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authorChristopher Baines <mail@cbaines.net>2015-03-31 22:36:41 +0100
committerChristopher Baines <mail@cbaines.net>2015-03-31 22:36:41 +0100
commit72a81b5cce180291e1c8012b37402babe630a3f2 (patch)
treec7f2e4878f045e15e92efb0087ab907395ba129b
parent1e3a7c1bfedd64e4f47b6b2c4d4a2faed3277942 (diff)
downloadleaflet-indoor-ie8.tar
leaflet-indoor-ie8.tar.gz
Add polyfills for Internet Explorer 8ie8
-rw-r--r--leaflet-indoor.js101
1 files changed, 101 insertions, 0 deletions
diff --git a/leaflet-indoor.js b/leaflet-indoor.js
index 835d66f..6256e73 100644
--- a/leaflet-indoor.js
+++ b/leaflet-indoor.js
@@ -296,3 +296,104 @@ L.Control.Level = L.Control.extend({
L.Control.level = function (options) {
return new L.Control.Level(options);
};
+
+// Production steps of ECMA-262, Edition 5, 15.4.4.18
+// Reference: http://es5.github.io/#x15.4.4.18
+if (!Array.prototype.forEach) {
+
+ Array.prototype.forEach = function(callback, thisArg) {
+
+ var T, k;
+
+ if (this == null) {
+ throw new TypeError(' this is null or not defined');
+ }
+
+ // 1. Let O be the result of calling ToObject passing the |this| value as the argument.
+ var O = Object(this);
+
+ // 2. Let lenValue be the result of calling the Get internal method of O with the argument "length".
+ // 3. Let len be ToUint32(lenValue).
+ var len = O.length >>> 0;
+
+ // 4. If IsCallable(callback) is false, throw a TypeError exception.
+ // See: http://es5.github.com/#x9.11
+ if (typeof callback !== "function") {
+ throw new TypeError(callback + ' is not a function');
+ }
+
+ // 5. If thisArg was supplied, let T be thisArg; else let T be undefined.
+ if (arguments.length > 1) {
+ T = thisArg;
+ }
+
+ // 6. Let k be 0
+ k = 0;
+
+ // 7. Repeat, while k < len
+ while (k < len) {
+
+ var kValue;
+
+ // a. Let Pk be ToString(k).
+ // This is implicit for LHS operands of the in operator
+ // b. Let kPresent be the result of calling the HasProperty internal method of O with argument Pk.
+ // This step can be combined with c
+ // c. If kPresent is true, then
+ if (k in O) {
+
+ // i. Let kValue be the result of calling the Get internal method of O with argument Pk.
+ kValue = O[k];
+
+ // ii. Call the Call internal method of callback with T as the this value and
+ // argument list containing kValue, k, and O.
+ callback.call(T, kValue, k, O);
+ }
+ // d. Increase k by 1.
+ k++;
+ }
+ // 8. return undefined
+ };
+}
+
+// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
+if (!Object.keys) {
+ Object.keys = (function() {
+ 'use strict';
+ var hasOwnProperty = Object.prototype.hasOwnProperty,
+ hasDontEnumBug = !({ toString: null }).propertyIsEnumerable('toString'),
+ dontEnums = [
+ 'toString',
+ 'toLocaleString',
+ 'valueOf',
+ 'hasOwnProperty',
+ 'isPrototypeOf',
+ 'propertyIsEnumerable',
+ 'constructor'
+ ],
+ dontEnumsLength = dontEnums.length;
+
+ return function(obj) {
+ if (typeof obj !== 'object' && (typeof obj !== 'function' || obj === null)) {
+ throw new TypeError('Object.keys called on non-object');
+ }
+
+ var result = [], prop, i;
+
+ for (prop in obj) {
+ if (hasOwnProperty.call(obj, prop)) {
+ result.push(prop);
+ }
+ }
+
+ if (hasDontEnumBug) {
+ for (i = 0; i < dontEnumsLength; i++) {
+ if (hasOwnProperty.call(obj, dontEnums[i])) {
+ result.push(dontEnums[i]);
+ }
+ }
+ }
+ return result;
+ };
+ }());
+}