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rcube_json_output.php
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rcube_json_output.php
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<?php
/*
+-----------------------------------------------------------------------+
| program/include/rcube_json_output.php |
| |
| This file is part of the RoundCube Webmail client |
| Copyright (C) 2008-2010, RoundCube Dev. - Switzerland |
| Licensed under the GNU GPL |
| |
| PURPOSE: |
| Class to handle HTML page output using a skin template. |
| Extends rcube_html_page class from rcube_shared.inc |
| |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
$Id$
*/
/**
* View class to produce JSON responses
*
* @package View
*/
class rcube_json_output
{
private $config;
private $charset = RCMAIL_CHARSET;
private $env = array();
private $texts = array();
private $commands = array();
private $callbacks = array();
private $message = null;
public $type = 'js';
public $ajax_call = true;
/**
* Constructor
*/
public function __construct($task)
{
$this->config = rcmail::get_instance()->config;
}
/**
* Set environment variable
*
* @param string Property name
* @param mixed Property value
*/
public function set_env($name, $value)
{
$this->env[$name] = $value;
}
/**
* Issue command to set page title
*
* @param string New page title
*/
public function set_pagetitle($title)
{
$name = $this->config->get('product_name');
$this->command('set_pagetitle', empty($name) ? $title : $name.' :: '.$title);
}
/**
* @ignore
*/
function set_charset($charset)
{
// ignore: $this->charset = $charset;
}
/**
* Get charset for output
*
* @return string Output charset
*/
function get_charset()
{
return $this->charset;
}
/**
* Register a template object handler
*
* @param string Object name
* @param string Function name to call
* @return void
*/
public function add_handler($obj, $func)
{
// ignore
}
/**
* Register a list of template object handlers
*
* @param array Hash array with object=>handler pairs
* @return void
*/
public function add_handlers($arr)
{
// ignore
}
/**
* Call a client method
*
* @param string Method to call
* @param ... Additional arguments
*/
public function command()
{
$cmd = func_get_args();
if (strpos($cmd[0], 'plugin.') === 0)
$this->callbacks[] = $cmd;
else
$this->commands[] = $cmd;
}
/**
* Add a localized label to the client environment
*/
public function add_label()
{
$args = func_get_args();
if (count($args) == 1 && is_array($args[0]))
$args = $args[0];
foreach ($args as $name) {
$this->texts[$name] = rcube_label($name);
}
}
/**
* Invoke display_message command
*
* @param string Message to display
* @param string Message type [notice|confirm|error]
* @param array Key-value pairs to be replaced in localized text
* @param boolean Override last set message
* @uses self::command()
*/
public function show_message($message, $type='notice', $vars=null, $override=true)
{
if ($override || !$this->message) {
$this->message = $message;
$this->command(
'display_message',
rcube_label(array('name' => $message, 'vars' => $vars)),
$type
);
}
}
/**
* Delete all stored env variables and commands
*/
public function reset()
{
$this->env = array();
$this->texts = array();
$this->commands = array();
}
/**
* Redirect to a certain url
*
* @param mixed Either a string with the action or url parameters as key-value pairs
* @see rcmail::url()
*/
public function redirect($p = array(), $delay = 1)
{
$location = rcmail::get_instance()->url($p);
$this->remote_response("window.setTimeout(\"location.href='{$location}'\", $delay);");
exit;
}
/**
* Send an AJAX response to the client.
*/
public function send()
{
$this->remote_response();
exit;
}
/**
* Send an AJAX response with executable JS code
*
* @param string Additional JS code
* @param boolean True if output buffer should be flushed
* @return void
* @deprecated
*/
public function remote_response($add='')
{
static $s_header_sent = false;
if (!$s_header_sent) {
$s_header_sent = true;
send_nocacheing_headers();
header('Content-Type: text/plain; charset=' . $this->get_charset());
}
// unset default env vars
unset($this->env['task'], $this->env['action'], $this->env['comm_path']);
$rcmail = rcmail::get_instance();
$response = array('action' => $rcmail->action, 'unlock' => (bool)$_REQUEST['_unlock']);
if (!empty($this->env))
$response['env'] = $this->env;
if (!empty($this->texts))
$response['texts'] = $this->texts;
// send function calls
$response['exec'] = $this->get_js_commands() . $add;
if (!empty($this->callbacks))
$response['callbacks'] = $this->callbacks;
echo json_serialize($response);
}
/**
* Return executable javascript code for all registered commands
*
* @return string $out
*/
private function get_js_commands()
{
$out = '';
foreach ($this->commands as $i => $args) {
$method = array_shift($args);
foreach ($args as $i => $arg) {
$args[$i] = json_serialize($arg);
}
$out .= sprintf(
"this.%s(%s);\n",
preg_replace('/^parent\./', '', $method),
implode(',', $args)
);
}
return $out;
}
}

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