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script.js
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script.js
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window.onload = function(){
var options = {subtree: true, childList: true, characterData: true, attributes: true};
var observer = new MutationObserver(function(mutations){
if(!isInserted()){
addPager();
}
});
observer.observe(document.body, options);
addPager();
}
function isInserted(){
if(document.getElementById('pager_last')){
return true;
}
return false;
}
function addPager(){
var displayCount = 10;
var gistsCount = 0;
var pageCount = 0;
var pager = document.getElementsByClassName('pagination');
var pagerHtml = '';
var userName = document.title.replace(/'s Gists/, '');
var currentPageNumber = 0;
var pagerElementCount = 0;
var anchorElements = [];
var pagerCounter = 1;
var startNumber = 0;
/**
* If pager doesn't exists, exit.
*/
if(!pager[0]){
return false;
}else{
pagerHtml = pager[0].innerHTML;
}
/**
* If counter doesn't exists, exit.
*/
if(document.getElementsByClassName('counter').length < 1){
return false;
}
/**
* Set gists count.
*/
if(window.location.toString().match(/forked/)){
gistsCount = document.getElementsByClassName('counter')[1].childNodes[0].textContent.replace(/,/, '');
}else if(window.location.toString().match(/starred/)){
gistsCount = document.getElementsByClassName('counter')[2].childNodes[0].textContent.replace(/,/, '');
}else{
gistsCount = document.getElementsByClassName('counter')[0].childNodes[0].textContent.replace(/,/, '');
}
/**
* Set number of pages.
*/
if(gistsCount % displayCount == 0){
pageCount = gistsCount / displayCount;
}else{
pageCount = Math.floor(gistsCount / displayCount) + 1;
}
/**
* Set number of pager elements.
*/
if(pageCount > 9){
pagerElementCount = 9;
}else{
pagerElementCount = pageCount;
}
/**
* If page is not set, set 1.
*/
if(window.location.search.match(/\?page=([0-9]+)/)){
currentPageNumber = parseInt(window.location.search.match(/\?page=([0-9]+)/)[1]);
}else{
currentPageNumber = 1;
}
/**
* Disable first button when first page is displayed.
*/
if(currentPageNumber == null || currentPageNumber <= 1){
pager[0].innerHTML = '<span id="pager_first" class="disabled">First</span>';
}else{
if(window.location.toString().match(/forked/)){
pager[0].innerHTML = '<a id="pager_first" href="/' + userName + '/forked">First</a>';
}else if(window.location.toString().match(/starred/)){
pager[0].innerHTML = '<a id="pager_first" href="/' + userName + '/starred">First</a>';
}else{
pager[0].innerHTML = '<a id="pager_first" href="/' + userName + '">First</a>';
}
}
pager[0].innerHTML += pagerHtml;
/**
* Disable last button when last page is displayed.
*/
if(currentPageNumber == pageCount || pageCount == null || pageCount <= 1){
pager[0].innerHTML += '<span id="pager_last" class="disabled">Last</span>';
}else{
if(window.location.toString().match(/forked/)){
pager[0].innerHTML += '<a id="pager_last" href="/' + userName + '/forked?page=' + pageCount + '">Last</a>';
}else if(window.location.toString().match(/starred/)){
pager[0].innerHTML += '<a id="pager_last" href="/' + userName + '/starred?page=' + pageCount + '">Last</a>';
}else{
pager[0].innerHTML += '<a id="pager_last" href="/' + userName + '?page=' + pageCount + '">Last</a>';
}
}
/**
* Set start number.
*/
if(currentPageNumber < Math.floor(pagerElementCount / 2) + 2){
startNumber = 1;
}else if(currentPageNumber > pageCount - Math.floor(pagerElementCount / 2)){
startNumber = pageCount - (pagerElementCount - 1);
}else{
startNumber = currentPageNumber - Math.floor(pagerElementCount / 2);
}
/**
* Insert pager elements.
*/
for(pagerCounter = startNumber + pagerElementCount - 1; pagerCounter >= startNumber; pagerCounter--){
if(parseInt(currentPageNumber) == pagerCounter){
anchorElement = document.createElement('span');
anchorElement.setAttribute('class', 'disabled');
anchorElement.textContent = pagerCounter;
pager[0].insertBefore(anchorElement, pager[0].childNodes[3]);
}else{
anchorElement = document.createElement('a');
if(window.location.toString().match(/forked/)){
anchorElement.setAttribute('href', '/' + userName + '/forked?page=' + pagerCounter);
}else if(window.location.toString().match(/starred/)){
anchorElement.setAttribute('href', '/' + userName + '/starred?page=' + pagerCounter);
}else{
anchorElement.setAttribute('href', '/' + userName + '?page=' + pagerCounter);
}
anchorElement.textContent = pagerCounter;
pager[0].insertBefore(anchorElement, pager[0].childNodes[3]);
}
}
}