From 1180e6486139a9c9662984367c4f624394e06f35 Mon Sep 17 00:00:00 2001
From: wei <>
Date: Sat, 12 Aug 2006 12:54:27 +0000
Subject: Add Triggered Callbacks

---
 .../UI/ActiveControls/TValueTriggeredCallback.php  | 92 ++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 framework/Web/UI/ActiveControls/TValueTriggeredCallback.php

(limited to 'framework/Web/UI/ActiveControls/TValueTriggeredCallback.php')

diff --git a/framework/Web/UI/ActiveControls/TValueTriggeredCallback.php b/framework/Web/UI/ActiveControls/TValueTriggeredCallback.php
new file mode 100644
index 00000000..bb50e4f1
--- /dev/null
+++ b/framework/Web/UI/ActiveControls/TValueTriggeredCallback.php
@@ -0,0 +1,92 @@
+<?php
+
+class TValueTriggeredCallback extends TTriggeredCallback
+{
+	/**
+	 * @return string The control property name to observe value changes.
+	 */
+	public function getPropertyName()
+	{
+		return $this->getViewState('PropertyName', '');
+	}
+
+	/**
+	 * Sets the control property name to observe value changes that fires the callback request.
+	 * @param string The control property name to observe value changes.
+	 */
+	public function setPropertyName($value)
+	{
+		$this->setViewState('PropertyName', $value, '');
+	}
+
+	/**
+	 * Sets the polling interval in seconds to observe property changes.
+	 * Default is 1 second.
+	 * @param float polling interval in seconds.
+	 */
+	public function setPollingInterval($value)
+	{
+		$this->setViewState('Interval', TPropertyValue::ensureFloat($value), 1);
+	}
+
+	/**
+	 * Gets the decay rate between callbacks. Default is 0;
+	 * @return float decay rate between callbacks.
+	 */
+	public function getDecayRate()
+	{
+		return $this->getViewState('Decay', 0);
+	}
+
+	/**
+	 * Sets the decay rate between callback. Default is 0;
+	 * @param float decay rate between callbacks.
+	 */
+	public function setDecayRate($value)
+	{
+		$decay = TPropertyValue::ensureFloat($value);
+		if($decay < 0)
+			throw new TConfigurationException('callback_decay_be_not_negative', $this->getID());
+		$this->setViewState('Decay', $decay);
+	}
+
+	/**
+	 * @return float polling interval, 1 second default.
+	 */
+	public function getPollingInterval()
+	{
+		return $this->getViewState('Interval', 1);
+	}
+
+	/**
+	 * @return array list of timer options for client-side.
+	 */
+	protected function getTriggerOptions()
+	{
+		$options = parent::getTriggerOptions();
+		$options['PropertyName'] = $this->getPropertyName();
+		$options['Interval'] = $this->getPollingInterval();
+		$options['Decay'] = $this->getDecayRate();
+		return $options;
+	}
+
+	/**
+	 * Registers the javascript code for initializing the active control.
+	 * @param THtmlWriter the renderer.
+	 */
+	public function render($writer)
+	{
+		parent::render($writer);
+		$this->getActiveControl()->registerCallbackClientScript(
+			$this->getClientClassName(), $this->getTriggerOptions());
+	}
+
+	/**
+	 * @return string corresponding javascript class name for TEventTriggeredCallback.
+	 */
+	protected function getClientClassName()
+	{
+		return 'Prado.WebUI.TValueTriggeredCallback';
+	}
+}
+?>
\ No newline at end of file
-- 
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