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