Linkifies all images in the tumblr dashboard stream (1280 for png and jpg and 540 for gifs - raw support disabled after Tumblr made then inacessible on 2018-08-09)
当前为
// ==UserScript==
// @name Tumblr Dashboard - clickable links to images
// @namespace tumblr_dashboard_linkify
// @version 1.0.0
// @license GNU AGPLv3
// @description Linkifies all images in the tumblr dashboard stream (1280 for png and jpg and 540 for gifs - raw support disabled after Tumblr made then inacessible on 2018-08-09)
// @author marp
// @homepageURL https://greasyfork.org/en/users/204542-marp
// @include https://www.tumblr.com/dashboard
// @include https://www.tumblr.com/dashboard/*
// @run-at document-end
// ==/UserScript==
function createImageLinks(myDoc, myContext) {
//console.info("createImageLinks: ", myContext);
if (myDoc===null) myDoc= myContext;
if (myDoc===null) return;
if (myContext===null) myContext= myDoc;
var matches;
var tmpstr;
var parentnode;
var newnode;
matches=myDoc.evaluate("//div[contains(@class,'post_content')]//img[contains(@class,'post_media_photo') and (contains(@src,'.jpg') or contains(@src,'.png') or contains(@src,'.gif'))] | " +
"//div[contains(@class,'post_content')]//figure[contains(@class,'tmblr-full')]/img[contains(@src,'.jpg') or contains(@src,'.png') or contains(@src,'.gif')] | " +
"//div[contains(@class,'post_content')]//a[contains(@class,'photoset_photo')]/img[contains(@src,'.jpg') or contains(@src,'.png') or contains(@src,'.gif')]",
myContext, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
for(var i=0, el; (i<matches.snapshotLength); i++) {
el=matches.snapshotItem(i);
if (el) {
try {
// console.info("matched-element: ", el);
tmpstr=getHighResImageURL(el.getAttribute("src"), false);
// console.info("highresurl: ", tmpstr);
parentnode=el.parentNode;
// console.info("parentnode: ", parentnode);
if (parentnode.nodeName.toLowerCase() == "a") {
if (parentnode.hasAttribute("class") &&
(parentnode.getAttribute("class").indexOf("post_media_photo") >= 0 ||
parentnode.getAttribute("class").indexOf("photoset_photo") >= 0) ) {
// console.info("set parentnode href: ", tmpstr);
parentnode.setAttribute("href", tmpstr);
}
// if it is a link type but with other style classes -> do nothing
} else {
newnode = document.createElement("a");
newnode.setAttribute("href", tmpstr);
newnode.setAttribute("target", "_blank");
// console.info("newnode href: ", tmpstr);
parentnode.replaceChild(newnode, el);
newnode.appendChild(el);
// console.info("new child of this parent: ", parentnode);
}
} catch (e) { console.warn("error: ", e) }
}
}
}
// 2018-08-09 - RAW (original upload) images do not seem to be working anymore
function getHighResImageURL(imageurl, isgetraw) {
var result = imageurl;
var tmplen = imageurl.length;
var pos;
if ((imageurl.toLowerCase().lastIndexOf(".jpg") == tmplen-4) ||
(imageurl.toLowerCase().lastIndexOf(".png") == tmplen-4)) {
if (isgetraw) {
result = "https://s3.amazonaws.com/data" +
imageurl.slice(imageurl.indexOf(".tumblr.com/"), imageurl.lastIndexOf("_")) +
"_raw" +
imageurl.substring(imageurl.lastIndexOf("."));
} else {
result = imageurl.replace("_250.","_1280.").replace("_400.","_1280.").replace("_500.","_1280.").replace("_540.","_1280.").replace("_640.","_1280.");
}
}
else if ((imageurl.toLowerCase().lastIndexOf(".gif") == tmplen-4)) {
if (isgetraw) {
result = "https://s3.amazonaws.com/data" +
imageurl.slice(imageurl.indexOf(".tumblr.com/"), imageurl.lastIndexOf("_")) +
"_raw" +
imageurl.substring(imageurl.lastIndexOf("."));
} else {
result = imageurl.replace("_250.","_540.").replace("_400.","_540.").replace("_500.","_540.");
}
}
return result;
}
// create an observer instance and iterate through each individual new node
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(mutation) {
mutation.addedNodes.forEach(function(addedNode) {
createImageLinks(mutation.target.ownerDocument, addedNode);
});
});
});
// configuration of the observer
// NOTE: subtree is false as the wanted nodes are direct children of <ol id="posts"> -> notable performance improvement
var config = { attributes: false, childList: true, characterData: false, subtree: false };
// pass in the target node (<ol> element contains all dashboard posts), as well as the observer options
var postsmatch = document.evaluate("//ol[@id='posts']", document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null);
//console.info("postsmatch: ", postsmatch);
var postsnode = postsmatch.singleNodeValue;
//console.info("postsnode: ", postsnode);
//process already loaded nodes (the initial posts before scrolling down for the first time)
createImageLinks(document, postsnode);
//start the observer for new nodes
observer.observe(postsnode, config);