CaretCandidate.js
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/**
* CaretCandidate.js
*
* Released under LGPL License.
* Copyright (c) 1999-2015 Ephox Corp. All rights reserved
*
* License: http://www.tinymce.com/license
* Contributing: http://www.tinymce.com/contributing
*/
/**
* This module contains logic for handling caret candidates. A caret candidate is
* for example text nodes, images, input elements, cE=false elements etc.
*
* @private
* @class tinymce.caret.CaretCandidate
*/
define("tinymce/caret/CaretCandidate", [
"tinymce/dom/NodeType",
"tinymce/util/Arr",
"tinymce/caret/CaretContainer"
], function(NodeType, Arr, CaretContainer) {
var isContentEditableTrue = NodeType.isContentEditableTrue,
isContentEditableFalse = NodeType.isContentEditableFalse,
isBr = NodeType.isBr,
isText = NodeType.isText,
isInvalidTextElement = NodeType.matchNodeNames('script style textarea'),
isAtomicInline = NodeType.matchNodeNames('img input textarea hr iframe video audio object'),
isTable = NodeType.matchNodeNames('table'),
isCaretContainer = CaretContainer.isCaretContainer;
function isCaretCandidate(node) {
if (isCaretContainer(node)) {
return false;
}
if (isText(node)) {
if (isInvalidTextElement(node.parentNode)) {
return false;
}
return true;
}
return isAtomicInline(node) || isBr(node) || isTable(node) || isContentEditableFalse(node);
}
function isInEditable(node, rootNode) {
for (node = node.parentNode; node && node != rootNode; node = node.parentNode) {
if (isContentEditableFalse(node)) {
return false;
}
if (isContentEditableTrue(node)) {
return true;
}
}
return true;
}
function isAtomicContentEditableFalse(node) {
if (!isContentEditableFalse(node)) {
return false;
}
return Arr.reduce(node.getElementsByTagName('*'), function(result, elm) {
return result || isContentEditableTrue(elm);
}, false) !== true;
}
function isAtomic(node) {
return isAtomicInline(node) || isAtomicContentEditableFalse(node);
}
function isEditableCaretCandidate(node, rootNode) {
return isCaretCandidate(node) && isInEditable(node, rootNode);
}
return {
isCaretCandidate: isCaretCandidate,
isInEditable: isInEditable,
isAtomic: isAtomic,
isEditableCaretCandidate: isEditableCaretCandidate
};
});