TOC

by noromanba 2015-06-22 [2015/06/22 03:16:18]
(Forked from TOC by rikuba)

create table of contents w/ Autopaging

@@ -1,11 +1,12 @@
 /*
  * @title TOC
- * @description Create table of contents work with AutoPagerize, AutoPatchWork and AutoPager (Forked)
+ * @description create table of contents w/ Autopaging
  * @include http://*
- * @license MIT License http://www.opensource.org/licenses/mit-license
- * @contributor rikuba http://let.hatelabo.jp/rikuba/let/gYC-yqG0xYLkFw
+ * @include https://*
+ * @license MIT License http://opensource.org/licenses/MIT
+ * @contributor rikuba  http://let.hatelabo.jp/rikuba/let/gYC-yqG0xYLkFw (Fork of)
  * @author noromanba
- * @require
+ * @javascript_url
  */
 
 // # Changes
@@ -52,20 +53,22 @@
     ].join('\n');
     doc.querySelector('head').appendChild(style);
 
-    doc.addEventListener('AutoPagerize_DOMNodeInserted', function (event) {
-      container.appendChild(createTOC(event.target));
-    }, false);
-    doc.addEventListener('AutoPatchWork.DOMNodeInserted', function (event) {
-      container.appendChild(createTOC(event.target));
-    }, false);
-    doc.addEventListener('AutoPagerAfterInsert', function (event) {
-      container.appendChild(createTOC(event.target));
-    }, false);
+    // TODO replace to MutiotionObserver
+    [
+      'AutoPagerize_DOMNodeInserted',
+      'AutoPatchWork.DOMNodeInserted',
+      'AutoPagerAfterInsert'
+    ].forEach(function (pager) {
+      doc.addEventListener(pager, function (evt) {
+        container.appendChild(createTOC(evt.target));
+      }, false);
+    });
   }
 
   function createTOC(root) {
     var doc = root.ownerDocument || root;
-    var contents = listContainer = doc.createElement('ol');
+    var contents, listContainer;
+    contents = listContainer = doc.createElement('ol');
     var lastLevel = 1;
     Array.prototype.forEach.call(root.querySelectorAll('h1, h2, h3, h4, h5, h6'), function (headline) {
       // create paragraph
@@ -92,4 +95,4 @@
     });
     return contents;
   }
-})();
+})();

• /*
   * @title TOC
   * @description create table of contents w/ Autopaging
   * @include http://*
   * @include https://*
   * @license MIT License http://opensource.org/licenses/MIT
   * @contributor rikuba  http://let.hatelabo.jp/rikuba/let/gYC-yqG0xYLkFw (Fork of)
   * @author noromanba
   * @javascript_url
   */
  
  // # Changes
  // - replace Array generics to prototype call
  // - support AutoPatchWork and AutoPager
  
  (function () {
    init(document);
    Array.prototype.forEach.call(frames, function (frame) {
      try {
        init(frame.document);
      } catch (e) {}
    });
  
    function init(doc) {
      var container = doc.querySelector('#bookmarklet_TOC');
      if (container) {
        container.parentNode.removeChild(container);
        return;
      }
  
      container = doc.createElement('div');
      container.id = 'bookmarklet_TOC';
      container.appendChild(createTOC(doc));
      doc.body.appendChild(container);
  
      var style = doc.createElement('style');
      style.type = 'text/css';
      style.textContent = [
        '#bookmarklet_TOC { background: rgba(0, 0, 0, 0.9); color: #fff;',
        'text-align: left; font: 90%/1.5 sans-serif;',
        'width: 30px; height: 30px; z-index: 256;',
        'max-width: 600px; max-height: 600px; overflow-y: auto;',
        'position: fixed; top: 0; right: 0; margin: 0; padding: 0;',
        '-moz-border-radius: 0 0 0 8px; border-radius: 0 0 0 8px; }',
        '#bookmarklet_TOC:hover { width: auto; height: auto;',
        'padding: 1ex 1em; }',
        '#bookmarklet_TOC ol { list-style: none; display: none;',
        'margin: 0; padding: 0; }',
        '#bookmarklet_TOC ol ol { margin-left: 1.5em; }',
        '#bookmarklet_TOC:hover ol { display: block; }',
        '#bookmarklet_TOC span:hover { cursor: pointer; ',
        'text-decoration: underline; }'
      ].join('\n');
      doc.querySelector('head').appendChild(style);
  
      // TODO replace to MutiotionObserver
      [
        'AutoPagerize_DOMNodeInserted',
        'AutoPatchWork.DOMNodeInserted',
        'AutoPagerAfterInsert'
      ].forEach(function (pager) {
        doc.addEventListener(pager, function (evt) {
          container.appendChild(createTOC(evt.target));
        }, false);
      });
    }
  
    function createTOC(root) {
      var doc = root.ownerDocument || root;
      var contents, listContainer;
      contents = listContainer = doc.createElement('ol');
      var lastLevel = 1;
      Array.prototype.forEach.call(root.querySelectorAll('h1, h2, h3, h4, h5, h6'), function (headline) {
        // create paragraph
        var hLevel = Number(headline.nodeName.slice(1));
        var depth = lastLevel - hLevel; // TODO remove depth
        if (lastLevel < hLevel) {
          while (depth++) { // nest paragraph
            listContainer = (listContainer.hasChildNodes() ? listContainer.lastChild : listContainer.appendChild(doc.createElement('li'))).
              appendChild(doc.createElement('ol'));
          }
        } else if (hLevel < lastLevel) {
          while (depth--) {
            listContainer = listContainer.parentNode.parentNode; // parent <ol>
          }
        }
  
        var title = listContainer.appendChild(doc.createElement('li')).appendChild(doc.createElement('span'));
        title.appendChild(doc.createTextNode(headline.textContent || ''));
        title.addEventListener('click', function () {
          headline.scrollIntoView();
        }, false);
  
        lastLevel = hLevel;
      });
      return contents;
    }
  })();
  

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