Complex classes like MapAPI 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. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
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 MapAPI, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 17 | class MapAPI extends ViewableData |
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| 18 | { |
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| 19 | |||
| 20 | /** GoogleMap key **/ |
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| 21 | protected $googleMapKey = ''; |
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| 22 | |||
| 23 | /** GoogleMap ID for the HTML DIV **/ |
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| 24 | protected $googleMapId = 'googlemapapi'; |
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| 25 | |||
| 26 | /* Additional CSS classes to use when rendering the map */ |
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| 27 | protected $set_additional_css_classes = ''; |
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| 28 | |||
| 29 | /** Width of the gmap **/ |
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| 30 | protected $width = 800; |
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| 31 | |||
| 32 | /** Height of the gmap **/ |
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| 33 | protected $height = 600; |
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| 34 | |||
| 35 | /* array of lines to be drawn on the map */ |
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| 36 | protected $lines = array(); |
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| 37 | |||
| 38 | /* kml file to be rendered */ |
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| 39 | protected $kmlFiles = array(); |
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| 40 | |||
| 41 | /** Default zoom of the gmap **/ |
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| 42 | protected $zoom = 9; |
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| 43 | |||
| 44 | /** Enable the zoom of the Infowindow **/ |
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| 45 | protected $enableWindowZoom = false; |
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| 46 | |||
| 47 | /** Default zoom of the Infowindow **/ |
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| 48 | protected $infoWindowZoom = 13; |
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| 49 | |||
| 50 | /** Lang of the gmap **/ |
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| 51 | protected $lang = 'en'; |
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| 52 | |||
| 53 | /**Center of the gmap **/ |
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| 54 | protected $center = 'Paris, France'; |
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| 55 | |||
| 56 | /* |
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| 57 | Additional CSS classes to render as a class attribute for the div of the |
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| 58 | map. Use this if you want more fine grained control over your map using |
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| 59 | CSS. If blank it will be ignored |
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| 60 | */ |
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| 61 | protected $additional_css_classes = ''; |
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| 62 | |||
| 63 | |||
| 64 | /* Decided whether or not to show the inline map css style on div creation */ |
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| 65 | protected $show_inline_map_div_style = true; |
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| 66 | |||
| 67 | protected $latLongCenter = null; |
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| 68 | |||
| 69 | protected $jsonMapStyles = '[]'; |
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| 70 | |||
| 71 | protected $delayLoadMapFunction = false; |
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| 72 | |||
| 73 | /** |
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| 74 | * Type of the gmap, can be: |
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| 75 | * 'road' (roadmap), |
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| 76 | * 'satellite' (sattelite/aerial photographs) |
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| 77 | * 'hybrid' (hybrid of road and satellite) |
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| 78 | * 'terrain' (terrain) |
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| 79 | * The JavaScript for the mapping service will convert this into a suitable mapping type |
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| 80 | */ |
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| 81 | |||
| 82 | protected $mapType = 'road'; |
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| 83 | |||
| 84 | |||
| 85 | /** Content of the HTML generated **/ |
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| 86 | protected $content = ''; |
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| 87 | |||
| 88 | protected $mapService = 'google'; |
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| 89 | |||
| 90 | /** Hide the marker by default **/ |
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| 91 | protected $defaultHideMarker = false; |
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| 92 | |||
| 93 | /** Extra content (marker, etc...) **/ |
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| 94 | protected $contentMarker = ''; |
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| 95 | |||
| 96 | // a list of markers, markers being associative arrays |
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| 97 | protected $markers = array(); |
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| 98 | |||
| 99 | /** Use clusterer to display a lot of markers on the gmap **/ |
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| 100 | protected $useClusterer = false; |
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| 101 | protected $gridSize = 50; |
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| 102 | protected $maxZoom = 17; |
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| 103 | protected $clustererLibraryPath = "/mappable/javascript/google/markerclusterer.js"; |
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| 104 | |||
| 105 | /** Enable automatic center/zoom **/ |
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| 106 | protected $enableAutomaticCenterZoom = false; |
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| 107 | |||
| 108 | /** maximum longitude of all markers **/ |
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| 109 | protected $maxLng = -1000000; |
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| 110 | |||
| 111 | /** minimum longitude of all markers **/ |
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| 112 | protected $minLng = 1000000; |
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| 113 | |||
| 114 | /** max latitude of all markers **/ |
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| 115 | protected $maxLat = -1000000; |
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| 116 | |||
| 117 | /** min latitude of all markers **/ |
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| 118 | protected $minLat = 1000000; |
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| 119 | |||
| 120 | /** map center latitude (horizontal), calculated automatically as markers |
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| 121 | are added to the map **/ |
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| 122 | protected $centerLat = null; |
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| 123 | |||
| 124 | /** map center longitude (vertical), calculated automatically as markers |
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| 125 | are added to the map **/ |
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| 126 | protected $centerLng = null; |
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| 127 | |||
| 128 | /** factor by which to fudge the boundaries so that when we zoom encompass, |
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| 129 | the markers aren't too close to the edge **/ |
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| 130 | protected $coordCoef = 0.01; |
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| 131 | |||
| 132 | /* set this to true to render button to maximize / minimize a map */ |
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| 133 | protected $allowFullScreen = null; |
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| 134 | |||
| 135 | /** |
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| 136 | * Class constructor |
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| 137 | * |
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| 138 | * @param string $googleMapKey the googleMapKey |
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| 139 | */ |
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| 140 | |||
| 141 | public function __construct($googleMapKey = '') { |
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| 144 | |||
| 145 | /** |
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| 146 | * Set the key of the gmap |
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| 147 | * |
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| 148 | * @param string $googleMapKey the googleMapKey |
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| 149 | * |
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| 150 | * @return MapAPI |
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| 151 | */ |
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| 152 | |||
| 153 | public function setKey($googleMapKey) { |
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| 157 | |||
| 158 | public function setShowInlineMapDivStyle($new_show_inline_map_div_style) { |
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| 162 | |||
| 163 | public function setAdditionalCSSClasses($new_additional_css_classes) { |
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| 167 | |||
| 168 | |||
| 169 | public function setMapStyle($newStyles) { |
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| 173 | |||
| 174 | |||
| 175 | |||
| 176 | public function setDelayLoadMapFunction($newDelay) { |
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| 180 | |||
| 181 | /** |
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| 182 | * Set the useClusterer parameter (optimization to display a lot of marker) |
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| 183 | * |
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| 184 | * @param boolean $useClusterer use cluster or not |
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| 185 | * @param int $gridSize grid size |
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| 186 | * @param int $maxZoom max zoom to cluster at |
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| 187 | * |
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| 188 | * * @return MapAPI This same object, in order to enable chaining of methods |
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| 189 | */ |
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| 190 | |||
| 191 | public function setClusterer($useClusterer, $gridSize = 50, $maxZoom = 17, |
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| 199 | |||
| 200 | /** |
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| 201 | * Set the ID of the default gmap DIV |
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| 202 | * |
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| 203 | * @param string $googleMapId the google div ID |
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| 204 | * |
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| 205 | * @return MapAPI This same object, in order to enable chaining of methods |
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| 206 | */ |
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| 207 | |||
| 208 | public function setDivId($googleMapId) { |
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| 212 | |||
| 213 | /** |
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| 214 | * Set the size of the gmap. If these values are not provided |
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| 215 | * then CSS is used instead |
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| 216 | * |
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| 217 | * @param int $width GoogleMap width |
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| 218 | * @param int $height GoogleMap height |
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| 219 | * |
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| 220 | * @return MapAPI This same object, in order to enable chaining of methods |
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| 221 | */ |
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| 222 | |||
| 223 | public function setSize($width, $height) { |
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| 228 | |||
| 229 | /** |
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| 230 | * Set the lang of the gmap |
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| 231 | * |
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| 232 | * @param string $lang GoogleMap lang : fr,en,.. |
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| 233 | * |
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| 234 | * @return MapAPI This same object, in order to enable chaining of methods |
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| 235 | */ |
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| 236 | |||
| 237 | public function setLang($lang) { |
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| 241 | |||
| 242 | /** |
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| 243 | * Set the zoom of the gmap |
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| 244 | * |
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| 245 | * @param int $zoom GoogleMap zoom. |
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| 246 | * |
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| 247 | * @return MapAPI This same object, in order to enable chaining of methods |
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| 248 | */ |
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| 249 | |||
| 250 | public function setZoom($zoom) { |
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| 254 | |||
| 255 | /** |
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| 256 | * Set the zoom of the infowindow |
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| 257 | * |
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| 258 | * @param int $infoWindowZoom GoogleMap information window zoom. |
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| 259 | * |
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| 260 | * @return MapAPI This same object, in order to enable chaining of methods |
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| 261 | */ |
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| 262 | |||
| 263 | public function setInfoWindowZoom($infoWindowZoom) { |
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| 267 | |||
| 268 | /** |
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| 269 | * Enable the zoom on the marker when you click on it |
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| 270 | * |
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| 271 | * @param int $enableWindowZoom info window enabled zoom. |
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| 272 | * |
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| 273 | * @return MapAPI This same object, in order to enable chaining of methods |
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| 274 | */ |
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| 275 | |||
| 276 | public function setEnableWindowZoom($enableWindowZoom) { |
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| 280 | |||
| 281 | /** |
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| 282 | * Enable theautomatic center/zoom at the gmap load |
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| 283 | * |
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| 284 | * @param int $enableAutomaticCenterZoom enable automatic centre zoom |
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| 285 | * |
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| 286 | * @return MapAPI This same object, in order to enable chaining of methods |
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| 287 | */ |
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| 288 | |||
| 289 | public function setEnableAutomaticCenterZoom($enableAutomaticCenterZoom) { |
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| 293 | |||
| 294 | /** |
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| 295 | * Set the center of the gmap (an address) |
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| 296 | * |
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| 297 | * @param string $center GoogleMap center (an address) |
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| 298 | * |
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| 299 | * @return MapAPI This same object, in order to enable chaining of methods |
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| 300 | */ |
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| 301 | |||
| 302 | public function setCenter($center) { |
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| 306 | |||
| 307 | /** |
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| 308 | * Set the type of the gmap. Also takes into account legacy settings |
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| 309 | * |
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| 310 | * FIXME - allow other valid settings in config for map type |
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| 311 | * |
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| 312 | * @param string $mapType Can be one of road,satellite,hybrid or terrain. Defaults to road |
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| 313 | * |
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| 314 | * @return MapAPI This same object, in order to enable chaining of methods |
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| 315 | */ |
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| 316 | |||
| 317 | public function setMapType($mapType) { |
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| 338 | |||
| 339 | /* |
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| 340 | Set whether or not to allow the full screen tools |
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| 341 | @return MapAPI This same object, in order to enable chaining of methods |
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| 342 | */ |
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| 343 | public function setAllowFullScreen($allowed) { |
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| 347 | |||
| 348 | /** |
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| 349 | * Set the center of the gmap |
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| 350 | * |
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| 351 | * @return MapAPI This same object, in order to enable chaining of methods |
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| 352 | **/ |
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| 353 | public function setLatLongCenter($center) { |
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| 369 | |||
| 370 | /** |
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| 371 | * Set the defaultHideMarker |
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| 372 | * |
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| 373 | * @param boolean $defaultHideMarker hide all the markers on the map by default |
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| 374 | * |
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| 375 | * @return MapAPI |
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| 376 | */ |
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| 377 | |||
| 378 | public function setDefaultHideMarker($defaultHideMarker) { |
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| 382 | |||
| 383 | /** |
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| 384 | * Get the google map content |
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| 385 | * |
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| 386 | * @return string the google map html code |
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| 387 | */ |
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| 388 | |||
| 389 | public function getGoogleMap() { |
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| 392 | |||
| 393 | |||
| 394 | /** |
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| 395 | * Get URL content using cURL. |
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| 396 | * |
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| 397 | * @param string $url the url |
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| 398 | * |
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| 399 | * @return string the html code |
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| 400 | * |
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| 401 | * @todo add proxy settings |
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| 402 | */ |
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| 403 | |||
| 404 | public function getContent($url) { |
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| 414 | |||
| 415 | /** |
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| 416 | * Geocoding an address (address -> lat,lng) |
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| 417 | * |
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| 418 | * @param string $address an address |
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| 419 | * |
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| 420 | * @return string array with precision, lat & lng |
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| 421 | */ |
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| 422 | |||
| 423 | public function geocoding($address) { |
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| 439 | |||
| 440 | /** |
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| 441 | * Add marker by his coord |
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| 442 | * |
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| 443 | * @param string $lat lat |
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| 444 | * @param string $lng lngs |
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| 445 | * @param string $html html code display in the info window |
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| 446 | * @param string $category marker category |
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| 447 | * @param string $icon an icon url |
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| 448 | * |
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| 449 | * @return MapAPI |
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| 450 | */ |
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| 451 | |||
| 452 | public function addMarkerByCoords($lat, $lng, $html = '', $category = '', $icon = '') { |
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| 463 | |||
| 464 | |||
| 465 | /** |
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| 466 | * Add marker by his address |
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| 467 | * |
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| 468 | * @param string $address an ddress |
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| 469 | * @param string $content html code display in the info window |
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| 470 | * @param string $category marker category |
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| 471 | * @param string $icon an icon url |
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| 472 | * |
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| 473 | * @return MapAPI |
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| 474 | */ |
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| 475 | |||
| 476 | public function addMarkerByAddress($address, $content = '', $category = '', $icon = '') { |
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| 485 | |||
| 486 | /** |
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| 487 | * Add marker by an array of coord |
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| 488 | * |
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| 489 | * @param array $coordtab an array of lat,lng,content |
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| 490 | * @param string $category marker category |
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| 491 | * @param string $icon an icon url |
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| 492 | * |
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| 493 | * @return MapAPI |
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| 494 | */ |
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| 495 | |||
| 496 | public function addArrayMarkerByCoords($coordtab, $category = '', $icon = '') { |
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| 502 | |||
| 503 | |||
| 504 | /** |
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| 505 | * Adds a {@link ViewableData} object that implements {@link Mappable} |
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| 506 | * to the map. |
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| 507 | * @param $infowindowtemplateparams Optional array of extra parameters to pass to the map info window |
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| 508 | * |
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| 509 | * @param ViewableData $obj |
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| 510 | */ |
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| 511 | public function addMarkerAsObject(ViewableData $obj, $infowindowtemplateparams = null) { |
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| 545 | |||
| 546 | |||
| 547 | /** |
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| 548 | * Draws a line between two {@link ViewableData} objects |
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| 549 | * |
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| 550 | * @param ViewableData $one The first point |
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| 551 | * @param ViewableData $two The second point |
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| 552 | * @param string $color The hexidecimal color of the line |
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| 553 | */ |
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| 554 | public function connectPoints(ViewableData $one, ViewableData $two, $color = "#FF3300") { |
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| 561 | |||
| 562 | |||
| 563 | public function forTemplate() { |
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| 567 | |||
| 568 | /** |
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| 569 | * Add a KML file which will be rendered on this map. Normally used for likes |
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| 570 | * of GPS traces from activities |
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| 571 | * |
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| 572 | * @param string $url url of the kml file compatible with gmap and gearth |
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| 573 | * |
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| 574 | * @return MapAPI |
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| 575 | */ |
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| 576 | |||
| 577 | public function addKML($url) { |
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| 581 | |||
| 582 | |||
| 583 | /* |
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| 584 | Add a line to the map |
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| 585 | |||
| 586 | */ |
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| 587 | public function addLine($from = array(), $to = array(), $color = "#FF3300") { |
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| 599 | |||
| 600 | |||
| 601 | /* |
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| 602 | For php 5.3 |
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| 603 | */ |
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| 604 | private function jsonRemoveUnicodeSequences($struct) { |
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| 609 | |||
| 610 | |||
| 611 | /** |
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| 612 | * Generate the gmap |
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| 613 | * |
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| 614 | * @return void |
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| 615 | */ |
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| 616 | |||
| 617 | public function generate() { |
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| 724 | |||
| 725 | /** |
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| 726 | * @param string $templateName |
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| 727 | * @param ArrayData $templateVariables |
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| 728 | */ |
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| 729 | function processTemplateHTML($templateName, $templateVariables = null) { |
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| 737 | } |
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| 738 |
This check looks for assignments to scalar types that may be of the wrong type.
To ensure the code behaves as expected, it may be a good idea to add an explicit type cast.