From ba186b216b6a2fef9bfbe069c418aa852e30b168 Mon Sep 17 00:00:00 2001
From: Bart van den Eijnden <bartvde@boundlessgeo.com>
Date: Mon, 9 Feb 2015 10:19:18 +0100
Subject: [PATCH] Show error dialog when WPS execution fails (see
 https://github.com/MapStory/story-tools/issues/144)

---
 .../style/services/layerClassificationService.js  | 15 +++++++++++----
 lib/templates/core/error-dialog.html              | 11 +++++++++++
 2 files changed, 22 insertions(+), 4 deletions(-)
 create mode 100644 lib/templates/core/error-dialog.html

diff --git a/lib/ng/edit/style/services/layerClassificationService.js b/lib/ng/edit/style/services/layerClassificationService.js
index 89adb62..1fc8e67 100644
--- a/lib/ng/edit/style/services/layerClassificationService.js
+++ b/lib/ng/edit/style/services/layerClassificationService.js
@@ -3,7 +3,7 @@
 
     var module = angular.module('storytools.edit.style.layerClassificationService', []);
 
-    module.factory('stLayerClassificationService', function($q, $http) {
+    module.factory('stLayerClassificationService', function($q, $http, $modal, $sce, $log) {
         return {
             classify: function(layer, attribute, method, numClasses) {
                 if (!this.cache) {
@@ -81,9 +81,16 @@
                                 service.cache[key] = response.rules;
                                 return response.rules;
                             } else {
-                                if (window.console) {
-                                    window.console.warn(response.msg);
-                                }
+                                $modal.open({
+                                    templateUrl: '/lib/templates/core/error-dialog.html',
+                                    controller: function($scope) {
+                                        $scope.title = 'Error';
+                                        $scope.msg = $sce.trustAsHtml(
+                                            'An error occurred when communicating with the classification ' + 
+                                            'service: <br/>' + response.msg);
+                                    }
+                                });
+                                $log.warn(response.msg);
                                 return [];
                             }
                         });
diff --git a/lib/templates/core/error-dialog.html b/lib/templates/core/error-dialog.html
new file mode 100644
index 0000000..dccb082
--- /dev/null
+++ b/lib/templates/core/error-dialog.html
@@ -0,0 +1,11 @@
+<div>
+    <div class="modal-header">
+        <h3 class="modal-title">{{title}}</h3>
+    </div>
+    <div class="modal-body">
+       <span ng-bind-html="msg"></span>
+    </div>
+    <div class="modal-footer">
+        <button class="btn btn-primary" ng-click="$close()">OK</button>
+    </div>
+</div>