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<?php
/**
* Piwik - Open source web analytics
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html Gpl v3 or later
* @version $Id$
*
* @category Piwik
* @package Piwik
*/
/**
* Reads the requested DataTable from the API, and prepares the data to give
* to Piwik_Visualization_Cloud that will display the tag cloud (via the template cloud.tpl).
*
* @package Piwik
* @subpackage Piwik_ViewDataTable
*/
class Piwik_ViewDataTable_Cloud extends Piwik_ViewDataTable
{
protected $displayLogoInsteadOfLabel = false;
public function setDisplayLogoInTagCloud($bool)
{
$this->displayLogoInsteadOfLabel = $bool;
}
protected function getViewDataTableId()
{
return 'cloud';
}
/**
* @see Piwik_ViewDataTable::init()
*/
function init($currentControllerName,
$currentControllerAction,
$apiMethodToRequestDataTable )
{
parent::init($currentControllerName,
$currentControllerAction,
$apiMethodToRequestDataTable );
$this->dataTableTemplate = 'CoreHome/templates/cloud.tpl';
$this->disableOffsetInformation();
$this->disableExcludeLowPopulation();
}
/**
* @see Piwik_ViewDataTable::main()
*
*/
public function main()
{
$this->setLimit( 30 );
if($this->mainAlreadyExecuted)
{
return;
}
$this->mainAlreadyExecuted = true;
$this->isDataAvailable = true;
try {
$this->loadDataTableFromAPI();
} catch(Exception $e) {
$this->isDataAvailable = false;
}
$this->view = $this->buildView();
}
function getColumnToDisplay()
{
$columns = parent::getColumnsToDisplay();
// not label, but the first numeric column
return $columns[1];
}
protected function buildView()
{
$view = new Piwik_View($this->dataTableTemplate);
if(!$this->isDataAvailable)
{
$view->cloudValues = array();
}
else
{
$columnToDisplay = $this->getColumnToDisplay();
$columnTranslation = $this->getColumnTranslation($columnToDisplay);
$values = $this->dataTable->getColumn($columnToDisplay);
$labels = $this->dataTable->getColumn('label');
$labelMetadata = array();
foreach($this->dataTable->getRows() as $row)
{
$logo = false;
if($this->displayLogoInsteadOfLabel)
{
$logo = $row->getMetadata('logo');
}
$labelMetadata[$row->getColumn('label')] = array(
'logo' => $logo,
'url' => $row->getMetadata('url'),
);
}
$cloud = new Piwik_Visualization_Cloud();
foreach($labels as $i => $label)
{
$cloud->addWord($label, $values[$i]);
}
$cloudValues = $cloud->render('array');
foreach($cloudValues as &$value)
{
$value['logoWidth'] = round(max(16, $value['percent']));
}
$view->columnTranslation = $columnTranslation;
$view->labelMetadata = $labelMetadata;
$view->cloudValues = $cloudValues;
}
$view->javascriptVariablesToSet = $this->getJavascriptVariablesToSet();
$view->properties = $this->getViewProperties();
return $view;
}
}
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