silverstripe-font-awesome/code/formfields/FontAwesomeField.php

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<?php
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namespace SilverStripe\FontAwesome;
use SilverStripe\Forms\TextField;
use SilverStripe\View\Requirements;
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/**
* Class FontAwesomeField
*/
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class FontAwesomeField extends TextField
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{
private static $version = '5.0.8';
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/**
* @return string
*/
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public function Type()
{
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return 'text';
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}
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/**
* @param array $properties
*
* @return mixed
*/
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public function Field($properties = array())
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{
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$this->addExtraClass('form-control icp icp-auto');
// Libraries
Requirements::css('https://use.fontawesome.com/releases/v5.0.8/css/all.css');
Requirements::css(FONT_AWESOME_DIR . '/client/dist/css/lib/fontawesome-iconpicker.min.css');
Requirements::javascript(FONT_AWESOME_DIR . '/client/dist/js/lib/fontawesome-iconpicker.min.js');
// Module
Requirements::css(FONT_AWESOME_DIR . '/client/dist/css/font-awesome-module.css');
Requirements::javascript(FONT_AWESOME_DIR . '/client/dist/js/font-awesome-module.js');
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Requirements::set_force_js_to_bottom(true);
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return parent::Field($properties);
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}
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/**
* @param $validator
*
* @return bool
*/
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public function validate($validator)
{
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if (!empty($this->value) && !preg_match('/^(fas|fa|far|fab) fa-[a-z0-9]+/', $this->value)) {
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$validator->validationError(
$this->name,
'Please enter a valid Font Awesome font name format.',
'validation',
false
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);
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return false;
}
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return true;
}
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}