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Added interrupt digits handling. #11

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Added interrupt digits handling. #11

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80 changes: 78 additions & 2 deletions src/mg/PAGI/Node/Node.php
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Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,7 @@ class Node
* Any of the available DTMF digits in a classic telephone.
* @var string
*/
const DTMF_ANY = '0123456789*#';
const DTMF_ANY = '#*0123456789';
/**
* DTMF digit '*'
* @var string
Expand All @@ -63,7 +63,7 @@ class Node
* DTMF digits which are integers (numbers)
* @var string
*/
const DTMF_NUMERIC = '1234567890';
const DTMF_NUMERIC = '0123456789';
/**
* DTMF digits non numeric
* @var string
Expand Down Expand Up @@ -344,6 +344,49 @@ class Node
*/
private $_playOnNoInputInLastAttempt = false;


/**
* Add specific keys for interruption.
*
* @var string One of the DTMF constants
* @return Node
*/
public function addValidInterruptDigit($digit)
{
if (!$this->_promptsCanBeInterrupted) {
return $this;
}

if (false !== strpos($this->_validInterruptDigits, $digit)) {
return $this;
}

$digits = array_unique(str_split($this->_validInterruptDigits.$digit));
sort($digits);

$this->_validInterruptDigits = '';
foreach($digits as $interrupt_digit) {
switch($interrupt_digit) {
case self::DTMF_0:
case self::DTMF_1:
case self::DTMF_2:
case self::DTMF_3:
case self::DTMF_4:
case self::DTMF_5:
case self::DTMF_6:
case self::DTMF_7:
case self::DTMF_8:
case self::DTMF_9:
case self::DTMF_HASH:
case self::DTMF_STAR:
$this->_validInterruptDigits .= $interrupt_digit;
break;
}
}

return $this;
}

/**
* Make pre prompt messages not interruptable
*
Expand All @@ -368,6 +411,29 @@ public function dontAcceptPrePromptInputAsInput()
return $this;
}

/**
* Clear the digits with which a prompt can be interrupted.
*
* @return Node
*/
public function clearInterruptDigits()
{
$this->_validInterruptDigits = self::DTMF_NONE;
return $this;
}

/**
* Make prompt messages interruptable.
*
* @return Node
*/
public function interruptablePrompts()
{
$this->_promptsCanBeInterrupted = true;
$this->_validInterruptDigits = self::DTMF_ANY;
return $this;
}

/**
* Make prompt messages not interruptable.
*
Expand All @@ -380,6 +446,16 @@ public function unInterruptablePrompts()
return $this;
}

/**
* Returns whether this node is interruptable.
*
* @return Node
*/
public function isInterruptable()
{
return $this->_promptsCanBeInterrupted;
}

/**
* Specify an optional message to play when the user did not enter any
* input at all. By default, will NOT be played if this happens in the last
Expand Down