From ab793a58b68b2f7c38dcb45eaf60114267e77570 Mon Sep 17 00:00:00 2001
From: Nicholas L <nicholas-l@users.noreply.github.com>
Date: Sun, 17 Jan 2016 18:52:51 +1300
Subject: [PATCH] Remove goog.array.isSorted

---
 src/ol/array.js              | 13 +++++++++++++
 src/ol/source/imagesource.js |  3 +--
 src/ol/tilegrid/tilegrid.js  |  3 +--
 3 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/src/ol/array.js b/src/ol/array.js
index 682b78cf98..129b8484f2 100644
--- a/src/ol/array.js
+++ b/src/ol/array.js
@@ -264,3 +264,16 @@ ol.array.findIndex = function(arr, func, opt_thisArg) {
   }
   return -1;
 }
+
+ol.array.isSorted = function(arr, opt_func, opt_strict) {
+  var compare = opt_func || function(a, b) {
+    return a > b ? 1 : a < b ? -1 : 0;
+  };
+  return arr.every(function(currentVal, index) {
+    if (index === 0) {
+      return true;
+    }
+    var res = compare(arr[index - 1], currentVal);
+    return !(res > 0 ||  opt_strict && res === 0);
+  });
+}
diff --git a/src/ol/source/imagesource.js b/src/ol/source/imagesource.js
index 12e4e6b15f..02cd6bc2fd 100644
--- a/src/ol/source/imagesource.js
+++ b/src/ol/source/imagesource.js
@@ -1,7 +1,6 @@
 goog.provide('ol.source.Image');
 goog.provide('ol.source.ImageEvent');
 
-goog.require('goog.array');
 goog.require('goog.asserts');
 goog.require('goog.events.Event');
 goog.require('ol.Attribution');
@@ -52,7 +51,7 @@ ol.source.Image = function(options) {
   this.resolutions_ = options.resolutions !== undefined ?
       options.resolutions : null;
   goog.asserts.assert(!this.resolutions_ ||
-      goog.array.isSorted(this.resolutions_,
+      ol.array.isSorted(this.resolutions_,
           function(a, b) {
             return b - a;
           }, true), 'resolutions must be null or sorted in descending order');
diff --git a/src/ol/tilegrid/tilegrid.js b/src/ol/tilegrid/tilegrid.js
index 87df9da396..41ebf2d3c2 100644
--- a/src/ol/tilegrid/tilegrid.js
+++ b/src/ol/tilegrid/tilegrid.js
@@ -1,6 +1,5 @@
 goog.provide('ol.tilegrid.TileGrid');
 
-goog.require('goog.array');
 goog.require('goog.asserts');
 goog.require('goog.object');
 goog.require('ol');
@@ -42,7 +41,7 @@ ol.tilegrid.TileGrid = function(options) {
    * @type {!Array.<number>}
    */
   this.resolutions_ = options.resolutions;
-  goog.asserts.assert(goog.array.isSorted(this.resolutions_, function(a, b) {
+  goog.asserts.assert(ol.array.isSorted(this.resolutions_, function(a, b) {
     return b - a;
   }, true), 'resolutions must be sorted in descending order');