Incremental Reading

Read. Recite.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

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

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

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

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Incremental Reading
// @namespace    http://tampermonkey.net/
// @version      0.8.0
// @description  Read. Recite.
// @description:en  Read. Recite.
// @author       Feng Ya
// @match        https://www.instapaper.com/read/*
// @grant        GM_addStyle
// ==/UserScript==

(function() {
  'use strict';

  // Your code here...

  GM_addStyle(`
  .mask {
    color: rgba(255, 242, 51, 0.298) !important;
  }

  .wrong {
    color: red !important;
  }

  .correct {
    color: green !important;
  }

  .cloze {
    position: absolute;
    z-index: 9;
    background: transparent;
    border: none;
  }
  `);

  console.log('Incremental Reading for Language Learning.');

  const highlight = {
    add() {
      document.querySelectorAll('span.highlight').forEach(highlight => {
        const id = highlight.getAttribute('data-api-id');
        highlight.insertAdjacentHTML(
          'beforebegin',
          `<input class="cloze" data-api-id="${id}" type="text" style="width: ${
            highlight.offsetWidth
          }px" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false">`
        );
      });
    },
    toggle() {
      document.querySelectorAll('span.highlight').forEach(highlight => {
        highlight.classList.toggle('mask');
      });
    },
  };

  const cloze = {
    add() {
      document.querySelectorAll('.cloze').forEach(cloze => {
        const id = cloze.getAttribute('data-api-id');
        const answer = document.querySelector(
          `span.highlight[data-api-id="${id}"]`
        );
        cloze.addEventListener('keypress', event => {
          answer.classList.remove('wrong');
          answer.classList.remove('correct');

          // Enter or Tab
          if (event.keyCode === 13 || event.keyCode === 9) {
            if (cloze.value !== answer.textContent)
              answer.classList.add('wrong');
            else answer.classList.add('correct');
          }
        });
      });
    },
    clear() {
      document.querySelectorAll('.cloze').forEach(cloze => {
        cloze.parentNode.removeChild(cloze);
      });
    },
  };

  // remove old clozes (used only in development)
  cloze.clear();

  highlight.add();
  highlight.toggle();
  cloze.add();

  let clozeMode = true;

  document.body.addEventListener('click', event => {
    if (event.target.nodeName !== 'BODY') return;

    // Instapaper: Remove Note
    if (document.querySelectorAll('div.highlight_popover.reveal').length > 0)
      return;

    if (clozeMode) {
      cloze.clear();
    } else {
      highlight.add();
      cloze.add();
    }

    highlight.toggle();

    clozeMode = !clozeMode;
  });
})();