Prevent dropdown from closing when user clicks in a build.

app/assets/javascripts/mini_pipeline_graph_dropdown.js

@@ -21,6 +21,8 @@
       this.container = opts.container || '';
       this.dropdownListSelector = '.js-builds-dropdown-container';
       this.getBuildsList = this.getBuildsList.bind(this);
+
+      this.stopDropdownClickPropagation();
     }
 
     /**
@@ -32,6 +34,20 @@
     }
 
     /**
+     * When the user right clicks or cmd/ctrl + click in the job name
+     * the dropdown should not be closed and the link should open in another tab,
+     * so we stop propagation of the click event inside the dropdown.
+     *
+     * Since this component is rendered multiple times per page we need to guarantee we only
+     * target the click event of this component.
+     */
+    stopDropdownClickPropagation() {
+      $(document).on('click', `${this.container} .js-builds-dropdown-list a.mini-pipeline-graph-dropdown-item`, (e) => {
+        e.stopPropagation();
+      });
+    }
+
+    /**
      * For the clicked stage, renders the given data in the dropdown list.
      *
      * @param  {HTMLElement} stageContainer

spec/javascripts/mini_pipeline_graph_dropdown_spec.js

@@ -46,6 +46,21 @@ require('~/mini_pipeline_graph_dropdown');
         document.querySelector('.js-builds-dropdown-button').click();
         expect(ajaxSpy.calls.allArgs()[0][0].url).toEqual('foobar');
       });
+
+      it('should not close when user uses cmd/ctrl + click', () => {
+        spyOn($, 'ajax').and.callFake(function (params) {
+          params.success({
+            html: '\u003cli\u003e\n\u003ca class="mini-pipeline-graph-dropdown-item" href="#"\u003e\u003cspan class="ci-status-icon ci-status-icon-failed"\u003e\u003c/span\u003e\n\u003cspan class="ci-build-text"\u003ebuild\u003c/span\u003e\n\u003c/a\u003e\u003ca class="ci-action-icon-wrapper js-ci-action-icon" href="#"\u003e\u003c/a\u003e\n\u003c/li\u003e\n',
+          });
+        });
+        new gl.MiniPipelineGraph({ container: '.js-builds-dropdown-tests' }).bindEvents();
+
+        document.querySelector('.js-builds-dropdown-button').click();
+
+        document.querySelector('a.mini-pipeline-graph-dropdown-item').click();
+
+        expect($('.js-builds-dropdown-list').is(':visible')).toEqual(true);
+      });
     });
   });
 })();