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GooglePlay direct screenshot links

Shows all the screenshots without the scrollbox and adds direct links for fullsized versions

当前为 2019-07-02 提交的版本，查看 最新版本。

// ==UserScript==
// @name          GooglePlay direct screenshot links
// @description   Shows all the screenshots without the scrollbox and adds direct links for fullsized versions
// @include       https://play.google.com/store*
// @version       1.0.9
// @author        wOxxOm
// @namespace     wOxxOm.scripts
// @license       MIT License
// @run-at        document-start
// ==/UserScript==

const GALLERY_ATTR = 'data-slideable-portion-heuristic-width';
const GALLERY_SELECTOR = `[${GALLERY_ATTR}]`;

onMutation([{
  addedNodes: [document.body],
  target: document.documentElement,
}]);
new MutationObserver(onMutation)
  .observe(document, {subtree:true, childList:true});

function onMutation(mutations) {
  for (const m of mutations) {
    let node = m.target;
    if (!node.hasAttribute(GALLERY_ATTR)) {
      for (let i = 0; node; (node = m.addedNodes[i++])) {
        if (node.localName === 'c-wiz' || node.getElementsByTagName('c-wiz')[0]) {
          node = node.querySelector(GALLERY_SELECTOR);
          if (node)
            break;
        }
      }
    }
    if (node) {
      requestAnimationFrame(() => {
        node.outerHTML = '<div>' + [...node.getElementsByTagName('img')].map(makeImageHtml) + '</div>';
      });
      break;
    }
  }
}

function makeImageHtml(img) {
  const src = img.dataset.src || (img.srcset || '').split(' ', 1)[0] || img.src || '';
  return img.nextElementSibling
         ? img.parentNode.outerHTML
         : `<a href="${src.replace(/=.*/, '=h900')}"><img src="${src.replace(/=.*/, '=h420')}"></a>`;
}