[IMP] web,*: config: add XXS size to config.device

In Less, the size_class XXS is defined and used in media queries.
This rev. adds it in JS for sake of consistency.

Code in addons comparing the size_class needed to be adapted due
to the new XXS size_class.

Moreover, we now use the helper 'config.device.isMobile' everywhere
we should, instead of manually comparing the size_class.

Finally, we changed the way the config.device has to be specified
in the test environment. From now on, only the size_class should be
set, and the isMobile flag is computed automatically.

3 files changed, 3 insertions, 3 deletions

diff --git a/addons/web/static/src/js/views/basic/basic_view.js b/addons/web/static/src/js/views/basic/basic_view.js
index f428a83cd41..df9f9807bfd 100644
--- a/addons/web/static/src/js/views/basic/basic_view.js
+++ b/addons/web/static/src/js/views/basic/basic_view.js
@@ -246,7 +246,7 @@ var BasicView = AbstractView.extend({
                     }
                 }
                 if (mode.indexOf(',') !== -1) {
-                    mode = config.device.size_class !== config.device.SIZES.XS ? 'tree' : 'kanban';
+                    mode = config.device.isMobile ? 'kanban' : 'tree';
                 }
                 if (mode === 'tree') {
                     mode = 'list';
diff --git a/addons/web/static/src/js/views/form/form_renderer.js b/addons/web/static/src/js/views/form/form_renderer.js
index 779121de3e9..7d9c3cd2d78 100644
--- a/addons/web/static/src/js/views/form/form_renderer.js
+++ b/addons/web/static/src/js/views/form/form_renderer.js
@@ -279,7 +279,7 @@ var FormRenderer = BasicRenderer.extend({
         var visible_buttons = buttons_partition[1];
 
         // Get the unfolded buttons according to window size
-        var nb_buttons = [2, 4, 6, 7][config.device.size_class];
+        var nb_buttons = [2, 2, 4, 6, 7][config.device.size_class];
         var unfolded_buttons = visible_buttons.slice(0, nb_buttons).concat(invisible_buttons);
 
         // Get the folded buttons
diff --git a/addons/web/static/src/js/views/graph/graph_renderer.js b/addons/web/static/src/js/views/graph/graph_renderer.js
index 4d51f8786d0..07155e327e3 100644
--- a/addons/web/static/src/js/views/graph/graph_renderer.js
+++ b/addons/web/static/src/js/views/graph/graph_renderer.js
@@ -20,7 +20,7 @@ var qweb = core.qweb;
 var CHART_TYPES = ['pie', 'bar', 'line'];
 
 // hide top legend when too many items for device size
-var MAX_LEGEND_LENGTH = 25 * (1 + config.device.size_class);
+var MAX_LEGEND_LENGTH = 25 * (Math.max(1, config.device.size_class));
 
 return AbstractRenderer.extend({
     className: "o_graph_svg_container",