Pixiv Infinite Scroll/Download Links

Adds infinite scroll and inline expansion on the search page and artists' works pages. For manga mode a two-step expansion is used.

目前為 2014-07-11 提交的版本,檢視 最新版本

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

You will need to install an extension such as Tampermonkey to install this script.

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name        Pixiv Infinite Scroll/Download Links
// @description Adds infinite scroll and inline expansion on the search page and artists' works pages. For manga mode a two-step expansion is used.
// @namespace   https://github.com/an-electric-sheep/userscripts
// @match       *://www.pixiv.net/search*
// @match       *://www.pixiv.net/member_illust*
// @version     0.3.1
// @grant       none
// @run-at      document-start
// ==/UserScript==

"use strict";

var Maybe = function (wrapped) {
  if (typeof this !== "object" || Object.getPrototypeOf(this) !== Maybe.prototype) {
    var o = Object.create(Maybe.prototype);
    o.constructor.apply(o, arguments);
    return o;
  }
  
  this.wrapped = wrapped;
}

Maybe.prototype.isEmpty = function(){return null == this.wrapped}
Maybe.prototype.orElse = function(other){return this.isEmpty() ? Maybe(other) : this}
Maybe.prototype.apply = function(f){if(!this.isEmpty()){f.apply(null, [this.wrapped].concat(Array.slice(arguments, 1)))};return this;}
Maybe.prototype.map = function(f){return this.isEmpty() ? this :  Maybe(f.apply(null, [this.wrapped].concat(Array.slice(arguments,1))));}
Maybe.prototype.get = function(){return this.wrapped;}

var paginator; 
var loading = false;

var imgContainerSelector = "._image-items, .image-items, .display_works > ul";

document.addEventListener("DOMContentLoaded", function() {
  for(var e of document.querySelectorAll("iframe, .ad-printservice, .popular-introduction")){e.remove()}
  var sheet = document.querySelector("head").appendChild(document.createElement("style")).sheet;
  
  [
    // global
    "#wrapper {width: unset;}",
    // search page
    ".layout-body {width: 85vw;}",
    // member page
    ".layout-a {width: unset;}",
    ".layout-a .layout-column-2 {width: calc(100vw - 190px);}",
    // member works list
    ".display_works {width: unset;}",
    ".display_works .image-item {float: none; }",
    // search and member works list
    "._image-items, .image-items, .display_works > ul {display: flex;flex-wrap: wrap;}",
    ".image-item img {padding: 0px; border: none;}",
    ".inline-expandable {cursor: pointer;}",
    ".image-item.expanded {width: 100%; height: unset;}",
    ".image-item.expanded img {max-width: -moz-available;}",
    ".manga-item {background-color: #f3f3f3 !important;}",
    ".image-item img.manga-medium {max-width: 156px; max-height: 230px; cursor: pointer;}",
    // animated content inlined in the search page
    ".exploded-animation-scroller {overflow-x: auto; width: 100%; margin: 5px 0px; box-shadow: 0px 0px 4px 1px #444;}",
    ".exploded-animation {display: flex; width: -moz-fit-content; }",
    ".exploded-animation img {margin-left: 5px;}",
    ".control-elements {display: flex; justify-content: space-around;align-items: center;}",
    ".control-elements > * {position: relative;}",
  ].forEach(r => sheet.insertRule(r,0))
 
  paginator = Maybe(document.querySelectorAll(".pager-container")).map(paginators => paginators[paginators.length-1]).get();
  
  window.addEventListener("scroll", isNextNeeded)
  window.addEventListener("resize", isNextNeeded)
  for(var e of document.querySelectorAll(".image-item")){customizeImageItem(e)}
  isNextNeeded();
})



function inViewport (el) {

    var rect = el.getBoundingClientRect();

    return (
        rect.top >= 0 &&
        rect.left >= 0 &&
        rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) && 
        rect.right <= (window.innerWidth || document.documentElement.clientWidth)
    );
}

function mangaItemExpand() {
  this.removeEventListener("click", mangaItemExpand)
  
  var container = this.parentElement;
  
  var newImg = document.createElement("img");
  // just try to load the big image, this may fail for some older images, just expand in that case
  newImg.src = this.src.replace(/(_p\d+)/, "_big$1")
  newImg.addEventListener("load", () => {container.replaceChild(newImg, this);container.classList.add("expanded")})
  newImg.addEventListener("error", () => container.classList.add("expanded"))
  newImg.className = "manga"
}


function insertMangaItems(parentItem,url) {   
  var req = new XMLHttpRequest
  req.open("get", url)
  req.onload = function() {
    var rsp = this.responseXML
    
    var nextItem = parentItem.nextSibling
    
    for(var e of rsp.querySelectorAll(".item-container")) {
      let mediumImg = e.querySelector(".image")
      let bigUrl = e.querySelector(".full-size-container").href
        
      let item = document.createElement("li")
      item.className = "image-item manga-item"
      let img = document.createElement("img")
      img.src = mediumImg.dataset.src
      img.className = "manga-medium"
      img.addEventListener("click", mangaItemExpand)
      item.appendChild(img)
      
      parentItem.parentNode.insertBefore(item, nextItem)
    }
  }
  req.responseType = "document"
  req.send()
  
}


function insertAnimationItems(container, mediumDoc) {
  var script = mediumDoc.querySelector("#wrapper script")
  // it's not a strong sandbox. it just avoids the loaded script writing to the main window
  var sandbox = document.createElement("iframe")
  sandbox.src = window.location.href
  sandbox.seamless = true
  sandbox.setAttribute("srcdoc", "<!DOCTYPE html><html><head><script async src='https://cdn.jsdelivr.net/jszip/2.2.2/jszip.min.js'></script><script>window.pixiv = {context: {}}</script><script>"+ script.firstChild.data +"</script></head></html>")
  sandbox.onload = () => {
    var sandboxWindow = sandbox.contentWindow
    var illustData = sandboxWindow.pixiv.context.ugokuIllustFullscreenData
    var req = new sandboxWindow.XMLHttpRequest
    req.open("get", illustData.src)
    req.responseType = "arraybuffer"
    req.onload = function () {
      var controlElements = document.createElement("div")
      controlElements.className = "control-elements"
      var oldElements = document.createElement("div")
      while(container.hasChildNodes()){oldElements.appendChild(container.firstChild)}
      
      controlElements.appendChild(oldElements)
      container.appendChild(controlElements)
      
      var downloadInfo = document.createElement("div")
      
      
    
      var buffer = this.response
      var zip = new sandboxWindow.JSZip(buffer)
      
      var downloadLink = document.createElement("a")
      
      downloadLink.className = "animation-download"
      downloadLink.innerHTML = downloadLink.download = sandboxWindow.pixiv.context.illustId + ".zip"
      
      downloadInfo.appendChild(document.createTextNode("Download: "))
      downloadInfo.appendChild(downloadLink)
      downloadInfo.appendChild(document.createElement("br"))
      downloadInfo.appendChild(document.createTextNode("pixiv2webm and pixiv2gif available "))
      downloadInfo.appendChild(Maybe(document.createElement("a")).apply(e => {e.href = "https://github.com/an-electric-sheep/userscripts"; e.innerHTML = "on github"}).get())
      controlElements.appendChild(downloadInfo)
      
      var scrollContainer = document.createElement("div")
      var explodedAnimation = document.createElement("div")
      scrollContainer.className = "exploded-animation-scroller"
      explodedAnimation.className = "exploded-animation"
      
      scrollContainer.appendChild(explodedAnimation)
      container.appendChild(scrollContainer)
      
      var timingInformation = []

      for(var name in zip.files){
        let file = zip.file(name)
        let img = document.createElement("img")
        let imgBuf = file.asArrayBuffer()
        let imgBlob = new Blob([imgBuf])
        
        img.src = URL.createObjectURL(imgBlob)
        timingInformation.push(file.name  +"\t"+ illustData.frames.find((e) => e.file == name).delay)
        explodedAnimation.appendChild(img)
      }
      container.classList.add("expanded")
      
      zip.file("frame_delays.txt", timingInformation.join("\n"))
      
      
      downloadLink.href = URL.createObjectURL(zip.generate({type: "blob"}))
      
      sandbox.remove();
    }
    req.send()
  }
  document.body.appendChild(sandbox)

}

function listItemExpand() {
  var container = this.parentNode
  var mediumLink = container.querySelector("a.work").href
  var req = new XMLHttpRequest
  req.open("get", mediumLink)
  req.onload = function() {
    var rsp = this.responseXML;
    if(rsp.querySelector("._ugoku-illust-player-container")) {
      insertAnimationItems(container, rsp)
    }
    
    Maybe(rsp.querySelector('.works_display a[href*="mode"]')).apply((modeLink) => {
      var modeLinkUrl = modeLink.href
      var mediumSrc = modeLink.querySelector("img").src
      
      var mode = modeLinkUrl.match(/mode=(.+?)&/)[1]
      if(mode == "big") {
        var img = container.querySelector("img")
        img.src = mediumSrc.replace("_m.", ".");
        container.classList.add("expanded")
      }
      
      if(mode == "manga"){
        insertMangaItems(container, modeLinkUrl)
      }
    })
  }
  req.responseType = "document"
  req.send()
  this.removeEventListener("click", listItemExpand)
}

const greasedImageItems = new WeakMap;

function customizeImageItem(e) {
  if(greasedImageItems.has(e))
   return;
  greasedImageItems.set(e, true);
  var workLink = e.querySelector("a.work")

  var img = workLink.querySelector("img")
  img.classList.add("inline-expandable")
  img.dataset.thumbSrc = img.src
  e.insertBefore(img, workLink)
  img.addEventListener("click", listItemExpand)
}

function loadNext() {
  if(loading)
    return;
  loading = true;
  var nextLink = paginator.querySelector("a[rel=next]")
  if(nextLink) {
    var req = new XMLHttpRequest();
    req.open("get", nextLink.href)
    req.onload = function() {
      var rsp = this.responseXML;
      var container = document.querySelector(imgContainerSelector)
      for(var e of rsp.querySelectorAll(".image-item")){
        var imageItem = document.importNode(e, true)
        container.appendChild(imageItem)
        customizeImageItem(imageItem)
      }
      while(paginator.hasChildNodes())
        paginator.firstChild.remove()
      for(var e of rsp.querySelector(".pager-container").childNodes){paginator.appendChild(document.importNode(e, true) )}
      loading = false;
      isNextNeeded();
    }
    req.responseType = "document"
    req.send()
  }
}

function isNextNeeded() {
  if(loading)
    return;

  if(paginator && inViewport(document.querySelector(".image-item:last-child"))) {
    loadNext();
  }
}