1 files changed, 96 insertions, 0 deletions
diff --git a/extlib/leaflet/src/core/Util.js b/extlib/leaflet/src/core/Util.js
new file mode 100644
index 00000000..28daa284
--- /dev/null
+++ b/extlib/leaflet/src/core/Util.js
@@ -0,0 +1,96 @@
+/*
+ * L.Util is a namespace for various utility functions.
+ */
+
+L.Util = {
+	extend: function(/*Object*/ dest) /*-> Object*/ {	// merge src properties into dest
+		var sources = Array.prototype.slice.call(arguments, 1);
+		for (var j = 0, len = sources.length, src; j < len; j++) {
+			src = sources[j] || {};
+			for (var i in src) {
+				if (src.hasOwnProperty(i)) {
+					dest[i] = src[i];
+				}
+			}
+		}
+		return dest;
+	},
+
+	bind: function(/*Function*/ fn, /*Object*/ obj) /*-> Object*/ {
+		return function() {
+			return fn.apply(obj, arguments);
+		};
+	},
+
+	stamp: (function() {
+		var lastId = 0, key = '_leaflet_id';
+		return function(/*Object*/ obj) {
+			obj[key] = obj[key] || ++lastId;
+			return obj[key];
+		};
+	})(),
+	
+	requestAnimFrame: (function() {
+		function timeoutDefer(callback) {
+			window.setTimeout(callback, 1000 / 60);
+		}
+		
+		var requestFn = window.requestAnimationFrame || 
+			window.webkitRequestAnimationFrame || 
+			window.mozRequestAnimationFrame || 
+			window.oRequestAnimationFrame || 
+			window.msRequestAnimationFrame || 
+			timeoutDefer;
+		
+		return function(callback, context, immediate) {
+			callback = context ? L.Util.bind(callback, context) : context;
+			if (immediate && requestFn === timeoutDefer) {
+				callback();
+			} else {
+				requestFn(callback);
+			}
+		};
+	})(),
+
+	limitExecByInterval: function(fn, time, context) {	
+		var lock, execOnUnlock, args;
+		function exec(){
+			lock = false;
+			if (execOnUnlock) {
+				args.callee.apply(context, args);
+				execOnUnlock = false;
+			}
+		}
+		return function() {
+			args = arguments;
+			if (!lock) {				
+				lock = true;
+				setTimeout(exec, time);
+				fn.apply(context, args);
+			} else {
+				execOnUnlock = true;
+			}
+		};
+	},
+	
+	falseFn: function() { return false; },
+	
+	formatNum: function(num, digits) {
+		var pow = Math.pow(10, digits || 5);
+		return Math.round(num * pow) / pow;
+	},
+	
+	setOptions: function(obj, options) {
+		obj.options = L.Util.extend({}, obj.options, options);
+	},
+	
+	getParamString: function(obj) {
+		var params = [];
+		for (var i in obj) {
+			if (obj.hasOwnProperty(i)) {
+				params.push(i + '=' + obj[i]);
+			}
+		}
+		return '?' + params.join('&');
+	}
+};