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<?php |
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namespace Sunnysideup\SelectedColourPicker\ViewableData; |
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use SilverStripe\Core\Convert; |
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use SilverStripe\Forms\LiteralField; |
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use SilverStripe\ORM\FieldType\DBField; |
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use SilverStripe\View\ViewableData; |
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use Sunnysideup\SelectedColourPicker\Model\Fields\DBColour; |
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class SelectedColourPickerFormFieldSwatches extends ViewableData |
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{ |
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public static function get_swatches_field(string $name, ?string $value, array $colours, bool $isBackgroundColour): LiteralField |
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{ |
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return LiteralField::create( |
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'SwatchesFor' . $name, |
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self::get_swatches_html($name, $value, $colours, $isBackgroundColour) |
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); |
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} |
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public static function colour_and_background_swatch(string $colour, string $bgColour, ?bool $asHTML = true) |
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{ |
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$html = '<span style="color: ' . $colour . '!important; background-color: ' . $bgColour . '!important; padding: 4px; width: auto; text-align: center; border-radius: 4px; display: inline-block;">example</span>'; |
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if ($asHTML) { |
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return DBField::create_field('HTMLText', $html); |
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} |
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} |
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public static function get_swatches_html(string $name, ?string $value, array $colours, bool $isBackgroundColour): string |
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{ |
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$options = static::get_swatches_field_inner((string) $value, (array) $colours, (bool) $isBackgroundColour); |
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$id = $name . rand(0, 99999999999); |
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$js = Convert::raw2att('document.querySelector("#' . $id . '").style.display="block";'); |
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return ' |
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<div class="field ' . $name . '-class"> |
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<p> |
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Current Value: ' . ($colours[$value] ?? $value) . ', ' . $value . ' |
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<a onclick="' . $js . '" style="cursor: pointer;"><u>show available colours</u></a> |
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</p> |
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<div style="display: none" id="' . $id . '">' . implode('', $options) . '<hr style="clear: both; " /></div> |
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</div>' |
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; |
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} |
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public static function hex_invert(string $color): string |
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{ |
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$color = trim($color); |
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$prependHash = false; |
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if (false !== strpos($color, '#')) { |
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$prependHash = true; |
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$color = str_replace('#', '', $color); |
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} |
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$len = strlen($color); |
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if (3 === $len || 6 === $len || 8 === $len) { |
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if (8 === $len) { |
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$color = substr($color, 0, 6); |
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} |
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if (3 === $len) { |
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$color = preg_replace('#(.)(.)(.)#', '\\1\\1\\2\\2\\3\\3', $color); |
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} |
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} else { |
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throw new \Exception("Invalid hex length ({$len}). Length must be 3 or 6 characters - colour is" . $color); |
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} |
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if (! preg_match('#^[a-f0-9]{6}$#i', $color)) { |
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throw new \Exception(sprintf('Invalid hex string #%s', htmlspecialchars($color, ENT_QUOTES))); |
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} |
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$r = dechex(255 - hexdec(substr($color, 0, 2))); |
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$r = (strlen($r) > 1) ? $r : '0' . $r; |
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$g = dechex(255 - hexdec(substr($color, 2, 2))); |
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$g = (strlen($g) > 1) ? $g : '0' . $g; |
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$b = dechex(255 - hexdec(substr($color, 4, 2))); |
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$b = (strlen($b) > 1) ? $b : '0' . $b; |
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return ($prependHash ? '#' : '') . $r . $g . $b; |
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} |
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protected static function get_swatches_field_inner(string $value, array $colours, bool $isBackgroundColour): array |
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{ |
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$value = DBColour::check_colour($value, $isBackgroundColour); |
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$ids = []; |
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foreach ($colours as $colour => $name) { |
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$invertColour = self::hex_invert($colour); |
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if ($isBackgroundColour) { |
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$styleA = 'background-color: ' . $colour . '; color: ' . $invertColour . '; '; |
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} else { |
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$styleA = 'color: ' . $colour . '; background-color: ' . $invertColour . ';'; |
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} |
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$currentStyle = 'border: 4px solid transparent;'; |
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if ($colour === $value) { |
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$currentStyle = 'border: 4px solid red!important; border-radius: 0!important; font-weight: strong!important;'; |
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} |
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$ids[$colour] = ' |
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<div |
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style="float: left; margin-right: 10px; margin-bottom: 10px; width: auto; border-radius: 30px; font-size: 12px; overflow: hidden; ' . $currentStyle . '" |
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onMouseOver="this.style.borderRadius=\'0px\'" |
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onMouseOut="this.style.borderRadius=\'30px\'" |
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> |
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<span style=" display: block; padding: 5px 15px; text-align: center; ' . $styleA . '"> |
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' . $name . ' (' . $colour . ') |
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</span> |
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</div> |
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'; |
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} |
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return $ids; |
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} |
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} |
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sunnysideup /
silverstripe-selected-colour-picker
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