Add Calculate Expression action

src/actions.ts

@@ -26,6 +26,7 @@ import SetName from "~/actions/set-name";
 import Output from "~/actions/output";
 import CopyToClipboard from "~/actions/copy-to-clipboard";
 import RunShortcut from "~/actions/run-shortcut";
+import CalculateExpression from "~/actions/calculate-expression";
 
 interface ActionDefinitions {
     [key: string]: ActionDefinition
@@ -73,6 +74,7 @@ export let actions: ActionDefinitions = {
     'output': Output,
     'setclipboard': CopyToClipboard,
     'runworkflow': RunShortcut,
+    'calculateexpression': CalculateExpression,
 };
 
 export function actionText(value: string): HTMLElement {

src/actions/calculate-expression.ts

@@ -0,0 +1,20 @@
+import {renderValue} from "~/value";
+import {renderActionHeader} from "~/render";
+import {actions} from "~/actions";
+
+interface CalculateExpressionParameters {
+    Input: string | object
+}
+
+export default {
+    title: "Calculate expression",
+    icon: 'f_cursive_circle',
+    background: '#8e8e93',
+    render: (container: HTMLElement, params: CalculateExpressionParameters) => {
+        container.className += ' sp-date-action';
+
+        return renderActionHeader(actions['calculateexpression'],
+            renderValue(params['Input'], '7 + 7'),
+        );
+    }
+}