/**
* Update the progressbar
*
* @param float $value
* @param string $text
* @return void
*/
public function update($value = null, $text = null)
{
// Update value if given
if ($value !== null) {
$this->_current = min($this->_max, max($this->_min, $value));
}
// Update text if given
if ($text !== null) {
$this->_statusText = $text;
}
// See if we have to update a namespace
if ($this->_persistenceNamespace !== null) {
$this->_persistenceNamespace->current = $this->_current;
$this->_persistenceNamespace->statusText = $this->_statusText;
}
// Calculate percent
if ($this->_min === $this->_max) {
$percent = false;
} else {
$percent = (double) ($this->_current - $this->_min) / ($this->_max - $this->_min);
}
// Calculate ETA
$timeTaken = time() - $this->_startTime;
if ($percent === 0.0 || $percent === false) {
$timeRemaining = null;
} else {
$timeRemaining = round(1 / $percent * $timeTaken - $timeTaken);
}
// Poll the adapter
$this->_adapter->notify($this->_current, $this->_max, $percent, $timeTaken, $timeRemaining, $this->_statusText);
}
