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-rw-r--r--includes/htmlform/HTMLAutoCompleteSelectField.php165
1 files changed, 165 insertions, 0 deletions
diff --git a/includes/htmlform/HTMLAutoCompleteSelectField.php b/includes/htmlform/HTMLAutoCompleteSelectField.php
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+<?php
+
+/**
+ * Text field for selecting a value from a large list of possible values, with
+ * auto-completion and optionally with a select dropdown for selecting common
+ * options.
+ *
+ * If one of 'options-messages', 'options', or 'options-message' is provided
+ * and non-empty, the select dropdown will be shown. An 'other' key will be
+ * appended using message 'htmlform-selectorother-other' if not already
+ * present.
+ *
+ * Besides the parameters recognized by HTMLTextField, the following are
+ * recognized:
+ * options-messages - As for HTMLSelectField
+ * options - As for HTMLSelectField
+ * options-message - As for HTMLSelectField
+ * autocomplete - Associative array mapping display text to values.
+ * autocomplete-messages - Like autocomplete, but keys are message names.
+ * require-match - Boolean, if true the value must be in the options or the
+ * autocomplete.
+ * other-message - Message to use instead of htmlform-selectorother-other for
+ * the 'other' message.
+ * other - Raw text to use for the 'other' message
+ *
+ */
+class HTMLAutoCompleteSelectField extends HTMLTextField {
+ protected $autocomplete = array();
+
+ function __construct( $params ) {
+ $params += array(
+ 'require-match' => false,
+ );
+
+ parent::__construct( $params );
+
+ if ( array_key_exists( 'autocomplete-messages', $this->mParams ) ) {
+ foreach ( $this->mParams['autocomplete-messages'] as $key => $value ) {
+ $key = $this->msg( $key )->plain();
+ $this->autocomplete[$key] = strval( $value );
+ }
+ } elseif ( array_key_exists( 'autocomplete', $this->mParams ) ) {
+ foreach ( $this->mParams['autocomplete'] as $key => $value ) {
+ $this->autocomplete[$key] = strval( $value );
+ }
+ }
+ if ( !is_array( $this->autocomplete ) || !$this->autocomplete ) {
+ throw new MWException( 'HTMLAutoCompleteSelectField called without any autocompletions' );
+ }
+
+ $this->getOptions();
+ if ( $this->mOptions && !in_array( 'other', $this->mOptions, true ) ) {
+ if ( isset( $params['other-message'] ) ) {
+ $msg = wfMessage( $params['other-message'] )->text();
+ } elseif ( isset( $params['other'] ) ) {
+ $msg = $params['other'];
+ } else {
+ $msg = wfMessage( 'htmlform-selectorother-other' )->text();
+ }
+ $this->mOptions[$msg] = 'other';
+ }
+ }
+
+ function loadDataFromRequest( $request ) {
+ if ( $request->getCheck( $this->mName ) ) {
+ $val = $request->getText( $this->mName . '-select', 'other' );
+
+ if ( $val === 'other' ) {
+ $val = $request->getText( $this->mName );
+ if ( isset( $this->autocomplete[$val] ) ) {
+ $val = $this->autocomplete[$val];
+ }
+ }
+
+ return $val;
+ } else {
+ return $this->getDefault();
+ }
+ }
+
+ function validate( $value, $alldata ) {
+ $p = parent::validate( $value, $alldata );
+
+ if ( $p !== true ) {
+ return $p;
+ }
+
+ $validOptions = HTMLFormField::flattenOptions( $this->getOptions() );
+
+ if ( in_array( strval( $value ), $validOptions, true ) ) {
+ return true;
+ } elseif ( in_array( strval( $value ), $this->autocomplete, true ) ) {
+ return true;
+ } elseif ( $this->mParams['require-match'] ) {
+ return $this->msg( 'htmlform-select-badoption' )->parse();
+ }
+
+ return true;
+ }
+
+ function getAttributes( array $list ) {
+ $attribs = array(
+ 'type' => 'text',
+ 'data-autocomplete' => FormatJson::encode( array_keys( $this->autocomplete ) ),
+ ) + parent::getAttributes( $list );
+
+ if ( $this->getOptions() ) {
+ $attribs['data-hide-if'] = FormatJson::encode(
+ array( '!==', $this->mName . '-select', 'other' )
+ );
+ }
+
+ return $attribs;
+ }
+
+ function getInputHTML( $value ) {
+ $oldClass = $this->mClass;
+ $this->mClass = (array)$this->mClass;
+
+ $valInSelect = false;
+ $ret = '';
+
+ if ( $this->getOptions() ) {
+ if ( $value !== false ) {
+ $value = strval( $value );
+ $valInSelect = in_array(
+ $value, HTMLFormField::flattenOptions( $this->getOptions() ), true
+ );
+ }
+
+ $selected = $valInSelect ? $value : 'other';
+ $select = new XmlSelect( $this->mName . '-select', $this->mID . '-select', $selected );
+ $select->addOptions( $this->getOptions() );
+ $select->setAttribute( 'class', 'mw-htmlform-select-or-other' );
+
+ if ( !empty( $this->mParams['disabled'] ) ) {
+ $select->setAttribute( 'disabled', 'disabled' );
+ }
+
+ if ( isset( $this->mParams['tabindex'] ) ) {
+ $select->setAttribute( 'tabindex', $this->mParams['tabindex'] );
+ }
+
+ $ret = $select->getHTML() . "<br />\n";
+
+ $this->mClass[] = 'mw-htmlform-hide-if';
+ }
+
+ if ( $valInSelect ) {
+ $value = '';
+ } else {
+ $key = array_search( strval( $value ), $this->autocomplete, true );
+ if ( $key !== false ) {
+ $value = $key;
+ }
+ }
+
+ $this->mClass[] = 'mw-htmlform-autocomplete';
+ $ret .= parent::getInputHTML( $valInSelect ? '' : $value );
+ $this->mClass = $oldClass;
+
+ return $ret;
+ }
+
+}