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define([
'summernote/core/agent',
'summernote/core/func',
'summernote/core/list',
'summernote/core/dom'
], function (agent, func, list, dom) {
/**
* @class editing.Style
*
* Style
*
*/
var Style = function () {
/**
* @method jQueryCSS
*
* [workaround] for old jQuery
* passing an array of style properties to .css()
* will result in an object of property-value pairs.
* (compability with version < 1.9)
*
* @private
* @param {jQuery} $obj
* @param {Array} propertyNames - An array of one or more CSS properties.
* @return {Object}
*/
var jQueryCSS = function ($obj, propertyNames) {
if (agent.jqueryVersion < 1.9) {
var result = {};
$.each(propertyNames, function (idx, propertyName) {
result[propertyName] = $obj.css(propertyName);
});
return result;
}
return $obj.css.call($obj, propertyNames);
};
/**
* returns style object from node
*
* @param {jQuery} $node
* @return {Object}
*/
this.fromNode = function ($node) {
var properties = ['font-family', 'font-size', 'text-align', 'list-style-type', 'line-height'];
var styleInfo = jQueryCSS($node, properties) || {};
styleInfo['font-size'] = parseInt(styleInfo['font-size'], 10);
return styleInfo;
};
/**
* paragraph level style
*
* @param {WrappedRange} rng
* @param {Object} styleInfo
*/
this.stylePara = function (rng, styleInfo) {
$.each(rng.nodes(dom.isPara, {
includeAncestor: true
}), function (idx, para) {
$(para).css(styleInfo);
});
};
/**
* insert and returns styleNodes on range.
*
* @param {WrappedRange} rng
* @param {Object} [options] - options for styleNodes
* @param {String} [options.nodeName] - default: `SPAN`
* @param {Boolean} [options.expandClosestSibling] - default: `false`
* @param {Boolean} [options.onlyPartialContains] - default: `false`
* @return {Node[]}
*/
this.styleNodes = function (rng, options) {
rng = rng.splitText();
var nodeName = options && options.nodeName || 'SPAN';
var expandClosestSibling = !!(options && options.expandClosestSibling);
var onlyPartialContains = !!(options && options.onlyPartialContains);
if (rng.isCollapsed()) {
return [rng.insertNode(dom.create(nodeName))];
}
var pred = dom.makePredByNodeName(nodeName);
var nodes = rng.nodes(dom.isText, {
fullyContains: true
}).map(function (text) {
return dom.singleChildAncestor(text, pred) || dom.wrap(text, nodeName);
});
if (expandClosestSibling) {
if (onlyPartialContains) {
var nodesInRange = rng.nodes();
// compose with partial contains predication
pred = func.and(pred, function (node) {
return list.contains(nodesInRange, node);
});
}
return nodes.map(function (node) {
var siblings = dom.withClosestSiblings(node, pred);
var head = list.head(siblings);
var tails = list.tail(siblings);
$.each(tails, function (idx, elem) {
dom.appendChildNodes(head, elem.childNodes);
dom.remove(elem);
});
return list.head(siblings);
});
} else {
return nodes;
}
};
/**
* get current style on cursor
*
* @param {WrappedRange} rng
* @return {Object} - object contains style properties.
*/
this.current = function (rng) {
var $cont = $(dom.isText(rng.sc) ? rng.sc.parentNode : rng.sc);
var styleInfo = this.fromNode($cont);
// document.queryCommandState for toggle state
styleInfo['font-bold'] = document.queryCommandState('bold') ? 'bold' : 'normal';
styleInfo['font-italic'] = document.queryCommandState('italic') ? 'italic' : 'normal';
styleInfo['font-underline'] = document.queryCommandState('underline') ? 'underline' : 'normal';
styleInfo['font-strikethrough'] = document.queryCommandState('strikeThrough') ? 'strikethrough' : 'normal';
styleInfo['font-superscript'] = document.queryCommandState('superscript') ? 'superscript' : 'normal';
styleInfo['font-subscript'] = document.queryCommandState('subscript') ? 'subscript' : 'normal';
// list-style-type to list-style(unordered, ordered)
if (!rng.isOnList()) {
styleInfo['list-style'] = 'none';
} else {
var aOrderedType = ['circle', 'disc', 'disc-leading-zero', 'square'];
var isUnordered = $.inArray(styleInfo['list-style-type'], aOrderedType) > -1;
styleInfo['list-style'] = isUnordered ? 'unordered' : 'ordered';
}
var para = dom.ancestor(rng.sc, dom.isPara);
if (para && para.style['line-height']) {
styleInfo['line-height'] = para.style.lineHeight;
} else {
var lineHeight = parseInt(styleInfo['line-height'], 10) / parseInt(styleInfo['font-size'], 10);
styleInfo['line-height'] = lineHeight.toFixed(1);
}
styleInfo.anchor = rng.isOnAnchor() && dom.ancestor(rng.sc, dom.isAnchor);
styleInfo.ancestors = dom.listAncestor(rng.sc, dom.isEditable);
styleInfo.range = rng;
return styleInfo;
};
};
return Style;
});
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