lainchan/js/auto-reload.js

137 lines
3.5 KiB
JavaScript

/*
* auto-reload.js
* https://github.com/savetheinternet/Tinyboard/blob/master/js/auto-reload.js
*
* Brings AJAX to Tinyboard.
*
* Released under the MIT license
* Copyright (c) 2012 Michael Save <savetheinternet@tinyboard.org>
* Copyright (c) 2013-2014 Marcin Łabanowski <marcin@6irc.net>
* Copyright (c) 2013 undido <firekid109@hotmail.com>
*
* Usage:
* $config['additional_javascript'][] = 'js/jquery.min.js';
* //$config['additional_javascript'][] = 'js/titlebar-notifications.js';
* $config['additional_javascript'][] = 'js/auto-reload.js';
*
*/
auto_reload_enabled = true; // for watch.js to interop
$(document).ready(function(){
if($('div.banner').length == 0)
return; // not index
if($(".post.op").size() != 1)
return; //not thread page
var poll_interval;
// Grab the settings
var settings = new script_settings('auto-reload');
var poll_interval_mindelay_bottom = settings.get('min_delay_bottom', 3000);
var poll_interval_mindelay_top = settings.get('min_delay_top', 10000);
var poll_interval_maxdelay = settings.get('max_delay', 600000);
var poll_interval_shortdelay = settings.get('quick_delay', 100);
// number of ms to wait before reloading
var poll_interval_delay = poll_interval_mindelay_bottom;
var end_of_page = false;
var new_posts = 0;
var first_new_post = null;
if (typeof update_title == "undefined") {
var update_title = function() { };
}
if (typeof add_title_collector != "undefined")
add_title_collector(function(){
return new_posts;
});
var window_active = true;
$(window).focus(function() {
window_active = true;
recheck_activated();
// Reset the delay if needed
if(settings.get('reset_focus', true)) {
poll_interval_delay = end_of_page
? poll_interval_mindelay_bottom
: poll_interval_mindelay_top;
}
});
$(window).blur(function() {
window_active = false;
});
var recheck_activated = function() {
if (new_posts && window_active &&
$(window).scrollTop() + $(window).height() >=
$(first_new_post).position().top) {
new_posts = 0;
}
update_title();
};
var poll = function() {
$.ajax({
url: document.location,
success: function(data) {
$(data).find('div.post.reply').each(function() {
var id = $(this).attr('id');
if($('#' + id).length == 0) {
if (!new_posts) {
first_new_post = this;
}
$(this).insertAfter($('div.post:last').next()).after('<br class="clear">');
new_posts++;
$(document).trigger('new_post', this);
recheck_activated();
}
});
time_loaded = Date.now(); // interop with watch.js
}
});
clearTimeout(poll_interval);
// If there are no new posts, double the delay. Otherwise set it to the min.
if(new_posts == 0) {
poll_interval_delay *= 2;
// Don't increase the delay beyond the maximum
if(poll_interval_delay > poll_interval_maxdelay) {
poll_interval_delay = poll_interval_maxdelay;
}
} else {
poll_interval_delay = end_of_page
? poll_interval_mindelay_bottom
: poll_interval_mindelay_top;
}
poll_interval = setTimeout(poll, poll_interval_delay);
};
$(window).scroll(function() {
recheck_activated();
if($(this).scrollTop() + $(this).height() <
$('div.post:last').position().top + $('div.post:last').height()) {
end_of_page = false;
return;
}
clearTimeout(poll_interval);
poll_interval = setTimeout(poll, poll_interval_shortdelay);
end_of_page = true;
}).trigger('scroll');
poll_interval = setTimeout(poll, poll_interval_delay);
});