Allow enabled to be passed with actions as bool or fn of object

src/object-row.jsx

@@ -176,19 +176,29 @@ class ObjectRow extends React.Component {
       }
       if (this.props.actionsOpen && !this.props.object.disabled) {
         let actions = []
-        for (let actionId = 0; actionId < this.props.actions.length; actionId++) {
-          let action = this.props.actions[actionId]
+        this.props.actions.map((action, index) => {
+          let actionEnabled = action.enabled
+          let tooltip
+          if (!(actionEnabled === undefined)) {
+            if (typeof actionEnabled === 'function') actionEnabled = actionEnabled(this.props.object)
+            if (Array.isArray(actionEnabled)) {
+              [actionEnabled, tooltip] = actionEnabled
+            }
+          } else {
+            actionEnabled = true
+          }
           actions.push(
             <li
-              key={'action-' + actionId}
-              className="action"
-              onClick={this.onActionClick}
-              data-action={actionId}
-            >
+              key={'action-' + index}
+              title={tooltip}
+              className={classNames({'disabled': !actionEnabled}, 'action')}
+              onClick={actionEnabled ? this.onActionClick : null}
+              data-action={index}
+              >
               {action.label}
             </li>
-          )
-        }
+            )
+        })
         cells.push(
           <td
             key="actions"

src/object-table.sass

@@ -96,6 +96,13 @@ div.object-table-container
           &:hover
             background: $selection-colour
             color: #fff
+          &.disabled
+            cursor: not-allowed
+            color: $border-colour
+            &:hover
+              background: #fff
+              color: $border-colour
+
 
     td.uneditable
       background: #fafafa