/**
* RangeNormalizer.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.selection.RangeNormalizer',
[
'global!document',
'tinymce.core.caret.CaretFinder',
'tinymce.core.caret.CaretPosition',
'tinymce.core.caret.CaretUtils'
],
function (document, CaretFinder, CaretPosition, CaretUtils) {
var createRange = function (sc, so, ec, eo) {
var rng = document.createRange();
rng.setStart(sc, so);
rng.setEnd(ec, eo);
return rng;
};
// If you triple click a paragraph in this case:
// <blockquote><p>a</p></blockquote><p>b</p>
// It would become this range in webkit:
// <blockquote><p>[a</p></blockquote><p>]b</p>
// We would want it to be:
// <blockquote><p>[a]</p></blockquote><p>b</p>
// Since it would otherwise produces spans out of thin air on insertContent for example.
var normalizeBlockSelectionRange = function (rng) {
var startPos = CaretPosition.fromRangeStart(rng);
var endPos = CaretPosition.fromRangeEnd(rng);
var rootNode = rng.commonAncestorContainer;
return CaretFinder.fromPosition(false, rootNode, endPos)
.map(function (newEndPos) {
if (!CaretUtils.isInSameBlock(startPos, endPos, rootNode) && CaretUtils.isInSameBlock(startPos, newEndPos, rootNode)) {
return createRange(startPos.container(), startPos.offset(), newEndPos.container(), newEndPos.offset());
} else {
return rng;
}
}).getOr(rng);
};
var normalizeBlockSelection = function (rng) {
return rng.collapsed ? rng : normalizeBlockSelectionRange(rng);
};
var normalize = function (rng) {
return normalizeBlockSelection(rng);
};
return {
normalize: normalize
};
}
);
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