OpenSlides/openslides/static/javascript/projector.js

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JavaScript
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function presentation_reload() {
if ($('#config > #ajax').html() == 'on') {
$.ajax({
type: 'GET',
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url: '/projector/',
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dataType: 'json',
data: '',
success: function(data) {
$('#content').html(data.content);
document.title = data.title;
$('#currentTime').html(data.time);
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$('#content').clearQueue();
$('#content').animate({'font-size': data.bigger + '%'}, 200);
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$('#content li').css({'font-size': data.bigger + '%'}, 200);
$('#content #sidebar').css({'font-size': '16px'}, 0);
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$('#content').animate({'margin-top': data.up + 'em'}, 200);
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if (data.countdown_visible == true)
$('#countdown').slideDown();
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if (data.countdown_visible == false)
$('#countdown').slideUp();
if (data.countdown_control == "reset")
resetTimer(data.countdown_time);
if (data.countdown_control == 'start') {
if (!timer_is_running)
startTimer();
}
if (data.countdown_control == 'stop')
stopTimer();
setTimeout("presentation_reload()", 500);
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},
error: function () {
$('#currentTime').addClass('ajax_error');
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}
});
}
}
function switchajax() {
if ($('#config > #ajax').html() == 'on') {
$('#config > #ajax').html('off');
$('#ajaxswitcher').html('<a href="#" onClick="switchajax()">Ajax Anschalten</a>');
} else {
$('#config > #ajax').html('on');
$('#ajaxswitcher').html('<a href="#" onClick="switchajax()">Ajax Ausschalten</a>');
}
}
$(document).ready(function() {
switchajax();
switchajax();
presentation_reload();
});
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// *** Countdown variables and functions ***
var timer_value;
var timer_is_running=false;
var timer_is_visible=false;
var timerIntervalId;
function resetTimer(value) {
stopTimer()
timer_value = value;
updateTimer();
}
function stopTimer() {
timer_is_running = false;
clearInterval(timerIntervalId);
}
function startTimer() {
timer_is_running = true;
if (timer_value > 0) {
timerIntervalId = setInterval("decrementTimer()", 1000);
}
}
function decrementTimer() {
timer_value--;
if (timer_value <= 0) {
timer_value = 0;
stopTimer();
}
updateTimer();
}
function convertSeconds(s) {
var m = Math.floor(s / 60);
s %= 60;
var h = Math.floor(m / 60);
m %= 60;
return (h>0?h+':':'') + (h>0&&m<10?'0':'') + m + ':' + (s<10?'0':'') + s;
}
function updateTimer() {
if (timer_value >= 0) {
$("#countdown").html(convertSeconds(timer_value));
}
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}