Image Proxier

Replaces images from stack.imgur.com and collates them
当前为 2018-02-19 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         Image Proxier
// @namespace    https://github.com/GrumpyCrouton/Userscripts
// @version      1.2
// @description  Replaces images from stack.imgur.com and collates them
// @author       GrumpyCrouton
// @match        *://*.stackoverflow.com/*
// ==/UserScript==

// OPTIONS
var convertImages = true;
var convertLinks = true;

var frequencyInSeconds = 5;

var addProxy = true;

var proxy = "https://web.archive.org/web/";
var matchURLs = ["https://i.stack.imgur.com/", "https://i.imgur.com/"];


// DO NOT ALTER BELOW THIS LINE

var modal = document.createElement("div");
modal.id = "image-proxier-modal";
modal.style.position = "fixed";
modal.style.width = "800px";
modal.style.height = "600px";
modal.style.top = "50%";
modal.style.left = "50%";
modal.style.marginLeft = "-400px";
modal.style.marginTop = "-300px";
modal.style.border = "2px outset #52575b";
modal.style.zIndex = 999;
modal.style.padding = "5px";
modal.style.background = "white";
modal.style.display = "none";

modal.innerHTML = " 																	\
	<div style='width:100%;text-align:right;'>											\
		<strong><div id='image-proxier-close' style='cursor:pointer;'>X</div></strong>	\
	</div>																				\
	<div style='width:100%;text-align:right;overflow:auto;'>											\
		<img id='image-proxier-magnif'></img>											\
	</div>																				\
";

document.getElementsByTagName("BODY")[0].appendChild(modal);

if(convertImages) {
    replaceImages();
}

function replaceImages() {
    var allImages = document.getElementsByTagName('img');
    for(var i = 0; i < allImages.length ; i++) {
        var sImage = allImages[i];
        var result = containsAny(sImage.src, matchURLs);
        if(result) {
            if(addProxy) {
                sImage.src = proxy + sImage.src;
            }
        }
    }
}

if(convertLinks) {
    replaceLinks();
}

function replaceLinks() {
    var links = document.getElementsByTagName('a');
    for(var i = 0; i < links.length ; i++) {
        var matches = containsAny(links[i].href, matchURLs);
        if(matches) {
            //link variables
            var link = links[i];
            var linkParent = links[i].parentNode;

            //create <img> element
            var image = document.createElement("img");
            if(addProxy) {
                image.src = proxy + link.href;
            } else {
                image.src = link.href;
            }
            image.style.height = "auto";
            image.style.width = "75px";
            image.style.border = "2px outset #52575b";

            //alter <a> element
            if(addProxy) {
                link.setAttribute("link", proxy + link.href);
            }
            link.href = "";
            link.classList.add("image-proxier-image");
            link.innerHTML = "";
            link.style.borderBottom = "none";
            link.style.paddingRight = "3px";

            //attach <img> to <a>
            link.append(image);

            result = linkParent.querySelector('.imageContainer');
            if(!result) {
                //create imageContainer (div) element
                var container = document.createElement("div");
                container.classList.add("imageContainer");
                container.style.backgroundColor = "#d4d4d4";

                container.style.padding = "3px";
                linkParent.prepend(container);
                container.prepend(scriptName());
            }
            //append image to container that exists from last check
            linkParent.querySelector(".imageContainer").appendChild(link);
        }
    }
}

$("#image-proxier-close").click(function(){
	$("#image-proxier-modal").hide();
	return false;
});

$(".image-proxier-image").click(function(){
	var proxierImage = document.querySelector("#image-proxier-magnif");
	proxierImage.src = $(this).attr('link');
	proxierImage.style.width = "800px";
	proxierImage.style.height = "auto";
	proxierImage.style.maxHeight = "550px";
	$("#image-proxier-modal").show();
	return false;
});

$(document).mouseup(function(e)
{
    var container = $("#image-proxier-modal");

    // if the target of the click isn't the container nor a descendant of the container
    if (!container.is(e.target) && container.has(e.target).length === 0) {
        container.hide();
    }
});

function scriptName() {
	var node = document.createElement("div");
	node.style.fontSize = "10px";
	node.style.width = "100%";
	node.innerHTML = "<center><a href='https://github.com/GrumpyCrouton/Userscripts' target='_blank'>Image Proxier</a></center>";
	return node;
}

function containsAny(str, substrings) {
	for (var i = 0; i < substrings.length; i++) {
		if(str.startsWith(substrings[i])) {
			return true;
		}
	}
	return false;
}

setInterval(function() {
    if(convertImages) {
        replaceImages();
        //console.log("Running image replacements.");
    }
    if(convertLinks) {
        replaceLinks();
        //console.log("Running link replacements.");
    }
}, frequencyInSeconds * 1000); // 60 * 1000 milsec
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