Correctly handle back button on start screens

On the inital screens the android back button should quit the app, or if
on the map screen and you've started a report it should cancel it. Add
in a default back method to FMSView and an override method for the map,
exising report and offline screens
Fixes #117

5 files changed, 26 insertions, 2 deletions

diff --git a/src/js/router.js b/src/js/router.js
index 6745835..c42a742 100644
--- a/src/js/router.js
+++ b/src/js/router.js
@@ -37,8 +37,8 @@
             },
 
             back: function(e) {
-                if (this.currentView && this.currentView.prev) {
-                    this.currentView.onClickButtonPrev(e);
+                if (this.currentView && this.currentView.back) {
+                    this.currentView.back(e);
                 }
             },
 
diff --git a/src/js/views/around.js b/src/js/views/around.js
index 964bef4..d912198 100644
--- a/src/js/views/around.js
+++ b/src/js/views/around.js
@@ -77,6 +77,14 @@
                 }
             },
 
+            _back: function(e) {
+                if ( $('#confirm-map').css('display') == 'block' ) {
+                    this.onClickCancel(e);
+                } else {
+                    navigator.app.exitApp();
+                }
+            },
+
             setMapPosition: function( info ) {
                 var coords = info.coordinates;
                 fixmystreet.latitude = coords.latitude;
diff --git a/src/js/views/existing.js b/src/js/views/existing.js
index 0d16760..a34fd0b 100644
--- a/src/js/views/existing.js
+++ b/src/js/views/existing.js
@@ -13,6 +13,10 @@
                 'vclick #discard': 'discardReport'
             },
 
+            _back: function() {
+                navigator.app.exitApp();
+            },
+
             setHeight: function(content, height) {
                 content.css( 'min-height', content + 'px');
             },
diff --git a/src/js/views/fms.js b/src/js/views/fms.js
index f60bf77..214dc2c 100644
--- a/src/js/views/fms.js
+++ b/src/js/views/fms.js
@@ -13,6 +13,14 @@
                 'vclick .ui-btn-right': 'onClickButtonNext'
             },
 
+            back: function(e) {
+                if ( this._back ) {
+                    this._back(e);
+                } else if ( this.prev ) {
+                    this.onClickButtonPrev(e);
+                }
+            },
+
             render: function(){
                 if ( !this.template ) {
                     console.log('no template to render');
diff --git a/src/js/views/offline.js b/src/js/views/offline.js
index ff28e4b..c90cd90 100644
--- a/src/js/views/offline.js
+++ b/src/js/views/offline.js
@@ -22,6 +22,10 @@
                 'blur textarea': 'toggleNextButton'
             },
 
+            _back: function() {
+                navigator.app.exitApp();
+            },
+
             draftHasContent: function() {
                 var hasContent = false;