[FIX] web,mail: widgets: replace $el.toggle() by do_toggle()

Since rev. 16eb36ff, do_show() and do_hide() on widgets toggle the classname
o_hidden on which the rule 'display: none' is defined, instead of calling
jQuery's show() and hide().

The method do_toggle(), sharing the same logic, has been introduced in rev.
74c5f772.

From now on, every widgets should call do_toggle() instead of $el.toggle() as
it will have undesiderable effects (they should call do_show() and do_hide()
instead of $el.show() and $el.hide() as well, this as been done in 16eb36ff).

This rev. replaces all calls to $el.toggle() by do_toggle(). It also adds
an optional argument to do_toggle() to force hidding or showing the widget.

addons/mail/static/src/js/mail.js

@@ -68,7 +68,7 @@ var TimelineRecordThread = form_common.AbstractField.extend ({
     },
 
     _check_visibility: function () {
-        this.$el.toggle(this.view.get("actual_mode") !== "create");
+        this.do_toggle(this.view.get("actual_mode") !== "create");
     },
 
     render_value: function () {

addons/web/static/src/css/base.css

@@ -1111,7 +1111,6 @@
 .openerp .oe_searchview {
   cursor: text;
   position: relative;
-  display: none;
   height: auto;
   padding-top: 1px;
   padding-bottom: 1px;

addons/web/static/src/css/base.sass

@@ -963,7 +963,6 @@ $sheet-padding: 16px
     .oe_searchview
         cursor: text
         position: relative
-        display: none
         height: auto
         padding-top: 1px
         padding-bottom: 1px

addons/web/static/src/js/control_panel.js

@@ -131,7 +131,7 @@ var ControlPanel = Widget.extend({
      * @param {Boolean} [visible] true to show the control panel, false to hide it
      */
     _toggle_visibility: function(visible) {
-        this.$el.toggle(visible);
+        this.do_toggle(visible);
         if (!visible && !this.$content) {
             this.$content = this.$el.contents().detach();
         } else if (this.$content) {

addons/web/static/src/js/framework/widget.js

@@ -346,17 +346,27 @@ var Widget = core.Class.extend(mixins.PropertiesMixin, {
             return this.$el;
         return this.$el.find(selector);
     },
+    /**
+     * Displays the widget
+     */
     do_show: function () {
         this.$el.removeClass('o_hidden');
     },
+    /**
+     * Hides the widget
+     */
     do_hide: function () {
         this.$el.addClass('o_hidden');
     },
-    do_toggle: function () {
-        if (this.$el.hasClass('o_hidden')) {
-            this.do_show();
+    /**
+     * Displays or hides the widget
+     * @param {Boolean} [display] use true to show the widget or false to hide it
+     */
+    do_toggle: function (display) {
+        if (_.isBoolean(display)) {
+            display ? this.do_show() : this.do_hide();
         } else {
-            this.do_hide();
+            this.$el.hasClass('o_hidden') ? this.do_show() : this.do_hide();
         }
     },
     /**

addons/web/static/src/js/views/form_view.js

@@ -270,9 +270,8 @@ var FormView = View.extend(common.FieldManagerMixin, {
      * Show or hide the sidebar according to the actual_mode
      */
     toggle_sidebar: function() {
-        var view_mode = this.get("actual_mode") === "view";
         if (this.sidebar) {
-            this.sidebar.$el.toggle(view_mode);
+            this.sidebar.do_toggle(this.get("actual_mode") === "view");
         }
     },
     widgetFocused: function() {

addons/web/static/src/js/views/form_widgets.js

@@ -1069,7 +1069,7 @@ var FieldReference = common.AbstractField.extend(common.ReinitializeFieldMixin,
         }
         this.m2o.field.relation = this.get('value')[0];
         this.m2o.set_value(this.get('value')[1]);
-        this.m2o.$el.toggle(!!this.get('value')[0]);
+        this.m2o.do_toggle(!!this.get('value')[0]);
         this.reference_ready = true;
     },
 });

addons/web/static/src/js/views/search_view.js

@@ -510,7 +510,7 @@ var SearchView = Widget.extend(/** @lends instance.web.SearchView# */{
         };
     },
     toggle_visibility: function (is_visible) {
-        this.$el.toggle(!this.headless && is_visible);
+        this.do_toggle(!this.headless && is_visible);
         if (this.$buttons) {
             this.$buttons.toggle(!this.headless && is_visible && this.visible_filters);
         }