focus feed url input when modal opens

src/main/webapp/js/directives.js

@@ -1,5 +1,21 @@
 var module = angular.module('commafeed.directives', []);
 
+module.directive('focus', [ '$timeout', function($timeout) {
+	return {
+		restrict : 'A',
+		link : function(scope, element, attrs) {
+			scope.$watch(attrs.focus, function(value) {
+				if (!value)
+					return;
+				$timeout(function() {
+					$(element).focus();
+				});
+			});
+		}
+	};
+} ]);
+
+
 /**
  * Open a popup window pointing to the url in the href attribute
  */

src/main/webapp/templates/_subscribe.html

@@ -20,7 +20,7 @@
 					<label class="control-label">${subscribe.feed_url}</label>
 					<div class="controls">
 						<input type="text" name="url" ng-model="sub.url" ng-blur="urlChanged()" placeholder="http://example.com/feed" 
-							class="input-block-level" required ng-disabled="state=='loading'"></input>
+							class="input-block-level" required ng-disabled="state=='loading'" focus="isOpen"></input>
 						<span class="help-block" ng-show="!subscribeForm.url.$valid">${global.required}</span>
 					</div>
 				</div>