[IMP] Web et al.: ControlPanel extracted from ViewManager

The ControlPanel is still instantiated by the ViewManager.

Changes details:
* web: views.js:
    Code related to views header is extracted from the ViewManager
    to a new Widget named ControlPanel.

    Also uses the headless flag to tell the inner view not to put
    its buttons (use case: kanban) or pager (use case: list) in the
    header as it is hidden.
* web: view_form.js, base.xml:
    Uses the headless flag at initialization of the One2ManyViewManager
    widget instead of extending the ViewManager template (which doesn't
    handle the header anymore).

* web: view_list.js:
    Test on this.options.$pager instead of this.options.$buttons
    when dealing with pager.

    Note: the behavior for list view is unchanged and has a bug.
    If there are more then 80 records to display, only the 80th
    first are display, and as there is no pager, there is no way
    to see the remaining ones. A fix for this would be to use a
    light ControlPanel in One2Many views as well. With this,
    there won't be duplicated .oe-'view'-buttons/sidebar/pager
    anymore.

* web: view_graph.js, view_pivot.js:
    Only render buttons in non-headless mode

* web_dashboard: dashboard.js:
    Fix some references that were broken with ControlPanel extraction

* web_view_editor: web_view_editor.js:
    Extend ControlPanel instead of ViewManager

* Changes in selector of ControlPanel elements in several addons:
    * base_import
    * mail
    * web

1 files changed, 2 insertions, 2 deletions

diff --git a/addons/web_view_editor/static/src/js/view_editor.js b/addons/web_view_editor/static/src/js/view_editor.js
index ac41cb953bd..1e8c21a9dba 100644
--- a/addons/web_view_editor/static/src/js/view_editor.js
+++ b/addons/web_view_editor/static/src/js/view_editor.js
@@ -2,6 +2,7 @@ odoo.define('web_view_editor.view_editor', function (require) {
 "use strict";
 
 var ActionManager = require('web.ActionManager');
+var ControlPanel = require('web.ControlPanel');
 var core = require('web.core');
 var data = require('web.data');
 var Dialog = require('web.Dialog');
@@ -9,13 +10,12 @@ var formats = require('web.formats');
 var Registry = require('web.Registry');
 var session = require('web.session');
 var utils = require('web.utils');
-var ViewManager = require('web.ViewManager');
 var Widget = require('web.Widget');
 
 var QWeb = core.qweb;
 var _t = core._t;
 
-ViewManager.include({
+ControlPanel.include({
     on_debug_changed:function(evt){
         var val = $(evt.target).data('action'),
             current_view = this.active_view.controller;