294 lines
9.6 KiB
PHP
294 lines
9.6 KiB
PHP
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<?php
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/**
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* Utility class for handling border properties.
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* Only works with properties stored in an array as delivered from
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* class cssimportnew, e.g. from method getPropertiesForElement().
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*
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* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
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* @author LarsDW223
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*/
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/**
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* Class cssborder.
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*
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* @package CSS\CSSAttributeSelector
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*/
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class cssborder {
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static public function getWidthShorthandValues ($value, &$top, &$right, &$bottom, &$left) {
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$top = NULL;
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$right = NULL;
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$bottom = NULL;
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$left = NULL;
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$values = preg_split ('/\s+/', $value);
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switch (count($values)) {
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case 1:
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$top = $values [0];
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$bottom = $values [0];
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$right = $values [0];
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$left = $values [0];
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break;
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case 2:
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$top = $values [0];
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$bottom = $values [0];
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$right = $values [1];
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$left = $values [1];
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break;
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case 3:
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$top = $values [0];
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$right = $values [1];
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$left = $values [1];
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$bottom = $values [2];
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break;
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case 4:
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default:
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$top = $values [0];
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$right = $values [1];
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$bottom = $values [2];
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$left = $values [3];
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break;
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}
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}
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static public function getShorthandValues ($value, &$width, &$style, &$color) {
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$width = NULL;
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$style = NULL;
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$color = NULL;
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if (empty($value)) {
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return;
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}
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if ($value == 'initial' || $value == 'inherit') {
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$width = $value;
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$style = $value;
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$color = $value;
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return;
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}
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$values = preg_split ('/\s+/', $value);
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$index = 0;
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$border_width_set = false;
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$border_style_set = false;
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$border_color_set = false;
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while ( $index < 3 ) {
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if ( $border_width_set === false ) {
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switch ($values [$index]) {
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case 'thin':
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case 'medium':
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case 'thick':
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$width = $values [$index];
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$index++;
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break;
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default:
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$unit = substr ($values [$index], -2);
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if ( ctype_digit($values [$index]) ||
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$unit == 'px' ||
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$unit == 'pt' ||
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$unit == 'cm' ) {
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$width = $values [$index];
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$index++;
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} else {
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// There is no default value? So leave it unset.
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}
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break;
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}
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$border_width_set = true;
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continue;
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}
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if ( $border_style_set === false ) {
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switch ($values [$index]) {
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case 'none':
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case 'hidden':
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case 'dotted':
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case 'dashed':
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case 'solid':
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case 'double':
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case 'groove':
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case 'ridge':
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case 'inset':
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case 'outset':
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case 'initial':
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case 'inherit':
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$style = $values [$index];
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$index++;
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break;
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}
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$border_style_set = true;
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continue;
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}
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if ( $border_color_set === false ) {
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if (!empty($values [$index])) {
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$color = $values [$index];
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}
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// This is the last value.
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break;
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}
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}
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}
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/**
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* The function checks if this atrribute selector matches the
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* attributes given in $attributes as key - value pairs.
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*
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* @param string $attributes String containing the selector
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* @return boolean
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*/
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static public function normalize (array &$properties) {
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$border_sides = array ('border-left', 'border-right', 'border-top', 'border-bottom');
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$bl_width = '0px';
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$br_width = '0px';
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$bb_width = '0px';
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$bt_width = '0px';
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$bl_style = 'none';
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$br_style = 'none';
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$bb_style = 'none';
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$bt_style = 'none';
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$bl_color = NULL;
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$br_color = NULL;
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$bb_color = NULL;
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$bt_color = NULL;
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if (!empty($properties ['border'])) {
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$width = NULL;
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$style = NULL;
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$color = NULL;
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self::getShorthandValues ($properties ['border'], $width, $style, $color);
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if (!empty($width)) {
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$bl_width = $width;
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$br_width = $width;
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$bb_width = $width;
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$bt_width = $width;
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}
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if (!empty($style)) {
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$bl_style = $style;
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$br_style = $style;
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$bb_style = $style;
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$bt_style = $style;
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}
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if (!empty($color)) {
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$bl_color = $color;
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$br_color = $color;
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$bb_color = $color;
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$bt_color = $color;
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}
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unset ($properties ['border']);
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}
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if (!empty($properties ['border-left'])) {
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$width = NULL;
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$style = NULL;
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$color = NULL;
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self::getShorthandValues ($properties ['border-left'], $width, $style, $color);
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if (!empty($width)) {
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$bl_width = $width;
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}
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if (!empty($style)) {
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$bl_style = $style;
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}
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if (!empty($color)) {
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$bl_color = $color;
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}
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unset ($properties ['border-left']);
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}
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if (!empty($properties ['border-right'])) {
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$width = NULL;
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$style = NULL;
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$color = NULL;
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self::getShorthandValues ($properties ['border-right'], $width, $style, $color);
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if (!empty($width)) {
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$br_width = $width;
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}
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if (!empty($style)) {
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$br_style = $style;
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}
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if (!empty($color)) {
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$br_color = $color;
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}
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unset ($properties ['border-right']);
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}
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if (!empty($properties ['border-top'])) {
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$width = NULL;
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$style = NULL;
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$color = NULL;
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self::getShorthandValues ($properties ['border-top'], $width, $style, $color);
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if (!empty($width)) {
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$bt_width = $width;
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}
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if (!empty($style)) {
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$bt_style = $style;
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}
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if (!empty($color)) {
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$bt_color = $color;
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}
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unset ($properties ['border-top']);
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}
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if (!empty($properties ['border-bottom'])) {
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$width = NULL;
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$style = NULL;
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$color = NULL;
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self::getShorthandValues ($properties ['border-bottom'], $width, $style, $color);
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if (!empty($width)) {
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$bb_width = $width;
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}
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if (!empty($style)) {
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$bb_style = $style;
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}
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if (!empty($color)) {
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$bb_color = $color;
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}
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unset ($properties ['border-bottom']);
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}
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if (!empty($properties ['border-width'])) {
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$top = NULL;
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$right = NULL;
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$bottom = NULL;
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$left = NULL;
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self::getWidthShorthandValues ($properties ['border-width'], $top, $right, $bottom, $left);
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if (!empty($top)) {
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$bt_width = $top;
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}
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if (!empty($right)) {
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$br_width = $right;
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}
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if (!empty($bottom)) {
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$bb_width = $bottom;
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}
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if (!empty($left)) {
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$bl_width = $left;
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}
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unset ($properties ['border-width']);
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}
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// Now normalize and minimize the collected properties values
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// Re-assemble border properties to per side shorthand.
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if (!empty($bt_width) || !empty($bt_style) || !empty($bt_color)) {
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$properties ['border-top'] = $bt_width.' '.$bt_style.' '.$bt_color;
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}
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if (!empty($br_width) || !empty($br_style) || !empty($br_color)) {
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$properties ['border-right'] = $br_width.' '.$br_style.' '.$br_color;
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}
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if (!empty($bb_width) || !empty($bb_style) || !empty($bb_color)) {
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$properties ['border-bottom'] = $bb_width.' '.$bb_style.' '.$bb_color;
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}
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if (!empty($bl_width) || !empty($bl_style) || !empty($bl_color)) {
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$properties ['border-left'] = $bl_width.' '.$bl_style.' '.$bl_color;
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}
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// If all sides are the same we can put them all together as a single border shorthand
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if ($properties ['border-top'] == $properties ['border-right'] &&
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$properties ['border-top'] == $properties ['border-bottom'] &&
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$properties ['border-top'] == $properties ['border-left']) {
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$properties ['border'] = $properties ['border-top'];
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unset ($properties ['border-top']);
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unset ($properties ['border-right']);
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unset ($properties ['border-bottom']);
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unset ($properties ['border-left']);
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}
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}
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}
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