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<?php |
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namespace nstdio\svg\import; |
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use nstdio\svg\container\SVG; |
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use nstdio\svg\ElementInterface; |
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use nstdio\svg\util\KeyValueWriter; |
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use ReflectionClass; |
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/** |
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* Class Importer |
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* |
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* @package nstdio\svg\import |
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* @author Edgar Asatryan <[email protected]> |
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*/ |
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class Importer implements ImportInterface |
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{ |
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public static $map = [ |
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'animate' => ['animation', ['attributeName', 'from', 'to', 'dur']], |
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'mpath' => ['animation', []], |
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'animateMotion' => ['animation', []], |
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'set' => ['animation', []], |
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'svg' => ['container', []], |
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'a' => ['container', []], |
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'defs' => ['container', []], |
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'g' => ['container', []], |
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'marker' => ['container', []], |
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'mask' => ['container', []], |
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'pattern' => ['container', []], |
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'switch' => ['container', []], |
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'symbol' => ['container', []], |
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'desc' => ['desc', ['nodeValue']], |
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'metadata' => ['desc', ['nodeValue']], |
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'title' => ['desc', ['nodeValue']], |
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'filter' => ['filter', []], |
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'feBlend' => ['filter', []], |
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'feColorMatrix' => ['filter', []], |
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'feComponentTransfer' => ['filter', []], |
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'feComposite' => ['filter', []], |
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'feConvolveMatrix' => ['filter', []], |
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'feDiffuseLighting' => ['filter', []], |
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'feDisplacementMap' => ['filter', []], |
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'feFlood' => ['filter', []], |
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'feFuncA' => ['filter', []], |
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'feFuncB' => ['filter', []], |
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'feFuncG' => ['filter', []], |
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'feFuncR' => ['filter', []], |
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'feGaussianBlur' => ['filter', []], |
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'image' => ['filter', []], |
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'feMerge' => ['filter', []], |
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'feMergeNode' => ['filter', []], |
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'feMorphology' => ['filter', []], |
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'feOffset' => ['filter', []], |
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'feSpecularLighting' => ['filter', []], |
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'feTile' => ['filter', []], |
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'feTurbulence' => ['filter', []], |
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'font' => ['font', []], |
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'font-face' => ['font', []], |
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'font-face-format' => ['font', []], |
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'font-face-name' => ['font', []], |
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'font-face-src' => ['font', []], |
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'font-face-uri' => ['font', []], |
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'glyph' => ['font', []], |
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'missing-glyph' => ['font', []], |
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'hkern' => ['font', []], |
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'vkern' => ['font', []], |
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'linearGradient' => ['gradient', []], |
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'radialGradient' => ['gradient', []], |
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'stop' => ['gradient', []], |
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'feDistantLight' => ['light', []], |
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'fePointLight' => ['light', []], |
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'feSpotLight' => ['light', []], |
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'circle' => ['shape', ['cx', 'cy', 'r']], |
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'ellipse' => ['shape', ['cx', 'cy', 'rx', 'ry']], |
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'line' => ['shape', ['x1', 'y1', 'x2', 'y2']], |
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'path' => ['shape', ['x', 'y']], |
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'polygon' => ['shape', []], |
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'polyline' => ['shape', []], |
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'rect' => ['shape', ['height', 'width', 'x', 'y']], |
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'altGlyph' => ['text', []], |
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'altGlyphDef' => ['text', []], |
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'altGlyphItem' => ['text', []], |
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'glyphRef' => ['text', []], |
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'text' => ['text', ['nodeValue']], |
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'textPath' => ['text', []], |
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'tref' => ['text', []], |
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'tspan' => ['text', []], |
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]; |
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public function fromString($svgString) |
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{ |
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$dom = new \DOMDocument('1.0', 'utf-8'); |
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$dom->loadXML($svgString); |
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$svgNode = $dom->getElementsByTagName('svg')->item(0); |
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if ($svgNode === null) { |
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return null; |
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} |
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/** @var SVG $svg */ |
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$svg = $this->toObject($svgNode, null); |
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$svg->removeChild($svg->getFirstChild()); |
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$this->buildObjectTree($svgNode, $svg); |
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return $svg; |
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} |
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/** |
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* @param \DOMElement $element |
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* |
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* @param $parent |
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* |
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* @return ElementInterface |
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*/ |
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private function toObject($element, $parent) |
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{ |
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$map = $this->getObjectCtor($element); |
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if ($map === null) { |
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return null; |
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} |
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$args = [$parent]; |
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$reflection = new ReflectionClass($map[0]); |
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if (!empty($map[1])) { |
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$args = array_merge($args, $this->getAttrs($element, $map[1])); |
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} |
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/** @var ElementInterface $object */ |
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$object = $reflection->newInstanceArgs($args); |
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$object->apply(KeyValueWriter::allAttributes($element)); |
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return $object; |
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} |
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private function getObjectCtor(\DOMElement $element) |
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{ |
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if (isset(self::$map[$element->nodeName]) === false) { |
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return null; |
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} |
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$map = self::$map[$element->nodeName]; |
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$map[0] = 'nstdio\\svg\\' . $map[0] . '\\' . $element->nodeName; |
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return $map; |
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} |
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/** |
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* @param \DOMElement $element |
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* |
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* @param array $attrs |
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* |
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* @return array |
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*/ |
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private function getAttrs(\DOMElement $element, array $attrs) |
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{ |
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$ret = []; |
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foreach ($element->attributes as $item) { |
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if (in_array($item->nodeName, $attrs)) { |
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$ret[$item->nodeName] = $item->nodeValue; |
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} |
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} |
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if (in_array('nodeValue', $attrs)) { |
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$ret['nodeValue'] = $element->nodeValue; |
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} |
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$diff = array_diff($attrs, array_keys($ret)); |
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foreach ($diff as $item) { |
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$ret[$item] = null; |
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} |
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return array_values($ret); |
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} |
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private function buildObjectTree(\DOMElement $element, ElementInterface $obj) |
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{ |
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/** @var \DOMElement $item */ |
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foreach ($element->childNodes as $key => $item) { |
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if ($item instanceof \DOMText) continue; |
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$parent = $this->toObject($item, $obj); |
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if ($item->hasChildNodes() && $parent !== null) { |
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$this->buildObjectTree($item, $parent); |
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} |
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} |
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} |
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} |
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This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.
Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.