fallback config

fallback.diff

diff --git a/settings/settings.pro b/settings/settings.pro
index b4dc60b..d9c8f10 100644
--- a/settings/settings.pro
+++ b/settings/settings.pro
@@ -4,7 +4,7 @@ entries.path = /usr/share/jolla-settings/entries
 entries.files = camera-settings.json
 
 pages.path = /usr/share/jolla-settings/pages/camera-settings-plugin
-pages.files = settings.qml
+pages.files = settings.qml camera-resolutions.json
 
 translations.path = /usr/share/translations
 translations.files = i18n/*.qm
@@ -15,7 +15,8 @@ system(lrelease -idbased $$PWD/i18n/*.ts)
 OTHER_FILES += \
     camera-settings.json \
     settings.qml \
-    i18n/*.ts
+    i18n/*.ts \
+    camera-resolutions.json
 
 TRANSLATIONS += i18n/*.ts
     
diff --git a/settings/settings.qml b/settings/settings.qml
index a698004..423c8a7 100644
--- a/settings/settings.qml
+++ b/settings/settings.qml
@@ -7,6 +7,7 @@ Page
 {
     id: page
 
+    property string settingsConfig: "/etc/camera-settings/camera-resolutions.json"
     property string viewfinderResolution_4_3: "1440x1080"
     property string viewfinderResolution_16_9: "1920x1080"
 
@@ -203,7 +204,14 @@ Page
 
     Component.onCompleted:
     {
-        request("/etc/camera-settings/camera-resolutions.json", function(o)
+        doesFileExist(settingsConfig, function(o)
+        {
+            if(!o.responseText)
+                var settings_config = "./camera-resolutions.json";
+            else
+                var settings_config = settingsConfig;
+
+        request(settings_config, function(o)
         {
             var data = JSON.parse(o.responseText)
 
@@ -230,7 +238,7 @@ Page
 
             viewfinderResolution_4_3 = data.viewfinder.viewfinderResolution_4_3
             viewfinderResolution_16_9 = data.viewfinder.viewfinderResolution_16_9
-        })
+        })})
     }
 
     function set(model, index, combo, confval, vfconfval)
@@ -273,5 +281,19 @@ Page
         xhr.open('GET', url, true);
         xhr.send('');
     }
+
+    function doesFileExist(url, callback)
+    {
+        var xhr = new XMLHttpRequest();
+        xhr.open('GET', url, true);
+        xhr.send('');
+        xhr.onreadystatechange = (function(myxhr)
+        {
+            return function()
+            {
+                if(myxhr.readyState === 4) callback(myxhr);
+            }
+        })(xhr);
+    }
 }