wiki.techinc.nl/includes/Xml.php
Sam Reed 43dd8dd7e9 Followup r107002
Add a TODO to do this via hook or similar
2012-02-16 02:52:11 +00:00

973 lines
28 KiB
PHP

<?php
/**
* Module of static functions for generating XML
*/
class Xml {
/**
* Format an XML element with given attributes and, optionally, text content.
* Element and attribute names are assumed to be ready for literal inclusion.
* Strings are assumed to not contain XML-illegal characters; special
* characters (<, >, &) are escaped but illegals are not touched.
*
* @param $element String: element name
* @param $attribs Array: Name=>value pairs. Values will be escaped.
* @param $contents String: NULL to make an open tag only; '' for a contentless closed tag (default)
* @param $allowShortTag Bool: whether '' in $contents will result in a contentless closed tag
* @return string
*/
public static function element( $element, $attribs = null, $contents = '', $allowShortTag = true ) {
$out = '<' . $element;
if( !is_null( $attribs ) ) {
$out .= self::expandAttributes( $attribs );
}
if( is_null( $contents ) ) {
$out .= '>';
} else {
if( $allowShortTag && $contents === '' ) {
$out .= ' />';
} else {
$out .= '>' . htmlspecialchars( $contents ) . "</$element>";
}
}
return $out;
}
/**
* Given an array of ('attributename' => 'value'), it generates the code
* to set the XML attributes : attributename="value".
* The values are passed to Sanitizer::encodeAttribute.
* Return null if no attributes given.
* @param $attribs Array of attributes for an XML element
* @return null|string
*/
public static function expandAttributes( $attribs ) {
$out = '';
if( is_null( $attribs ) ) {
return null;
} elseif( is_array( $attribs ) ) {
foreach( $attribs as $name => $val ) {
$out .= " {$name}=\"" . Sanitizer::encodeAttribute( $val ) . '"';
}
return $out;
} else {
throw new MWException( 'Expected attribute array, got something else in ' . __METHOD__ );
}
}
/**
* Format an XML element as with self::element(), but run text through the
* $wgContLang->normalize() validator first to ensure that no invalid UTF-8
* is passed.
*
* @param $element String:
* @param $attribs Array: Name=>value pairs. Values will be escaped.
* @param $contents String: NULL to make an open tag only; '' for a contentless closed tag (default)
* @return string
*/
public static function elementClean( $element, $attribs = array(), $contents = '') {
global $wgContLang;
if( $attribs ) {
$attribs = array_map( array( 'UtfNormal', 'cleanUp' ), $attribs );
}
if( $contents ) {
wfProfileIn( __METHOD__ . '-norm' );
$contents = $wgContLang->normalize( $contents );
wfProfileOut( __METHOD__ . '-norm' );
}
return self::element( $element, $attribs, $contents );
}
/**
* This opens an XML element
*
* @param $element String name of the element
* @param $attribs array of attributes, see Xml::expandAttributes()
* @return string
*/
public static function openElement( $element, $attribs = null ) {
return '<' . $element . self::expandAttributes( $attribs ) . '>';
}
/**
* Shortcut to close an XML element
* @param $element String element name
* @return string
*/
public static function closeElement( $element ) { return "</$element>"; }
/**
* Same as Xml::element(), but does not escape contents. Handy when the
* content you have is already valid xml.
*
* @param $element String element name
* @param $attribs array of attributes
* @param $contents String content of the element
* @return string
*/
public static function tags( $element, $attribs = null, $contents ) {
return self::openElement( $element, $attribs ) . $contents . "</$element>";
}
/**
* Build a drop-down box for selecting a namespace
*
* @param $selected Mixed: Namespace which should be pre-selected
* @param $all Mixed: Value of an item denoting all namespaces, or null to omit
* @param $element_name String: value of the "name" attribute of the select tag
* @param $label String: optional label to add to the field
* @return string
* @deprecated since 1.19
*/
public static function namespaceSelector( $selected = '', $all = null, $element_name = 'namespace', $label = null ) {
wfDeprecated( __METHOD__, '1.19' );
return Html::namespaceSelector( array(
'selected' => $selected,
'all' => $all,
'label' => $label,
), array(
'name' => $element_name,
'id' => 'namespace',
'class' => 'namespaceselector',
) );
}
/**
* Create a date selector
*
* @param $selected Mixed: the month which should be selected, default ''
* @param $allmonths String: value of a special item denoting all month. Null to not include (default)
* @param $id String: Element identifier
* @return String: Html string containing the month selector
*/
public static function monthSelector( $selected = '', $allmonths = null, $id = 'month' ) {
global $wgLang;
$options = array();
if( is_null( $selected ) )
$selected = '';
if( !is_null( $allmonths ) )
$options[] = self::option( wfMsg( 'monthsall' ), $allmonths, $selected === $allmonths );
for( $i = 1; $i < 13; $i++ )
$options[] = self::option( $wgLang->getMonthName( $i ), $i, $selected === $i );
return self::openElement( 'select', array( 'id' => $id, 'name' => 'month', 'class' => 'mw-month-selector' ) )
. implode( "\n", $options )
. self::closeElement( 'select' );
}
/**
* @param $year Integer
* @param $month Integer
* @return string Formatted HTML
*/
public static function dateMenu( $year, $month ) {
# Offset overrides year/month selection
if( $month && $month !== -1 ) {
$encMonth = intval( $month );
} else {
$encMonth = '';
}
if( $year ) {
$encYear = intval( $year );
} elseif( $encMonth ) {
$thisMonth = intval( gmdate( 'n' ) );
$thisYear = intval( gmdate( 'Y' ) );
if( intval($encMonth) > $thisMonth ) {
$thisYear--;
}
$encYear = $thisYear;
} else {
$encYear = '';
}
return Xml::label( wfMsg( 'year' ), 'year' ) . ' '.
Xml::input( 'year', 4, $encYear, array('id' => 'year', 'maxlength' => 4) ) . ' '.
Xml::label( wfMsg( 'month' ), 'month' ) . ' '.
Xml::monthSelector( $encMonth, -1 );
}
/**
* Construct a language selector appropriate for use in a form or preferences
*
* @param string $selected The language code of the selected language
* @param boolean $customisedOnly If true only languages which have some content are listed
* @param string $language The ISO code of the language to display the select list in (optional)
* @return array containing 2 items: label HTML and select list HTML
*/
public static function languageSelector( $selected, $customisedOnly = true, $language = null ) {
global $wgLanguageCode;
// TODO: This should be replaced with a hook or something, from r107002
// If a specific language was requested and CLDR is installed, use it
if ( $language && is_callable( array( 'LanguageNames', 'getNames' ) ) ) {
if ( $customisedOnly ) {
$listType = LanguageNames::LIST_MW_SUPPORTED; // Only pull names that have localisation in MediaWiki
} else {
$listType = LanguageNames::LIST_MW; // Pull all languages that are in Names.php
}
// Retrieve the list of languages in the requested language (via CLDR)
$languages = LanguageNames::getNames(
$language, // Code of the requested language
LanguageNames::FALLBACK_NORMAL, // Use fallback chain
$listType
);
} else {
$languages = Language::getLanguageNames( $customisedOnly );
}
// Make sure the site language is in the list; a custom language code might not have a
// defined name...
if( !array_key_exists( $wgLanguageCode, $languages ) ) {
$languages[$wgLanguageCode] = $wgLanguageCode;
}
ksort( $languages );
/**
* If a bogus value is set, default to the content language.
* Otherwise, no default is selected and the user ends up
* with an Afrikaans interface since it's first in the list.
*/
$selected = isset( $languages[$selected] ) ? $selected : $wgLanguageCode;
$options = "\n";
foreach( $languages as $code => $name ) {
$options .= Xml::option( "$code - $name", $code, ($code == $selected) ) . "\n";
}
return array(
Xml::label( wfMsg('yourlanguage'), 'wpUserLanguage' ),
Xml::tags( 'select',
array( 'id' => 'wpUserLanguage', 'name' => 'wpUserLanguage' ),
$options
)
);
}
/**
* Shortcut to make a span element
* @param $text String content of the element, will be escaped
* @param $class String class name of the span element
* @param $attribs array other attributes
* @return string
*/
public static function span( $text, $class, $attribs = array() ) {
return self::element( 'span', array( 'class' => $class ) + $attribs, $text );
}
/**
* Shortcut to make a specific element with a class attribute
* @param $text string content of the element, will be escaped
* @param $class string class name of the span element
* @param $tag string element name
* @param $attribs array other attributes
* @return string
*/
public static function wrapClass( $text, $class, $tag = 'span', $attribs = array() ) {
return self::tags( $tag, array( 'class' => $class ) + $attribs, $text );
}
/**
* Convenience function to build an HTML text input field
* @param $name String value of the name attribute
* @param $size int value of the size attribute
* @param $value mixed value of the value attribute
* @param $attribs array other attributes
* @return string HTML
*/
public static function input( $name, $size = false, $value = false, $attribs = array() ) {
$attributes = array( 'name' => $name );
if( $size ) {
$attributes['size'] = $size;
}
if( $value !== false ) { // maybe 0
$attributes['value'] = $value;
}
return self::element( 'input', $attributes + $attribs );
}
/**
* Convenience function to build an HTML password input field
* @param $name string value of the name attribute
* @param $size int value of the size attribute
* @param $value mixed value of the value attribute
* @param $attribs array other attributes
* @return string HTML
*/
public static function password( $name, $size = false, $value = false, $attribs = array() ) {
return self::input( $name, $size, $value, array_merge( $attribs, array( 'type' => 'password' ) ) );
}
/**
* Internal function for use in checkboxes and radio buttons and such.
*
* @param $name string
* @param $present bool
*
* @return array
*/
public static function attrib( $name, $present = true ) {
return $present ? array( $name => $name ) : array();
}
/**
* Convenience function to build an HTML checkbox
* @param $name String value of the name attribute
* @param $checked Bool Whether the checkbox is checked or not
* @param $attribs Array other attributes
* @return string HTML
*/
public static function check( $name, $checked = false, $attribs=array() ) {
return self::element( 'input', array_merge(
array(
'name' => $name,
'type' => 'checkbox',
'value' => 1 ),
self::attrib( 'checked', $checked ),
$attribs ) );
}
/**
* Convenience function to build an HTML radio button
* @param $name String value of the name attribute
* @param $value String value of the value attribute
* @param $checked Bool Whether the checkbox is checked or not
* @param $attribs Array other attributes
* @return string HTML
*/
public static function radio( $name, $value, $checked = false, $attribs = array() ) {
return self::element( 'input', array(
'name' => $name,
'type' => 'radio',
'value' => $value ) + self::attrib( 'checked', $checked ) + $attribs );
}
/**
* Convenience function to build an HTML form label
* @param $label String text of the label
* @param $id
* @param $attribs Array an attribute array. This will usuall be
* the same array as is passed to the corresponding input element,
* so this function will cherry-pick appropriate attributes to
* apply to the label as well; only class and title are applied.
* @return string HTML
*/
public static function label( $label, $id, $attribs = array() ) {
$a = array( 'for' => $id );
# FIXME avoid copy pasting below:
if( isset( $attribs['class'] ) ){
$a['class'] = $attribs['class'];
}
if( isset( $attribs['title'] ) ){
$a['title'] = $attribs['title'];
}
return self::element( 'label', $a, $label );
}
/**
* Convenience function to build an HTML text input field with a label
* @param $label String text of the label
* @param $name String value of the name attribute
* @param $id String id of the input
* @param $size Int|Bool value of the size attribute
* @param $value String|Bool value of the value attribute
* @param $attribs array other attributes
* @return string HTML
*/
public static function inputLabel( $label, $name, $id, $size=false, $value=false, $attribs = array() ) {
list( $label, $input ) = self::inputLabelSep( $label, $name, $id, $size, $value, $attribs );
return $label . '&#160;' . $input;
}
/**
* Same as Xml::inputLabel() but return input and label in an array
*
* @param $label String
* @param $name String
* @param $id String
* @param $size Int|Bool
* @param $value String|Bool
* @param $attribs array
*
* @return array
*/
public static function inputLabelSep( $label, $name, $id, $size = false, $value = false, $attribs = array() ) {
return array(
Xml::label( $label, $id, $attribs ),
self::input( $name, $size, $value, array( 'id' => $id ) + $attribs )
);
}
/**
* Convenience function to build an HTML checkbox with a label
*
* @param $label
* @param $name
* @param $id
* @param $checked bool
* @param $attribs array
*
* @return string HTML
*/
public static function checkLabel( $label, $name, $id, $checked = false, $attribs = array() ) {
return self::check( $name, $checked, array( 'id' => $id ) + $attribs ) .
'&#160;' .
self::label( $label, $id, $attribs );
}
/**
* Convenience function to build an HTML radio button with a label
*
* @param $label
* @param $name
* @param $value
* @param $id
* @param $checked bool
* @param $attribs array
*
* @return string HTML
*/
public static function radioLabel( $label, $name, $value, $id, $checked = false, $attribs = array() ) {
return self::radio( $name, $value, $checked, array( 'id' => $id ) + $attribs ) .
'&#160;' .
self::label( $label, $id, $attribs );
}
/**
* Convenience function to build an HTML submit button
* @param $value String: label text for the button
* @param $attribs Array: optional custom attributes
* @return string HTML
*/
public static function submitButton( $value, $attribs = array() ) {
return Html::element( 'input', array( 'type' => 'submit', 'value' => $value ) + $attribs );
}
/**
* Convenience function to build an HTML drop-down list item.
* @param $text String: text for this item
* @param $value String: form submission value; if empty, use text
* @param $selected boolean: if true, will be the default selected item
* @param $attribs array: optional additional HTML attributes
* @return string HTML
*/
public static function option( $text, $value=null, $selected = false,
$attribs = array() ) {
if( !is_null( $value ) ) {
$attribs['value'] = $value;
}
if( $selected ) {
$attribs['selected'] = 'selected';
}
return Html::element( 'option', $attribs, $text );
}
/**
* Build a drop-down box from a textual list.
*
* @param $name Mixed: Name and id for the drop-down
* @param $list Mixed: Correctly formatted text (newline delimited) to be used to generate the options
* @param $other Mixed: Text for the "Other reasons" option
* @param $selected Mixed: Option which should be pre-selected
* @param $class Mixed: CSS classes for the drop-down
* @param $tabindex Mixed: Value of the tabindex attribute
* @return string
*/
public static function listDropDown( $name= '', $list = '', $other = '', $selected = '', $class = '', $tabindex = null ) {
$optgroup = false;
$options = self::option( $other, 'other', $selected === 'other' );
foreach ( explode( "\n", $list ) as $option) {
$value = trim( $option );
if ( $value == '' ) {
continue;
} elseif ( substr( $value, 0, 1) == '*' && substr( $value, 1, 1) != '*' ) {
// A new group is starting ...
$value = trim( substr( $value, 1 ) );
if( $optgroup ) $options .= self::closeElement('optgroup');
$options .= self::openElement( 'optgroup', array( 'label' => $value ) );
$optgroup = true;
} elseif ( substr( $value, 0, 2) == '**' ) {
// groupmember
$value = trim( substr( $value, 2 ) );
$options .= self::option( $value, $value, $selected === $value );
} else {
// groupless reason list
if( $optgroup ) $options .= self::closeElement('optgroup');
$options .= self::option( $value, $value, $selected === $value );
$optgroup = false;
}
}
if( $optgroup ) $options .= self::closeElement('optgroup');
$attribs = array();
if( $name ) {
$attribs['id'] = $name;
$attribs['name'] = $name;
}
if( $class ) {
$attribs['class'] = $class;
}
if( $tabindex ) {
$attribs['tabindex'] = $tabindex;
}
return Xml::openElement( 'select', $attribs )
. "\n"
. $options
. "\n"
. Xml::closeElement( 'select' );
}
/**
* Shortcut for creating fieldsets.
*
* @param $legend string|bool Legend of the fieldset. If evaluates to false, legend is not added.
* @param $content string Pre-escaped content for the fieldset. If false, only open fieldset is returned.
* @param $attribs array Any attributes to fieldset-element.
*
* @return string
*/
public static function fieldset( $legend = false, $content = false, $attribs = array() ) {
$s = Xml::openElement( 'fieldset', $attribs ) . "\n";
if ( $legend ) {
$s .= Xml::element( 'legend', null, $legend ) . "\n";
}
if ( $content !== false ) {
$s .= $content . "\n";
$s .= Xml::closeElement( 'fieldset' ) . "\n";
}
return $s;
}
/**
* Shortcut for creating textareas.
*
* @param $name string The 'name' for the textarea
* @param $content string Content for the textarea
* @param $cols int The number of columns for the textarea
* @param $rows int The number of rows for the textarea
* @param $attribs array Any other attributes for the textarea
*
* @return string
*/
public static function textarea( $name, $content, $cols = 40, $rows = 5, $attribs = array() ) {
return self::element( 'textarea',
array( 'name' => $name,
'id' => $name,
'cols' => $cols,
'rows' => $rows
) + $attribs,
$content, false );
}
/**
* Returns an escaped string suitable for inclusion in a string literal
* for JavaScript source code.
* Illegal control characters are assumed not to be present.
*
* @param $string String to escape
* @return String
*/
public static function escapeJsString( $string ) {
// See ECMA 262 section 7.8.4 for string literal format
$pairs = array(
"\\" => "\\\\",
"\"" => "\\\"",
'\'' => '\\\'',
"\n" => "\\n",
"\r" => "\\r",
# To avoid closing the element or CDATA section
"<" => "\\x3c",
">" => "\\x3e",
# To avoid any complaints about bad entity refs
"&" => "\\x26",
# Work around https://bugzilla.mozilla.org/show_bug.cgi?id=274152
# Encode certain Unicode formatting chars so affected
# versions of Gecko don't misinterpret our strings;
# this is a common problem with Farsi text.
"\xe2\x80\x8c" => "\\u200c", // ZERO WIDTH NON-JOINER
"\xe2\x80\x8d" => "\\u200d", // ZERO WIDTH JOINER
);
return strtr( $string, $pairs );
}
/**
* Encode a variable of unknown type to JavaScript.
* Arrays are converted to JS arrays, objects are converted to JS associative
* arrays (objects). So cast your PHP associative arrays to objects before
* passing them to here.
*
* @param $value
*
* @return string
*/
public static function encodeJsVar( $value ) {
if ( is_bool( $value ) ) {
$s = $value ? 'true' : 'false';
} elseif ( is_null( $value ) ) {
$s = 'null';
} elseif ( is_int( $value ) || is_float( $value ) ) {
$s = strval($value);
} elseif ( is_array( $value ) && // Make sure it's not associative.
array_keys($value) === range( 0, count($value) - 1 ) ||
count($value) == 0
) {
$s = '[';
foreach ( $value as $elt ) {
if ( $s != '[' ) {
$s .= ',';
}
$s .= self::encodeJsVar( $elt );
}
$s .= ']';
} elseif ( $value instanceof XmlJsCode ) {
$s = $value->value;
} elseif ( is_object( $value ) || is_array( $value ) ) {
// Objects and associative arrays
$s = '{';
foreach ( (array)$value as $name => $elt ) {
if ( $s != '{' ) {
$s .= ',';
}
$s .= '"' . self::escapeJsString( $name ) . '":' .
self::encodeJsVar( $elt );
}
$s .= '}';
} else {
$s = '"' . self::escapeJsString( $value ) . '"';
}
return $s;
}
/**
* Create a call to a JavaScript function. The supplied arguments will be
* encoded using Xml::encodeJsVar().
*
* @param $name String The name of the function to call, or a JavaScript expression
* which evaluates to a function object which is called.
* @param $args Array of arguments to pass to the function.
*
* @since 1.17
*
* @return string
*/
public static function encodeJsCall( $name, $args ) {
$s = "$name(";
$first = true;
foreach ( $args as $arg ) {
if ( $first ) {
$first = false;
} else {
$s .= ', ';
}
$s .= Xml::encodeJsVar( $arg );
}
$s .= ");\n";
return $s;
}
/**
* Check if a string is well-formed XML.
* Must include the surrounding tag.
*
* @param $text String: string to test.
* @return bool
*
* @todo Error position reporting return
*/
public static function isWellFormed( $text ) {
$parser = xml_parser_create( "UTF-8" );
# case folding violates XML standard, turn it off
xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, false );
if( !xml_parse( $parser, $text, true ) ) {
//$err = xml_error_string( xml_get_error_code( $parser ) );
//$position = xml_get_current_byte_index( $parser );
//$fragment = $this->extractFragment( $html, $position );
//$this->mXmlError = "$err at byte $position:\n$fragment";
xml_parser_free( $parser );
return false;
}
xml_parser_free( $parser );
return true;
}
/**
* Check if a string is a well-formed XML fragment.
* Wraps fragment in an \<html\> bit and doctype, so it can be a fragment
* and can use HTML named entities.
*
* @param $text String:
* @return bool
*/
public static function isWellFormedXmlFragment( $text ) {
$html =
Sanitizer::hackDocType() .
'<html>' .
$text .
'</html>';
return Xml::isWellFormed( $html );
}
/**
* Replace " > and < with their respective HTML entities ( &quot;,
* &gt;, &lt;)
*
* @param $in String: text that might contain HTML tags.
* @return string Escaped string
*/
public static function escapeTagsOnly( $in ) {
return str_replace(
array( '"', '>', '<' ),
array( '&quot;', '&gt;', '&lt;' ),
$in );
}
/**
* Generate a form (without the opening form element).
* Output optionally includes a submit button.
* @param $fields Array Associative array, key is message corresponding to a description for the field (colon is in the message), value is appropriate input.
* @param $submitLabel String A message containing a label for the submit button.
* @return string HTML form.
*/
public static function buildForm( $fields, $submitLabel = null ) {
$form = '';
$form .= "<table><tbody>";
foreach( $fields as $labelmsg => $input ) {
$id = "mw-$labelmsg";
$form .= Xml::openElement( 'tr', array( 'id' => $id ) );
$form .= Xml::tags( 'td', array('class' => 'mw-label'), wfMsgExt( $labelmsg, array('parseinline') ) );
$form .= Xml::openElement( 'td', array( 'class' => 'mw-input' ) ) . $input . Xml::closeElement( 'td' );
$form .= Xml::closeElement( 'tr' );
}
if( $submitLabel ) {
$form .= Xml::openElement( 'tr' );
$form .= Xml::tags( 'td', array(), '' );
$form .= Xml::openElement( 'td', array( 'class' => 'mw-submit' ) ) . Xml::submitButton( wfMsg( $submitLabel ) ) . Xml::closeElement( 'td' );
$form .= Xml::closeElement( 'tr' );
}
$form .= "</tbody></table>";
return $form;
}
/**
* Build a table of data
* @param $rows array An array of arrays of strings, each to be a row in a table
* @param $attribs array An array of attributes to apply to the table tag [optional]
* @param $headers array An array of strings to use as table headers [optional]
* @return string
*/
public static function buildTable( $rows, $attribs = array(), $headers = null ) {
$s = Xml::openElement( 'table', $attribs );
if ( is_array( $headers ) ) {
$s .= Xml::openElement( 'thead', $attribs );
foreach( $headers as $id => $header ) {
$attribs = array();
if ( is_string( $id ) ) {
$attribs['id'] = $id;
}
$s .= Xml::element( 'th', $attribs, $header );
}
$s .= Xml::closeElement( 'thead' );
}
foreach( $rows as $id => $row ) {
$attribs = array();
if ( is_string( $id ) ) {
$attribs['id'] = $id;
}
$s .= Xml::buildTableRow( $attribs, $row );
}
$s .= Xml::closeElement( 'table' );
return $s;
}
/**
* Build a row for a table
* @param $attribs array An array of attributes to apply to the tr tag
* @param $cells array An array of strings to put in <td>
* @return string
*/
public static function buildTableRow( $attribs, $cells ) {
$s = Xml::openElement( 'tr', $attribs );
foreach( $cells as $id => $cell ) {
$attribs = array();
if ( is_string( $id ) ) {
$attribs['id'] = $id;
}
$s .= Xml::element( 'td', $attribs, $cell );
}
$s .= Xml::closeElement( 'tr' );
return $s;
}
}
class XmlSelect {
protected $options = array();
protected $default = false;
protected $attributes = array();
public function __construct( $name = false, $id = false, $default = false ) {
if ( $name ) {
$this->setAttribute( 'name', $name );
}
if ( $id ) {
$this->setAttribute( 'id', $id );
}
if ( $default !== false ) {
$this->default = $default;
}
}
/**
* @param $default
*/
public function setDefault( $default ) {
$this->default = $default;
}
/**
* @param $name string
* @param $value
*/
public function setAttribute( $name, $value ) {
$this->attributes[$name] = $value;
}
/**
* @param $name
* @return array|null
*/
public function getAttribute( $name ) {
if ( isset( $this->attributes[$name] ) ) {
return $this->attributes[$name];
} else {
return null;
}
}
/**
* @param $name
* @param $value bool
*/
public function addOption( $name, $value = false ) {
// Stab stab stab
$value = ($value !== false) ? $value : $name;
$this->options[] = array( $name => $value );
}
/**
* This accepts an array of form
* label => value
* label => ( label => value, label => value )
*
* @param $options
*/
public function addOptions( $options ) {
$this->options[] = $options;
}
/**
* This accepts an array of form
* label => value
* label => ( label => value, label => value )
*
* @param $options
* @param bool $default
* @return string
*/
static function formatOptions( $options, $default = false ) {
$data = '';
foreach( $options as $label => $value ) {
if ( is_array( $value ) ) {
$contents = self::formatOptions( $value, $default );
$data .= Html::rawElement( 'optgroup', array( 'label' => $label ), $contents ) . "\n";
} else {
$data .= Xml::option( $label, $value, $value === $default ) . "\n";
}
}
return $data;
}
/**
* @return string
*/
public function getHTML() {
$contents = '';
foreach ( $this->options as $options ) {
$contents .= self::formatOptions( $options, $this->default );
}
return Html::rawElement( 'select', $this->attributes, rtrim( $contents ) );
}
}
/**
* A wrapper class which causes Xml::encodeJsVar() and Xml::encodeJsCall() to
* interpret a given string as being a JavaScript expression, instead of string
* data.
*
* Example:
*
* Xml::encodeJsVar( new XmlJsCode( 'a + b' ) );
*
* Returns "a + b".
* @since 1.17
*/
class XmlJsCode {
public $value;
function __construct( $value ) {
$this->value = $value;
}
}