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<?php
/**
* File holding the NavbarHorizontal class
*
* This file is part of the MediaWiki skin Chameleon.
*
* @copyright 2013 - 2017, Stephan Gambke
* @license GNU General Public License, version 3 (or any later version)
*
* The Chameleon skin is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* The Chameleon skin is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @file
* @ingroup Skins
*/
namespace Skins\Chameleon\Components;
use DOMElement;
use Skins\Chameleon\IdRegistry;
/**
* The NavbarHorizontal class.
*
* A horizontal navbar containing the sidebar items.
* Does not include standard items (toolbox, search, language links). They need
* to be added to the page elsewhere
*
* The navbar is a list of lists wrapped in a nav element: <nav
* role="navigation" id="p-navbar" >
*
* @author Stephan Gambke
* @since 1.0
* @ingroup Skins
*/
class NavbarHorizontal extends Component {
private $mHtml = null;
private $htmlId = null;
/**
* Builds the HTML code for this component
*
* @return String the HTML code
*/
public function getHtml() {
if ( $this->mHtml === null ) {
$this->buildHtml();
}
return $this->mHtml;
}
/**
*
*/
protected function buildHtml() {
if ( $this->getDomElement() === null ) {
$this->mHtml = '';
return;
}
$this->mHtml =
$this->buildFixedNavBarIfRequested() .
$this->buildNavBarOpeningTags() .
$this->buildNavBarComponents() .
$this->buildNavBarClosingTags();
}
/**
*
*/
protected function buildFixedNavBarIfRequested() {
// if a fixed navbar is requested
if ( filter_var( $this->getDomElement()->getAttribute( 'fixed' ), FILTER_VALIDATE_BOOLEAN ) === true ||
$this->getDomElement()->getAttribute( 'position' ) === 'fixed'
) {
// first build the actual navbar and set a class so it will be fixed
$this->getDomElement()->setAttribute( 'fixed', '0' );
$this->getDomElement()->setAttribute( 'position', '' );
$realNav = new self( $this->getSkinTemplate(), $this->getDomElement(), $this->getIndent() );
$realNav->setClasses( $this->getClassString() . ' navbar-fixed-top' );
// then add an invisible copy of the nav bar that will act as a spacer
$this->addClasses( 'navbar-static-top invisible' );
return $realNav->getHtml();
} else {
return '';
}
}
/**
* @return string
*/
protected function buildNavBarOpeningTags() {
$openingTags =
$this->indent() . '<!-- navigation bar -->' .
$this->indent() . \Html::openElement( 'nav', array(
'class' => 'navbar navbar-default p-navbar ' . $this->getClassString(),
'role' => 'navigation',
'id' => $this->getHtmlId()
)
) .
$this->indent( 1 ) . '<div class="container-fluid">';
$this->indent( 1 );
return $openingTags;
}
/**
* @return string
*/
private function getHtmlId() {
if ( $this->htmlId === null ) {
$this->htmlId = IdRegistry::getRegistry()->getId( 'mw-navigation' );
}
return $this->htmlId;
}
/**
*
*/
protected function buildNavBarComponents() {
$elements = $this->buildNavBarElementsFromDomTree();
if ( !empty( $elements[ 'right' ] ) ) {
$elements[ 'left' ][ ] =
$this->indent( 1 ) . '<div class="navbar-right-aligned">' .
implode( $elements[ 'right' ] ) .
$this->indent() . '</div> <!-- navbar-right-aligned -->';
$this->indent( -1 );
}
return
$this->buildHead( $elements[ 'head' ] ) .
$this->buildTail( $elements[ 'left' ] );
}
/**
* @return string[][]
*/
protected function buildNavBarElementsFromDomTree() {
$elements = array(
'head' => array(),
'left' => array(),
'right' => array(),
);
/** @var \DOMElement[] $children */
$children = $this->getDomElement()->hasChildNodes() ? $this->getDomElement()->childNodes : array();
// add components
foreach ( $children as $node ) {
$this->buildAndCollectNavBarElementFromDomElement( $node, $elements );
}
return $elements;
}
/**
* @param DOMElement $node
* @param $elements
*/
protected function buildAndCollectNavBarElementFromDomElement( $node, &$elements ) {
if ( $node instanceof DOMElement && $node->tagName === 'component' && $node->hasAttribute( 'type' ) ) {
$position = $node->getAttribute( 'position' );
if ( !array_key_exists( $position, $elements ) ) {
$position = 'left';
}
$indentation = ( $position === 'right' ) ? 2 : 1;
$this->indent( $indentation );
$html = $this->buildNavBarElementFromDomElement( $node );
$this->indent( -$indentation );
$elements[ $position ][ ] = $html;
// } else {
// TODO: Warning? Error?
}
}
/**
* @param \DomElement $node
*
* @return string
*/
protected function buildNavBarElementFromDomElement( $node ) {
return $this->getSkin()->getComponentFactory()->getComponent( $node, $this->getIndent() )->getHtml();
}
/**
* @param string[] $headElements
*
* @return string
*/
protected function buildHead( $headElements ) {
$head =
$this->indent() . "<div class=\"navbar-header\">\n" .
$this->indent( 1 ) . "<button type=\"button\" class=\"navbar-toggle collapsed\" data-toggle=\"collapse\" data-target=\"#" . $this->getHtmlId() . "-collapse\">" .
$this->indent( 1 ) . "<span class=\"sr-only\">Toggle navigation</span>" .
$this->indent() . str_repeat( "<span class=\"icon-bar\"></span>", 3 ) .
$this->indent( -1 ) . "</button>\n" .
implode( '', $headElements ) . "\n" .
$this->indent( -1 ) . "</div>\n";
return $head;
}
/**
* @param string[] $tailElements
*
* @return string
*/
protected function buildTail( $tailElements ) {
return
$this->indent() . '<div class="collapse navbar-collapse" id="' . $this->getHtmlId() . '-collapse">' .
implode( '', $tailElements ) .
$this->indent() . '</div><!-- /.navbar-collapse -->';
}
/**
* @return string
*/
protected function buildNavBarClosingTags() {
return
$this->indent( -1 ) . '</div>' .
$this->indent( -1 ) . '</nav>' . "\n";
}
}
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