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// Copyright 2008 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* @fileoverview Utilities for working with ranges comprised of multiple
* sub-ranges.
*
* @author robbyw@google.com (Robby Walker)
* @author jparent@google.com (Julie Parent)
*/
goog.provide('goog.dom.AbstractMultiRange');
goog.require('goog.array');
goog.require('goog.dom');
goog.require('goog.dom.AbstractRange');
/**
* Creates a new multi range with no properties. Do not use this
* constructor: use one of the goog.dom.Range.createFrom* methods instead.
* @constructor
* @extends {goog.dom.AbstractRange}
*/
goog.dom.AbstractMultiRange = function() {
};
goog.inherits(goog.dom.AbstractMultiRange, goog.dom.AbstractRange);
/** @override */
goog.dom.AbstractMultiRange.prototype.containsRange = function(
otherRange, opt_allowPartial) {
// TODO(user): This will incorrectly return false if two (or more) adjacent
// elements are both in the control range, and are also in the text range
// being compared to.
var ranges = this.getTextRanges();
var otherRanges = otherRange.getTextRanges();
var fn = opt_allowPartial ? goog.array.some : goog.array.every;
return fn(otherRanges, function(otherRange) {
return goog.array.some(ranges, function(range) {
return range.containsRange(otherRange, opt_allowPartial);
});
});
};
/** @override */
goog.dom.AbstractMultiRange.prototype.insertNode = function(node, before) {
if (before) {
goog.dom.insertSiblingBefore(node, this.getStartNode());
} else {
goog.dom.insertSiblingAfter(node, this.getEndNode());
}
return node;
};
/** @override */
goog.dom.AbstractMultiRange.prototype.surroundWithNodes = function(startNode,
endNode) {
this.insertNode(startNode, true);
this.insertNode(endNode, false);
};
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