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<?php |
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namespace Fonts; |
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use GuzzleHttp\Client; |
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class GoogleFonts |
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{ |
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const WEBFONTURL = 'https://www.googleapis.com/webfonts/v1/webfonts'; |
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const SORT_BY = [ |
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'alpha', |
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'date', |
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'popularity', |
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'style', |
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'trending' |
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]; |
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/** |
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* Google API key string |
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* @var string |
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*/ |
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private $apiKey; |
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/** |
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* The location where the temporary JSON file should be stored |
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* @var string |
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*/ |
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protected $file_location; |
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/** |
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* how fonts should be sorted when retrieved from Google |
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* @var string |
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*/ |
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public $sortOrder = 'popularity'; |
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/** |
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* This is the original font array retrieved from Google |
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* @var array |
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*/ |
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protected $fontList; |
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/** |
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* This is the array of fonts ordered into types |
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* @var array |
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*/ |
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protected $orderedList; |
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/** |
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* Error message to be displayed if no fonts exists |
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* @var string |
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*/ |
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public $error_message = 'Error: No fonts exist with the given parameters'; |
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/** |
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* Constructor |
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* @param string|false $apiKey This should either be set to your Google API key or left empty |
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*/ |
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public function __construct($apiKey = false) |
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{ |
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$this->setAPIKey($apiKey); |
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$this->setFontFileLocation(dirname(dirname(__FILE__)).'/fonts/'); |
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} |
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/** |
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* Sets the Google API Key |
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* @param string|false $apiKey This needs to be your Google API Key |
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* @return $this |
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*/ |
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public function setApiKey($apiKey) |
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{ |
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if (is_string($apiKey) && !empty(trim($apiKey))) { |
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$this->apiKey = trim($apiKey); |
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} |
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return $this; |
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} |
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/** |
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* Returns the Google API key if it has been set else will return false |
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* @return string|false This sill be the set Google API key or false |
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*/ |
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public function getApiKey() |
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{ |
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if (is_string($this->apiKey)) { |
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return $this->apiKey; |
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} |
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return false; |
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} |
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/** |
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* Sets the file locations where the font lists are stored |
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* @param string $location This should be the location that you wish to store the font list files |
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* @return $this |
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*/ |
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public function setFontFileLocation($location) |
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{ |
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if (!empty(trim($location)) && is_string($location)) { |
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$this->file_location = trim($location); |
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if (!is_dir($location)) { |
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mkdir($location, 0777, true); |
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} |
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} |
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return $this; |
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} |
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/** |
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* This is the location where the fonts file is stored |
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* @return string Returns the file storage location |
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*/ |
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public function getFontFileLocation() |
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{ |
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return $this->file_location; |
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} |
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/** |
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* Returns an array of weights available |
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* @return array|string If any weights exist will return an array else will return the error_message |
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*/ |
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public function getFontWeights() |
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{ |
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return $this->listFontTypes(); |
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} |
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/** |
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* Returns an array of subsets available |
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* @return array|string If any subsets exist will return an array else will return the error_message |
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*/ |
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public function getFontSubsets() |
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{ |
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return $this->listFontTypes('subset'); |
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} |
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/** |
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* Returns an array of types/categories available |
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* @return array|string If any types/categories exist will return an array else will return the error_message |
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*/ |
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public function getFontTypes() |
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{ |
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return $this->listFontTypes('type'); |
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} |
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/** |
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* Returns all of the fonts available with the selected weight/italic value |
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* @param string $weight This should be the weight value |
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* @return array|string |
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*/ |
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public function getFontsByWeight($weight) |
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{ |
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if ($weight == '400') { |
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$weight = 'regular'; |
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} |
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if ($weight == '400italic') { |
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$weight = 'italic'; |
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} |
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return $this->listFonts(strtolower($weight)); |
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} |
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/** |
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* Returns an array of fonts available with a given subset |
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* @param string $subset This should be the subset you ant to list the fonts by |
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* @return array|string If any fonts exists an array will be returned else the error message will be returned |
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*/ |
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public function getFontsBySubset($subset) |
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{ |
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return $this->listFonts(strtolower($subset), 'subset'); |
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} |
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/** |
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* Returns an array of fonts available with a given type/category |
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* @param string $style This should be the font type that you want to list fonts by |
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* @return array|string If any fonts exists an array will be returned else the error message will be returned |
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*/ |
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public function getFontsByType($style) |
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{ |
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return $this->listFonts(strtolower($style), 'type'); |
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} |
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/** |
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* Sorts all of the retrieve fonts into a custom array |
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* @param array|string $types This should be what you want to sort the fonts on |
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* @param array $font this should be the font information array |
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* @param string $style The main array item that you want to sort the font within e.g. weight, subset or category |
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*/ |
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protected function sortFontType($types, $font, $style = 'type') |
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{ |
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if (is_array($types)) { |
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foreach ($types as $type) { |
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$this->orderedList[$style][$type][$font['family']] = [($style === 'weight' ? 'file' : 'files') => ($style === 'weight' ? $font['files'][$type] : $font['files'])]; |
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} |
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} else { |
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$this->orderedList[$style][$types][$font['family']] = ['files' => $font['files']]; |
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} |
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} |
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/** |
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* Retrieve a list of all of the fonts from Google Fonts API |
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*/ |
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protected function retrieveFonts() |
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{ |
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$guzzle = new Client(); |
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$fonts = $guzzle->request('GET', $this->googleFontsURI()); |
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if ($fonts->getStatusCode() === 200) { |
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$this->fontList = json_decode($fonts->getBody(), true); |
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} |
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} |
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/** |
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* The Google fonts URL will be returned with the path information |
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* @return string |
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*/ |
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public function googleFontsURI() |
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{ |
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return self::WEBFONTURL . '?' . $this->buildQueryString(); |
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} |
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/** |
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* Builds the formatted URI path to retrieve the list of fonts from Google |
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* @return string |
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*/ |
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protected function buildQueryString() |
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{ |
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$queryString = []; |
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$queryString['key'] = $this->getApiKey(); |
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if ($this->sortOrder) { |
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$queryString['sort'] = $this->sortOrder; |
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} |
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return http_build_query($queryString); |
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} |
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/** |
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* Retrieves the ordered Google Fonts file |
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* @return boolean Returns true on success and false on failure |
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*/ |
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protected function getJSONFile() |
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{ |
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if (!is_array($this->orderedList)) { |
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if (file_exists($this->getFontFileLocation().'/fonts.json') && ((time() - filemtime($this->getFontFileLocation().'/fonts.json')) < 86400)) { |
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$this->orderedList = json_decode(file_get_contents($this->getFontFileLocation().'fonts.json'), true); |
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return true; |
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} |
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} |
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return $this->sortFonts(); |
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} |
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/** |
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* Sorts all of the fonts into a custom JSON file |
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* @return boolean If the file has successfully been created will return true else retruns false |
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*/ |
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protected function sortFonts() |
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{ |
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$this->retrieveFonts(); |
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if (is_array($this->fontList)) { |
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foreach ($this->fontList['items'] as $font) { |
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$this->sortFontType($font['category'], $font); |
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$this->sortFontType($font['variants'], $font, 'weight'); |
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$this->sortFontType($font['subsets'], $font, 'subset'); |
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} |
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return $this->createJSONFile(); |
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} |
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return false; |
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} |
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/** |
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* Creates the temporary file containing the list of fonts |
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* @return boolean Returns true on success false on failure |
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*/ |
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protected function createJSONFile() |
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{ |
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$fp = fopen($this->getFontFileLocation().'/fonts.json', 'w'); |
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fwrite($fp, json_encode($this->orderedList)); |
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return fclose($fp); |
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} |
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/** |
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* List all of the types available |
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* @param string $list The type that you are listing |
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* @return array|string If any types exist an array will be returned else will return the error message |
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*/ |
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View Code Duplication |
protected function listFontTypes($list = 'weight') |
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{ |
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$this->getJSONFile(); |
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if (array_key_exists($list, $this->orderedList)) { |
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$array = array_keys($this->orderedList[$list]); |
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sort($array); |
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return $array; |
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} |
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return $this->error_message; |
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} |
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/** |
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* Returns an ordered list of the Google Fonts available |
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* @param string $option This should be the $option that you want all of the fonts for |
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* @param string $list This needs to be the value that you are searching on |
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* @return array|string If any fonts exist for the given parameters an array will be returned else will return the error message |
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*/ |
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View Code Duplication |
protected function listFonts($option, $list = 'weight') |
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{ |
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$this->getJSONFile(); |
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if (array_key_exists($option, $this->orderedList[$list])) { |
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$array = array_keys($this->orderedList[$list][$option]); |
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return $array; |
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} |
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return $this->error_message; |
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} |
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} |
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