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| 1 | <?php |
| 2 | |
| 3 | namespace GrowthExperiments\DashboardModule; |
| 4 | |
| 5 | use IContextSource; |
| 6 | use InvalidArgumentException; |
| 7 | use MediaWiki\Config\Config; |
| 8 | use MediaWiki\Html\Html; |
| 9 | use MediaWiki\SpecialPage\SpecialPage; |
| 10 | use MediaWiki\User\User; |
| 11 | use Message; |
| 12 | use MessageSpecifier; |
| 13 | use OOUI\IconWidget; |
| 14 | |
| 15 | abstract class DashboardModule implements IDashboardModule { |
| 16 | /** |
| 17 | * Override this to change base CSS class used with the elements |
| 18 | */ |
| 19 | protected const BASE_CSS_CLASS = 'growthexperiments-dashboard-module'; |
| 20 | |
| 21 | /** |
| 22 | * Modes that are supported by this module.Subclasses that don't support certain modes should |
| 23 | * override this to list only the modes they support. For more granular control, override |
| 24 | * supports() instead. |
| 25 | * @var string[] |
| 26 | */ |
| 27 | protected static $supportedModes = [ |
| 28 | self::RENDER_DESKTOP, |
| 29 | self::RENDER_MOBILE_SUMMARY, |
| 30 | self::RENDER_MOBILE_DETAILS |
| 31 | ]; |
| 32 | |
| 33 | /** @var IContextSource */ |
| 34 | private $ctx; |
| 35 | |
| 36 | /** @var string Name of the module */ |
| 37 | protected $name; |
| 38 | |
| 39 | /** @var string Rendering mode (one of RENDER_* constants) */ |
| 40 | private $mode; |
| 41 | |
| 42 | /** |
| 43 | * @param string $name |
| 44 | * @param IContextSource $ctx |
| 45 | */ |
| 46 | public function __construct( |
| 47 | $name, |
| 48 | IContextSource $ctx |
| 49 | ) { |
| 50 | $this->name = $name; |
| 51 | $this->ctx = $ctx; |
| 52 | } |
| 53 | |
| 54 | /** |
| 55 | * @return IContextSource |
| 56 | */ |
| 57 | final protected function getContext(): IContextSource { |
| 58 | return $this->ctx; |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Get current user |
| 63 | * |
| 64 | * Short for $this->getContext()->getUser(). |
| 65 | * |
| 66 | * @return User |
| 67 | */ |
| 68 | final protected function getUser(): User { |
| 69 | return $this->getContext()->getUser(); |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * Shortcut to get main config object |
| 74 | * |
| 75 | * Short for $this->getContext()->getConfig(). |
| 76 | * |
| 77 | * @return Config |
| 78 | */ |
| 79 | final protected function getConfig(): Config { |
| 80 | return $this->getContext()->getConfig(); |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * @return string Rendering mode (one of RENDER_* constants) |
| 85 | */ |
| 86 | final protected function getMode(): string { |
| 87 | return $this->mode; |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * @return string |
| 92 | */ |
| 93 | final protected function getName(): string { |
| 94 | return $this->name; |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * @param string $mode Rendering mode (one of RENDER_* constants) |
| 99 | */ |
| 100 | protected function setMode( string $mode ) { |
| 101 | $this->mode = $mode; |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * Whether the module can be rendered or not. |
| 106 | * When this returns false, callers should never attempt to render the module. |
| 107 | * @return bool |
| 108 | */ |
| 109 | protected function canRender() { |
| 110 | return true; |
| 111 | } |
| 112 | |
| 113 | /** |
| 114 | * Whether the module is supposed to be present on the homepage. |
| 115 | * When canRender() is true but shouldRender() is false, the module should not be displayed, |
| 116 | * but callers can choose to pre-render the module to display it dynamically without delay |
| 117 | * when it becames enabled. |
| 118 | * @return bool |
| 119 | */ |
| 120 | protected function shouldRender() { |
| 121 | return $this->canRender(); |
| 122 | } |
| 123 | |
| 124 | /** |
| 125 | * Override this function to provide module styles that need to be |
| 126 | * loaded in the <head> for this module. |
| 127 | * |
| 128 | * @return string[] Name of the module(s) to load |
| 129 | */ |
| 130 | protected function getModuleStyles() { |
| 131 | return []; |
| 132 | } |
| 133 | |
| 134 | /** |
| 135 | * Override this function to provide modules that need to be |
| 136 | * loaded for this module. |
| 137 | * |
| 138 | * @return string[] Name of the module(s) to load |
| 139 | */ |
| 140 | protected function getModules() { |
| 141 | return []; |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * Override this function to add additional CSS classes to the top-level |
| 146 | * <div> of this module. |
| 147 | * |
| 148 | * @return string[] Additional CSS classes |
| 149 | */ |
| 150 | protected function getCssClasses() { |
| 151 | return []; |
| 152 | } |
| 153 | |
| 154 | /** |
| 155 | * @inheritDoc |
| 156 | */ |
| 157 | public function supports( $mode ) { |
| 158 | return in_array( $mode, static::$supportedModes ); |
| 159 | } |
| 160 | |
| 161 | /** |
| 162 | * @inheritDoc |
| 163 | */ |
| 164 | public function getJsData( $mode ) { |
| 165 | return []; |
| 166 | } |
| 167 | |
| 168 | /** |
| 169 | * Override this function to provide JS config vars needed by this module. |
| 170 | * |
| 171 | * @return array |
| 172 | */ |
| 173 | protected function getJsConfigVars() { |
| 174 | return []; |
| 175 | } |
| 176 | |
| 177 | protected function outputDependencies() { |
| 178 | $out = $this->getContext()->getOutput(); |
| 179 | $out->addModuleStyles( $this->getModuleStyles() ); |
| 180 | $out->addModules( $this->getModules() ); |
| 181 | $out->addJsConfigVars( $this->getJsConfigVars() ); |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * @inheritDoc |
| 186 | */ |
| 187 | public function render( $mode ) { |
| 188 | if ( !$this->supports( $mode ) ) { |
| 189 | return ''; |
| 190 | } |
| 191 | $this->setMode( $mode ); |
| 192 | if ( !$this->shouldRender() ) { |
| 193 | return ''; |
| 194 | } |
| 195 | |
| 196 | $this->outputDependencies(); |
| 197 | return $this->getHtml(); |
| 198 | } |
| 199 | |
| 200 | /** |
| 201 | * Get the module HTML for current mode |
| 202 | * |
| 203 | * @return string |
| 204 | */ |
| 205 | protected function getHtml() { |
| 206 | if ( $this->mode === self::RENDER_DESKTOP ) { |
| 207 | $html = $this->renderDesktop(); |
| 208 | } elseif ( $this->mode === self::RENDER_MOBILE_SUMMARY ) { |
| 209 | $html = $this->renderMobileSummary(); |
| 210 | } elseif ( $this->mode === self::RENDER_MOBILE_DETAILS ) { |
| 211 | $html = $this->renderMobileDetails(); |
| 212 | } else { |
| 213 | throw new InvalidArgumentException( 'Invalid rendering mode: ' . $this->mode ); |
| 214 | } |
| 215 | return $html; |
| 216 | } |
| 217 | |
| 218 | /** |
| 219 | * @param string ...$sections |
| 220 | * @return string |
| 221 | */ |
| 222 | protected function buildModuleWrapper( ...$sections ) { |
| 223 | return Html::rawElement( |
| 224 | 'div', |
| 225 | [ |
| 226 | 'class' => array_merge( [ |
| 227 | static::BASE_CSS_CLASS, |
| 228 | static::BASE_CSS_CLASS . '-' . $this->name, |
| 229 | static::BASE_CSS_CLASS . '-' . $this->getMode() |
| 230 | ], $this->getCssClasses() ), |
| 231 | 'data-module-name' => $this->name, |
| 232 | 'data-mode' => $this->getMode() |
| 233 | ], |
| 234 | implode( "\n", $sections ) |
| 235 | ); |
| 236 | } |
| 237 | |
| 238 | /** |
| 239 | * Build a module section. |
| 240 | * |
| 241 | * $content is HTML, do not pass plain text. Use ->escaped() or ->parse() for messages. |
| 242 | * |
| 243 | * @param string $name Name of the section, used to generate a class |
| 244 | * @param string $content HTML content of the section |
| 245 | * @param string $tag HTML tag to use for the section |
| 246 | * @return string |
| 247 | */ |
| 248 | protected function buildSection( $name, $content, $tag = 'div' ) { |
| 249 | return $content ? Html::rawElement( |
| 250 | $tag, |
| 251 | [ |
| 252 | 'class' => [ |
| 253 | static::BASE_CSS_CLASS . '-section', |
| 254 | static::BASE_CSS_CLASS . '-section-' . $name, |
| 255 | static::BASE_CSS_CLASS . '-' . $name |
| 256 | ] |
| 257 | ], |
| 258 | $content |
| 259 | ) : ''; |
| 260 | } |
| 261 | |
| 262 | /** |
| 263 | * @return string HTML rendering for desktop. |
| 264 | */ |
| 265 | protected function renderDesktop() { |
| 266 | return $this->buildModuleWrapper( |
| 267 | $this->buildSection( 'header', $this->getHeader(), $this->getHeaderTag() ), |
| 268 | $this->buildSection( 'subheader', $this->getSubheader(), $this->getSubheaderTag() ), |
| 269 | $this->buildSection( 'body', $this->getBody() ), |
| 270 | $this->buildSection( 'footer', $this->getFooter() ) |
| 271 | ); |
| 272 | } |
| 273 | |
| 274 | /** |
| 275 | * @return string HTML rendering for mobile summary. |
| 276 | */ |
| 277 | protected function renderMobileSummary() { |
| 278 | return $this->buildModuleWrapper( |
| 279 | $this->buildSection( 'header', $this->getMobileSummaryHeader(), $this->getHeaderTag() ), |
| 280 | $this->buildSection( 'body', $this->getMobileSummaryBody() ) |
| 281 | ); |
| 282 | } |
| 283 | |
| 284 | /** |
| 285 | * @return string HTML rendering for mobile details. |
| 286 | */ |
| 287 | protected function renderMobileDetails() { |
| 288 | return $this->buildModuleWrapper( |
| 289 | $this->buildSection( 'header', $this->getMobileDetailsHeader(), $this->getHeaderTag() ), |
| 290 | $this->buildSection( 'subheader', $this->getSubheader(), $this->getSubheaderTag() ), |
| 291 | $this->buildSection( 'body', $this->getBody() ), |
| 292 | $this->buildSection( 'footer', $this->getFooter() ) |
| 293 | ); |
| 294 | } |
| 295 | |
| 296 | /** |
| 297 | * @return string HTML element containing the header text. |
| 298 | */ |
| 299 | protected function getHeaderTextElement() { |
| 300 | return Html::element( |
| 301 | 'div', |
| 302 | [ 'class' => static::BASE_CSS_CLASS . '-header-text' ], |
| 303 | $this->getHeaderText() |
| 304 | ); |
| 305 | } |
| 306 | |
| 307 | /** |
| 308 | * Override this function to provide the header text |
| 309 | * |
| 310 | * @return string |
| 311 | */ |
| 312 | abstract protected function getHeaderText(); |
| 313 | |
| 314 | /** |
| 315 | * Override this function to change the default header tag. |
| 316 | * |
| 317 | * @return string Tag to use with the header, eg. h2, h3, h4, ... |
| 318 | */ |
| 319 | protected function getHeaderTag() { |
| 320 | return 'h2'; |
| 321 | } |
| 322 | |
| 323 | /** |
| 324 | * Implement this function to provide the module header. |
| 325 | * |
| 326 | * @return string HTML content of the header. Will be wrapped in a section. |
| 327 | */ |
| 328 | protected function getHeader() { |
| 329 | $html = ''; |
| 330 | if ( $this->shouldHeaderIncludeIcon() ) { |
| 331 | $html .= $this->getHeaderIcon( |
| 332 | $this->getHeaderIconName(), |
| 333 | $this->shouldInvertHeaderIcon() |
| 334 | ); |
| 335 | } |
| 336 | $html .= $this->getHeaderTextElement(); |
| 337 | return $html; |
| 338 | } |
| 339 | |
| 340 | /** |
| 341 | * Implement this function to provide the module body. |
| 342 | * |
| 343 | * @return string HTML content of the body |
| 344 | */ |
| 345 | abstract protected function getBody(); |
| 346 | |
| 347 | /** |
| 348 | * @return string HTML string to be used as header of the mobile summary. |
| 349 | */ |
| 350 | protected function getMobileSummaryHeader() { |
| 351 | return $this->getHeaderTextElement() . $this->getNavIcon(); |
| 352 | } |
| 353 | |
| 354 | /** |
| 355 | * @return string HTML string to be used as header of the mobile details. |
| 356 | */ |
| 357 | protected function getMobileDetailsHeader() { |
| 358 | $icon = $this->getBackIcon(); |
| 359 | $text = $this->getHeaderTextElement(); |
| 360 | return $icon . $text; |
| 361 | } |
| 362 | |
| 363 | private function getBackIcon() { |
| 364 | return Html::rawElement( |
| 365 | 'a', |
| 366 | [ |
| 367 | 'href' => SpecialPage::getTitleFor( 'Homepage' )->getLinkURL(), |
| 368 | ], |
| 369 | new IconWidget( [ |
| 370 | 'icon' => 'arrowPrevious', |
| 371 | 'classes' => [ static::BASE_CSS_CLASS . '-header-back-icon' ], |
| 372 | ] ) |
| 373 | ); |
| 374 | } |
| 375 | |
| 376 | /** |
| 377 | * @return IconWidget The navigation icon. |
| 378 | */ |
| 379 | protected function getNavIcon() { |
| 380 | return new IconWidget( [ |
| 381 | 'icon' => 'arrowNext', |
| 382 | 'classes' => [ static::BASE_CSS_CLASS . '-header-nav-icon' ], |
| 383 | ] ); |
| 384 | } |
| 385 | |
| 386 | /** |
| 387 | * Implement this function to provide the module body |
| 388 | * when rendered as a mobile summary. |
| 389 | * |
| 390 | * @return string HTML content of the body |
| 391 | */ |
| 392 | abstract protected function getMobileSummaryBody(); |
| 393 | |
| 394 | /** |
| 395 | * Provide optional subheader for the module |
| 396 | * |
| 397 | * @return string HTML content of the subheader |
| 398 | */ |
| 399 | protected function getSubheader() { |
| 400 | return $this->getSubheaderTextElement(); |
| 401 | } |
| 402 | |
| 403 | /** |
| 404 | * Override this function to provide an optional subheader for the module |
| 405 | * |
| 406 | * @return string Text content of the subheader |
| 407 | */ |
| 408 | protected function getSubheaderText() { |
| 409 | return ''; |
| 410 | } |
| 411 | |
| 412 | /** |
| 413 | * @return string HTML element containing the header text. |
| 414 | */ |
| 415 | protected function getSubheaderTextElement() { |
| 416 | $text = $this->getSubheaderText(); |
| 417 | return $text ? Html::element( |
| 418 | 'div', |
| 419 | [ 'class' => static::BASE_CSS_CLASS . '-subheader-text' ], |
| 420 | $text |
| 421 | ) : ''; |
| 422 | } |
| 423 | |
| 424 | /** |
| 425 | * Override this function to change the default subheader tag. |
| 426 | * |
| 427 | * @return string Tag to use with the subheader, e.g. h2, h3, h4 |
| 428 | */ |
| 429 | protected function getSubheaderTag() { |
| 430 | return 'h3'; |
| 431 | } |
| 432 | |
| 433 | /** |
| 434 | * Override this function to provide an optional module footer. |
| 435 | * |
| 436 | * @return string HTML content of the footer |
| 437 | */ |
| 438 | protected function getFooter() { |
| 439 | return ''; |
| 440 | } |
| 441 | |
| 442 | /** |
| 443 | * @param string $name Name of the icon |
| 444 | * @param bool $invert Whether the icon should be inverted |
| 445 | * @return IconWidget |
| 446 | */ |
| 447 | protected function getHeaderIcon( $name, $invert ) { |
| 448 | $defaultIconClasses = [ |
| 449 | self::BASE_CSS_CLASS . '-header-icon', |
| 450 | 'icon-' . $name |
| 451 | ]; |
| 452 | $invertClasses = $invert ? |
| 453 | [ 'oo-ui-image-invert', 'oo-ui-checkboxInputWidget-checkIcon' ] : |
| 454 | []; |
| 455 | |
| 456 | return new IconWidget( [ |
| 457 | 'icon' => $name, |
| 458 | // HACK: IconWidget doesn't let us set 'invert' => true, and setting |
| 459 | // 'classes' => [ 'oo-ui-image-invert' ] doesn't work either, because |
| 460 | // Theme::getElementClasses() will unset it again. So instead, trick that code into |
| 461 | // thinking this is a checkbox icon, which will cause it to invert the icon |
| 462 | 'classes' => array_merge( $defaultIconClasses, $invertClasses ) |
| 463 | ] ); |
| 464 | } |
| 465 | |
| 466 | /** |
| 467 | * Override this function to provide the name of the header icon. |
| 468 | * |
| 469 | * @return string |
| 470 | */ |
| 471 | abstract protected function getHeaderIconName(); |
| 472 | |
| 473 | /** |
| 474 | * @return bool Whether the header icon should be inverted. |
| 475 | */ |
| 476 | protected function shouldInvertHeaderIcon() { |
| 477 | return false; |
| 478 | } |
| 479 | |
| 480 | /** |
| 481 | * Override this method if header should include the icon |
| 482 | * |
| 483 | * No styles provided by default! Remember to position the icon manually via CSS. |
| 484 | * |
| 485 | * @return bool Should header include the icon? |
| 486 | */ |
| 487 | protected function shouldHeaderIncludeIcon(): bool { |
| 488 | return false; |
| 489 | } |
| 490 | |
| 491 | /** |
| 492 | * Alias for MessageLocalizer::msg |
| 493 | * |
| 494 | * @param string|string[]|MessageSpecifier $key |
| 495 | * @param mixed ...$params |
| 496 | * @return Message |
| 497 | * @see MessageLocalizer::msg() |
| 498 | */ |
| 499 | protected function msg( $key, ...$params ) { |
| 500 | return $this->getContext()->msg( $key, ...$params ); |
| 501 | } |
| 502 | } |