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/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Server Status Processes
*
* @package PhpMyAdmin
*/
// object to store process list state information
var processList = {
// denotes whether auto refresh is on or off
autoRefresh: false,
// stores the GET request which refresh process list
refreshRequest: null,
// stores the timeout id returned by setTimeout
refreshTimeout: null,
// the refresh interval in seconds
refreshInterval: null,
// the refresh URL (required to save last used option)
// i.e. full or sorting url
refreshUrl: null,
/**
* Handles killing of a process
*
* @return void
*/
init: function() {
processList.setRefreshLabel();
if (processList.refreshUrl === null) {
processList.refreshUrl = 'server_status_processes.php' +
PMA_commonParams.get('common_query');
}
if (processList.refreshInterval === null) {
processList.refreshInterval = $('#id_refreshRate').val();
} else {
$('#id_refreshRate').val(processList.refreshInterval);
}
},
/**
* Handles killing of a process
*
* @param object the event object
*
* @return void
*/
killProcessHandler: function(event) {
event.preventDefault();
var url = $(this).attr('href');
// Get row element of the process to be killed.
var $tr = $(this).closest('tr');
$.getJSON(url, function(data) {
// Check if process was killed or not.
if (data.hasOwnProperty('success') && data.success) {
// remove the row of killed process.
$tr.remove();
// As we just removed a row, reapply odd-even classes
// to keep table stripes consistent
$('#tableprocesslist > tbody > tr').filter(':even')
.removeClass('odd').addClass('even');
$('#tableprocesslist > tbody > tr').filter(':odd')
.removeClass('even').addClass('odd');
// Show process killed message
PMA_ajaxShowMessage(data.message, false);
} else {
// Show process error message
PMA_ajaxShowMessage(data.error, false);
}
});
},
/**
* Handles Auto Refreshing
*
* @param object the event object
*
* @return void
*/
refresh: function(event) {
// abort any previous pending requests
// this is necessary, it may go into
// multiple loops causing unnecessary
// requests even after leaving the page.
processList.abortRefresh();
// if auto refresh is enabled
if (processList.autoRefresh) {
var interval = parseInt(processList.refreshInterval, 10) * 1000;
processList.refreshRequest = $.get(processList.refreshUrl, {
'ajax_request': true,
'refresh': true
}, function(data) {
if (data.hasOwnProperty('success') && data.success) {
$newTable = $(data.message);
$('#tableprocesslist').html($newTable.html());
PMA_highlightSQL($('#tableprocesslist'));
}
processList.refreshTimeout = setTimeout(
processList.refresh,
interval
);
});
}
},
/**
* Stop current request and clears timeout
*
* @return void
*/
abortRefresh: function() {
if (processList.refreshRequest !== null) {
processList.refreshRequest.abort();
processList.refreshRequest = null;
}
clearTimeout(processList.refreshTimeout);
},
/**
* Set label of refresh button
* change between play & pause
*
* @return void
*/
setRefreshLabel: function() {
var img = 'play.png';
var label = PMA_messages.strStartRefresh;
if (processList.autoRefresh) {
img = 'pause.png';
label = PMA_messages.strStopRefresh;
processList.refresh();
}
$('a#toggleRefresh').html(PMA_getImage(img) + escapeHtml(label));
}
};
AJAX.registerOnload('server_status_processes.js', function() {
processList.init();
// Bind event handler for kill_process
$('#tableprocesslist').on(
'click',
'a.kill_process',
processList.killProcessHandler
);
// Bind event handler for toggling refresh of process list
$('a#toggleRefresh').on('click', function(event) {
event.preventDefault();
processList.autoRefresh = !processList.autoRefresh;
processList.setRefreshLabel();
});
// Bind event handler for change in refresh rate
$('#id_refreshRate').on('change', function(event) {
processList.refreshInterval = $(this).val();
processList.refresh();
});
// Bind event handler for table header links
$('#tableprocesslist').on('click', 'thead a', function() {
processList.refreshUrl = $(this).attr('href');
});
});
/**
* Unbind all event handlers before tearing down a page
*/
AJAX.registerTeardown('server_status_processes.js', function() {
$('#tableprocesslist').off('click', 'a.kill_process');
$('a#toggleRefresh').off('click');
$('#id_refreshRate').off('change');
$('#tableprocesslist').off('click', 'thead a');
// stop refreshing further
processList.abortRefresh();
});
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