first Blockly functionalities

Attention: the buttons currently trigger an error

src/actions/types.js

@@ -0,0 +1,5 @@
+export const NEW_WORKSPACE = 'NEW_WORKSPACE';
+export const CREATE_BLOCK = 'CREATE_BLOCK';
+export const CHANGE_BLOCK = 'CHANGE_BLOCK';
+export const DELETE_BLOCK = 'DELETE_BLOCK';
+export const CLEAR_STATS = 'CLEAR_STATS';

src/actions/workspaceActions.js

@@ -0,0 +1,53 @@
+import { NEW_WORKSPACE, CREATE_BLOCK, CHANGE_BLOCK, DELETE_BLOCK, CLEAR_STATS } from './types';
+
+export const onChangeWorkspace = (event) => (dispatch, getState) => {
+  var oldWorkspace = getState().workspace.new; // stored 'new workspace' is from now on old
+  var newWorkspace = window.Ardublockly.workspace;
+    dispatch({
+      type: NEW_WORKSPACE,
+      payload: {new: newWorkspace, old: oldWorkspace}
+    });
+    var stats = getState().workspace.stats;
+    if (event.type === window.Blockly.Events.CREATE){
+      stats.create += event.ids.length;
+      dispatch({
+        type: CREATE_BLOCK,
+        payload: stats
+      });
+    }
+    else if (event.type === window.Blockly.Events.CHANGE){
+      stats.change += 1;
+      dispatch({
+        type: CHANGE_BLOCK,
+        payload: stats
+      });
+    }
+    else if (event.type === window.Blockly.Events.DELETE){
+      if(stats.create > 0){
+        stats.delete += event.ids.length;
+        dispatch({
+          type: DELETE_BLOCK,
+          payload: stats
+        });
+      }
+    }
+};
+
+export const clearStats = () => (dispatch) => {
+  var stats = {
+    create: 0,
+    change: 0,
+    delete: 0
+  };
+  dispatch({
+    type: CLEAR_STATS,
+    payload: stats
+  });
+};
+
+export const setWorkspace = (workspace) => (dispatch, getState) => {
+  dispatch({
+    type: NEW_WORKSPACE,
+    payload: {new: workspace, old: getState().workspace.new}
+  });
+};