[ADD] web: link_button widget

Add a widget to make a link to an external page in a tree view

addons/web/static/src/js/fields/basic_fields.js

@@ -348,6 +348,49 @@ var FieldChar = InputField.extend(TranslatableFieldMixin, {
     },
 });
 
+
+var LinkButton = AbstractField.extend({
+    events: _.extend({}, AbstractField.prototype.events, {
+        'click': '_onClick'
+    }),
+    //--------------------------------------------------------------------------
+    // Private
+    //--------------------------------------------------------------------------
+
+    /**
+     * Display button
+     * @override
+     * @private
+     */
+    _render: function () {
+        if (this.value) {
+            var className = this.attrs.icon || 'fa-globe';
+
+            this.$el.html("<span />");
+            this.$el.addClass("fa "+ className);
+            this.$el.attr('title', this.value);
+        }
+    },
+
+    //--------------------------------------------------------------------------
+    // Handlers
+    //--------------------------------------------------------------------------
+
+    /**
+     * Open link button
+     *
+     * @private
+     * @param {MouseEvent} event
+     */
+    _onClick: function (event) {
+        event.stopPropagation();
+        window.open(this.value, '_blank');
+    },
+
+});
+
+
+
 var FieldDate = InputField.extend({
     className: "o_field_date",
     tagName: "span",
@@ -2451,6 +2494,7 @@ return {
     FieldBooleanButton: FieldBooleanButton,
     BooleanToggle: BooleanToggle,
     FieldChar: FieldChar,
+    LinkButton: LinkButton,
     FieldDate: FieldDate,
     FieldDateTime: FieldDateTime,
     FieldDomain: FieldDomain,