From 05219a54cd496b155ab17a7c59151d2ad375d9b8 Mon Sep 17 00:00:00 2001
From: Brian Ford <btford@umich.edu>
Date: Wed, 6 May 2015 18:23:34 -0700
Subject: [PATCH] feat(dom): add getBaseHref method

---
 modules/angular2/src/dom/browser_adapter.dart |  5 +++++
 modules/angular2/src/dom/browser_adapter.es6  | 13 +++++++++++++
 modules/angular2/src/dom/dom_adapter.js       |  3 +++
 modules/angular2/src/dom/html_adapter.dart    |  3 +++
 4 files changed, 24 insertions(+)

diff --git a/modules/angular2/src/dom/browser_adapter.dart b/modules/angular2/src/dom/browser_adapter.dart
index f85414530b..48161b9f1b 100644
--- a/modules/angular2/src/dom/browser_adapter.dart
+++ b/modules/angular2/src/dom/browser_adapter.dart
@@ -318,4 +318,9 @@ class BrowserDomAdapter extends GenericBrowserDomAdapter {
   getLocation() {
     return window.location;
   }
+  getBaseHref() {
+    var uri = document.baseUri;
+    var baseUri = Uri.parse(uri);
+    return baseUri.path;
+  }
 }
diff --git a/modules/angular2/src/dom/browser_adapter.es6 b/modules/angular2/src/dom/browser_adapter.es6
index 4990b95cc2..223aa872e8 100644
--- a/modules/angular2/src/dom/browser_adapter.es6
+++ b/modules/angular2/src/dom/browser_adapter.es6
@@ -381,4 +381,17 @@ export class BrowserDomAdapter extends GenericBrowserDomAdapter {
   getLocation() {
     return window.location;
   }
+  getBaseHref() {
+    return relativePath(document.baseURI);
+  }
+}
+
+// based on urlUtils.js in AngularJS 1
+var urlParsingNode = null;
+function relativePath(url) {
+  if (isBlank(urlParsingNode)) {
+    urlParsingNode = document.createElement("a");
+  }
+  urlParsingNode.setAttribute('href', url);
+  return (urlParsingNode.pathname.charAt(0) === '/') ? urlParsingNode.pathname : '/' + urlParsingNode.pathname;
 }
diff --git a/modules/angular2/src/dom/dom_adapter.js b/modules/angular2/src/dom/dom_adapter.js
index cff55c4b6b..2c2662e375 100644
--- a/modules/angular2/src/dom/dom_adapter.js
+++ b/modules/angular2/src/dom/dom_adapter.js
@@ -292,4 +292,7 @@ export class DomAdapter {
   getLocation() {
     throw _abstract();
   }
+  getBaseHref() {
+    throw _abstract();
+  }
 }
diff --git a/modules/angular2/src/dom/html_adapter.dart b/modules/angular2/src/dom/html_adapter.dart
index 611e50239c..e3e309a3fb 100644
--- a/modules/angular2/src/dom/html_adapter.dart
+++ b/modules/angular2/src/dom/html_adapter.dart
@@ -297,4 +297,7 @@ class Html5LibDomAdapter implements DomAdapter {
   getLocation() {
     throw 'not implemented';
   }
+  getBaseHref() {
+    throw 'not implemented';
+  }
 }