4 files changed, 26 insertions, 0 deletions
diff --git a/app/assets/javascripts/boards/stores/actions.js b/app/assets/javascripts/boards/stores/actions.js
index 585e0615e90..f51cc547f32 100644
--- a/app/assets/javascripts/boards/stores/actions.js
+++ b/app/assets/javascripts/boards/stores/actions.js
@@ -534,6 +534,17 @@ export default {
     commit(types.SET_SELECTED_PROJECT, project);
   },
 
+  toggleBoardItemMultiSelection: ({ commit, state }, boardItem) => {
+    const { selectedBoardItems } = state;
+    const index = selectedBoardItems.indexOf(boardItem);
+
+    if (index === -1) {
+      commit(types.ADD_BOARD_ITEM_TO_SELECTION, boardItem);
+    } else {
+      commit(types.REMOVE_BOARD_ITEM_FROM_SELECTION, boardItem);
+    }
+  },
+
   fetchBacklog: () => {
     notImplemented();
   },
diff --git a/app/assets/javascripts/boards/stores/mutation_types.js b/app/assets/javascripts/boards/stores/mutation_types.js
index 2db754b7ac8..443c3461012 100644
--- a/app/assets/javascripts/boards/stores/mutation_types.js
+++ b/app/assets/javascripts/boards/stores/mutation_types.js
@@ -40,3 +40,5 @@ export const REQUEST_GROUP_PROJECTS = 'REQUEST_GROUP_PROJECTS';
 export const RECEIVE_GROUP_PROJECTS_SUCCESS = 'RECEIVE_GROUP_PROJECTS_SUCCESS';
 export const RECEIVE_GROUP_PROJECTS_FAILURE = 'RECEIVE_GROUP_PROJECTS_FAILURE';
 export const SET_SELECTED_PROJECT = 'SET_SELECTED_PROJECT';
+export const ADD_BOARD_ITEM_TO_SELECTION = 'ADD_BOARD_ITEM_TO_SELECTION';
+export const REMOVE_BOARD_ITEM_FROM_SELECTION = 'REMOVE_BOARD_ITEM_FROM_SELECTION';
diff --git a/app/assets/javascripts/boards/stores/mutations.js b/app/assets/javascripts/boards/stores/mutations.js
index 76476fce5a3..82a0ba578dc 100644
--- a/app/assets/javascripts/boards/stores/mutations.js
+++ b/app/assets/javascripts/boards/stores/mutations.js
@@ -258,4 +258,16 @@ export default {
   [mutationTypes.SET_SELECTED_PROJECT]: (state, project) => {
     state.selectedProject = project;
   },
+
+  [mutationTypes.ADD_BOARD_ITEM_TO_SELECTION]: (state, boardItem) => {
+    state.selectedBoardItems = [...state.selectedBoardItems, boardItem];
+  },
+
+  [mutationTypes.REMOVE_BOARD_ITEM_FROM_SELECTION]: (state, boardItem) => {
+    Vue.set(
+      state,
+      'selectedBoardItems',
+      state.selectedBoardItems.filter((obj) => obj !== boardItem),
+    );
+  },
 };
diff --git a/app/assets/javascripts/boards/stores/state.js b/app/assets/javascripts/boards/stores/state.js
index 215195a2a4f..d2e10fbf29b 100644
--- a/app/assets/javascripts/boards/stores/state.js
+++ b/app/assets/javascripts/boards/stores/state.js
@@ -15,6 +15,7 @@ export default () => ({
   filterParams: {},
   boardConfig: {},
   labels: [],
+  selectedBoardItems: [],
   groupProjects: [],
   groupProjectsFlags: {
     isLoading: false,