[IMP] web: keyboard navigation in kanban view

    1. Added the ability to navigate within the kanban view using UP,
        DOWN, LEFT and RIGHT keys.
    2. By defaults, the focus should be set on the search input field.
    3. From the search input field, using the DOWN key, the focus goes
        to the first card of the kanban
    4. From the search input field, using TAB key, the focus goes to the
        create button
    5. From the create/import buttons, using TAB or DOWN key goes to the
        first card of the kanban, then UP and DOWN keys moves the focus
        from card to card in the same column or if it is not a grouped
        view from left to right.
    6. In grouped view, LEFT and RIGHT keys moves the focus to the next
        column
    7. When on a card, hitting ENTER opens the view of that card.

Not included in this commit
    1. Memorize the position on the kanban when opening an card, than restoring
        when going back to that kanban

1 files changed, 7 insertions, 7 deletions

diff --git a/addons/web/static/src/xml/base.xml b/addons/web/static/src/xml/base.xml
index 4a1bccc2850..ccd98c10962 100644
--- a/addons/web/static/src/xml/base.xml
+++ b/addons/web/static/src/xml/base.xml
@@ -203,7 +203,7 @@
         <button type="button" t-att-accesskey="view.accessKey"
             t-attf-class="btn btn-icon fa fa-lg #{view.icon} o_cp_switch_#{view.type}"
             t-att-aria-label="view.type"
-            t-att-data-view-type="view.type" t-att-title="view.label"/>
+            t-att-data-view-type="view.type" t-att-title="view.label" tabindex="-1"/>
     </t>
 </t>
 
@@ -1033,7 +1033,7 @@
     <ul class="dropdown-menu o_searchview_autocomplete" role="menu"></ul>
 </t>
 <div t-name="SearchView.FilterMenu" class="btn-group o_dropdown">
-    <button class="o_dropdown_toggler_btn btn btn-sm dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
+    <button class="o_dropdown_toggler_btn btn btn-sm dropdown-toggle" data-toggle="dropdown" aria-expanded="false" tabindex="-1">
         <span class="fa fa-filter"/> Filters <span class="caret"/>
     </button>
     <ul class="dropdown-menu o_filters_menu" role="menu">
@@ -1145,7 +1145,7 @@
     </select>
 </t>
 <div t-name="SearchView.GroupByMenu" class="btn-group hidden-xs o_dropdown">
-    <button class="o_dropdown_toggler_btn btn btn-sm dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
+    <button class="o_dropdown_toggler_btn btn btn-sm dropdown-toggle" data-toggle="dropdown" aria-expanded="false" tabindex="-1">
         <span class="fa fa-bars"/> Group By <span class="caret"/>
     </button>
     <ul class="dropdown-menu o_group_by_menu" role="menu">
@@ -1162,11 +1162,11 @@
         </t>
     </select></li>
     <li>
-        <button type="button" class="btn btn-primary btn-sm o_add_group o_select_group">Apply</button>
+        <button type="button" class="btn btn-primary btn-sm o_add_group o_select_group" tabindex="-1">Apply</button>
     </li>
 </t>
 <div t-name="SearchView.FavoriteMenu" class="btn-group o_dropdown">
-    <button class="o_dropdown_toggler_btn btn btn-sm dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
+    <button class="o_dropdown_toggler_btn btn btn-sm dropdown-toggle" data-toggle="dropdown" aria-expanded="false" tabindex="-1">
         <span class="fa fa-star"/> Favorites <span class="caret"/>
     </button>
     <ul class="dropdown-menu o_favorites_menu" role="menu">
@@ -1310,8 +1310,8 @@
             <t t-set="att_prev" t-value="{'accesskey': 'p'}" />
             <t t-set="att_next" t-value="{'accesskey': 'n'}" />
         </t>
-        <button type="button" class="fa fa-chevron-left btn btn-icon o_pager_previous" t-att="att_prev" aria-label="Previous"/>
-        <button type="button" class="fa fa-chevron-right btn btn-icon o_pager_next" t-att="att_next" aria-label="Next"/>
+        <button type="button" class="fa fa-chevron-left btn btn-icon o_pager_previous" t-att="att_prev" aria-label="Previous" tabindex="-1"/>
+        <button type="button" class="fa fa-chevron-right btn btn-icon o_pager_next" t-att="att_next" aria-label="Next" tabindex="-1"/>
     </span>
 </div>