[REF] Rename the module according to the OCA naming convention

web_widget_many2many_tags_multi_selection/README.rst

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+Allows multiple selection on many2many_tags widget
+==================================================
+
+This module allows the user to select multiple entries through the search box in the case of the "many2many_tags" widget.
+
+Installation
+============
+
+It was tested on Odoo 8.0 branch.
+
+Credits
+=======
+
+Akretion
+
+Contributors
+------------
+
+* Sylvain Calador <sylvain.calador@akretion.com>
+
+Maintainer
+----------
+
+.. image:: http://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: http://odoo-community.org
+
+This module is maintained by the OCA.
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose mission is to support the collaborative development of Odoo features and promote its widespread use.
+
+To contribute to this module, please visit http://odoo-community.org.
+

web_widget_many2many_tags_multi_selection/__init__.py

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+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    Copyright (C) 2015-TODAY Akretion (<http://www.akretion.com>).
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################

web_widget_many2many_tags_multi_selection/__openerp__.py

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+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    Copyright (C) 2015-TODAY Akretion (<http://www.akretion.com>).
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+{
+    'name': 'web_widget_many2many_tags_multi_selection',
+    'version': '0.1',
+    'author': 'Akretion, Odoo Community Association (OCA)',
+    'depends': [
+        'web',
+    ],
+    'demo': [],
+    'website': 'https://www.akretion.com',
+    'data': [
+        'views/web_widget_many2many_tags_multi_selection.xml',
+    ],
+    'installable': True,
+    'auto_install': False,
+}

web_widget_many2many_tags_multi_selection/static/src/js/view_form.js

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+openerp.web_widget_many2many_tags_multi_selection = function(instance, local) {
+
+    var _t = instance.web._t;
+
+    instance.web.form.CompletionFieldMixin._search_create_popup = function(view, ids, context) {
+        var self = this;
+        var pop = new instance.web.form.SelectCreatePopup(this);
+        var domain = self.build_domain();
+
+        if (self.field.type == 'many2many') {
+            var selected_ids = self.get_search_blacklist();
+            if (selected_ids.length > 0) {
+                domain = new instance.web.CompoundDomain(domain, ["!", ["id", "in", selected_ids]]);
+            }
+        }
+
+        pop.select_element(
+            self.field.relation,
+            {
+                title: (view === 'search' ? _t("Search: ") : _t("Create: ")) + this.string,
+                initial_ids: ids ? _.map(ids, function(x) {return x[0];}) : undefined,
+                initial_view: view,
+                disable_multiple_selection: this.field.type != 'many2many',
+            },
+            domain,
+            new instance.web.CompoundContext(self.build_context(), context || {})
+        );
+        pop.on("elements_selected", self, function(element_ids) {
+            for(var i=0, len=element_ids.length; i<len;i++) {
+                self.add_id(element_ids[i]);
+                if (self.field.type != 'many2many') {
+                    break;
+                }
+            }
+            self.focus();
+        });
+    };
+}

web_widget_many2many_tags_multi_selection/views/web_widget_many2many_tags_multi_selection.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<openerp>
+    <data>
+        <template id="assets_backend" name="web_widget_many2many_tags_multi_selection" inherit_id="web.assets_backend">
+            <xpath expr="." position="inside">
+                <script type="text/javascript" src="/web_widget_many2many_tags_multi_selection/static/src/js/view_form.js"></script>
+            </xpath>
+        </template>
+    </data>
+</openerp>