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kitodo-presentation
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Recognize multi-volume works and logical child elements again

This commit is contained in:
Sebastian Meyer 2012-08-10 08:10:51 +02:00
parent 86f0f8eb7e
commit 87429b20d8
1 changed files with 59 additions and 60 deletions
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119
dlf/common/class.tx_dlf_document.php
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@ -409,6 +409,60 @@ class tx_dlf_document {
}
/**
* This gets details about a logical structure element
*
* @access public
*
* @param string $id: The @ID attribute of the logical structure node
* @param boolean $recursive: Whether to include the child elements
*
* @return array Array of the element's id, label, type and physical page indexes/mptr link
*/
public function getLogicalStructure($id, $recursive = FALSE) {
$details = array ();
// Is the requested logical unit already loaded?
if (!$recursive && !empty($this->logicalUnits[$id])) {
// Yes. Return it.
return $this->logicalUnits[$id];
} elseif (!empty($id)) {
// Get specified logical unit.
$div = $this->mets->xpath('./mets:structMap[@TYPE="LOGICAL"]//mets:div[@ID="'.$id.'"]');
} else {
// Get all logical units at top level.
$div = $this->mets->xpath('./mets:structMap[@TYPE="LOGICAL"]/mets:div');
}
if (!empty($div)) {
if (!$recursive) {
$details = $this->getLogicalStructureInfo($div[0]);
} else {
foreach ($div as $_div) {
$this->tableOfContents[] = $this->getLogicalStructureInfo($_div, $recursive);
}
}
}
return $details;
}
/**
* This gets details about a logical structure element
*
@ -459,7 +513,7 @@ class tx_dlf_document {
$details['points'] = '';
// Is there a mptr node?
if (!empty($structure->children('http://www.loc.gov/METS/')->mptr)) {
if (count($structure->children('http://www.loc.gov/METS/')->mptr)) {
// Yes. Get the file reference.
$details['points'] = (string) $structure->children('http://www.loc.gov/METS/')->mptr[0]->attributes('http://www.w3.org/1999/xlink')->href;
@ -467,6 +521,9 @@ class tx_dlf_document {
// Are there any physical pages and is this logical unit linked to at least one of them?
} elseif ($this->_getPhysicalPages() && array_key_exists($details['id'], $this->smLinks['l2p'])) {
// Load smLinks.
$this->_getSmLinks();
$details['points'] = max(intval(array_search($this->smLinks['l2p'][$details['id']][0], $this->physicalPages, TRUE)), 1);
// Get page number of the first page related to this structure element.
@ -484,7 +541,7 @@ class tx_dlf_document {
$this->logicalUnits[$details['id']] = $details;
// Walk the structure recursively? And are there any children of the current element?
if ($recursive && !empty($structure->children('http://www.loc.gov/METS/')->div)) {
if ($recursive && count($structure->children('http://www.loc.gov/METS/')->div)) {
$details['children'] = array ();
@ -501,64 +558,6 @@ class tx_dlf_document {
}
/**
* This gets details about a logical structure element
*
* @access public
*
* @param string $id: The @ID attribute of the logical structure node
* @param boolean $recursive: Whether to include the child elements
*
* @return array Array of the element's id, label, type and physical page indexes/mptr link
*/
public function getLogicalStructure($id = '', $recursive = FALSE) {
// Is the requested logical unit already loaded?
if (!$recursive && !empty($id) && !empty($this->logicalUnits[$id])) {
// Yes. Return it.
return $this->logicalUnits[$id];
} elseif (!empty($id)) {
// Get specified logical unit.
$div = $this->mets->xpath('./mets:structMap[@TYPE="LOGICAL"]//mets:div[@ID="'.$id.'"]');
} elseif ($recursive) {
// Get all logical units at top level.
$div = $this->mets->xpath('./mets:structMap[@TYPE="LOGICAL"]/mets:div');
}
if (!empty($div)) {
// Load smLinks.
$this->_getSmLinks();
foreach ($div as $structure) {
// Get logical unit's details.
$this->tableOfContents[] = $this->getLogicalStructureInfo($structure, $recursive);
}
}
if (!empty($this->logicalUnits[$id])) {
return $this->logicalUnits[$id];
} else {
// trigger_error('There is no logical structure node with @ID '.$id, E_USER_WARNING);
return array ();
}
}
/**
* This extracts all the metadata for a logical structure node
*