/**
* FindReplaceText.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
*/
/*jshint smarttabs:true, undef:true, unused:true, latedef:true, curly:true, bitwise:true */
/*eslint no-labels:0, no-constant-condition: 0 */
define(
'tinymce.plugins.searchreplace.core.FindReplaceText',
[
],
function () {
function isContentEditableFalse(node) {
return node && node.nodeType === 1 && node.contentEditable === "false";
}
// Based on work developed by: James Padolsey http://james.padolsey.com
// released under UNLICENSE that is compatible with LGPL
// TODO: Handle contentEditable edgecase:
// <p>text<span contentEditable="false">text<span contentEditable="true">text</span>text</span>text</p>
function findAndReplaceDOMText(regex, node, replacementNode, captureGroup, schema) {
var m, matches = [], text, count = 0, doc;
var blockElementsMap, hiddenTextElementsMap, shortEndedElementsMap;
doc = node.ownerDocument;
blockElementsMap = schema.getBlockElements(); // H1-H6, P, TD etc
hiddenTextElementsMap = schema.getWhiteSpaceElements(); // TEXTAREA, PRE, STYLE, SCRIPT
shortEndedElementsMap = schema.getShortEndedElements(); // BR, IMG, INPUT
function getMatchIndexes(m, captureGroup) {
captureGroup = captureGroup || 0;
if (!m[0]) {
throw 'findAndReplaceDOMText cannot handle zero-length matches';
}
var index = m.index;
if (captureGroup > 0) {
var cg = m[captureGroup];
if (!cg) {
throw 'Invalid capture group';
}
index += m[0].indexOf(cg);
m[0] = cg;
}
return [index, index + m[0].length, [m[0]]];
}
function getText(node) {
var txt;
if (node.nodeType === 3) {
return node.data;
}
if (hiddenTextElementsMap[node.nodeName] && !blockElementsMap[node.nodeName]) {
return '';
}
txt = '';
if (isContentEditableFalse(node)) {
return '\n';
}
if (blockElementsMap[node.nodeName] || shortEndedElementsMap[node.nodeName]) {
txt += '\n';
}
if ((node = node.firstChild)) {
do {
txt += getText(node);
} while ((node = node.nextSibling));
}
return txt;
}
function stepThroughMatches(node, matches, replaceFn) {
var startNode, endNode, startNodeIndex,
endNodeIndex, innerNodes = [], atIndex = 0, curNode = node,
matchLocation = matches.shift(), matchIndex = 0;
out: while (true) {
if (blockElementsMap[curNode.nodeName] || shortEndedElementsMap[curNode.nodeName] || isContentEditableFalse(curNode)) {
atIndex++;
}
if (curNode.nodeType === 3) {
if (!endNode && curNode.length + atIndex >= matchLocation[1]) {
// We've found the ending
endNode = curNode;
endNodeIndex = matchLocation[1] - atIndex;
} else if (startNode) {
// Intersecting node
innerNodes.push(curNode);
}
if (!startNode && curNode.length + atIndex > matchLocation[0]) {
// We've found the match start
startNode = curNode;
startNodeIndex = matchLocation[0] - atIndex;
}
atIndex += curNode.length;
}
if (startNode && endNode) {
curNode = replaceFn({
startNode: startNode,
startNodeIndex: startNodeIndex,
endNode: endNode,
endNodeIndex: endNodeIndex,
innerNodes: innerNodes,
match: matchLocation[2],
matchIndex: matchIndex
});
// replaceFn has to return the node that replaced the endNode
// and then we step back so we can continue from the end of the
// match:
atIndex -= (endNode.length - endNodeIndex);
startNode = null;
endNode = null;
innerNodes = [];
matchLocation = matches.shift();
matchIndex++;
if (!matchLocation) {
break; // no more matches
}
} else if ((!hiddenTextElementsMap[curNode.nodeName] || blockElementsMap[curNode.nodeName]) && curNode.firstChild) {
if (!isContentEditableFalse(curNode)) {
// Move down
curNode = curNode.firstChild;
continue;
}
} else if (curNode.nextSibling) {
// Move forward:
curNode = curNode.nextSibling;
continue;
}
// Move forward or up:
while (true) {
if (curNode.nextSibling) {
curNode = curNode.nextSibling;
break;
} else if (curNode.parentNode !== node) {
curNode = curNode.parentNode;
} else {
break out;
}
}
}
}
/**
* Generates the actual replaceFn which splits up text nodes
* and inserts the replacement element.
*/
function genReplacer(nodeName) {
var makeReplacementNode;
if (typeof nodeName !== 'function') {
var stencilNode = nodeName.nodeType ? nodeName : doc.createElement(nodeName);
makeReplacementNode = function (fill, matchIndex) {
var clone = stencilNode.cloneNode(false);
clone.setAttribute('data-mce-index', matchIndex);
if (fill) {
clone.appendChild(doc.createTextNode(fill));
}
return clone;
};
} else {
makeReplacementNode = nodeName;
}
return function (range) {
var before, after, parentNode, startNode = range.startNode,
endNode = range.endNode, matchIndex = range.matchIndex;
if (startNode === endNode) {
var node = startNode;
parentNode = node.parentNode;
if (range.startNodeIndex > 0) {
// Add `before` text node (before the match)
before = doc.createTextNode(node.data.substring(0, range.startNodeIndex));
parentNode.insertBefore(before, node);
}
// Create the replacement node:
var el = makeReplacementNode(range.match[0], matchIndex);
parentNode.insertBefore(el, node);
if (range.endNodeIndex < node.length) {
// Add `after` text node (after the match)
after = doc.createTextNode(node.data.substring(range.endNodeIndex));
parentNode.insertBefore(after, node);
}
node.parentNode.removeChild(node);
return el;
}
// Replace startNode -> [innerNodes...] -> endNode (in that order)
before = doc.createTextNode(startNode.data.substring(0, range.startNodeIndex));
after = doc.createTextNode(endNode.data.substring(range.endNodeIndex));
var elA = makeReplacementNode(startNode.data.substring(range.startNodeIndex), matchIndex);
var innerEls = [];
for (var i = 0, l = range.innerNodes.length; i < l; ++i) {
var innerNode = range.innerNodes[i];
var innerEl = makeReplacementNode(innerNode.data, matchIndex);
innerNode.parentNode.replaceChild(innerEl, innerNode);
innerEls.push(innerEl);
}
var elB = makeReplacementNode(endNode.data.substring(0, range.endNodeIndex), matchIndex);
parentNode = startNode.parentNode;
parentNode.insertBefore(before, startNode);
parentNode.insertBefore(elA, startNode);
parentNode.removeChild(startNode);
parentNode = endNode.parentNode;
parentNode.insertBefore(elB, endNode);
parentNode.insertBefore(after, endNode);
parentNode.removeChild(endNode);
return elB;
};
}
text = getText(node);
if (!text) {
return;
}
if (regex.global) {
while ((m = regex.exec(text))) {
matches.push(getMatchIndexes(m, captureGroup));
}
} else {
m = text.match(regex);
matches.push(getMatchIndexes(m, captureGroup));
}
if (matches.length) {
count = matches.length;
stepThroughMatches(node, matches, genReplacer(replacementNode));
}
return count;
}
return {
findAndReplaceDOMText: findAndReplaceDOMText
};
}
);
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