FormElement::__construct() - Code Metrics - Inspection of "Added class FormMeter" - Stefanius67/Formgenerator - Measure and Improve Code Quality continuously with Scrutinizer

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by Stefan

created 2021-07-06 18:26 UTC

FormElement::__construct() A

↳ Parent: FormElement

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	1
c	1
b	0
f	0
nc	1
nop	1
dl	0
loc	3
rs	10

<?php
declare(strict_types=1);

namespace SKien\Formgenerator;

/**
 * Base-class for all elements of a form.
 *
 * @package Formgenerator
 * @author Stefanius <[email protected]>
 * @copyright MIT License - see the LICENSE file for details
 */
abstract class FormElement implements FormElementInterface
{
    use XMLHelper;

    /** @var FormGenerator the FormGenerator this element belongs to     */
    protected FormGenerator $oFG;
    /** @var FormCollection the parent element - only FormGenerator must has no parent     */
    protected ?FormCollection $oParent = null;
    /** @var int tab index of the element if it can get focus     */
    protected int $iTabindex = -1;
    /** @var int col inside current line     */
    protected int $iCol = 0;
    /** @var string element name     */
    protected string $strName = '';
    /** @var string element id     */
    protected string $strID = '';
    /** @var string CSS class of the element     */
    protected string $strClass = '';
    /** @var FormFlags flags that specify the appearance and behaviour     */
    protected FormFlags $oFlags;
    /** @var array attributes of the element     */
    protected ?array $aAttrib = null;
    /** @var array (CSS) styles of the element     */
    protected ?array $aStyle = null;

    /**
     * Create any kind of form element.
     * @see FormFlags
     * @param int $wFlags   any combination of FormFlag constants
     */
    public function __construct(int $wFlags)
    {
        $this->oFlags = new FormFlags($wFlags);
    }

    /**
     * Create the form element from the given XML-element.
     * Because several subclasses of FormElement has different constructors, we
     * need one uniform static function to be able to create all elements
     * independent from the subclass within a loop.
     * In the derived classes this function must return an instance of the
     * requested class.
     * @param \DOMElement $oXMLElement  the XML-element containing the information
     * @param FormCollection $oFormParent   the form parent of the element to create
     * @return FormElement|NULL the created element
     * @internal
     */
    abstract static public function fromXML(\DOMElement $oXMLElement, FormCollection $oFormParent) : ?FormElement;

    /**
     * In addition to the parameters needed by the constructor of each separate class,
     * some further attribs can be loaded after creation.
     * In contrast to the static fromXML() method, this method can be defined in parent
     * classes for general attributes.
     * In the derived classes this method should called it's parent down through all
     * parent-classes!
     * @param \DOMElement $oXMLElement
     * @internal
     */
    public function readAdditionalXML(\DOMElement $oXMLElement) : void
    {
        if (($strID = self::getAttribString($oXMLElement, 'id')) !== null) {
            $this->setID($strID);
        }
        if (($strStyle = self::getAttribString($oXMLElement, 'style')) !== null) {
            $this->parseStyle($strStyle);
        }
        if (($strCSSClass = self::getAttribString($oXMLElement, 'class')) !== null) {
            $this->addClass($strCSSClass);
        }
        $this->aAttrib = $this->readElementAttributes($oXMLElement, $this->aAttrib);
    }

    /**
     * Return the FormGenerator this element belongs to.
     * @return FormGenerator
     * @internal
     */
    public function getFG() : ?FormGenerator
    {
        return $this->oFG;
    }

    /**
     * Set the parent of this element.
     * The Formgenerator of the parent is adopted for this element.
     * If there are global flags set for the FormGenerator, this flags are added.
     * @param FormCollection $oParent
     * @internal
     */
    public function setParent(FormCollection $oParent) : void
    {
        $this->oParent = $oParent;
        $this->oFG = $oParent->oFG;
        $this->addFlags($this->oFG->getGlobalFlags());
        $this->onParentSet();
    }

    /**
     * Set the current col.
     * If this element is added as a child of a FormLine, the column is set in
     * order to be able to calculate the correct width of the element.
     * @param int $iCol
     * @internal
     */
    public function setCol(int $iCol) : void
    {
        $this->iCol = $iCol;
    }

    /**
     * Set ID for the element.
     * @param string $strID
     */
    public function setID(string $strID) : void
    {
        $this->strID = $strID;
    }

    /**
     * Set text for the elements title attribute.
     * @param string $strTitle
     */
    public function setTitle(string $strTitle) : void
    {
        if (strlen($strTitle) > 0) {
            $this->addAttribute('title', $strTitle);
        }
    }

    /**
     * Set the tab index of the element.
     * Method is called from the PageGenerator after an element is added to the form.
     * @param int $iTabindex
     * @return int the number of indexes, the element needs
     * @internal
     */
    public function setTabindex(/** @scrutinizer ignore-unused */ int $iTabindex) : int
    {
        return 0;
    }

    /**
     * Add flags to element.
     * @param int $wFlags
     */
    public function addFlags(int $wFlags) : void
    {
        $this->oFlags->add($wFlags);
    }

    /**
     * Add any attribute.
     * Attributes with null value are ignored!
     * If the attribute allready exist, the value will be overwritten.
     * @param string $strName attribute name
     * @param string $strValue attribute value
     */
    public function addAttribute(string $strName, ?string $strValue = '') : void
    {
        if ($strValue === null) {
            return;
        }
        $strName = strtolower($strName);
        if ($this->aAttrib == null) {
            $this->aAttrib = array();
        }
        if ($strName == 'style') {
            // style should no longer be set through AddAttribute()
            trigger_error('use AddStyle() to define additional styles for element!', E_USER_ERROR);
        }
        $this->aAttrib[$strName] = $strValue;
    }

    /**
     * Add any style.
     * If the style allready exist, the value will be overwritten.
     * @param string $strName   style
     * @param string $strValue  value
     */
    public function addStyle(string $strName, string $strValue) : void
    {
        $strName = strtolower($strName);
        if ($this->aStyle == null) {
            $this->aStyle = array();
        }
        $this->aStyle[$strName] = $strValue;
    }

    /**
     * Set the CSS class of the element.
     * Any previously setting will be overwritten.
     * @param string $strClass
     */
    public function setClass(string $strClass) : void
    {
        $this->strClass = $strClass;
    }

    /**
     * Add additional class to element.
     * Class is added to the existing classname separated with a blank
     * @param string $strClass
     */
    public function addClass(string $strClass) : void
    {
        if (strlen($this->strClass) > 0) {
            $this->strClass .= ' ';
        }
        $this->strClass .= $strClass;
    }

    /**
     * Get CSS styles related to this element.
     * This method gives each element the chance to add special styles to the
     * current page. <br/>
     * <b>This method is only called for elements having member bCreateStyle set to true!</b>
     * @return string
     * @internal
     */
    public function getStyle() : string
    {
        return '';
    }

    /**
     * @return string
     * @internal
     */
    abstract public function getHTML() : string;

    /**
     * Method called, after parent amd formgenerator is set properly.
     * Enhancing classes can use this method, to initialize properties that
     * nneds the parent or formgenerator (... configuration, global settings)
     */
    protected function onParentSet() : void
    {
    }

    /**
     * Build the 'container' div arround the current element.
     * Additional styles (alignment, ...) can be passed.
     * @param string $strStyle
     * @return string
     */
    protected function buildContainerDiv(string $strStyle = '') : string
    {
        if (strpos($strStyle, 'float') === false) {
            $strStyle = 'float: left; ' . $strStyle;
        }
        $strWidth = ($this->oParent ? $this->oParent->getColWidth($this->iCol) : '');
        if (!empty($strWidth)) {
            $strStyle = rtrim($strStyle, '; ');
            $strStyle .= '; width: ' . $strWidth . ';';
        }
        $strHTML = '<div style="' . $strStyle . '">';

        return $strHTML;
    }

    /**
     * Build the style attribute for the element.
     * @return string
     */
    protected function buildStyle() : string
    {
        $strStyle = '';
        if ($this->aStyle != null) {
            $strStyle = ' style="';
            foreach ($this->aStyle as $strName => $strValue) {
                $strStyle .= ' ' . $strName . ': ' . $strValue . ';';
            }
            $strStyle .= '"';
        }
        return $strStyle;
    }

    /**
     * Build all defined attributes for the element.
     * @return string
     */
    protected function buildAttributes() : string
    {
        $strAttrib = '';
        if ($this->aAttrib != null) {
            foreach ($this->aAttrib as $strName => $strValue) {
                $strAttrib .= ' ' . $strName;
                if (strlen($strValue) > 0) {
                    $strAttrib .= '="' . $strValue . '"';
                }
            }
        }
        return $strAttrib;
    }

    /**
     * Build the markup for the value attribute.
     * Retrieve value for the element from the FormData.
     * @return string Empty string if no value set, complete attribute if set
     */
    protected function buildValue() : string
    {
        $strHTML = '';
        $strValue = $this->oFG->getData()->getValue($this->strName);

        if ($this->oFlags->isSet(FormFlags::TRIM)) {
            $strValue = trim($strValue);
        }
        if (!$this->oFlags->isSet(FormFlags::NO_ZERO) || ($strValue != 0 && $strValue != '0')) {
            $strHTML = ' value="' . str_replace('"', '&quot;', $strValue) . '"';
        }
        return $strHTML;
    }

    /**
     * Build the markup for the class attribute.
     * @return string Empty string if no class set, complete attribute if set
     */
    protected function buildClass() : string
    {
        $strClass = '';
        if (!empty($this->strClass)) {
            $strClass .= ' class="' . $this->strClass . '"';
        }
        return $strClass;
    }

    /**
     * Build the markup for the ID attribute.
     * @return string Empty string if no id set, complete attribute if set
     */
    protected function buildID() : string
    {
        $strID = '';
        if (!empty($this->strID)) {
            $strID .= ' id="' . $this->strID . '"';
        }
        return $strID;
    }

    /**
     * Build the markup for the tabindex attribute.
     * @return string Empty string if $iTabindex = 0, complete attribute if set
     */
    protected function buildTabindex() : string
    {
        $strTabindex = '';
        if ($this->iTabindex > 0) {
            $strTabindex = ' tabindex="' . $this->iTabindex . '"';
        }
        return $strTabindex;
    }

    /**
     * Parse a given style attribute into the components it contains.
     * @param string $strStyle
     */
    protected function parseStyle($strStyle) : void
    {
        if ($this->aStyle === null) {
            $this->aStyle = array();
        }
        $aStyles = explode(';', trim($strStyle));
        foreach ($aStyles as $strStyleDef) {
            $aStyleDef = explode(':', trim($strStyleDef));
            if (count($aStyleDef) == 2) {
                $strName = trim($aStyleDef[0]);
                $strValue = str_replace(';', '', $aStyleDef[1]);
                $this->aStyle[$strName] = trim($strValue);
            }
        }
    }

    /**
     * Get the requested attribute.
     * @param string $strName
     * @return string|NULL      return null, if attribute not set
     */
    protected function getAttribute(string $strName) : ?string
    {
        return ($this->aAttrib && isset($this->aAttrib[$strName])) ? $this->aAttrib[$strName] : null;
    }
}



1			<?php
2			declare(strict_types=1);
3
4			namespace SKien\Formgenerator;
5
6			/**
7			* Base-class for all elements of a form.
8			*
9			* @package Formgenerator
10			* @author Stefanius <[email protected]>
11			* @copyright MIT License - see the LICENSE file for details
12			*/
13			abstract class FormElement implements FormElementInterface
14			{
15			use XMLHelper;
16
17			/** @var FormGenerator the FormGenerator this element belongs to */
18			protected FormGenerator $oFG;
19			/** @var FormCollection the parent element - only FormGenerator must has no parent */
20			protected ?FormCollection $oParent = null;
21			/** @var int tab index of the element if it can get focus */
22			protected int $iTabindex = -1;
23			/** @var int col inside current line */
24			protected int $iCol = 0;
25			/** @var string element name */
26			protected string $strName = '';
27			/** @var string element id */
28			protected string $strID = '';
29			/** @var string CSS class of the element */
30			protected string $strClass = '';
31			/** @var FormFlags flags that specify the appearance and behaviour */
32			protected FormFlags $oFlags;
33			/** @var array attributes of the element */
34			protected ?array $aAttrib = null;
35			/** @var array (CSS) styles of the element */
36			protected ?array $aStyle = null;
37
38			/**
39			* Create any kind of form element.
40			* @see FormFlags
41			* @param int $wFlags any combination of FormFlag constants
42			*/
43			public function __construct(int $wFlags)
44			{
45			$this->oFlags = new FormFlags($wFlags);
46			}
47
48			/**
49			* Create the form element from the given XML-element.
50			* Because several subclasses of FormElement has different constructors, we
51			* need one uniform static function to be able to create all elements
52			* independent from the subclass within a loop.
53			* In the derived classes this function must return an instance of the
54			* requested class.
55			* @param \DOMElement $oXMLElement the XML-element containing the information
56			* @param FormCollection $oFormParent the form parent of the element to create
57			* @return FormElement\|NULL the created element
58			* @internal
59			*/
60			abstract static public function fromXML(\DOMElement $oXMLElement, FormCollection $oFormParent) : ?FormElement;
61
62			/**
63			* In addition to the parameters needed by the constructor of each separate class,
64			* some further attribs can be loaded after creation.
65			* In contrast to the static fromXML() method, this method can be defined in parent
66			* classes for general attributes.
67			* In the derived classes this method should called it's parent down through all
68			* parent-classes!
69			* @param \DOMElement $oXMLElement
70			* @internal
71			*/
72			public function readAdditionalXML(\DOMElement $oXMLElement) : void
73			{
74			if (($strID = self::getAttribString($oXMLElement, 'id')) !== null) {
75			$this->setID($strID);
76			}
77			if (($strStyle = self::getAttribString($oXMLElement, 'style')) !== null) {
78			$this->parseStyle($strStyle);
79			}
80			if (($strCSSClass = self::getAttribString($oXMLElement, 'class')) !== null) {
81			$this->addClass($strCSSClass);
82			}
83			$this->aAttrib = $this->readElementAttributes($oXMLElement, $this->aAttrib);
84			}
85
86			/**
87			* Return the FormGenerator this element belongs to.
88			* @return FormGenerator
89			* @internal
90			*/
91			public function getFG() : ?FormGenerator
92			{
93			return $this->oFG;
94			}
95
96			/**
97			* Set the parent of this element.
98			* The Formgenerator of the parent is adopted for this element.
99			* If there are global flags set for the FormGenerator, this flags are added.
100			* @param FormCollection $oParent
101			* @internal
102			*/
103			public function setParent(FormCollection $oParent) : void
104			{
105			$this->oParent = $oParent;
106			$this->oFG = $oParent->oFG;
107			$this->addFlags($this->oFG->getGlobalFlags());
108			$this->onParentSet();
109			}
110
111			/**
112			* Set the current col.
113			* If this element is added as a child of a FormLine, the column is set in
114			* order to be able to calculate the correct width of the element.
115			* @param int $iCol
116			* @internal
117			*/
118			public function setCol(int $iCol) : void
119			{
120			$this->iCol = $iCol;
121			}
122
123			/**
124			* Set ID for the element.
125			* @param string $strID
126			*/
127			public function setID(string $strID) : void
128			{
129			$this->strID = $strID;
130			}
131
132			/**
133			* Set text for the elements title attribute.
134			* @param string $strTitle
135			*/
136			public function setTitle(string $strTitle) : void
137			{
138			if (strlen($strTitle) > 0) {
139			$this->addAttribute('title', $strTitle);
140			}
141			}
142
143			/**
144			* Set the tab index of the element.
145			* Method is called from the PageGenerator after an element is added to the form.
146			* @param int $iTabindex
147			* @return int the number of indexes, the element needs
148			* @internal
149			*/
150			public function setTabindex(/** @scrutinizer ignore-unused */ int $iTabindex) : int
151			{
152			return 0;
153			}
154
155			/**
156			* Add flags to element.
157			* @param int $wFlags
158			*/
159			public function addFlags(int $wFlags) : void
160			{
161			$this->oFlags->add($wFlags);
162			}
163
164			/**
165			* Add any attribute.
166			* Attributes with null value are ignored!
167			* If the attribute allready exist, the value will be overwritten.
168			* @param string $strName attribute name
169			* @param string $strValue attribute value
170			*/
171			public function addAttribute(string $strName, ?string $strValue = '') : void
172			{
173			if ($strValue === null) {
174			return;
175			}
176			$strName = strtolower($strName);
177			if ($this->aAttrib == null) {
178			$this->aAttrib = array();
179			}
180			if ($strName == 'style') {
181			// style should no longer be set through AddAttribute()
182			trigger_error('use AddStyle() to define additional styles for element!', E_USER_ERROR);
183			}
184			$this->aAttrib[$strName] = $strValue;
185			}
186
187			/**
188			* Add any style.
189			* If the style allready exist, the value will be overwritten.
190			* @param string $strName style
191			* @param string $strValue value
192			*/
193			public function addStyle(string $strName, string $strValue) : void
194			{
195			$strName = strtolower($strName);
196			if ($this->aStyle == null) {
197			$this->aStyle = array();
198			}
199			$this->aStyle[$strName] = $strValue;
200			}
201
202			/**
203			* Set the CSS class of the element.
204			* Any previously setting will be overwritten.
205			* @param string $strClass
206			*/
207			public function setClass(string $strClass) : void
208			{
209			$this->strClass = $strClass;
210			}
211
212			/**
213			* Add additional class to element.
214			* Class is added to the existing classname separated with a blank
215			* @param string $strClass
216			*/
217			public function addClass(string $strClass) : void
218			{
219			if (strlen($this->strClass) > 0) {
220			$this->strClass .= ' ';
221			}
222			$this->strClass .= $strClass;
223			}
224
225			/**
226			* Get CSS styles related to this element.
227			* This method gives each element the chance to add special styles to the
228			* current page. <br/>
229			* <b>This method is only called for elements having member bCreateStyle set to true!</b>
230			* @return string
231			* @internal
232			*/
233			public function getStyle() : string
234			{
235			return '';
236			}
237
238			/**
239			* @return string
240			* @internal
241			*/
242			abstract public function getHTML() : string;
243
244			/**
245			* Method called, after parent amd formgenerator is set properly.
246			* Enhancing classes can use this method, to initialize properties that
247			* nneds the parent or formgenerator (... configuration, global settings)
248			*/
249			protected function onParentSet() : void
250			{
251			}
252
253			/**
254			* Build the 'container' div arround the current element.
255			* Additional styles (alignment, ...) can be passed.
256			* @param string $strStyle
257			* @return string
258			*/
259			protected function buildContainerDiv(string $strStyle = '') : string
260			{
261			if (strpos($strStyle, 'float') === false) {
262			$strStyle = 'float: left; ' . $strStyle;
263			}
264			$strWidth = ($this->oParent ? $this->oParent->getColWidth($this->iCol) : '');
265			if (!empty($strWidth)) {
266			$strStyle = rtrim($strStyle, '; ');
267			$strStyle .= '; width: ' . $strWidth . ';';
268			}
269			$strHTML = '<div style="' . $strStyle . '">';
270
271			return $strHTML;
272			}
273
274			/**
275			* Build the style attribute for the element.
276			* @return string
277			*/
278			protected function buildStyle() : string
279			{
280			$strStyle = '';
281			if ($this->aStyle != null) {
282			$strStyle = ' style="';
283			foreach ($this->aStyle as $strName => $strValue) {
284			$strStyle .= ' ' . $strName . ': ' . $strValue . ';';
285			}
286			$strStyle .= '"';
287			}
288			return $strStyle;
289			}
290
291			/**
292			* Build all defined attributes for the element.
293			* @return string
294			*/
295			protected function buildAttributes() : string
296			{
297			$strAttrib = '';
298			if ($this->aAttrib != null) {
299			foreach ($this->aAttrib as $strName => $strValue) {
300			$strAttrib .= ' ' . $strName;
301			if (strlen($strValue) > 0) {
302			$strAttrib .= '="' . $strValue . '"';
303			}
304			}
305			}
306			return $strAttrib;
307			}
308
309			/**
310			* Build the markup for the value attribute.
311			* Retrieve value for the element from the FormData.
312			* @return string Empty string if no value set, complete attribute if set
313			*/
314			protected function buildValue() : string
315			{
316			$strHTML = '';
317			$strValue = $this->oFG->getData()->getValue($this->strName);
318
319			if ($this->oFlags->isSet(FormFlags::TRIM)) {
320			$strValue = trim($strValue);
321			}
322			if (!$this->oFlags->isSet(FormFlags::NO_ZERO) \|\| ($strValue != 0 && $strValue != '0')) {
323			$strHTML = ' value="' . str_replace('"', '"', $strValue) . '"';
324			}
325			return $strHTML;
326			}
327
328			/**
329			* Build the markup for the class attribute.
330			* @return string Empty string if no class set, complete attribute if set
331			*/
332			protected function buildClass() : string
333			{
334			$strClass = '';
335			if (!empty($this->strClass)) {
336			$strClass .= ' class="' . $this->strClass . '"';
337			}
338			return $strClass;
339			}
340
341			/**
342			* Build the markup for the ID attribute.
343			* @return string Empty string if no id set, complete attribute if set
344			*/
345			protected function buildID() : string
346			{
347			$strID = '';
348			if (!empty($this->strID)) {
349			$strID .= ' id="' . $this->strID . '"';
350			}
351			return $strID;
352			}
353
354			/**
355			* Build the markup for the tabindex attribute.
356			* @return string Empty string if $iTabindex = 0, complete attribute if set
357			*/
358			protected function buildTabindex() : string
359			{
360			$strTabindex = '';
361			if ($this->iTabindex > 0) {
362			$strTabindex = ' tabindex="' . $this->iTabindex . '"';
363			}
364			return $strTabindex;
365			}
366
367			/**
368			* Parse a given style attribute into the components it contains.
369			* @param string $strStyle
370			*/
371			protected function parseStyle($strStyle) : void
372			{
373			if ($this->aStyle === null) {
374			$this->aStyle = array();
375			}
376			$aStyles = explode(';', trim($strStyle));
377			foreach ($aStyles as $strStyleDef) {
378			$aStyleDef = explode(':', trim($strStyleDef));
379			if (count($aStyleDef) == 2) {
380			$strName = trim($aStyleDef[0]);
381			$strValue = str_replace(';', '', $aStyleDef[1]);
382			$this->aStyle[$strName] = trim($strValue);
383			}
384			}
385			}
386
387			/**
388			* Get the requested attribute.
389			* @param string $strName
390			* @return string\|NULL return null, if attribute not set
391			*/
392			protected function getAttribute(string $strName) : ?string
393			{
394			return ($this->aAttrib && isset($this->aAttrib[$strName])) ? $this->aAttrib[$strName] : null;
395			}
396			}
397
398

Stefanius67 / Formgenerator

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FormElement::__construct() A

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