| // 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) |
| */ |
| |
| |
| 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); |
| }; |