From 22e2fba84bac856363bafe863768fdeef246eac9 Mon Sep 17 00:00:00 2001
From: Jason Sanford <jasonsanford@gmail.com>
Date: Tue, 14 Feb 2012 09:29:29 -0700
Subject: [PATCH] Adding "equals" method to LatLngBounds using the preferred
 LatLng.equals method. Much cleaner.

---
 debug/map/bounds-equals.html | 55 ++++++++++++++++++++++++++++++++++++
 src/geo/LatLngBounds.js      |  8 ++++++
 2 files changed, 63 insertions(+)
 create mode 100644 debug/map/bounds-equals.html
diff --git a/debug/map/bounds-equals.html b/debug/map/bounds-equals.html
new file mode 100644
index 00000000..ed7bf2ef
--- /dev/null
+++ b/debug/map/bounds-equals.html
@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<html>
+<head>
+	<title>Leaflet debug page</title>
+
+	<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
+
+	<link rel="stylesheet" href="../../dist/leaflet.css" />
+	<!--[if lte IE 8]><link rel="stylesheet" href="../../dist/leaflet.ie.css" /><![endif]-->
+	
+	<script src="../leaflet-include.js"></script>
+</head>
+<body>
+
+	<div id="map" style="width: 500px; height: 500px;"></div>
+	
+	<button onclick="javascript:capture1();">Capture Bounds 1</button>
+	<button onclick="javascript:capture2();">Capture Bounds 2</button>
+	<button onclick="javascript:testBounds();">Test Bounds</button>
+
+	<script type="text/javascript">
+
+		var cloudmadeUrl = 'http://{s}.tile.cloudmade.com/BC9A493B41014CAABB98F0471D759707/997/256/{z}/{x}/{y}.png',
+			cloudmadeAttribution = 'Map data &copy; 2011 OpenStreetMap contributors, Imagery &copy; 2011 CloudMade',
+			cloudmade = new L.TileLayer(cloudmadeUrl, {maxZoom: 18, attribution: cloudmadeAttribution}),
+			bounds = new L.LatLngBounds(new L.LatLng(49.5, -11.3), new L.LatLng(61.2, 2.5));
+		
+		var bounds1, bounds2;
+	
+		var map = new L.Map('map', {
+			center: bounds.getCenter(),
+			zoom: 7,
+			layers: [cloudmade],
+			maxBounds: bounds
+		});
+		
+		function capture1 () {
+		    bounds1 = map.getBounds();
+		}
+		
+		function capture2() {
+		    bounds2 = map.getBounds();
+		}
+		
+		function testBounds() {
+		    if (!(bounds1 && bounds2)) {
+		        alert("Bounds 1 and 2 have not been set");
+		        return;
+		    }
+		    alert("Bounds 1 " + (bounds1.equals(bounds2) ? "equals": "does not equal") + " bounds 2.")
+		}
+
+	</script>
+</body>
+</html>
\ No newline at end of file
diff --git a/src/geo/LatLngBounds.js b/src/geo/LatLngBounds.js
index 7a87ea47..58a64e35 100644
--- a/src/geo/LatLngBounds.js
+++ b/src/geo/LatLngBounds.js
@@ -80,6 +80,14 @@ L.LatLngBounds = L.Class.extend({
 		var sw = this._southWest,
 			ne = this._northEast;
 		return [sw.lng, sw.lat, ne.lng, ne.lat].join(',');
+	},
+	
+	equals: function (/*LatLngBounds*/ bounds) {
+		var equals = false;
+		if (bounds !== null) {
+			equals = (this._southWest.equals(bounds.getSouthWest()) && this._northEast.equals(bounds.getNorthEast()));
+		}
+		return equals;
 	}
 });
 
