<?php
/**
* This file contains the DomNodeCssCapable trait.
*
* PHP Version 5.3
*
* @category DOM
* @package Dom
* @author Gonzalo Chumillas <[email protected]>
* @license https://raw.github.com/soloproyectos/core/master/LICENSE BSD 2-Clause License
* @link https://github.com/soloproyectos/core
*/
namespace com\soloproyectos\common\dom;
/**
* DomNodeCssCapable trait.
*
* @category DOM
* @package Dom
* @author Gonzalo Chumillas <[email protected]>
* @license https://raw.github.com/soloproyectos/core/master/LICENSE BSD 2-Clause License
* @link https://github.com/soloproyectos/core
*/
trait DomNodeCssCapable
{
/**
* List of elements.
*
* @return array of DOMElement
*/
abstract public function elements();
/**
* Gets or sets a CSS attribute.
*
* @param string $name CSS attribute name
* @param string $value CSS attribute value (not required)
*
* @return DomNode|string
*/
public function css($name, $value = null)
{
$name = trim($name);
if (func_num_args() > 1) {
return $this->_setCssAttribute($name, $value);
}
return $this->_getCssAttribute($name);
}
/**
* Has the node a CSS attribute?
*
* @param string $name CSS attribute name
*
* @return boolean
*/
public function hasCss($name)
{
$name = trim($name);
foreach ($this->elements() as $element) {
$cssMap = $this->_getCssAttributeMap($element);
$name = strtolower($name);
return array_key_exists($name, $cssMap);
}
return false;
}
/**
* Gets a CSS atribute.
*
* @param string $name Attribute name
*
* @return string
*/
private function _getCssAttribute($name)
{
foreach ($this->elements() as $element) {
$cssMap = $this->_getCssAttributeMap($element);
$name = strtolower($name);
return array_key_exists($name, $cssMap)? $cssMap[$name] : "";
}
return "";
}
/**
* Sets a CSS attribute.
*
* @param string $name CSS attribute name
* @param string $value CSS attribute value
*
* @return DomNode
*/
private function _setCssAttribute($name, $value)
{
foreach ($this->elements() as $element) {
$cssMap = $this->_getCssAttributeMap($element);
$cssMap[$name] = $value;
$this->_setCssAttributeMap($element, $cssMap);
}
return $this;
}
/**
* Gets the list of CSS attributes.
*
* @param DOMElement $element DOM element
*
* @return array of CSS attributes
*/
private function _getCssAttributeMap($element)
{
$ret = array();
$style = $element->getAttribute("style");
if (strlen($style) > 0) {
$cssMap = explode(";", $style);
foreach ($cssMap as $cssAttr) {
$item = explode(":", $cssAttr);
$key = count($item) > 0? trim($item[0]): "";
$value = count($item) > 1? trim($item[1]): "";
if (strlen($key) > 0 && strlen($value) > 0) {
$ret[$key] = $value;
}
}
}
return $ret;
}
/**
* Sets a list of CSS attributes.
*
* @param DOMElement $element DOM element
* @param array $cssMap List of attributes
*
* @return void
*/
private function _setCssAttributeMap($element, $cssMap)
{
$attrs = array();
foreach ($cssMap as $key => $value) {
if (strlen($key) > 0) {
array_push($attrs, strtolower($key) . ": $value");
}
}
if (count($attrs) > 0) {
$element->setAttribute("style", implode("; ", $attrs));
}
}
}
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