Automatically presses the "next" button on image gallaries.
// ==UserScript==
// @name SlideShow
// @namespace
// @description Automatically presses the "next" button on image gallaries.
// @include *
// @include http://code.jquery.com/jquery-2.1.4.min.js
// @version 1.2
// @grant none
// ==/UserScript==
/* OPTIONS */
/* When the image is off the screen, when to move down.
0-1 = Never
3/4 = 3 Quarters of the way through
2/3 = 2 Thirds of the way through
2 = Half way through
3 = Third of the way through
4 = Quarter of the way through
etc.
*/
var whenToMoveDown = 2;
/* In milliseconds (1 second * 1000), how long the animation is for the screen to move auto scroll to the image.
For no animation, set it to 0
*/
var moveDownAnimationTime = 1000;
/* In pixels, how much space there is between the top of the screen and image. Default is 50. */
var spaceAboveImage = 50;
/* END OPTIONS */
var windowHeight;
var slide = false;
var timer;
var timer2;
var timehalf;
var height;
var heightNum;
var mainImage;
$(window).load(function(){
var cookieExsist = checkCookie();
$( 'body' ).prepend('<div id="slidecontainer" style="margin: 0 auto; position: fixed; width: 100%; overflow: auto; top: 0; background-color: #fff; border-bottom: 5px solid #A00000; z-index: 100000;"><div id="slidecontrols" style="min-width: 300px; width: 30%; margin: 0 auto;"></div></div>');
$( '#slidecontrols' ).html('<input id="slidetime" value="10"/><div id="slidelabel">(seconds)</div><button id="slide">Start</button>');
$( '#slidetime' ).css({'width': '60%', 'float': 'left',
'padding': '0 3px',
'font-size': '13px',
'background-color': '#383838',
'color': '#fff',
'height':'28px',
'margin': '2px 0',
'text-align': 'center'
});
$( '#slidelabel' ).css({'float': 'left',
'padding': '0 3px',
'font-size': '13px',
'color': '#000',
'height': '28px',
'line-height': '30px',
'margin': '2px 0'
});
$( '#slide' ).css({'width': '14%', 'float': 'right',
'padding': '0 3px',
'font-size': '13px',
'background-color': '#D0D0D0',
'color': '#585858',
'height':'28px',
'margin': '2px 0',
'text-align': 'center',
'border-radius': '5px',
'border': '1px solid blue',
'font-weight': 'normal',
'cursor': 'pointer'
});
height = $( '#slidecontainer' ).css( "height" );
heightNum = $( '#slidecontainer' ).height();
windowHeight = $( window ).height();
$( 'body' ).css({'margin-top': height});
if(cookieExsist)
{
var slidetime = getCookie('slideactive');
slide = true;
$( '#slide' ).text('Stop');
var sts = slidetime / 1000;
$( '#slidetime' ).val(sts);
$( '#slidetime' ).attr("disabled", true);
timer = setInterval(function(){nextPage();},slidetime);
timehalf = slidetime / whenToMoveDown;
scroll();
}
$( '#slide' ).click(function(){
if(!slide)
{
slide = true;
$( '#slide' ).text('Stop');
var slidetime = $('#slidetime').val();
slidetime = slidetime * 1000;
if(!$.isNumeric(slidetime) || slidetime == '')
{
slidetime = 10000;
}
timehalf = slidetime / 2;
timer = setInterval(function(){nextPage();},slidetime);
setCookie('slideactive',slidetime,1);
$( '#slidetime' ).attr("disabled", true);
scroll();
}
else
{
stopSlide();
}
});
});
function stopSlide()
{
slide = false;
$( '#slide' ).text('Start');
clearInterval(timer);
$( '#slidetime' ).removeAttr("disabled");
setCookie('slideactive','',0);
clearTimeout(timer2);
}
function scroll()
{
var offset = 0;
var imageHeight = 0;
$('img').each(function(){
if($( this ).width() >= 400 || $( this ).height() >= 400)
{
offset = $( this ).offset().top;
imageHeight = $( this ).height();
mainImage = $( this );
return false;
}
});
var offset2 = offset - (heightNum + spaceAboveImage);
$('html, body').animate({ scrollTop: offset2 }, 500);
var contentheight = offset + imageHeight;
var downvalue = contentheight - windowHeight;
if(downvalue+20 >= offset2)
{
downvalue += 20;
timer2 = setTimeout(function(){$('html, body').animate({ scrollTop: downvalue }, moveDownAnimationTime);}, timehalf);
}
}
function nextPage()
{
var URL = $(location).attr('href');
var URL2 = $(location).attr('href');
var found = false;
$('a').each(function(){
var t = $(this).text();
if (t.toLowerCase().indexOf("next") >= 0)
{
$(this).click();
found = true;
}
});
if(URL != URL2 || found == true)
{
scroll();
}
else
{
$('body').trigger({
type: 'keydown',
which: 39
});
URL2 = $(location).attr('href');
if(URL == URL2)
{
console.log(mainImage);
mainImage.click();
URL2 = $(location).attr('href');
setTimeout(function(){
if(URL == URL2)
{
alert("Couldn't find a next button! :(");
stopSlide();
}
else
{
scroll();
}
},100);
}
else
{
scroll();
}
}
}
function setCookie(cname, cvalue, exdays) {
var d = new Date();
d.setTime(d.getTime() + (exdays*24*60*60*1000));
var expires = "expires="+d.toUTCString();
document.cookie = cname + "=" + cvalue + "; " + expires+"; path=/";
}
function getCookie(cname) {
var name = cname + "=";
var ca = document.cookie.split(';');
for(var i=0; i<ca.length; i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1);
if (c.indexOf(name) == 0) return c.substring(name.length,c.length);
}
return "";
}
function checkCookie() {
var active=getCookie("slideactive");
if (active!="") {
return true;
}else{
return false;
}
}