Total Complexity | 55 |
Total Lines | 491 |
Duplicated Lines | 0 % |
Changes | 0 |
Complex classes like Manifest 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 Manifest, and based on these observations, apply Extract Interface, too.
1 | <?php |
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28 | class Manifest |
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29 | { |
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30 | // Constants |
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31 | // ========================================================================= |
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32 | |||
33 | const CACHE_KEY = 'twigpack'; |
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34 | const CACHE_TAG = 'twigpack'; |
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35 | |||
36 | const DEVMODE_CACHE_DURATION = 1; |
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37 | |||
38 | // Protected Static Properties |
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39 | // ========================================================================= |
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40 | |||
41 | /** |
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42 | * @var array |
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43 | */ |
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44 | protected static $files; |
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45 | |||
46 | /** |
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47 | * @var bool |
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48 | */ |
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49 | protected static $isHot = false; |
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50 | |||
51 | // Public Static Methods |
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52 | // ========================================================================= |
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53 | |||
54 | /** |
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55 | * @param array $config |
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56 | * @param string $moduleName |
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57 | * @param bool $async |
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58 | * |
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59 | * @return string |
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60 | * @throws NotFoundHttpException |
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61 | */ |
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62 | public static function getCssModuleTags(array $config, string $moduleName, bool $async): string |
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77 | } |
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78 | |||
79 | /** |
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80 | * @param string $path |
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81 | * |
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82 | * @return string |
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83 | */ |
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84 | public static function getCssInlineTags(string $path): string |
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93 | } |
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94 | |||
95 | /** |
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96 | * @param array $config |
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97 | * @param null|string $name |
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98 | * |
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99 | * @return string |
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100 | */ |
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101 | public static function getCriticalCssTags(array $config, $name = null): string |
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126 | } |
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127 | |||
128 | /** |
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129 | * Returns the uglified loadCSS rel=preload Polyfill as per: |
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130 | * https://github.com/filamentgroup/loadCSS#how-to-use-loadcss-recommended-example |
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131 | * |
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132 | * @return string |
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133 | */ |
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134 | public static function getCssRelPreloadPolyfill(): string |
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135 | { |
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136 | return <<<EOT |
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137 | <script> |
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138 | /*! loadCSS. [c]2017 Filament Group, Inc. MIT License */ |
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139 | !function(t){"use strict";t.loadCSS||(t.loadCSS=function(){});var e=loadCSS.relpreload={};if(e.support=function(){var e;try{e=t.document.createElement("link").relList.supports("preload")}catch(t){e=!1}return function(){return e}}(),e.bindMediaToggle=function(t){var e=t.media||"all";function a(){t.media=e}t.addEventListener?t.addEventListener("load",a):t.attachEvent&&t.attachEvent("onload",a),setTimeout(function(){t.rel="stylesheet",t.media="only x"}),setTimeout(a,3e3)},e.poly=function(){if(!e.support())for(var a=t.document.getElementsByTagName("link"),n=0;n<a.length;n++){var o=a[n];"preload"!==o.rel||"style"!==o.getAttribute("as")||o.getAttribute("data-loadcss")||(o.setAttribute("data-loadcss",!0),e.bindMediaToggle(o))}},!e.support()){e.poly();var a=t.setInterval(e.poly,500);t.addEventListener?t.addEventListener("load",function(){e.poly(),t.clearInterval(a)}):t.attachEvent&&t.attachEvent("onload",function(){e.poly(),t.clearInterval(a)})}"undefined"!=typeof exports?exports.loadCSS=loadCSS:t.loadCSS=loadCSS}("undefined"!=typeof global?global:this); |
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140 | </script> |
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141 | EOT; |
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142 | } |
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143 | |||
144 | /** |
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145 | * @param array $config |
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146 | * @param string $moduleName |
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147 | * @param bool $async |
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148 | * |
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149 | * @return null|string |
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150 | * @throws NotFoundHttpException |
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151 | */ |
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152 | public static function getJsModuleTags(array $config, string $moduleName, bool $async) |
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153 | { |
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154 | $legacyModule = self::getModule($config, $moduleName, 'legacy'); |
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155 | if ($legacyModule === null) { |
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156 | return ''; |
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157 | } |
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158 | if ($async) { |
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159 | $modernModule = self::getModule($config, $moduleName, 'modern'); |
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160 | if ($modernModule === null) { |
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161 | return ''; |
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162 | } |
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163 | } |
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164 | $lines = []; |
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165 | if ($async) { |
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166 | $lines[] = "<script type=\"module\" src=\"{$modernModule}\"></script>"; |
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167 | $lines[] = "<script nomodule src=\"{$legacyModule}\"></script>"; |
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168 | } else { |
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169 | $lines[] = "<script src=\"{$legacyModule}\"></script>"; |
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170 | } |
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171 | |||
172 | return implode("\r\n", $lines); |
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173 | } |
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174 | |||
175 | /** |
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176 | * Safari 10.1 supports modules, but does not support the `nomodule` |
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177 | * attribute - it will load <script nomodule> anyway. This snippet solve |
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178 | * this problem, but only for script tags that load external code, e.g.: |
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179 | * <script nomodule src="nomodule.js"></script> |
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180 | * |
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181 | * Again: this will **not* # prevent inline script, e.g.: |
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182 | * <script nomodule>alert('no modules');</script>. |
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183 | * |
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184 | * This workaround is possible because Safari supports the non-standard |
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185 | * 'beforeload' event. This allows us to trap the module and nomodule load. |
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186 | * |
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187 | * Note also that `nomodule` is supported in later versions of Safari - |
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188 | * it's just 10.1 that omits this attribute. |
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189 | * |
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190 | * c.f.: https://gist.github.com/samthor/64b114e4a4f539915a95b91ffd340acc |
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191 | * |
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192 | * @return string |
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193 | */ |
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194 | public static function getSafariNomoduleFix(): string |
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195 | { |
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196 | return <<<EOT |
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197 | <script> |
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198 | !function(){var e=document,t=e.createElement("script");if(!("noModule"in t)&&"onbeforeload"in t){var n=!1;e.addEventListener("beforeload",function(e){if(e.target===t)n=!0;else if(!e.target.hasAttribute("nomodule")||!n)return;e.preventDefault()},!0),t.type="module",t.src=".",e.head.appendChild(t),t.remove()}}(); |
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199 | </script> |
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200 | EOT; |
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201 | } |
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202 | |||
203 | /** |
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204 | * Return the URI to a module |
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205 | * |
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206 | * @param array $config |
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207 | * @param string $moduleName |
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208 | * @param string $type |
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209 | * @param bool $soft |
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210 | * |
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211 | * @return null|string |
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212 | * @throws NotFoundHttpException |
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213 | */ |
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214 | public static function getModule(array $config, string $moduleName, string $type = 'modern', bool $soft = false) |
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242 | } |
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243 | |||
244 | /** |
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245 | * Return a module's raw entry from the manifest |
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246 | * |
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247 | * @param array $config |
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248 | * @param string $moduleName |
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249 | * @param string $type |
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250 | * @param bool $soft |
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251 | * |
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252 | * @return null|string |
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253 | * @throws NotFoundHttpException |
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254 | */ |
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255 | public static function getModuleEntry(array $config, string $moduleName, string $type = 'modern', bool $soft = false) |
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275 | } |
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276 | |||
277 | /** |
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278 | * Return a JSON-decoded manifest file |
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279 | * |
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280 | * @param array $config |
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281 | * @param string $type |
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282 | * |
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283 | * @return null|array |
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284 | * @throws NotFoundHttpException |
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285 | */ |
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286 | public static function getManifestFile(array $config, string $type = 'modern') |
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287 | { |
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288 | $manifest = null; |
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289 | // Determine whether we should use the devServer for HMR or not |
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290 | $devMode = Craft::$app->getConfig()->getGeneral()->devMode; |
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291 | self::$isHot = ($devMode && $config['useDevServer']); |
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292 | // Try to get the manifest |
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293 | while ($manifest === null) { |
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294 | $manifestPath = self::$isHot |
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295 | ? $config['devServer']['manifestPath'] |
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296 | : $config['server']['manifestPath']; |
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297 | // Normalize the path |
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298 | $path = self::combinePaths($manifestPath, $config['manifest'][$type]); |
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299 | $manifest = self::getJsonFile($path); |
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300 | // If the manifest isn't found, and it was hot, fall back on non-hot |
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301 | if ($manifest === null) { |
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302 | // We couldn't find a manifest; throw an error |
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303 | self::reportError(Craft::t( |
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304 | 'twigpack', |
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305 | 'Manifest file not found at: {manifestPath}', |
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306 | ['manifestPath' => $manifestPath] |
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307 | ), true); |
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308 | if (self::$isHot) { |
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309 | // Try again, but not with home module replacement |
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310 | self::$isHot = false; |
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311 | } else { |
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312 | // Give up and return null |
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313 | return null; |
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314 | } |
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315 | } |
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316 | } |
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317 | |||
318 | return $manifest; |
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319 | } |
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320 | |||
321 | /** |
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322 | * Returns the contents of a file from a URI path |
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323 | * |
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324 | * @param string $path |
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325 | * |
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326 | * @return string |
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327 | */ |
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328 | public static function getFile(string $path): string |
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331 | } |
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332 | |||
333 | /** |
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334 | * @param array $config |
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335 | * @param string $fileName |
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336 | * @param string $type |
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337 | * |
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338 | * @return string |
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339 | */ |
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340 | public static function getFileFromManifest(array $config, string $fileName, string $type = 'legacy'): string |
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341 | { |
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342 | try { |
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343 | $path = self::getModuleEntry($config, $fileName, $type, true); |
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344 | } catch (NotFoundHttpException $e) { |
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345 | Craft::error($e->getMessage(), __METHOD__); |
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346 | } |
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347 | if ($path !== null) { |
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348 | $path = self::combinePaths( |
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349 | $config['localFiles']['basePath'], |
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350 | $path |
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351 | ); |
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352 | |||
353 | return self::getFileFromUri($path, null) ?? ''; |
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354 | } |
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355 | |||
356 | return ''; |
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357 | } |
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358 | |||
359 | /** |
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360 | * Return the contents of a JSON file from a URI path |
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361 | * |
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362 | * @param string $path |
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363 | * |
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364 | * @return null|array |
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365 | */ |
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366 | protected static function getJsonFile(string $path) |
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367 | { |
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368 | return self::getFileFromUri($path, [self::class, 'jsonFileDecode']); |
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369 | } |
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370 | |||
371 | /** |
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372 | * Invalidate all of the manifest caches |
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373 | */ |
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374 | public static function invalidateCaches() |
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375 | { |
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376 | $cache = Craft::$app->getCache(); |
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377 | TagDependency::invalidate($cache, self::CACHE_TAG); |
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378 | Craft::info('All manifest caches cleared', __METHOD__); |
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379 | } |
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380 | |||
381 | // Protected Static Methods |
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382 | // ========================================================================= |
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383 | |||
384 | /** |
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385 | * Return the contents of a file from a URI path |
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386 | * |
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387 | * @param string $path |
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388 | * @param callable|null $callback |
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389 | * |
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390 | * @return null|mixed |
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391 | */ |
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392 | protected static function getFileFromUri(string $path, callable $callback = null) |
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393 | { |
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394 | // Resolve any aliases |
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395 | $alias = Craft::getAlias($path, false); |
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396 | if ($alias) { |
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397 | $path = $alias; |
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398 | } |
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399 | // Make sure it's a full URL |
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400 | if (!UrlHelper::isAbsoluteUrl($path) && !is_file($path)) { |
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401 | try { |
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402 | $path = UrlHelper::siteUrl($path); |
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403 | } catch (Exception $e) { |
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404 | Craft::error($e->getMessage(), __METHOD__); |
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405 | } |
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406 | } |
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407 | |||
408 | return self::getFileContents($path, $callback); |
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409 | } |
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410 | |||
411 | /** |
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412 | * Return the contents of a file from the passed in path |
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413 | * |
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414 | * @param string $path |
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415 | * @param callable $callback |
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416 | * |
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417 | * @return null|mixed |
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418 | */ |
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419 | protected static function getFileContents(string $path, callable $callback = null) |
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458 | } |
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459 | |||
460 | /** |
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461 | * Combined the passed in paths, whether file system or URL |
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462 | * |
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463 | * @param string ...$paths |
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464 | * |
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465 | * @return string |
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466 | */ |
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467 | protected static function combinePaths(string ...$paths): string |
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468 | { |
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469 | $last_key = \count($paths) - 1; |
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470 | array_walk($paths, function (&$val, $key) use ($last_key) { |
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471 | switch ($key) { |
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472 | case 0: |
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473 | $val = rtrim($val, '/ '); |
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474 | break; |
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475 | case $last_key: |
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476 | $val = ltrim($val, '/ '); |
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477 | break; |
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478 | default: |
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479 | $val = trim($val, '/ '); |
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480 | break; |
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481 | } |
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482 | }); |
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483 | |||
484 | $first = array_shift($paths); |
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485 | $last = array_pop($paths); |
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486 | $paths = array_filter($paths); |
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487 | array_unshift($paths, $first); |
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488 | $paths[] = $last; |
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489 | |||
490 | return implode('/', $paths); |
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491 | } |
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492 | |||
493 | /** |
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494 | * @param string $error |
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495 | * @param bool $soft |
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496 | * |
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497 | * @throws NotFoundHttpException |
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498 | */ |
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499 | protected static function reportError(string $error, $soft = false) |
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506 | } |
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507 | |||
508 | // Private Static Methods |
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509 | // ========================================================================= |
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510 | |||
511 | /** |
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512 | * @param $string |
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513 | * |
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514 | * @return mixed |
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515 | */ |
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516 | private static function jsonFileDecode($string) |
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519 | } |
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520 | } |
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521 |