mirror of
https://github.com/Mibew/button-refresh-plugin.git
synced 2024-11-15 00:34:18 +03:00
128 lines
3.5 KiB
PHP
128 lines
3.5 KiB
PHP
<?php
|
|
/*
|
|
* This file is a part of Mibew Button Refresh Plugin.
|
|
*
|
|
* Copyright 2014 Dmitriy Simushev <simushevds@gmail.com>.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
/**
|
|
* @file The main file of Mibew:ButtonRefresh plugin.
|
|
*/
|
|
|
|
namespace Mibew\Mibew\Plugin\ButtonRefresh;
|
|
|
|
use Canteen\HTML5;
|
|
use Mibew\Button\Generator\ImageGenerator;
|
|
use Mibew\EventDispatcher\EventDispatcher;
|
|
use Mibew\EventDispatcher\Events;
|
|
use Mibew\Plugin\AbstractPlugin;
|
|
use Mibew\Plugin\PluginInterface;
|
|
|
|
/**
|
|
* The main plugin's file definition.
|
|
*
|
|
* It only attaches handlers to some events.
|
|
*/
|
|
class Plugin extends AbstractPlugin implements PluginInterface
|
|
{
|
|
/**
|
|
* List of the plugin configs.
|
|
*
|
|
* @var array
|
|
*/
|
|
protected $config;
|
|
|
|
/**
|
|
* Class constructor.
|
|
*
|
|
* @param array $config List of the plugin config. The following options are
|
|
* supported:
|
|
* - 'refresh_frequency': int, time in seconds between button refreshes.
|
|
* The default value is 3.
|
|
*/
|
|
public function __construct($config)
|
|
{
|
|
$this->config = $config + array('refresh_frequency' => 3);
|
|
}
|
|
|
|
/**
|
|
* The plugin does not need extra initialization thus it is always ready to
|
|
* work.
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public function initialized()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* The main entry point of a plugin.
|
|
*/
|
|
public function run()
|
|
{
|
|
$dispatcher = EventDispatcher::getInstance();
|
|
$dispatcher->attachListener(Events::BUTTON_GENERATE, $this, 'alterButton');
|
|
}
|
|
|
|
/**
|
|
* Specify dependencies of the plugin.
|
|
*
|
|
* @return array List of dependencies
|
|
*/
|
|
public static function getDependencies()
|
|
{
|
|
// This plugin does not depend on others so return an empty array.
|
|
return array();
|
|
}
|
|
|
|
/**
|
|
* A handler for
|
|
* {@link \Mibew\EventDispatcher\Events::BUTTON_GENERATE} event.
|
|
*
|
|
* @param array $args Event arguments.
|
|
*/
|
|
public function alterButton(&$args)
|
|
{
|
|
if ($args['generator'] instanceof ImageGenerator) {
|
|
// Only image buttons should be refreshed
|
|
$script = HTML5\html('script');
|
|
$script->addChild($this->buildRefreshJs($this->config['refresh_frequency']));
|
|
$script->setAttribute('type', 'text/javascript');
|
|
|
|
$last_index = count($args['button']->getChildren()) - 1;
|
|
$args['button']->addChildAt($script, $last_index);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Builds JavaScript source for button refresh.
|
|
*
|
|
* @param int $time Interval between button refreshes in seconds.
|
|
* @return string
|
|
*/
|
|
protected function buildRefreshJs($time)
|
|
{
|
|
$js = '(function() {'
|
|
. 'var img = document.getElementById("mibewAgentButton").getElementsByTagName("img")[0];'
|
|
. 'var originalSrc = img.src;'
|
|
. 'setInterval(function() {'
|
|
. 'img.src = originalSrc + "&dummy=" + (new Date()).getTime();'
|
|
. '}, %u);})();';
|
|
|
|
return sprintf($js, $time * 1000);
|
|
}
|
|
}
|