/**
* MatchFormat.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.fmt.MatchFormat',
[
'tinymce.core.fmt.FormatUtils'
],
function (FormatUtils) {
var isEq = FormatUtils.isEq;
var matchesUnInheritedFormatSelector = function (ed, node, name) {
var formatList = ed.formatter.get(name);
if (formatList) {
for (var i = 0; i < formatList.length; i++) {
if (formatList[i].inherit === false && ed.dom.is(node, formatList[i].selector)) {
return true;
}
}
}
return false;
};
var matchParents = function (editor, node, name, vars) {
var root = editor.dom.getRoot();
if (node === root) {
return false;
}
// Find first node with similar format settings
node = editor.dom.getParent(node, function (node) {
if (matchesUnInheritedFormatSelector(editor, node, name)) {
return true;
}
return node.parentNode === root || !!matchNode(editor, node, name, vars, true);
});
// Do an exact check on the similar format element
return matchNode(editor, node, name, vars);
};
var matchName = function (dom, node, format) {
// Check for inline match
if (isEq(node, format.inline)) {
return true;
}
// Check for block match
if (isEq(node, format.block)) {
return true;
}
// Check for selector match
if (format.selector) {
return node.nodeType === 1 && dom.is(node, format.selector);
}
};
var matchItems = function (dom, node, format, itemName, similar, vars) {
var key, value, items = format[itemName], i;
// Custom match
if (format.onmatch) {
return format.onmatch(node, format, itemName);
}
// Check all items
if (items) {
// Non indexed object
if (typeof items.length === 'undefined') {
for (key in items) {
if (items.hasOwnProperty(key)) {
if (itemName === 'attributes') {
value = dom.getAttrib(node, key);
} else {
value = FormatUtils.getStyle(dom, node, key);
}
if (similar && !value && !format.exact) {
return;
}
if ((!similar || format.exact) && !isEq(value, FormatUtils.normalizeStyleValue(dom, FormatUtils.replaceVars(items[key], vars), key))) {
return;
}
}
}
} else {
// Only one match needed for indexed arrays
for (i = 0; i < items.length; i++) {
if (itemName === 'attributes' ? dom.getAttrib(node, items[i]) : FormatUtils.getStyle(dom, node, items[i])) {
return format;
}
}
}
}
return format;
};
var matchNode = function (ed, node, name, vars, similar) {
var formatList = ed.formatter.get(name), format, i, x, classes, dom = ed.dom;
if (formatList && node) {
// Check each format in list
for (i = 0; i < formatList.length; i++) {
format = formatList[i];
// Name name, attributes, styles and classes
if (matchName(ed.dom, node, format) && matchItems(dom, node, format, 'attributes', similar, vars) && matchItems(dom, node, format, 'styles', similar, vars)) {
// Match classes
if ((classes = format.classes)) {
for (x = 0; x < classes.length; x++) {
if (!ed.dom.hasClass(node, classes[x])) {
return;
}
}
}
return format;
}
}
}
};
var match = function (editor, name, vars, node) {
var startNode;
// Check specified node
if (node) {
return matchParents(editor, node, name, vars);
}
// Check selected node
node = editor.selection.getNode();
if (matchParents(editor, node, name, vars)) {
return true;
}
// Check start node if it's different
startNode = editor.selection.getStart();
if (startNode !== node) {
if (matchParents(editor, startNode, name, vars)) {
return true;
}
}
return false;
};
var matchAll = function (editor, names, vars) {
var startElement, matchedFormatNames = [], checkedMap = {};
// Check start of selection for formats
startElement = editor.selection.getStart();
editor.dom.getParent(startElement, function (node) {
var i, name;
for (i = 0; i < names.length; i++) {
name = names[i];
if (!checkedMap[name] && matchNode(editor, node, name, vars)) {
checkedMap[name] = true;
matchedFormatNames.push(name);
}
}
}, editor.dom.getRoot());
return matchedFormatNames;
};
var canApply = function (editor, name) {
var formatList = editor.formatter.get(name), startNode, parents, i, x, selector, dom = editor.dom;
if (formatList) {
startNode = editor.selection.getStart();
parents = FormatUtils.getParents(dom, startNode);
for (x = formatList.length - 1; x >= 0; x--) {
selector = formatList[x].selector;
// Format is not selector based then always return TRUE
// Is it has a defaultBlock then it's likely it can be applied for example align on a non block element line
if (!selector || formatList[x].defaultBlock) {
return true;
}
for (i = parents.length - 1; i >= 0; i--) {
if (dom.is(parents[i], selector)) {
return true;
}
}
}
}
return false;
};
return {
matchNode: matchNode,
matchName: matchName,
match: match,
matchAll: matchAll,
canApply: canApply,
matchesUnInheritedFormatSelector: matchesUnInheritedFormatSelector
};
}
);
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