(function () {

var defs = {}; // id -> {dependencies, definition, instance (possibly undefined)}

// Used when there is no 'main' module.
// The name is probably (hopefully) unique so minification removes for releases.
var register_3795 = function (id) {
  var module = dem(id);
  var fragments = id.split('.');
  var target = Function('return this;')();
  for (var i = 0; i < fragments.length - 1; ++i) {
    if (target[fragments[i]] === undefined)
      target[fragments[i]] = {};
    target = target[fragments[i]];
  }
  target[fragments[fragments.length - 1]] = module;
};

var instantiate = function (id) {
  var actual = defs[id];
  var dependencies = actual.deps;
  var definition = actual.defn;
  var len = dependencies.length;
  var instances = new Array(len);
  for (var i = 0; i < len; ++i)
    instances[i] = dem(dependencies[i]);
  var defResult = definition.apply(null, instances);
  if (defResult === undefined)
     throw 'module [' + id + '] returned undefined';
  actual.instance = defResult;
};

var def = function (id, dependencies, definition) {
  if (typeof id !== 'string')
    throw 'module id must be a string';
  else if (dependencies === undefined)
    throw 'no dependencies for ' + id;
  else if (definition === undefined)
    throw 'no definition function for ' + id;
  defs[id] = {
    deps: dependencies,
    defn: definition,
    instance: undefined
  };
};

var dem = function (id) {
  var actual = defs[id];
  if (actual === undefined)
    throw 'module [' + id + '] was undefined';
  else if (actual.instance === undefined)
    instantiate(id);
  return actual.instance;
};

var req = function (ids, callback) {
  var len = ids.length;
  var instances = new Array(len);
  for (var i = 0; i < len; ++i)
    instances[i] = dem(ids[i]);
  callback.apply(null, instances);
};

var ephox = {};

ephox.bolt = {
  module: {
    api: {
      define: def,
      require: req,
      demand: dem
    }
  }
};

var define = def;
var require = req;
var demand = dem;
// this helps with minification when using a lot of global references
var defineGlobal = function (id, ref) {
  define(id, [], function () { return ref; });
};
/*jsc
["tinymce.plugins.toc.Plugin","tinymce.core.PluginManager","tinymce.plugins.toc.api.Commands","tinymce.plugins.toc.api.Settings","tinymce.plugins.toc.core.FilterContent","tinymce.plugins.toc.ui.Buttons","global!tinymce.util.Tools.resolve","tinymce.plugins.toc.core.Toc","tinymce.core.dom.DOMUtils","tinymce.core.util.I18n","tinymce.core.util.Tools","tinymce.plugins.toc.core.Guid"]
jsc*/
defineGlobal("global!tinymce.util.Tools.resolve", tinymce.util.Tools.resolve);
/**
 * ResolveGlobal.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.PluginManager',
  [
    'global!tinymce.util.Tools.resolve'
  ],
  function (resolve) {
    return resolve('tinymce.PluginManager');
  }
);

/**
 * ResolveGlobal.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.dom.DOMUtils',
  [
    'global!tinymce.util.Tools.resolve'
  ],
  function (resolve) {
    return resolve('tinymce.dom.DOMUtils');
  }
);

/**
 * ResolveGlobal.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.util.I18n',
  [
    'global!tinymce.util.Tools.resolve'
  ],
  function (resolve) {
    return resolve('tinymce.util.I18n');
  }
);

/**
 * ResolveGlobal.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.core.util.Tools',
  [
    'global!tinymce.util.Tools.resolve'
  ],
  function (resolve) {
    return resolve('tinymce.util.Tools');
  }
);

/**
 * Settings.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.plugins.toc.api.Settings',
  [
  ],
  function () {
    var getTocClass = function (editor) {
      return editor.getParam('toc_class', 'mce-toc');
    };

    var getTocHeader = function (editor) {
      var tagName = editor.getParam('toc_header', 'h2');
      return /^h[1-6]$/.test(tagName) ? tagName : 'h2';
    };

    var getTocDepth = function (editor) {
      var depth = parseInt(editor.getParam('toc_depth', '3'), 10);
      return depth >= 1 && depth <= 9 ? depth : 3;
    };

    return {
      getTocClass: getTocClass,
      getTocHeader: getTocHeader,
      getTocDepth: getTocDepth
    };
  }
);

/**
 * Guid.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.plugins.toc.core.Guid',
  [
  ],
  function () {
    var create = function (prefix) {
      var counter = 0;

      return function () {
        var guid = new Date().getTime().toString(32);
        return prefix + guid + (counter++).toString(32);
      };
    };

    return {
      create: create
    };
  }
);
/**
 * Toc.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.plugins.toc.core.Toc',
  [
    'tinymce.core.dom.DOMUtils',
    'tinymce.core.util.I18n',
    'tinymce.core.util.Tools',
    'tinymce.plugins.toc.api.Settings',
    'tinymce.plugins.toc.core.Guid'
  ],
  function (DOMUtils, I18n, Tools, Settings, Guid) {
    var tocId = Guid.create('mcetoc_');

    var generateSelector = function generateSelector(depth) {
      var i, selector = [];
      for (i = 1; i <= depth; i++) {
        selector.push('h' + i);
      }
      return selector.join(',');
    };

    var hasHeaders = function (editor) {
      return readHeaders(editor).length > 0;
    };

    var readHeaders = function (editor) {
      var tocClass = Settings.getTocClass(editor);
      var headerTag = Settings.getTocHeader(editor);
      var selector = generateSelector(Settings.getTocDepth(editor));
      var headers = editor.$(selector);

      // if headerTag is one of h1-9, we need to filter it out from the set
      if (headers.length && /^h[1-9]$/i.test(headerTag)) {
        headers = headers.filter(function (i, el) {
          return !editor.dom.hasClass(el.parentNode, tocClass);
        });
      }

      return Tools.map(headers, function (h) {
        return {
          id: h.id ? h.id : tocId(),
          level: parseInt(h.nodeName.replace(/^H/i, ''), 10),
          title: editor.$.text(h),
          element: h
        };
      });
    };

    var getMinLevel = function (headers) {
      var i, minLevel = 9;

      for (i = 0; i < headers.length; i++) {
        if (headers[i].level < minLevel) {
          minLevel = headers[i].level;
        }

        // do not proceed if we have reached absolute minimum
        if (minLevel === 1) {
          return minLevel;
        }
      }
      return minLevel;
    };

    var generateTitle = function (tag, title) {
      var openTag = '<' + tag + ' contenteditable="true">';
      var closeTag = '</' + tag + '>';
      return openTag + DOMUtils.DOM.encode(title) + closeTag;
    };

    var generateTocHtml = function (editor) {
      var html = generateTocContentHtml(editor);
      return '<div class="' + editor.dom.encode(Settings.getTocClass(editor)) + '" contenteditable="false">' + html + '</div>';
    };

    var generateTocContentHtml = function (editor) {
      var html = '';
      var headers = readHeaders(editor);
      var prevLevel = getMinLevel(headers) - 1;
      var i, ii, h, nextLevel;

      if (!headers.length) {
        return '';
      }

      html += generateTitle(Settings.getTocHeader(editor), I18n.translate('Table of Contents'));

      for (i = 0; i < headers.length; i++) {
        h = headers[i];
        h.element.id = h.id;
        nextLevel = headers[i + 1] && headers[i + 1].level;

        if (prevLevel === h.level) {
          html += '<li>';
        } else {
          for (ii = prevLevel; ii < h.level; ii++) {
            html += '<ul><li>';
          }
        }

        html += '<a href="#' + h.id + '">' + h.title + '</a>';

        if (nextLevel === h.level || !nextLevel) {
          html += '</li>';

          if (!nextLevel) {
            html += '</ul>';
          }
        } else {
          for (ii = h.level; ii > nextLevel; ii--) {
            html += '</li></ul><li>';
          }
        }

        prevLevel = h.level;
      }

      return html;
    };

    var isEmptyOrOffscren = function (editor, nodes) {
      return !nodes.length || editor.dom.getParents(nodes[0], '.mce-offscreen-selection').length > 0;
    };

    var insertToc = function (editor) {
      var tocClass = Settings.getTocClass(editor);
      var $tocElm = editor.$('.' + tocClass);

      if (isEmptyOrOffscren(editor, $tocElm)) {
        editor.insertContent(generateTocHtml(editor));
      } else {
        updateToc(editor);
      }
    };

    var updateToc = function (editor) {
      var tocClass = Settings.getTocClass(editor);
      var $tocElm = editor.$('.' + tocClass);

      if ($tocElm.length) {
        editor.undoManager.transact(function () {
          $tocElm.html(generateTocContentHtml(editor));
        });
      }
    };

    return {
      hasHeaders: hasHeaders,
      insertToc: insertToc,
      updateToc: updateToc
    };
  }
);
/**
 * Commands.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.plugins.toc.api.Commands',
  [
    'tinymce.plugins.toc.core.Toc'
  ],
  function (Toc) {
    var register = function (editor) {
      editor.addCommand('mceInsertToc', function () {
        Toc.insertToc(editor);
      });

      editor.addCommand('mceUpdateToc', function () {
        Toc.updateToc(editor);
      });
    };

    return {
      register: register
    };
  }
);
/**
 * FilterContent.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.plugins.toc.core.FilterContent',
  [
    'tinymce.plugins.toc.api.Settings'
  ],
  function (Settings) {
    var setup = function (editor) {
      var $ = editor.$, tocClass = Settings.getTocClass(editor);

      editor.on('PreProcess', function (e) {
        var $tocElm = $('.' + tocClass, e.node);
        if ($tocElm.length) {
          $tocElm.removeAttr('contentEditable');
          $tocElm.find('[contenteditable]').removeAttr('contentEditable');
        }
      });

      editor.on('SetContent', function () {
        var $tocElm = $('.' + tocClass);
        if ($tocElm.length) {
          $tocElm.attr('contentEditable', false);
          $tocElm.children(':first-child').attr('contentEditable', true);
        }
      });
    };

    return {
      setup: setup
    };
  }
);
/**
 * Buttons.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.plugins.toc.ui.Buttons',
  [
    'tinymce.plugins.toc.api.Settings',
    'tinymce.plugins.toc.core.Toc'
  ],
  function (Settings, Toc) {
    var toggleState = function (editor) {
      return function (e) {
        var ctrl = e.control;

        editor.on('LoadContent SetContent change', function () {
          ctrl.disabled(editor.readonly || !Toc.hasHeaders(editor));
        });
      };
    };

    var isToc = function (editor) {
      return function (elm) {
        return elm && editor.dom.is(elm, '.' + Settings.getTocClass(editor)) && editor.getBody().contains(elm);
      };
    };

    var register = function (editor) {
      editor.addButton('toc', {
        tooltip: 'Table of Contents',
        cmd: 'mceInsertToc',
        icon: 'toc',
        onPostRender: toggleState(editor)
      });

      editor.addButton('tocupdate', {
        tooltip: 'Update',
        cmd: 'mceUpdateToc',
        icon: 'reload'
      });

      editor.addMenuItem('toc', {
        text: "Table of Contents",
        context: 'insert',
        cmd: 'mceInsertToc',
        onPostRender: toggleState(editor)
      });

      editor.addContextToolbar(isToc(editor), 'tocupdate');
    };

    return {
      register: register
    };
  }
);
/**
 * Plugin.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.plugins.toc.Plugin',
  [
    'tinymce.core.PluginManager',
    'tinymce.plugins.toc.api.Commands',
    'tinymce.plugins.toc.api.Settings',
    'tinymce.plugins.toc.core.FilterContent',
    'tinymce.plugins.toc.ui.Buttons'
  ],
  function (PluginManager, Commands, Settings, FilterContent, Buttons) {
    PluginManager.add('toc', function (editor) {
      Commands.register(editor);
      Buttons.register(editor);
      FilterContent.setup(editor);
    });

    return function () { };
  }
);
dem('tinymce.plugins.toc.Plugin')();
})();