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exports.showCountDownTimerToReconnectOnModal = function($modal) {
if (clientVars.automaticReconnectionTimeout && $modal.is('.with_reconnect_timer')) {
createCountDownElementsIfNecessary($modal);
var timer = createTimerForModal($modal);
$modal.find('#cancelreconnect').one('click', function() {
timer.cancel();
disableAutomaticReconnection($modal);
});
enableAutomaticReconnection($modal);
}
}
var createCountDownElementsIfNecessary = function($modal) {
var elementsDoNotExist = $modal.find('#cancelreconnect').length === 0;
if (elementsDoNotExist) {
var $defaultMessage = $modal.find('#defaulttext');
var $reconnectButton = $modal.find('#forcereconnect');
// create extra DOM elements, if they don't exist
var $reconnectTimerMessage = $('<p class="reconnecttimer"> \
<span data-l10n-id="pad.modals.reconnecttimer">This window will automatically reconnect in </span> \
<span class="timetoexpire"></span> \
</p>');
var $cancelReconnect = $('<button id="cancelreconnect" data-l10n-id="pad.modals.cancel">Cancel</button>');
$reconnectTimerMessage.insertAfter($defaultMessage);
$cancelReconnect.insertAfter($reconnectButton);
}
}
var createTimerForModal = function($modal) {
var timer = new CountDownTimer(clientVars.automaticReconnectionTimeout);
timer.onTick(function(minutes, seconds) {
updateCountDownTimerMessage($modal, minutes, seconds);
}).onExpire(function() {
reconnect($modal);
}).start();
return timer;
}
var disableAutomaticReconnection = function($modal) {
toggleAutomaticReconnectionOption($modal, true);
}
var enableAutomaticReconnection = function($modal) {
toggleAutomaticReconnectionOption($modal, false);
}
var toggleAutomaticReconnectionOption = function($modal, disableAutomaticReconnect) {
$modal.find('#cancelreconnect, .reconnecttimer').toggleClass('hidden', disableAutomaticReconnect);
$modal.find('#defaulttext').toggleClass('hidden', !disableAutomaticReconnect);
}
var reconnect = function($modal) {
$modal.find('#forcereconnect').click();
}
var updateCountDownTimerMessage = function($modal, minutes, seconds) {
minutes = minutes < 10 ? '0' + minutes : minutes;
seconds = seconds < 10 ? '0' + seconds : seconds;
$modal.find('.timetoexpire').text(minutes + ':' + seconds);
}
// Timer based on http://stackoverflow.com/a/20618517.
// duration: how many **seconds** until the timer ends
// granularity (optional): how many **milliseconds** between each 'tick' of timer. Default: 1000ms (1s)
var CountDownTimer = function(duration, granularity) {
this.duration = duration;
this.granularity = granularity || 1000;
this.running = false;
this.onTickCallbacks = [];
this.onExpireCallbacks = [];
}
CountDownTimer.prototype.start = function() {
if (this.running) {
return;
}
this.running = true;
var start = Date.now(),
that = this,
diff, obj;
(function timer() {
diff = that.duration - Math.floor((Date.now() - start) / 1000);
if (diff > 0) {
that.timeoutId = setTimeout(timer, that.granularity);
obj = CountDownTimer.parse(diff);
that.onTickCallbacks.forEach(function(callback) {
callback.call(this, obj.minutes, obj.seconds);
}, that);
} else {
that.running = false;
that.onExpireCallbacks.forEach(function(callback) {
callback.call(this);
}, that);
}
}());
};
CountDownTimer.prototype.onTick = function(callback) {
if (typeof callback === 'function') {
this.onTickCallbacks.push(callback);
}
return this;
};
CountDownTimer.prototype.onExpire = function(callback) {
if (typeof callback === 'function') {
this.onExpireCallbacks.push(callback);
}
return this;
};
CountDownTimer.prototype.cancel = function() {
this.running = false;
clearTimeout(this.timeoutId);
return this;
};
CountDownTimer.parse = function(seconds) {
return {
'minutes': (seconds / 60) | 0,
'seconds': (seconds % 60) | 0
};
};
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