStaticItem(string $text) : self |
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| 161 | { |
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| 162 | $this->addMenuItem(new StaticItem($text)); |
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| 163 | |||
| 164 | return $this; |
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| 165 | } |
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| 166 | |||
| 167 | public function addLineBreak(string $breakChar = ' ', int $lines = 1) : self |
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| 168 | { |
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| 169 | $this->addMenuItem(new LineBreakItem($breakChar, $lines)); |
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| 170 | |||
| 171 | return $this; |
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| 172 | } |
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| 173 | |||
| 174 | public function addAsciiArt(string $art, string $position = AsciiArtItem::POSITION_CENTER, string $alt = '') : self |
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| 175 | { |
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| 176 | $this->addMenuItem(new AsciiArtItem($art, $position, $alt)); |
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| 177 | |||
| 178 | return $this; |
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| 179 | } |
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| 180 | |||
| 181 | public function addSubMenu(string $text, \Closure $callback) : self |
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| 182 | { |
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| 183 | $builder = self::newSubMenu($this->terminal); |
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| 184 | |||
| 185 | if ($this->autoShortcuts) { |
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| 186 | $builder->enableAutoShortcuts($this->autoShortcutsRegex); |
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| 187 | } |
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| 188 | |||
| 189 | $callback($builder); |
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| 190 | |||
| 191 | $menu = $builder->build(); |
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| 192 | $menu->setParent($this->menu); |
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| 193 | |||
| 194 | $this->menu->addItem($item = new MenuMenuItem( |
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| 195 | $text, |
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| 196 | $menu, |
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| 197 | $builder->isMenuDisabled() |
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| 198 | )); |
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| 199 | |||
| 200 | $this->processItemShortcut($item); |
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| 201 | |||
| 202 | return $this; |
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| 203 | } |
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| 204 | |||
| 205 | public function addSubMenuFromBuilder(string $text, CliMenuBuilder $builder) : self |
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| 206 | { |
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| 207 | $menu = $builder->build(); |
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| 208 | $menu->setParent($this->menu); |
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| 209 | |||
| 210 | $this->menu->addItem($item = new MenuMenuItem( |
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| 211 | $text, |
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| 212 | $menu, |
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| 213 | $builder->isMenuDisabled() |
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| 214 | )); |
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| 215 | |||
| 216 | $this->processItemShortcut($item); |
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| 217 | |||
| 218 | return $this; |
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| 219 | } |
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| 220 | |||
| 221 | public function enableAutoShortcuts(string $regex = null) : self |
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| 222 | { |
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| 223 | $this->autoShortcuts = true; |
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| 224 | |||
| 225 | if (null !== $regex) { |
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| 226 | $this->autoShortcutsRegex = $regex; |
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| 227 | } |
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| 228 | |||
| 229 | return $this; |
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| 230 | } |
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| 231 | |||
| 232 | private function extractShortcut(string $title) : ?string |
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| 233 | { |
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| 234 | preg_match($this->autoShortcutsRegex, $title, $match); |
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| 235 | |||
| 236 | if (!isset($match[1])) { |
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| 237 | return null; |
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| 238 | } |
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| 239 | |||
| 240 | if (mb_strlen($match[1]) > 1) { |
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| 241 | throw InvalidShortcutException::fromShortcut($match[1]); |
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| 242 | } |
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| 243 | |||
| 244 | return isset($match[1]) ? strtolower($match[1]) : null; |
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| 245 | } |
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| 246 | |||
| 247 | private function processItemShortcut(MenuItemInterface $item) : void |
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| 248 | { |
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| 249 | $this->processIndividualShortcut($item, function (CliMenu $menu) use ($item) { |
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| 250 | $menu->executeAsSelected($item); |
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| 251 | }); |
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| 252 | } |
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| 253 | |||
| 254 | private function processSplitItemShortcuts(SplitItem $splitItem) : void |
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| 255 | { |
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| 256 | foreach ($splitItem->getItems() as $item) { |
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| 257 | $this->processIndividualShortcut($item, function (CliMenu $menu) use ($splitItem, $item) { |
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| 258 | $current = $splitItem->getSelectedItemIndex(); |
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| 259 | |||
| 260 | $splitItem->setSelectedItemIndex( |
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| 261 | array_search($item, $splitItem->getItems(), true) |
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| 262 | ); |
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| 263 | |||
| 264 | $menu->executeAsSelected($splitItem); |
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| 265 | |||
| 266 | if ($current !== null) { |
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| 267 | $splitItem->setSelectedItemIndex($current); |
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| 268 | } |
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| 269 | }); |
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| 270 | } |
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| 271 | } |
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| 272 | |||
| 273 | private function processIndividualShortcut(MenuItemInterface $item, callable $callback) : void |
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| 274 | { |
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| 275 | if (!$this->autoShortcuts) { |
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| 276 | return; |
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| 277 | } |
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| 278 | |||
| 279 | if ($shortcut = $this->extractShortcut($item->getText())) { |
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| 280 | $this->menu->addCustomControlMapping( |
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| 281 | $shortcut, |
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| 282 | $callback |
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| 283 | ); |
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| 284 | } |
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| 285 | } |
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| 286 | |||
| 287 | public function addSplitItem(\Closure $callback) : self |
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| 288 | { |
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| 289 | $builder = new SplitItemBuilder($this->menu); |
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| 290 | |||
| 291 | if ($this->autoShortcuts) { |
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| 292 | $builder->enableAutoShortcuts($this->autoShortcutsRegex); |
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| 293 | } |
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| 294 | |||
| 295 | $callback($builder); |
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| 296 | |||
| 297 | $this->menu->addItem($splitItem = $builder->build()); |
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| 298 | |||
| 299 | $this->processSplitItemShortcuts($splitItem); |
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| 300 | |||
| 301 | return $this; |
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| 302 | } |
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| 303 | |||
| 304 | /** |
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| 305 | * Disable a submenu |
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| 306 | * |
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| 307 | * @throws \InvalidArgumentException |
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| 308 | */ |
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| 309 | public function disableMenu() : self |
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| 310 | { |
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| 311 | if (!$this->subMenu) { |
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| 312 | throw new \InvalidArgumentException( |
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| 313 | 'You can\'t disable the root menu' |
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| 314 | ); |
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| 315 | } |
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| 316 | |||
| 317 | $this->disabled = true; |
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| 318 | |||
| 319 | return $this; |
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| 320 | } |
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| 321 | |||
| 322 | public function isMenuDisabled() : bool |
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| 323 | { |
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| 324 | return $this->disabled; |
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| 325 | } |
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| 326 | |||
| 327 | public function setGoBackButtonText(string $goBackButtonTest) : self |
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| 328 | { |
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| 329 | $this->goBackButtonText = $goBackButtonTest; |
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| 330 | |||
| 331 | return $this; |
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| 332 | } |
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| 333 | |||
| 334 | public function setExitButtonText(string $exitButtonText) : self |
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| 335 | { |
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| 336 | $this->exitButtonText = $exitButtonText; |
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| 337 | |||
| 338 | return $this; |
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| 339 | } |
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| 340 | |||
| 341 | public function setBackgroundColour(string $colour, string $fallback = null) : self |
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| 342 | { |
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| 343 | $this->style->setBg($colour, $fallback); |
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| 344 | |||
| 345 | return $this; |
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| 346 | } |
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| 347 | |||
| 348 | public function setForegroundColour(string $colour, string $fallback = null) : self |
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| 349 | { |
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| 350 | $this->style->setFg($colour, $fallback); |
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| 351 | |||
| 352 | return $this; |
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| 353 | } |
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| 354 | |||
| 355 | public function setWidth(int $width) : self |
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| 356 | { |
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| 357 | $this->style->setWidth($width); |
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| 358 | |||
| 359 | return $this; |
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| 360 | } |
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| 361 | |||
| 362 | public function setPadding(int $topBottom, int $leftRight = null) : self |
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| 363 | { |
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| 364 | $this->style->setPadding($topBottom, $leftRight); |
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| 365 | |||
| 366 | return $this; |
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| 367 | } |
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| 368 | |||
| 369 | public function setPaddingTopBottom(int $topBottom) : self |
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| 370 | { |
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| 371 | $this->style->setPaddingTopBottom($topBottom); |
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| 372 | |||
| 373 | return $this; |
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| 374 | } |
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| 375 | |||
| 376 | public function setPaddingLeftRight(int $leftRight) : self |
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| 377 | { |
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| 378 | $this->style->setPaddingLeftRight($leftRight); |
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| 379 | |||
| 380 | return $this; |
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| 381 | } |
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| 382 | |||
| 383 | public function setMarginAuto() : self |
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| 384 | { |
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| 385 | $this->style->setMarginAuto(); |
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| 386 | |||
| 387 | return $this; |
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| 388 | } |
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| 389 | |||
| 390 | public function setMargin(int $margin) : self |
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| 391 | { |
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| 392 | $this->style->setMargin($margin); |
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| 393 | |||
| 394 | return $this; |
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| 395 | } |
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| 396 | |||
| 397 | public function setItemExtra(string $extra) : self |
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| 398 | { |
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| 399 | $this->style->setItemExtra($extra); |
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| 400 | $this->menu->getSelectableStyle()->setItemExtra($extra); |
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| 401 | |||
| 402 | // if we customise item extra, it means we most likely want to display it |
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| 403 | $this->displayExtra(); |
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| 404 | |||
| 405 | return $this; |
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| 406 | } |
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| 407 | |||
| 408 | public function setTitleSeparator(string $separator) : self |
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| 413 | } |
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| 414 | |||
| 415 | public function setBorder(int $top, $right = null, $bottom = null, $left = null, string $colour = null) : self |
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| 416 | { |
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| 417 | $this->style->setBorder($top, $right, $bottom, $left, $colour); |
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| 418 | |||
| 419 | return $this; |
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| 420 | } |
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| 421 | |||
| 422 | public function setBorderTopWidth(int $width) : self |
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| 423 | { |
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| 424 | $this->style->setBorderTopWidth($width); |
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| 425 | |||
| 426 | return $this; |
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| 427 | } |
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| 428 | |||
| 429 | public function setBorderRightWidth(int $width) : self |
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| 434 | } |
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| 435 | |||
| 436 | public function setBorderBottomWidth(int $width) : self |
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| 437 | { |
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| 438 | $this->style->setBorderBottomWidth($width); |
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| 439 | |||
| 440 | return $this; |
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| 441 | } |
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| 442 | |||
| 443 | public function setBorderLeftWidth(int $width) : self |
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| 444 | { |
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| 445 | $this->style->setBorderLeftWidth($width); |
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| 446 | |||
| 447 | return $this; |
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| 448 | } |
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| 449 | |||
| 450 | public function setBorderColour(string $colour, $fallback = null) : self |
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| 455 | } |
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| 456 | |||
| 457 | public function getStyle() : MenuStyle |
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| 458 | { |
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| 459 | return $this->style; |
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| 460 | } |
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| 461 | |||
| 462 | public function getTerminal() : Terminal |
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| 463 | { |
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| 464 | return $this->terminal; |
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| 465 | } |
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| 466 | |||
| 467 | private function getDefaultItems() : array |
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| 468 | { |
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| 469 | $actions = []; |
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| 470 | if ($this->subMenu) { |
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| 471 | $actions[] = new SelectableItem($this->goBackButtonText, new GoBackAction); |
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| 472 | } |
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| 473 | |||
| 474 | $actions[] = new SelectableItem($this->exitButtonText, new ExitAction); |
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| 475 | return $actions; |
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| 476 | } |
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| 477 | |||
| 478 | public function disableDefaultItems() : self |
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| 483 | } |
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| 484 | |||
| 485 | public function displayExtra() : self |
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| 486 | { |
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| 487 | $this->style->setDisplaysExtra(true); |
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| 488 | $this->menu->getSelectableStyle()->setDisplaysExtra(true); |
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| 489 | |||
| 490 | return $this; |
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| 491 | } |
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| 492 | |||
| 493 | private function itemsHaveExtra(array $items) : bool |
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| 494 | { |
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| 495 | return !empty(array_filter($items, function (MenuItemInterface $item) { |
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| 496 | return $item->showsItemExtra(); |
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| 497 | })); |
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| 498 | } |
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| 499 | |||
| 500 | public function build() : CliMenu |
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| 501 | { |
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| 502 | if (!$this->disableDefaultItems) { |
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| 503 | $this->menu->addItems($this->getDefaultItems()); |
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| 504 | } |
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| 505 | |||
| 506 | if (!$this->style->getDisplaysExtra()) { |
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| 507 | $this->style->setDisplaysExtra($this->itemsHaveExtra($this->menu->getItems())); |
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| 508 | } |
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| 509 | |||
| 510 | if (!$this->subMenu) { |
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| 511 | $this->propagateStyles($this->menu); |
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| 512 | } |
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| 513 | |||
| 514 | return $this->menu; |
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| 515 | } |
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| 516 | |||
| 517 | public function getCheckboxStyle() : CheckboxStyle |
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| 518 | { |
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| 519 | return $this->menu->getCheckboxStyle(); |
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| 520 | } |
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| 521 | |||
| 522 | public function setCheckboxStyle(CheckboxStyle $style) : self |
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| 523 | { |
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| 524 | $this->menu->setCheckboxStyle($style); |
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| 525 | |||
| 526 | return $this; |
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| 527 | } |
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| 528 | |||
| 529 | public function modifyCheckboxStyle(callable $itemCallable) : self |
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| 530 | { |
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| 531 | $itemCallable($this->menu->getCheckboxStyle()); |
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| 532 | |||
| 533 | return $this; |
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| 534 | } |
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| 535 | |||
| 536 | public function getRadioStyle() : RadioStyle |
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| 537 | { |
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| 538 | return $this->menu->getRadioStyle(); |
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| 539 | } |
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| 540 | |||
| 541 | public function setRadioStyle(RadioStyle $style) : self |
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| 542 | { |
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| 543 | $this->menu->setRadioStyle($style); |
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| 544 | |||
| 545 | return $this; |
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| 546 | } |
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| 547 | |||
| 548 | public function modifyRadioStyle(callable $itemCallable) : self |
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| 549 | { |
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| 550 | $itemCallable($this->menu->getRadioStyle()); |
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| 551 | |||
| 552 | return $this; |
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| 553 | } |
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| 554 | |||
| 555 | public function getSelectableStyle() : SelectableStyle |
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| 556 | { |
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| 557 | return $this->menu->getSelectableStyle(); |
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| 558 | } |
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| 559 | |||
| 560 | public function setSelectableStyle(SelectableStyle $style) : self |
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| 561 | { |
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| 562 | $this->menu->setSelectableStyle($style); |
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| 563 | |||
| 564 | return $this; |
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| 565 | } |
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| 566 | |||
| 567 | public function modifySelectableStyle(callable $itemCallable) : self |
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| 572 | } |
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| 573 | |||
| 574 | /** |
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| 575 | * Pass styles from current menu to sub-menu |
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| 576 | * only if sub-menu style has not be customized |
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| 577 | */ |
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| 578 | private function propagateStyles(CliMenu $menu, array $items = []) |
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| 579 | { |
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| 580 | $currentItems = !empty($items) ? $items : $menu->getItems(); |
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| 630 | } |
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| 631 | } |
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| 632 | } |
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| 633 | } |
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| 634 |
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