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<?php |
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declare(strict_types=1); |
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/** |
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* Saito - The Threaded Web Forum |
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* |
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* @copyright Copyright (c) the Saito Project Developers |
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* @link https://github.com/Schlaefer/Saito |
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* @license http://opensource.org/licenses/MIT |
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*/ |
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namespace SpectrumColorpicker\View\Helper; |
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use Cake\View\Helper; |
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use Cake\View\Helper\FormHelper; |
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use Cake\View\Helper\HtmlHelper; |
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/** |
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* @property FormHelper $Form |
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* @property HtmlHelper $Html |
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*/ |
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class SpectrumColorpickerHelper extends Helper |
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{ |
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use Helper\IdGeneratorTrait; |
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public $helpers = ['Form', 'Html', 'Url']; |
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protected $_included = false; |
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/** |
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* Get Spectrum picker |
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* |
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* @param string $field model field name |
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* @param array $options picker options |
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* @return string picker form HTML |
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*/ |
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public function input($field, array $options = []) |
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{ |
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$defaults = [ |
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'color-picker' => [ |
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'allowEmpty' => true, |
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'preferredFormat' => 'hex', |
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'showButtons' => false, |
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'showInput' => true, |
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], |
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'text' => [ |
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'label' => false, |
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'maxlength' => '7', |
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'type' => 'text', |
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], |
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]; |
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foreach (['color-picker', 'text'] as $key) { |
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if (empty($options[$key])) { |
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$options[$key] = []; |
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} |
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$options[$key] += $defaults[$key]; |
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} |
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$html = $this->Form->control($field, $options['text']); |
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$this->_generateJs($field, $options['color-picker']); |
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return $html; |
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} |
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/** |
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* Generate JS for picker |
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* |
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* @param string $field model field name to derive id-HTML-tag |
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* @param array $options Spectrum picker options |
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* @return void |
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*/ |
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protected function _generateJs($field, array $options = []) |
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{ |
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$this->_includeAssets(); |
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$id = $this->_domId($field); |
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$options = json_encode($options); |
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// "hide.spectrum"-event: Spectrum doesn't apply color value if |
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// the dialog is closed by pressing the open button again |
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$js = "$(function() { |
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let el = $('input#{$id}'); |
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el.spectrum({$options}); |
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el.on('hide.spectrum', function(e, color) { e.currentTarget.value = color === null ? '' : '#' + color.toHex(); }); |
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});"; |
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$this->Html->scriptBlock($js, ['block' => 'script']); |
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} |
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/** |
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* Include assets (CSS, JS) |
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* |
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* @return void |
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*/ |
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protected function _includeAssets() |
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{ |
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if ($this->_included) { |
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return; |
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} |
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$this->_included = true; |
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$this->Html->script( |
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'SpectrumColorpicker.spectrum.js', |
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['block' => 'script-head'] |
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); |
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$this->Html->css( |
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'SpectrumColorpicker.spectrum.css', |
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['block' => 'css'] |
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); |
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} |
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} |
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Schlaefer /
Saito
