Added LatLngBounds intersects method, closed #350

CHANGELOG.md

@@ -23,6 +23,7 @@ Leaflet Changelog
 #### API improvements
 
  * Improved `LatLng` constructor to be more tolerant (and throw descriptive error if latitude or longitude can't be interpreted as a number). [#136](https://github.com/CloudMade/Leaflet/issues/136)
+ * Added `LatLngBounds` `intersects(otherBounds)` method (thanks to [@pagameba](https://github.com/pagameba)). [#350](https://github.com/CloudMade/Leaflet/pull/350)
  * Added `urlParams` third optional argument to `TileLayer` constructor for convenience: an object with properties that will be evaluated in the URL template.
  * Added `L.Util.template` method for simple string template evaluation.
  * Added second argument `inside` to `map` `getBoundsZoom` method that allows you to get appropriate zoom for the view to fit *inside* the given bounds.

dist/leaflet-src.js

@@ -757,6 +757,16 @@ L.LatLngBounds = L.Class.extend({
 				(sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
 	},
 
+	intersects: function (/*LatLngBounds*/ bounds) {
+		var sw = bounds.getSouthWest(),
+			ne = bounds.getNorthEast(),
+			nw = bounds.getNorthWest(),
+			se = bounds.getSouthEast();
+
+		return this.contains(sw) || this.contains(ne) ||
+				this.contains(nw) || this.contains(se);
+	},
+
 	toBBoxString: function () {
 		var sw = this._southWest,
 			ne = this._northEast;

src/geo/LatLngBounds.js

@@ -64,6 +64,16 @@ L.LatLngBounds = L.Class.extend({
 				(sw2.lng >= sw.lng) && (ne2.lng <= ne.lng);
 	},
 
+	intersects: function (/*LatLngBounds*/ bounds) {
+		var sw = bounds.getSouthWest(),
+			ne = bounds.getNorthEast(),
+			nw = bounds.getNorthWest(),
+			se = bounds.getSouthEast();
+
+		return this.contains(sw) || this.contains(ne) ||
+				this.contains(nw) || this.contains(se);
+	},
+
 	toBBoxString: function () {
 		var sw = this._southWest,
 			ne = this._northEast;