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<?php
/**
* KMLCreator is a FeedCreator that implements a KML output, suitable for Keyhole/Google Earth
*
* @since 1.7.3
* @author Barry Hunter <geo@barryhunter.co.uk>
*/
class KMLCreator extends FeedCreator
{
/**
* KMLCreator constructor.
*/
public function __construct()
{
$this->contentType = "application/vnd.google-earth.kml+xml";
$this->encoding = "utf-8";
}
/** @inheritdoc */
public function createFeed()
{
$feed = "<?xml version=\"1.0\" encoding=\"".$this->encoding."\"?>\n";
$feed .= $this->_createStylesheetReferences();
$feed .= "<kml xmlns=\"http://earth.google.com/kml/2.0\">\n";
$feed .= "<Document>\n";
if ($_GET['LinkControl']) {
$feed .= "<NetworkLinkControl>\n<minRefreshPeriod>3600</minRefreshPeriod>\n</NetworkLinkControl>\n";
}
if (!empty($_GET['simple']) && count($this->items) > 0) {
$feed .= "<Style id=\"defaultIcon\">
<LabelStyle>
<scale>0</scale>
</LabelStyle>
</Style>
<Style id=\"hoverIcon\">".
(($this->items[0]->thumb != "") ? "
<IconStyle id=\"hoverIcon\">
<scale>2.1</scale>
</IconStyle>" : '')."
</Style>
<StyleMap id=\"defaultStyle\">
<Pair>
<key>normal</key>
<styleUrl>#defaultIcon</styleUrl>
</Pair>
<Pair>
<key>highlight</key>
<styleUrl>#hoverIcon</styleUrl>
</Pair>
</StyleMap>
";
$style = "#defaultStyle";
} else {
$style = "root://styleMaps#default?iconId=0x307";
}
$feed .= "<Folder>\n";
$feed .= " <name>".FeedCreator::iTrunc(htmlspecialchars($this->title), 100)."</name>
<description>".$this->getDescription()."</description>
<visibility>1</visibility>\n";
$this->truncSize = 500;
for ($i = 0; $i < count($this->items); $i++) {
//added here beucase description gets auto surrounded by cdata
$this->items[$i]->description = "<b>".$this->items[$i]->description."</b><br/>
".$this->items[$i]->licence."
<br/><br/><a href=\"".htmlspecialchars($this->items[$i]->link)."\">View Online</a>";
$feed .= "
<Placemark>
<description>".$this->items[$i]->getDescription(true)."</description>
<name>".FeedCreator::iTrunc(htmlspecialchars(strip_tags($this->items[$i]->title)), 100)."</name>
<visibility>1</visibility>
<Point>
<coordinates>".$this->items[$i]->long.",".$this->items[$i]->lat.",25</coordinates>
</Point>";
if ($this->items[$i]->thumb != "") {
$feed .= "
<styleUrl>$style</styleUrl>
<Style>
<icon>".htmlspecialchars($this->items[$i]->thumb)."</icon>
</Style>";
}
$feed .= "
</Placemark>\n";
}
$feed .= "</Folder>\n</Document>\n</kml>\n";
return $feed;
}
/**
* Generate a filename for the feed cache file. Overridden from FeedCreator to prevent XML data types.
*
* @return string the feed cache filename
* @since 1.4
* @access private
*/
protected function _generateFilename()
{
$fileInfo = pathinfo($_SERVER["PHP_SELF"]);
return substr($fileInfo["basename"], 0, -(strlen($fileInfo["extension"]) + 1)).".kml";
}
}
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