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File: SelectionMatcher.js

/**
 * SelectionMatcher.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2016 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

define(
  'tinymce.themes.inlite.core.SelectionMatcher',
  [
    'tinymce.themes.inlite.core.Matcher',
    'tinymce.themes.inlite.core.Measure'
  ],
  function (Matcher, Measure) {
    // textSelection :: String -> (Editor -> Matcher.result | Null)
    var textSelection = function (id) {
      return function (editor) {
        if (!editor.selection.isCollapsed()) {
          return Matcher.result(id, Measure.getSelectionRect(editor));
        }

        return null;
      };
    };

    // emptyTextBlock :: [Elements], String -> (Editor -> Matcher.result | Null)
    var emptyTextBlock = function (elements, id) {
      return function (editor) {
        var i, textBlockElementsMap = editor.schema.getTextBlockElements();

        for (i = 0; i < elements.length; i++) {
          if (elements[i].nodeName === 'TABLE') {
            return null;
          }
        }

        for (i = 0; i < elements.length; i++) {
          if (elements[i].nodeName in textBlockElementsMap) {
            if (editor.dom.isEmpty(elements[i])) {
              return Matcher.result(id, Measure.getSelectionRect(editor));
            }

            return null;
          }
        }

        return null;
      };
    };

    return {
      textSelection: textSelection,
      emptyTextBlock: emptyTextBlock
    };
  }
);