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EPub.NCX.php
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EPub.NCX.php
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<?php
/**
* ePub NCX file structure
*
* @author A. Grandt <[email protected]>
* @copyright 2009-2012 A. Grandt
* @license GNU LGPL, Attribution required for commercial implementations, requested for everything else.
* @version 1.00
*/
class Ncx {
const VERSION = 1.00;
const MIMETYPE = "application/x-dtbncx+xml";
private $navMap = NULL;
private $uid = NULL;
private $meta = array();
private $docTitle = NULL;
private $docAuthor = NULL;
/**
* Class constructor.
*
* @return void
*/
function __construct($uid = NULL, $docTitle = NULL, $docAuthor = NULL) {
$this->navMap = new NavMap();
$this->setUid($uid);
$this->setDocTitle($docTitle);
$this->setDocAuthor($docAuthor);
}
/**
* Class destructor
*
* @return void
*/
function __destruct() {
unset($this->navMap, $this->uid, $this->docTitle, $this->docAuthor);
}
/**
*
* Enter description here ...
*
* @param unknown_type $uid
*/
function setUid($uid) {
$this->uid = is_string($uid) ? trim($uid) : NULL;
}
/**
*
* Enter description here ...
*
* @param unknown_type $docTitle
*/
function setDocTitle($docTitle) {
$this->docTitle = is_string($docTitle) ? trim($docTitle) : NULL;
}
/**
*
* Enter description here ...
*
* @param unknown_type $docAuthor
*/
function setDocAuthor($docAuthor) {
$this->docAuthor = is_string($docAuthor) ? trim($docAuthor) : NULL;
}
/**
*
* Enter description here ...
*
* @param unknown_type $navMap
*/
function setNavMap($navMap) {
if ($navMap != NULL && is_object($navMap) && get_class($navMap) === "NavMap") {
$this->navMap = $navMap;
}
}
/**
*
* Enter description here ...
*
* @return NULL
*/
function getNavMap() {
return $this->navMap;
}
/**
*
* Enter description here ...
*
* @param unknown_type $name
* @param unknown_type $content
*/
function addMetaEntry($name, $content) {
$name = is_string($name) ? trim($name) : NULL;
$content = is_string($content) ? trim($content) : NULL;
if ($name != NULL && $content != NULL) {
$this->meta[] = array($name => $content);
}
}
/**
*
* Enter description here ...
*
* @return string
*/
function finalize() {
$nav = $this->navMap->finalize();
$ncx = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
. "<!DOCTYPE ncx PUBLIC \"-//NISO//DTD ncx 2005-1//EN\"\n"
. " \"http://www.daisy.org/z3986/2005/ncx-2005-1.dtd\">\n"
. "<ncx xmlns=\"http://www.daisy.org/z3986/2005/ncx/\" version=\"2005-1\" xml:lang=\"en\">\n"
. "\t<head>\n"
. "\t\t<meta name=\"dtb:uid\" content=\"" . $this->uid . "\" />\n"
. "\t\t<meta name=\"dtb:depth\" content=\"" . $this->navMap->getNavLevels() . "\" />\n"
. "\t\t<meta name=\"dtb:totalPageCount\" content=\"0\" />\n"
. "\t\t<meta name=\"dtb:maxPageNumber\" content=\"0\" />\n";
if (sizeof($this->meta)) {
foreach ($this->meta as $metaEntry) {
list($name, $content) = each($metaEntry);
$ncx .= "\t\t<meta name=\"" . $name . "\" content=\"" . $content . "\" />\n";
}
}
$ncx .= "\t</head>\n\n\t<docTitle>\n\t\t<text>"
. $this->docTitle
. "</text>\n\t</docTitle>\n\n\t<docAuthor>\n\t\t<text>"
. $this->docAuthor
. "</text>\n\t</docAuthor>\n\n"
. $nav;
return $ncx . "</ncx>\n";
}
}
/**
* ePub NavMap class
*/
class NavMap {
const VERSION = 1.00;
private $navPoints = array();
private $navLevels = 0;
/**
* Class constructor.
*
* @return void
*/
function __construct() {
}
/**
* Class destructor
*
* @return void
*/
function __destruct() {
unset($this->navPoints, $this->navLevels);
}
/**
* Add a navPoint to the root of the NavMap.
*
* @param unknown_type $navPoint
*/
function addNavPoint($navPoint) {
if ($navPoint != NULL && is_object($navPoint) && get_class($navPoint) === "NavPoint") {
$this->navPoints[] = $navPoint;
}
}
/**
* The final max depth for the "dtb:depth" meta attribute
* Only available after finalize have been called.
*
* @return number
*/
function getNavLevels() {
return $this->navLevels+1;
}
/**
* Finalize the navMap, the final max depth for the "dtb:depth" meta attribute can be retrieved with getNavLevels after finalization
*
*/
function finalize() {
$playOrder = 0;
$level = 0;
$this->navLevels = 0;
$nav = "\t<navMap>\n";
if (sizeof($this->navPoints) > 0) {
$this->navLevels++;
foreach ($this->navPoints as $navPoint) {
$retLevel = $navPoint->finalize($nav, $playOrder, 0);
if ($retLevel > $this->navLevels) {
$this->navLevels = $retLevel;
}
}
}
return $nav . "\t</navMap>\n";
}
}
/**
* ePub NavPoint class
*/
class NavPoint {
const VERSION = 1.00;
private $label = NULL;
private $contentSrc = NULL;
private $id = NULL;
private $navPoints = array();
/**
* Class constructor.
*
* All three attributes are mandatory, though if ID is set to null (default) the value will be generated.
*
* @param String $label
* @param String $contentSrc
* @param String $id
* @return void
*/
function __construct($label, $contentSrc, $id = NULL) {
$this->setLabel($label);
$this->setContentSrc($contentSrc);
$this->setId($id);
}
/**
* Class destructor
*
* @return void
*/
function __destruct() {
unset($this->label, $this->contentSrc, $this->id, $this->navPoints);
}
/**
* Set the Text label for the NavPoint.
*
* The label is mandatory.
*
* @param String $label
*/
function setLabel($label) {
$this->label = is_string($label) ? trim($label) : NULL;
}
/**
* Set the src reference for the NavPoint.
*
* The src is mandatory.
*
* @param String $contentSrc
*/
function setContentSrc($contentSrc) {
$this->contentSrc = is_string($contentSrc) ? trim($contentSrc) : NULL;
}
/**
* Set the id for the NavPoint.
*
* The id must be unique, and is mandatory.
*
* @param String $id
*/
function setId($id) {
$this->id = is_string($id) ? trim($id) : NULL;
}
/**
* Add child NavPoints for multi level NavMaps.
*
* @param NavPoint $navPoint
*/
function addNavPoint($navPoint) {
if ($navPoint != NULL && is_object($navPoint) && get_class($navPoint) === "NavPoint") {
$this->navPoints[] = $navPoint;
}
}
/**
*
* Enter description here ...
*
* @param unknown_type $nav
* @param unknown_type $playOrder
* @param unknown_type $level
* @return unknown
*/
function finalize(&$nav = "", &$playOrder = 0, $level = 0) {
$maxLevel = $level;
$playOrder++;
if ($this->id == NULL) {
$this->id = "navpoint-" . $playOrder;
}
$nav .= str_repeat("\t", $level) . "\t\t<navPoint id=\"" . $this->id . "\" playOrder=\"" . $playOrder . "\">\n"
. str_repeat("\t", $level) . "\t\t\t<navLabel>\n"
. str_repeat("\t", $level) . "\t\t\t\t<text>" . $this->label . "</text>\n"
. str_repeat("\t", $level) . "\t\t\t</navLabel>\n"
. str_repeat("\t", $level) . "\t\t\t<content src=\"" . $this->contentSrc . "\" />\n";
if (sizeof($this->navPoints) > 0) {
$maxLevel++;
foreach ($this->navPoints as $navPoint) {
$retLevel = $navPoint->finalize($nav, $playOrder, ($level+1));
if ($retLevel > $maxLevel) {
$maxLevel = $retLevel;
}
}
}
$nav .= str_repeat("\t", $level) . "\t\t</navPoint>\n";
return $maxLevel;
}
}
?>