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// ==UserScript==
// @name Reddit Display Inline Images
// @namespace http://userscripts.org/users/432375
// @description Displays linked imgaes directly in the page
// @version 2.0
// @updateURL https://userscripts.org/scripts/source/124010.meta.js
// @include http://www.reddit.com/*
// @include https://www.reddit.com/*
// @author aditya
// @grant GM_xmlhttpRequest
// ==/UserScript==
var init = function(){
var directLinks = [], indirectLinks = [];
var titleLink = document.getElementsByClassName("title");
var i = 0,j = 0, url;
var re = /jpg$|jpeg$|png$|gif$/i;
for(idx in titleLink){
if(titleLink[idx].tagName == "A"){
var obj = {};
url = titleLink[idx].getAttribute('href');
if(url.search(re) != -1){
obj.DOMElement = titleLink[idx];
obj.url = url;
directLinks[i] = obj;
i++;
}
else if(url.indexOf('imgur') > -1){
obj.DOMElement = titleLink[idx];
obj.url = url + '.jpg';
directLinks[i] = obj;
i++;
}
else if(url.indexOf('quickmeme') > -1){
obj.DOMElement = titleLink[idx];
code = url.split('/')[4];
var newUrl = 'http://i.qkme.me/'+code+'.jpg'
obj.url = newUrl;
directLinks[i] = obj;
i++;
}
else if(url.indexOf('qkme') > -1){
obj.DOMElement = titleLink[idx];
code = url.split('/')[3];
if(code.indexOf('?id') > -1){
code = code.split('?')[0];
}
var newUrl = 'http://i.qkme.me/'+code+'.jpg'
obj.url = newUrl;
directLinks[i] = obj;
i++;
}
else if(url.indexOf('flickr') > -1){
obj.DOMElement = titleLink[idx];
obj.url = url;
indirectLinks[j] = obj;
j++;
}
}
}
loadImage(directLinks);
if(indirectLinks.length > 0){
makeRequest(indirectLinks);
}
}
/**
* Calls home to retreive image links from the indirect links of flickr and 500px.
*
*/
var makeRequest = function(indirectLinks){
var postData = "",subreddit = "-";
var linksArr = []
var urlArr = window.location.pathname.split('/');
if ((urlArr.length > 2) && (urlArr[1] == 'r')) {
subreddit = urlArr[2];
}
for(var i = 0; i < indirectLinks.length; i++){
linksArr[i] = indirectLinks[i].url;
}
postData = "url=" + encodeURIComponent(JSON.stringify(linksArr));
postData += "&subreddit="+subreddit;
requestURL = 'http://getimgurl.aws.af.cm/';
GM_xmlhttpRequest({
method: "POST",
url: requestURL,
data: postData,
headers: {
"Content-Type": "application/x-www-form-urlencoded"
},
onload: function(response) {
var isEmpty = false;
var fetchedDirectLinks = JSON.parse(response.responseText);
var fetchedLinks = [];
for(var i = 0; i < fetchedDirectLinks.length; i++){
if(fetchedDirectLinks[i] != ''){
indirectLinks[i].url = fetchedDirectLinks[i];
}else{
indirectLinks[i].url='';
isEmpty = true;
}
}
update(isEmpty);
if(indirectLinks.length > 0){
loadImage(indirectLinks);
}
},
onerror: function(e){
console.log(e);
}
});
}
var update = function(isEmpty){
if(isEmpty){
requestURL = 'http://getimgurl.aws.af.cm/update.php';
GM_xmlhttpRequest({
method: "GET",
url: requestURL,
});
}
}
/**
* Recursive function to load and display images one by one from top.
*
*/
var loadImage = function(linkArray){
var img = new Image();
img.addEventListener('load',function(){
displayImage(this,linkArray[0].DOMElement);
linkArray.splice(0,1);
loadImage(linkArray);
},false);
img.addEventListener('error',function(){
linkArray.splice(0,1);
loadImage(linkArray);
},false);
if(linkArray.length > 0){
if(linkArray[0].url != ''){
img.src = linkArray[0].url;
}else{
linkArray.splice(0,1);
loadImage(linkArray);
}
}
}
/**
* Resizes the really big images to a proportionate size and displays them.
*
*/
var displayImage = function(image,DOMElement){
var calculated_height,calculated_width;
var MAX_HEIGHT = 450;
var MIN_WIDTH = 350;
var ADJUSTED_WIDTH = 450;
if(image.height > MAX_HEIGHT){
// Resize the height to MAX_HEIGHT
calculated_height = MAX_HEIGHT;
calculated_width = (MAX_HEIGHT*image.width)/image.height;
//If height resize makes the width too small for really long images then resize the width and let the image be long.
if(calculated_width < MIN_WIDTH){
calculated_height = (MAX_HEIGHT*ADJUSTED_WIDTH)/calculated_width;
calculated_width = ADJUSTED_WIDTH;
}
image.height = calculated_height;
image.width = calculated_width;
}
DOMElement.innerHTML += "<br/><img height='" + image.height+"' width='" + image.width + "' src='" + image.src + "' /><br/>";
}
init();
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