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/*!
* Piwik - Web Analytics
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*/
/**
* jQuery Plugin for Live visitors widget
*/
(function ($) {
$.extend({
liveWidget: new function () {
/**
* Default settings for widgetPreview
*/
var settings = {
// Maximum numbers of rows to display in widget
maxRows: 10,
// minimal time in microseconds to wait between updates
interval: 3000,
// maximum time to wait between requests
maxInterval: 300000,
// url params to use for data request
dataUrlParams: null,
// callback triggered on a successfull update (content of widget changed)
onUpdate: null,
// speed for fade animation
fadeInSpeed: 'slow'
};
var currentInterval, updated, updateInterval, liveWidget;
var isStarted = true;
/**
* Update the widget
*/
function update() {
// is content updated (eg new visits/views)
updated = false;
var ajaxRequest = new ajaxHelper();
ajaxRequest.addParams(settings.dataUrlParams, 'GET');
ajaxRequest.setFormat('html');
ajaxRequest.setCallback(function (r) {
parseResponse(r);
// add default interval to last interval if not updated or reset to default if so
if (!updated) {
currentInterval += settings.interval;
} else {
currentInterval = settings.interval;
if (settings.onUpdate) settings.onUpdate();
}
// check new interval doesn't reach the defined maximum
if (settings.maxInterval < currentInterval) {
currentInterval = settings.maxInterval;
}
if (isStarted) {
window.clearTimeout(updateInterval);
if ($(liveWidget).closest('body').length) {
updateInterval = window.setTimeout(update, currentInterval);
}
}
});
ajaxRequest.send(false);
};
/**
* Parses the given response and updates the widget if newer content is available
*/
function parseResponse(data) {
if (!data || !data.length) {
updated = false;
return;
}
var items = $('li', $(data));
for (var i = items.length; i--;) {
parseItem(items[i]);
}
};
/**
* Parses the given item and updates or adds an entry to the list
*
* @param item to parse
*/
function parseItem(item) {
var visitId = $(item).attr('id');
if ($('#' + visitId, liveWidget).length) {
if ($('#' + visitId, liveWidget).html() != $(item).html()) {
updated = true;
}
$('#' + visitId, liveWidget).remove();
$(liveWidget).prepend(item);
} else {
updated = true;
$(item).hide();
$(liveWidget).prepend(item);
$(item).fadeIn(settings.fadeInSpeed);
}
// remove rows if there are more than the maximum
$('li:gt(' + (settings.maxRows - 1) + ')', liveWidget).remove();
};
/**
* Constructor
*
* @param object userSettings Settings to be used
* @return void
*/
this.construct = function (userSettings) {
settings = jQuery.extend(settings, userSettings);
if (!settings.dataUrlParams) {
console && console.error('liveWidget error: dataUrlParams needs to be defined in settings.');
return;
}
liveWidget = this;
currentInterval = settings.interval;
updateInterval = window.setTimeout(update, currentInterval);
};
/**
* Triggers an update for the widget
*
* @return void
*/
this.update = function () {
update();
};
/**
* Starts the automatic update cycle
*/
this.start = function () {
isStarted = true;
currentInterval = 0;
update();
};
/**
* Stops the automatic update cycle
*/
this.stop = function () {
isStarted = false;
window.clearTimeout(updateInterval);
};
/**
* Set the interval for refresh
*/
this.setInterval = function (interval) {
currentInterval = interval;
};
}
});
/**
* Makes liveWidget available with $().liveWidget()
*/
$.fn.extend({
liveWidget: $.liveWidget.construct
});
})(jQuery);
var pauseImage = "plugins/Live/templates/images/pause.gif";
var pauseDisabledImage = "plugins/Live/templates/images/pause_disabled.gif";
var playImage = "plugins/Live/templates/images/play.gif";
var playDisabledImage = "plugins/Live/templates/images/play_disabled.gif";
function onClickPause() {
$('#pauseImage').attr('src', pauseImage);
$('#playImage').attr('src', playDisabledImage);
return $.liveWidget.stop();
}
function onClickPlay() {
$('#playImage').attr('src', playImage);
$('#pauseImage').attr('src', pauseDisabledImage);
return $.liveWidget.start();
}
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